Measurements of $t\overline tH$ Production and the CP Structure of the Yukawa Interaction between the Higgs Boson and Top Quark in the Diphoton Decay Channel

The first observation of the t t ¯ H process in a single Higgs boson decay channel with the full reconstruction of the final state ( H → γγ ) is presented, with a significance of 6.6 standard deviations ( σ ). The CP structure of Higgs boson couplings to fermions is measured, resulting in an exclusi...

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Veröffentlicht in:	Physical review letters 2020-08, Vol.125 (6)
Hauptverfasser:	Bruno, G., David, P., Chen, H. S., Vanegas Arbelaez, N., Ather, M. W., Lindén, T., Tuominen, E., Lobanov, A., Carle, A., Fay, J., Mirabito, L., Perries, S., Tsamalaidze, Z., Pauls, A., Mukherjee, S., Schmidt, A., Nowack, A., Borras, K., Krücker, D., Mankel, R., Pitzl, D., Aggleton, R., Schleper, P., Iqbal, M. A., Schröder, M., Manousakis-katsikakis, A., Czellar, S., Szillasi, Z., Ahmed, A., Saha, G., Shukla, P., Naseri, M., Felcini, M., Radogna, R., Ciocca, C., Latino, G., Mulargia, R., Bisello, D., Venturi, A., Park, J., Cho, S., Castilla-Valdez, H., Oropeza Barrera, C., Khan, W. A., Bunin, P., Lychkovskaya, N., Danilov, M., Iuzhakov, A., Tcherniaev, E., Dordevic, M., Hernandez, J. M., Fernandez, M., Vila, I., Davignon, O., Lecoq, P., Salfeld-Nebgen, J., Calandri, A., Meinhard, M. T., Zhu, D. H., Tekten, S., Komurcu, Y., Grynyov, B., Bell, K. W., Newbold, D. M., Colling, D., Bartek, R., Gleyzer, S. V., Pellett, D., Wang, Z., Wimpenny, S., Deelen, N., Bhandari, R., Anderson, D., Xie, S., Zhang, Z., Cumalat, J. P., Ryd, A., Cheung, H. W. K., Green, D., Liu, M., McBride, P., Smith, N., Matchev, K., Adams, T., Viinikainen, J., Khristenko, V., Onel, Y., Hung, W. T., Bylinkin, A., Paus, C., Claes, D. R., Bueghly, J., Gunter, T., Jessop, C., Piperov, S., Ranken, E., Huang, T., Peltola, T., Pinna, D., Ruggles, T.
Format:	Artikel
Sprache:	eng
Schlagworte:	Higgs bosons Particle production Photons PHYSICS OF ELEMENTARY PARTICLES AND FIELDS Top quark
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