Differential cross sections for neutron-proton scattering in the region of the d * ( 2380 ) dibaryon resonance
Differential cross sections for neutron-proton scattering in the region of the d * ( 2380 ) dibaryon resonance
复制标题
d * ( 2380 ) 二重子共振区域中子-质子散射的微分截面
DOI：
10.1103/physrevc.102.015204
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发表时间：
2020
影响因子：
3.1
通讯作者：
Adlarson P
中科院分区：
文献类型：
--
作者：
Adlarson P
微分截面是从在电子束能量GeV（GeV）范围内的重子共振能区进行的准自由极化散射的高统计量测量中提取的。实验是在WASA-at-COSY装置上进行的，该装置具有极化氘束撞击氢芯块靶并利用准自由过程。通过这种方式，在很大的角度范围内测量了微分横截面。所获得的角分布补充了先前发表的相应的分析功率测量。一个SAID分波分析，结合新的数据，加强了在耦合波的谐振极点的发现。
Differential cross sections have been extracted from exclusive and kinematically complete high-statistics measurements of quasifree polarizedscattering performed in the energy region of thedibaryon resonance covering the range of beam energiesGeV (GeV). The experiment was carried out with the WASA-at-COSY setup having a polarized deuteron beam impinged on the hydrogen pellet target and utilizing the quasifree process. In this way thedifferential cross sectionwas measured over a large angular range. The obtained angular distributions complement the corresponding analyzing powermeasurements published previously. A SAID partial-wave analysis incorporating the new data strengthens the finding of a resonance pole in the coupledwaves.