Resonance Contributions to $\eta$ Photoproduction on the Nucleon in the Isobaric Model
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چکیده
منابع مشابه
Photoproduction of Eta and Etaprime Mesons on the Nucleon
The isobar models η-MAID and η-MAID have been used to analyze new data on quasifree η photoproduction on the deuteron from Bonn and recent η data on the proton from Jlab. In η photoproduction on the neutron a bump around W = 1700 MeV was observed which could possibly arise from a narrow P11 state that is discussed as a nonstrange member of the Θ antidecuplett. In η photoproduction on the proton...
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In this paper, we present our study on the η photoproduction based on the chiral quark model. We find that quark model provides a very good description of the η production with much less parameters, and the threshold region is not a reliable source to determine the ηNN coupling constant due to its strong dependence on the properties of the resonance S11(1535). We suggest that the systematic dat...
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این تحقیق به منظور بررسی رابطه بین میزان استراتژیهای خود-تنظیم شده یادگیری و تمایل به ایجاد ارتباط دانشجویان زبان انگلیسی انجام شده است.علاوه بر این،روابط و کنش های موجود بین ریزسنجه های استراتژیهای خود-تنظیم شده یادگُیری ، مهارت نگارش و تمایل به برقراری ارتباط و همچنین تاٍثیرجنسیت دانشجویان زبان انگلیسی در استراتژیهای خود-تنظیم شده یادگیری و تمایل به برقراری ارتباط آنها مورد بررسی قرار گرفته شد.
15 صفحه اولPion photoproduction on the nucleon
The γn → πp and γ p → π+n reactions are essential probes of the transition from meson-nucleon degrees of freedom to quark-gluon degrees of freedom in exclusive processes. The cross sections of these processes are also advantageous, for the investigation of oscillatory behavior around the quark counting prediction, since they decrease relatively slower with energy compared with other photon-indu...
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ژورنال
عنوان ژورنال: Omega: Jurnal Fisika dan Pendidikan Fisika
سال: 2017
ISSN: 2502-2318,2443-2911
DOI: 10.31758/omegajphysphyseduc.v3i2.40