Extraction of ΛΛ scattering length

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. SatoY. Shimizu, K. Yamamoto, T. Yoshida, T. Hibi, K. Nakazawa, J. K. 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: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

We determine ΛΛ scattering parameters from a ΛΛ invariant mass spectrum that was obtained by 12C(K-, K+ΛΛ) reaction at the KEK Proton Synchrotron. In the framework of Watson's procedure, the obtained scattering length a ΛΛ = -0.10 +0.45-2.37 ± 0.04 and effective range rΛΛ =13.90 ><+16.10-13.90 ± 9.48 fm are most consistent with the values predicted by using the Nijmegen soft core models (NSC97's). However, the predicted values by using the Nijmegen hard-core ND (G-matrix) and the extended soft-core (ESC00) models are out of two standard deviations from the determined scattering parameters.

Original languageEnglish
Title of host publicationProceedings of the Sendai International Symposium
Subtitle of host publicationStrangeness in Nuclear and Hadronic Systems, SENDAI 2008
Pages156-161
Number of pages6
Publication statusPublished - 2010
EventSendai International Symposium on Strangeness in Nuclear and Hadronic Systems, SENDAI 2008 - Sendai, Japan
Duration: 2008 Dec 142008 Dec 18

Publication series

NameProceedings of the Sendai International Symposium: Strangeness in Nuclear and Hadronic Systems, SENDAI 2008

Other

OtherSendai International Symposium on Strangeness in Nuclear and Hadronic Systems, SENDAI 2008
CountryJapan
CitySendai
Period08/12/1408/12/18

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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  • Cite this

    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., ... Ohnishi, A. (2010). Extraction of ΛΛ scattering length. In Proceedings of the Sendai International Symposium: Strangeness in Nuclear and Hadronic Systems, SENDAI 2008 (pp. 156-161). (Proceedings of the Sendai International Symposium: Strangeness in Nuclear and Hadronic Systems, SENDAI 2008).