Search for the nonresonant and resonant production of a Higgs boson in association with an additional scalar boson in the γγττ final state in proton-proton collisions at $$ \sqrt{s}=13 $$ TeV
Articolo
Data di Pubblicazione:
2026
Abstract:
The results of a search for the production of two scalar bosons in final states with two photons and two tau leptons are presented. The search considers both nonresonant production of a Higgs boson pair, HH, and resonant production via a new boson X which decays either to HH or to H and a new scalar Y. The analysis uses up to 138 fb−1 of proton-proton collision data, recorded between 2016 and 2018 by the CMS experiment at the LHC at a center-of-mass energy of 13 TeV. No evidence for signal is found in the data. For the nonresonant production, the observed (expected) upper limit at 95% confidence level (CL) on the HH production cross section is set at 930 (740) fb, corresponding to 33 (26) times the standard model prediction. At 95% CL, HH production is observed (expected) to be excluded for values of κλ outside the range between −12 (−9.4) and 17 (15). Observed (expected) upper limits at 95% CL for the X → HH cross section are found to be within 160 to 2200 (200 to 1800) fb, depending on the mass of X. In the X → Y(ττ)H(γγ) search, the observed (expected) upper limits on the product of the production cross section and decay branching fractions vary between 0.059–1.2 fb (0.087–0.68 fb). For the X → Y(γγ)H(ττ) search the observed (expected) upper limits on the product of the production cross section and Y → γγ branching fraction vary between 0.69–15 fb (0.73–8.3 fb) in the low Y mass search, tightening constraints on the next-to-minimal supersymmetric standard model, and between 0.64–10 fb (0.70–7.6 fb) in the high Y mass search.
Tipologia CRIS:
1.1 Articolo in rivista
Keywords:
Beyond Standard Model; Hadron-Hadron Scattering; Higgs Physics
Elenco autori:
Null, Null; Hayrapetyan, A.; Tumasyan, A.; Adam, W.; Andrejkovic, J. W.; Benato, L.; Bergauer, T.; Chatterjee, S.; Damanakis, K.; Dragicevic, M.; Hussain, P. S.; Jeitler, M.; Krammer, N.; Li, A.; Liko, D.; Mikulec, I.; Schieck, J.; Schwarz, D.; Schöfbeck, R.; Sonawane, M.; Waltenberger, W.; Wulz, C. -E.; Janssen, T.; Van Laer, T.; Van Mechelen, P.; Breugelmans, N.; D'Hondt, J.; Dansana, S.; De Moor, A.; Delcourt, M.; Heyen, F.; Lowette, S.; Makarenko, I.; Müller, D.; Tavernier, S.; Tytgat, M.; Van Onsem, G. P.; Van Putte, S.; Vannerom, D.; Bilin, B.; Clerbaux, B.; Das, A. K.; De Bruyn, I.; De Lentdecker, G.; Evard, H.; Favart, L.; Gianneios, P.; Jaramillo, J.; Khalilzadeh, A.; Khan, F. A.; Lee, K.; Malara, A.; Shahzad, M. A.; Thomas, L.; Vanden Bemden, M.; Vander Velde, C.; Vanlaer, P.; De Coen, M.; Dobur, D.; Gokbulut, G.; Hong, Y.; Knolle, J.; Lambrecht, L.; Marckx, D.; Mota Amarilo, K.; Skovpen, K.; Van Den Bossche, N.; Van Der Linden, J.; Wezenbeek, L.; Bein, S.; Benecke, A.; Bethani, A.; Bruno, G.; Caputo, C.; De Favereau De Jeneret, J.; Delaere, C.; Donertas, I. S.; Giammanco, A.; Guzel, A. O.; Jain, Sa.; Lemaitre, V.; Lidrych, J.; Mastrapasqua, P.; Tran, T. T.; Turkcapar, S.; Alves, G. A.; Coelho, E.; Correia Silva, G.; Hensel, C.; Menezes De Oliveira, T.; Mora Herrera, C.; Rebello Teles, P.; Soeiro, M.; Tonelli Manganote, E. J.; Vilela Pereira, A.; Aldá Júnior, W. L.; 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.; Gomes De Souza, R.; Laux Kuhn, T.; Macedo, M.; Martins, J.; Mundim, L.; Nogima, H.; Pinheiro, J. P.; Santoro, A.; Sznajder, A.; Thiel, M.; Bernardes, C. A.; Calligaris, L.; Gregores, E. M.; Maietto Silverio, I.; Mercadante, P. G.; Novaes, S. F.; Orzari, B.; Padula, Sandra S.; Fernandez Perez Tomei, T. R.; Aleksandrov, A.; Antchev, G.; Hadjiiska, R.; Iaydjiev, P.; Misheva, M.; Shopova, M.; Sultanov, G.; Dimitrov, A.; Litov, L.; Pavlov, B.; Petkov, P.; Petrov, A.; Shumka, E.; Keshri, S.; Laroze, D.; Thakur, S.; Cheng, T.; Javaid, T.; Yuan, L.; Hu, Z.; Liang, Z.; Liu, J.; Chen, G. M.; Chen, H. S.; Chen, M.; Iemmi, F.; Jiang, C. H.; Kapoor, A.; Liao, H.; Liu, Z. -A.; Sharma, R.; Song, J. N.; Tao, J.; Wang, C.; Wang, J.; Wang, Z.; Zhang, H.; Zhao, J.; Agapitos, A.; Ban, Y.; Carvalho Antunes De Oliveira, A.; Deng, S.; Guo, B.; Jiang, C.; Levin, A.; Li, C.; Li, Q.; Mao, Y.; Qian, S.; Qian, S. J.; Qin, X.; Sun, X.; Wang, D.; Yang, H.; Zhang, L.; Zhao, Y.; Zhou, C.; Yang, S.; You, Z.; Jaffel, K.; Lu, N.; Bauer, G.; Li, B.; Yi, K.; Zhang, J.; Li, Y.; Lin, Z.; Lu, C.; Xiao, M.; Avila, C.; Barbosa Trujillo, D. A.; Cabrera, A.; Florez, C.; Fraga, J.; Reyes Vega, J. A.; Rendón, C.; Rodriguez, M.; Ruales Barbosa, A. A.; Ruiz Alvarez, J. D.; Giljanovic, D.; Godinovic, N.; Lelas, D.; Sculac, A.; Kovac, M.; Petkovic, A.; Sculac, T.; Bargassa, P.; Brigljevic, V.; Chitroda, B. K.; Ferencek, D.; Jakovcic, K.; Starodumov, A.; Susa, T.; Attikis, A.; Christoforou, K.; Hadjiagapiou, A.; Leonidou, C.; Mousa, J.; Nicolaou, C.; Paizanos, L.; Ptochos, F.; Razis, P. A.; Rykaczewski, H.; Saka, H.; Stepennov, A.; Finger, M.; Finger, M.; Kveton, A.; Ayala, E.; Carrera Jarrin, E.; Abdalla, H.; Assran, Y.; El-mahdy, B.; Mahmoud, M. A.; Abdullah Al-Mashad, M.; Ehataht, K.; Kadastik, M.; Lange, T.; Nielsen, C.; Pata, J.; Raidal, M.; Tani, L.; Veelken, C.; Kirschenmann, H.; Osterberg, K.; Voutilainen, M.; Bharthuar, S.; Bin Norjoharuddeen, N.; Brücken, E.; Garcia, F.; Inkaew, P.; Kallonen, K. T. S.; Lampén, T.; Lassila-Perini, K.; Lehti, S.; Lindén, T.; Myllymäki, M.; Rantanen, M. M.; Siikonen, H.; Tuominiemi, J.; Luukka, P.; Petrow, H.; Besancon, M.; Couderc, F.; Dejardin, M.; Denegri, D.; Faure, J. L.; Ferri, F.; Ganjour, S.; Gras, P.; Hamel De Monchenault, G.; Kumar, M.; Lohezic, V.; Malcles, J.; Orlandi, F.; Portales, L.; Rosowsky, A.; Sahin, M. Ö.; Savoy-Navarro, A.; Simkina, P.
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