Search for third-generation scalar leptoquarks in the tτ channel in proton-proton collisions at √s=8 TeV
Yazarlar (1)
Makale Türü Açık Erişim Özgün Makale (SSCI, AHCI, SCI, SCI-Exp dergilerinde yayınlanan tam makale)
Dergi Adı Journal of High Energy Physics (Q1)
Dergi ISSN 1029-8479 Dergi Bilgileri (2015)
Makale Dili İngilizce Basım Tarihi 07-2015
Cilt / Sayı / Sayfa 2015 / 7 / 1–44 DOI 10.1007/JHEP07(2015)042
Makale Linki https://hdl.handle.net/11424/245962
UAK Araştırma Alanları
Fen Bilimleri ve Matematik
Özet
A search for pair production of third-generation scalar leptoquarks decaying to top quark and τ lepton pairs is presented using proton-proton collision data at a center-ofmass energy of √s = 8 TeV collected with the CMS detector at the LHC and corresponding to an integrated luminosity of 19.7 fb−1. The search is performed using events that contain an electron or a muon, a hadronically decaying τ lepton, and two or more jets. The observations are found to be consistent with the standard model predictions. Assuming that all leptoquarks decay to a top quark and a τ lepton, the existence of pair produced, charge −1/3, third-generation leptoquarks up to a mass of 685 GeV is excluded at 95% confidence level. This result constitutes the first direct limit for leptoquarks decaying into a top quark and a τ lepton, and may also be applied directly to the pair production of bottom squarks decaying predominantly via the R-parity violating coupling λ´333
Anahtar Kelimeler
Beyond Standard Model | Hadron-Hadron Scattering