A search for high-mass resonances decaying to τ+τ- in pp collisions at √s=7 TeV with the ATLAS detector
A search for high-mass resonances decaying to τ+τ- in pp collisions at √s=7 TeV with the ATLAS detector
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DOI：
10.1016/j.physletb.2013.01.040
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发表时间：
2013-02-26
影响因子：
4.4
通讯作者：
Zwalinski, L.
中科院分区：
文献类型：
--
作者：
Aad, G.;Abajyan, T.;Zwalinski, L.
这封信提出了一个搜索的高质量共振衰减到tau（+）tau（-）的最终状态使用质子质子碰撞在根s = 7 TeV的大型强子对撞机产生的。这些数据是用ATLAS探测器记录的，对应的积分光度为4.6 fb（-1）。没有观察到统计学上显著超过标准模型预期; 95%的可信度上限设定在衰减为τ（+）τ（-）对的Z'共振的横截面时间分支分数上，作为共振质量的函数。因此，序列标准模型中质量小于1.40 TeV的Z'玻色子被排除在95%的可信度之外。(c)2013年CERN。Elsevier B. V.出版，保留所有权利。
This Letter presents a search for high-mass resonances decaying into tau(+)tau(-) final states using proton-proton collisions at root s = 7 TeV produced by the Large Hadron Collider. The data were recorded with the ATLAS detector and correspond to an integrated luminosity of 4.6 fb(-1). No statistically significant excess above the Standard Model expectation is observed; 95% credibility upper limits are set on the cross section times branching fraction of Z' resonances decaying into tau(+)tau(-) pairs as a function of the resonance mass. As a result, Z' bosons of the Sequential Standard Model with masses less than 1.40 TeV are excluded at 95% credibility. (c) 2013 CERN. Published by Elsevier B.V. All rights reserved.