Physics Letters B (Jul 2015)
Hypernuclear production cross section in the reaction of 6Li + 12C at 2A GeV
- C. Rappold,
- T.R. Saito,
- O. Bertini,
- S. Bianchin,
- V. Bozkurt,
- E. Kim,
- M. Kavatsyuk,
- Y. Ma,
- F. Maas,
- S. Minami,
- D. Nakajima,
- B. Özel-Tashenov,
- K. Yoshida,
- P. Achenbach,
- S. Ajimura,
- T. Aumann,
- C. Ayerbe Gayoso,
- H.C. Bhang,
- C. Caesar,
- S. Erturk,
- T. Fukuda,
- B. Göküzüm,
- E. Guliev,
- J. Hoffmann,
- G. Ickert,
- Z.S. Ketenci,
- D. Khaneft,
- M. Kim,
- S. Kim,
- K. Koch,
- N. Kurz,
- A. Le Fèvre,
- Y. Mizoi,
- L. Nungesser,
- W. Ott,
- J. Pochodzalla,
- A. Sakaguchi,
- C.J. Schmidt,
- M. Sekimoto,
- H. Simon,
- T. Takahashi,
- G.J. Tambave,
- H. Tamura,
- W. Trautmann,
- S. Voltz,
- C.J. Yoon
Affiliations
- C. Rappold
- GSI Helmholtz Centre for Heavy Ion Research, Planckstrasse 1, 64291 Darmstadt, Germany
- T.R. Saito
- GSI Helmholtz Centre for Heavy Ion Research, Planckstrasse 1, 64291 Darmstadt, Germany
- O. Bertini
- GSI Helmholtz Centre for Heavy Ion Research, Planckstrasse 1, 64291 Darmstadt, Germany
- S. Bianchin
- GSI Helmholtz Centre for Heavy Ion Research, Planckstrasse 1, 64291 Darmstadt, Germany
- V. Bozkurt
- GSI Helmholtz Centre for Heavy Ion Research, Planckstrasse 1, 64291 Darmstadt, Germany
- E. Kim
- GSI Helmholtz Centre for Heavy Ion Research, Planckstrasse 1, 64291 Darmstadt, Germany
- M. Kavatsyuk
- KVI, University of Groningen, Zernikelaan 25, NL-9747 AA Groningen, The Netherlands
- Y. Ma
- GSI Helmholtz Centre for Heavy Ion Research, Planckstrasse 1, 64291 Darmstadt, Germany
- F. Maas
- GSI Helmholtz Centre for Heavy Ion Research, Planckstrasse 1, 64291 Darmstadt, Germany
- S. Minami
- GSI Helmholtz Centre for Heavy Ion Research, Planckstrasse 1, 64291 Darmstadt, Germany
- D. Nakajima
- GSI Helmholtz Centre for Heavy Ion Research, Planckstrasse 1, 64291 Darmstadt, Germany
- B. Özel-Tashenov
- GSI Helmholtz Centre for Heavy Ion Research, Planckstrasse 1, 64291 Darmstadt, Germany
- K. Yoshida
- GSI Helmholtz Centre for Heavy Ion Research, Planckstrasse 1, 64291 Darmstadt, Germany
- P. Achenbach
- Johannes Gutenberg-Universität Mainz, J.J. Becherweg 40, 55099 Mainz, Germany
- S. Ajimura
- Research Centre for Nuclear Physics (RCNP), 10-1 Mihogaoka, Ibaraki, Osaka 567-0047, Japan
- T. Aumann
- Technische Universität Darmstadt, 64289 Darmstadt, Germany
- C. Ayerbe Gayoso
- Johannes Gutenberg-Universität Mainz, J.J. Becherweg 40, 55099 Mainz, Germany
- H.C. Bhang
- Seoul National University, Gwanakro Sillim-dong, Gwanak-gu, Seoul 151-747, Republic of Korea
- C. Caesar
- Technische Universität Darmstadt, 64289 Darmstadt, Germany
- S. Erturk
- Nigde University, 51100 Nigde, Turkey
- T. Fukuda
- Osaka Electro-Communication University, Hatsu-cho 18-8, Neyagawa, Osaka 572-8530, Japan
- B. Göküzüm
- GSI Helmholtz Centre for Heavy Ion Research, Planckstrasse 1, 64291 Darmstadt, Germany
- E. Guliev
- KVI, University of Groningen, Zernikelaan 25, NL-9747 AA Groningen, The Netherlands
- J. Hoffmann
- GSI Helmholtz Centre for Heavy Ion Research, Planckstrasse 1, 64291 Darmstadt, Germany
- G. Ickert
- GSI Helmholtz Centre for Heavy Ion Research, Planckstrasse 1, 64291 Darmstadt, Germany
- Z.S. Ketenci
- Nigde University, 51100 Nigde, Turkey
- D. Khaneft
- GSI Helmholtz Centre for Heavy Ion Research, Planckstrasse 1, 64291 Darmstadt, Germany
- M. Kim
- Seoul National University, Gwanakro Sillim-dong, Gwanak-gu, Seoul 151-747, Republic of Korea
- S. Kim
- Seoul National University, Gwanakro Sillim-dong, Gwanak-gu, Seoul 151-747, Republic of Korea
- K. Koch
- GSI Helmholtz Centre for Heavy Ion Research, Planckstrasse 1, 64291 Darmstadt, Germany
- N. Kurz
- GSI Helmholtz Centre for Heavy Ion Research, Planckstrasse 1, 64291 Darmstadt, Germany
- A. Le Fèvre
- GSI Helmholtz Centre for Heavy Ion Research, Planckstrasse 1, 64291 Darmstadt, Germany
- Y. Mizoi
- Osaka Electro-Communication University, Hatsu-cho 18-8, Neyagawa, Osaka 572-8530, Japan
- L. Nungesser
- Johannes Gutenberg-Universität Mainz, J.J. Becherweg 40, 55099 Mainz, Germany
- W. Ott
- GSI Helmholtz Centre for Heavy Ion Research, Planckstrasse 1, 64291 Darmstadt, Germany
- J. Pochodzalla
- Johannes Gutenberg-Universität Mainz, J.J. Becherweg 40, 55099 Mainz, Germany
- A. Sakaguchi
- Osaka University, 1-1 Machikaneyama, Toyonaka, Osaka 560-0043, Japan
- C.J. Schmidt
- GSI Helmholtz Centre for Heavy Ion Research, Planckstrasse 1, 64291 Darmstadt, Germany
- M. Sekimoto
- KEK, 1-1 Oho, Tsukuba, Ibaraki 305-0801, Japan
- H. Simon
- GSI Helmholtz Centre for Heavy Ion Research, Planckstrasse 1, 64291 Darmstadt, Germany
- T. Takahashi
- KEK, 1-1 Oho, Tsukuba, Ibaraki 305-0801, Japan
- G.J. Tambave
- KVI, University of Groningen, Zernikelaan 25, NL-9747 AA Groningen, The Netherlands
- H. Tamura
- Tohoku University, 6-3 Aoba Aramaki Aoba Sendai, Miyagi 980-7875, Japan
- W. Trautmann
- GSI Helmholtz Centre for Heavy Ion Research, Planckstrasse 1, 64291 Darmstadt, Germany
- S. Voltz
- GSI Helmholtz Centre for Heavy Ion Research, Planckstrasse 1, 64291 Darmstadt, Germany
- C.J. Yoon
- Seoul National University, Gwanakro Sillim-dong, Gwanak-gu, Seoul 151-747, Republic of Korea
- DOI
- https://doi.org/10.1016/j.physletb.2015.05.059
- Journal volume & issue
-
Vol. 747,
no. C
pp. 129 – 134
Abstract
Hypernuclear production cross sections have been deduced for the first time with induced reaction of heavy ion beam on fixed target and by means of the invariant mass method by the HypHI Collaboration exploiting the reaction of 6Li + 12C at 2A GeV or sNN=2.70 GeV. A production cross section of 3.9±1.4 μb for 3ΛH and of 3.1±1.0 μb for 4ΛH respectively in the projectile rapidity region was inferred as well as the total production cross section of the Λ hyperon was measured and found to be equal to 1.7±0.8 mb. A global fit based on a Bayesian approach was performed in order to include and propagate statistical and systematic uncertainties. Production ratios of 3ΛH/4ΛH, 3ΛH/Λ and 4ΛH/Λ were included in the inference procedure. The strangeness population factors S3 and S4 of 3ΛH and 4ΛH respectively were extracted. In addition, the multiplicities of the Λ hyperon, 3ΛH, and 4ΛH together with the rapidity and transversal momentum density distributions of the observed hypernuclei were extracted and reported.
Keywords
