English

New global fits to $b \to s$ data with all relevant parameters

High Energy Physics - Phenomenology 2018-12-20 v1

Abstract

The LHCb experiment has made several measurements in bsb \to s transitions which indicate tensions with the Standard Model predictions. Assuming the source of these tensions to be new physics, we present new global fits to all Wilson coefficients which can effectively receive beyond the Standard Model contributions. While the theoretically clean ratios RK()R_{K^{(*)}} which are sensitive to lepton flavour non-universality may unambiguously establish lepton non-universal new physics in the near future, most of the other tensions with the SM in the bsb \to s data, in particular in the angular observables of the BKμμB\to K^* \mu\mu decay and in the branching ratio of the BsϕμμB_s \to \phi \mu\mu decay, depend on the estimates of non-factorisable power corrections. Therefore, we also analyse the dependence of the new global fit on these corrections.

Keywords

Cite

@article{arxiv.1812.07602,
  title  = {New global fits to $b \to s$ data with all relevant parameters},
  author = {T. Hurth and A. Arbey and F. Mahmoudi and S. Neshatpour},
  journal= {arXiv preprint arXiv:1812.07602},
  year   = {2018}
}

Comments

6 pages, 2 figures. Based on a talk given at the Seventh Workshop on Theory, Phenomenology and Experiments in Flavour Physics, Capri, 8-10 June 2018, to appear in the Proceedings

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