Probing triple-Higgs productions via decay channel at a 100 TeV hadron collider
- Brookhaven National Lab. (BNL), Upton, NY (United States); Univ. of Victoria, BC (Canada); Perimeter Inst. for Theoretical Physics, Waterloo, ON (Canada)
- Univ. of Chinese Academy of Sciences (CAS), Beijing (China); Peking Univ., Beijing (China); Chinese Academy of Sciences (CAS), Beijing (China). Center for future high energy physics
- Univ. of Chinese Academy of Sciences (CAS), Beijing (China)
- Univ. of Chinese Academy of Sciences (CAS), Beijing (China); Univ. of Siegen, Siegen (Germany)
- Stony Brook Univ., NY (United States)
We report that the quartic self-coupling of the Standard Model Higgs boson can only be measured by observing the triple-Higgs production process, but it is challenging for the LHC Run 2 or International Linear Collider (ILC) at a few TeV because of its extremely small production rate. In this paper, we present a detailed Monte Carlo simulation study of the triple-Higgs production through gluon fusion at a 100 TeV hadron collider and explore the feasibility of observing this production mode. We focus on the decay channel HHH →$$b\bar{b}$$$$b\bar{b}$$γγ, investigating detector effects and optimizing the kinematic cuts to discriminate the signal from the backgrounds. Our study shows that, in order to observe the Standard Model triple-Higgs signal, the integrated luminosity of a 100 TeV hadron collider should be greater than 1.8×104 ab₋1. We also explore the dependence of the cross section upon the trilinear (λ3) and quartic (λ4) self-couplings of the Higgs. Ultimately, we find that, through a search in the triple-Higgs production, the parameters λ3 and λ4 can be restricted to the ranges [₋1,5] and [₋20,30], respectively. We also examine how new physics can change the production rate of triple-Higgs events. For example, in the singlet extension of the Standard Model, we find that the triple-Higgs production rate can be increased by a factor of O(10).
- Research Organization:
- Brookhaven National Lab. (BNL), Upton, NY (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), High Energy Physics (HEP)
- Grant/Contract Number:
- SC0012704; AC02-76SF00515; AC02- 98CH10886; SC0008061; AC02-98CH10886; DESC0008061
- OSTI ID:
- 1260148
- Alternate ID(s):
- OSTI ID: 1234306
- Report Number(s):
- BNL-112256-2016-JA; PRVDAQ; KA2401012
- Journal Information:
- Physical Review D, Vol. 93, Issue 1; ISSN 2470-0010
- Publisher:
- American Physical Society (APS)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
Web of Science
Similar Records
Search for the standard model Higgs boson produced in association with top quarks and decaying into a pair in collisions at with the ATLAS detector
Measurements of production cross sections in collisions at with the ATLAS detector and limits on anomalous gauge boson self-couplings