2026-10-19T00:27:23Zhttps://ebyu-rdlopen.rawdatalibrary.net/oai/request

oai:ebyu-rdlopen.rawdatalibrary.net:ebyu/112462026-10-18T21:13:13Zopenairedrivercom_ebyu_10000col_ebyu_10001

Search for pair production of heavy particles decaying to a top quark and a gluon in the lepton+jets final state in proton–proton collisions at √s=13TeVDruzhkin, D.Borshch, V.Babaev, A.Uzunian, A.Slabospitskii, S.Konstantinov, D.Kachanov, V.Skovpen, Y.Radchenko, O.Kozyrev, A.Dimova, T.Blinov, V.Vorotnikov, G.Volkov, P.Savrin, V.Petrushanko, S.Perfilov, M.Obraztsov, S.Kodolova, O.Klyukhin, V.Dudko, L.Dubinin, M.Bunichev, V.Boos, E.Terkulov, A.Kirakosyan, M.Azarkin, M.Andreev, V.Polikarpov, S.Danilov, M.Chistov, R.Zhokin, A.Popov, V.Nikitenko, A.Lychkovskaya, N.Gavrilov, V.Ivanov, K.Aushev, T.Toropin, A.Tlisova, I.Krasnikov, N.Kirsanov, M.Kirpichnikov, D.Karneyeu, A.Golubev, N.Gninenko, S.Dermenev, A.Andreev, Yu.Vorobyev, A.Uvarov, L.AstrophysicsCharged particlesFighter aircraftGermanium compoundsParticle detectorsAntiquarksCMS detectorsFinal stateHeavy particlesPair productionProton proton collisionsSpin 1/2Top quarksTransverse momentaUpper limitsTellurium compoundsA search is presented for the pair production of new heavy resonances, each decaying into a top quark (t) or antiquark and a gluon (g). The analysis uses data recorded with the CMS detector from proton–proton collisions at a center-of-mass energy of 13TeV at the LHC, corresponding to an integrated luminosity of 138fb-1. Events with one muon or electron, multiple jets, and missing transverse momentum are selected. After using a deep neural network to enrich the data sample with signal-like events, distributions in the scalar sum of the transverse momenta of all reconstructed objects are analyzed in the search for a signal. No significant deviations from the standard model prediction are found. Upper limits at 95% confidence level are set on the product of cross section and branching fraction squared for the pair production of excited top quarks in the t∗→tg decay channel. The upper limits range from 120 to 0.8fb for a t∗with spin-1/2 and from 15 to 1.0fb for a t∗with spin-3/2. These correspond to mass exclusion limits up to 1050 and 1700GeV for spin-1/2 and spin-3/2 t∗particles, respectively. These are the most stringent limits to date on the existence of t∗→tg resonances. © CERN for the benefit of the CMS Collaboration 2025.Springer Nature2025Articlehttps://rdlopen.rawdatalibrary.net/r/ebyu/11246https://doi.org/10.1140/epjc/s10052-024-13729-y1434-6044enEuropean Physical Journal Cinfo:eu-repo/semantics/openAccessinfo:eu-repo/semantics/articlehttps://ebyu-rdlopen.rawdatalibrary.net/tr/items/ebyu/11246