Published September 20, 2013 | Version v1
Journal article Metadata-only

Search for the Θ+ pentaquark at J-PARC

Creators

  • 1. Department of Physics, Kyoto University, Kyoto 606-8502 (Japan)
  • 2. INFN, Istituto Nazionale di Fisica Nucleare, Sez. di Torino, I-10125 Torino (Italy)
  • 3. Dipartimento di Scienza Applicata e Tecnologia, Politecnico di Torino, I-10129 (Italy)
  • 4. Research Center for Nuclear Physics (RCNP), Ibaraki, Osaka 567-0047 (Japan)
  • 5. High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801 (Japan)
  • 6. Department of Physics and Astronomy, Seoul National University, Seoul 151-747 (Korea, Republic of)
  • 7. Department of Physics and Astronomy, University of New Mexico, NM 87131-0001 (United States)
  • 8. Dipartimento di Fisica, Università di Torino, I-10125 Torino (Italy)
  • 9. Department of Physics, Tohoku University, Sendai 980-8578 (Japan)
  • 10. Joint Institute for Nuclear Research, Dubna, Moscow Region 141980 (Russian Federation)
  • 11. Department of Physics, Osaka University, Toyonaka 560-0043 (Japan)

Description

We have been searching for the Θ+ pentaquark via the π−p→K−X reaction at the J-PARC hadron facility. No peak structure was observed in the missing mass spectrum obtained at 1.92 GeV/c beam momentum. The upper limit for the production cross section averaged over the scattering angle from 2° to 15° in the laboratory frame was derived to be 0.26 μb/sr. In order to make a more stringent constraint we have also performed a measurement at 2.0 GeV/c. Present analysis status of this new data is reported

Availability note (English)

Available from http://dx.doi.org/10.1016/j.nuclphysa.2013.01.010

Additional details

Identifiers

DOI
10.1016/j.nuclphysa.2013.01.010;
PII
S0375-9474(13)00020-1;

Publishing Information

Journal Title
Nuclear Physics. A
Journal Volume
914
Journal Page Range
p. 91-96
ISSN
0375-9474
CODEN
NUPABL

Conference

Title
11. international conference on hypernuclear and strange particle physics
Acronym
HYP2012
Dates
1-5 Oct 2012
Place
Barcelona (Spain)

INIS

Country of Publication
Netherlands
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
45048798
Subject category
S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
Resource subtype / Literary indicator
Conference
Descriptors DEI
CROSS SECTIONS; GEV RANGE; J-PARC; KAONS MINUS; LIMITING VALUES; MISSING-MASS SPECTRA; PARTICLE IDENTIFICATION; PARTICLE PRODUCTION; PION MINUS REACTIONS; PION-PROTON INTERACTIONS; PIONS MINUS; SCATTERING
Descriptors DEC
ACCELERATORS; BOSONS; CHARGED-PARTICLE REACTIONS; CYCLIC ACCELERATORS; ELEMENTARY PARTICLES; ENERGY RANGE; HADRON REACTIONS; HADRON-HADRON INTERACTIONS; HADRONS; INTERACTIONS; KAONS; MESON REACTIONS; MESON-BARYON INTERACTIONS; MESON-NUCLEON INTERACTIONS; MESONS; NUCLEAR REACTIONS; PARTICLE INTERACTIONS; PION REACTIONS; PION-NUCLEON INTERACTIONS; PIONS; PSEUDOSCALAR MESONS; SPECTRA; STRANGE MESONS; STRANGE PARTICLES; SYNCHROTRONS

Optional Information

Copyright
Copyright (c) 2013 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.