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Re-examination of the rare decay $B_s \to \phi \mu^+ \mu^-$ using holographic light-front QCD

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arxiv 1910.06829 v2 pith:D67TBWFD submitted 2019-10-15 hep-ph

classification hep-ph
keywords branchingratioagreementdifferentialholographichqcdlhcblight-front
verification ladder T0 review T1 audit T2 compute T3 formal
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abstract

We calculate the Standard Model (SM) predictions for the differential branching ratio of the rare $B_s \to \phi\mu^+ \mu^-$ decays using $B_s \to \phi$ transition form factors (TFFs) obtained using holographic light-front QCD (hQCD) instead of the traditional QCD sum rules (QCDSR) . Our predictions for the differential branching ratio is in better agreement with the LHCb data. Also, we find that the hQCD prediction for $R_{K^*\phi}$, the ratio of the branching fraction of $B \to K^* \mu^+ \mu^-$ to that of $B_s \to \phi\mu^+ \mu^-$ , is in excellent agreement with both the LHCb and CDF results in low $q^2$ range.

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  1. $\phi$-meson spectroscopy and diffractive production using two Schr\"odinger like equations on the light-front

    hep-ph 2025-01 conditional novelty 4.0 of 10

    A two-equation light-front model reproduces the phi meson mass spectrum and HERA diffractive production cross sections, but underpredicts its decay constant.

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