Observation of a ΛΛ6He double hypernucleus

H. Takahashi; J. K. Ahn; H. Akikawa; S. Aoki; K. Arai; S. Y. Bahk; K. M. Baik; B. Bassalleck; J. H. Chung; M. S. Chung; D. H. Davis; T. Fukuda; K. Hoshino; A. Ichikawa; M. Ieiri; K. Imai; Y. H. Iwata; Y. S. Iwata; H. Kanda; M. Kaneko; T. Kawai; M. Kawasaki; C. O. Kim; J. Y. Kim; S. J. Kim; S. H. Kim; Y. Kondo; T. Kouketsu; Y. L. Lee; J. W.C. McNabb; M. Mitsuhara; Y. Nagase; C. Nagoshi; K. Nakazawa; H. Noumi; S. Ogawa; H. Okabe; K. Oyama; H. M. Park; I. G. Park; J. Parker; Y. S. Ra; J. T. Rhee; A. Rusek; H. Shibuya; K. S. Sim; K. Saha; D. Seki; M. Sekimoto; J. S. Song; T. Takahashi; F. Takeutchi; H. Tanaka; K. Tanida; J. Tojo; H. Torii; S. Torikai; D. N. Tovee; N. Ushida; K. Yamamoto; N. Yasuda; J. T. Yang; C. J. Yoon; C. S. Yoon; M. Yosoi; T. Yoshida; L. Zhu

Observation of a _ΛΛ⁶He double hypernucleus

H. Takahashi, J. K. Ahn, H. Akikawa, S. Aoki, K. Arai, S. Y. Bahk, K. M. Baik, B. Bassalleck, J. H. Chung, M. S. Chung, D. H. Davis, T. Fukuda, K. Hoshino, A. Ichikawa, M. Ieiri, K. Imai, Y. H. Iwata, Y. S. Iwata, H. Kanda, M. KanekoT. Kawai, M. Kawasaki, C. O. Kim, J. Y. Kim, S. J. Kim, S. H. Kim, Y. Kondo, T. Kouketsu, Y. L. Lee, J. W.C. McNabb, M. Mitsuhara, Y. Nagase, C. Nagoshi, K. Nakazawa, H. Noumi, S. Ogawa, H. Okabe, K. Oyama, H. M. Park, I. G. Park, J. Parker, Y. S. Ra, J. T. Rhee, A. Rusek, H. Shibuya, K. S. Sim, K. Saha, D. Seki, M. Sekimoto, J. S. Song, T. Takahashi, F. Takeutchi, H. Tanaka, K. Tanida, J. Tojo, H. Torii, S. Torikai, D. N. Tovee, N. Ushida, K. Yamamoto, N. Yasuda, J. T. Yang, C. J. Yoon, C. S. Yoon, M. Yosoi, T. Yoshida, L. Zhu

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Abstract

A hybrid-emulsion experiment was conducted to study a double-hyperfragment event and to calculate the binding energies of double hypernuclei. The ⁶_λλHe hypernucleus constituting the lightest closed shell structure containing baryons was studied. The experiment was conducted at the KEK proton synchrotron using the 1.66 GeV/c separated laser beams. The experiment identified the sequential decay of the hypernucleus; and measured its mass and interaction energy. Results of the experiment showed that the λλ interaction was weakly attractive.

Original language	English
Article number	212502
Pages (from-to)	2125021-2125025
Number of pages	5
Journal	Physical review letters
Volume	87
Issue number	21
Publication status	Published - Nov 19 2001
Externally published	Yes

All Science Journal Classification (ASJC) codes

Physics and Astronomy(all)

Cite this

Takahashi, H., Ahn, J. K., Akikawa, H., Aoki, S., Arai, K., Bahk, S. Y., Baik, K. M., Bassalleck, B., Chung, J. H., Chung, M. S., Davis, D. H., Fukuda, T., Hoshino, K., Ichikawa, A., Ieiri, M., Imai, K., Iwata, Y. H., Iwata, Y. S., Kanda, H., ... Zhu, L. (2001). Observation of a _ΛΛ⁶He double hypernucleus. Physical review letters, 87(21), 2125021-2125025. Article 212502.

Takahashi, H, Ahn, JK, Akikawa, H, Aoki, S, Arai, K, Bahk, SY, Baik, KM, Bassalleck, B, Chung, JH, Chung, MS, Davis, DH, Fukuda, T, Hoshino, K, Ichikawa, A, Ieiri, M, Imai, K, Iwata, YH, Iwata, YS, Kanda, H, Kaneko, M, Kawai, T, Kawasaki, M, Kim, CO, Kim, JY, Kim, SJ, Kim, SH, Kondo, Y, Kouketsu, T, Lee, YL, McNabb, JWC, Mitsuhara, M, Nagase, Y, Nagoshi, C, Nakazawa, K, Noumi, H, Ogawa, S, Okabe, H, Oyama, K, Park, HM, Park, IG, Parker, J, Ra, YS, Rhee, JT, Rusek, A, Shibuya, H, Sim, KS, Saha, K, Seki, D, Sekimoto, M, Song, JS, Takahashi, T, Takeutchi, F, Tanaka, H, Tanida, K, Tojo, J, Torii, H, Torikai, S, Tovee, DN, Ushida, N, Yamamoto, K, Yasuda, N, Yang, JT, Yoon, CJ, Yoon, CS, Yosoi, M, Yoshida, T & Zhu, L 2001, 'Observation of a _ΛΛ⁶He double hypernucleus', Physical review letters, vol. 87, no. 21, 212502, pp. 2125021-2125025.

@article{9115d6f9733c4b28843a9dd8669c9321,

title = "Observation of a ΛΛ6He double hypernucleus",

abstract = "A hybrid-emulsion experiment was conducted to study a double-hyperfragment event and to calculate the binding energies of double hypernuclei. The 6λλHe hypernucleus constituting the lightest closed shell structure containing baryons was studied. The experiment was conducted at the KEK proton synchrotron using the 1.66 GeV/c separated laser beams. The experiment identified the sequential decay of the hypernucleus; and measured its mass and interaction energy. Results of the experiment showed that the λλ interaction was weakly attractive.",

author = "H. Takahashi and Ahn, {J. K.} and H. Akikawa and S. Aoki and K. Arai and Bahk, {S. Y.} and Baik, {K. M.} and B. Bassalleck and Chung, {J. H.} and Chung, {M. S.} and Davis, {D. H.} and T. Fukuda and K. Hoshino and A. Ichikawa and M. Ieiri and K. Imai and Iwata, {Y. H.} and Iwata, {Y. S.} and H. Kanda and M. Kaneko and T. Kawai and M. Kawasaki and Kim, {C. O.} and Kim, {J. Y.} and Kim, {S. J.} and Kim, {S. H.} and Y. Kondo and T. Kouketsu and Lee, {Y. L.} and McNabb, {J. W.C.} and M. Mitsuhara and Y. Nagase and C. Nagoshi and K. Nakazawa and H. Noumi and S. Ogawa and H. Okabe and K. Oyama and Park, {H. M.} and Park, {I. G.} and J. Parker and Ra, {Y. S.} and Rhee, {J. T.} and A. Rusek and H. Shibuya and Sim, {K. S.} and K. Saha and D. Seki and M. Sekimoto and Song, {J. S.} and T. Takahashi and F. Takeutchi and H. Tanaka and K. Tanida and J. Tojo and H. Torii and S. Torikai and Tovee, {D. N.} and N. Ushida and K. Yamamoto and N. Yasuda and Yang, {J. T.} and Yoon, {C. J.} and Yoon, {C. S.} and M. Yosoi and T. Yoshida and L. Zhu",

year = "2001",

month = nov,

day = "19",

language = "English",

volume = "87",

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T1 - Observation of a ΛΛ6He double hypernucleus

AU - Takahashi, H.

AU - Ahn, J. K.

AU - Akikawa, H.

AU - Aoki, S.

AU - Arai, K.

AU - Bahk, S. Y.

AU - Baik, K. M.

AU - Bassalleck, B.

AU - Chung, J. H.

AU - Chung, M. S.

AU - Davis, D. H.

AU - Fukuda, T.

AU - Hoshino, K.

AU - Ichikawa, A.

AU - Ieiri, M.

AU - Imai, K.

AU - Iwata, Y. H.

AU - Iwata, Y. S.

AU - Kanda, H.

AU - Kaneko, M.

AU - Kawai, T.

AU - Kawasaki, M.

AU - Kim, C. O.

AU - Kim, J. Y.

AU - Kim, S. J.

AU - Kim, S. H.

AU - Kondo, Y.

AU - Kouketsu, T.

AU - Lee, Y. L.

AU - McNabb, J. W.C.

AU - Mitsuhara, M.

AU - Nagase, Y.

AU - Nagoshi, C.

AU - Nakazawa, K.

AU - Noumi, H.

AU - Ogawa, S.

AU - Okabe, H.

AU - Oyama, K.

AU - Park, H. M.

AU - Park, I. G.

AU - Parker, J.

AU - Ra, Y. S.

AU - Rhee, J. T.

AU - Rusek, A.

AU - Shibuya, H.

AU - Sim, K. S.

AU - Saha, K.

AU - Seki, D.

AU - Sekimoto, M.

AU - Song, J. S.

AU - Takahashi, T.

AU - Takeutchi, F.

AU - Tanaka, H.

AU - Tanida, K.

AU - Tojo, J.

AU - Torii, H.

AU - Torikai, S.

AU - Tovee, D. N.

AU - Ushida, N.

AU - Yamamoto, K.

AU - Yasuda, N.

AU - Yang, J. T.

AU - Yoon, C. J.

AU - Yoon, C. S.

AU - Yosoi, M.

AU - Yoshida, T.

AU - Zhu, L.

PY - 2001/11/19

Y1 - 2001/11/19

N2 - A hybrid-emulsion experiment was conducted to study a double-hyperfragment event and to calculate the binding energies of double hypernuclei. The 6λλHe hypernucleus constituting the lightest closed shell structure containing baryons was studied. The experiment was conducted at the KEK proton synchrotron using the 1.66 GeV/c separated laser beams. The experiment identified the sequential decay of the hypernucleus; and measured its mass and interaction energy. Results of the experiment showed that the λλ interaction was weakly attractive.

AB - A hybrid-emulsion experiment was conducted to study a double-hyperfragment event and to calculate the binding energies of double hypernuclei. The 6λλHe hypernucleus constituting the lightest closed shell structure containing baryons was studied. The experiment was conducted at the KEK proton synchrotron using the 1.66 GeV/c separated laser beams. The experiment identified the sequential decay of the hypernucleus; and measured its mass and interaction energy. Results of the experiment showed that the λλ interaction was weakly attractive.

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UR - http://www.scopus.com/inward/citedby.url?scp=0035914958&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:0035914958

SN - 0031-9007

VL - 87

SP - 2125021

EP - 2125025

JO - Physical review letters

JF - Physical review letters

IS - 21

M1 - 212502

ER -

Observation of a _ΛΛ⁶He double hypernucleus

Abstract

All Science Journal Classification (ASJC) codes

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