https://doi.org/10.1140/epjc/s10052-020-8232-z
Regular Article - Theoretical Physics
Predictions for 
in non-universal 
models
1
Indian Institute of Technology Jodhpur, Jodhpur, 342037, India
2
Tata Institute of Fundamental Research, Mumbai, 400005, India
3
National Centre for Nuclear Research, Pasteura 7, 02-093, Warsaw, Poland
4
Department of Physics, University of Rajasthan, Jaipur, 302004, India
* e-mail: shireen.gangal@theory.tifr.res.in
Received:
28
March
2020
Accepted:
11
July
2020
Published online:
28
July
2020
The lepton flavor universality violating (LFUV) measurements 
and 
in B meson decays can be accounted for in non-universal models. We constrain the couplings of these models by performing a global fit to correlated 
and 
processes, and calculate their possible implications for 
observables. For real new physics (NP) couplings, the 1
favored parameters allow the corresponding LFUV ratio 
in to range between 0.8 and 1.2 at low 
. Complex NP couplings improve the best fit only marginally, however they allow a significant enhancement of the branching ratio, while increasing the range of 
at low to 0.8–1.8. We find that NP could cause zero-crossing in the forward–backward asymmetry 
to shift towards lower values, and enhancement in the magnitude of integrated . The CP asymmetry 
may be suppressed and even change sign. The simultaneous measurements of integrated and values to 0.1 and 1% respectively, would help in constraining the effective NP Wilson coefficient 
in 
interactions.
© The Author(s), 2020
