@Article{ATLASCollaborationAad_etal2023,
author="ATLAS Collaboration (Aad, G. et al
and Amos, K. R.
and Aparisi Pozo, J. A.
and Bailey, A. J.
and Cabrera Urban, S.
and Cantero, J.
and Cardillo, F.
and Castillo Gimenez, V.
and Chitishvili, M.
and Costa, M. J.
and Didenko
and Escobar, C.
and Fiorini, L.
and Fullana Torregrosa, E.
and Fuster, J.
and Garcia, C.
and Garcia Navarro, J. E.
and Gomez Delegido, A. J.
and Gonzalez de la Hoz, S.
and Gonzalvo Rodriguez, G. R.
and Guerrero Rojas, J. G. R.
and Higon-Rodriguez, E.
and Lacasta, C.
and Lozano Bahilo, J. J.
and Marti-Garcia, S.
and Martinez Agullo, P.
and Miralles Lopez, M.
and Mitsou, V. A.
and Monsonis Romero, L.
and Moreno Llacer, M.
and Munoz Perez, D.
and Navarro-Gonzalez, J.
and Poveda, J.
and Prades Iba{\~{n}}ez, A.
and Rubio Jimenez, A.
and Ruiz-Martinez, A.
and Sabatini, P.
and Salt, J.
and Sanchez Sebastian, V.
and Sayago Galvan, I.
and Senthilkumar, V.
and Soldevila, U.
and Sanchez, J.
and Torro Pastor, E.
and Valero, A.
and Valls Ferrer, J. A.
and Varriale, L.
and Villaplana Perez, M.
and Vos, M.",
title="Searches for exclusive Higgs and Z boson decays into a vector quarkonium state and a photon using 139 fb-1 of ATLAS {\textsurd}s=13 TeV proton-proton collision data",
journal="European Physical Journal C",
year="2023",
publisher="Springer",
volume="83",
number="9",
pages="781 - 33pp",
abstract="Searches for the exclusive decays of Higgs and Z bosons into a vector quarkonium state and a photon are performed in the mu(+)mu(-) gamma final state with a proton-proton collision data sample corresponding to an integrated luminosity of 139 fb(-1) collected at root s = 13 TeV with the ATLAS detector at the CERN Large Hadron Collider. The observed data are compatible with the expected backgrounds. The 95{\%} confidence-level upper limits on the branching fractions of the Higgs boson decays into J/psi gamma, psi(2S)gamma, and Upsilon(1S, 2S, 3S)gamma are found to be 2.0 x 10(-4), 10.5x10(-4), and (2.5, 4.2, 3.4) x10(-4), respectively, assuming Standard Model production of the Higgs boson. The corresponding 95{\%} CL upper limits on the branching fractions of the Z boson decays are 1.2 x 10(-6), 2.4 x 10(-6), and (1.1, 1.3, 2.4) x10(-6). An observed 95{\%} CL interval of (-133, 175) is obtained for the kappa(c)/kappa(gamma) ratio of Higgs boson coupling modifiers, and a 95{\%} CL interval of (-37, 40) is obtained for kappa(b)/kappa(gamma).",
optnote="WOS:001071193900001",
optnote="exported from refbase (https://references.ific.uv.es/refbase/show.php?record=5728), last updated on Fri, 03 Nov 2023 10:53:14 +0000",
issn="1434-6044",
doi="10.1140/epjc/s10052-023-11869-1",
opturl="https://arxiv.org/abs/2208.03122",
opturl="https://doi.org/10.1140/epjc/s10052-023-11869-1",
language="English"
}