Search for a W ' boson decaying to a muon and a neutrino in pp collisions at root s=7 TeV

Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/53008

Title:	Search for a W ' boson decaying to a muon and a neutrino in pp collisions at root s=7 TeV
Authors:	Chatrchyan,S;Khachatryan,V;Sirunyan,AM;Tumasyan,A;Adam,W;Bergauer,T;Dragicevic,M;Ero,J;Fabjan,C;Friedl,M;Fruhwirth,R;...etc.
Contributors:	物理學系
Keywords:	VIOLATION;SYMMETRY
Date:	2011
Issue Date:	2012-06-11 10:53:43 (UTC+8)
Publisher:	國立中央大學
Abstract:	A new heavy gauge boson, W', decaying to a muon and a neutrino, is searched for in pp collisions at a centre-of-mass energy of 7 TeV. The data, collected with the CMS detector at the LHC, correspond to an integrated luminosity of 36 pb(-1). No significant excess of events above the standard model expectation is found in the transverse mass distribution of the muon-neutrino system. Masses below 1.40 TeV are excluded at the 95% confidence level for a sequential standard-model-like W'. The W' mass lower limit increases to 1.58 TeV when the present analysis is combined with the CMS result for the electron channel. (C) 2011 CERN. Published by Elsevier B.V. All rights reserved.
Relation:	PHYSICS LETTERS B
Appears in Collections:	[Department of Physics] journal & Dissertation

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