Explaining the observed deviation in R(D^(*)) in an anomalous 2HDM

2016/10/20 by Lobsang Dhargyal, Dhargyal, Lobsang
Computer Science · Physics and Astronomy · #Computational Physics and Python Applications #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #Neutrino Physics Research #Particle physics theoretical and experimental studies

paper · pdf · doi:10.48550/arxiv.1610.06291

openalex publication_date 2016/10/20 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

The reported combined excess of about 4σ, by BABAR, Belle and LHCb, in the measurements of R(D^(*)) and Br(B → τν_τ) from that of the standard model expectation constitute the most significant discrepancy from the standard model in collider experiments thus far(apart from the non zero neutrino masses). Here we analyze the phenomenological implications for these decay modes in a Flipped/Lepton-Specific two-Higg-doublet model with anomalously enhanced charged Higgs coupling to τ/b. We conclude that this extension of the standard model can give results in agreement within 1σ of the experimental values for the combination of R(D^(*)) and Br(B → τν_τ) data.

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