The investigation of strangeness photoproduction in the threshold region at LNS-Tohoku

M. Kaneta; B. Beckford; M. Ejima; T. Fujii; Yu Fujii; T. Fujibayashi; Toshiyuki Gogami; K. Futatsukawa; O. Hashimoto; K. Hosomi; K. Hirose; A. Iguchi; S. Kameoka; Hiroki Kanda; H. Kato; D. Kawama; T. Kawasaki; C. Kimura; S. Kiyokawa; Takeshi Koike; T. Kon; Y. Ma; Kazushige Maeda; N. Maruyama; A. Matsumura; Y. Miyagi; Y. Miura; K. Miwa; Satoshi Nakamura; H. Nomura; A. Okuyama; A. Ohtani; M. Sato; A. Shichijo; K. Shirotori; T. Takahash; H. Tamura; N. Taniya; H. Tsubota; Kyo Tsukada; N. Terada; M. Ukai; D. Uchida; T. Watanabe; T. O. Yamamoto; H. Yamauchi; T. Ishikawa; T. Kinoshita; H. Miyahara; T. Nakabayashi; Hajime Shimizu; K. Suzuki; T. Tamae; T. Terasawa; Hirohito Yamazaki; Y. C. Han; T. S. Wang; A. Sasaki; O. Konno; P. Bydžovský; M. Sotona

doi:10.1142/9789814313933_0007

The investigation of strangeness photoproduction in the threshold region at LNS-Tohoku

M. Kaneta, B. Beckford, M. Ejima, T. Fujii, Yu Fujii, T. Fujibayashi, Toshiyuki Gogami, K. Futatsukawa, O. Hashimoto, K. Hosomi, K. Hirose, A. Iguchi, S. Kameoka, Hiroki Kanda, H. Kato, D. Kawama, T. Kawasaki, C. Kimura, S. Kiyokawa, Takeshi KoikeT. Kon, Y. Ma, Kazushige Maeda, N. Maruyama, A. Matsumura, Y. Miyagi, Y. Miura, K. Miwa, Satoshi Nakamura, H. Nomura, A. Okuyama, A. Ohtani, M. Sato, A. Shichijo, K. Shirotori, T. Takahash, H. Tamura, N. Taniya, H. Tsubota, Kyo Tsukada, N. Terada, M. Ukai, D. Uchida, T. Watanabe, T. O. Yamamoto, H. Yamauchi, T. Ishikawa, T. Kinoshita, H. Miyahara, T. Nakabayashi, Hajime Shimizu, K. Suzuki, T. Tamae, T. Terasawa, Hirohito Yamazaki, Y. C. Han, T. S. Wang, A. Sasaki, O. Konno, P. Bydžovský, M. Sotona

研究成果: Chapter

抄録

The strangeness photoproduction process has been intensively studied based on the high-quality data of the charged kaon channel, γ + p + K⁺ + A(Σ⁰). On the other hand, there was no reliable data for the neutral kaon channel γ+n + K⁰+A(Σ⁰). The theoretical investigations suffer seriously from the lack of the data. A Substantial effort has been made to measure the γ+ n → K⁰ + A process in the K: → Π⁺ Π^- decay channel, using a liquid deuterium target and a tagged photon beam (E^γ = 0.8-1.1 GeV) in the threshold region at Laboratory of Nuclear Science (LNS), Tohoku University. We have taken exploratory data quite successfully with use of Neutral Kaon Spectrometer (NKS) at LNS-Tohoku in 2003 and 2004. The data is compared theoretical models and it indicates a hint that the KO differential cross section has a backward peak in the energy region. The second generation of the experiment, named NKS2, is designed to extend the NKS experiment by considerably upgrading the original neutral kaon spectrometer, fully replacing the spectrometer magnet, tracking detectors and all the trigger counters. The new spectrometer NKS2 has significantly larger acceptance for neutral kaons compared with NKS, particularly covering forward angles and much better invariant mass resolution. The estimated acceptance of NKS2 is three (ten) times larger for K:(A) than that of NKS. The spectrometer is newly constructed and installed at LNS, Tohoku University in 2005. The deuterium target data was taken with the tagged photon beam in 2006-2007. We will report recent results of NKS2 in this paper. Additionally, a status of the upgrade project that gives us larger acceptance and capability of K +A coincidence measurement will be repsented.

本文言語	English
ホスト出版物のタイトル	Hadron and Nuclear Physics 09
ホスト出版物のサブタイトル	Osaka University, Japan, 16-19 November 2009
出版社	World Scientific Publishing Co.
ページ	51-60
ページ数	10
ISBN（電子版）	9789814313933
ISBN（印刷版）	9814313920, 9789814313926
DOI	https://doi.org/10.1142/9789814313933_0007
出版ステータス	Published - 2010 1月 1

ASJC Scopus subject areas

物理学および天文学（全般）

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10.1142/9789814313933_0007

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Kaneta, M., Beckford, B., Ejima, M., Fujii, T., Fujii, Y., Fujibayashi, T., Gogami, T., Futatsukawa, K., Hashimoto, O., Hosomi, K., Hirose, K., Iguchi, A., Kameoka, S., Kanda, H., Kato, H., Kawama, D., Kawasaki, T., Kimura, C., Kiyokawa, S., ... Sotona, M. (2010). The investigation of strangeness photoproduction in the threshold region at LNS-Tohoku. In Hadron and Nuclear Physics 09: Osaka University, Japan, 16-19 November 2009 (pp. 51-60). World Scientific Publishing Co.. https://doi.org/10.1142/9789814313933_0007

Kaneta, M, Beckford, B, Ejima, M, Fujii, T, Fujii, Y, Fujibayashi, T, Gogami, T, Futatsukawa, K, Hashimoto, O, Hosomi, K, Hirose, K, Iguchi, A, Kameoka, S, Kanda, H, Kato, H, Kawama, D, Kawasaki, T, Kimura, C, Kiyokawa, S, Koike, T, Kon, T, Ma, Y, Maeda, K, Maruyama, N, Matsumura, A, Miyagi, Y, Miura, Y, Miwa, K, Nakamura, S, Nomura, H, Okuyama, A, Ohtani, A, Sato, M, Shichijo, A, Shirotori, K, Takahash, T, Tamura, H, Taniya, N, Tsubota, H, Tsukada, K, Terada, N, Ukai, M, Uchida, D, Watanabe, T, Yamamoto, TO, Yamauchi, H, Ishikawa, T , Kinoshita, T, Miyahara, H, Nakabayashi, T, Shimizu, H, Suzuki, K, Tamae, T, Terasawa, T, Yamazaki, H, Han, YC, Wang, TS, Sasaki, A, Konno, O, Bydžovský, P & Sotona, M 2010, The investigation of strangeness photoproduction in the threshold region at LNS-Tohoku. in Hadron and Nuclear Physics 09: Osaka University, Japan, 16-19 November 2009. World Scientific Publishing Co., pp. 51-60. https://doi.org/10.1142/9789814313933_0007

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title = "The investigation of strangeness photoproduction in the threshold region at LNS-Tohoku",

abstract = "The strangeness photoproduction process has been intensively studied based on the high-quality data of the charged kaon channel, γ + p + K+ + A(Σ0). On the other hand, there was no reliable data for the neutral kaon channel γ+n + K0+A(Σ0). The theoretical investigations suffer seriously from the lack of the data. A Substantial effort has been made to measure the γ+ n → K0 + A process in the K: → Π+ Π- decay channel, using a liquid deuterium target and a tagged photon beam (Eγ = 0.8-1.1 GeV) in the threshold region at Laboratory of Nuclear Science (LNS), Tohoku University. We have taken exploratory data quite successfully with use of Neutral Kaon Spectrometer (NKS) at LNS-Tohoku in 2003 and 2004. The data is compared theoretical models and it indicates a hint that the KO differential cross section has a backward peak in the energy region. The second generation of the experiment, named NKS2, is designed to extend the NKS experiment by considerably upgrading the original neutral kaon spectrometer, fully replacing the spectrometer magnet, tracking detectors and all the trigger counters. The new spectrometer NKS2 has significantly larger acceptance for neutral kaons compared with NKS, particularly covering forward angles and much better invariant mass resolution. The estimated acceptance of NKS2 is three (ten) times larger for K:(A) than that of NKS. The spectrometer is newly constructed and installed at LNS, Tohoku University in 2005. The deuterium target data was taken with the tagged photon beam in 2006-2007. We will report recent results of NKS2 in this paper. Additionally, a status of the upgrade project that gives us larger acceptance and capability of K +A coincidence measurement will be repsented.",

keywords = "Photoproduction, Strangenes",

author = "M. Kaneta and B. Beckford and M. Ejima and T. Fujii and Yu Fujii and T. Fujibayashi and Toshiyuki Gogami and K. Futatsukawa and O. Hashimoto and K. Hosomi and K. Hirose and A. Iguchi and S. Kameoka and Hiroki Kanda and H. Kato and D. Kawama and T. Kawasaki and C. Kimura and S. Kiyokawa and Takeshi Koike and T. Kon and Y. Ma and Kazushige Maeda and N. Maruyama and A. Matsumura and Y. Miyagi and Y. Miura and K. Miwa and Satoshi Nakamura and H. Nomura and A. Okuyama and A. Ohtani and M. Sato and A. Shichijo and K. Shirotori and T. Takahash and H. Tamura and N. Taniya and H. Tsubota and Kyo Tsukada and N. Terada and M. Ukai and D. Uchida and T. Watanabe and Yamamoto, {T. O.} and H. Yamauchi and T. Ishikawa and T. Kinoshita and H. Miyahara and T. Nakabayashi and Hajime Shimizu and K. Suzuki and T. Tamae and T. Terasawa and Hirohito Yamazaki and Han, {Y. C.} and Wang, {T. S.} and A. Sasaki and O. Konno and P. Byd{\v z}ovsk{\'y} and M. Sotona",

note = "Funding Information: Funding was provided by USDA Grant Number 89-37240-4583 and National Institutes of Health Grant Number HD21896. This arti- cle is Journal Series Number R-04373 of the Florida Agricultural Experiment Station. Publisher Copyright: {\textcopyright} 2010 by World Scientific Publishing Co. Pte. Ltd. All rights reserved.",

year = "2010",

month = jan,

day = "1",

doi = "10.1142/9789814313933_0007",

language = "English",

isbn = "9814313920",

pages = "51--60",

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TY - CHAP

T1 - The investigation of strangeness photoproduction in the threshold region at LNS-Tohoku

AU - Kaneta, M.

AU - Beckford, B.

AU - Ejima, M.

AU - Fujii, T.

AU - Fujii, Yu

AU - Fujibayashi, T.

AU - Gogami, Toshiyuki

AU - Futatsukawa, K.

AU - Hashimoto, O.

AU - Hosomi, K.

AU - Hirose, K.

AU - Iguchi, A.

AU - Kameoka, S.

AU - Kanda, Hiroki

AU - Kato, H.

AU - Kawama, D.

AU - Kawasaki, T.

AU - Kimura, C.

AU - Kiyokawa, S.

AU - Koike, Takeshi

AU - Kon, T.

AU - Ma, Y.

AU - Maeda, Kazushige

AU - Maruyama, N.

AU - Matsumura, A.

AU - Miyagi, Y.

AU - Miura, Y.

AU - Miwa, K.

AU - Nakamura, Satoshi

AU - Nomura, H.

AU - Okuyama, A.

AU - Ohtani, A.

AU - Sato, M.

AU - Shichijo, A.

AU - Shirotori, K.

AU - Takahash, T.

AU - Tamura, H.

AU - Taniya, N.

AU - Tsubota, H.

AU - Tsukada, Kyo

AU - Terada, N.

AU - Ukai, M.

AU - Uchida, D.

AU - Watanabe, T.

AU - Yamamoto, T. O.

AU - Yamauchi, H.

AU - Ishikawa, T.

AU - Kinoshita, T.

AU - Miyahara, H.

AU - Nakabayashi, T.

AU - Shimizu, Hajime

AU - Suzuki, K.

AU - Tamae, T.

AU - Terasawa, T.

AU - Yamazaki, Hirohito

AU - Han, Y. C.

AU - Wang, T. S.

AU - Sasaki, A.

AU - Konno, O.

AU - Bydžovský, P.

AU - Sotona, M.

N1 - Funding Information: Funding was provided by USDA Grant Number 89-37240-4583 and National Institutes of Health Grant Number HD21896. This arti- cle is Journal Series Number R-04373 of the Florida Agricultural Experiment Station. Publisher Copyright: © 2010 by World Scientific Publishing Co. Pte. Ltd. All rights reserved.

PY - 2010/1/1

Y1 - 2010/1/1

N2 - The strangeness photoproduction process has been intensively studied based on the high-quality data of the charged kaon channel, γ + p + K+ + A(Σ0). On the other hand, there was no reliable data for the neutral kaon channel γ+n + K0+A(Σ0). The theoretical investigations suffer seriously from the lack of the data. A Substantial effort has been made to measure the γ+ n → K0 + A process in the K: → Π+ Π- decay channel, using a liquid deuterium target and a tagged photon beam (Eγ = 0.8-1.1 GeV) in the threshold region at Laboratory of Nuclear Science (LNS), Tohoku University. We have taken exploratory data quite successfully with use of Neutral Kaon Spectrometer (NKS) at LNS-Tohoku in 2003 and 2004. The data is compared theoretical models and it indicates a hint that the KO differential cross section has a backward peak in the energy region. The second generation of the experiment, named NKS2, is designed to extend the NKS experiment by considerably upgrading the original neutral kaon spectrometer, fully replacing the spectrometer magnet, tracking detectors and all the trigger counters. The new spectrometer NKS2 has significantly larger acceptance for neutral kaons compared with NKS, particularly covering forward angles and much better invariant mass resolution. The estimated acceptance of NKS2 is three (ten) times larger for K:(A) than that of NKS. The spectrometer is newly constructed and installed at LNS, Tohoku University in 2005. The deuterium target data was taken with the tagged photon beam in 2006-2007. We will report recent results of NKS2 in this paper. Additionally, a status of the upgrade project that gives us larger acceptance and capability of K +A coincidence measurement will be repsented.

AB - The strangeness photoproduction process has been intensively studied based on the high-quality data of the charged kaon channel, γ + p + K+ + A(Σ0). On the other hand, there was no reliable data for the neutral kaon channel γ+n + K0+A(Σ0). The theoretical investigations suffer seriously from the lack of the data. A Substantial effort has been made to measure the γ+ n → K0 + A process in the K: → Π+ Π- decay channel, using a liquid deuterium target and a tagged photon beam (Eγ = 0.8-1.1 GeV) in the threshold region at Laboratory of Nuclear Science (LNS), Tohoku University. We have taken exploratory data quite successfully with use of Neutral Kaon Spectrometer (NKS) at LNS-Tohoku in 2003 and 2004. The data is compared theoretical models and it indicates a hint that the KO differential cross section has a backward peak in the energy region. The second generation of the experiment, named NKS2, is designed to extend the NKS experiment by considerably upgrading the original neutral kaon spectrometer, fully replacing the spectrometer magnet, tracking detectors and all the trigger counters. The new spectrometer NKS2 has significantly larger acceptance for neutral kaons compared with NKS, particularly covering forward angles and much better invariant mass resolution. The estimated acceptance of NKS2 is three (ten) times larger for K:(A) than that of NKS. The spectrometer is newly constructed and installed at LNS, Tohoku University in 2005. The deuterium target data was taken with the tagged photon beam in 2006-2007. We will report recent results of NKS2 in this paper. Additionally, a status of the upgrade project that gives us larger acceptance and capability of K +A coincidence measurement will be repsented.

KW - Photoproduction

KW - Strangenes

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BT - Hadron and Nuclear Physics 09

PB - World Scientific Publishing Co.

ER -

The investigation of strangeness photoproduction in the threshold region at LNS-Tohoku

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