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Search for the associated production of charm quarks and a Higgs boson decaying into a photon pair with the ATLAS detector
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Search for the associated production of charm quarks and a Higgs boson decaying into a photon pair with the ATLAS detector

Georges Aad, Erlend Aakvaag, Braden Keim Abbott, Sara Abdelhameed, Kira Abeling, Nils Julius Abicht, Haider Abidi, Mohammed Aboelela, Asmaa Aboulhorma, Halina Abramowicz, …
JHEP, 卷.2(2), 頁.45
2025
DOI: https://doi.org/10.1007/JHEP02(2025)045
Web of Science ID: WOS:001426182100001

摘要

High Energy Physics - Experiment Physics
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$\sqrt{s}=13$TeV proton-proton collision data with 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 is found to be 10.4 pb (8.6 pb). The observed (expected) measured cross-section for this process is$5.2 \pm 3.0 ~\text{pb}$( $2.9 \pm 2.8 ~\text{pb}$ ).

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5 被引用次數 - Web of Science

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