论文标题

标量leptoquark在$ b_s \ to(k^{(*)},d_s^{(*)})τ\barν_τ$ decay模式的功效

Efficacy of scalar leptoquark on $B_s \to (K^{(*)}, D_s^{(*)}) τ\bar ν_τ$ decay modes

论文作者

Sahoo, Suchismita, Bhol, Anupama

论文摘要

我们仔细检查了各种相关标量leptoquarks对$ B_S $ MESON的稀有半衰减过程相关的物理观察物的影响,涉及$ b \ to(u,c)l \ bar ven_lν_l$ quark Quark Levelitions。我们限制了与BR的实验限制一致的新参数空间($ b_ {u,c} \ toτν_l$),br($ b \ toπτ\barν_τ$),$ r_ {d^{(*)}},r_ {(*)}},r_ {j/ψ} $ r_ r_ r_ p $ r_ poserverbles。使用允许的参数空间,我们计算$ b_s \ to(k^{(*)},d_s^{(*)})$ b_s \ to(k^{(*)})的分支比率,前后不对称和硬化极化不对称。 Forbye,我们研究了这些过程中Lepton非宇宙性存在的可能性。

We scrutinize the impact of various relevant scalar leptoquarks on the physical observables associated with the rare semileptonic decay processes of $B_s$ meson involving $b \to (u, c) l\bar ν_l$ quark level transitions. We constrain the new parameter space consistent with the experimental limit on Br($B_{u,c} \to τν_l$), Br($B \to πτ\bar ν_τ$), $R_{D^{(*)}}, R_{J/ψ}$ and $R_π^l$ observables. Using the allowed parameter space, we compute the branching ratios, forward-backward asymmetries, lepton and hardon polarization asymmetries of $B_s \to (K^{(*)}, D_s^{(*)}) τ\bar ν_τ$ decay modes. Forbye, we look at the possibility of existence of lepton non-universality in these processes.

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