Abstract
Proton-proton interactions resulting in final states with two photons are studied in a search for the signature of flavor-changing neutral current interactions of top quarks (t) and Higgs bosons (H). The analysis is based on data collected at a center-of-mass energy of 13 TeV with the CMS detector at the LHC, corresponding to an integrated luminosity of 137 fb-1. No significant excess above the background prediction is observed. Upper limits on the branching fractions (B) of the top quark decaying to a Higgs boson and an up (u) or charm (c) quark are derived through a binned fit to the diphoton invariant mass spectrum. The observed (expected) 95% confidence level upper limits are found to be 0.019% (0.031%) for B(t→Hu) and 0.073% (0.051%) for B(t→Hc). These are the strictest upper limits yet determined.
DOI Link
Publication Date
2022-07-15
Publication Title
Physical Review Letters
Volume
129
Issue
3
ISSN
0031-9007
Deposit Date
2026-07-08
Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 International License.
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Recommended Citation
CMS Collaboration., Tumasyan, A., Adam, W., Andrejkovic, J., Bergauer, T., Chatterjee, S., Dragicevic, M., Escalante Del Valle, A., Frühwirth, R., Jeitler, M., Krammer, N., Lechner, L., Liko, D., Mikulec, I., Paulitsch, P., Pitters, F., Schieck, J., Schöfbeck, R., Schwarz, D., Templ, S., Waltenberger, W., Wulz, C., Chekhovsky, V., Litomin, A., Makarenko, V., Darwish, M., De Wolf, E., Janssen, T., Kello, T., Lelek, A., & Rejeb Sfar, H. (2022) 'Search for Flavor-Changing Neutral Current Interactions of the Top Quark and Higgs Boson in Final States with Two Photons in Proton-Proton Collisions at s =13 TeV', Physical Review Letters, 129(3). Available at: 10.1103/PhysRevLett.129.032001