https://doi.org/10.1140/epjc/s10052-019-6767-7
Regular Article - Theoretical Physics
Decays: a catalogue to compare, constrain, and correlate new physics effects
1
Indian Institute of Technology, North Guwahati, Guwahati, Assam, 781039, India
2
Department of Physics, Indian Institute of Technology, Kanpur, 208016, India
* e-mail: sunando.patra@gmail.com
Received:
27
November
2018
Accepted:
11
March
2019
Published online:
23
March
2019
In this article, we predict the standard model (SM) values of the asymmetric and angular observables in 
decays, using the results of the new up-to-date analysis in 
. We also revisit the SM prediction of the inclusive ratio 
, and we give its values in different schemes of the charm quark mass. This is the first analysis which includes all the known corrections in the SM. In addition, we analyze the 
decay modes in a model-independent framework of effective field theory beyond the standard model. Considering all the possible combinations of the effective operators in decays and using the Akaike information criterion, we find the scenarios which can best explain the available data on these channels. In the selected scenarios, best-fit values and correlations of the new parameters are extracted. Using these results, predictions are made on various observables in the exclusive and inclusive semitaunic 
decays. The graphical correlations between these observables are shown, which are found to be useful in discriminating various new physics scenarios.
© The Author(s), 2019
