First results from the Selex Collaboration

✍ Scribed by M. Iori

• Book ID: 104355785
• Publisher: Elsevier Science
• Year: 1999
• Tongue: English
• Weight: 283 KB
• Volume: 75
• Category: Article
• ISSN: 0920-5632
• DOI: 10.1016/s0920-5632(99)00314-x

✦ Synopsis

The SELEX experiment (E781) is 3-stage magnetic spectrometer for a high statistics study of hadroproduction of charm baryons out to large xF using 650 Gev E-,Tr-and p beams. The main features of the spectrometer are: a high precision silicon vertex system ,powerful particle identification provided by TRD and RICH, forward As decay spectrometer and 3-stage lead glass photon detector. An experiment overview and description of spectrometer features are shown . Preliminary reconstructed charm states and results on Ac , D + particles and antiparticles produced by ~-,Tr-and p beams at XF > 0.3 are presented. Asymmetry for Ac production is also discussed .