Measurement of the differential cross sections of the Σ-p elastic scattering in momentum range 470 to 850 MeV/c
Measurement of the differential cross sections of the Σ-p elastic scattering in momentum range 470 to 850 MeV/c
复制标题
动量范围 470 至 850 MeV/c 内 Σ-p 弹性散射微分截面的测量
DOI：
10.1103/physrevc.104.045204
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发表时间：
2021
影响因子：
3.1
通讯作者：
K. Miwa et al.
中科院分区：
文献类型：
--
作者：
Ranasinghe Manjula;Fujimoto Akiko;Yoshikawa Akimasa;Jayaratne Chandana;Hiroshi Suzuki;K. Miwa et al.
在J-PARC强子实验装置上进行了一次高散射实验。用20 M/次的高强度束流探测液氢靶的反应，积累了液氢靶中的动量标记流。通过识别大约4500个事件，弹性散射的微分截面得到了显着提高的精度。导出的微分截面在动量从470 °到850 °的范围内显示出清晰的前向峰角分布。准确的数据将对重子-重子相互作用的理论模型产生强有力的约束。
A high statisticsscattering experiment is performed at the J-PARC Hadron Experimental Facility. Momentum-taggedrunning in a liquid hydrogen target are accumulated by detecting thereaction with a high intensitybeam of 20 M/spill. The differential cross sections of theelastic scattering were derived with a drastically improved accuracy by identifying approximately 4500 events from. The derived differential cross section shows a clear forward-peaking angular distribution for amomentum range from 470 to 850. The accurate data will impose a strong constraint on the theoretical models of the baryon-baryon interactions.