English

Tensors for tending to tensions in $ \tau $ decays

High Energy Physics - Phenomenology 2019-02-27 v1

Abstract

We propose a manifestly gauge invariant effective tensor operator that can account for the CP CP asymmetry anomaly in τ \tau decays, contrary to the claim made in literature. Additionally, this operator can also help in resolving the long-standing discrepancy in the value of Vus V_{us} extracted from inclusive τ \tau decays. By construction, the operator evades bounds from neutron electric dipole moment, while keeping the extraction of Vus V_{us} from exclusive τ \tau decays unaffected. We explicitly provide a renormalizable model of flavor symmetries that yields the desired effective tensor operator.

Keywords

Cite

@article{arxiv.1902.09561,
  title  = {Tensors for tending to tensions in $ \tau $ decays},
  author = {Amol Dighe and Subhajit Ghosh and Girish Kumar and Tuhin S. Roy},
  journal= {arXiv preprint arXiv:1902.09561},
  year   = {2019}
}