"Unification" of BSM Searches and SM Measurements: the case of lepton$+MET$ and $m_W$

• DOI: 10.48550/arxiv.2404.17574
• Publication Date: 2024-04-26
• Authors: Kaustubh Agashe; Sagar Airen; Roberto Franceschini; Doojin Kim; A. Kotwal; Lorenzo Ricci; Deepak Sathyan
• Keywords: Unification

We develop the idea that unprecedented precision in Standard Model (SM) measurements, with further improvement at HL-LHC, enables new searches for physics Beyond (BSM).As an illustration, we demonstrate measured kinematic distributions of lepton$+MET$ final state not only determine mass $W$ boson, but are also sensitive to light physics. Such a search thus requires simultaneous fit BSM and SM parameters, "unifying" measurements LHC Tevatron. In this paper, complete program initiated our earlier work arXiv:2310.13687. particular, analyze ($i$) novel decay modes boson neutrinophilic invisible scalar or heavy neutrino; ($ii$) modified production bosons, namely, associated hadrophilic $Z^\prime$ gauge boson; ($iii$) scenarios without on-shell such as slepton-sneutrino Minimal Supersymmetric (MSSM). Here, complement previous MSSM analysis arXiv:2310.13687 by considering different region. Our results highlight can still be directly discovered LHC, including physics,via measurements. Furthermore, illustrate signals subtle, yet potentially large enough affect parameters themselves, mass.