Measurement of spin density matrix elements in Λ(1520) photoproduction at 8.2–8.8 GeV
Measurement of spin density matrix elements in Λ(1520) photoproduction at 8.2–8.8 GeV
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8.2–8.8 GeV Î(1520) 光制作中自旋密度矩阵元素的测量
DOI：
10.1103/physrevc.105.035201
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发表时间：
2022
影响因子：
3.1
通讯作者：
Barlow, J.
中科院分区：
文献类型：
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作者：
Adhikari, S.;Akondi, C. S.;Albrecht, M.;Ali, A.;Amaryan, M.;Asaturyan, A.;Austregesilo, A.;Baldwin, Z.;Barbosa, F.;Barlow, J.
我们报告了光产生反应中的自旋密度矩阵元素的测量，通过其随后的衰变。测量是在杰斐逊实验室的D厅使用线性偏振光子束进行的，作为GSTX实验计划的一部分。这是在这个光子能量范围内的第一次这样的测量。结果以动量传递平方的仓表示。我们比较了结果与Reggeon交换模型，并确定自然交换幅度占主导地位的光合作用。
We report on the measurement of spin density matrix elements of thein the photoproduction reaction, via its subsequent decay to. The measurement was performed as part of the GlueX experimental program in Hall D at Jefferson Laboratory using a linearly polarized photon beam with. These are the first such measurements in this photon energy range. Results are presented in bins of momentum transfer squared,. We compare the results with a Reggeon exchange model and determine that natural exchange amplitudes are dominant inphotoproduction.