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

Bibliographic description

punktacja MNiSW [2014 A]: 35

title:	Search for the lepton flavor violating decay $Z \rightarrow e\mu$ in $\mathit{pp}$ 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