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arXiv 2007.04191hep-phhep-ex
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Belle II时代包容性$\bar{B}\to X_s \ell^+ \ell^-$的现象学

Phenomenology of inclusive $\bar{B}\to X_s \ell^+ \ell^-$ for the Belle II era

Tobias Huber, Tobias Hurth, Jack Jenkins, Enrico Lunghi, Qin Qin, K. Keri Vos

摘要:

随着Belle II记录的第一批数据,我们正处于夸克味道物理学新时代的边缘。Belle~II的许多令人兴奋的新机会包括对包容性${\bar B \to X_{s} \, \ell^+\ell^-}$的全角度分析,这有可能揭示新的物理学,特别是通过其与LHCb广泛研究的排他性$b \to s \ell^+\ell^-$对应物的相互作用。在本文中,我们提出了完全更新的标准模型预测的所有角度观测必要的努力。这些预测是为Belle II量身定制的,其中包括对共线光子处理的精心研究,这在追求最高精度时变得至关重要。此外,我们提出了一个现象学研究的潜力,美女II揭示可能的新物理的包容性衰变通道,无论是在一个独立的方式,并结合排他性的模式。

英文摘要:

With the first data being recorded at Belle II, we are at the brink of a new era in quark flavour physics. The many exciting new opportunities for Belle~II include a full angular analysis of inclusive ${\bar B \to X_{s} \, \ell^+\ell^-}$ which has the potential to reveal new physics, in particular by its interplay with the exclusive $b \to s \ell^+\ell^-$ counterparts studied extensively at LHCb. In this paper, we present fully updated Standard Model predictions for all angular observables necessary for this endeavour. These predictions are tailored to Belle II and include an elaborate study of the treatment of collinear photons which become crucial when aiming for the highest precision. In addition, we present a phenomenological study of the potential for Belle II to reveal possible new physics in the inclusive decay channel, both in an independent manner and in combination with exclusive modes.

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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