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arXiv 1506.08440hep-phhep-lat
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自旋为-3/2的负宇称重子的质量和磁偶极矩

Mass and magnetic dipole moment of negative parity heavy baryons with spin--3/2

K. Azizi, H. Sundu

摘要:

本文用两点关联函数计算了具有单个重底夸克或粲夸克的重自旋-3/2负宇称重子的质量和留数。我们利用所得结果来研究所考虑的重子之间的对角辐射跃迁。特别地,我们利用轻锥QCD求和规则计算了相应的跃迁形状因子,并利用它计算了重自旋-3/2负宇称重子的磁偶极矩。通过构造不同Lorentz结构的求和定则,消除了正宇称自旋-3/2和正/负宇称自旋-1/2重子的污染.我们将所得结果与现有的理论预测进行了比较。

英文摘要:

We calculate the mass and residue of the heavy spin--3/2 negative parity baryons with single heavy bottom or charm quark by the help of a two-point correlation function. We use the obtained results to investigate the diagonal radiative transitions among the baryons under consideration. In particular, we compute corresponding transition form factors via light cone QCD sum rules which are then used to obtain the magnetic dipole moments of the heavy spin--3/2 negative parity baryons. We remove the pollutions coming from the positive parity spin--3/2 and positive/negative parity spin--1/2 baryons by constructing sum rules for different Lorentz structures. We compare the results obtained with the existing theoretical predictions.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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