论文标题

LHC的$ PP $ Collisions中的重型充电量玻色子的配对生产

Pair production of heavy charged gauge bosons in $pp$ collisions at LHC

论文作者

Ahmed, Ijaz, Khaliq, Fazal, Ashraf, M. U., Khurshid, Taimoor, Muhammad, Jamil

论文摘要

本文介绍了大型强子对撞机(LHC)的两个相反带电的新型重量表对生产。这些玻色子被称为$ w^{'} $玻色子,因为它是标准型号的弱力载体$ W $ boson的重型版本。在\ sqrts〜 = 8 tev proton-proton($ pp $)碰撞中的生产横截面和衰减宽度是针对不同质量和$ w^{'} $的不同质量和耦合强度计算的。计算了不同信号区域的效率和不同衰减通道的分支比率。在这项研究中,这对生产($ w^{'^{+}} w^{'^{ - }} $在\ sqrts〜 = 8 tev的$ pp $ collision的结果中考虑了新的物理,而LHC的最终状态为lhc,最终包含两个tau($τ$)$ neutrin和$ ws $ w^$ neutrin $ w^'$ W^''$ W^'''中微子)。类似于CMS实验的事件选择效率用于$ W^{'} $的质量,以设置$ w^{'} $不同耦合强度的下限,并在这项工作中显示了结果。对于重量规玻色子,当耦合强度与Standard Model的$ W $ BOSON相似时,$ W^{'} $的质量低于305 GEV,以$ 95 \%$的置信度排除。

Two opposite 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 \sqrts~= 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 \sqrts~= 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 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 305 GeV are excluded at confidence level of $95\%$.

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