Search for heavy resonances decaying into a Z or W boson and a Higgs boson in final states with leptons and b-jets in 139 fb−1 of pp collisions at $$ \sqrt{s} $$ = 13 TeV with the ATLAS detector

Search for heavy resonances decaying into a Z or W boson and a Higgs boson in final states with leptons and b-jets in 139 fb−1 of pp collisions at $$ \sqrt{s} $$ = 13 TeV with the ATLAS detector
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使用 ATLAS 探测器在 $$ sqrt{s} $$ = 13 TeV 处的 139 fbâ1 pp 碰撞中寻找衰变为最终态 Z 或 W 玻色子和希格斯玻色子的重共振

DOI:
10.1007/jhep06(2023)016
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发表时间:
2023
影响因子:
5.4
通讯作者:
Abusleme Hoffman, A. C.
Abusleme Hoffman, A. C.
中科院分区:
物理与天体物理2区
文献类型:
--
作者:
Aad, G.;Abbott, B.;Abbott, D. C.;Abeling, K.;Abidi, S. H.;Aboulhorma, A.;Abramowicz, H.;Abreu, H.;Abulaiti, Y.;Abusleme Hoffman, A. C.

文献摘要

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本文提出了一个新的共振衰减到Z或W玻色子和125 GeV的希格斯玻色子h的搜索,它的目标是,,或最终状态,其中ε = e或μ,在= 13 TeV的质子-质子碰撞。使用的数据对应于欧洲核子研究中心的ATLAS探测器在LHC运行2期间收集的总积分光度139 fb− 1。搜索进行检查重建不变或横向质量分布的Zh或Wh候选人的证据,局部过剩的质量范围从220 GeV至5 TeV。没有观察到显着的过剩和95%的置信水平上限之间的1.3 PB和0.3 FB放置在生产横截面乘以中性和带电自旋1共振和CP-奇数标量玻色子的分支分数。这些限制被转换成重矢量三重态模型和两个Higgs二重态模型的参数空间上的约束。
This article presents a search for new resonances decaying into a Z or W boson and a 125 GeV Higgs boson h, and it targets the,, orfinal states, where ℓ= e or μ, in proton-proton collisions at= 13 TeV. The data used correspond to a total integrated luminosity of 139 fb− 1 collected by the ATLAS detector during Run 2 of the LHC at CERN. The search is conducted by examining the reconstructed invariant or transverse mass distributions of Zh or Wh candidates for evidence of a localised excess in the mass range from 220 GeV to 5 TeV. No significant excess is observed and 95% confidence-level upper limits between 1.3 pb and 0.3 fb are placed on the production cross section times branching fraction of neutral and charged spin-1 resonances and CP-odd scalar bosons. These limits are converted into constraints on the parameter space of the Heavy Vector Triplet model and the two-Higgs-doublet model.