Journal article
Isolated tau leptons in events with large missing transverse momentum at HERA
Physics letters. B, Vol.583(1-2), pp.41-58
03/11/2004
DOI: 10.1016/j.physletb.2003.12.054
Abstract
A search for events containing isolated tau leptons and large missing transverse momentum, not originating from the tau decay, has been performed with the ZEUS detector at the electron-proton collider HERA, using 130 pb(-1) of integrated luminosity. A search was made for isolated tracks coming from hadronic tau decays. Observables based on the internal jet structure were exploited to discriminate between tau decays and quark- or gluon-induced jets. Three tau candidates were found, while 0.40(-0.13)(+0.12) were expected from Standard Model processes, such as charged current deep inelastic scattering and single W+/- -boson production. To search for heavy-particle decays, a more restrictive selection was applied to isolate tau leptons produced together with a hadronic final state with high transverse momentum. Two candidate events survive, while 0.20 +/- 0.05 events are expected from Standard Model processes. (C) 2004 Published by Elsevier B.V.
Details
- Title: Subtitle
- Isolated tau leptons in events with large missing transverse momentum at HERA
- Creators
- ZEUS CollaborationJ Repond (Contributor)
- Resource Type
- Journal article
- Publication Details
- Physics letters. B, Vol.583(1-2), pp.41-58
- Publisher
- Elsevier
- DOI
- 10.1016/j.physletb.2003.12.054
- ISSN
- 0370-2693
- eISSN
- 1873-2445
- Number of pages
- 18
- Language
- English
- Date published
- 03/11/2004
- Academic Unit
- Physics and Astronomy
- Record Identifier
- 9984627224002771
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