Search for Resonant and Nonresonant Production of Pairs of Dijet Resonances in Proton-Proton Collisions at √s = 13 TeV
Journal of High Energy Physics 2023
Kārlis Dreimanis, Antra Gaile, Andris Potrebko, Toms Torims, Viesturs Veckalns, CMS Collaboration

A search for pairs of dijet resonances with the same mass is conducted in final states with at least four jets. Results are presented separately for the case where the four jet production proceeds via an intermediate resonant state and for nonresonant production. The search uses a data sample corresponding to an integrated luminosity of 138 fb−1−1 collected by the CMS detector in proton-proton collisions at ss ​ = 13 TeV. Model-independent limits, at 95% confidence level, are reported on the production cross section of four-jet and dijet resonances. These first LHC limits on resonant pair production of dijet resonances via high mass intermediate states are applied to a signal model of diquarks that decay into pairs of vector-like quarks, excluding diquark masses below 7.6 TeV for a particular model scenario. There are two events in the tails of the distributions, each with a four-jet mass of 8 TeV and an average dijet mass of 2 TeV, resulting in local and global significances of 3.9 and 1.6 standard deviations, respectively, if interpreted as a signal. The nonresonant search excludes pair production of top squarks with masses between 0.50 TeV to 0.77 TeV, with the exception of a small interval between 0.52 and 0.58 TeV, for supersymmetric R-parity-violating decays to quark pairs, significantly extending previous limits. Here, the most significant excess above the predicted background occurs at an average dijet mass of 0.95 TeV, for which the local and global significances are 3.6 and 2.5 standard deviations, respectively.

Atslēgas vārdi
Hadron-Hadron Scattering Beyond the Standard Model Jet Physics

The CMS Collaboration, A.Tumasyan, K.Dreimanis, A.Gaile, A.Potrebko, T.Torims, V.Veckalns ... [et al.]. Search for Resonant and Nonresonant Production of Pairs of Dijet Resonances in Proton-Proton Collisions at √s = 13 TeV. Journal of High Energy Physics, 2023, Vol. 2023, No. 7, Article number 161. e-ISSN 1029-8479. Pieejams: doi:10.1007/JHEP07(2023)161

Publikācijas valoda
English (en)
RTU Zinātniskā bibliotēka.
E-pasts:; Tālr: +371 28399196