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q^2 dependence for RKstar

23 May 2019, 15:20
20m
Aransas (Omni Hotel)

Aransas

Omni Hotel

900 N Shoreline Blvd, Corpus Christi, TX 78401
Oral BSM in Flavor Physics BSM in Flavor Physics

Speaker

Peisi Huang (University of Nebraska-Lincoln)

Description

The LHCb experiment has recently reported evidence of deviation from the Standard Model from B decays. The experimental data also suggests that there can be a q2 dependence in RK. In this talk, I will address the q^2 dependence in two possible scenarios. The first scenario is that the q2 dependence is actually due to hadronic effects. The hadronic effects are kinematically suppressed in the SM but not in new physics. I will show that, with modifications of one of the form factors, one can explain the q2 dependence in RK. In the second scenario, I will introduce an additional light Z to account for the q2 dependence. I will discuss the current constraints with a light Z and will show how a light Z together with some other new physics can explain the experimental data.

Authors

Bhaskar Dutta (Texas A&M University) Peisi Huang (University of Nebraska-Lincoln) Xiao-Gang He

Presentation materials