Non-strange dibaryons studied in coherent double neutral-meson photoproduction on the deuteron

T. Ishikawa; H. Fujimura; H. Fukasawa; R. Hashimoto; Q. He; Y. Honda; T. Iwata; S. Kaida; Hiroki Kanda; J. Kasagi; A. Kawano; S. Kuwasaki; K. Maeda; S. Masumoto; M. Miyabe; F. Miyahara; K. Mochizuki; N. Muramatsu; A. Nakamura; K. Nawa; S. Ogushi; Y. Okada; Y. Onodera; K. Ozawa; Y. Sakamoto; M. Sato; Hajime Shimizu; Hiroyuki Sugai; K. Suzuki; Y. Tajima; S. Takahashi; Y. Taniguchi; Y. Tsuchikawa; Hirohito Yamazaki; R. Yamazaki; H. Y. Yoshida

doi:10.5506/APhysPolB.51.329

Non-strange dibaryons studied in coherent double neutral-meson photoproduction on the deuteron

T. Ishikawa, H. Fujimura, H. Fukasawa, R. Hashimoto, Q. He, Y. Honda, T. Iwata, S. Kaida, Hiroki Kanda, J. Kasagi, A. Kawano, S. Kuwasaki, K. Maeda, S. Masumoto, M. Miyabe, F. Miyahara, K. Mochizuki, N. Muramatsu, A. Nakamura, K. NawaS. Ogushi, Y. Okada, Y. Onodera, K. Ozawa, Y. Sakamoto, M. Sato, Hajime Shimizu, Hiroyuki Sugai, K. Suzuki, Y. Tajima, S. Takahashi, Y. Taniguchi, Y. Tsuchikawa, Hirohito Yamazaki, R. Yamazaki, H. Y. Yoshida

電子光理学研究センター

研究成果: Article › 査読

2 被引用数 (Scopus)

抄録

We have investigated the γd → π⁰π⁰d reaction to study dibaryon resonances. The total cross section as a function of the γd center-of-mass energy shows resonance-like behavior peaked at around 2.47 and 2.63 GeV. The measured angular distribution of deuteron emission is rather flat, which cannot be reproduced by kinematics for quasi-free π⁰π⁰ production with deuteron coalescence. A clear peak is observed at 2.14 GeV in the π⁰d invariant-mass distributions. The present work shows a sequential process γd → R_IS → π⁰R_IV → π⁰π⁰d is dominant with two 2.47- and 2.63-GeV isoscalar dibaryons (R_IS) and a 2.14-GeV isovector dibaryon (R_IV).

本文言語	English
ページ（範囲）	329-332
ページ数	4
ジャーナル	Acta Physica Polonica B
巻	51
号	1
DOI	https://doi.org/10.5506/APhysPolB.51.329
出版ステータス	Published - 2020

ASJC Scopus subject areas

物理学および天文学（全般）

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10.5506/APhysPolB.51.329

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Ishikawa, T., Fujimura, H., Fukasawa, H., Hashimoto, R., He, Q., Honda, Y., Iwata, T., Kaida, S., Kanda, H., Kasagi, J., Kawano, A., Kuwasaki, S., Maeda, K., Masumoto, S., Miyabe, M., Miyahara, F., Mochizuki, K., Muramatsu, N., Nakamura, A., ... Yoshida, H. Y. (2020). Non-strange dibaryons studied in coherent double neutral-meson photoproduction on the deuteron. Acta Physica Polonica B, 51(1), 329-332. https://doi.org/10.5506/APhysPolB.51.329

Ishikawa, T, Fujimura, H, Fukasawa, H, Hashimoto, R, He, Q, Honda, Y, Iwata, T, Kaida, S, Kanda, H, Kasagi, J, Kawano, A, Kuwasaki, S, Maeda, K, Masumoto, S, Miyabe, M, Miyahara, F, Mochizuki, K, Muramatsu, N, Nakamura, A, Nawa, K, Ogushi, S, Okada, Y, Onodera, Y, Ozawa, K, Sakamoto, Y, Sato, M, Shimizu, H, Sugai, H, Suzuki, K, Tajima, Y, Takahashi, S, Taniguchi, Y, Tsuchikawa, Y, Yamazaki, H, Yamazaki, R & Yoshida, HY 2020, 'Non-strange dibaryons studied in coherent double neutral-meson photoproduction on the deuteron', Acta Physica Polonica B, vol. 51, no. 1, pp. 329-332. https://doi.org/10.5506/APhysPolB.51.329

@article{c7fa731088984fa783b8e983fa7a32ce,

title = "Non-strange dibaryons studied in coherent double neutral-meson photoproduction on the deuteron",

abstract = "We have investigated the γd → π0π0d reaction to study dibaryon resonances. The total cross section as a function of the γd center-of-mass energy shows resonance-like behavior peaked at around 2.47 and 2.63 GeV. The measured angular distribution of deuteron emission is rather flat, which cannot be reproduced by kinematics for quasi-free π0π0 production with deuteron coalescence. A clear peak is observed at 2.14 GeV in the π0d invariant-mass distributions. The present work shows a sequential process γd → RIS → π0RIV → π0π0d is dominant with two 2.47- and 2.63-GeV isoscalar dibaryons (RIS) and a 2.14-GeV isovector dibaryon (RIV).",

author = "T. Ishikawa and H. Fujimura and H. Fukasawa and R. Hashimoto and Q. He and Y. Honda and T. Iwata and S. Kaida and Hiroki Kanda and J. Kasagi and A. Kawano and S. Kuwasaki and K. Maeda and S. Masumoto and M. Miyabe and F. Miyahara and K. Mochizuki and N. Muramatsu and A. Nakamura and K. Nawa and S. Ogushi and Y. Okada and Y. Onodera and K. Ozawa and Y. Sakamoto and M. Sato and Hajime Shimizu and Hiroyuki Sugai and K. Suzuki and Y. Tajima and S. Takahashi and Y. Taniguchi and Y. Tsuchikawa and Hirohito Yamazaki and R. Yamazaki and Yoshida, {H. Y.}",

note = "Funding Information: The authors express gratitude to the ELPH staff for assistance during the FOREST experiments. This work was supported in part by JSPS KAKENHI grants Nos. 17340063, 19002003, 24244022, 26400287, 16H02188, 19H01902, and 19H05141. Publisher Copyright: {\textcopyright} 2020 Jagellonian University. All rights reserved.",

year = "2020",

doi = "10.5506/APhysPolB.51.329",

language = "English",

volume = "51",

pages = "329--332",

journal = "Acta Physica Polonica, Series B.",

issn = "0587-4254",

publisher = "Jagellonian University",

number = "1",

}

TY - JOUR

T1 - Non-strange dibaryons studied in coherent double neutral-meson photoproduction on the deuteron

AU - Ishikawa, T.

AU - Fujimura, H.

AU - Fukasawa, H.

AU - Hashimoto, R.

AU - He, Q.

AU - Honda, Y.

AU - Iwata, T.

AU - Kaida, S.

AU - Kanda, Hiroki

AU - Kasagi, J.

AU - Kawano, A.

AU - Kuwasaki, S.

AU - Maeda, K.

AU - Masumoto, S.

AU - Miyabe, M.

AU - Miyahara, F.

AU - Mochizuki, K.

AU - Muramatsu, N.

AU - Nakamura, A.

AU - Nawa, K.

AU - Ogushi, S.

AU - Okada, Y.

AU - Onodera, Y.

AU - Ozawa, K.

AU - Sakamoto, Y.

AU - Sato, M.

AU - Shimizu, Hajime

AU - Sugai, Hiroyuki

AU - Suzuki, K.

AU - Tajima, Y.

AU - Takahashi, S.

AU - Taniguchi, Y.

AU - Tsuchikawa, Y.

AU - Yamazaki, Hirohito

AU - Yamazaki, R.

AU - Yoshida, H. Y.

N1 - Funding Information: The authors express gratitude to the ELPH staff for assistance during the FOREST experiments. This work was supported in part by JSPS KAKENHI grants Nos. 17340063, 19002003, 24244022, 26400287, 16H02188, 19H01902, and 19H05141. Publisher Copyright: © 2020 Jagellonian University. All rights reserved.

PY - 2020

Y1 - 2020

N2 - We have investigated the γd → π0π0d reaction to study dibaryon resonances. The total cross section as a function of the γd center-of-mass energy shows resonance-like behavior peaked at around 2.47 and 2.63 GeV. The measured angular distribution of deuteron emission is rather flat, which cannot be reproduced by kinematics for quasi-free π0π0 production with deuteron coalescence. A clear peak is observed at 2.14 GeV in the π0d invariant-mass distributions. The present work shows a sequential process γd → RIS → π0RIV → π0π0d is dominant with two 2.47- and 2.63-GeV isoscalar dibaryons (RIS) and a 2.14-GeV isovector dibaryon (RIV).

AB - We have investigated the γd → π0π0d reaction to study dibaryon resonances. The total cross section as a function of the γd center-of-mass energy shows resonance-like behavior peaked at around 2.47 and 2.63 GeV. The measured angular distribution of deuteron emission is rather flat, which cannot be reproduced by kinematics for quasi-free π0π0 production with deuteron coalescence. A clear peak is observed at 2.14 GeV in the π0d invariant-mass distributions. The present work shows a sequential process γd → RIS → π0RIV → π0π0d is dominant with two 2.47- and 2.63-GeV isoscalar dibaryons (RIS) and a 2.14-GeV isovector dibaryon (RIV).

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U2 - 10.5506/APhysPolB.51.329

DO - 10.5506/APhysPolB.51.329

M3 - Article

AN - SCOPUS:85078571656

VL - 51

SP - 329

EP - 332

JO - Acta Physica Polonica, Series B.

JF - Acta Physica Polonica, Series B.

SN - 0587-4254

IS - 1

ER -

Non-strange dibaryons studied in coherent double neutral-meson photoproduction on the deuteron

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