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Lattice QCD calculation of form factors describing the rare decays $B \to K^* \ell^+ \ell^-$ and $B_s \to \phi \ell^+ \ell^-$

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arxiv 1310.3722 v3 pith:HOM23YUM submitted 2013-10-14 hep-lat hep-ph

Ronald R. Horgan , Zhaofeng Liu , Stefan Meinel , Matthew Wingate This is my paper · ORCID
classification hep-lathep-ph
keywords decaysfactorsformlatticerareaccurateactionbottom
verification ladder T0 review T1 audit T2 compute T3 formal

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abstract

The rare decays $B^0 \to K^{*0} \mu^+ \mu^-$ and $B_s \to \phi \mu^+ \mu^-$ are now being observed with enough precision to test Standard Model predictions. A full understanding of these decays requires accurate determinations of the corresponding hadronic form factors. Here we present results of lattice QCD calculations of the $B \to K^*$ and $B_s \to \phi$ form factors; we also determine the form factors relevant for the tree-level decays $B_s \to K^* \ell \nu$. We use full-QCD configurations including 2+1 flavors of sea quarks using an improved staggered action, and we employ lattice non-relativistic QCD to describe the bottom quark.

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Cited by 13 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

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    hep-lat 2025-01 accept novelty 7.0 of 10

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    hep-ph 2019-08 accept novelty 7.0 of 10

    P-wave B→Kπ form factors are derived from light-cone sum rules with B-meson distribution amplitudes, and the K* width is shown to produce a universal ~10% form-factor increase, corresponding to a ~20% rate enhancement.

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    hep-ex 2024-11 accept novelty 5.0 of 10

    CMS reports the first complete set of optimized angular observables in B0 to K*0 mu+ mu- from 13 TeV proton collisions, with tensions in P2 and P5' relative to some SM predictions.

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    Using the covariant confined quark model, the paper predicts branching fraction, F_L, A_FB and optimized angular observables for B_s → φ ℓ+ℓ− and finds broad agreement with LHCb data.

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