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Search for the lepton flavor violating decay Z?eµ in pp collisions at vs = 8 TeV with the ATLAS detector

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journal contribution
posted on 2023-06-09, 05:11 authored by Benedict AllbrookeBenedict Allbrooke, Lily AsquithLily Asquith, Alessandro CerriAlessandro Cerri, C A Chavez Barajas, Antonella De SantoAntonella De Santo, Fabrizio SalvatoreFabrizio Salvatore, I Santoyo Castillo, K Suruliz, Mark SuttonMark Sutton, Iacopo Vivarelli, The ATLAS Collaboration
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 vs=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)<7.5×10-7 at the 95% confidence level.

Funding

STFC Consolidated Grant Supplement; G1316; STFC-SCIENCE AND TECHNOLOGY FACILITIES COUNCIL; ST/M000753/1

History

Publication status

  • Published

File Version

  • Published version

Journal

Physical Review D

ISSN

2470-0010

Publisher

American Physical Society

Issue

7

Volume

90

Page range

2010

Department affiliated with

  • Physics and Astronomy Publications

Research groups affiliated with

  • Experimental Particle Physics Research Group Publications

Full text available

  • Yes

Peer reviewed?

  • Yes

Legacy Posted Date

2017-02-15

First Open Access (FOA) Date

2017-02-15

First Compliant Deposit (FCD) Date

2017-02-15

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