Observation of a Ξ bound state in the 12C(K -, K +) reaction at 1.8 GeV /c

Tomofumi Nagae; Jung Keun Ahn; Yuya Akazawa; Kanae Aoki; Elena Botta; Hiroyuki Ekawa; Petr Evtoukhovitch; Alessandro Feliciello; Manami Fujita; Toshiyuki Gogami; Shoichi Hasegawa; Tomoyuki Hasegawa; Shuhei Hayakawa; Tomonori Hayakawa; Ryotaro Honda; Kenji Hosomi; Yudai Ichikawa; Ken'Ichi Imai; Wooseung Jung; Shunsuke Kanatsuki; Shinhyung Kim; Sinji Kinbara; Kazuya Kobayashi; Jaeyong Lee; Simonetta Marcello; Koji Miwa; Taejin Moon; Yoshiyuki Nakada; Manami Nakagawa; Takuya Nanamura; Megumi Naruki; Atsushi Sakaguchi; Hiroyuki Sako; Susumu Sato; Yuki Sasaki; Kotaro Shirotori; Hitoshi Sugimura; Toshiyuki Takahashi; Hirokazu Tamura; Kiyoshi Tanida; Zviadi Tsamalaidze; Mifuyu Ukai; Takeshi O. Yamamoto

doi:10.1063/1.5118383

Observation of a Ξ bound state in the ¹²C(K ^-, K ⁺) reaction at 1.8 GeV /c

Tomofumi Nagae, Jung Keun Ahn, Yuya Akazawa, Kanae Aoki, Elena Botta, Hiroyuki Ekawa, Petr Evtoukhovitch, Alessandro Feliciello, Manami Fujita, Toshiyuki Gogami, Shoichi Hasegawa, Tomoyuki Hasegawa, Shuhei Hayakawa, Tomonori Hayakawa, Ryotaro Honda, Kenji Hosomi, Yudai Ichikawa, Ken'Ichi Imai, Wooseung Jung, Shunsuke KanatsukiShinhyung Kim, Sinji Kinbara, Kazuya Kobayashi, Jaeyong Lee, Simonetta Marcello, Koji Miwa, Taejin Moon, Yoshiyuki Nakada, Manami Nakagawa, Takuya Nanamura, Megumi Naruki, Atsushi Sakaguchi, Hiroyuki Sako, Susumu Sato, Yuki Sasaki, Kotaro Shirotori, Hitoshi Sugimura, Toshiyuki Takahashi, Hirokazu Tamura, Kiyoshi Tanida, Zviadi Tsamalaidze, Mifuyu Ukai, Takeshi O. Yamamoto

理学研究科・物理学専攻

研究成果: Conference contribution

11 被引用数 (Scopus)

抄録

For the full understanding of baryon-baryon interactions in flavor SU(3), the ΞN interaction is the last missing piece of information. So far, we have revealed the ΛN interaction to be attractive (U_Λ ≈ 30 MeV), and ςN interaction to be repulsive in the medium to heavy mass-number region. The ΛΛ bonding energy is weakly attractive. While we have a few experimental observations suggesting the ΞN interaction would be attractive, there still exist large theoretical ambiguities weather it is attractive or not. Experimental determinations on the existence of bound states of Ξ hypernuclei by observing bound-state peaks are strongly awaited. In this report, a new preliminary result on the missing-mass spectrum of a ¹²C(K^-, K⁺) reaction, which strongly suggests the existence of Ξ-hypernuclear bound states, is presented.

本文言語	English
ホスト出版物のタイトル	13th International Conference on Hypernuclear and Strange Particle Physics, HYP 2018
編集者	Reinhard Schumacher, Liguang Tang
出版社	American Institute of Physics Inc.
ISBN（電子版）	9780735418721
DOI	https://doi.org/10.1063/1.5118383
出版ステータス	Published - 2019 7月 25
イベント	13th International Conference on Hypernuclear and Strange Particle Physics, HYP 2018 - Portsmouth, United States 継続期間: 2018 6月 24 → 2018 6月 29

出版物シリーズ

名前	AIP Conference Proceedings
巻	2130
ISSN（印刷版）	0094-243X
ISSN（電子版）	1551-7616

Conference

Conference	13th International Conference on Hypernuclear and Strange Particle Physics, HYP 2018
国/地域	United States
City	Portsmouth
Period	18/6/24 → 18/6/29

ASJC Scopus subject areas

物理学および天文学（全般）

文献へのアクセス

10.1063/1.5118383

他のファイルとリンク

引用スタイル

Nagae, T., Ahn, J. K., Akazawa, Y., Aoki, K., Botta, E., Ekawa, H., Evtoukhovitch, P., Feliciello, A., Fujita, M., Gogami, T., Hasegawa, S., Hasegawa, T., Hayakawa, S., Hayakawa, T., Honda, R., Hosomi, K., Ichikawa, Y., Imai, KI., Jung, W., ... Yamamoto, T. O. (2019). Observation of a Ξ bound state in the ¹²C(K ^-, K ⁺) reaction at 1.8 GeV /c. In R. Schumacher, & L. Tang (Eds.), 13th International Conference on Hypernuclear and Strange Particle Physics, HYP 2018 [020015] (AIP Conference Proceedings; Vol. 2130). American Institute of Physics Inc.. https://doi.org/10.1063/1.5118383

Observation of a Ξ bound state in the ¹²C(K ^-, K ⁺) reaction at 1.8 GeV /c. / Nagae, Tomofumi; Ahn, Jung Keun; Akazawa, Yuya その他.

13th International Conference on Hypernuclear and Strange Particle Physics, HYP 2018. ed. / Reinhard Schumacher; Liguang Tang. American Institute of Physics Inc., 2019. 020015 (AIP Conference Proceedings; Vol. 2130).

研究成果: Conference contribution

Nagae, T, Ahn, JK, Akazawa, Y, Aoki, K, Botta, E, Ekawa, H, Evtoukhovitch, P, Feliciello, A, Fujita, M, Gogami, T, Hasegawa, S, Hasegawa, T, Hayakawa, S, Hayakawa, T, Honda, R, Hosomi, K, Ichikawa, Y, Imai, KI, Jung, W, Kanatsuki, S, Kim, S, Kinbara, S, Kobayashi, K, Lee, J, Marcello, S, Miwa, K, Moon, T, Nakada, Y, Nakagawa, M, Nanamura, T, Naruki, M, Sakaguchi, A, Sako, H, Sato, S, Sasaki, Y, Shirotori, K, Sugimura, H, Takahashi, T, Tamura, H, Tanida, K, Tsamalaidze, Z, Ukai, M & Yamamoto, TO 2019, Observation of a Ξ bound state in the ¹²C(K ^-, K ⁺) reaction at 1.8 GeV /c. in R Schumacher & L Tang (eds), 13th International Conference on Hypernuclear and Strange Particle Physics, HYP 2018., 020015, AIP Conference Proceedings, vol. 2130, American Institute of Physics Inc., 13th International Conference on Hypernuclear and Strange Particle Physics, HYP 2018, Portsmouth, United States, 18/6/24. https://doi.org/10.1063/1.5118383

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title = "Observation of a Ξ bound state in the 12C(K -, K +) reaction at 1.8 GeV /c",

abstract = "For the full understanding of baryon-baryon interactions in flavor SU(3), the ΞN interaction is the last missing piece of information. So far, we have revealed the ΛN interaction to be attractive (UΛ ≈ 30 MeV), and ςN interaction to be repulsive in the medium to heavy mass-number region. The ΛΛ bonding energy is weakly attractive. While we have a few experimental observations suggesting the ΞN interaction would be attractive, there still exist large theoretical ambiguities weather it is attractive or not. Experimental determinations on the existence of bound states of Ξ hypernuclei by observing bound-state peaks are strongly awaited. In this report, a new preliminary result on the missing-mass spectrum of a 12C(K-, K+) reaction, which strongly suggests the existence of Ξ-hypernuclear bound states, is presented.",

author = "Tomofumi Nagae and Ahn, {Jung Keun} and Yuya Akazawa and Kanae Aoki and Elena Botta and Hiroyuki Ekawa and Petr Evtoukhovitch and Alessandro Feliciello and Manami Fujita and Toshiyuki Gogami and Shoichi Hasegawa and Tomoyuki Hasegawa and Shuhei Hayakawa and Tomonori Hayakawa and Ryotaro Honda and Kenji Hosomi and Yudai Ichikawa and Ken'Ichi Imai and Wooseung Jung and Shunsuke Kanatsuki and Shinhyung Kim and Sinji Kinbara and Kazuya Kobayashi and Jaeyong Lee and Simonetta Marcello and Koji Miwa and Taejin Moon and Yoshiyuki Nakada and Manami Nakagawa and Takuya Nanamura and Megumi Naruki and Atsushi Sakaguchi and Hiroyuki Sako and Susumu Sato and Yuki Sasaki and Kotaro Shirotori and Hitoshi Sugimura and Toshiyuki Takahashi and Hirokazu Tamura and Kiyoshi Tanida and Zviadi Tsamalaidze and Mifuyu Ukai and Yamamoto, {Takeshi O.}",

note = "Funding Information: The research and writing of this work was partially supported by JSPS KAKENHI Grant Numbers JP23000003 and JP16H02186, and JSPS Fellows 13J01075. Publisher Copyright: {\textcopyright} 2019 Author(s).; 13th International Conference on Hypernuclear and Strange Particle Physics, HYP 2018 ; Conference date: 24-06-2018 Through 29-06-2018",

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AU - Nagae, Tomofumi

AU - Ahn, Jung Keun

AU - Akazawa, Yuya

AU - Aoki, Kanae

AU - Botta, Elena

AU - Ekawa, Hiroyuki

AU - Evtoukhovitch, Petr

AU - Feliciello, Alessandro

AU - Fujita, Manami

AU - Gogami, Toshiyuki

AU - Hasegawa, Shoichi

AU - Hasegawa, Tomoyuki

AU - Hayakawa, Shuhei

AU - Hayakawa, Tomonori

AU - Honda, Ryotaro

AU - Hosomi, Kenji

AU - Ichikawa, Yudai

AU - Imai, Ken'Ichi

AU - Jung, Wooseung

AU - Kanatsuki, Shunsuke

AU - Kim, Shinhyung

AU - Kinbara, Sinji

AU - Kobayashi, Kazuya

AU - Lee, Jaeyong

AU - Marcello, Simonetta

AU - Miwa, Koji

AU - Moon, Taejin

AU - Nakada, Yoshiyuki

AU - Nakagawa, Manami

AU - Nanamura, Takuya

AU - Naruki, Megumi

AU - Sakaguchi, Atsushi

AU - Sako, Hiroyuki

AU - Sato, Susumu

AU - Sasaki, Yuki

AU - Shirotori, Kotaro

AU - Sugimura, Hitoshi

AU - Takahashi, Toshiyuki

AU - Tamura, Hirokazu

AU - Tanida, Kiyoshi

AU - Tsamalaidze, Zviadi

AU - Ukai, Mifuyu

AU - Yamamoto, Takeshi O.

N1 - Funding Information: The research and writing of this work was partially supported by JSPS KAKENHI Grant Numbers JP23000003 and JP16H02186, and JSPS Fellows 13J01075. Publisher Copyright: © 2019 Author(s).

PY - 2019/7/25

Y1 - 2019/7/25

N2 - For the full understanding of baryon-baryon interactions in flavor SU(3), the ΞN interaction is the last missing piece of information. So far, we have revealed the ΛN interaction to be attractive (UΛ ≈ 30 MeV), and ςN interaction to be repulsive in the medium to heavy mass-number region. The ΛΛ bonding energy is weakly attractive. While we have a few experimental observations suggesting the ΞN interaction would be attractive, there still exist large theoretical ambiguities weather it is attractive or not. Experimental determinations on the existence of bound states of Ξ hypernuclei by observing bound-state peaks are strongly awaited. In this report, a new preliminary result on the missing-mass spectrum of a 12C(K-, K+) reaction, which strongly suggests the existence of Ξ-hypernuclear bound states, is presented.

AB - For the full understanding of baryon-baryon interactions in flavor SU(3), the ΞN interaction is the last missing piece of information. So far, we have revealed the ΛN interaction to be attractive (UΛ ≈ 30 MeV), and ςN interaction to be repulsive in the medium to heavy mass-number region. The ΛΛ bonding energy is weakly attractive. While we have a few experimental observations suggesting the ΞN interaction would be attractive, there still exist large theoretical ambiguities weather it is attractive or not. Experimental determinations on the existence of bound states of Ξ hypernuclei by observing bound-state peaks are strongly awaited. In this report, a new preliminary result on the missing-mass spectrum of a 12C(K-, K+) reaction, which strongly suggests the existence of Ξ-hypernuclear bound states, is presented.

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BT - 13th International Conference on Hypernuclear and Strange Particle Physics, HYP 2018

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