English

Constraining R-parity-violating couplings in $\tau$-processes at the LHC and in electroweak precision measurements

High Energy Physics - Phenomenology 2019-11-27 v1

Abstract

We find new limits on the λ3jk\lambda'_{3jk} R-parity violating (RPV) couplings of the minimal supersymmetric standard model, using Drell-Yan differential cross sections at the LHC and electroweak precision measurements from LEP and SLC. Specifically, limits on six out of the nine λ3jk\lambda'_{3jk}-couplings, with j=1 or 2j=1\text{ or }2, are obtained using Drell-Yan data, with the remaining three (for j=3j=3) bounded by precision electroweak data. We also update the limits on all λijk\lambda'_{ijk}-couplings using electroweak data and find new bounds on λ132\lambda'_{132} and λ232\lambda'_{232} that are stronger than obtained elsewhere. A table of all current bounds on λijk\lambda'_{ijk} is given in an appendix.

Keywords

Cite

@article{arxiv.1906.01063,
  title  = {Constraining R-parity-violating couplings in $\tau$-processes at the LHC and in electroweak precision measurements},
  author = {Saurabh Bansal and Antonio Delgado and Christopher Kolda and Mariano Quiros},
  journal= {arXiv preprint arXiv:1906.01063},
  year   = {2019}
}

Comments

9 pages, 3 figures, 3 tables