Published April 8, 2004
| Version Published + Submitted
Journal Article
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Muon-pair and tau-pair production in two-photon collisions at LEP
Abstract
The QED processes e^+e^−→e^+e^−μ^+μ^− and e^+e^−→e^+e^−τ^+τ^− are studied with the L3 detector at LEP using an untagged data sample collected at centre-of-mass energies 161 GeV⩽√s⩽209 GeV. The τ-pairs are observed through the associated decay of one τ into eνν and the other into ππν. The cross sections are measured as a function of √s. For muon pairs, the cross section of the γγ→μ^+μ^− process is also measured as a function of the two-photon centre-of-mass energy for 3 GeV⩽W_(γγ)⩽40 GeV. Good agreement is found between these measurements and the
Additional Information
© 2004 Published by Elsevier B.V. Received 3 December 2003, Revised 29 January 2004, Accepted 4 February 2004, Available online 24 February 2004. Editor: L. Rolandi Supported by the German Bundesministerium für Bildung, Wissenschaft, Forschung und Technologie. Supported by the National Natural Science Foundation of China. Supported by the Hungarian OTKA fund under contract numbers T019181, F023259 and T037350. Also supported by the Hungarian OTKA fund under contract number T026178. Supported also by the Comisión Interministerial de Ciencia y Tecnologı́a. Also supported by CONICET and Universidad Nacional de La Plata, CC 67, 1900 La Plata, Argentina. Charge conjugate processes are included throughout this Letter.Attached Files
Published - 1-s2.0-S0370269304002679-main.pdf
Submitted - 0402037.pdf
Files
0402037.pdf
Additional details
Identifiers
- Eprint ID
- 77296
- Resolver ID
- CaltechAUTHORS:20170509-101211722
Related works
- Describes
- https://arxiv.org/abs/hep-ex/0402037 (URL)
Funding
- Bundesministerium für Bildung, Wissenschaft, Forschung und Technologie (BMBF)
- National Natural Science Foundation of China
- Hungarian Scientific Research Fund (OTKA)
- T019181
- Hungarian Scientific Research Fund (OTKA)
- F023259
- Hungarian Scientific Research Fund (OTKA)
- T037350
- Hungarian Scientific Research Fund (OTKA)
- T026178
- Comisión Interministerial de Ciencia y Tecnologı́a
- Universidad Nacional de La Plata
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET)
Dates
- Created
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2017-05-09Created from EPrint's datestamp field
- Updated
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2021-11-15Created from EPrint's last_modified field