298 articles – 2332 Notices  [english version]
 HAL : in2p3-00182289, version 1
 arXiv : 0710.1371
 Physical Review D 76 (2007) 111105
 Study of the Exclusive Initial-State-Radiation Production of the $D\bar{D}$ System
 BABAR Collaboration(s)
 (2007)
 A search for charmonium and other new states is performed in a study of exclusive initial-state-radiation production of D Dbar events from electron-positron annihilations at a center-of-mass energy of 10.58 GeV. The data sample corresponds to an integrated luminosity of 384 fb-1 and was recorded by the BABAR experiment at the PEP-II storage ring. The D Dbar mass spectrum shows clear evidence of the psi(3770) plus other structures near 3.9, 4.1, and 4.4 GeV/c^2. No evidence for Y(4260) -> D Dbar is observed, leading to an upper limit of B(Y(4260) -> D Dbar)/B(Y(4260) -> J/psi pi+ pi-) < 1.0 at 90 % confidence level.
 Thème(s) : Physique/Physique des Hautes Energies - Expérience
 Lien vers le texte intégral : http://fr.arXiv.org/abs/0710.1371
 in2p3-00182289, version 1 http://hal.in2p3.fr/in2p3-00182289 oai:hal.in2p3.fr:in2p3-00182289 Contributeur : Dominique Girod <> Soumis le : Jeudi 25 Octobre 2007, 13:57:46 Dernière modification le : Dimanche 30 Décembre 2007, 20:49:59