Displaced Higgs production in Type-III seesaw at the LHC/FCC, MATHUSLA and muon collider

Sen, Chandrima and Bandyopadhyay, Priyotosh and Dutta, Saunak and et al, . (2022) Displaced Higgs production in Type-III seesaw at the LHC/FCC, MATHUSLA and muon collider. The European Physical Journal C, 82 (3). pp. 1-27. ISSN 1434-6044

Text
European_Physical_Journal_C1.pdf - Published Version
Available under License Creative Commons Attribution.
Download (2MB)

Abstract

In this article, we explore the possibility of displaced Higgs production from the decays of the heavy fermions in the Type-III seesaw extension of the Standard Model at the LHC/FCC and the muon collider. The displaced heavy fermions and the Higgs boson can be traced back by measuring the displaced charged tracks of the charged leptons along with the b-jets. A very small Yukawa coupling can lead to two successive displaced decays which makes the phenomenology even more interesting. The prospects of the transverse and longitudinal displaced decay lengths are extensively studied in the context of the boost at the LHC/FCC. Due to the parton distribution function, the longitudinal boosts leads to larger displacement compared to the transverse one, which can reach MATHUSLA and beyond. The longitudinal measurements are indeed possible by the visible part of the finalstate, which captures the complete information about the longitudinal momenta. The comparative studies are made at the LHC/FCC with the centre of mass energies of 14, 27 and 100 TeV, respectively. A futuristic study of the muon collider where the collision happen in the centre of mass frame is analysed for centre of mass energies of 3.5, 14 and 30 TeV. Contrary to LHC/FCC, here the transverse momentum diverges, however, the maximum reach in both the direction are identical due to the constant total momentum in each collision. The reach of the Yukawa couplings and fermion masses are appraised for both the colliders. FCC at 100 TeV can probe a mass of 4.25 TeV and a lowest Yukawa coupling of O(5 × 10 - 11). © 2022, The Author(s).

[error in script]

IITH Creators:

IITH Creators	ORCiD
Bandyopadhyay, Priyotosh	http://orcid.org/0000-0003-0464-5116

Item Type:

Article

Additional Information:

PB acknowledges SERB CORE Grant CRG/2018/004971 and MATRICS Grant MTR/2020/000668 for the financial and computational support towards the work. CS would like to thank MOE Government of India for an JRF fellowship. PB and CS also thank Anirban Karan for some useful discussions. CS wishes to thank Antonio Costantini and Snehashis Parashar for some useful discussions. PB wants to thank Kirtiman Ghosh for some crucial information regarding the simulation.

Uncontrolled Keywords:

LHC/FCC , Yukawa coupling, longitudinal momenta.

Subjects:

Physics

Divisions:

Department of Physics

Depositing User:

. LibTrainee 2021

Date Deposited:

22 Jul 2022 06:10

Last Modified:

22 Jul 2022 06:10