Search for Higgs boson and observation of &lt;em&gt;Z&lt;/em&gt; boson through their decay into a charm quark-antiquark pair in boosted topologies in proton-proton collisions at √&lt;em&gt;s&lt;/em&gt; = 13 Tev

Tumasyan, A.; Adam, W.; Andrejkovic, J.W.; Bergauer, T.; Chatterjee, S.; Damanakis, K.; Dragicevic, M.; Escalante Del Valle, A.; Hussain, P.S.; Jeitler, M.; Caminada, L.; Ebrahimi, A.; Erdmann, W.; Horisberger, R.; Ingram, Q.; Kaestli, H.C.; Kotlinski, D.; Lange, C.; Missiroli, M.; Noehte, L.; Rohe, T.; Zhokin, A.

doi:10.1103/PhysRevLett.131.041801

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

Tumasyan A, Adam W, Andrejkovic JW, Bergauer T, Chatterjee S, Damanakis K, Dragicevic M, Escalante Del Valle A, Hussain PS, Jeitler M, Caminada L, Ebrahimi A, Erdmann W, Horisberger R, Ingram Q, Kaestli HC, Kotlinski D, Lange C, Missiroli M, Noehte L, Rohe T, Zhokin A, et al.

Citation

Tumasyan, A., Adam, W., Andrejkovic, J. W., Bergauer, T., Chatterjee, S., Damanakis, K., … Zhokin, A. (2023). 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. Physical Review Letters, 131(4), 041801 (21 pp.). https://doi.org/10.1103/PhysRevLett.131.041801

Persistent URL https://www.dora.lib4ri.ch/psi/islandora/object/psi:55821

A search for the standard model (SM) Higgs boson (H) produced with transverse momentum (p_T) greater than 450 GeV and decaying to a charm quark-antiquark (c^-c) 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 → c^-c 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 → c^-c decay process, which is observed in association with jets at high p_T for the first time with a signal strength of 1.00^+0.17_-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 σ(H)B(H → c^-c) is set at 47 (39) times the SM prediction at 95% confidence level.

Details

Publication Type

Journal Article

Title

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

Author(s)

Tumasyan, A.

Adam, W.

Andrejkovic, J.W.

Bergauer, T.

Chatterjee, S.

Damanakis, K.

Dragicevic, M.

Escalante Del Valle, A.

Hussain, P.S.

Jeitler, M.

Caminada, L. (3202 High Energy Particle Physics)