Isotensor Dibaryon in the pp?ppp^{+}p^{-} Reaction?

Isotensor Dibaryon in the pp?ppp^{+}p^{-} Reaction?
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pp?ppp^{ }p^{-} 反应中的等张量二重子?

DOI:
10.1103/physrevlett.121.052001
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发表时间:
2018
影响因子:
8.6
通讯作者:
Adlarson P
Adlarson P
中科院分区:
物理与天体物理1区
文献类型:
--
作者:
Adlarson P

文献摘要

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准自由反应的独家测量已经在WASA@COSY通过碰撞进行。总截面和微分截面已被提取覆盖的能量区域,这是该地区的和共振激发。描述这些激发通道介子交换的计算与测量的微分截面不同,并且大大低估了实验总截面。与π介子相关的等张量或双重子共振能克服这些缺陷。
Exclusive measurements of the quasifreereaction have been carried out at WASA@COSY by means ofcollisions at. Total and differential cross sections have been extracted covering the energy region, which is the region ofandresonance excitations. Calculations describing these excitations by-channel meson exchange are at variance with the measured differential cross sections and underpredict substantially the experimental total cross section. An isotensordibaryon resonance withproduced associatedly with a pion is able to overcome these deficiencies.