Search for a cH signal in the associated production of at least one charm quark with a Higgs boson in the diphoton decay channel in pp collisions at $$\sqrt{s}=13$$ TeV

A bstract This paper presents the first search for a cH signal sensitive to the coupling of the charm quark (c) to the Higgs boson (H) in the associated production of at least one charm quark with a Higgs boson decaying to two photons. The results are based on a data set of proton-proton collisions at a center-of-mass energy of 13 TeV collected with the CMS experiment at the LHC, corresponding to an integrated luminosity of 138 fb − 1 . Assuming the standard model (SM) rates for all other Higgs boson production processes, the observed (expected) upper limit at 95% confidence level on the cH signal strength is 243 (355) times the SM prediction. Under the same assumption, the observed (expected) allowed interval on the Higgs boson to charm quark coupling modifier, κ c , is |κ c | < 38 . 1 ( |κ c | < 72 . 5) at 95% confidence level.

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Journal
Journal of High Energy Physics
Published
2025-11-12
DOI
https://doi.org/10.1007/jhep11(2025)060
Citations
1
Primary Topic
Particle physics theoretical and experimental studies
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article
Field-Weighted Citation Impact
1.87
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article

Search for a cH signal in the associated production of at least one charm quark with a Higgs boson in the diphoton decay channel in pp collisions at $$\sqrt{s}=13$$ TeV

M. A. Ciocci, S. Polikarpov, A. Vilela Pereira, K. Rabbertz et al.
1 citations
Journal of High Energy Physics
Particle physics theoretical and experimental studies
1.87
article

Search for a cH signal in the associated production of at least one charm quark with a Higgs boson in the diphoton decay channel in pp collisions at $$\sqrt{s}=13$$ TeV

M. A. Ciocci, S. Polikarpov, A. Vilela Pereira, K. Rabbertz, G. Cummings, V. Brigljević, M. M. A. Gadallah, J. Lidrych, P. Azzurri, B. Hacışahinoğlu, V. D’Amante, Lovisa Rygaard, I. Lomidze, B. Blumenfeld, K. Piotrzkowski, H. Oğul, Aashay Arora, A. Lapertosa, G. Sorrentino, M. Horzela, A. Mecca, K. Shchelina, S. H. Kim, A. Tarabini, B. Akgün, M. Stamenkovic, M. Presilla, A. Reimers, A. Rosowsky, K. Lamichhane, Daniil Rastorguev, M. Murray, S. Mishra, I. Dutta, S. Sánchez Cruz, R. Klanner, A. Grohsjean, A. Dierlamm, A. Escalante Del Valle, Y. Lai, F. De Guio, Alexander Jung, J. Luo, F. Ivone, E. Asilar, P. K. Behera, Huaqiao Zhang, S. Xie, J. Vazquez Escobar, D. Vats, I. Laflotte, J. Park, F. Wittig, C. Madrid, Ali Khalilzadeh, W. Waltenberger, D. Budkouski, J. Reichert, M. Nickel, G. Adamov, A. Lintuluoto, S. Chenarani, C. Uribe Estrada, Anne-Catherine Le Bihan, H. Bandyopadhyay, M. Senger, A. Frankenthal, P. Everaerts, J. D. Ruiz Alvarez, B. D’Anzi, S. Perriès, M. 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Ferenček, K. Androsov, V. Borshch, C. Matthies, P. Dini, C. Oropeza Barrera, P. R. Pujahari, A. Muhammad, S. Sen, S. Rappoccio, A. R. Kanuganti, G. Gómez, E. Migliore, S. Sagir, L. Forthomme, S. Mrenna, E. Gurpinar Guler, N. Lychkovskaya, S. Donato, R. Castaldi, E. Yigitbasi, K. Christoforou, J. Tao, S. Chatterjee, L. Lista, E. Palencia Cortezón, C. Beirão Da Cruz E Silva, D. Ciangottini, A. Staiano, K. Doroba, L. Fiore, A. Cardini, A. Stepennov, Sushil Chauhan, P. Das, Bogdan Wiederspan, G. Da Molin, Martina Manoni, Jost Von Den Driesch, A. Williams, Di Wang, H. Wang, Z. Lin, Sw. Banerjee, Chongyun Jiang, Jingqing Zhang, Amandeep Kaur, A. Mascellani, M. Kirsanov, Y. Yao
article en
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Abstract

A bstract This paper presents the first search for a cH signal sensitive to the coupling of the charm quark (c) to the Higgs boson (H) in the associated production of at least one charm quark with a Higgs boson decaying to two photons. The results are based on a data set of proton-proton collisions at a center-of-mass energy of 13 TeV collected with the CMS experiment at the LHC, corresponding to an integrated luminosity of 138 fb − 1 . Assuming the standard model (SM) rates for all other Higgs boson production processes, the observed (expected) upper limit at 95% confidence level on the cH signal strength is 243 (355) times the SM prediction. Under the same assumption, the observed (expected) allowed interval on the Higgs boson to charm quark coupling modifier, κ c , is |κ c | < 38 . 1 ( |κ c | < 72 . 5) at 95% confidence level.

Journal of High Energy PhysicsVol. 2025(11)
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