[submitted] Journal of Physical Review D

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Search for the lepton flavor violating decay Z→eμ in pp collisions at √s = 8 TeV with the ATLAS detector
ATLAS Collaboration (Georges Aad (Marseille, CPPMet al.) Show all 2900 authors

Aug 25, 2014 - 6 pages

Abstract (arXiv)
The ATLAS detector at the Large Hadron Collider is used to search for the lepton flavor violating process Z→eμ in pp collisions using 20.3 fb−1 of data collected at s√ = 8 TeV. An enhancement in the eμ 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 μμ, 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→eμ) < 7.5 x 10−7 at the 95% confidence level.

Note: 6 pages plus author list + cover pages (19 pages total), 3 figures, 1 table, submitted to Phys. Rev. D, All figures including auxiliary figures are available at 
Keyword(s): INSPIRE: * Automatic Keywords * | lepton: flavor: violation | flavor: violation | lepton: flavor | Z0: mass | p p: scattering | enhancement | ATLAS | branching ratio | CERN LHC Coll | mass spectrum | topology


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Date: 22.09.2014 09:49:23 Count: 444