Электронный каталог

Статья

Hayrapetyan, A.
Search for Higgs Boson Pair Production with One Associated Vector Boson in Proton-Proton Collisions at *%s=13 TeV / A.Hayrapetyan, S.Afanasiev, D.Budkouski, I.Golutvin, I.Gorbunov, V.Karjavine, V.Korenkov, N.Krasnikov, A.Lanev, A.Malakhov, V.Matveev, V.Palichik, V.Perelygin, M.Savina, V.Shalaev, S.Shmatov, S.Shulha, V.Smirnov, O.Teryaev, N.Voytishin, B.S.Yuldashev, A.Zarubin, I.Zhizhin, Z.Tsamalaidze, [CMS Collab.] // Journal of High Energy Physics [Electronic resource]. – 2024. – Vol. 2024, No. 10. – P. 061. – URL: https://doi.org/10.1007/JHEP10(2024)061. – Bibliogr.: 88.

A search for Higgs boson pair (HH) production in association with a vector boson V (W or Z boson) is presented. The search is based on proton-proton collision data at a center-of-mass energy of 13 TeV, collected with the CMS detector at the LHC, corresponding to an integrated luminosity of 138 fb*−*1. Both hadronic and leptonic decays of V bosons are used. The leptons considered are electrons, muons, and neutrinos. The HH production is searched for in the bb^- bb^- decay channel. An observed (expected) upper limit at 95% confidence level of VHH production cross section is set at 294 (124) times the standard model prediction. Constraints are also set on the modifiers of the Higgs boson trilinear self-coupling, kλ, assuming k&sub(2V) = 1, and vice versa on the coupling of two Higgs bosons with two vector bosons, k&sub(2V). The observed (expected) 95% confidence intervals of these coupling modifiers are −37.7 < k&sub(λ) < 37.2 (−30.1 < k&sub(λ) < 28.9) and −12.2 < k&sub(2V) < 13.5 (−7.2 < k&sub(2V) < 8.9), respectively.



ОИЯИ = ОИЯИ (JINR)2024
Спец.(статьи,препринты) = С 346.2в - Взаимодействие протонов с протонами
Спец.(статьи,препринты) = С 346.6е2 - Промежуточные бозоны