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H. Van Haevermaet; H. Delannoy; H. S. Chen; A. Spiezia; Z. Wang; M. A. Segura Delgado; K. Kadija; B. Mesic; M. Raidal; T. Lampén; M. Jo; C. Collard; J. Fay; L. Finco; A. L. Pequegnot; Z. Tsamalaidze; M. Lipinski; B. Wittmer; C. Contreras-Campana; F. Costanza; K. Lipka; Y. Wen; S. M. Heindl; S. Wayand; A. Makovec; D. K. Sahoo; A. Bhardwaj; L. M. Pant; T. Sarkar; S. Sharma; G. Selvaggi; A. Castro; P. Lenzi; L. Viliani; K. Pauwels; N. Cavallo; M. Margoni; A. Tiko; A. Braghieri; L. Fanò; F. Preiato; K. Shchelina; P. Traczyk; Y. C. Yang; Y. Go; S. Lee; S. K. Park; M. Shoaib; H. Bialkowska; M. Walczak; I. Gorbunov; S. Vavilov; V. Gavrilov; V. Stolin; J. Alcaraz Maestre; J. Marco; A. Martelli; J. Ngadiuba; U. Langenegger; J. Hoss; Y. H. Chang; S. S. Yu; A. Psallidas; S. Girgis; E. Gülmez; S. Atay; E. Clement; O. Davignon; D. Cieri; A.-M. Magnan; A. Tapper; N. Pastika; D. Gastler; J. Conway; C. Flores; M. Shi; F. Würthwein; G. Zevi Della Porta; M. Sun; S. R. Wagner; D. Quach; F. Chlebana; R. Lopes De Sá; L. Uplegger; H. Mei; K. Shi; S. Linn; K. F. Johnson; E. Tiras; A. Cocoros; G. S. F. Stephans; R. Kamalieddin; A. Hortiangtham; M. Velasco; A. Reinsvold; W. Luo; J. Sun; A. Khukhunaishvili; S. Kyriacou; C. Caillol
The European physical journal. C, Particles and fields, 09/2018, Letnik: 78, Številka: 9Journal Article
Abstract A search for pair production of heavy scalar leptoquarks (LQs), each decaying into a top quark and a $$\tau $$ τ lepton, is presented. The search considers final states with an electron or a muon, one or two $$\tau $$ τ leptons that decayed to hadrons, and additional jets. The data were collected in 2016 in proton–proton collisions at $$\sqrt{s}=13\,\text {Te}\text {V} $$ s=13Te with the CMS detector at the LHC, and correspond to an integrated luminosity of 35.9$$\,\text {fb}^{-1}$$ fb-1 . No evidence for pair production of LQs is found. Assuming a branching fraction of unity for the decay $$\mathrm {LQ} \rightarrow \mathrm {t}\tau $$ LQ→tτ , upper limits on the production cross section are set as a function of LQ mass, excluding masses below 900$$\,\text {Ge}\text {V}$$ Ge at 95% confidence level. These results provide the most stringent limits to date on the production of scalar LQs that decay to a top quark and a $$\tau $$ τ lepton.
