Constraints on Non-Standard Model Higgs Boson Interactions in an Effective Lagrangian Using Differential Cross Sections Measured in the H → γγ Decay Channel at √s̅ = 8 TeV with the ATLAS Detector

DSpace/Manakin Repository

Constraints on Non-Standard Model Higgs Boson Interactions in an Effective Lagrangian Using Differential Cross Sections Measured in the H → γγ Decay Channel at √s̅ = 8 TeV with the ATLAS Detector

Show full item record

Title: Constraints on Non-Standard Model Higgs Boson Interactions in an Effective Lagrangian Using Differential Cross Sections Measured in the H → γγ Decay Channel at √s̅ = 8 TeV with the ATLAS Detector
Author(s):
Aad, G.;
Abbott, B.;
Abdallah, J.;
Abdinov, O.;
Aben, R.;
Abolins, M.;
AbouZeid, O. S.;
Izen, Joseph M.;
Leyton, Michael;
Meirose, Bernhard;
Namasivayam, Harisankar;
Reeves, Kendall;
ATLAS Collaboration
Date Created: 2015-12-02
Format: Text
Item Type: Article
Keywords: Show Keywords
Abstract: The strength and tensor structure of the Higgs boson's interactions are investigated using an effective Lagrangian, which introduces additional CP-even and CP-odd interactions that lead to changes in the kinematic properties of the Higgs boson and associated jet spectra with respect to the Standard Model. The parameters of the effective Lagrangian are probed using a fit to five differential cross sections previously measured by the ATLAS experiment in the H → γγ decay channel with an integrated luminosity of 20.3 fb⁻¹ at √s̅ = 8 TeV. In order to perform a simultaneous fit to the five distributions, the statistical correlations between them are determined by re-analysing the H → γγ candidate events in the proton-proton collision data. No significant deviations from the Standard Model predictions are observed and limits on the effective Lagrangian parameters are derived. The statistical correlations are made publicly available to allow for future analysis of theories with non-Standard Model interactions.
Publisher: Elsevier Science B.V.
ISSN: 0370-2693
Source: Physics Letters B
Link to Related Resource: http://dx.doi.org/10.1016/j.physletb.2015.11.071
Persistent Link: http://hdl.handle.net/10735.1/5049
Bibliographic Citation: Aad, G., B. Abbott, J. Abdallah, O. Abdinov, et al. 2016. "Constraints on non-Standard Model Higgs boson interactions in an effective Lagrangian using differential cross sections measured in the H → γγ decay channel at √s̅ = 8 TeV with the ATLAS detector." Physics Letters B 753, doi:10.1016/j.physletb.2015.11.071
Terms of Use: CC BY 4.0 (Attribution)
©2015 CERN, for the ATLAS Collaboration

Files in this item

Files Size Format View
NSM-2307-4494.50.pdf 1.537Mb PDF View/Open Article

This item appears in the following Collection(s)


Show full item record

CC BY 4.0 (Attribution) Except where otherwise noted, this item's license is described as CC BY 4.0 (Attribution)