Published June 6, 1981 | Version v1
Journal article Metadata-only

Direct observation of charmed-particle pairs produced in 340 GeV/c negative-pion interactions in an emulsion chamber

Creators

  • 1. Nagoya Univ. (Japan). Dept. of Physics
  • 2. Faculty of Education, Aichi University of Education, Kariya, Aichi (Japan)
  • 3. Tokyo Univ., Tanashi (Japan). Inst. for Cosmic Ray Research
  • 4. Yokohama National Univ. (Japan). Faculty of Education

Description

Among secondaries of 4323 interactions produced in an emulsion chamber exposed to a 340 GeV/c negative ion beam of CERN-SPS, 4 pairs of charmed particles were detected. The mean lifetime of D0(D0-bar) and the inclusive production cross-section of a charmed particle pair by 340 GeV/c pions were evaluated as (3.1sub(-1.6)sup(+ 2.0)) x 10-13 sec and 44 +- 22 μb. (author)

Additional details

Publishing Information

Journal Title
Lett. Nuovo Cim.
Journal Volume
31
Journal Issue
6
Series
Lett. Nuovo Cim.
Journal Page Range
199-208
ISSN
0024-1318

INIS

Country of Publication
Italy
Country of Input or Organization
Italy
INIS RN
14770373
Subject category
S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; S73: NUCLEAR PHYSICS AND RADIATION PHYSICS;
Descriptors DEI
CHARM PARTICLES; CROSS SECTIONS; EMULSIONS; GEV RANGE; INCLUSIVE INTERACTIONS; LIFETIME; PARTICLE PRODUCTION; PION MINUS REACTIONS
Descriptors DEC
COLLOIDS; DISPERSIONS; ELEMENTARY PARTICLES; ENERGY RANGE; HADRON REACTIONS; INTERACTIONS; MESON REACTIONS; NUCLEAR REACTIONS; PARTICLE INTERACTIONS; PION REACTIONS; POSTULATED PARTICLES