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Muon-pair and tau-pair production in two-photon collisions at LEP

Achard, P. and Favara, A. and Gataullin, M. and Newman, H. and Shevchenko, S. and Shvorob, A. and Xia, L. and Zhu, R. Y. (2004) Muon-pair and tau-pair production in two-photon collisions at LEP. Physics Letters B, 585 (1-2). pp. 53-62. ISSN 0370-2693. http://resolver.caltech.edu/CaltechAUTHORS:20170509-101211722

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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


Item Type:Article
Related URLs:
URLURL TypeDescription
https://doi.org/10.1016/j.physletb.2004.02.012DOIArticle
http://www.sciencedirect.com/science/article/pii/S0370269304002679PublisherArticle
https://arxiv.org/abs/hep-ex/0402037arXivDiscussion Paper
ORCID:
AuthorORCID
Newman, H.0000-0003-0964-1480
Zhu, R. Y.0000-0003-3091-7461
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.
Funders:
Funding AgencyGrant Number
Bundesministerium für Bildung, Wissenschaft, Forschung und Technologie (BMBF)UNSPECIFIED
National Natural Science Foundation of ChinaUNSPECIFIED
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 Tecnologı́aUNSPECIFIED
Universidad Nacional de La PlataUNSPECIFIED
Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET)UNSPECIFIED
Record Number:CaltechAUTHORS:20170509-101211722
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20170509-101211722
Official Citation:Muon-pair and tau-pair production in two-photon collisions at LEP, Physics Letters B, Volume 585, Issues 1–2, 8 April 2004, Pages 53-62, ISSN 0370-2693, https://doi.org/10.1016/j.physletb.2004.02.012. (http://www.sciencedirect.com/science/article/pii/S0370269304002679)
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:77296
Collection:CaltechAUTHORS
Deposited By: Ruth Sustaita
Deposited On:09 May 2017 20:51
Last Modified:12 May 2017 19:30

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