par Abreu, Pedro;Hoorelbeke, S.;Huet, Kathy;Lefebure, Véronique ;Lemonne, Jacques ;Tomaradze, A.;Vander Velde, Catherine ;Van Doninck, Walter;Verbeure, F;Wickens, John H. ;Bertrand, Daniel ;Bricman, Charles ;Cao, Futian;Chen, Max;Deghorain, A.;De Brabandere, S.;De Clercq, Catherine;Herquet, P. ; [et al.]
Référence Physics letters. Section B, 374, 4, page (351-361)
Publication Publié, 1996-05
Référence Physics letters. Section B, 374, 4, page (351-361)
Publication Publié, 1996-05
Article révisé par les pairs
Résumé : | A search for fully reconstructed Λ0b beauty baryons is performed using about 3 million Ζ decays collected with the DELPHI detector at LEP. The analysis relies on the combined use of the accurate tracking and of the hadron identification capabilities of DELPHI. A total of four events has been found, three in the Λ+cπ- channel and one in the Λ+ca-1 channel over a small background. The Λ0b beauty baryon mass is measured to be (5668 ± 16 (stat.) ± 8 (syst.)) MeV/c2. |