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- W1970787991 abstract "We study the decay modes $bar{B}_sto phi pi^0$ and $bar{B}_sto phi rho^0$ using Soft Collinear Effective Theory. Within Standard Model and including the error due to the SU(3) breaking effect in the SCET parameters we find that BR $bar{B}_sto phi pi^0 =7_{-1-2}^{+1+2}times 10^{-8} $ and BR $bar{B}_sto phi pi^0=9_{-1-4}^{+1+3}times 10^{-8}$ corresponding to solution 1 and solution 2 of the SCET parameters respectively.For the decay mode $bar{B}_sto phi rho^0$, we find that BR $bar{B}_sto phi rho^0 = 20.2^{+1+9}_{-1-12}times 10^{-8} $ and BR $ bar{B}_sto phi rho^0 = 34.0^{+1.5 + 15}_{-1.5-22}times 10^{-8} $ corresponding to solution 1 and solution 2 of the SCET parameters respectively. We extend our study to include supersymmetric models with non-universal A-terms where the dominant contributions arise from diagrams mediated by gluino and chargino exchanges. We show that gluino contributions can not lead to an enhancement of the branching ratios of $bar{B}_sto phi pi^0$ and $bar{B}_sto phi rho^0$. In addition, we show that SUSY contributions mediated by chargino exchange can enhance the branching ratio of $bar{B}_sto phi pi^0$ by about 14% with respect to the SM prediction. For the branching ratio of $bar{B}_sto phi rho^0$, we find that SUSY contributions can enhance its value by about 1% with respect to the SM prediction." @default.
- W1970787991 created "2016-06-24" @default.
- W1970787991 creator A5007128692 @default.
- W1970787991 date "2012-08-01" @default.
- W1970787991 modified "2023-10-06" @default.
- W1970787991 title "Supersymmetric contributions to ${overline B_s} to phi {pi^0}$ and ${overline B_s} to phi {rho^0}$ decays in SCET" @default.
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- W1970787991 doi "https://doi.org/10.1007/jhep08(2012)031" @default.
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