Searches for heavy neutrinos at multi-TeV muon collider: a resonant leptogenesis perspective

Indrani Chakraborty; Himadri Roy; Tripurari Srivastava

doi:10.1140/epjc/s10052-023-11406-0

2023 Impact factor 4.2

Particles and Fields

Open Access

Eur. Phys. J. C (2023) 83: 280
https://doi.org/10.1140/epjc/s10052-023-11406-0

Regular Article - Theoretical Physics

Searches for heavy neutrinos at multi-TeV muon collider: a resonant leptogenesis perspective

Indrani Chakraborty¹, Himadri Roy¹^b and Tripurari Srivastava²

¹ Department of Physics, Indian Institute of Technology Kanpur, 208016, Kanpur, Uttar Pradesh, India
² Department of Physics and Astrophysics, University of Delhi, 110007, Delhi, India

^b himadrir@iitk.ac.in

Received: 12 October 2022
Accepted: 14 March 2023
Published online: 8 April 2023

Abstract

In this work, the Standard Model (SM) is extended with two right-handed (RH) neutrinos and two singlet neutral fermions to yield active neutrino masses via (2,2) inverse see-saw mechanism. We first validate the multi-dimensional model parameter space with neutrino oscillation data, obeying the experimental bounds coming from the lepton flavor violating (LFV) decays: $μ \to e γ, τ \to e γ, τ \to μ γ$ $\mu \rightarrow e \gamma ,~ \tau \rightarrow e \gamma , ~ \tau \rightarrow \mu \gamma$ . Besides we also search for the portion of the parameter space which yield the observed baryon asymmetry of the universe via resonant leptogenesis. Further, we pick up a few benchmark points from the aforementioned parameter space with TeV scale heavy neutrinos and perform an exhaustive collider analysis of the final states: $2 l + E_{T} /$ $2l + E_T \!\!\!\!\!\!/\;\,$ and $1 l + 2 j + ⧸ E_{T}$ $1\,l + 2j + \not \! E_T$ in multi-TeV muon collider.

© The Author(s) 2023

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