Backward-angle η photoproduction from protons at Eγ=1.6-2.4

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

doi:10.1103/PhysRevC.80.052201

Backward-angle η photoproduction from protons at Eγ=1.6-2.4

M. Sumihama, D. S. Ahn, J. K. Ahn, H. Akimune, Y. Asano, W. C. Chang, S. Daté, H. Ejiri, H. Fujimura, M. Fujiwara, S. Fukui, S. Hasegawa, K. Hicks, T. Hotta, K. Imai, T. Ishikawa, T. Iwata, Y. Kato, H. Kawai, K. KinoH. Kohri, N. Kumagai, T. Matsuda, T. Matsumura, T. Mibe, M. Miyabe, N. Muramatsu, T. Nakano, M. Niiyama, M. Nomachi, Y. Ohashi, H. Ohkuma, T. Ooba, D. S. Oshuev, C. Rangacharyulu, A. Sakaguchi, P. M. Shagin, Y. Shiino, A. Shimizu, H. Shimizu, Y. Sugaya, Y. Toi, 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

Differential cross sections for η photoproduction from protons have been measured at Eγ=1.6-2.4 GeV in the backward direction. A bump structure has been observed above 2.0 GeV in the total energy. No such bump is observed in η',ω, and π0 photoproductions. It is inferred that this unique structure in η photoproduction is due to a baryon resonance with a large ss̄ component that is strongly coupled to the ηN channel.

Original language	English
Article number	052201
Journal	Physical Review C - Nuclear Physics
Volume	80
Issue number	5
DOIs	https://doi.org/10.1103/PhysRevC.80.052201
State	Published - 30 Nov 2009

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Sumihama, M., Ahn, D. S., Ahn, J. K., Akimune, H., Asano, Y., Chang, W. C., Daté, S., Ejiri, H., Fujimura, H., Fujiwara, M., Fukui, S., Hasegawa, S., Hicks, K., Hotta, T., Imai, K., Ishikawa, T., Iwata, T., Kato, Y., Kawai, H., ... Zegers, R. G. T. (2009). Backward-angle η photoproduction from protons at Eγ=1.6-2.4. Physical Review C - Nuclear Physics, 80(5), Article 052201. https://doi.org/10.1103/PhysRevC.80.052201

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title = "Backward-angle η photoproduction from protons at Eγ=1.6-2.4",

abstract = "Differential cross sections for η photoproduction from protons have been measured at Eγ=1.6-2.4 GeV in the backward direction. A bump structure has been observed above 2.0 GeV in the total energy. No such bump is observed in η',ω, and π0 photoproductions. It is inferred that this unique structure in η photoproduction is due to a baryon resonance with a large s{\=s} component that is strongly coupled to the ηN channel.",

author = "M. Sumihama 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 S. Fukui and S. Hasegawa and K. Hicks and T. Hotta and K. Imai and T. Ishikawa and T. Iwata and Y. Kato and H. Kawai and K. Kino and H. Kohri and N. Kumagai and T. Matsuda and T. Matsumura and T. Mibe and M. Miyabe and N. Muramatsu and T. Nakano and M. Niiyama and M. Nomachi and Y. Ohashi and H. Ohkuma and T. Ooba and Oshuev, {D. S.} and C. Rangacharyulu and A. Sakaguchi and Shagin, {P. M.} and Y. Shiino and A. Shimizu and H. Shimizu and Y. Sugaya and Y. Toi 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.}",

year = "2009",

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doi = "10.1103/PhysRevC.80.052201",

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Sumihama, M, Ahn, DS, Ahn, JK, Akimune, H, Asano, Y, Chang, WC, Daté, S, Ejiri, H, Fujimura, H, Fujiwara, M, Fukui, S, Hasegawa, S, Hicks, K, Hotta, T, Imai, K, Ishikawa, T, Iwata, T, Kato, Y, Kawai, H, Kino, K, Kohri, H, Kumagai, N, Matsuda, T, Matsumura, T, Mibe, T, Miyabe, M, Muramatsu, N, Nakano, T, Niiyama, M, Nomachi, M, Ohashi, Y, Ohkuma, H, Ooba, T, Oshuev, DS, Rangacharyulu, C, Sakaguchi, A, Shagin, PM, Shiino, Y, Shimizu, A, Shimizu, H, Sugaya, Y, Toi, Y, Toyokawa, H, Wakai, A, Wang, CW, Wang, SC, Yonehara, K, Yorita, T, Yoshimura, M, Yosoi, M & Zegers, RGT 2009, 'Backward-angle η photoproduction from protons at Eγ=1.6-2.4', Physical Review C - Nuclear Physics, vol. 80, no. 5, 052201. https://doi.org/10.1103/PhysRevC.80.052201

TY - JOUR

T1 - Backward-angle η photoproduction from protons at Eγ=1.6-2.4

AU - Sumihama, M.

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 - Fukui, S.

AU - Hasegawa, S.

AU - Hicks, K.

AU - Hotta, T.

AU - Imai, K.

AU - Ishikawa, T.

AU - Iwata, T.

AU - Kato, Y.

AU - Kawai, H.

AU - Kino, K.

AU - Kohri, H.

AU - Kumagai, N.

AU - Matsuda, T.

AU - Matsumura, T.

AU - Mibe, T.

AU - Miyabe, M.

AU - Muramatsu, N.

AU - Nakano, T.

AU - Niiyama, M.

AU - Nomachi, M.

AU - Ohashi, Y.

AU - Ohkuma, H.

AU - Ooba, T.

AU - Oshuev, D. S.

AU - Rangacharyulu, C.

AU - Sakaguchi, A.

AU - Shagin, P. M.

AU - Shiino, Y.

AU - Shimizu, A.

AU - Shimizu, H.

AU - Sugaya, Y.

AU - Toi, Y.

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 - 2009/11/30

Y1 - 2009/11/30

N2 - Differential cross sections for η photoproduction from protons have been measured at Eγ=1.6-2.4 GeV in the backward direction. A bump structure has been observed above 2.0 GeV in the total energy. No such bump is observed in η',ω, and π0 photoproductions. It is inferred that this unique structure in η photoproduction is due to a baryon resonance with a large ss̄ component that is strongly coupled to the ηN channel.

AB - Differential cross sections for η photoproduction from protons have been measured at Eγ=1.6-2.4 GeV in the backward direction. A bump structure has been observed above 2.0 GeV in the total energy. No such bump is observed in η',ω, and π0 photoproductions. It is inferred that this unique structure in η photoproduction is due to a baryon resonance with a large ss̄ component that is strongly coupled to the ηN channel.

UR - http://www.scopus.com/inward/record.url?scp=73649118207&partnerID=8YFLogxK

U2 - 10.1103/PhysRevC.80.052201

DO - 10.1103/PhysRevC.80.052201

M3 - 期刊論文

AN - SCOPUS:73649118207

SN - 0556-2813

VL - 80

JO - Physical Review C - Nuclear Physics

JF - Physical Review C - Nuclear Physics

IS - 5

M1 - 052201

ER -

Backward-angle η photoproduction from protons at Eγ=1.6-2.4

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