Published July 2017 | Version v1
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Search for excited state of Σ hypernucleus in the J-PARC E13 experiment

  • 1. Osaka University, Department of Physics, Toyonaka, Osaka (Japan)
  • 2. Dipartimento di Scienza Applecate e Teecnologica, Politecnico di Torino, Corso Duca degli Abruzzi, Torino (Italy)
  • 3. Tohoku University, Department of Physics, Sendai, Miyagi (Japan)
  • 4. Kyoto University, Department of Physics, Kyoto (Japan)
  • 5. High Energy Accelerator Research Organization (KEK), Institute of Particle and Nuclear Studies, Tsukuba, Ibaraki (Japan)
  • 6. INFN, Sezione di Torino, Torino (Italy)
  • 7. Joint Institute for Nuclear Research, Dubna, Moscow (Russian Federation)
  • 8. Japan Atomic Energy Agency (JAEA), Advanced Science Research Center (ASRC), Tokai, Ibaraki (Japan)
  • 9. Department of Physics, Korea University, Seoul (Korea, Republic of)
  • 10. Gifu University, Faculty of Education, Gifu (Japan)
  • 11. Department of Physics and Astronomy, Seoul National University, Seoul (Korea, Republic of)
  • 12. Osaka University, Research Center for Nuclear Physics, Ibaraki, Osaka (Japan)

Description

One of the main items of the J-PARC E13 experiment is the search for excited states of the Σ4He hypernucleus via the 4He(K, π) reaction at 1.5 GeV/c. The missing-mass spectrum of the 4He(K, π)X reaction was obtained in an angular range from 0 to 20°. We show the count-base spectrum of the missing-mass in the angular range from 2 to 14°. The ground state of Λ4He and Σ4He were clearly observed in the missing-mass spectrum. We also show three missing-mass spectra divided by the reaction angle. (author)

Availability note (English)

Available from http://dx.doi.org/10.7566/JPSCP.17.012009
Part of:
Proceedings of the 12th international conference on hypernuclear and strange particle physics (HYP2015)

Additional details

Identifiers

Publishing Information

Publisher
Physical Society of Japan
Imprint Place
Tokyo (Japan)
ISBN
978-4-89027-122-1
Imprint Title
Proceedings of the 12th international conference on hypernuclear and strange particle physics (HYP2015)
Imprint Pagination
[623 p.]
Journal Page Range
p. 012009.1-012009.4

Conference

Title
12. international conference on hypernuclear and strange particle physics
Acronym
HYP2015
Dates
7-12 Sep 2015
Place
Sendai, Miyagi (Japan)

Optional Information

Notes
5 refs., 4 figs.