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Aad, Georges; Abbott, Brad; Abdallah, Jalal; Abdel Khalek, Samah; Abdinov, Ovsat Bahram oglu; Aben, Rosemarie; Abi, Babak; Abolins, Maris; AbouZeid, Hass; Abramowicz, Halina; Buanes, Trygve; Dale, Ørjan; Eigen, Gerald; Kastanas, Alex; Liebig, Wolfgang; Lipniacka, Anna; Martin dit Latour, Bertrand; Rosendahl, Peter Lundgaard; Sandaker, Heidi; Sjursen, Therese B.; Smestad, Lillian; Stugu, Bjarne; Ugland, Maren; Bugge, Lars; Bugge, Magnar Kopangen; Cameron, David Gordon; Catmore, James Richard; Czyczula, Zofia; Franconi, Laura; Gjelsten, Børge Kile ... view all 51 authors View less authors (2014)
Publisher: American Physical Society
Languages: English
Types: Article
muon electron, mass spectrum [electron muon], QC, 530, Physical Sciences, High Energy Physics - Experiment, Settore FIS/04 - Fisica Nucleare e Subnucleare, mass enhancement, CERN LHC Coll, Particle physics; LHC; Standard Model; Beyond Standard Model, 8000 GeV-cms, experimental results, :Matematikk og naturvitenskap: 400::Fysikk: 430::Kjerne- og elementærpartikkelfysikk: 431 [VDP], Science & Technology, Fysik, :Mathematics and natural scienses: 400::Physics: 430::Nuclear and elementary particle physics: 431 [VDP], Settore FIS/01 - Fisica Sperimentale, branching ratio: upper limit [Z0], 530 Physics--> Subjects: scattering [p p], flavor: violation [lepton], lepton flavor violating; pp collisions; ATLAS detector, leptonic decay [Z0], Particle Physics - Experiment, ATLAS, Z0 --> muon electron, mass spectrum [electron muon], QC, 530, Physical Sciences, High Energy Physics - Experiment, Settore FIS/04 - Fisica Nucleare e Subnucleare, mass enhancement, CERN LHC Coll, Particle physics; LHC; Standard Model; Beyond Standard Model, 8000 GeV-cms, experimental results, :Matematikk og naturvitenskap: 400::Fysikk: 430::Kjerne- og elementærpartikkelfysikk: 431 [VDP], Science & Technology, Fysik, :Mathematics and natural scienses: 400::Physics: 430::Nuclear and elementary particle physics: 431 [VDP], Settore FIS/01 - Fisica Sperimentale, branching ratio: upper limit [Z0], 530 Physics
ddc: ddc:530
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 $20.3~\textrm{fb}^{-1}$ of data collected at $\sqrt{s}= 8~\textrm{TeV}$. 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, $Z \rightarrow ee$ 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, ${\cal B}(Z~\rightarrow~e\mu)~<~7.5 \times 10^{-7}$ at the 95% confidence level.

The ATLAS detector at the Large Hadron Collider is used to search for the lepton flavor violating process Zeμ in pp collisions using 20.3fb-1 of data collected at s=8TeV. 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, Zee 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(Zeμ)<7.5×10-7 at the 95% confidence level.

The ATLAS detector at the Large Hadron Collider is used to search for the lepton flavor violating process $Z \rightarrow e \mu$ 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, $Z \rightarrow ee$ 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, $B(Z \rightarrow e \mu)$ < 7.5 x 10$^{-7}$ at the 95% confidence level.
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