...
首页> 外文期刊>European physical journal >Search for a heavy vector resonance decaying to a ({mathrm{Z}}_{mathrm{}}^{mathrm{}}) ?boson and a Higgs boson in proton-proton collisions at (sqrt{s} = 13,ext {Te}ext {V} )
【24h】

Search for a heavy vector resonance decaying to a ({mathrm{Z}}_{mathrm{}}^{mathrm{}}) ?boson and a Higgs boson in proton-proton collisions at (sqrt{s} = 13,ext {Te}ext {V} )

机译:搜索到({ mathrm {z}} _ { mathrm {}} ^ { mathrm {}} )?Boson和Higgs Boson在质子 - 质子碰撞中( sqrt {s} = 13 , text {te} text {v} )

获取原文
           

摘要

A search is presented for a heavy vector resonance decaying into a $${mathrm{Z}}_{mathrm{}}^{mathrm{}}$$ Z boson and the standard model Higgs boson, where the $${mathrm{Z}}_{mathrm{}}^{mathrm{}}$$ Z boson is identified through its leptonic decays to electrons, muons, or neutrinos, and the Higgs boson is identified through its hadronic decays. The search is performed in a Lorentz-boosted regime and is based on data collected from 2016 to 2018 at the CERN LHC, corresponding to an integrated luminosity of 137 $$,ext {fb}^{-1}$$ fb - 1 . Upper limits are derived on the production of a narrow heavy resonance $${mathrm{{{mathrm{Z}}_{mathrm{}}^{mathrm{}}}}}_{mathrm{}}^{mathrm{prime }}$$ Z ′ , and a mass below 3.5 and 3.7 $$,ext {Te}ext {V}$$ Te is excluded at 95% confidence level in models where the heavy vector boson couples predominantly to fermions and to bosons, respectively. These are the most stringent limits placed on the Heavy Vector Triplet $${mathrm{{{mathrm{Z}}_{mathrm{}}^{mathrm{}}}}}_{mathrm{}}^{mathrm{prime }}$$ Z ′ model to date. If the heavy vector boson couples exclusively to standard model bosons, upper limits on the product of the cross section and branching fraction are set between 23 and 0.3 $$,ext {fb}$$ fb for a $${mathrm{{{mathrm{Z}}_{mathrm{}}^{mathrm{}}}}}_{mathrm{}}^{mathrm{prime }}$$ Z ′ mass between 0.8 and 4.6 $$,ext {Te}ext {V}$$ Te , respectively. This is the first limit set on a heavy vector boson coupling exclusively to standard model bosons in its production and decay.
机译:繁重的矢量共振衰减进入$$ { mathrm {z}} _ { mathrm {}} ^ { mathrm {}} $$ z boson和标准型号hggs boson,其中$$ { mathrm {z}} _ { mathrm {}} ^ { mathrm {}} $$ z boson通过其Leptonic衰减识别到电子,muON或Neutrinos,并且通过其辐射衰变鉴定Higgs玻色子。搜索在Lorentz升级的制度中执行,并且基于从2016年到2018年收集的数据在CERN LHC上,对应于137 $$ , text {fb} ^ {-1} $$ fb的集成光度 - 1。上限是在生产窄重的共振$$ { mathrm {{{{ mathrm {}} _ { mathrm {}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}} ^ { mathrm { prime}} $$ z',一个低于3.5和3.7 $$ , text {te} text {v} $$ te被排除在沉重的模型中的95%置信水平传染媒介玻色夫妇主要融入食环群体和玻色子。这些是放置在重向量三重$$最严格的限制{ mathrm {{{ mathrm {Z}} _ { mathrm {}} ^ { mathrm {}}}}} _ { mathrm {}} ^ { mathrm { prime}} $$ z'模型到目前为止。如果繁重的矢量玻色子专门耦合到标准模型磁共振,则横截面和分支分数的乘积的上限在23到0.3 $$ , text {fb} $$ fb for $$ { mathrm { {{ mathrm {Z}} _ { mathrm {}} ^ { mathrm {}}}}} _ { mathrm {}} ^ {0.8之间 mathrm {素}} $$ Z'4.6质量$$ , text {te} text {v} $$ te。这是在其生产和衰减中的标准模型玻斯的繁重矢量玻色子耦合上设置的第一限制。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号