Search for the H-dibaryon resonance in C12 (K-,K+ΛΛX)

C. J. Yoon, H. Akikawa, K. Aoki, Y. Fukao, H. Funahashi, M. Hayata, K. Imai, K. Miwa, H. Okada, N. Saito, H. D. Sato, K. Shoji, H. Takahashi, K. Taketani, J. Asai, M. Kurosawa, M. Ieiri, T. Hayakawa, T. Kishimoto, A. Sato & 15 others Y. Shimizu, K. Yamamoto, T. Yoshida, T. Hibi, K. Nakazawa, Jung Keun Ahn, B. H. Choi, S. J. Kim, S. H. Kim, B. D. Park, I. G. Park, J. S. Song, C. S. Yoon, K. Tanida, A. Ohnishi

Research output: Contribution to journalArticle

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Abstract

The H-dibaryon resonance was sought by a ΛΛ invariant mass spectrum that was obtained by the C12 (K-,K+ΛΛX) reactions. We observed a bump near the ΛΛ threshold, as reported by the previous experiment (KEK E224), with better statistics. Data were compared with results of a cascade model calculation including ΛΛ final state interactions consistent with the newly measured binding energy of ΛΛ6He. No significant enhancements above levels of the model predictions were observed. The resulting upper limit for the production cross section of the H with a mass range between the ΛΛ and ΞN threshold is found to be 2.1 ± 0.6 (stat.) ± 0.1 (syst.) μb/sr at a 90% confidence level.

Original languageEnglish
Article number022201
JournalPhysical Review C - Nuclear Physics
Volume75
Issue number2
DOIs
Publication statusPublished - 2007 Feb 7
Externally publishedYes

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thresholds
mass spectra
confidence
cascades
binding energy
statistics
augmentation
cross sections
predictions
interactions

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Nuclear and High Energy Physics

Cite this

Yoon, C. J., Akikawa, H., Aoki, K., Fukao, Y., Funahashi, H., Hayata, M., ... Ohnishi, A. (2007). Search for the H-dibaryon resonance in C12 (K-,K+ΛΛX). Physical Review C - Nuclear Physics, 75(2), [022201]. https://doi.org/10.1103/PhysRevC.75.022201

Search for the H-dibaryon resonance in C12 (K-,K+ΛΛX). / Yoon, C. J.; Akikawa, H.; Aoki, K.; Fukao, Y.; Funahashi, H.; Hayata, M.; Imai, K.; Miwa, K.; Okada, H.; Saito, N.; Sato, H. D.; Shoji, K.; Takahashi, H.; Taketani, K.; Asai, J.; Kurosawa, M.; Ieiri, M.; Hayakawa, T.; Kishimoto, T.; Sato, A.; Shimizu, Y.; Yamamoto, K.; Yoshida, T.; Hibi, T.; Nakazawa, K.; Ahn, Jung Keun; Choi, B. H.; Kim, S. J.; Kim, S. H.; Park, B. D.; Park, I. G.; Song, J. S.; Yoon, C. S.; Tanida, K.; Ohnishi, A.

In: Physical Review C - Nuclear Physics, Vol. 75, No. 2, 022201, 07.02.2007.

Research output: Contribution to journalArticle

Yoon, CJ, Akikawa, H, Aoki, K, Fukao, Y, Funahashi, H, Hayata, M, Imai, K, Miwa, K, Okada, H, Saito, N, Sato, HD, Shoji, K, Takahashi, H, Taketani, K, Asai, J, Kurosawa, M, Ieiri, M, Hayakawa, T, Kishimoto, T, Sato, A, Shimizu, Y, Yamamoto, K, Yoshida, T, Hibi, T, Nakazawa, K, Ahn, JK, Choi, BH, Kim, SJ, Kim, SH, Park, BD, Park, IG, Song, JS, Yoon, CS, Tanida, K & Ohnishi, A 2007, 'Search for the H-dibaryon resonance in C12 (K-,K+ΛΛX)', Physical Review C - Nuclear Physics, vol. 75, no. 2, 022201. https://doi.org/10.1103/PhysRevC.75.022201
Yoon CJ, Akikawa H, Aoki K, Fukao Y, Funahashi H, Hayata M et al. Search for the H-dibaryon resonance in C12 (K-,K+ΛΛX). Physical Review C - Nuclear Physics. 2007 Feb 7;75(2). 022201. https://doi.org/10.1103/PhysRevC.75.022201
Yoon, C. J. ; Akikawa, H. ; Aoki, K. ; Fukao, Y. ; Funahashi, H. ; Hayata, M. ; Imai, K. ; Miwa, K. ; Okada, H. ; Saito, N. ; Sato, H. D. ; Shoji, K. ; Takahashi, H. ; Taketani, K. ; Asai, J. ; Kurosawa, M. ; Ieiri, M. ; Hayakawa, T. ; Kishimoto, T. ; Sato, A. ; Shimizu, Y. ; Yamamoto, K. ; Yoshida, T. ; Hibi, T. ; Nakazawa, K. ; Ahn, Jung Keun ; Choi, B. H. ; Kim, S. J. ; Kim, S. H. ; Park, B. D. ; Park, I. G. ; Song, J. S. ; Yoon, C. S. ; Tanida, K. ; Ohnishi, A. / Search for the H-dibaryon resonance in C12 (K-,K+ΛΛX). In: Physical Review C - Nuclear Physics. 2007 ; Vol. 75, No. 2.
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AU - Hayata, M.

AU - Imai, K.

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AU - Kishimoto, T.

AU - Sato, A.

AU - Shimizu, Y.

AU - Yamamoto, K.

AU - Yoshida, T.

AU - Hibi, T.

AU - Nakazawa, K.

AU - Ahn, Jung Keun

AU - Choi, B. H.

AU - Kim, S. J.

AU - Kim, S. H.

AU - Park, B. D.

AU - Park, I. G.

AU - Song, J. S.

AU - Yoon, C. S.

AU - Tanida, K.

AU - Ohnishi, A.

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