Электронный каталог

Статья

Tumasyan, A.
Search for Higgs Boson and Observation of Z Boson through Their Decay into a Charm Quark-Antiquark Pair in Boosted Topologies in Proton-Proton Collisions at *% s = 13 TeV / A.Tumasyan, S.Afanasiev, D.Budkouski, I.Golutvin, I.Gorbunov, V.Karjavine, V.Korenkov, 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, N.Krasnikov, A.Khvedelidze, Z.Tsamalaidze, [CMS Collab.] // Physical Review Letters [Electronic resource]. – 2023. – Vol.131, No.4. – P. 041801. – URL: https://doi.org/10.1103/PhysRevLett.131.041801. – Bibliogr.: 88.

A search for the standard model (SM) Higgs boson (𝐻) produced with transverse momentum (p&sub(T)) greater than 450 GeV and decaying to a charm quark-antiquark (cc^-) pair is presented. The search is performed using proton-proton collision data collected at *%s = 13  TeV by the CMS experiment at the LHC, corresponding to an integrated luminosity of 138  fb*−*1. Boosted H *> cc^-⁢ decay products are reconstructed as a single large-radius jet and identified using a deep neural network charm tagging technique. The method is validated by measuring the Z *> cc^- decay process, which is observed in association with jets at high p&sub(T) for the first time with a signal strength of 1.00&sup(+0.17)&sub(−0.14)⁢(syst)*(0.08⁢(theo)*(0.06⁢(stat), defined as the ratio of the observed process rate to the SM expectation. The observed (expected) upper limit on *s(H)B(H *> cc^-)) is set at 47 (39) times the SM prediction at 95% confidence level.



Спец.(статьи,препринты) = С 346.2в - Взаимодействие протонов с протонами
Спец.(статьи,препринты) = С 346.6е2 - Промежуточные бозоны
ОИЯИ = ОИЯИ (JINR)2023