Near-threshold photoproduction of Λ(1520) from protons and deuterons

N. Muramatsu; J. Y. Chen; W. C. Chang; D. S. Ahn; J. K. Ahn; H. Akimune; Y. Asano; S. Daté; H. Ejiri; H. Fujimura; M. Fujiwara; S. Fukui; S. Hasegawa; K. Hicks; K. Horie; T. Hotta; K. Imai; T. Ishikawa; T. Iwata; Y. Kato; H. Kawai; K. Kino; H. Kohri; N. Kumagai; S. Makino; T. Matsuda; T. Matsumura; N. Matsuoka; T. Mibe; M. Miyabe; M. Miyachi; T. Nakano; M. Niiyama; M. Nomachi; Y. Ohashi; H. Ohkuma; T. Ooba; D. S. Oshuev; C. Rangacharyulu; A. Sakaguchi; P. M. Shagin; Y. Shiino; H. Shimizu; Y. Sugaya; M. Sumihama; 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.103.012001

Near-threshold photoproduction of Λ(1520) from protons and deuterons

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

生醫科學與工程學系

研究成果: 雜誌貢獻 › 期刊論文 › 同行評審

36 引文斯高帕斯（Scopus）

摘要

Photoproduction of Λ(1520) with liquid hydrogen and deuterium targets was examined at photon energies below 2.4GeV in the SPring-8 LEPS experiment. For the first time, the differential cross sections were measured at low energies and with a deuterium target. A large asymmetry of the production cross sections from protons and neutrons was observed at backward K+/0 angles. This suggests the importance of the contact term, which coexists with t-channel K exchange under gauge invariance. This interpretation was compatible with the differential cross sections, decay asymmetry, and photon beam asymmetry measured in the production from protons at forward K+ angles.

原文	???core.languages.en_GB???
文章編號	012001
期刊	Physical Review Letters
卷	103
發行號	1
DOIs	https://doi.org/10.1103/PhysRevLett.103.012001
出版狀態	已出版 - 6 8月 2009

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10.1103/PhysRevLett.103.012001

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Muramatsu, N., Chen, J. Y., Chang, W. C., Ahn, D. S., Ahn, J. K., Akimune, H., Asano, Y., Daté, S., Ejiri, H., Fujimura, H., Fujiwara, M., Fukui, S., Hasegawa, S., Hicks, K., Horie, K., Hotta, T., Imai, K., Ishikawa, T., Iwata, T., ... Zegers, R. G. T. (2009). Near-threshold photoproduction of Λ(1520) from protons and deuterons. Physical Review Letters, 103(1), 文章 012001. https://doi.org/10.1103/PhysRevLett.103.012001

@article{fa45af024cd149afb1e49c0fac308c80,

title = "Near-threshold photoproduction of Λ(1520) from protons and deuterons",

abstract = "Photoproduction of Λ(1520) with liquid hydrogen and deuterium targets was examined at photon energies below 2.4GeV in the SPring-8 LEPS experiment. For the first time, the differential cross sections were measured at low energies and with a deuterium target. A large asymmetry of the production cross sections from protons and neutrons was observed at backward K+/0 angles. This suggests the importance of the contact term, which coexists with t-channel K exchange under gauge invariance. This interpretation was compatible with the differential cross sections, decay asymmetry, and photon beam asymmetry measured in the production from protons at forward K+ angles.",

author = "N. Muramatsu and Chen, {J. Y.} and Chang, {W. C.} and Ahn, {D. S.} and Ahn, {J. K.} and H. Akimune and Y. Asano and S. Dat{\'e} and H. Ejiri and H. Fujimura and M. Fujiwara and S. Fukui and S. Hasegawa and K. Hicks and K. Horie 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 S. Makino and T. Matsuda and T. Matsumura and N. Matsuoka and T. Mibe and M. Miyabe and M. Miyachi 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 H. Shimizu and Y. Sugaya and M. Sumihama 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",

month = aug,

day = "6",

doi = "10.1103/PhysRevLett.103.012001",

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volume = "103",

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Muramatsu, N, Chen, JY, Chang, WC, Ahn, DS, Ahn, JK, Akimune, H, Asano, Y, Daté, S, Ejiri, H, Fujimura, H, Fujiwara, M, Fukui, S, Hasegawa, S, Hicks, K, Horie, K, Hotta, T, Imai, K, Ishikawa, T, Iwata, T, Kato, Y, Kawai, H, Kino, K, Kohri, H, Kumagai, N, Makino, S, Matsuda, T, Matsumura, T, Matsuoka, N, Mibe, T, Miyabe, M, Miyachi, M, Nakano, T, Niiyama, M, Nomachi, M, Ohashi, Y, Ohkuma, H, Ooba, T, Oshuev, DS, Rangacharyulu, C, Sakaguchi, A, Shagin, PM, Shiino, Y, Shimizu, H, Sugaya, Y, Sumihama, M, Toi, Y, Toyokawa, H, Wakai, A, Wang, CW, Wang, SC, Yonehara, K, Yorita, T, Yoshimura, M, Yosoi, M & Zegers, RGT 2009, 'Near-threshold photoproduction of Λ(1520) from protons and deuterons', Physical Review Letters, 卷 103, 編號 1, 012001. https://doi.org/10.1103/PhysRevLett.103.012001

TY - JOUR

T1 - Near-threshold photoproduction of Λ(1520) from protons and deuterons

AU - Muramatsu, N.

AU - Chen, J. Y.

AU - Chang, W. C.

AU - Ahn, D. S.

AU - Ahn, J. K.

AU - Akimune, H.

AU - Asano, Y.

AU - Daté, S.

AU - Ejiri, H.

AU - Fujimura, H.

AU - Fujiwara, M.

AU - Fukui, S.

AU - Hasegawa, S.

AU - Hicks, K.

AU - Horie, 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 - Makino, S.

AU - Matsuda, T.

AU - Matsumura, T.

AU - Matsuoka, N.

AU - Mibe, T.

AU - Miyabe, M.

AU - Miyachi, M.

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, H.

AU - Sugaya, Y.

AU - Sumihama, M.

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 - 2009/8/6

Y1 - 2009/8/6

N2 - Photoproduction of Λ(1520) with liquid hydrogen and deuterium targets was examined at photon energies below 2.4GeV in the SPring-8 LEPS experiment. For the first time, the differential cross sections were measured at low energies and with a deuterium target. A large asymmetry of the production cross sections from protons and neutrons was observed at backward K+/0 angles. This suggests the importance of the contact term, which coexists with t-channel K exchange under gauge invariance. This interpretation was compatible with the differential cross sections, decay asymmetry, and photon beam asymmetry measured in the production from protons at forward K+ angles.

AB - Photoproduction of Λ(1520) with liquid hydrogen and deuterium targets was examined at photon energies below 2.4GeV in the SPring-8 LEPS experiment. For the first time, the differential cross sections were measured at low energies and with a deuterium target. A large asymmetry of the production cross sections from protons and neutrons was observed at backward K+/0 angles. This suggests the importance of the contact term, which coexists with t-channel K exchange under gauge invariance. This interpretation was compatible with the differential cross sections, decay asymmetry, and photon beam asymmetry measured in the production from protons at forward K+ angles.

UR - http://www.scopus.com/inward/record.url?scp=68649101460&partnerID=8YFLogxK

U2 - 10.1103/PhysRevLett.103.012001

DO - 10.1103/PhysRevLett.103.012001

M3 - 期刊論文

AN - SCOPUS:68649101460

SN - 0031-9007

VL - 103

JO - Physical Review Letters

JF - Physical Review Letters

IS - 1

M1 - 012001

ER -

Near-threshold photoproduction of Λ(1520) from protons and deuterons

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