Abulencia, A;
Adelman, J;
Affolder, T;
Akimoto, T;
Albrow, MG;
Ambrose, D;
Amerio, S;
... CDF Collaboration; + view all
(2007)
Search for anomalous production of multilepton events in p$(p)over-bar-$ collisions at root s=1.96 TeV.
Physical Review Letters
, 98
(13)
, Article 131804. 10.1103/PhysRevLett.98.131804.
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Abstract
We report a search for the anomalous production of events with multiple charged leptons in p (p) over bar collisions at root s = 1.96 TeV using a data sample corresponding to an integrated luminosity of 346 pb(-1) collected by the CDF II detector at the Fermilab Tevatron. The search is divided into three-lepton and four-or-more-lepton data samples. We observe six events in the three-lepton sample and zero events in the >= 4-lepton sample. Both numbers of events are consistent with standard model background expectations. Within the framework of an R-parity-violating supergravity model, the results are interpreted as mass limits on the lightest neutralino (chi(0)(1)) and chargino (chi(+/-)(1)) particles. For one particular choice of model parameters, the limits are M(chi(0)(1))> 110 GeV/c(2) and M(chi(+/-)(1))> 203 GeV/c(2) at 95% confidence level; the variation of these mass limits with model parameters is presented.
| Type: | Article |
|---|---|
| Title: | Search for anomalous production of multilepton events in p$(p)over-bar-$ collisions at root s=1.96 TeV |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1103/PhysRevLett.98.131804 |
| Publisher version: | http://dx.doi.org/10.1103/PhysRevLett.98.131804 |
| Language: | English |
| Additional information: | This version is the version of record. For information on re-use, please refer to the publisher’s terms and conditions. |
| Keywords: | PARITY-VIOLATING SUPERSYMMETRY, E(+)E(-) COLLISIONS, PARTICLES, PHYSICS, SYMMETRY, DECAYS, MODEL |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy |
| URI: | https://discovery.ucl.ac.uk/id/eprint/131712 |
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