Incoherent photoproduction of φ-meson from deuteron at low energies

被引：1
|
作者：
Kiswandhi, Alvin [1 ]
Dong, YuBing [2 ]
Yang, Shin Nan [1 ]
机构：
[1] Natl Taiwan Univ, Dept Phys, Taipei 10617, Taiwan
[2] Chinese Acad Sci, Inst High Energy Phys, Beijing, Peoples R China
来源：
MENU 2013 - 13TH INTERNATIONAL CONFERENCE MESON-NUCLEON PHYSICS AND THE STRUCTURE OF THE NUCLEON | 2014年 / 73卷
关键词：
D O I：
10.1051/epjconf/20147304008
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The LEPS and CLAS data of the incoherent photoproduction of phi meson from deuteron at low energies are studied with a model for phi meson photoproduction from nucleon consisting of Pomeron, pi, and eta meson exchanges in the t-channel, and a postulated resonance, with parameters fitted to recent LEPS data on phi production from proton near threshold. The resonance was introduced to explain an observed bump in the forward differential cross section. Within impulse approximation, we find that the Fermi motion, final state interaction, and the resonance excitation all give important contributions to improve the agreement with data. However, discrepancies remain. Contributions from phi production via spectator nucleon by other mesons like pi, rho, and phi produced from the first nucleon need to be calculated in order to gain insight on the medium effects as well as the existence of the postulated nucleon resonance.
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页数：4
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