https://doi.org/10.1140/epjc/s10052-019-7183-8
Regular Article - Theoretical Physics
Model independent analysis of 
decay processes
1
School of Physics, University of Hyderabad, Hyderabad, 500046, India
2
Theoretical Physics Division, Physical Research Laboratory, Ahmedabad, 380009, India
* e-mail: rmsp@uohyd.ac.in
Received:
16
April
2019
Accepted:
31
July
2019
Published online:
9
August
2019
Very compelling deviations in the recently observed lepton nonuniversality observables 
of semileptonic B meson decays from their Standard Model predictions hint towards the presence of some kind of new physics beyond it. In this regard, we investigate the effect of new physics in the semileptonic 
decay processes, where 
), in a model independent way. We consider the presence of additional vector and scalar type interactions and constrain the corresponding new couplings by fitting 
, 
, 
, 
, 
and 
data. Using the constrained new parameters, we estimate the branching ratios, forward–backward asymmetry, lepton-spin asymmetry and lepton non-universality observables of 
processes. We find that the branching ratios of these decay modes are sizeable and deviate significantly (for vector-type couplings) from their corresponding standard model values, which are expected to be within the reach of Run III of Large Hadron Collider experiment.
© The Author(s), 2019
