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Title: Probing the Higgs self coupling via single Higgs production at the LHC

Here, we propose a method to determine the trilinear Higgs self coupling that is alternative to the direct measurement of Higgs pair production total cross sections and differential distributions. Furthermore, the method relies on the effects that electroweak loops featuring an anomalous trilinear coupling would imprint on single Higgs production at the LHC. We first calculate these contributions to all the phenomenologically relevant Higgs production (ggF, VBF, WH, ZH, t$$\bar{t}$$ ) and decay (γγ,WW*/ZZ*→ 4f, b$$\bar{b}$$,ττ) modes at the LHC and then estimate the sensitivity to the trilinear coupling via a one-parameter fit to the single Higgs measurements at the LHC 8 TeV. We also found that the bounds on the self coupling are already competitive with those from Higgs pair production and will be further improved in the current and next LHC runs.
Authors:
 [1] ;  [2] ;  [3] ;  [3]
  1. Roma Tre Univ. (Italy). Dept. of Mathematics and Physics
  2. Brookhaven National Lab. (BNL), Upton, NY (United States). Physics Dept.
  3. Catholic Univ. of Louvain (Belgium). Center for Cosmology
Publication Date:
Report Number(s):
BNL-113695-2017-JA
Journal ID: ISSN 1029-8479; KA2401012; TRN: US1701130
Grant/Contract Number:
SC00112704
Type:
Accepted Manuscript
Journal Name:
Journal of High Energy Physics (Online)
Additional Journal Information:
Journal Name: Journal of High Energy Physics (Online); Journal Volume: 2016; Journal Issue: 12; Journal ID: ISSN 1029-8479
Publisher:
Springer Berlin
Research Org:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Org:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; Beyond standard model; higgs physics
OSTI Identifier:
1349567