Achard, P. ; Adriani, O. ; Aguilar-Benitez, M. ; Gurtu, A. ; et., al (2004) Measurement of exclusive ρ+ρ- production in high-Q2 two-photon collisions at LEP Physics Letters B, 597 (1). pp. 26-38. ISSN 0370-2693
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Official URL: http://www.sciencedirect.com/science/article/pii/S...
Related URL: http://dx.doi.org/10.1016/j.physletb.2004.07.013
Abstract
Exclusive ρ+ρ- production in two-photon collisions involving a single highly-virtual photon is studied for the first time with data collected by the L3 experiment at LEP at centre-of-mass energies 89 < √ s < 209 GeV with a total integrated luminosity of 854.7 pb-1. The cross section of the process γγ*→ρ+ρ- is determined as a function of the photon virtuality, Q2, and the two-photon centre-of-mass energy, Wγγ, in the kinematic region: 1.2< Q2< 30 GeV2 and 1.1 < Wγγ<3GeV.The ρ+ρ- production cross section is found to be of the same magnitude as the cross section of the process γγ*→ρ0ρ0, measured in the same kinematic region by L3, and to have similar Wγγand Q2 dependences.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| ID Code: | 84029 |
| Deposited On: | 23 Feb 2012 12:06 |
| Last Modified: | 23 Feb 2012 12:06 |
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