Observation of a Be double-Lambda hypernucleus in the J-PARC E07 experiment

H. Ekawa; K. Agari; J. K. Ahn; T. Akaishi; Y. Akazawa; S. Ashikaga; B. Bassalleck; S. Bleser; Y. Endo; Y. Fujikawa; N. Fujioka; M. Fujita; R. Goto; Y. Han; S. Hasegawa; T. Hashimoto; Shuhei Hayakawa; T. Hayakawa; E. Hayata; K. Hicks; E. Hirose; M. Hirose; Ryotaro Honda; K. Hoshino; S. Hoshino; K. Hosomi; S. H. Hwang; Y. Ichikawa; M. Ichikawa; M. Ieiri; K. Imai; K. Inaba; Y. Ishikawa; A. Iskendir; H. Ito; K. Ito; W. S. Jung; S. Kanatsuki; H. Kanauchi; A. Kasagi; T. Kawai; M. H. Kim; S. H. Kim; S. Kinbara; R. Kiuchi; H. Kobayashi; K. Kobayashi; Takeshi Koike; A. Koshikawa; J. Y. Lee; J. W. Lee; T. L. Ma; S. Y. Matsumoto; M. Minakawa; K. Miwa; A. T. Moe; T. J. Moon; M. Moritsu; Y. Nagase; Y. Nakada; M. Nakagawa; D. Nakashima; K. Nakazawa; T. Nanamura; M. Naruki; A. N.L. Nyaw; Y. Ogura; M. Ohashi; K. Oue; S. Ozawa; J. Pochodzalla; S. Y. Ryu; H. Sako; Y. Sasaki; S. Sato; Y. Sato; F. Schupp; K. Shirotori; M. M. Soe; M. K. Soe; J. Y. Sohn; H. Sugimura; K. N. Suzuki; H. Takahashi; T. Takahashi; Y. Takahashi; T. Takeda; H. Tamura; K. Tanida; A. M.M. Theint; K. T. Tint; Y. Toyama; M. Ukai; E. Umezaki; T. Watabe; K. Watanabe; T. O. Yamamoto; S. B. Yang; C. S. Yoon; J. Yoshida; M. Yoshimoto; D. H. Zhang; Z. Zhang

doi:10.1093/ptep/pty149

Observation of a Be double-Lambda hypernucleus in the J-PARC E07 experiment

H. Ekawa, K. Agari, J. K. Ahn, T. Akaishi, Y. Akazawa, S. Ashikaga, B. Bassalleck, S. Bleser, Y. Endo, Y. Fujikawa, N. Fujioka, M. Fujita, R. Goto, Y. Han, S. Hasegawa, T. Hashimoto, Shuhei Hayakawa, T. Hayakawa, E. Hayata, K. HicksE. Hirose, M. Hirose, Ryotaro Honda, K. Hoshino, S. Hoshino, K. Hosomi, S. H. Hwang, Y. Ichikawa, M. Ichikawa, M. Ieiri, K. Imai, K. Inaba, Y. Ishikawa, A. Iskendir, H. Ito, K. Ito, W. S. Jung, S. Kanatsuki, H. Kanauchi, A. Kasagi, T. Kawai, M. H. Kim, S. H. Kim, S. Kinbara, R. Kiuchi, H. Kobayashi, K. Kobayashi, Takeshi Koike, A. Koshikawa, J. Y. Lee, J. W. Lee, T. L. Ma, S. Y. Matsumoto, M. Minakawa, K. Miwa, A. T. Moe, T. J. Moon, M. Moritsu, Y. Nagase, Y. Nakada, M. Nakagawa, D. Nakashima, K. Nakazawa, T. Nanamura, M. Naruki, A. N.L. Nyaw, Y. Ogura, M. Ohashi, K. Oue, S. Ozawa, J. Pochodzalla, S. Y. Ryu, H. Sako, Y. Sasaki, S. Sato, Y. Sato, F. Schupp, K. Shirotori, M. M. Soe, M. K. Soe, J. Y. Sohn, H. Sugimura, K. N. Suzuki, H. Takahashi, T. Takahashi, Y. Takahashi, T. Takeda, H. Tamura, K. Tanida, A. M.M. Theint, K. T. Tint, Y. Toyama, M. Ukai, E. Umezaki, T. Watabe, K. Watanabe, T. O. Yamamoto, S. B. Yang, C. S. Yoon, J. Yoshida, M. Yoshimoto, D. H. Zhang, Z. Zhang

研究成果: Article › 査読

27 被引用数 (Scopus)

抄録

A double-Λ hypernucleus, ΛΛ Be, was observed by the J-PARC E07 Collaboration in nuclear emulsions tagged by the (K-, K+) reaction. This event was interpreted as the production and decay of _ΛΛ;10 Be, ΛΛ;11 Be, or ΛΛ;12 Be∗ via Xi- capture in 16 O. By assuming capture in the atomic 3D state, the binding energies of two Λ hyperons (B_ΛΛ) of these double-Λ hypernuclei are obtained to be 15.05 pm 0.11,mathrmMeV, 19.07 pm 0.11,mathrmMeV, and 13.68 pm 0.11,mathrmMeV, respectively. Based on the kinematic fitting, ΛΛ;11 Be is the most likely explanation for the observed event.

本文言語	English
論文番号	021D02
ジャーナル	Progress of Theoretical and Experimental Physics
巻	2019
号	2
DOI	https://doi.org/10.1093/ptep/pty149
出版ステータス	Published - 2019 2月 1

ASJC Scopus subject areas

物理学および天文学（全般）

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10.1093/ptep/pty149

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引用スタイル

Ekawa, H., Agari, K., Ahn, J. K., Akaishi, T., Akazawa, Y., Ashikaga, S., Bassalleck, B., Bleser, S., Endo, Y., Fujikawa, Y., Fujioka, N., Fujita, M., Goto, R., Han, Y., Hasegawa, S., Hashimoto, T., Hayakawa, S., Hayakawa, T., Hayata, E., ... Zhang, Z. (2019). Observation of a Be double-Lambda hypernucleus in the J-PARC E07 experiment. Progress of Theoretical and Experimental Physics, 2019(2), [021D02]. https://doi.org/10.1093/ptep/pty149

Ekawa, H, Agari, K, Ahn, JK, Akaishi, T, Akazawa, Y, Ashikaga, S, Bassalleck, B, Bleser, S, Endo, Y, Fujikawa, Y, Fujioka, N, Fujita, M, Goto, R, Han, Y, Hasegawa, S, Hashimoto, T, Hayakawa, S, Hayakawa, T, Hayata, E, Hicks, K, Hirose, E, Hirose, M, Honda, R, Hoshino, K, Hoshino, S, Hosomi, K, Hwang, SH, Ichikawa, Y, Ichikawa, M, Ieiri, M, Imai, K, Inaba, K, Ishikawa, Y, Iskendir, A, Ito, H, Ito, K, Jung, WS, Kanatsuki, S, Kanauchi, H, Kasagi, A, Kawai, T, Kim, MH, Kim, SH, Kinbara, S, Kiuchi, R, Kobayashi, H, Kobayashi, K, Koike, T, Koshikawa, A, Lee, JY, Lee, JW, Ma, TL, Matsumoto, SY, Minakawa, M, Miwa, K, Moe, AT, Moon, TJ, Moritsu, M, Nagase, Y, Nakada, Y, Nakagawa, M, Nakashima, D, Nakazawa, K, Nanamura, T, Naruki, M, Nyaw, ANL, Ogura, Y, Ohashi, M, Oue, K, Ozawa, S, Pochodzalla, J, Ryu, SY, Sako, H, Sasaki, Y, Sato, S, Sato, Y, Schupp, F, Shirotori, K, Soe, MM, Soe, MK, Sohn, JY, Sugimura, H, Suzuki, KN, Takahashi, H, Takahashi, T, Takahashi, Y, Takeda, T, Tamura, H, Tanida, K, Theint, AMM, Tint, KT, Toyama, Y, Ukai, M, Umezaki, E, Watabe, T, Watanabe, K, Yamamoto, TO, Yang, SB, Yoon, CS, Yoshida, J, Yoshimoto, M, Zhang, DH & Zhang, Z 2019, 'Observation of a Be double-Lambda hypernucleus in the J-PARC E07 experiment', Progress of Theoretical and Experimental Physics, vol. 2019, no. 2, 021D02. https://doi.org/10.1093/ptep/pty149

@article{a2ed6a67cda8480eaf8f5b568b723127,

title = "Observation of a Be double-Lambda hypernucleus in the J-PARC E07 experiment",

abstract = "A double-Λ hypernucleus, ΛΛ Be, was observed by the J-PARC E07 Collaboration in nuclear emulsions tagged by the (K-, K+) reaction. This event was interpreted as the production and decay of _ΛΛ;10 Be, ΛΛ;11 Be, or ΛΛ;12 Be∗ via Xi- capture in 16 O. By assuming capture in the atomic 3D state, the binding energies of two Λ hyperons (B_ΛΛ) of these double-Λ hypernuclei are obtained to be 15.05 pm 0.11,mathrmMeV, 19.07 pm 0.11,mathrmMeV, and 13.68 pm 0.11,mathrmMeV, respectively. Based on the kinematic fitting, ΛΛ;11 Be is the most likely explanation for the observed event.",

keywords = "D14",

author = "H. Ekawa and K. Agari and Ahn, {J. K.} and T. Akaishi and Y. Akazawa and S. Ashikaga and B. Bassalleck and S. Bleser and Y. Endo and Y. Fujikawa and N. Fujioka and M. Fujita and R. Goto and Y. Han and S. Hasegawa and T. Hashimoto and Shuhei Hayakawa and T. Hayakawa and E. Hayata and K. Hicks and E. Hirose and M. Hirose and Ryotaro Honda and K. Hoshino and S. Hoshino and K. Hosomi and Hwang, {S. H.} and Y. Ichikawa and M. Ichikawa and M. Ieiri and K. Imai and K. Inaba and Y. Ishikawa and A. Iskendir and H. Ito and K. Ito and Jung, {W. S.} and S. Kanatsuki and H. Kanauchi and A. Kasagi and T. Kawai and Kim, {M. H.} and Kim, {S. H.} and S. Kinbara and R. Kiuchi and H. Kobayashi and K. Kobayashi and Takeshi Koike and A. Koshikawa and Lee, {J. Y.} and Lee, {J. W.} and Ma, {T. L.} and Matsumoto, {S. Y.} and M. Minakawa and K. Miwa and Moe, {A. T.} and Moon, {T. J.} and M. Moritsu and Y. Nagase and Y. Nakada and M. Nakagawa and D. Nakashima and K. Nakazawa and T. Nanamura and M. Naruki and Nyaw, {A. N.L.} and Y. Ogura and M. Ohashi and K. Oue and S. Ozawa and J. Pochodzalla and Ryu, {S. Y.} and H. Sako and Y. Sasaki and S. Sato and Y. Sato and F. Schupp and K. Shirotori and Soe, {M. M.} and Soe, {M. K.} and Sohn, {J. Y.} and H. Sugimura and Suzuki, {K. N.} and H. Takahashi and T. Takahashi and Y. Takahashi and T. Takeda and H. Tamura and K. Tanida and Theint, {A. M.M.} and Tint, {K. T.} and Y. Toyama and M. Ukai and E. Umezaki and T. Watabe and K. Watanabe and Yamamoto, {T. O.} and Yang, {S. B.} and Yoon, {C. S.} and J. Yoshida and M. Yoshimoto and Zhang, {D. H.} and Z. Zhang",

note = "Funding Information: We thank the staff members of the J-PARC accelerator and the hadron experimental facility for providing beams of both excellent and stable condition and enough time in spite of trouble with the beam extraction device. We are grateful to the staff of the FUJIFILM Corporation for producing our emulsion gel. We are grateful for the computational resources provided by the KEK computing research center. We are also grateful for the support of NII for SINET5. We would like to express thanks to the staff of the Kamioka Observatory, ICRR, for protecting our emulsion sheets in Kamioka mine against cosmic rays. This experiment was supported by Japan Society for the Promotion of Science (JSPS) KAKENHI Grant Numbers 23224006 and 16H02180, Ministry of Education, Culture, Sports, Science and Technology (MEXT) KAKENHI Grant Numbers 15001001 (Priority Area) and 24105002 (Innovative Area 2404), and National Research Foundation (NRF) of Korea with Grant Number 2018R1A2B2007757. S.B., J.P., and F.S. are supported by Deutscher Akademischer Austauschdienst (DAAD) PPP Japan 2017 57345296. Funding Information: We thank the staff members of the J-PARCaccelerator and the hadron experimental facility for providing beams of both excellent and stable condition and enough time in spite of trouble with the beam extraction device. We are grateful to the staff of the FUJIFILM Corporation for producing our emulsion gel. We are grateful for the computational resources provided by the KEK computing research center.We are also grateful for the support of NII for SINET5.We would like to express thanks to the staff of the Kamioka Observatory, ICRR, for protecting our emulsion sheets in Kamioka mine against cosmic rays. This experiment was supported by Japan Society for the Promotion of Science (JSPS) KAKENHI Grant Numbers 23224006 and 16H02180, Ministry of Education, Culture, Sports, Science and Technology (MEXT) KAKENHI Grant Numbers 15001001 (Priority Area) and 24105002 (Innovative Area 2404), and National Research Foundation (NRF) of Korea with Grant Number 2018R1A2B2007757. S.B., J.P., and F.S. are supported by Deutscher Akademischer Austauschdienst (DAAD) PPP Japan 2017 57345296. Publisher Copyright: {\textcopyright} 2019 The Author(s). Published by Oxford University Press on behalf of the Physical Society of Japan.",

year = "2019",

month = feb,

day = "1",

doi = "10.1093/ptep/pty149",

language = "English",

volume = "2019",

journal = "Progress of Theoretical and Experimental Physics",

issn = "2050-3911",

publisher = "Oxford University Press",

number = "2",

}

TY - JOUR

T1 - Observation of a Be double-Lambda hypernucleus in the J-PARC E07 experiment

AU - Ekawa, H.

AU - Agari, K.

AU - Ahn, J. K.

AU - Akaishi, T.

AU - Akazawa, Y.

AU - Ashikaga, S.

AU - Bassalleck, B.

AU - Bleser, S.

AU - Endo, Y.

AU - Fujikawa, Y.

AU - Fujioka, N.

AU - Fujita, M.

AU - Goto, R.

AU - Han, Y.

AU - Hasegawa, S.

AU - Hashimoto, T.

AU - Hayakawa, Shuhei

AU - Hayakawa, T.

AU - Hayata, E.

AU - Hicks, K.

AU - Hirose, E.

AU - Hirose, M.

AU - Honda, Ryotaro

AU - Hoshino, K.

AU - Hoshino, S.

AU - Hosomi, K.

AU - Hwang, S. H.

AU - Ichikawa, Y.

AU - Ichikawa, M.

AU - Ieiri, M.

AU - Imai, K.

AU - Inaba, K.

AU - Ishikawa, Y.

AU - Iskendir, A.

AU - Ito, H.

AU - Ito, K.

AU - Jung, W. S.

AU - Kanatsuki, S.

AU - Kanauchi, H.

AU - Kasagi, A.

AU - Kawai, T.

AU - Kim, M. H.

AU - Kim, S. H.

AU - Kinbara, S.

AU - Kiuchi, R.

AU - Kobayashi, H.

AU - Kobayashi, K.

AU - Koike, Takeshi

AU - Koshikawa, A.

AU - Lee, J. Y.

AU - Lee, J. W.

AU - Ma, T. L.

AU - Matsumoto, S. Y.

AU - Minakawa, M.

AU - Miwa, K.

AU - Moe, A. T.

AU - Moon, T. J.

AU - Moritsu, M.

AU - Nagase, Y.

AU - Nakada, Y.

AU - Nakagawa, M.

AU - Nakashima, D.

AU - Nakazawa, K.

AU - Nanamura, T.

AU - Naruki, M.

AU - Nyaw, A. N.L.

AU - Ogura, Y.

AU - Ohashi, M.

AU - Oue, K.

AU - Ozawa, S.

AU - Pochodzalla, J.

AU - Ryu, S. Y.

AU - Sako, H.

AU - Sasaki, Y.

AU - Sato, S.

AU - Sato, Y.

AU - Schupp, F.

AU - Shirotori, K.

AU - Soe, M. M.

AU - Soe, M. K.

AU - Sohn, J. Y.

AU - Sugimura, H.

AU - Suzuki, K. N.

AU - Takahashi, H.

AU - Takahashi, T.

AU - Takahashi, Y.

AU - Takeda, T.

AU - Tamura, H.

AU - Tanida, K.

AU - Theint, A. M.M.

AU - Tint, K. T.

AU - Toyama, Y.

AU - Ukai, M.

AU - Umezaki, E.

AU - Watabe, T.

AU - Watanabe, K.

AU - Yamamoto, T. O.

AU - Yang, S. B.

AU - Yoon, C. S.

AU - Yoshida, J.

AU - Yoshimoto, M.

AU - Zhang, D. H.

AU - Zhang, Z.

N1 - Funding Information: We thank the staff members of the J-PARC accelerator and the hadron experimental facility for providing beams of both excellent and stable condition and enough time in spite of trouble with the beam extraction device. We are grateful to the staff of the FUJIFILM Corporation for producing our emulsion gel. We are grateful for the computational resources provided by the KEK computing research center. We are also grateful for the support of NII for SINET5. We would like to express thanks to the staff of the Kamioka Observatory, ICRR, for protecting our emulsion sheets in Kamioka mine against cosmic rays. This experiment was supported by Japan Society for the Promotion of Science (JSPS) KAKENHI Grant Numbers 23224006 and 16H02180, Ministry of Education, Culture, Sports, Science and Technology (MEXT) KAKENHI Grant Numbers 15001001 (Priority Area) and 24105002 (Innovative Area 2404), and National Research Foundation (NRF) of Korea with Grant Number 2018R1A2B2007757. S.B., J.P., and F.S. are supported by Deutscher Akademischer Austauschdienst (DAAD) PPP Japan 2017 57345296. Funding Information: We thank the staff members of the J-PARCaccelerator and the hadron experimental facility for providing beams of both excellent and stable condition and enough time in spite of trouble with the beam extraction device. We are grateful to the staff of the FUJIFILM Corporation for producing our emulsion gel. We are grateful for the computational resources provided by the KEK computing research center.We are also grateful for the support of NII for SINET5.We would like to express thanks to the staff of the Kamioka Observatory, ICRR, for protecting our emulsion sheets in Kamioka mine against cosmic rays. This experiment was supported by Japan Society for the Promotion of Science (JSPS) KAKENHI Grant Numbers 23224006 and 16H02180, Ministry of Education, Culture, Sports, Science and Technology (MEXT) KAKENHI Grant Numbers 15001001 (Priority Area) and 24105002 (Innovative Area 2404), and National Research Foundation (NRF) of Korea with Grant Number 2018R1A2B2007757. S.B., J.P., and F.S. are supported by Deutscher Akademischer Austauschdienst (DAAD) PPP Japan 2017 57345296. Publisher Copyright: © 2019 The Author(s). Published by Oxford University Press on behalf of the Physical Society of Japan.

PY - 2019/2/1

Y1 - 2019/2/1

N2 - A double-Λ hypernucleus, ΛΛ Be, was observed by the J-PARC E07 Collaboration in nuclear emulsions tagged by the (K-, K+) reaction. This event was interpreted as the production and decay of _ΛΛ;10 Be, ΛΛ;11 Be, or ΛΛ;12 Be∗ via Xi- capture in 16 O. By assuming capture in the atomic 3D state, the binding energies of two Λ hyperons (B_ΛΛ) of these double-Λ hypernuclei are obtained to be 15.05 pm 0.11,mathrmMeV, 19.07 pm 0.11,mathrmMeV, and 13.68 pm 0.11,mathrmMeV, respectively. Based on the kinematic fitting, ΛΛ;11 Be is the most likely explanation for the observed event.

AB - A double-Λ hypernucleus, ΛΛ Be, was observed by the J-PARC E07 Collaboration in nuclear emulsions tagged by the (K-, K+) reaction. This event was interpreted as the production and decay of _ΛΛ;10 Be, ΛΛ;11 Be, or ΛΛ;12 Be∗ via Xi- capture in 16 O. By assuming capture in the atomic 3D state, the binding energies of two Λ hyperons (B_ΛΛ) of these double-Λ hypernuclei are obtained to be 15.05 pm 0.11,mathrmMeV, 19.07 pm 0.11,mathrmMeV, and 13.68 pm 0.11,mathrmMeV, respectively. Based on the kinematic fitting, ΛΛ;11 Be is the most likely explanation for the observed event.

KW - D14

UR - http://www.scopus.com/inward/record.url?scp=85082721683&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85082721683&partnerID=8YFLogxK

U2 - 10.1093/ptep/pty149

DO - 10.1093/ptep/pty149

M3 - Article

AN - SCOPUS:85082721683

SN - 2050-3911

VL - 2019

JO - Progress of Theoretical and Experimental Physics

JF - Progress of Theoretical and Experimental Physics

IS - 2

M1 - 021D02

ER -

Observation of a Be double-Lambda hypernucleus in the J-PARC E07 experiment

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