{"id":869,"date":"2008-02-04T10:00:14","date_gmt":"2008-02-04T09:00:14","guid":{"rendered":"http:\/\/www.randieri.com\/?post_type=jetpack-portfolio&p=869"},"modified":"2018-03-09T11:53:39","modified_gmt":"2018-03-09T10:53:39","slug":"english-simultaneous-photoproduction-of-%ce%b7-and-%cf%800-mesons-on-the-proton","status":"publish","type":"post","link":"https:\/\/www.randieri.com\/en\/english-simultaneous-photoproduction-of-%ce%b7-and-%cf%800-mesons-on-the-proton\/","title":{"rendered":"Simultaneous photoproduction of \u03b7 and \u03c0\u00b0 Mesons on the Proton"},"content":{"rendered":"

<\/p>\n

The analysis of the \u03b3p\u2192\u03b7\u03c00<\/sup>p reaction has been performed using data from the GRAAL experiment. The total and differential cross sections and the beam asymmetry have been obtained from threshold up to 1.5 GeV of beam energy. \u00a0The two resonances S11<\/sub>(1535) and \u0394(1700) are expected to be excited in the intermediate states of this reaction. The results are used to test predictions based on the assumption that both resonances are dynamically generated from the meson-baryon interaction provided by chiral Lagrangians. The term involving the \u0394(1700) excitation, followed by the decay into \u03b7\u0394(1232), is found to be dominant.<\/p>\n

<\/div><\/p>\n

\n

_______<\/p>\n

J. Ajaka, Y. Assafiri, O. Bartalini, V. Bellini, S. Bouchigny, M. Castoldi, A. D’Angelo, J. P. Didelez, R. Di Salvo, M. Doring, A. Fantini, L. Fichen, G. Gervino, F. Ghio, B. Girolami, A. Giusa, M. Guidal, E. Hourany, R. Kunne, A. M. Lapik, P. Levi Sandri, D. Moricciani, A. N. Mushkarenkov, V. Nedorezov, E. Oset, C. Randieri<\/strong>, N. Rudnev, G. Russo, C. Schaerf, M. L. Sperduto, M. C. Sutera, A. Turinge (2008).<\/p>\n

Physical Review Letters<\/em> – February 2008, Vol. 100, Issue 5, pp. 052003-1-052003-5, ISSN: 0031-9007, doi: 10.1103\/PhysRevLett.100.052003.<\/strong><\/p>\n

________<\/p>\n

\"American<\/p>\n

The American Physical Society was founded on May 20th, 1899, when 36 physicists gathered at Columbia University with that aim. They proclaimed the mission of the new Society to be “to advance and diffuse the knowledge of physics\u201d. This has since been the goal of the APS through scientific meetings and journal publication, as well as other activities.\u00a0In 1913, the APS took over the operation of the\u00a0Physical Review, which had been founded in 1893 at Cornell, and journal publication became its second major activity.<\/em><\/p>\n

<\/div><\/em><\/p>\n

\"Physical<\/em><\/p>\n

Physical Review\u00a0was followed by\u00a0Reviews of Modern Physics\u00a0in 1929, and by\u00a0Physical Review Letters<\/strong>\u00a0in 1958 (when the then Editor, Sam Goudsmit, decided to collect the Letters to the Editor of\u00a0Physical Review\u00a0into a new standalone journal). Physical Review Letters\u00a0(PRL) is the world\u2019s premier physics letter journal; it publishes short, high quality reports of significant and notable results in the full arc of fundamental and interdisciplinary physics research. Over the years,\u00a0 has subdivided into five separate sections as the fields of physics have proliferated and the number of submissions grew.<\/em><\/p>\n

<\/p>","protected":false},"excerpt":{"rendered":"

Sorry, this entry is only available in Italiano.<\/p>\n","protected":false},"author":1,"featured_media":1915,"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-869","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\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t