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We analyze the New Physics in semileptonic decay \(B_c^+ \rightarrow B_d \mu ^{+} \nu _{\mu }\) transitions in the presence of right-handed neutrinos. We have followed the effective field theory approach for the low-energy effective Hamiltonian comprising the dimension-six operators. The new physics operators are constrained by using the available measurements of mesonic charm decay transitions, and the Wilson coefficients are determined through a \(\chi ^2\) fit. We make the predictions of differential branching fraction and angular asymmetries for the mode to explore the effect of the new physics on the mesonic decay through right-handed neutrinos to motivate future measurements.

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New Physics Effects in the Semileptonic \(B_c^+ \rightarrow B_d \mu ^+ \nu _{\mu }\) Decay

  • 会议论文

  • 发表日期：

    2025年

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  • Priyanka Boora,
  • Dinesh Kumar,
  • Kavita Lalwani

摘要

We analyze the New Physics in semileptonic decay \(B_c^+ \rightarrow B_d \mu ^{+} \nu _{\mu }\) transitions in the presence of right-handed neutrinos. We have followed the effective field theory approach for the low-energy effective Hamiltonian comprising the dimension-six operators. The new physics operators are constrained by using the available measurements of mesonic charm decay transitions, and the Wilson coefficients are determined through a \(\chi ^2\) fit. We make the predictions of differential branching fraction and angular asymmetries for the mode to explore the effect of the new physics on the mesonic decay through right-handed neutrinos to motivate future measurements.