Search for the lepton flavor violating decay Z→eμ in pp collisions at $\sqrt{s}$  TeV with the ATLAS detector

ATLAS COLLABORATION (GEORGES AAD, MARIA JOSEFINA ALCONADA VERZINI ET AL.).

PHYSICAL REVIEW D

AMER PHYSICAL SOC

Lugar: New York; Año: 2014

1550-7998

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)