Near-threshold Λ(1520) production by the γ→p→K +Λ(1520) reaction at forward K+ angles

H. Kohri; D. S. Ahn; J. K. Ahn; H. Akimune; Y. Asano; W. C. Chang; S. Daté; H. Ejiri; S. Fukui; H. Fujimura; M. Fujiwara; S. Hasegawa; K. Hicks; A. Hosaka; T. Hotta; K. Imai; T. Ishikawa; T. Iwata; H. Kawai; Z. Y. Kim; K. Kino; N. Kumagai; S. Makino; T. Matsuda; T. Matsumura; N. Matsuoka; T. Mibe; M. Miyabe; Y. Miyachi; M. Morita; N. Muramatsu; T. Nakano; S. I. Nam; M. Niiyama; M. Nomachi; Y. Ohashi; H. Ohkuma; T. Ooba; D. S. Oshuev; C. Rangacharyulu; A. Sakaguchi; T. Sasaki; P. M. Shagin; Y. Shiino; A. Shimizu; H. Shimizu; Y. Sugaya; M. Sumihama; A. I. Titov; 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/PhysRevLett.104.172001

Near-threshold Λ(1520) production by the γ→p→K ⁺Λ(1520) reaction at forward K⁺ angles

H. Kohri^*
, D. S. Ahn
, J. K. Ahn
, H. Akimune
, Y. Asano
, W. C. Chang
, S. Daté
, H. Ejiri
, S. Fukui
, H. Fujimura
, M. Fujiwara
, S. Hasegawa
, K. Hicks
, A. Hosaka
, T. Hotta
, K. Imai
, T. Ishikawa
, T. Iwata
, H. Kawai
, Z. Y. Kim

K. Kino, N. Kumagai, S. Makino, T. Matsuda, T. Matsumura, N. Matsuoka, T. Mibe, M. Miyabe, Y. Miyachi, M. Morita, N. Muramatsu, T. Nakano, S. I. Nam, M. Niiyama, M. Nomachi, Y. Ohashi, H. Ohkuma, T. Ooba, D. S. Oshuev, C. Rangacharyulu, A. Sakaguchi, T. Sasaki, P. M. Shagin, Y. Shiino, A. Shimizu, H. Shimizu, Y. Sugaya, M. Sumihama, A. I. Titov, Y. Toi, H. Toyokawa, A. Wakai, C. W. Wang, S. C. Wang, K. Yonehara, T. Yorita, M. Yoshimura, M. Yosoi, R. G.T. Zegers

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

49 Citations (Scopus)

Abstract

Differential cross sections and photon-beam asymmetries for the γ→p→K⁺Λ(1520) reaction have been measured with linearly polarized photon beams at energies from the threshold to 2.4 GeV at 0.6<cos θc.m.K<1. A new bump structure was found at W 2.11GeV in the cross sections. The bump is not well reproduced by theoretical calculations introducing a nucleon resonance with J≤32. This result suggests that the bump might be produced by a nucleon resonance possibly with J 52 or by a new reaction process, for example, an interference effect with the φ photoproduction having a similar bump structure in the cross sections.

Original language	English
Article number	172001
Journal	Physical review letters
Volume	104
Issue number	17
DOIs	https://doi.org/10.1103/PhysRevLett.104.172001
Publication status	Published - 2010 Apr 26
Externally published	Yes

ASJC Scopus subject areas

General Physics and Astronomy

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10.1103/PhysRevLett.104.172001

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Kohri, H., Ahn, D. S., Ahn, J. K., Akimune, H., Asano, Y., Chang, W. C., Daté, S., Ejiri, H., Fukui, S., Fujimura, H., Fujiwara, M., Hasegawa, S., Hicks, K., Hosaka, A., Hotta, T., Imai, K., Ishikawa, T., Iwata, T., Kawai, H., ... Zegers, R. G. T. (2010). Near-threshold Λ(1520) production by the γ→p→K ⁺Λ(1520) reaction at forward K⁺ angles. Physical review letters, 104(17), Article 172001. https://doi.org/10.1103/PhysRevLett.104.172001

Kohri, H, Ahn, DS, Ahn, JK, Akimune, H, Asano, Y, Chang, WC, Daté, S, Ejiri, H, Fukui, S, Fujimura, H, Fujiwara, M, Hasegawa, S, Hicks, K, Hosaka, A, Hotta, T, Imai, K, Ishikawa, T, Iwata, T, Kawai, H, Kim, ZY, Kino, K, Kumagai, N, Makino, S, Matsuda, T, Matsumura, T, Matsuoka, N, Mibe, T, Miyabe, M, Miyachi, Y, Morita, M, Muramatsu, N, Nakano, T, Nam, SI, Niiyama, M, Nomachi, M, Ohashi, Y, Ohkuma, H, Ooba, T, Oshuev, DS, Rangacharyulu, C, Sakaguchi, A, Sasaki, T, Shagin, PM, Shiino, Y, Shimizu, A, Shimizu, H, Sugaya, Y, Sumihama, M, Titov, AI, Toi, Y, Toyokawa, H, Wakai, A, Wang, CW, Wang, SC, Yonehara, K, Yorita, T, Yoshimura, M, Yosoi, M & Zegers, RGT 2010, 'Near-threshold Λ(1520) production by the γ→p→K ⁺Λ(1520) reaction at forward K⁺ angles', Physical review letters, vol. 104, no. 17, 172001. https://doi.org/10.1103/PhysRevLett.104.172001

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title = "Near-threshold Λ(1520) production by the γ→p→K +Λ(1520) reaction at forward K+ angles",

abstract = "Differential cross sections and photon-beam asymmetries for the γ→p→K+Λ(1520) reaction have been measured with linearly polarized photon beams at energies from the threshold to 2.4 GeV at 0.6",

author = "H. Kohri 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 S. Fukui and H. Fujimura and M. Fujiwara and S. Hasegawa and K. Hicks and A. Hosaka and T. Hotta and K. Imai and T. Ishikawa and T. Iwata and H. Kawai and Kim, \{Z. Y.\} and K. Kino and N. Kumagai and S. Makino and T. Matsuda and T. Matsumura and N. Matsuoka and T. Mibe and M. Miyabe and Y. Miyachi and M. Morita and N. Muramatsu and T. Nakano and Nam, \{S. I.\} 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 T. Sasaki and Shagin, \{P. M.\} and Y. Shiino and A. Shimizu and H. Shimizu and Y. Sugaya and M. Sumihama and Titov, \{A. I.\} 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.\}",

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doi = "10.1103/PhysRevLett.104.172001",

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AU - Kohri, H.

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 - Fukui, S.

AU - Fujimura, H.

AU - Fujiwara, M.

AU - Hasegawa, S.

AU - Hicks, K.

AU - Hosaka, A.

AU - Hotta, T.

AU - Imai, K.

AU - Ishikawa, T.

AU - Iwata, T.

AU - Kawai, H.

AU - Kim, Z. Y.

AU - Kino, K.

AU - Kumagai, N.

AU - Makino, S.

AU - Matsuda, T.

AU - Matsumura, T.

AU - Matsuoka, N.

AU - Mibe, T.

AU - Miyabe, M.

AU - Miyachi, Y.

AU - Morita, M.

AU - Muramatsu, N.

AU - Nakano, T.

AU - Nam, S. I.

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 - Sasaki, T.

AU - Shagin, P. M.

AU - Shiino, Y.

AU - Shimizu, A.

AU - Shimizu, H.

AU - Sugaya, Y.

AU - Sumihama, M.

AU - Titov, A. I.

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 - 2010/4/26

Y1 - 2010/4/26

N2 - Differential cross sections and photon-beam asymmetries for the γ→p→K+Λ(1520) reaction have been measured with linearly polarized photon beams at energies from the threshold to 2.4 GeV at 0.6

AB - Differential cross sections and photon-beam asymmetries for the γ→p→K+Λ(1520) reaction have been measured with linearly polarized photon beams at energies from the threshold to 2.4 GeV at 0.6

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DO - 10.1103/PhysRevLett.104.172001

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JF - Physical review letters

IS - 17

M1 - 172001

ER -

Near-threshold Λ(1520) production by the γ→p→K ⁺Λ(1520) reaction at forward K⁺ angles

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