Document Type
Article
Publication Title
Physics Letters B
Abstract
The invariance of the standard model (SM) under the CPT transformation predicts equality of particle and antiparticle masses. This prediction is tested by measuring the mass difference between the top quark and antiquark (Δmt=mt−mt‾) that are produced in pp collisions at a center-of-mass energy of 8 TeV, using events with a muon or an electron and at least four jets in the final state. The analysis is based on data corresponding to an integrated luminosity of 19.6 fb−1collected by the CMS experiment at the LHC, and yields a value of Δmt=−0.15±0.19(stat)±0.09(syst) GeV, which is consistent with the SM expectation. This result is significantly more precise than previously reported measurements.
DOI
10.1016/j.physletb.2017.04.028
Publication Date
2017
Recommended Citation
Baarmand, M M.; Dorney, B; Hohlmann, Marcus; Kalakhety, H; Yumiceva, Francisco X.; and CMS Collaboration, "Measurement Of The Mass Difference Between Top Quark And Antiquark In pp Collisions At s=8 TeV" (2017). Aerospace, Physics, and Space Science Faculty Publications. 88.
https://repository.fit.edu/apss_faculty/88