Evidence for a narrow S = +1 baryon resonance in photoproduction from the neutron

T. Nakano; D. S. Ahn; J. K. Ahn; H. Akimune; Y. Asano; W. C. Chang; S. Daté; H. Ejiri; H. Fujimura; M. Fujiwara; K. Hicks; T. Hotta; K. Imai; T. Ishikawa; T. Iwata; H. Kawai; Z. Y. Kim; K. Kino; H. Kohri; N. Kumagai; S. Makino; T. Matsumura; N. Matsuoka; T. Mibe; K. Miwa; M. Miyabe; Y. Miyachi; M. Morita; N. Muramatsu; M. Niiyama; M. Nomachi; Y. Ohashi; T. Ooba; H. Ohkuma; D. S. Oshuev; C. Rangacharyulu; A. Sakaguchi; T. Sasaki; P. M. Shagin; Y. Shiino; H. Shimizu; Y. Sugaya; M. Sumihama; H. Toyokawa; A. Wakai; C. W. Wang; S. C. Wang; K. Yonehara; T. Yorita; M. Yoshimura; M. Yosoi; R. G.T. Zegers

Evidence for a narrow S = +1 baryon resonance in photoproduction from the neutron

T. Nakano, D. S. Ahn, J. K. Ahn, H. Akimune, Y. Asano, W. C. Chang, S. Daté, H. Ejiri, H. Fujimura, M. Fujiwara, K. Hicks, T. Hotta, K. Imai, T. Ishikawa, T. Iwata, H. Kawai, Z. Y. Kim, K. Kino, H. Kohri, N. KumagaiS. Makino, T. Matsumura, N. Matsuoka, T. Mibe, K. Miwa, M. Miyabe, Y. Miyachi, M. Morita, N. Muramatsu, M. Niiyama, M. Nomachi, Y. Ohashi, T. Ooba, H. Ohkuma, D. S. Oshuev, C. Rangacharyulu, A. Sakaguchi, T. Sasaki, P. M. Shagin, Y. Shiino, H. Shimizu, Y. Sugaya, M. Sumihama, H. Toyokawa, A. Wakai, C. W. Wang, S. C. Wang, K. Yonehara, T. Yorita, M. Yoshimura, M. Yosoi, R. G.T. Zegers

Department of Biomedical Sciences and Engineering

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Abstract

A search for an S=+1 baryon resonances in the K^- missing-mass spectrum of the γn→K⁺K^-n reaction on ¹²C, using a newly built photon-beam facility at the SPring-8. As such, a sharp baryon resonance peak was found at 1.54±0.01 GeV/c² in the K^- missing-mass spectrum that was corrected for the Fermi motion. It was indicated that the existence of an S=+1 resonance which may be attributed to the molecular meson-baryon resonance or alternatively as an exotic five-quark baryon proposed as the Z⁺.

Original language	English
Article number	012002
Pages (from-to)	012002/1-012002/4
Journal	Physical Review Letters
Volume	91
Issue number	1
State	Published - 4 Jul 2003

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Nakano, T., Ahn, D. S., Ahn, J. K., Akimune, H., Asano, Y., Chang, W. C., Daté, S., Ejiri, H., Fujimura, H., Fujiwara, M., Hicks, K., Hotta, T., Imai, K., Ishikawa, T., Iwata, T., Kawai, H., Kim, Z. Y., Kino, K., Kohri, H., ... Zegers, R. G. T. (2003). Evidence for a narrow S = +1 baryon resonance in photoproduction from the neutron. Physical Review Letters, 91(1), 012002/1-012002/4. Article 012002.

@article{27248e0791f54dfc98d25d292eaf5d2f,

title = "Evidence for a narrow S = +1 baryon resonance in photoproduction from the neutron",

abstract = "A search for an S=+1 baryon resonances in the K- missing-mass spectrum of the γn→K+K-n reaction on 12C, using a newly built photon-beam facility at the SPring-8. As such, a sharp baryon resonance peak was found at 1.54±0.01 GeV/c2 in the K- missing-mass spectrum that was corrected for the Fermi motion. It was indicated that the existence of an S=+1 resonance which may be attributed to the molecular meson-baryon resonance or alternatively as an exotic five-quark baryon proposed as the Z+.",

author = "T. Nakano and Ahn, {D. S.} and Ahn, {J. K.} and H. Akimune and Y. Asano and Chang, {W. C.} and S. Dat{\'e} and H. Ejiri and H. Fujimura and M. Fujiwara and K. Hicks and T. Hotta and K. Imai and T. Ishikawa and T. Iwata and H. Kawai and Kim, {Z. Y.} and K. Kino and H. Kohri and N. Kumagai and S. Makino and T. Matsumura and N. Matsuoka and T. Mibe and K. Miwa and M. Miyabe and Y. Miyachi and M. Morita and N. Muramatsu and M. Niiyama and M. Nomachi and Y. Ohashi and T. Ooba and H. Ohkuma and Oshuev, {D. S.} and C. Rangacharyulu and A. Sakaguchi and T. Sasaki and Shagin, {P. M.} and Y. Shiino and H. Shimizu and Y. Sugaya and M. Sumihama and H. Toyokawa and A. Wakai and Wang, {C. W.} and Wang, {S. C.} and K. Yonehara and T. Yorita and M. Yoshimura and M. Yosoi and Zegers, {R. G.T.}",

note = "Funding Information: NUPABL 10.1016/S0375-9474(01)00490-0 0375-9474 A684 , 71c ( 2001 ). R. G. T. Zegers , nucl-ex/0302005 . The authors gratefully acknowledge the dedicated efforts of the staff of the SPring-8 for providing a good quality beam. We thank Dr. T. Sato (Osaka University), Dr. A. Hosaka (RCNP), and Dr. A. Titov (JINR) for helpful discussions. This research was supported in part by the Ministry of Education, Science, Sports and Culture of Japan, by the National Science Council of Republic of China (Taiwan), and by KOSEF of Republic of Korea. ",

year = "2003",

month = jul,

day = "4",

language = "???core.languages.en_GB???",

volume = "91",

pages = "012002/1--012002/4",

journal = "Physical Review Letters",

issn = "0031-9007",

number = "1",

}

Nakano, T, Ahn, DS, Ahn, JK, Akimune, H, Asano, Y, Chang, WC, Daté, S, Ejiri, H, Fujimura, H, Fujiwara, M, Hicks, K, Hotta, T, Imai, K, Ishikawa, T, Iwata, T, Kawai, H, Kim, ZY, Kino, K, Kohri, H, Kumagai, N, Makino, S, Matsumura, T, Matsuoka, N, Mibe, T, Miwa, K, Miyabe, M, Miyachi, Y, Morita, M, Muramatsu, N, Niiyama, M, Nomachi, M, Ohashi, Y, Ooba, T, Ohkuma, H, Oshuev, DS, Rangacharyulu, C, Sakaguchi, A, Sasaki, T, Shagin, PM, Shiino, Y, Shimizu, H, Sugaya, Y, Sumihama, M, Toyokawa, H, Wakai, A, Wang, CW, Wang, SC, Yonehara, K, Yorita, T, Yoshimura, M, Yosoi, M & Zegers, RGT 2003, 'Evidence for a narrow S = +1 baryon resonance in photoproduction from the neutron', Physical Review Letters, vol. 91, no. 1, 012002, pp. 012002/1-012002/4.

TY - JOUR

T1 - Evidence for a narrow S = +1 baryon resonance in photoproduction from the neutron

AU - Nakano, T.

AU - Ahn, D. S.

AU - Ahn, J. K.

AU - Akimune, H.

AU - Asano, Y.

AU - Chang, W. C.

AU - Daté, S.

AU - Ejiri, H.

AU - Fujimura, H.

AU - Fujiwara, M.

AU - Hicks, K.

AU - Hotta, T.

AU - Imai, K.

AU - Ishikawa, T.

AU - Iwata, T.

AU - Kawai, H.

AU - Kim, Z. Y.

AU - Kino, K.

AU - Kohri, H.

AU - Kumagai, N.

AU - Makino, S.

AU - Matsumura, T.

AU - Matsuoka, N.

AU - Mibe, T.

AU - Miwa, K.

AU - Miyabe, M.

AU - Miyachi, Y.

AU - Morita, M.

AU - Muramatsu, N.

AU - Niiyama, M.

AU - Nomachi, M.

AU - Ohashi, Y.

AU - Ooba, T.

AU - Ohkuma, H.

AU - Oshuev, D. S.

AU - Rangacharyulu, C.

AU - Sakaguchi, A.

AU - Sasaki, T.

AU - Shagin, P. M.

AU - Shiino, Y.

AU - Shimizu, H.

AU - Sugaya, Y.

AU - Sumihama, M.

AU - Toyokawa, H.

AU - Wakai, A.

AU - Wang, C. W.

AU - Wang, S. C.

AU - Yonehara, K.

AU - Yorita, T.

AU - Yoshimura, M.

AU - Yosoi, M.

AU - Zegers, R. G.T.

N1 - Funding Information: NUPABL 10.1016/S0375-9474(01)00490-0 0375-9474 A684 , 71c ( 2001 ). R. G. T. Zegers , nucl-ex/0302005 . The authors gratefully acknowledge the dedicated efforts of the staff of the SPring-8 for providing a good quality beam. We thank Dr. T. Sato (Osaka University), Dr. A. Hosaka (RCNP), and Dr. A. Titov (JINR) for helpful discussions. This research was supported in part by the Ministry of Education, Science, Sports and Culture of Japan, by the National Science Council of Republic of China (Taiwan), and by KOSEF of Republic of Korea.

PY - 2003/7/4

Y1 - 2003/7/4

N2 - A search for an S=+1 baryon resonances in the K- missing-mass spectrum of the γn→K+K-n reaction on 12C, using a newly built photon-beam facility at the SPring-8. As such, a sharp baryon resonance peak was found at 1.54±0.01 GeV/c2 in the K- missing-mass spectrum that was corrected for the Fermi motion. It was indicated that the existence of an S=+1 resonance which may be attributed to the molecular meson-baryon resonance or alternatively as an exotic five-quark baryon proposed as the Z+.

AB - A search for an S=+1 baryon resonances in the K- missing-mass spectrum of the γn→K+K-n reaction on 12C, using a newly built photon-beam facility at the SPring-8. As such, a sharp baryon resonance peak was found at 1.54±0.01 GeV/c2 in the K- missing-mass spectrum that was corrected for the Fermi motion. It was indicated that the existence of an S=+1 resonance which may be attributed to the molecular meson-baryon resonance or alternatively as an exotic five-quark baryon proposed as the Z+.

UR - http://www.scopus.com/inward/record.url?scp=0042208381&partnerID=8YFLogxK

M3 - 期刊論文

AN - SCOPUS:0042208381

SN - 0031-9007

VL - 91

SP - 012002/1-012002/4

JO - Physical Review Letters

JF - Physical Review Letters

IS - 1

M1 - 012002

ER -

Evidence for a narrow S = +1 baryon resonance in photoproduction from the neutron

Abstract

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