论文标题
$ b \ to s \ ell \ ell $异常的新物理学及其对互补中性衰减的影响
New Physics in $b\to s\ell\ell$ anomalies and its implications for the complementary neutral current decays
论文作者
论文摘要
我们研究了各种$ b \ f \ s \ ell^+\ ell^ - 带有标量，伪cal，vector，vector，axial-vector，axial-vector和$λ$ Baryon Baryon最终状态的标准模型和新的物理预测（Lepton-Flavour-宇宙性违反（LFUV）的比率（LFUV））。为了制定物理可观察物，我们使用独立的有效哈密顿式方法并采用螺旋形式形式。 We provide the explicit expressions of the helicity amplitudes in terms of the Wilson coefficients and the hadronic form factors by using the same kinematical configuration and polarization conventions for all the decay channels.We perform the numerical analysis with new physics scenarios selected from the recent global fits to $b\to s\ell^+\ell^-$ data, having specific new physics model interpretations.我们发现，不同运动区域中这些互补通道的某些LFUV比对新物理学具有很高的敏感性，并且在Belle II和LHCB实验中对它们的未来测量值以及测试新的物理/LFUV，可以帮助区分一些不同新物理学的可能性。
We study the Standard Model and the new physics predictions for the lepton-flavour-universality violating (LFUV) ratios in various $b\to s \ell^+\ell^-$ channels with scalar, pseudoscalar, vector, axial-vector, and $Λ$ baryon final states, considering both unpolarized and polarized final state hadrons. In order to formulate physical observables, we use the model independent effective Hamiltonian approach and employ the helicity formalism. We provide the explicit expressions of the helicity amplitudes in terms of the Wilson coefficients and the hadronic form factors by using the same kinematical configuration and polarization conventions for all the decay channels.We perform the numerical analysis with new physics scenarios selected from the recent global fits to $b\to s\ell^+\ell^-$ data, having specific new physics model interpretations. We find that some of the LFUV ratios for these complementary channels in different kinematical regions have high sensitivity to new physics and the future measurements of them in Belle II and LHCb experiments, along with testing new physics/LFUV, can help to distinguish among some of the different new physics possibilities.
