{"id":867,"date":"2007-08-10T17:21:21","date_gmt":"2007-08-10T15:21:21","guid":{"rendered":"http:\/\/www.randieri.com\/?post_type=jetpack-portfolio&#038;p=867"},"modified":"2018-03-09T11:53:24","modified_gmt":"2018-03-09T10:53:24","slug":"english-measurement-of-%ce%b7-photoproduction-on-the-proton-from-threshold-to-1500-mev","status":"publish","type":"post","link":"https:\/\/www.randieri.com\/en\/english-measurement-of-%ce%b7-photoproduction-on-the-proton-from-threshold-to-1500-mev\/","title":{"rendered":"Measurement of \u03b7 photoproduction on the proton from threshold to 1500-MeV"},"content":{"rendered":"<p><\/p>\n<p style=\"text-align: justify;\">Beam asymmetry and differential cross section for the reaction \u03b3\u03c1\u00a0were measured from production threshold to 1500 MeV photon laboratory energy.<!--more-->The two dominant neutral decay modes of the \u03b7 meson, \u03b7 -&gt; 2\u03b3 and \u03b7 -&gt; 3\u03c0\u00b0, were analyzed.\u00a0The full set of measurements is in good agreement with previously published results. Our data were compared with three models. They all fit satisfactorily the results but their respective resonance contributions are quite different. The possible photoexcitation of a narrow state N (1670) was investigated and no evidence was found.<\/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 class=\"txt Stile1 Stile1\" style=\"text-align: center;\">________<\/p>\n<p style=\"text-align: justify;\">O. Bartalini, V. Bellini, J. P. Bocquet, P. Calvat, M. Capogni, L. Casano, M. Castoldi, A. D&#8217;Angelo, J. P. Didelez, R. Di Salvo, A. Fantini, D. Franco, C. Gaulard, G. Gervino, F. Ghio, G. Giardina, B. Girolami, A. Giusa, M. Guidal, E. Hourany, R. Kunne, A. Lapik, P. Levi Sandri, A. Lleres, F. Mammoliti, G. Mandaglio, D. Moricciani, A. N. Mushkarenkov, V. Nedorezov, L. Nicoletti, C. Perrin, <strong>C. Randieri<\/strong>, D. Rebreyend, F. Renard, N. Rudnev, T. Russew, G. Russo, C. Schaerf, M. L. Sperduto, M. C. Sutera, A. Turinge, V. Vegna (2007)<\/p>\n<p style=\"text-align: justify;\"><strong><em>The European Physical Journal A, Hadrons and Nuclei &#8211;\u00a0<\/em>August 2007, Vol. 33, Issue 2, pp. 169-184, ISSN: 1434-6001, doi: 10.1140\/epja\/i2007-10439-9.<\/strong><\/p>\n<p style=\"text-align: center;\">________<\/p>\n<p style=\"text-align: justify;\"><em><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=233%2C94\" alt=\"European Physical Journal A\" width=\"233\" height=\"94\" \/>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<p><\/p>","protected":false},"excerpt":{"rendered":"<p>Sorry, this entry is only available in Italiano.<\/p>\n","protected":false},"author":1,"featured_media":1835,"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-867","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=\"Beam asymmetry and differential cross section for the reaction gamma+p-&gt;eta+p were measured from production threshold to 1500 MeV photon laboratory energy. The two dominant neutral decay modes of the eta meson, eta-&gt;2g and eta-&gt;3pi0, were analyzed. The full set of measurements is in good agreement with previously published results. Our data were compared with three models. They all fit satisfactorily the results but their respective resonance contributions are quite different. The possible photoexcitation of a narrow state N(1670) was investigated and no evidence was found.\" \/>\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,measurement,\u03b7 photoproduction,proton,threshold,1500-mev,randieri,scientific publications\" \/>\n\t<link rel=\"canonical\" href=\"https:\/\/www.randieri.com\/en\/english-measurement-of-%ce%b7-photoproduction-on-the-proton-from-threshold-to-1500-mev\/\" \/>\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 \u03b7 photoproduction on the proton from threshold to 1500-MeV\" \/>\n\t\t<meta property=\"og:description\" content=\"Beam asymmetry and differential cross section for the reaction gamma+p-&gt;eta+p were measured from production threshold to 1500 MeV photon laboratory energy. 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