Search for the associated production of charm quarks and a Higgs boson decaying into a photon pair with the ATLAS detector
Date
2025
Authors
Aad, G.
Aakvaag, E.
Abbott, B.
Abdelhameed, S.
Abeling, K.
Abicht, N.J.
Abidi, S.H.
Aboelela, M.
Aboulhorma, A.
Abramowicz, H.
Editors
Advisors
Journal Title
Journal ISSN
Volume Title
Type:
Journal article
Citation
Journal of High Energy Physics (JHEP), 2025; 2025(2):45-0-45-35
Statement of Responsibility
The ATLAS collaboration
Conference Name
Abstract
A search for the production of a Higgs boson and one or more charm quarks, in which the Higgs boson decays into a photon pair, is presented. This search uses proton-proton collision data with a centre-of-mass energy of √s = 13TeV and an integrated luminosity of 140 fb⁻¹ recorded by the ATLAS detector at the Large Hadron Collider. The analysis relies on the identification of charm-quark-containing jets, and adopts an approach based on Gaussian process regression to model the non-resonant di-photon background. The observed (expected, assuming the Standard Model signal) upper limit at the 95% confidence level on the cross-section for producing a Higgs boson and at least one charm-quark-containing jet that passes a fiducial selection is found to be 10.6 pb (8.8 pb). The observed (expected) measured cross-section for this process is 5.3 ± 3.2 pb (2.9 ± 3.1 pb).
School/Discipline
Dissertation Note
Provenance
Description
Access Status
Rights
Open Access, Copyright CERN, for the benefit of the ATLAS Collaboration. Article funded by SCOAP3. Open Access. This article is distributed under the terms of the Creative Commons Attribution License (CC-BY4.0), which permits any use, distribution and reproduction in any medium, provided the original author(s) and source are credited.