Investigating R_D and R_D^* anomalies in a Left-Right model with an Inverse Seesaw

2022/04/22 by Ezzat, K., Faisel, G., Khalil, S. · 1 citation
#FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph)

paper · doi:10.48550/arxiv.2204.10922

Abstract

We investigate R_D and R_D^* anomalies in a low scale left-right symmetric model based on SU(3)_C× SU(2)_L× SU(2)_R× U(1)_B-L with a simplified Higgs sector consisting of only one bidoublet and one SU(2)_R doublet. The Wilson coefficients relevant to the transition b→ cτν are derived by integrating out the charged Higgs H^± boson, which gives the dominant contributions. We emphasize that the charged Higgs effects, with the complex right-handed quark mixing matrix, can account for both R_D and R_D^* anomalies simultaneously, while adhering to a set of significant constraints including, for instance, \rm BR(B^-_c → τ^- ν_τ) and B_s(d)- B_s(d) mixing. In relation to this, we show that the predicted values of the D^∗, τ longitudinal polarizations and P_τ(D) can be affected for the set of the parameters of the model resolving the R_D,D^∗ anomalies.

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