{"id":877,"date":"2009-11-10T15:20:35","date_gmt":"2009-11-10T14:20:35","guid":{"rendered":"http:\/\/www.randieri.com\/?post_type=jetpack-portfolio&#038;p=877"},"modified":"2018-03-09T11:58:20","modified_gmt":"2018-03-09T10:58:20","slug":"english-measurement-of-%cf%83-beam-asymmetry-in-%cf%800-photoproduction-off-the-neutron-in-the-second-and-third-resonances-region","status":"publish","type":"post","link":"https:\/\/www.randieri.com\/en\/english-measurement-of-%cf%83-beam-asymmetry-in-%cf%800-photoproduction-off-the-neutron-in-the-second-and-third-resonances-region\/","title":{"rendered":"Measurement of \u03a3 beam asymmetry in \u03c0\u00b0 photoproduction off the neutron in the second and third resonances region"},"content":{"rendered":"<p style=\"text-align: justify;\">The \u03a3 beam asymmetry in the photoproduction of neutral pions from quasi-free nucleons in a deuteron target was measured for the first time between 0.60 and 1.50GeV<!--more-->, with the GRAAL polarized and tagged photon beam. The asymmetry values from the quasi-free proton were found equal to the ones extracted from a pure proton target. The asymmetries from quasi-free proton and quasi-free neutron were found equal up to 0.82GeV and substantially different at higher energies. The results are compared with recent partial-wave analyses.<\/p>\n<p style=\"text-align: center;\"><div class=\"white-space\"><\/div><\/p>\n<p class=\"txt Stile1 Stile1\" style=\"text-align: center;\">\n<p style=\"text-align: center;\">________<\/p>\n<p style=\"text-align: justify;\">R. Di Salvo, A. Fantini, G. Mandaglio, F. Mammoliti, O. Bartalini, V. Bellini, J. P. Bocquet, L. Casano, A. D\u2019angelo, J. P. Didelez, D. Franco, G. Gervino, F. Ghio, G. Giardina, B. Girolami, A. Giusa, M. Guidal, E. Hourany, R. Kunne, A. Lapik, P. Levi Sandri, A. Lleres, M. Manganaro, D. Moricciani, A. N. Mushkarenkov, V. Nedorezov, <strong>C. Randieri<\/strong>, D. Rebreyend, N. Rudnev, G. Russo, C. Schaerf, M. L. Sperduto, M. C. Sutera, A. Turinge, V. Vegna, A. Fix, S. S. Kamalov, L. Tiator (2009).<\/p>\n<p style=\"text-align: justify;\"><strong><em>The European Physical Journal A, Hadrons and Nuclei<\/em> &#8211; November 2009, Vol. 42, Issue 2, pp. 151-157, ISSN: 1434-6001, doi: 10.1140\/epja\/i2009-10870-x.<\/strong><\/p>\n<p style=\"text-align: center;\">________<\/p>\n<p style=\"text-align: justify;\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"2251\" data-permalink=\"https:\/\/www.randieri.com\/en\/a-new-3d-vision-system-for-automation-systems-maintenance-intellisystem-randieri\/\" data-orig-file=\"https:\/\/i0.wp.com\/www.randieri.com\/randieri\/wp-content\/uploads\/Immagini_Pubblicazioni\/a-new-3d-vision-system-for-automation-systems-maintenance-intellisystem-randieri.jpg?fit=2500%2C1469&amp;ssl=1\" data-orig-size=\"2500,1469\" data-comments-opened=\"0\" data-image-meta=\"{&quot;orientation&quot;:&quot;1&quot;}\" data-image-title=\"A New 3D Vision System for Automation Systems Maintenance &amp;#8211; Intellisystem Randieri\" data-image-description=\"&lt;p&gt;A New 3D Vision System for Automation Systems Maintenance &amp;#8211; Intellisystem Randieri&lt;\/p&gt;\n\" data-image-caption=\"&lt;p&gt;A New 3D Vision System for Automation Systems Maintenance &amp;#8211; Intellisystem Randieri&lt;\/p&gt;\n\" data-large-file=\"https:\/\/i0.wp.com\/www.randieri.com\/randieri\/wp-content\/uploads\/Immagini_Pubblicazioni\/a-new-3d-vision-system-for-automation-systems-maintenance-intellisystem-randieri.jpg?fit=1024%2C602&amp;ssl=1\" class=\" wp-image-2251 alignleft\" src=\"https:\/\/i0.wp.com\/www.intellisystem.it\/Intellisystem\/wp-content\/uploads\/Loghi%20Pubblicazioni\/European-Physical-Journal-A-300x121.jpg?resize=218%2C88\" alt=\"European Physical Journal A\" width=\"218\" height=\"88\" \/><em>The European Physical Journal (EPJ) is a series of peer-reviewed journals indexed in all major citation databases, and covering the whole spectrum of pure and applied physics, including related interdisciplinary subjects. In particular,\u00a0The\u00a0<strong>European Physical Journal A (EPJ A)<\/strong>\u00a0presents new and original research results in Hadron physics and Nuclear physics, in a variety of formats, including Regular Articles, Reviews, Tools for Experiment and Theory\/Scientific Notes and Letters.<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>The \u03a3 beam asymmetry in the photoproduction of neutral pions from quasi-free nucleons in a deuteron target was measured for the first time between 0.60 and 1.50GeV<\/p>\n","protected":false},"author":1,"featured_media":1911,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"image","meta":{"om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_hide_featured_image":false,"_jetpack_featured_image_duplicate_dismissed":0,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2},"jetpack_post_was_ever_published":false},"categories":[161,130],"tags":[180,190,189,165,78,187,188],"class_list":["post-877","post","type-post","status-publish","format-image","has-post-thumbnail","hentry","category-fisica-nucleare","category-pubblicazioni-scientifiche","tag-experimental-physics","tag-graal-experiment","tag-nuclear-detectors","tag-nuclear-engineering","tag-nuclear-physics","tag-particle-physics","tag-research-project","post_format-post-format-image"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.3 - aioseo.com -->\n\t<meta name=\"description\" content=\"The \u03a3 beam asymmetry in the photoproduction of neutral pions from quasi-free nucleons in a deuteron target was measured for the first time between 0.60 and 1.50GeV, with the GRAAL polarized and tagged photon beam. The asymmetry values from the quasi-free proton were found equal to the ones extracted from a pure proton target. The asymmetries from quasi-free proton and quasi-free neutron were found equal up to 0.82GeV and substantially different at higher energies. The results are compared with recent partial-wave analyses.\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<meta name=\"author\" content=\"Cristian Randieri\"\/>\n\t<meta name=\"google-site-verification\" content=\"dRn6advZnlrm4SqMma43ak51dVzxR6chGYVOyRC4ClU\" \/>\n\t<meta name=\"msvalidate.01\" content=\"74F4813546CEAE7E320FAA10BCCB41D3\" \/>\n\t<meta name=\"p:domain_verify\" content=\"13f33a4a66030de75695ddf8d6ac64b6\" \/>\n\t<meta name=\"keywords\" content=\"experimental physics,graal experiment,nuclear detectors,nuclear engineering,nuclear physics,particle physics,research project,\u03c3 beam asymmetry,\u03c0\u00b0 photoproduction,neutron,resonances,randieri,scientific publications\" \/>\n\t<link rel=\"canonical\" href=\"https:\/\/www.randieri.com\/en\/english-measurement-of-%cf%83-beam-asymmetry-in-%cf%800-photoproduction-off-the-neutron-in-the-second-and-third-resonances-region\/\" \/>\n\t\t<meta name=\"generator\" content=\"All in One SEO (AIOSEO) 5.0.3\" \/>\n\t\t<meta property=\"og:locale\" content=\"en_US\" \/>\n\t\t<meta property=\"og:site_name\" content=\"randieri.com\" \/>\n\t\t<meta property=\"og:type\" content=\"article\" \/>\n\t\t<meta property=\"og:title\" content=\"Measurement of \u03a3 beam asymmetry in \u03c0\u00b0 photoproduction off the neutron in the second and third resonances region\" \/>\n\t\t<meta property=\"og:description\" content=\"The \u03a3 beam asymmetry in the photoproduction of neutral pions from quasi-free nucleons in a deuteron target was measured for the first time between 0.60 and 1.50GeV, with the GRAAL polarized and tagged photon beam. The asymmetry values from the quasi-free proton were found equal to the ones extracted from a pure proton target. The asymmetries from quasi-free proton and quasi-free neutron were found equal up to 0.82GeV and substantially different at higher energies. The results are compared with recent partial-wave analyses.\" \/>\n\t\t<meta property=\"og:url\" content=\"https:\/\/www.randieri.com\/en\/english-measurement-of-%cf%83-beam-asymmetry-in-%cf%800-photoproduction-off-the-neutron-in-the-second-and-third-resonances-region\/\" \/>\n\t\t<meta property=\"fb:app_id\" content=\"100009340067462\" \/>\n\t\t<meta property=\"fb:admins\" content=\"100009340067462\" \/>\n\t\t<meta property=\"og:image\" content=\"https:\/\/www.intellisystem.it\/Intellisystem\/wp-content\/uploads\/Loghi%20Pubblicazioni\/European-Physical-Journal-A-300x121.jpg\" \/>\n\t\t<meta property=\"og:image:secure_url\" content=\"https:\/\/www.intellisystem.it\/Intellisystem\/wp-content\/uploads\/Loghi%20Pubblicazioni\/European-Physical-Journal-A-300x121.jpg\" \/>\n\t\t<meta property=\"article:tag\" content=\"experimental physics\" \/>\n\t\t<meta property=\"article:tag\" content=\"graal experiment\" \/>\n\t\t<meta property=\"article:tag\" content=\"nuclear detectors\" \/>\n\t\t<meta property=\"article:tag\" content=\"nuclear engineering\" \/>\n\t\t<meta property=\"article:tag\" content=\"nuclear physics\" \/>\n\t\t<meta property=\"article:tag\" content=\"particle physics\" \/>\n\t\t<meta property=\"article:tag\" content=\"research project\" \/>\n\t\t<meta property=\"article:tag\" content=\"\u03c3 beam asymmetry\" \/>\n\t\t<meta property=\"article:tag\" content=\"\u03c0\u00b0 photoproduction\" \/>\n\t\t<meta property=\"article:tag\" content=\"neutron\" \/>\n\t\t<meta property=\"article:tag\" content=\"resonances\" \/>\n\t\t<meta property=\"article:tag\" content=\"randieri\" \/>\n\t\t<meta property=\"article:tag\" content=\"scientific publications\" \/>\n\t\t<meta property=\"article:published_time\" content=\"2009-11-10T14:20:35+00:00\" \/>\n\t\t<meta property=\"article:modified_time\" content=\"2018-03-09T10:58:20+00:00\" \/>\n\t\t<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/crandieri\" \/>\n\t\t<meta name=\"twitter:card\" content=\"summary\" \/>\n\t\t<meta name=\"twitter:site\" content=\"@C_Randieri\" \/>\n\t\t<meta name=\"twitter:title\" content=\"Measurement of \u03a3 beam asymmetry in \u03c0\u00b0 photoproduction off the neutron in the second and third resonances region\" \/>\n\t\t<meta name=\"twitter:description\" content=\"The \u03a3 beam asymmetry in the photoproduction of neutral pions from quasi-free nucleons in a deuteron target was measured for the first time between 0.60 and 1.50GeV, with the GRAAL polarized and tagged photon beam. The asymmetry values from the quasi-free proton were found equal to the ones extracted from a pure proton target. The asymmetries from quasi-free proton and quasi-free neutron were found equal up to 0.82GeV and substantially different at higher energies. The results are compared with recent partial-wave analyses.\" \/>\n\t\t<meta name=\"twitter:creator\" content=\"@C_Randieri\" \/>\n\t\t<meta name=\"twitter:image\" content=\"http:\/\/www.intellisystem.it\/Intellisystem\/wp-content\/uploads\/Loghi Pubblicazioni\/European-Physical-Journal-A-300x121.jpg\" \/>\n\t\t<script type=\"application\/ld+json\" class=\"aioseo-schema\">\n\t\t\t{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.randieri.com\\\/en\\\/english-measurement-of-%cf%83-beam-asymmetry-in-%cf%800-photoproduction-off-the-neutron-in-the-second-and-third-resonances-region\\\/#article\",\"name\":\"Measurement of \\u03a3 beam asymmetry in \\u03c0\\u00b0 photoproduction off the neutron in the second and third resonances region\",\"headline\":\"Measurement of \\u03a3 beam asymmetry in \\u03c0\\u00b0 photoproduction off the neutron in the second and third resonances region\",\"author\":{\"@id\":\"https:\\\/\\\/www.randieri.com\\\/en\\\/author\\\/randieri\\\/#author\"},\"publisher\":{\"@id\":\"https:\\\/\\\/www.randieri.com\\\/en\\\/#person\"},\"image\":{\"@type\":\"ImageObject\",\"url\":\"https:\\\/\\\/i0.wp.com\\\/www.randieri.com\\\/randieri\\\/wp-content\\\/uploads\\\/Immagini_Pubblicazioni_Scientifiche\\\/Measurement-of-beam-asymmetry-in-photoproduction-off-the-neutron-in-the-second-and-third-resonances-region.jpg?fit=2048%2C1172&ssl=1\",\"width\":2048,\"height\":1172,\"caption\":\"Measurement of \\u03a3 beam asymmetry in \\u03c0\\u00b0 photoproduction off the neutron in the second and third resonances region - Randieri\"},\"datePublished\":\"2009-11-10T15:20:35+01:00\",\"dateModified\":\"2018-03-09T11:58:20+01:00\",\"inLanguage\":\"en-US\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/www.randieri.com\\\/en\\\/english-measurement-of-%cf%83-beam-asymmetry-in-%cf%800-photoproduction-off-the-neutron-in-the-second-and-third-resonances-region\\\/#webpage\"},\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.randieri.com\\\/en\\\/english-measurement-of-%cf%83-beam-asymmetry-in-%cf%800-photoproduction-off-the-neutron-in-the-second-and-third-resonances-region\\\/#webpage\"},\"articleSection\":\"Nuclear Physics, Scientific Publications, Experimental Physics, graal experiment, nuclear detectors, Nuclear engineering, nuclear physics, particle physics, research project, Image\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/www.randieri.com\\\/en\\\/english-measurement-of-%cf%83-beam-asymmetry-in-%cf%800-photoproduction-off-the-neutron-in-the-second-and-third-resonances-region\\\/#breadcrumblist\",\"itemListElement\":[{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/www.randieri.com\\\/en\\\/#listItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/www.randieri.com\\\/en\\\/\",\"nextItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/www.randieri.com\\\/en\\\/category\\\/pubblicazioni-scientifiche\\\/#listItem\",\"name\":\"Scientific Publications\"}},{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/www.randieri.com\\\/en\\\/category\\\/pubblicazioni-scientifiche\\\/#listItem\",\"position\":2,\"name\":\"Scientific Publications\",\"item\":\"https:\\\/\\\/www.randieri.com\\\/en\\\/category\\\/pubblicazioni-scientifiche\\\/\",\"nextItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/www.randieri.com\\\/en\\\/category\\\/pubblicazioni-scientifiche\\\/fisica-nucleare\\\/#listItem\",\"name\":\"Nuclear Physics\"},\"previousItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/www.randieri.com\\\/en\\\/#listItem\",\"name\":\"Home\"}},{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/www.randieri.com\\\/en\\\/category\\\/pubblicazioni-scientifiche\\\/fisica-nucleare\\\/#listItem\",\"position\":3,\"name\":\"Nuclear Physics\",\"item\":\"https:\\\/\\\/www.randieri.com\\\/en\\\/category\\\/pubblicazioni-scientifiche\\\/fisica-nucleare\\\/\",\"nextItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/www.randieri.com\\\/en\\\/english-measurement-of-%cf%83-beam-asymmetry-in-%cf%800-photoproduction-off-the-neutron-in-the-second-and-third-resonances-region\\\/#listItem\",\"name\":\"Measurement of \\u03a3 beam asymmetry in \\u03c0\\u00b0 photoproduction off the neutron in the second and third resonances region\"},\"previousItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/www.randieri.com\\\/en\\\/category\\\/pubblicazioni-scientifiche\\\/#listItem\",\"name\":\"Scientific Publications\"}},{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/www.randieri.com\\\/en\\\/english-measurement-of-%cf%83-beam-asymmetry-in-%cf%800-photoproduction-off-the-neutron-in-the-second-and-third-resonances-region\\\/#listItem\",\"position\":4,\"name\":\"Measurement of \\u03a3 beam asymmetry in \\u03c0\\u00b0 photoproduction off the neutron in the second and third resonances region\",\"previousItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/www.randieri.com\\\/en\\\/category\\\/pubblicazioni-scientifiche\\\/fisica-nucleare\\\/#listItem\",\"name\":\"Nuclear Physics\"}}]},{\"@type\":\"Person\",\"@id\":\"https:\\\/\\\/www.randieri.com\\\/en\\\/#person\",\"name\":\"Cristian Randieri\",\"image\":{\"@type\":\"ImageObject\",\"@id\":\"https:\\\/\\\/www.randieri.com\\\/en\\\/english-measurement-of-%cf%83-beam-asymmetry-in-%cf%800-photoproduction-off-the-neutron-in-the-second-and-third-resonances-region\\\/#personImage\",\"url\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/92f502d086acd47a6a96d800cfae001aaf33cea70bfcc572221951fc95771ae9?s=96&d=mm&r=g\",\"width\":96,\"height\":96,\"caption\":\"Cristian Randieri\"}},{\"@type\":\"Person\",\"@id\":\"https:\\\/\\\/www.randieri.com\\\/en\\\/author\\\/randieri\\\/#author\",\"url\":\"https:\\\/\\\/www.randieri.com\\\/en\\\/author\\\/randieri\\\/\",\"name\":\"Cristian Randieri\",\"image\":{\"@type\":\"ImageObject\",\"@id\":\"https:\\\/\\\/www.randieri.com\\\/en\\\/english-measurement-of-%cf%83-beam-asymmetry-in-%cf%800-photoproduction-off-the-neutron-in-the-second-and-third-resonances-region\\\/#authorImage\",\"url\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/92f502d086acd47a6a96d800cfae001aaf33cea70bfcc572221951fc95771ae9?s=96&d=mm&r=g\",\"width\":96,\"height\":96,\"caption\":\"Cristian Randieri\"}},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.randieri.com\\\/en\\\/english-measurement-of-%cf%83-beam-asymmetry-in-%cf%800-photoproduction-off-the-neutron-in-the-second-and-third-resonances-region\\\/#webpage\",\"url\":\"https:\\\/\\\/www.randieri.com\\\/en\\\/english-measurement-of-%cf%83-beam-asymmetry-in-%cf%800-photoproduction-off-the-neutron-in-the-second-and-third-resonances-region\\\/\",\"name\":\"Measurement of \\u03a3 beam asymmetry in \\u03c0\\u00b0 photoproduction off the neutron in the second and third resonances region\",\"description\":\"The \\u03a3 beam asymmetry in the photoproduction of neutral pions from quasi-free nucleons in a deuteron target was measured for the first time between 0.60 and 1.50GeV, with the GRAAL polarized and tagged photon beam. The asymmetry values from the quasi-free proton were found equal to the ones extracted from a pure proton target. The asymmetries from quasi-free proton and quasi-free neutron were found equal up to 0.82GeV and substantially different at higher energies. The results are compared with recent partial-wave analyses.\",\"inLanguage\":\"en-US\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.randieri.com\\\/en\\\/#website\"},\"breadcrumb\":{\"@id\":\"https:\\\/\\\/www.randieri.com\\\/en\\\/english-measurement-of-%cf%83-beam-asymmetry-in-%cf%800-photoproduction-off-the-neutron-in-the-second-and-third-resonances-region\\\/#breadcrumblist\"},\"author\":{\"@id\":\"https:\\\/\\\/www.randieri.com\\\/en\\\/author\\\/randieri\\\/#author\"},\"creator\":{\"@id\":\"https:\\\/\\\/www.randieri.com\\\/en\\\/author\\\/randieri\\\/#author\"},\"image\":{\"@type\":\"ImageObject\",\"url\":\"https:\\\/\\\/i0.wp.com\\\/www.randieri.com\\\/randieri\\\/wp-content\\\/uploads\\\/Immagini_Pubblicazioni_Scientifiche\\\/Measurement-of-beam-asymmetry-in-photoproduction-off-the-neutron-in-the-second-and-third-resonances-region.jpg?fit=2048%2C1172&ssl=1\",\"@id\":\"https:\\\/\\\/www.randieri.com\\\/en\\\/english-measurement-of-%cf%83-beam-asymmetry-in-%cf%800-photoproduction-off-the-neutron-in-the-second-and-third-resonances-region\\\/#mainImage\",\"width\":2048,\"height\":1172,\"caption\":\"Measurement of \\u03a3 beam asymmetry in \\u03c0\\u00b0 photoproduction off the neutron in the second and third resonances region - Randieri\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/www.randieri.com\\\/en\\\/english-measurement-of-%cf%83-beam-asymmetry-in-%cf%800-photoproduction-off-the-neutron-in-the-second-and-third-resonances-region\\\/#mainImage\"},\"datePublished\":\"2009-11-10T15:20:35+01:00\",\"dateModified\":\"2018-03-09T11:58:20+01:00\"},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/www.randieri.com\\\/en\\\/#website\",\"url\":\"https:\\\/\\\/www.randieri.com\\\/en\\\/\",\"name\":\"randieri.com\",\"description\":\"Il blog di Cristian Randieri\",\"inLanguage\":\"en-US\",\"publisher\":{\"@id\":\"https:\\\/\\\/www.randieri.com\\\/en\\\/#person\"}}]}\n\t\t<\/script>\n\t\t<!-- All in One SEO -->\n\n","aioseo_head_json":{"title":"Measurement of \u03a3 beam asymmetry in \u03c0\u00b0 photoproduction off the neutron in the second and third resonances region","description":"The \u03a3 beam asymmetry in the photoproduction of neutral pions from quasi-free nucleons in a deuteron target was measured for the first time between 0.60 and 1.50GeV, with the GRAAL polarized and tagged photon beam. The asymmetry values from the quasi-free proton were found equal to the ones extracted from a pure proton target. The asymmetries from quasi-free proton and quasi-free neutron were found equal up to 0.82GeV and substantially different at higher energies. The results are compared with recent partial-wave analyses.","canonical_url":"https:\/\/www.randieri.com\/en\/english-measurement-of-%cf%83-beam-asymmetry-in-%cf%800-photoproduction-off-the-neutron-in-the-second-and-third-resonances-region\/","robots":"max-image-preview:large","keywords":"experimental physics,graal experiment,nuclear detectors,nuclear engineering,nuclear physics,particle physics,research project,\u03c3 beam asymmetry,\u03c0\u00b0 photoproduction,neutron,resonances,randieri,scientific publications","webmasterTools":{"google-site-verification":"dRn6advZnlrm4SqMma43ak51dVzxR6chGYVOyRC4ClU","msvalidate.01":"74F4813546CEAE7E320FAA10BCCB41D3","p:domain_verify":"13f33a4a66030de75695ddf8d6ac64b6","miscellaneous":""},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/www.randieri.com\/en\/english-measurement-of-%cf%83-beam-asymmetry-in-%cf%800-photoproduction-off-the-neutron-in-the-second-and-third-resonances-region\/#article","name":"Measurement of \u03a3 beam asymmetry in \u03c0\u00b0 photoproduction off the neutron in the second and third resonances region","headline":"Measurement of \u03a3 beam asymmetry in \u03c0\u00b0 photoproduction off the neutron in the second and third resonances region","author":{"@id":"https:\/\/www.randieri.com\/en\/author\/randieri\/#author"},"publisher":{"@id":"https:\/\/www.randieri.com\/en\/#person"},"image":{"@type":"ImageObject","url":"https:\/\/i0.wp.com\/www.randieri.com\/randieri\/wp-content\/uploads\/Immagini_Pubblicazioni_Scientifiche\/Measurement-of-beam-asymmetry-in-photoproduction-off-the-neutron-in-the-second-and-third-resonances-region.jpg?fit=2048%2C1172&ssl=1","width":2048,"height":1172,"caption":"Measurement of \u03a3 beam asymmetry in \u03c0\u00b0 photoproduction off the neutron in the second and third resonances region - Randieri"},"datePublished":"2009-11-10T15:20:35+01:00","dateModified":"2018-03-09T11:58:20+01:00","inLanguage":"en-US","mainEntityOfPage":{"@id":"https:\/\/www.randieri.com\/en\/english-measurement-of-%cf%83-beam-asymmetry-in-%cf%800-photoproduction-off-the-neutron-in-the-second-and-third-resonances-region\/#webpage"},"isPartOf":{"@id":"https:\/\/www.randieri.com\/en\/english-measurement-of-%cf%83-beam-asymmetry-in-%cf%800-photoproduction-off-the-neutron-in-the-second-and-third-resonances-region\/#webpage"},"articleSection":"Nuclear Physics, Scientific Publications, Experimental Physics, graal experiment, nuclear detectors, Nuclear engineering, nuclear physics, particle physics, research project, Image"},{"@type":"BreadcrumbList","@id":"https:\/\/www.randieri.com\/en\/english-measurement-of-%cf%83-beam-asymmetry-in-%cf%800-photoproduction-off-the-neutron-in-the-second-and-third-resonances-region\/#breadcrumblist","itemListElement":[{"@type":"ListItem","@id":"https:\/\/www.randieri.com\/en\/#listItem","position":1,"name":"Home","item":"https:\/\/www.randieri.com\/en\/","nextItem":{"@type":"ListItem","@id":"https:\/\/www.randieri.com\/en\/category\/pubblicazioni-scientifiche\/#listItem","name":"Scientific Publications"}},{"@type":"ListItem","@id":"https:\/\/www.randieri.com\/en\/category\/pubblicazioni-scientifiche\/#listItem","position":2,"name":"Scientific Publications","item":"https:\/\/www.randieri.com\/en\/category\/pubblicazioni-scientifiche\/","nextItem":{"@type":"ListItem","@id":"https:\/\/www.randieri.com\/en\/category\/pubblicazioni-scientifiche\/fisica-nucleare\/#listItem","name":"Nuclear Physics"},"previousItem":{"@type":"ListItem","@id":"https:\/\/www.randieri.com\/en\/#listItem","name":"Home"}},{"@type":"ListItem","@id":"https:\/\/www.randieri.com\/en\/category\/pubblicazioni-scientifiche\/fisica-nucleare\/#listItem","position":3,"name":"Nuclear Physics","item":"https:\/\/www.randieri.com\/en\/category\/pubblicazioni-scientifiche\/fisica-nucleare\/","nextItem":{"@type":"ListItem","@id":"https:\/\/www.randieri.com\/en\/english-measurement-of-%cf%83-beam-asymmetry-in-%cf%800-photoproduction-off-the-neutron-in-the-second-and-third-resonances-region\/#listItem","name":"Measurement of \u03a3 beam asymmetry in \u03c0\u00b0 photoproduction off the neutron in the second and third resonances region"},"previousItem":{"@type":"ListItem","@id":"https:\/\/www.randieri.com\/en\/category\/pubblicazioni-scientifiche\/#listItem","name":"Scientific Publications"}},{"@type":"ListItem","@id":"https:\/\/www.randieri.com\/en\/english-measurement-of-%cf%83-beam-asymmetry-in-%cf%800-photoproduction-off-the-neutron-in-the-second-and-third-resonances-region\/#listItem","position":4,"name":"Measurement of \u03a3 beam asymmetry in \u03c0\u00b0 photoproduction off the neutron in the second and third resonances region","previousItem":{"@type":"ListItem","@id":"https:\/\/www.randieri.com\/en\/category\/pubblicazioni-scientifiche\/fisica-nucleare\/#listItem","name":"Nuclear Physics"}}]},{"@type":"Person","@id":"https:\/\/www.randieri.com\/en\/#person","name":"Cristian Randieri","image":{"@type":"ImageObject","@id":"https:\/\/www.randieri.com\/en\/english-measurement-of-%cf%83-beam-asymmetry-in-%cf%800-photoproduction-off-the-neutron-in-the-second-and-third-resonances-region\/#personImage","url":"https:\/\/secure.gravatar.com\/avatar\/92f502d086acd47a6a96d800cfae001aaf33cea70bfcc572221951fc95771ae9?s=96&d=mm&r=g","width":96,"height":96,"caption":"Cristian Randieri"}},{"@type":"Person","@id":"https:\/\/www.randieri.com\/en\/author\/randieri\/#author","url":"https:\/\/www.randieri.com\/en\/author\/randieri\/","name":"Cristian Randieri","image":{"@type":"ImageObject","@id":"https:\/\/www.randieri.com\/en\/english-measurement-of-%cf%83-beam-asymmetry-in-%cf%800-photoproduction-off-the-neutron-in-the-second-and-third-resonances-region\/#authorImage","url":"https:\/\/secure.gravatar.com\/avatar\/92f502d086acd47a6a96d800cfae001aaf33cea70bfcc572221951fc95771ae9?s=96&d=mm&r=g","width":96,"height":96,"caption":"Cristian Randieri"}},{"@type":"WebPage","@id":"https:\/\/www.randieri.com\/en\/english-measurement-of-%cf%83-beam-asymmetry-in-%cf%800-photoproduction-off-the-neutron-in-the-second-and-third-resonances-region\/#webpage","url":"https:\/\/www.randieri.com\/en\/english-measurement-of-%cf%83-beam-asymmetry-in-%cf%800-photoproduction-off-the-neutron-in-the-second-and-third-resonances-region\/","name":"Measurement of \u03a3 beam asymmetry in \u03c0\u00b0 photoproduction off the neutron in the second and third resonances region","description":"The \u03a3 beam asymmetry in the photoproduction of neutral pions from quasi-free nucleons in a deuteron target was measured for the first time between 0.60 and 1.50GeV, with the GRAAL polarized and tagged photon beam. The asymmetry values from the quasi-free proton were found equal to the ones extracted from a pure proton target. The asymmetries from quasi-free proton and quasi-free neutron were found equal up to 0.82GeV and substantially different at higher energies. The results are compared with recent partial-wave analyses.","inLanguage":"en-US","isPartOf":{"@id":"https:\/\/www.randieri.com\/en\/#website"},"breadcrumb":{"@id":"https:\/\/www.randieri.com\/en\/english-measurement-of-%cf%83-beam-asymmetry-in-%cf%800-photoproduction-off-the-neutron-in-the-second-and-third-resonances-region\/#breadcrumblist"},"author":{"@id":"https:\/\/www.randieri.com\/en\/author\/randieri\/#author"},"creator":{"@id":"https:\/\/www.randieri.com\/en\/author\/randieri\/#author"},"image":{"@type":"ImageObject","url":"https:\/\/i0.wp.com\/www.randieri.com\/randieri\/wp-content\/uploads\/Immagini_Pubblicazioni_Scientifiche\/Measurement-of-beam-asymmetry-in-photoproduction-off-the-neutron-in-the-second-and-third-resonances-region.jpg?fit=2048%2C1172&ssl=1","@id":"https:\/\/www.randieri.com\/en\/english-measurement-of-%cf%83-beam-asymmetry-in-%cf%800-photoproduction-off-the-neutron-in-the-second-and-third-resonances-region\/#mainImage","width":2048,"height":1172,"caption":"Measurement of \u03a3 beam asymmetry in \u03c0\u00b0 photoproduction off the neutron in the second and third resonances region - Randieri"},"primaryImageOfPage":{"@id":"https:\/\/www.randieri.com\/en\/english-measurement-of-%cf%83-beam-asymmetry-in-%cf%800-photoproduction-off-the-neutron-in-the-second-and-third-resonances-region\/#mainImage"},"datePublished":"2009-11-10T15:20:35+01:00","dateModified":"2018-03-09T11:58:20+01:00"},{"@type":"WebSite","@id":"https:\/\/www.randieri.com\/en\/#website","url":"https:\/\/www.randieri.com\/en\/","name":"randieri.com","description":"Il blog di Cristian Randieri","inLanguage":"en-US","publisher":{"@id":"https:\/\/www.randieri.com\/en\/#person"}}]},"og:locale":"en_US","og:site_name":"randieri.com","og:type":"article","og:title":"Measurement of \u03a3 beam asymmetry in \u03c0\u00b0 photoproduction off the neutron in the second and third resonances region","og:description":"The \u03a3 beam asymmetry in the photoproduction of neutral pions from quasi-free nucleons in a deuteron target was measured for the first time between 0.60 and 1.50GeV, with the GRAAL polarized and tagged photon beam. The asymmetry values from the quasi-free proton were found equal to the ones extracted from a pure proton target. The asymmetries from quasi-free proton and quasi-free neutron were found equal up to 0.82GeV and substantially different at higher energies. The results are compared with recent partial-wave analyses.","og:url":"https:\/\/www.randieri.com\/en\/english-measurement-of-%cf%83-beam-asymmetry-in-%cf%800-photoproduction-off-the-neutron-in-the-second-and-third-resonances-region\/","fb:app_id":"100009340067462","fb:admins":"100009340067462","og:image":"https:\/\/www.intellisystem.it\/Intellisystem\/wp-content\/uploads\/Loghi%20Pubblicazioni\/European-Physical-Journal-A-300x121.jpg","og:image:secure_url":"https:\/\/www.intellisystem.it\/Intellisystem\/wp-content\/uploads\/Loghi%20Pubblicazioni\/European-Physical-Journal-A-300x121.jpg","article:tag":["experimental physics","graal experiment","nuclear detectors","nuclear engineering","nuclear physics","particle physics","research project","\u03c3 beam asymmetry","\u03c0\u00b0 photoproduction","neutron","resonances","randieri","scientific publications"],"article:published_time":"2009-11-10T14:20:35+00:00","article:modified_time":"2018-03-09T10:58:20+00:00","article:publisher":"https:\/\/www.facebook.com\/crandieri","twitter:card":"summary","twitter:site":"@C_Randieri","twitter:title":"Measurement of \u03a3 beam asymmetry in \u03c0\u00b0 photoproduction off the neutron in the second and third resonances region","twitter:description":"The \u03a3 beam asymmetry in the photoproduction of neutral pions from quasi-free nucleons in a deuteron target was measured for the first time between 0.60 and 1.50GeV, with the GRAAL polarized and tagged photon beam. The asymmetry values from the quasi-free proton were found equal to the ones extracted from a pure proton target. The asymmetries from quasi-free proton and quasi-free neutron were found equal up to 0.82GeV and substantially different at higher energies. The results are compared with recent partial-wave analyses.","twitter:creator":"@C_Randieri","twitter:image":"http:\/\/www.intellisystem.it\/Intellisystem\/wp-content\/uploads\/Loghi Pubblicazioni\/European-Physical-Journal-A-300x121.jpg"},"aioseo_meta_data":{"post_id":"877","title":"Measurement of \u03a3 beam asymmetry in \u03c0\u00b0 photoproduction off the neutron in the second and third resonances region","description":"The \u03a3 beam asymmetry in the photoproduction of neutral pions from quasi-free nucleons in a deuteron target was measured for the first time between 0.60 and 1.50GeV, with the GRAAL polarized and tagged photon beam. The asymmetry values from the quasi-free proton were found equal to the ones extracted from a pure proton target. The asymmetries from quasi-free proton and quasi-free neutron were found equal up to 0.82GeV and substantially different at higher energies. The results are compared with recent partial-wave analyses.","keywords":[{"label":"Experimental Physics","value":"Experimental Physics"},{"label":"graal experiment","value":"graal experiment"},{"label":"nuclear detectors","value":"nuclear detectors"},{"label":"Nuclear engineering","value":"Nuclear engineering"},{"label":"nuclear physics","value":"nuclear physics"},{"label":"particle physics","value":"particle physics"},{"label":"research project","value":"research project"},{"label":"\u03a3 beam asymmetry","value":"\u03a3 beam asymmetry"},{"label":"\u03c0\u00b0 photoproduction","value":"\u03c0\u00b0 photoproduction"},{"label":"Neutron","value":"Neutron"},{"label":"Resonances","value":"Resonances"},{"label":"Randieri","value":"Randieri"}],"keyphrases":null,"primary_term":null,"canonical_url":null,"og_title":"","og_description":"","og_object_type":"article","og_image_type":"default","og_image_url":null,"og_image_width":null,"og_image_height":null,"og_image_custom_url":null,"og_image_custom_fields":null,"og_video":"","og_custom_url":null,"og_article_section":"","og_article_tags":"","twitter_use_og":false,"twitter_card":"summary","twitter_image_type":"default","twitter_image_url":null,"twitter_image_custom_url":null,"twitter_image_custom_fields":null,"twitter_title":null,"twitter_description":null,"schema":{"blockGraphs":[],"customGraphs":[],"default":{"data":{"Article":[],"Course":[],"Dataset":[],"FAQPage":[],"Movie":[],"Person":[],"Product":[],"ProductReview":[],"Car":[],"Recipe":[],"Service":[],"SoftwareApplication":[],"WebPage":[]},"graphName":"","isEnabled":true},"graphs":[],"defaultGraph":"","defaultPostTypeGraph":""},"schema_type":null,"schema_type_options":null,"pillar_content":false,"robots_default":true,"robots_noindex":false,"robots_noarchive":false,"robots_nosnippet":false,"robots_nofollow":false,"robots_noimageindex":false,"robots_noodp":false,"robots_notranslate":false,"robots_max_snippet":null,"robots_max_videopreview":null,"robots_max_imagepreview":"large","priority":null,"frequency":null,"location":null,"local_seo":null,"breadcrumb_settings":null,"limit_modified_date":false,"open_ai":null,"ai":null,"created":"2021-02-10 16:02:01","updated":"2025-07-21 15:10:36","seo_analyzer_scan_date":null,"focus_keyword":null,"additional_keywords":null,"truseo_locale":null},"aioseo_breadcrumb":"<div class=\"aioseo-breadcrumbs\"><span class=\"aioseo-breadcrumb\">\n\t\t\t<a href=\"https:\/\/www.randieri.com\/en\/\" title=\"Home\">Home<\/a>\n\t\t<\/span><span class=\"aioseo-breadcrumb-separator\">\u00bb<\/span><span class=\"aioseo-breadcrumb\">\n\t\t\t<a href=\"https:\/\/www.randieri.com\/en\/category\/pubblicazioni-scientifiche\/\" title=\"Scientific Publications\">Scientific Publications<\/a>\n\t\t<\/span><span class=\"aioseo-breadcrumb-separator\">\u00bb<\/span><span class=\"aioseo-breadcrumb\">\n\t\t\t<a href=\"https:\/\/www.randieri.com\/en\/category\/pubblicazioni-scientifiche\/fisica-nucleare\/\" title=\"Nuclear Physics\">Nuclear Physics<\/a>\n\t\t<\/span><span class=\"aioseo-breadcrumb-separator\">\u00bb<\/span><span class=\"aioseo-breadcrumb\">\n\t\t\tMeasurement of \u03a3 beam asymmetry in \u03c0\u00b0 photoproduction off the neutron in the second and third resonances region\n\t\t<\/span><\/div>","aioseo_breadcrumb_json":[{"label":"Home","link":"https:\/\/www.randieri.com\/en\/"},{"label":"Scientific Publications","link":"https:\/\/www.randieri.com\/en\/category\/pubblicazioni-scientifiche\/"},{"label":"Nuclear Physics","link":"https:\/\/www.randieri.com\/en\/category\/pubblicazioni-scientifiche\/fisica-nucleare\/"},{"label":"Measurement of \u03a3 beam asymmetry in \u03c0\u00b0 photoproduction off the neutron in the second and third resonances region","link":"https:\/\/www.randieri.com\/en\/english-measurement-of-%cf%83-beam-asymmetry-in-%cf%800-photoproduction-off-the-neutron-in-the-second-and-third-resonances-region\/"}],"jetpack_publicize_connections":[],"jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p76XAz-e9","jetpack_likes_enabled":true,"amp_enabled":true,"jetpack_featured_media_url":"https:\/\/i0.wp.com\/www.randieri.com\/randieri\/wp-content\/uploads\/Immagini_Pubblicazioni_Scientifiche\/Measurement-of-beam-asymmetry-in-photoproduction-off-the-neutron-in-the-second-and-third-resonances-region.jpg?fit=2048%2C1172&ssl=1","_links":{"self":[{"href":"https:\/\/www.randieri.com\/en\/wp-json\/wp\/v2\/posts\/877","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.randieri.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.randieri.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.randieri.com\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.randieri.com\/en\/wp-json\/wp\/v2\/comments?post=877"}],"version-history":[{"count":4,"href":"https:\/\/www.randieri.com\/en\/wp-json\/wp\/v2\/posts\/877\/revisions"}],"predecessor-version":[{"id":2775,"href":"https:\/\/www.randieri.com\/en\/wp-json\/wp\/v2\/posts\/877\/revisions\/2775"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.randieri.com\/en\/wp-json\/wp\/v2\/media\/1911"}],"wp:attachment":[{"href":"https:\/\/www.randieri.com\/en\/wp-json\/wp\/v2\/media?parent=877"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.randieri.com\/en\/wp-json\/wp\/v2\/categories?post=877"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.randieri.com\/en\/wp-json\/wp\/v2\/tags?post=877"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}