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Search for exotic decays of the Higgs boson to a pair of pseudoscalars in the μμbb and ττbb final statesopen access

Authors
Hayrapetyan, A.Tumasyan, A.Adam, W.Andrejkovic, J.W.Bergauer, T.Asilar, E.Kim, D.Kim, T.J.Merlin, J.A.Park, J.Chatterjee, S.Damanakis, K.Dragicevic, M.Del Valle, A. EscalanteHussain, P.S.Jeitler, M.Krammer, N.Liko, D.Mikulec, I.Schieck, J.Schöfbeck, R.Schwarz, D.Sonawane, M.Templ, S.Waltenberger, W.Wulz, C.-E.Darwish, M.R.Janssen, T.Van Mechelen, P.Bols, E.S.D’Hondt, J.Dansana, S.De Moor, A.Delcourt, M.El Faham, H.Lowette, S.Makarenko, I.Müller, D.Sahasransu, A.R.Tavernier, S.Tytgat, M.Van Putte, S.Vannerom, D.Clerbaux, B.De Lentdecker, G.Favart, L.Hohov, D.Jaramillo, J.Khalilzadeh, A.Lee, K.Mahdavikhorrami, M.Malara, A.Paredes, S.Pétré, L.Postiau, N.Thomas, L.Bemden, M. VandenVelde, C. VanderVanlaer, P.De Coen, M.Dobur, D.Hong, Y.Knolle, J.Lambrecht, L.Mestdach, G.Rendón, C.Samalan, A.Skovpen, K.Van Den Bossche, N.Wezenbeek, L.Benecke, A.Bruno, G.Caputo, C.Delaere, C.Donertas, I.S.Giammanco, A.Jaffel, K.Jain, Sa.Lemaitre, V.Lidrych, J.Mastrapasqua, P.Mondal, K.Tran, T.T.Wertz, S.Alves, G.A.Coelho, E.Hensel, C.Menezes De Oliveira, T.Moraes, A.Rebello Teles, P.Soeiro, M.Aldá Júnior, W.L.Alves Gallo Pereira, M.Barroso Ferreira Filho, M.Brandao Malbouisson, H.Carvalho, W.Chinellato, J.Da Costa, E.M.Da Silveira, G.G.De Jesus Damiao, D.Fonseca De Souza, S.Martins, J.Mora Herrera, C.Mota Amarilo, K.Mundim, L.Nogima, H.Santoro, A.Silva Do Amaral, S.M.Sznajder, A.Thiel, M.Vilela Pereira, A.Bernardes, C.A.Calligaris, L.Fernandez Perez Tomei, T.R.Gregores, E.M.Mercadante, P.G.Novaes, S.F.Orzari, B.Padula, Sandra S.Aleksandrov, A.Antchev, G.Hadjiiska, R.Iaydjiev, P.Misheva, M.Shopova, M.Sultanov, G.Dimitrov, A.Ivanov, T.Litov, L.Pavlov, B.Petkov, P.Petrov, A.Shumka, E.Keshri, S.Thakur, S.Cheng, T.Guo, Q.Javaid, T.Mittal, M.Yuan, L.Bauer, G.Hu, Z.Yi, K.Chen, G.M.Chen, H.S.Chen, M.Iemmi, F.Jiang, C.H.Kapoor, A.Liao, H.Liu, Z.-A.Monti, F.Shahzad, M.A.Sharma, R.Song, J.N.Tao, J.Wang, C.Wang, J.Wang, Z.Zhang, H.Agapitos, A.Ban, Y.Levin, A.Li, C.Li, Q.Lyu, X.Mao, Y.Qian, S.J.Sun, X.Wang, D.Yang, H.Zhou, C.You, Z.Lu, N.Gao, X.Leggat, D.Okawa, H.Zhang, Y.Lin, Z.Lu, C.Xiao, M.Avila, C.Barbosa Trujillo, D.A.Cabrera, A.Florez, C.Fraga, J.Reyes Vega, J.A.Mejia Guisao, J.Ramirez, F.Rodriguez, M.Ruiz Alvarez, J.D.Giljanovic, D.Godinovic, N.Lelas, D.Sculac, A.Kovac, M.Sculac, T.Bargassa, P.Brigljevic, V.Chitroda, B.K.Ferencek, D.Mishra, S.Starodumov, A.Susa, T.Attikis, A.Christoforou, K.Konstantinou, S.Mousa, J.Nicolaou, C.Ptochos, F.Razis, P.A.Rykaczewski, H.Saka, H.Stepennov, A.Finger, M.Finger, M.Kveton, A.Ayala, E.Carrera Jarrin, E.Elgammal, S.Ellithi Kamel, A.Lotfy, A.Mahmoud, M.A.Dewanjee, R.K.Ehataht, K.Kadastik, M.Lange, T.Nandan, S.Nielsen, C.Pata, J.Raidal, M.Tani, L.Veelken, C.Kirschenmann, H.Osterberg, K.Voutilainen, M.Bharthuar, S.Brücken, E.Garcia, F.Havukainen, J.Kallonen, K.T.S.Kim, M.S.Kinnunen, R.Lampén, T.Lassila-Perini, K.Lehti, S.Lindén, T.Lotti, M.Martikainen, L.Myllymäki, M.Rantanen, M.M.Siikonen, H.Tuominen, E.Tuominiemi, J.Luukka, P.Petrow, H.Tuuva, T.Besancon, M.Couderc, F.Dejardin, M.Denegri, D.Faure, J.L.Ferri, F.Ganjour, S.Gras, P.Hamel de Monchenault, G.Lohezic, V.Malcles, J.Rander, J.Rosowsky, A.Sahin, M.Ö.Savoy-Navarro, A.Simkina, P.Titov, M.Baldenegro Barrera, C.Beaudette, F.Buchot Perraguin, A.Busson, P.Cappati, A.Charlot, C.Damas, F.Davignon, O.De Wit, A.Falmagne, G.Fontana Santos Alves, B.A.Ghosh, S.Gilbert, A.Granier de Cassagnac, R.Hakimi, A.Harikrishnan, B.Kalipoliti, L.Liu, G.Motta, J.Nguyen, M.Ochando, C.Portales, L.Salerno, R.Sarkar, U.Sauvan, J.B.Sirois, Y.Tarabini, A.Vernazza, E.Zabi, A.Zghiche, A.Agram, J.-L.Andrea, J.Apparu, D.Bloch, D.Brom, J.-M.Chabert, E.C.Collard, C.Falke, S.Goerlach, U.Grimault, C.Haeberle, R.Le Bihan, A.-C.Sessini, M.A.Van Hove, P.Beauceron, S.Blancon, B.Boudoul, G.Chanon, N.Choi, J.Contardo, D.Depasse, P.Dozen, C.El Mamouni, H.Fay, J.Gascon, S.Gouzevitch, M.Greenberg, C.Grenier, G.Ille, B.Laktineh, I.B.Lethuillier, M.Mirabito, L.Perries, S.Donckt, M. VanderVerdier, P.Xiao, J.Khvedelidze, A.Lomidze, I.Tsamalaidze, Z.Botta, V.Feld, L.Klein, K.Lipinski, M.Meuser, D.Pauls, A.Röwert, N.Teroerde, M.Diekmann, S.Dodonova, A.Eich, N.Eliseev, D.Engelke, F.Erdmann, M.Fackeldey, P.Fischer, B.Hebbeker, T.Hoepfner, K.Ivone, F.Jung, A.Lee, M.Y.Mastrolorenzo, L.Merschmeyer, M.Meyer, A.Mukherjee, S.Noll, D.Novak, A.Nowotny, F.Pozdnyakov, A.Rath, Y.Redjeb, W.Rehm, F.Reithler, H.Sarkisovi, V.Schmidt, A.Schuler, S.C.Sharma, A.Stein, A.Torres Da Silva De Araujo, F.Vigilante, L.Wiedenbeck, S.Zaleski, S.Dziwok, C.Flügge, G.Haj Ahmad, W.Kress, T.Nowack, A.Pooth, O.Stahl, A.Ziemons, T.Zotz, A.Aarup Petersen, H.Aldaya Martin, M.Alimena, J.Amoroso, S.An, Y.Baxter, S.Bayatmakou, M.Becerril Gonzalez, H.Behnke, O.Belvedere, A.Bhattacharya, S.Blekman, F.Borras, K.Brunner, D.Campbell, A.Cardini, A.Cheng, C.Colombina, F.Consuegra Rodríguez, S.Correia Silva, G.De Silva, M.Eckerlin, G.Eckstein, D.Estevez Banos, L.I.Filatov, O.Gallo, E.Geiser, A.Giraldi, A.Greau, 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Issue Date
May-2024
Publisher
Springer
Citation
European Physical Journal C, v.84, no.5, pp 1 - 38
Pages
38
Indexed
SCIE
SCOPUS
Journal Title
European Physical Journal C
Volume
84
Number
5
Start Page
1
End Page
38
URI
https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/213224
DOI
10.1140/epjc/s10052-024-12727-4
ISSN
1434-6044
1434-6052
Abstract
A search for exotic decays of the Higgs boson (H) with a mass of 125GeV to a pair of light pseudoscalars a1 is performed in final states where one pseudoscalar decays to two b quarks and the other to a pair of muons or τ leptons. A data sample of proton–proton collisions at s=13TeV corresponding to an integrated luminosity of 138fb-1 recorded with the CMS detector is analyzed. No statistically significant excess is observed over the standard model backgrounds. Upper limits are set at 95% confidence level (CL) on the Higgs boson branching fraction to μμbb and to ττbb, via a pair of a1s. The limits depend on the pseudoscalar mass ma1 and are observed to be in the range (0.17–3.3) ×10-4 and (1.7–7.7) ×10-2 in the μμbb and ττbb final states, respectively. In the framework of models with two Higgs doublets and a complex scalar singlet (2HDM+S), the results of the two final states are combined to determine upper limits on the branching fraction B(H→a1a1→ℓℓbb) at 95% CL, with ℓ being a muon or a τ lepton. For different types of 2HDM+S, upper bounds on the branching fraction B(H→a1a1) are extracted from the combination of the two channels. In most of the Type II 2HDM+S parameter space, B(H→a1a1) values above 0.23 are excluded at 95% CL for ma1 values between 15 and 60GeV.
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