@article{Hayrapetyan:2024:10.1016/j.physletb.2024.138582,
author = {Hayrapetyan, A and Tumasyan, A and Adam, W and Andrejkovic, JW and Bergauer, T and Chatterjee, S and Damanakis, K and Dragicevic, M and Escalante, Del Valle A and Hussain, PS and Jeitler, M and Krammer, N and Liko, D and Mikulec, I and Schieck, J and Schöfbeck, R and Schwarz, D and Sonawane, M and Templ, S and Waltenberger, W and Wulz, CE and Darwish, MR and Janssen, T and Van, Mechelen P and Bols, ES and D'Hondt, J and Dansana, S and De, Moor A and Delcourt, M and El, Faham H and Lowette, S and Makarenko, I and Müller, D and Sahasransu, AR and Tavernier, S and Tytgat, M and Van, Putte S and Vannerom, D and Clerbaux, B and De, Lentdecker G and Favart, L and Hohov, D and Jaramillo, J and Khalilzadeh, A and Lee, K and Mahdavikhorrami, M and Malara, A and Paredes, S and Pétré, L and Postiau, N and Thomas, L and Vanden, Bemden M and Vander, Velde C and Vanlaer, P and De, Coen M and Dobur, D and Hong, Y and Knolle, J and Lambrecht, L and Mestdach, G and Rendón, C and Samalan, A and Skovpen,},
doi = {10.1016/j.physletb.2024.138582},
journal = {Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics},
title = {Search for an exotic decay of the Higgs boson into a Z boson and a pseudoscalar particle in proton-proton collisions at s=13TeV},
url = {http://dx.doi.org/10.1016/j.physletb.2024.138582},
volume = {852},
year = {2024}
}

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TY  - JOUR
AB  - A search for an exotic decay of the Higgs boson to a Z boson and a light pseudoscalar particle (a), decaying to a pair of leptons and a pair of photons, respectively, is presented. The search is based on proton-proton collision data at a center-of-mass energy of s=13TeV, collected with the CMS detector at the LHC and corresponding to an integrated luminosity of 138fb−1. The analysis probes pseudoscalar masses ma between 1 and 30 GeV, leading to two pairs of well-isolated leptons and photons. Upper limits at 95% confidence level are set on the Higgs boson production cross section times its branching fraction to two leptons and two photons. The observed (expected) limits are in the range of 1.1–17.8 (1.7–17.9) fb within the probed ma interval. An excess of data above the expected standard model background with a local (global) significance of 2.6 (1.3) standard deviations is observed for a mass hypothesis of ma=3GeV. Limits on models involving axion-like particles, formulated as an effective field theory, are also reported.
AU  - Hayrapetyan,A
AU  - Tumasyan,A
AU  - Adam,W
AU  - Andrejkovic,JW
AU  - Bergauer,T
AU  - Chatterjee,S
AU  - Damanakis,K
AU  - Dragicevic,M
AU  - Escalante,Del Valle A
AU  - Hussain,PS
AU  - Jeitler,M
AU  - Krammer,N
AU  - Liko,D
AU  - Mikulec,I
AU  - Schieck,J
AU  - Schöfbeck,R
AU  - Schwarz,D
AU  - Sonawane,M
AU  - Templ,S
AU  - Waltenberger,W
AU  - Wulz,CE
AU  - Darwish,MR
AU  - Janssen,T
AU  - Van,Mechelen P
AU  - Bols,ES
AU  - D'Hondt,J
AU  - Dansana,S
AU  - De,Moor A
AU  - Delcourt,M
AU  - El,Faham H
AU  - Lowette,S
AU  - Makarenko,I
AU  - Müller,D
AU  - Sahasransu,AR
AU  - Tavernier,S
AU  - Tytgat,M
AU  - Van,Putte S
AU  - Vannerom,D
AU  - Clerbaux,B
AU  - De,Lentdecker G
AU  - Favart,L
AU  - Hohov,D
AU  - Jaramillo,J
AU  - Khalilzadeh,A
AU  - Lee,K
AU  - Mahdavikhorrami,M
AU  - Malara,A
AU  - Paredes,S
AU  - Pétré,L
AU  - Postiau,N
AU  - Thomas,L
AU  - Vanden,Bemden M
AU  - Vander,Velde C
AU  - Vanlaer,P
AU  - De,Coen M
AU  - Dobur,D
AU  - Hong,Y
AU  - Knolle,J
AU  - Lambrecht,L
AU  - Mestdach,G
AU  - Rendón,C
AU  - Samalan,A
AU  - Skovpen,K
AU  - Van,Den Bossche N
AU  - Wezenbeek,L
AU  - Benecke,A
AU  - Bruno,G
AU  - Caputo,C
AU  - Delaere,C
AU  - Donertas,IS
AU  - Giammanco,A
AU  - Jaffel,K
AU  - Jain,S
AU  - Lemaitre,V
AU  - Lidrych,J
AU  - Mastrapasqua,P
AU  - Mondal,K
AU  - Tran,TT
AU  - Wertz,S
AU  - Alves,GA
AU  - Coelho,E
AU  - Hensel,C
AU  - Menezes,De Oliveira T
AU  - Moraes,A
AU  - Rebello,Teles P
AU  - Soeiro,M
AU  - Aldá,Júnior WL
AU  - Alves,Gallo Pereira M
AU  - Barroso,Ferreira Filho M
AU  - Brandao,Malbouisson H
AU  - Carvalho,W
AU  - Chinellato,J
AU  - Da,Costa EM
AU  - Da,Silveira GG
AU  - De,Jesus Damiao D
AU  - Fonseca,De Souza S
AU  - Martins,J
AU  - Mora,Herrera C
AU  - Mota,Amarilo K
AU  - Mundim,L
DO  - 10.1016/j.physletb.2024.138582
PY  - 2024///
SN  - 0370-2693
TI  - Search for an exotic decay of the Higgs boson into a Z boson and a pseudoscalar particle in proton-proton collisions at s=13TeV
T2  - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
UR  - http://dx.doi.org/10.1016/j.physletb.2024.138582
VL  - 852
ER  - 

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