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Source-Size Measurements in the e~3He(~4He)→e'p AX Reaction

机译:e〜3He(〜4He)→e'p AX反应中的源尺寸测量

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We report preliminary data on proton_lambda correlations at small relative momentum q in the e3He(~4He)→e'p AX reaction at E0 = 4.7(4.46) GeV using the CLAS detector at Jefferson Lab. The enhancement of the correlation function at small q was found to be in qualitative agreement with theoretical expectations. The size of emission region about 1.5 fm was estimated using Lednicky_Lyuboshitz analytical model. The experimental correlation function is comparable with the P-matrix fit of the hyperon_nucleon data. Small-relative-momentum-proton_lambda correlations both for 3 He (4He) target and for electroproduction reaction were studied for the first time.
机译:我们使用杰斐逊实验室的CLAS检测器报告了在e3He(〜4He)→e'p AX反应中在E0 = 4.7(4.46)GeV时在较小相对动量q下质子与λ相关的初步数据。发现在小q处相关函数的增强与理论预期在质量上一致。使用Lednicky_Lyuboshitz分析模型估算出约1.5 fm的发射区大小。实验相关函数可与hyperon_nucleon数据的P矩阵拟合相媲美。首次研究了3 He(4He)靶标和电产生反应的小相对动量-质子_lambda相关性。

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