Pair Production of Heavy Charged Gauge Bosons in pp Collisions at LHC

• Published in: Physica scripta Vol. 98; no. 9; pp. 95309 - 95321
• Main Authors: Ahmed, Ijaz, Khaliq, Fazal, Ashraf, M U, Khurshid, Taimoor, Muhammad, Jamil
• Format: Journal Article
• Language: English
• Published: IOP Publishing 01.09.2023
• Subjects: effective theory; heavy gauge boson; heavy W boson; LHC; proton Collider; tau leptons; TeV
• ISSN: 0031-8949; 1402-4896
• DOI: 10.1088/1402-4896/acef0a

Abstract Two oppositely charged new heavy gauge boson pair production at the Large Hadron Collider (LHC), is presented in this paper. These bosons are known as W ′ boson due to the reason that it is the heavy version of Standard Model’s weak force carrier, the W boson. The production cross section and decay width in proton-proton ( pp ) collision at s = 8 TeV are calculated for different masses and coupling strengths of W ′ . Efficiencies for different signal regions and branching ratios for different decay channels are computed. In this study, the pair production ( W ′ + W ′ − ) is considered in emerging new physics as a result of pp collision at s = 8 TeV at the LHC with final state containing two tau ( τ ) leptons and two neutrinos (each W ′ decay to τ and its neutrino). The event selection efficiency similar to the CMS experiment is used for the mass of W ′ to set lower limits for different coupling strengths of W ′ and, the obtained results are presented in this work. For heavy gauge bosons, when coupling strength is similar to that of Standard Model’s W boson, the mass of W ′ below 445 GeV are excluded at a confidence level of 95%.