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Polarizations in decays B_(u,d)to VV and possible implications for R-parity violating SUSY
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Polarizations in decays B_(u,d)to VV and possible implications for R-parity violating SUSY
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Recently BABAR and Belle have measured anomalous large transverse polarizations in some pure penguin $B \to VV$ decays, which might be inconsistent with the Standard Model expectations. We try to explore its implications for R-parity violating (RPV) supersymmetry. The QCD factorization approach is employed for the hadronic dynamics of B decays. We find that it is possible to have parameter spaces solving the anomaly. Furthermore, we have derived stringent bounds on relevant RPV couplings from the experimental data, which is useful for further studies of RPV phenomena.
Forward citations
Cited by 2 Pith papers
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First observation of $CP$ violation and measurement of polarization in $B^+\to\rho(770)^0 K^*(892)^+$ decays
First observation of CP violation in B+ to rho(770)^0 K*(892)+ decays with A_CP = 0.507 and longitudinal polarization fraction f_L = 0.720 from 9 fb^-1 of LHCb data.
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Measurement of the branching fractions and longitudinal polarisations of $B^0_{(s)} \to K^{*0} \kern 0.18em \overline{\kern -0.18em K}{}^{*0}$ decays
LHCb measures f_L^d = 0.600 and f_L^s = 0.159 for B to K* Kbar* decays and reports a ratio L of 4.92 that confirms 4.4 sigma discrepancy with theory.
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