[ABSTRAK
Data terkini dengan presisi tinggi untuk reaksi p ! p0 pada energi pusat-massadalam rentang mendekati energi ambang hingga 2.84 GeV diperoleh dari kolaborasiCLAS pada laboratorium Je erson telah dianalisis dengan menggunakan modelisobar. Fotoproduksi 0 dapat dijelaskan dengan baik dalam semua rentang dataenergi yang tersedia dengan menyelidiki resonan S11 dan P11 untuk spin-1=2, selainmenggunakan kontribusi kanal nukleon s- dan u-, juga arus meson kanal t-. Untukresonan yang diselidiki, analisis digunakan nilai massa dan lebar resonan yang didukungoleh Particle Data Group. Kami menekankan, data penampang lintang sendirimampu dihasilkan nilai parameter resonan, konstanta kopling hadronik dan mesonik.
ABSTRACT
The recent high-precision data for the reaction p ! p0 at center-of-mass energiesfrom near threshold to 2.84 GeV obtained by the CLAS collaboration at the Je ersonLaboratory have been analyzed within an isobar model. The 0 photoproductioncan be described quite well over the entire energy range of available data by consideringS11 and P11 resonances, in addition to the nucleon s- and u-channel resonancecontributions, also t-channel mesonic currents. For the resonances considered, ouranalysis are used mass and width value advocated by the Particle Data Group. Weemphasize, that cross-section data alone are unable can reproduced resonance parametersvalue, coupling constant hadronic and mesonic, The recent high-precision data for the reaction p ! p0 at center-of-mass energiesfrom near threshold to 2.84 GeV obtained by the CLAS collaboration at the Je ersonLaboratory have been analyzed within an isobar model. The 0 photoproductioncan be described quite well over the entire energy range of available data by consideringS11 and P11 resonances, in addition to the nucleon s- and u-channel resonancecontributions, also t-channel mesonic currents. For the resonances considered, ouranalysis are used mass and width value advocated by the Particle Data Group. Weemphasize, that cross-section data alone are unable can reproduced resonance parametersvalue, coupling constant hadronic and mesonic] |
T43704-Saipudin.pdf :: Unduh