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https://hdl.handle.net/2440/140233
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Type: | Journal article |
Title: | Search for an axion-like particle with forward proton scattering in association with photon pairs at ATLAS |
Author: | Aad, G. Abbott, B. Abeling, K. Abicht, N.J. Abidi, S.H. Aboulhorma, A. Abramowicz, H. Abreu, H. Abulaiti, Y. Abusleme Hoffman, A.C. Acharya, B.S. Adam Bourdarios, C. Adamczyk, L. Adamek, L. Addepalli, S.V. Addison, M.J. Adelman, J. Adiguzel, A. Adye, T. Affolder, A.A. et al. |
Citation: | The Journal of High Energy Physics, 2023; 2023(7):1-37 |
Publisher: | Springer Science and Business Media LLC |
Issue Date: | 2023 |
ISSN: | 1029-8479 1029-8479 |
Statement of Responsibility: | The Atlas Collaboration … G. Aad … E.K. Filmer ... P. Jackson ... A. X. Y. Kong ... H. Potti … E.X.L. Ting ... M. J White … et al. |
Abstract: | A search for forward proton scattering in association with light-by-light scattering mediated by an axion-like particle is presented, using the ATLAS Forward Proton spectrometer to detect scattered protons and the central ATLAS detector to detect pairs of outgoing photons. Proton-proton collision data recorded in 2017 at a centre-of-mass energy of √s = 13 TeV were analysed, corresponding to an integrated luminosity of 14.6 fb−1. A total of 441 candidate events were selected. A search was made for a narrow resonance in the diphoton mass distribution, corresponding to an axion-like particle (ALP) with mass in the range 150–1600 GeV. No excess is observed above a smooth background. Upper limits on the production cross section of a narrow resonance are set as a function of the mass, and are interpreted as upper limits on the ALP production coupling constant, assuming 100% decay branching ratio into a photon pair. The inferred upper limit on the coupling constant is in the range 0.04–0.09 TeV−1 at 95% confidence level. |
Keywords: | CP Violation; Hadron-Hadron Scattering |
Rights: | © CERN, for the benefit of the ATLAS Collaboration. Article funded by SCOAP3 . This article is distributed under the terms of the Creative Commons Attribution License (CC-BY 4.0), which permits any use, distribution and reproduction in any medium, provided the original author(s) and source are credited. |
DOI: | 10.1007/jhep07(2023)234 |
Grant ID: | ARC |
Published version: | http://dx.doi.org/10.1007/jhep07(2023)234 |
Appears in Collections: | Physics publications |
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hdl_140233.pdf | Published version | 1.87 MB | Adobe PDF | View/Open |
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