2016/12/31 by V. Khachatryan, CMS Collaboration, A. M. Sirunyan +98 · 1 citation
Physics and Astronomy · #Boson #Branching fraction #Dark Matter and Cosmic Phenomena #Electron #Lepton #Leptoquark #Missing energy #Neutrino #Neutrino Physics Research #Nuclear physics #Particle physics #Particle physics theoretical and experimental studies #Physics #Physics beyond the Standard Model #Standard Model (mathematical formulation) #hep-ex
paper · pdf · doi:10.1007/jhep03(2017)077
published as JHEP 03 (2017) 077 · Replaced with the published version. Added the journal reference and DOI. All the figures and tables can be found at http://cms-results.web.cern.ch/cms-results/public-results/publications/EXO-16-016/index.html
openalex created_date 2016/12/16 · openalex publication_date 2017/03/01 · arxiv created 2017/03/18 · arxiv updated 2017/03/21 · openalex updated_date 2026/08/05
A search for new particles has been conducted using events with two high transverse momentum (p T ) leptons that decay hadronically, at least two high-p T jets, and missing transverse energy from the lepton decays. The analysis is performed using data from proton-proton collisions, collected by the CMS experiment in 2015 at s = 13 TeV, corresponding to an integrated luminosity of 2.1 fb -1 . The results are interpreted in two physics models. The first model involves heavy right-handed neutrinos, N ( = e, , ), and right-handed charged bosons, W R , arising in a left-right symmetric extension of the standard model. Masses of the W R boson below 2.35 (1.63) TeV are excluded at 95% confidence level, assuming the N mass is 0.8 (0.2) times the mass of the W R boson and that only the N flavor contributes to the W R decay width. In the second model, pair production of third-generation scalar leptoquarks that decay into bb is considered. Third-generation scalar leptoquarks with masses below 740 GeV are excluded, assuming a 100% branching fraction for the leptoquark decay to a lepton and a bottom quark. This is the first search at hadron colliders for the third-generation Majorana neutrino, as well as the first search for third-generation leptoquarks in the final state with a pair of hadronically decaying leptons and jets.