Charm Production in 400-{GeV}/ Proton Emulsion Interactions
Collaboration
17 pages
Published in:
- Nucl.Phys.B 199 (1982) 424-440
- Published: 1982
Report number:
- TIFR-BC-82-1
Experiments:
Citations per year
Abstract: (Elsevier)
5032 proton-emulsion interactions at 400 GeV/ c momentum have been carefully scrutinized for production and decay of charged charm particles. In order to detect these decays, shower tracks from 3056 stars have been followed to a maximum length of 1 mm and those from 1976 stars up to 2 mm. A total of 23 three-prong charm-like candidates have been recorded in the forward cone. The background due to γ-overlap on a shower track, trident/pseudo-trident production and secondary interactions is estimated to be 15. Attributing the signal of 8 events to Λ c + and assuming the branching ratio of Λ c + → 3 prong to be 0.6 and τ Λ c to be 10 −13 sec we obtain the production cross section to be 106±39 μ b/nucleon. Out of these 8 events one example of semileptonic decay of Λ c + is seen.- P NUCLEUS: INCLUSIVE REACTION
- LAMBDA/C(2260): HADROPRODUCTION
- HADROPRODUCTION: LAMBDA/C(2260)
- LAMBDA/C(2260): POSITIVE PARTICLE
- LAMBDA/C(2260): LIFETIME
- LAMBDA/C(2260): SEMILEPTONIC DECAY
- SEMILEPTONIC DECAY: LAMBDA/C(2260)
- CHANNEL CROSS SECTION
- FINAL STATE: (3PARTICLE)
- (3PARTICLE): FINAL STATE
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