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Title: Probing triple-Higgs productions via 4 b 2 γ decay channel at a 100 TeV hadron collider

Journal Article · · Physical Review D
 [1];  [2];  [3];  [4];  [5]
  1. Brookhaven National Lab. (BNL), Upton, NY (United States); Univ. of Victoria, BC (Canada); Perimeter Inst. for Theoretical Physics, Waterloo, ON (Canada)
  2. 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
  3. Univ. of Chinese Academy of Sciences (CAS), Beijing (China)
  4. Univ. of Chinese Academy of Sciences (CAS), Beijing (China); Univ. of Siegen, Siegen (Germany)
  5. 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
Citation Metrics:
Cited by: 36 works
Citation information provided by
Web of Science

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Cited By (7)

LHC benchmark scenarios for the real Higgs singlet extension of the standard model journal May 2016
Trilinear Higgs coupling determination via single-Higgs differential measurements at the LHC journal December 2017
FCC Physics Opportunities: Future Circular Collider Conceptual Design Report Volume 1 journal June 2019
Triple Higgs boson production to six b-jets at a 100 TeV proton collider: Anomalous self-couplings and gauge-singlet scalars journal November 2019
FCC Physics Opportunities text January 2019
LHC Benchmark Scenarios for the Real Higgs Singlet Extension of the Standard Model text January 2016
Higgs Pair Production at Future Hadron Colliders: From Kinematics to Dynamics text January 2018