Regular Article - Theoretical Physics
Impact of anomalies on rare charm decays in non-universal models
Indian Institute of Technology Jodhpur, 342037, Jodhpur, India
2 Department of Physics, University of Rajasthan, 302004, Jaipur, India
Accepted: 24 December 2021
Published online: 11 January 2022
In this work, we study the impact of , mixing and neutrino trident measurements on observables in decays induced by transition in the context of a non-universal model which generates and new physics scenarios at the tree level. We inspect the effects on , and decays which are induced by the quark level transition . The fact that the branching ratios of these decays are negligible in the standard model (SM) and the long distance effects are relatively smaller in comparison to their charged dileptons counterparts, they are considered to provide genuine null-tests of SM. Therefore the observation of these modes at the level of current as well as planned experimental sensitivities would imply unambiguous signature of new physics. Using the constraints on couplings coming from a combined fit to , and neutrino trident data, we find that any meaningful enhancement over the SM value is ruled out in the considered framework. The same is true for mixing observable along with and decay modes which are induced through transition.
© The Author(s) 2022
Open Access This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
Funded by SCOAP3