Constraints on non-Standard Model Higgs boson interactions in an effective Lagrangian using differential cross sections measured in the H → γγ decay channel at √s = 8 TeV with the ATLAS detector

ATLAS Collaboration

doi:10.1016/j.physletb.2015.11.071

Scientific article

English

Constraints on non-Standard Model Higgs boson interactions in an effective Lagrangian using differential cross sections measured in the H → γγ decay channel at √s = 8 TeV with the ATLAS detector

Contributors

ATLAS Collaboration

Published in

Physics letters. B, vol. 753, p. 69-85

Collection

Open Access - SCOAP3

Publication date

2016

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 s=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.

UNIGE affiliation entities

Faculté des sciences / Section de physique / Département de physique nucléaire et corpusculaire

Citation (ISO format)

ATLAS Collaboration. Constraints on non-Standard Model Higgs boson interactions in an effective Lagrangian using differential cross sections measured in the H → γγ decay channel at √s = 8 TeV with the ATLAS detector. In: Physics letters. B, 2016, vol. 753, p. 69–85. doi: 10.1016/j.physletb.2015.11.071

Article (Published version)

CC BY

Identifiers

PID : unige:79084
DOI : 10.1016/j.physletb.2015.11.071

Journal ISSN

0370-2693

554views

304downloads

Creation

11/01/2016 14:14:10

First validation

11/01/2016 14:14:10

Update

13/10/2025 21:07:24

Status update

15/03/2023 00:02:05

Last indexation

10/11/2026 17:20:22

Constraints on non-Standard Model Higgs boson interactions in an effective Lagrangian using differential cross sections measured in the H → γγ decay channel at √s = 8 TeV with the ATLAS detector

Contributors

Collaborators

Published in

Collection

Publication date

Abstract

UNIGE affiliation entities

Citation (ISO format)

Main files (1)

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Journal ISSN

Technical informations

Creation

First validation

Update

Status update

Last indexation