par Abdallah, Jalal Mohamad J.;Alderweireld, Thomas;Bertrand, Daniel 
;D'Hondt, Jorgen;De Clercq, Catherine;Lemonne, Jacques ;Pukhaeva, Nelli;Wickens, John H. ; [et al.]
Référence Physics letters. Section B, 634, 4, page (340-346)
Publication Publié, 2006-03
;D'Hondt, Jorgen;De Clercq, Catherine;Lemonne, Jacques ;Pukhaeva, Nelli;Wickens, John H. ; [et al.]Référence Physics letters. Section B, 634, 4, page (340-346)
Publication Publié, 2006-03
Article révisé par les pairs
| Résumé : | The pseudoscalar meson ηb has been searched for in two-photon interactions at LEP II. The data sample corresponds to a total integrated luminosity of 617 pb-1 at centre-of-mass energies ranging from 161 to 209 GeV. Upper limits at a confidence level of 95% on the product Γγγ(ηb)×BR(ηb) are 190, 470 and 660 eV/c2 for the ηb decaying into 4, 6 and 8 charged particles, respectively. |
