Search for Lepton-flavor VViolation in Z-boson Decays with [tau] Leptons with the ATLAS Detector
Author: ATLAS Collaboration CERN
Publisher:
Published: 2021
Total Pages: 0
ISBN-13:
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Author: ATLAS Collaboration CERN
Publisher:
Published: 2021
Total Pages: 0
ISBN-13:
DOWNLOAD EBOOKAuthor: ATLAS Collaboration CERN
Publisher:
Published: 2021
Total Pages: 0
ISBN-13:
DOWNLOAD EBOOKAuthor:
Publisher:
Published: 2018
Total Pages: 141
ISBN-13:
DOWNLOAD EBOOKAuthor: D. T. Pignotti
Publisher:
Published: 2014
Total Pages: 85
ISBN-13:
DOWNLOAD EBOOKThe 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 sqrt(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)
Author: Waruna Sri Fernando
Publisher:
Published: 2010
Total Pages: 110
ISBN-13:
DOWNLOAD EBOOKAbstract: We present a search for the lepton flavor violating decay Z->eu in proton-proton collisions at a center of mass energy of 7 TeV using approximately 3.1 pb−1 of data recorded with the ATLAS detector at the CERN large hadron collider. Candidate events have two isolated high p[tau] leptons (an electron and a muon), no jets, and little missing transverse energy. We observe no events with eu invariant mass above 60 GeV/c2. This demonstrates that we can suppress the eu background to a negligible level and are sensitive to exotic eu production. We set 95% confidence upper limit on the Z->eu branching ratio of 2.0 x 10−4.
Author:
Publisher:
Published: 2014
Total Pages:
ISBN-13:
DOWNLOAD EBOOKWe use the ATLAS detector at the Large Hadron Collider to search for the lepton flavor violating process Z→e[mu] in pp collisions using 20.3 fb-1 of data collected at √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. In conclusion, 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])
Author:
Publisher:
Published: 2014
Total Pages:
ISBN-13:
DOWNLOAD EBOOKWe use the ATLAS detector at the Large Hadron Collider to search for the lepton flavor violating process Z→e? in pp collisions using 20.3 fb-1 of data collected at √s=8 TeV. An enhancement in the e? 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 ??, significantly reducing the systematic uncertainty in the measurement. In conclusion, there is no evidence of an enhancement at the Z-boson mass, resulting in an upper limit on the branching fraction, B(Z→e?)7.5×10sup-7
Author: Hartger Weits
Publisher:
Published: 2016
Total Pages:
ISBN-13:
DOWNLOAD EBOOKAuthor: Diego Aristizabal Sierra
Publisher: Frontiers Media SA
Published: 2020-01-13
Total Pages: 293
ISBN-13: 2889633519
DOWNLOAD EBOOKThis eBook is a collection of articles from a Frontiers Research Topic. Frontiers Research Topics are very popular trademarks of the Frontiers Journals Series: they are collections of at least ten articles, all centered on a particular subject. With their unique mix of varied contributions from Original Research to Review Articles, Frontiers Research Topics unify the most influential researchers, the latest key findings and historical advances in a hot research area! Find out more on how to host your own Frontiers Research Topic or contribute to one as an author by contacting the Frontiers Editorial Office: frontiersin.org/about/contact.
Author:
Publisher:
Published: 2003
Total Pages: 7
ISBN-13:
DOWNLOAD EBOOKA search for the lepton-flavor-violating decay of the tau into three charged leptons has been performed using 91.5 fb−1 of data collected at an ee− center-of-mass energy of 10.58 GeV with the BABAR detector at the PEP-II storage ring. In all six decay modes considered, the numbers of events found in data are compatible with the background expectations. Upper limits on the branching fractions are set in the range (1-3) x 10−7 at 90% confidence level.