Meson photoproduction on the nucleon with polarized photons

A D’angelo ,P Calvat,M Guidal,V Kouznetsov,B Girolami,J P Bocquet,R Di Salvo,A Giusa,T Russew,G Gervino,O Bartalini,L Casano,P Levi Sandri,M Castoldi,C Schaerf,D Rebreyend,C Randieri,R Kunne,G Giardina,F Mammoliti,A Fantini,D Franco,D Moricciani,A Turinge,F Ghio,V Vegna,E Hourani,M C Sutera ,A Llères ,A Mushkarenkov ,M Capogni ,N Rudnev ,Vincenzo Bellini ,A Lapik ,F Renard ,G Mandaglio ,V Nedorezov ,G Russo ,L Nicoletti ,J P Didélez ,M L Sperduto

doi:10.1007/978-3-540-72516-9_12

Meson photoproduction on the nucleon with polarized photons

A D’angelo , P Calvat + Show 39 more

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https://doi.org/10.1007/978-3-540-72516-9_12

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Publication Date: Jan 1, 2007

Affiliation: University of Rome Tor Vergata, INFN Sezione di Roma II, Laboratory of Subatomic Physics and Cosmology, Institut National de Physique Nucléaire et de Physique des Particules, Institut de Physique, Institute for Nuclear Research, INFN Sezione di Roma I, Istituto Superiore di Sanità, University of Catania, INFN Sezione di Catania, University of Turin, INFN Sezione di Torino, National Laboratory of Frascati, INFN Sezione di Genova, University of Messina, Laboratori Nazionali del Sud

#Meson Photoproduction #Quasi-free Neutron + Show 5 more

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Abstract

Meson photoproduction with polarized photons has proved to be a powerful tool to identify contributions of baryon resonances that are not evident in the differential cross-sections. It provides information that are complementary to those extracted using pion-nucleon scattering data. Extensive results have been produced in the past on beam asymmetries by the Graal collaboration for η and π 0 on the proton. New results are now available for the same reactions on the quasi-free neutron and for the K + photoproduction on the proton. Contributions from hitherto undetected baryon resonances may be important to understand the results.PACS13.60.Le Meson production13.88.+e Polarization in interactions and scattering25.20.Lj Photoproduction reactions

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