### Abstract

The [Formula presented] reaction on [Formula presented] has been studied by measuring both [Formula presented] and [Formula presented] at forward angles. A sharp baryon resonance peak was observed at [Formula presented] with a width smaller than [Formula presented] and a Gaussian significance of [Formula presented]. The strangeness quantum number ([Formula presented]) of the baryon resonance is [Formula presented]. It can be interpreted as a molecular meson-baryon resonance or alternatively as an exotic five-quark state ([Formula presented]) that decays into a [Formula presented] and a neutron. The resonance is consistent with the lowest member of an antidecuplet of baryons predicted by the chiral soliton model.

Original language | English |
---|---|

Journal | Physical Review Letters |

Volume | 91 |

Issue number | 1 |

DOIs | |

Publication status | Published - 2003 Jul 3 |

Externally published | Yes |

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### ASJC Scopus subject areas

- Physics and Astronomy(all)

### Cite this

*Physical Review Letters*,

*91*(1). https://doi.org/10.1103/PhysRevLett.91.012002

**Evidence for a Narrow [Formula presented] Baryon Resonance in Photoproduction from the Neutron.** / Nakano, T.; Ahn, D. S.; Ahn, Jung Keun; 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.; 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, D. S.; Rangacharyulu, C.; Sakaguchi, A.; Sasaki, T.; Shagin, P. M.; Shiino, Y.; Shimizu, H.; Sugaya, Y.; Sumihama, M.; Toyokawa, H.; Wakai, A.; Wang, C. W.; Wang, S. C.; Yonehara, K.; Yorita, T.; Yoshimura, M.; Yosoi, M.; Zegers, R. G.T.

Research output: Contribution to journal › Article

*Physical Review Letters*, vol. 91, no. 1. https://doi.org/10.1103/PhysRevLett.91.012002

}

TY - JOUR

T1 - Evidence for a Narrow [Formula presented] Baryon Resonance in Photoproduction from the Neutron

AU - Nakano, T.

AU - Ahn, D. S.

AU - Ahn, Jung Keun

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.

PY - 2003/7/3

Y1 - 2003/7/3

N2 - The [Formula presented] reaction on [Formula presented] has been studied by measuring both [Formula presented] and [Formula presented] at forward angles. A sharp baryon resonance peak was observed at [Formula presented] with a width smaller than [Formula presented] and a Gaussian significance of [Formula presented]. The strangeness quantum number ([Formula presented]) of the baryon resonance is [Formula presented]. It can be interpreted as a molecular meson-baryon resonance or alternatively as an exotic five-quark state ([Formula presented]) that decays into a [Formula presented] and a neutron. The resonance is consistent with the lowest member of an antidecuplet of baryons predicted by the chiral soliton model.

AB - The [Formula presented] reaction on [Formula presented] has been studied by measuring both [Formula presented] and [Formula presented] at forward angles. A sharp baryon resonance peak was observed at [Formula presented] with a width smaller than [Formula presented] and a Gaussian significance of [Formula presented]. The strangeness quantum number ([Formula presented]) of the baryon resonance is [Formula presented]. It can be interpreted as a molecular meson-baryon resonance or alternatively as an exotic five-quark state ([Formula presented]) that decays into a [Formula presented] and a neutron. The resonance is consistent with the lowest member of an antidecuplet of baryons predicted by the chiral soliton model.

UR - http://www.scopus.com/inward/record.url?scp=85038318673&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85038318673&partnerID=8YFLogxK

U2 - 10.1103/PhysRevLett.91.012002

DO - 10.1103/PhysRevLett.91.012002

M3 - Article

AN - SCOPUS:85038318673

VL - 91

JO - Physical Review Letters

JF - Physical Review Letters

SN - 0031-9007

IS - 1

ER -