Ústav technické a experimentální fyziky Institute of Experimental and Applied Physics

Search for the lepton flavor violating decay Z -> e mu in pp collisions at root s=8 TeV with the ATLAS detector

NázevTitle
Search for the lepton flavor violating decay Z -> e mu in pp collisions at root s=8 TeV with the ATLAS detectorSearch for the lepton flavor violating decay Z -> e mu in pp collisions at root s=8 TeV with the ATLAS detector
Druh výsledkuResult type
Článek v časopiseJournal article
AutořiAuthors
G. Aad, B. Abbott, J. Abdallah, S. Abdel Khalek, O. Abdinov, K. Augsten, P. Gallus, J. Günther, J. Jakůbek, Z. Kohout, V. Král, M. Myška, S. Pospíšil, V. Šimák, T. Slavíček, K. Smolek, M. Solar, J. Šolc, A. Sopczak, B. Sopko, V. Sopko, D. Tureček, V. Vacek, M. Šuta, P. Vokáč, Z. Vykydal, M. Zeman, M. Suk
DOIDOI
10.1103/PhysRevD.90.072010
Časopis / citaceJournal / citation
Physical Review D. 2014, 90(7), 072010-1-072010-19. ISSN 1550-7998.
RokYear
2014
JazykLanguage
eng
WoSWoS
000344018700001
ScopusScopus
2-s2.0-84908571022
RIVRIV
RIV/68407700:21220/14:00226994!RIV15-MSM-21220___
ProjektProject
Mezinárodní experiment ATLAS-CERNInternational experiment ATLAS-CERN; Podpora zkvalitnění týmů výzkumu a vývoje a rozvoj intersektorální mobility na ČVUT v PrazeSupport of inter-sectoral mobility and quality enhancement of research teams at Czech Technical University in Prague

AbstraktAbstract

The ATLAS detector at the Large Hadron Collider is used to search for the lepton flavor violating process Z -> e mu in pp collisions using 20.3 fb(-1) of data collected at root 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 -> ee and 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, B(Z -> e mu) < 7.5 x 10(-7) at the 95% confidence level.

The ATLAS detector at the Large Hadron Collider is used to search for the lepton flavor violating process Z -> e mu in pp collisions using 20.3 fb(-1) of data collected at root 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 -> ee and 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, B(Z -> e mu) < 7.5 x 10(-7) at the 95% confidence level.