English

EFT triangles in the same-sign $WW$ scattering process at the HL-LHC and HE-LHC

High Energy Physics - Phenomenology 2020-03-24 v3

Abstract

We investigate the Beyond Standard Model discovery potential in the framework of the Effective Field Theory (EFT) for the same-sign WWWW scattering process in purely leptonic WW decay modes at the High-Luminosity and High-Energy phases of the Large Hadron Collider (LHC). The goal of this paper is to examine the applicability of the EFT approach, with one dimension-8 operator varied at a time, to describe a hypothetical new physics signal in the WWWWWWWW quartic coupling. In the considered process there is no experimental handle on the WWWW invariant mass, and it has previously been shown that the discovery potential at 14 TeV is rather slim. In this paper we report the results calculated for a 27 TeV machine and compare them with the discovery potential obtained at 14 TeV. We find that while the respective discovery regions shift to lower values of the Wilson coefficients, the overall discovery potential of this procedure does not get significantly larger with a higher beam energy.

Keywords

Cite

@article{arxiv.1906.10769,
  title  = {EFT triangles in the same-sign $WW$ scattering process at the HL-LHC and HE-LHC},
  author = {Geetanjali Chaudhary and Jan Kalinowski and Manjit Kaur and Paweł Kozów and Kaur Sandeep and Michał Szleper and Sławomir Tkaczyk},
  journal= {arXiv preprint arXiv:1906.10769},
  year   = {2020}
}

Comments

21 pages, published version plus typo corrected in the Acknowledgments