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Search for anomalous production of highly boosted Z bosons decaying to mu(+)mu(-) in proton-proton collisions at root s=7 TeV
CMS Collaboration
2013
发表期刊PHYSICS LETTERS B
卷号722期号:1--3页码:28-47
通讯作者Alverson, G (reprint author), Northeastern Univ, Boston, MA 02115 USA.
摘要Results are reported from a search for the anomalous production of highly boosted Z bosons with large transverse momentum and decaying to mu(+)mu(-). Such Z bosons may be produced in the decays of new heavy particles. The search uses pp collision data at root s = 7 TeV, corresponding to an integrated luminosity of 5.0 fb(-1) recorded with the CMS detector. The shape of the observed transverse momentum distribution of Z bosons is consistent with standard model expectations. Constraints are obtained on models predicting the production of excited quarks decaying via electroweak processes. Assuming a compositeness scale that is equal to the excited quark mass as well as transition coupling strengths between Z bosons and excited quarks that are equal to standard model couplings to quarks, masses of excited quarks below 1.94 TeV are excluded at the 95% confidence level. For excited quark production via a novel contact interaction, masses below 2.22 TeV are excluded, even if the excited quarks do not couple to gluons. (C) 2013 CERN. Published by Elsevier B.V. All rights reserved.
关键词PP COLLISIONS RESONANCES CMS
学科领域Physics
DOI10.1016/j.physletb.2013.03.037
收录类别SCI
语种英语
WOS类目Physics, Multidisciplinary
WOS记录号WOS:000318745300003
引用统计
被引频次:6[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/213529
专题粒子天体物理中心
作者单位中国科学院高能物理研究所
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CMS Collaboration. Search for anomalous production of highly boosted Z bosons decaying to mu(+)mu(-) in proton-proton collisions at root s=7 TeV[J]. PHYSICS LETTERS B,2013,722(1--3):28-47.
APA CMS Collaboration.(2013).Search for anomalous production of highly boosted Z bosons decaying to mu(+)mu(-) in proton-proton collisions at root s=7 TeV.PHYSICS LETTERS B,722(1--3),28-47.
MLA CMS Collaboration."Search for anomalous production of highly boosted Z bosons decaying to mu(+)mu(-) in proton-proton collisions at root s=7 TeV".PHYSICS LETTERS B 722.1--3(2013):28-47.
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