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. doi:10.1016/j.physletb.2004.02.012. https://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:

URL	URL Type	Description
https://doi.org/10.1016/j.physletb.2004.02.012	DOI	Article
http://www.sciencedirect.com/science/article/pii/S0370269304002679	Publisher	Article
https://arxiv.org/abs/hep-ex/0402037	arXiv	Discussion Paper

ORCID:

Author	ORCID
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 Agency	Grant Number
Bundesministerium für Bildung, Wissenschaft, Forschung und Technologie (BMBF)	UNSPECIFIED
National Natural Science Foundation of China	UNSPECIFIED
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	UNSPECIFIED
Universidad Nacional de La Plata	UNSPECIFIED
Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET)	UNSPECIFIED

Issue or Number:

1-2

DOI:

10.1016/j.physletb.2004.02.012

Record Number:

CaltechAUTHORS:20170509-101211722

Persistent URL:

https://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)

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ID Code:

77296

Collection:

CaltechAUTHORS

Deposited By:

Ruth Sustaita

Deposited On:

09 May 2017 20:51

Last Modified:

15 Nov 2021 17:29

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