362 articles – 2926 Notices  [english version]
 HAL : in2p3-00022491, version 1
 arXiv : hep-ph/0001278
 production of bound triplet mu+ mu- system in collisions of electrons with atoms.
 (2000)
 This paper deals with the production of orthodimuonium (OM) ($\mu^{+} \mu^{-}$ atom in triplet state) in collisions of high-energy electrons with nuclei or atoms. This reaction was previously studied by Holvik and Olsen [Phys. Rev. D 35, 2124 (1987)] on the basis of a bremsstrahlung mechanism where OM is produced by only one virtual photon. In the present paper we consider a competing three-photon mechanism where the production of OM results from the collision of a photon generated by the electron with two photons emitted by the nucleus. We derive the corresponding spectrum and production rate of OM and show that the three-photon mechanism is the dominant one for heavy atom target.
 Thème(s) : Physique/Physique des Hautes Energies - Expérience
 Lien vers le texte intégral : http://fr.arXiv.org/abs/hep-ph/0001278
 in2p3-00022491, version 1 http://hal.in2p3.fr/in2p3-00022491 oai:hal.in2p3.fr:in2p3-00022491 Contributeur : Jean-Michel Levy <> Soumis le : Mardi 30 Mai 2000, 14:04:37 Dernière modification le : Mardi 30 Mai 2000, 14:04:37