First results from the Selex Collaboration

Authors
Citation
M. Iori, First results from the Selex Collaboration, NUCL PH B-P, 75B, 1999, pp. 16-19
Citations number
14
Categorie Soggetti
Physics
Journal title
NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS
ISSN journal
09205632 → ACNP
Volume
75B
Year of publication
1999
Pages
16 - 19
Database
ISI
SICI code
0920-5632(199904)75B:<16:FRFTSC>2.0.ZU;2-W
Abstract
The SELEX experiment (E781) is 3-stage magnetic spectrometer for a high sta tistics study of hadroproduction of charm baryons out to large x(F) using 6 50 Gev Sigma(-), pi(-) and p beams. The main features of the spectrometer a re: a high precision silicon vertex system,powerful particle identification provided by TRD and RICH, forward Lambda(s) decay spectrometer and 3-stage lead glass photon detector. An experiment overview and description of spec trometer features are shown Preliminary reconstructed charm states and resu lts on Lambda(c), D+ particles and antiparticles produced by Sigma(-), pi(- ) and p beams at x(F) > 0.3 are presented. Asymmetry for Lambda(c) producti on is also discussed.