Search for the lepton flavor violating decay Z \rightarrow e\mu in pp collisions at \sqrt{s}=8 TeV with the ATLAS detector

Search for the lepton flavor violating decay Z ...

punktacja MNiSW [2014 A]: 35

title:	Search for the lepton flavor violating decay Z \rightarrow e\mu in pp collisions at \sqrt{s}=8 TeV with the ATLAS detector
author:	Pałka Marek
contributor:	Współautorami artykułu są członkowie ATLAS Collaboration w liczbie 2901
institution:	ATLAS Collaboration
Journal title:	Physical Review. D, Particles, Fields, Gravitation, and Cosmology
volume:	90
issue:	7
date of publication:	2014
article ID:	072010
ISSN:	1550-7998
eISSN:	1550-2368
DOI:	10.1103/PhysRevD.90.072010
language:	English
Journal language:	English
abstract in english:	The ATLAS detector at the Large Hadron Collider is used to search for the lepton flavor violating process Z \rightarrow e\mu in pp collisions using 20.3 fb^{-1} of data collected at \sqrt{s}=8 TeV. An enhancement in the e\mu invariant mass spectrum is searched for at the Z-boson mass. The number of Z bosons produced in the data sample is estimated using events of similar topology, Z \rightarrow ee, \mu \mu, significantly reducing the systematic uncertainty in the measurement. There is no evidence of an enhancement at the Z-boson mass, resulting in an upper limit on the branching fraction, \beta(Z\rightarrow e\mu)<7.5 \times 10^{-7} at the 95% confidence level.
number of pulisher's sheets:	1
affiliation:	Wydział Fizyki, Astronomii i Informatyki Stosowanej : Instytut Fizyki im. Mariana Smoluchowskiego
type:	journal article
subtype:	academic paper