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arXiv 0710.3101hep-lat
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将NRQCD和B移动到K* gamma

Moving NRQCD and B to K* gamma

Stefan Meinel, Ronald Horgan, Lew Khomskii, Laurent C. Storoni, Matthew Wingate

摘要:

在相对于B静止系提升的参考系中离散化的NRQCD的公式将使得能够在更大范围的动量传递上计算B形状因子。我们已经启动了一个程序来计算描述B到K* γ的罕见衰变的形状因子。我们讨论了该项目的战略和挑战。作为数值计算的第一步,我们给出了用O(Lambda_{QCD} ^2/m^2,v_{NR} ^4)移动NRQCD作用量计算底鎓量的第一个结果。

英文摘要:

The formulation of NRQCD discretized in a reference frame boosted relative to the B rest frame will enable calculation of B form factors over a larger range of momentum transfer. We have initiated a program to calculate form factors describing the rare decay B to K* gamma. We discuss the strategy and challenges of the project. As a first step in the numerical calculations, we present first results for bottomonium quantities using the O(Lambda_{QCD}^2/m^2, v_{NR}^4) moving NRQCD action.

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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