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

ATLAS Collaboration

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

ATLAS Collaboration

Physics and Astronomy

Research output: Contribution to journal › Article › peer-review

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 √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±3.0 pb (2.9±2.8 pb).

Original language	English
Journal	JHEP
Publication status	Accepted/In press - 12 Nov 2024

Bibliographical note

Not yet published as of 20/11/2024.

Cite this

@article{9d52918d4b0e46de8e8334ff57be150a,

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

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 √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±3.0 pb (2.9±2.8 pb).",

author = "{ATLAS Collaboration} and Allport, {P. P.} and P. Bellos and J. Bracinik and Charlton, {D. G.} and Chisholm, {A. S.} and A. Dimitrievska and L. Gonella and Hawkes, {C. M.} and Hillier, {S. J.} and K. Krizka and Liu, {E. H. L.} and Lomas, {J. D.} and M. Marinescu and Neep, {T. J.} and Newman, {P. R.} and K. Nikolopoulos and E. Skorda and Thomas, {J. P.} and Thompson, {P. D.} and Watson, {A. T.} and Watson, {M. F.}",

note = "Not yet published as of 20/11/2024.",

year = "2024",

month = nov,

day = "12",

language = "English",

journal = "JHEP",

issn = "1126-6708",

publisher = "Springer",

}

TY - JOUR

T1 - Search for the associated production of charm quarks and a Higgs boson decaying into a photon pair with the ATLAS detector

AU - ATLAS Collaboration

AU - Allport, P. P.

AU - Bellos, P.

AU - Bracinik, J.

AU - Charlton, D. G.

AU - Chisholm, A. S.

AU - Dimitrievska, A.

AU - Gonella, L.

AU - Hawkes, C. M.

AU - Hillier, S. J.

AU - Krizka, K.

AU - Liu, E. H. L.

AU - Lomas, J. D.

AU - Marinescu, M.

AU - Neep, T. J.

AU - Newman, P. R.

AU - Nikolopoulos, K.

AU - Skorda, E.

AU - Thomas, J. P.

AU - Thompson, P. D.

AU - Watson, A. T.

AU - Watson, M. F.

N1 - Not yet published as of 20/11/2024.

PY - 2024/11/12

Y1 - 2024/11/12

N2 - 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 √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±3.0 pb (2.9±2.8 pb).

AB - 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 √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±3.0 pb (2.9±2.8 pb).

UR - https://link.springer.com/journal/13130

M3 - Article

SN - 1126-6708

JO - JHEP

JF - JHEP

ER -

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

Abstract

Bibliographical note

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