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

M. Kanetaa; B. Beckforda; P. Bydžovskýb; T. Fujibayashia; T. Fujiia; Y. Fujiia; K. Futatsukawaa; T. Gogamia; Y. C. Han; O. Hashimotoa; K. Hirosed; K. Hosomia; R. Hondaa; A. Iguchia; T. Ishikawad; H. Kandaa; Y. Kanekoa; Y. Kasaia; T. Kawasakia; C. Kimuraa; S. Kiyokawaa; T. Koikea; K. Maedaa; N. Maruyamaa; M. Matsubaraa; K. Miwaa; Y. Miyagia; S. Nagaoa; S. N. Nakamuraa; A. Okuyamaa; M. Sotonab; T. Tamaed; H. Tamuraa; K. Tsukadaa; N. Teradaa; T. S. Wangc; F. Yamamotoa; T. O. Yamamotoa; H. Yamazakid

doi:10.1016/j.nuclphysa.2013.05.007

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

M. Kanetaa, B. Beckforda, P. Bydžovskýb, T. Fujibayashia, T. Fujiia, Y. Fujiia, K. Futatsukawaa, T. Gogamia, Y. C. Han, O. Hashimotoa, K. Hirosed, K. Hosomia, R. Hondaa, A. Iguchia, T. Ishikawad, H. Kandaa, Y. Kanekoa, Y. Kasaia, T. Kawasakia, C. KimuraaS. Kiyokawaa, T. Koikea, K. Maedaa, N. Maruyamaa, M. Matsubaraa, K. Miwaa, Y. Miyagia, S. Nagaoa, S. N. Nakamuraa, A. Okuyamaa, M. Sotonab, T. Tamaed, H. Tamuraa, K. Tsukadaa, N. Teradaa, T. S. Wangc, F. Yamamotoa, T. O. Yamamotoa, H. Yamazakid

SCI - Physics

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Abstract

The strangeness photoproduction processes near the threshold have been intensively studied by measuring ^{K +} in reactions such as γ + p → ^{K +} + Λ(^σ0). There has been no reliable data on the neutron and as a consequence theoretical investigation suffered seriously from the lack of the data. We have an effort to measure the γ + d → ^K0(Λ) + X reaction in the ^{π +π -} (p^{π -}) decay channel of KS0 (Λ) using a liquid D₂ target and internally-tagged photon beams (_Eγ = 0.80-1.08GeV) at Research Center for Electron Photon Science (ELPH), Tohoku University. We have renewed the spectrometer (NKS2) and took data with a liquid D₂ target in 2005-2007. More recently, we took data in 2010 after a detector upgrade in the vertex region to substantially increase the acceptance. The results of Λ single measurements on a deuterium target were obtained for differential cross-section as a function of momentum, as a function of angle, and integrated cross-section as a function of beam energy. The results are compared with recent theoretical studies: Isobar models (Kaon-MAID and Saclay-Lyon A) and a Regge-plus-Resonance model.

Original language	English
Pages (from-to)	69-73
Number of pages	5
Journal	Nuclear Physics A
Volume	914
DOIs	https://doi.org/10.1016/j.nuclphysa.2013.05.007
Publication status	Published - 2013 Sept

Keywords

Lambda detection
Photoproduction
Strangeness
Tagged photon beam

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10.1016/j.nuclphysa.2013.05.007

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Kanetaa, M., Beckforda, B., Bydžovskýb, P., Fujibayashia, T., Fujiia, T., Fujiia, Y., Futatsukawaa, K., Gogamia, T., Han, Y. C., Hashimotoa, O., Hirosed, K., Hosomia, K., Hondaa, R., Iguchia, A., Ishikawad, T., Kandaa, H., Kanekoa, Y., Kasaia, Y., Kawasakia, T., ... Yamazakid, H. (2013). The investigation of strangeness photoproduction in the threshold region at ELPH-Tohoku. Nuclear Physics A, 914, 69-73. https://doi.org/10.1016/j.nuclphysa.2013.05.007

@article{452da0973b6f41098139e6b328206d74,

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

abstract = "The strangeness photoproduction processes near the threshold have been intensively studied by measuring K + in reactions such as γ + p → K + + Λ(σ0). There has been no reliable data on the neutron and as a consequence theoretical investigation suffered seriously from the lack of the data. We have an effort to measure the γ + d → K0(Λ) + X reaction in the π +π - (pπ -) decay channel of KS0 (Λ) using a liquid D2 target and internally-tagged photon beams (Eγ = 0.80-1.08GeV) at Research Center for Electron Photon Science (ELPH), Tohoku University. We have renewed the spectrometer (NKS2) and took data with a liquid D2 target in 2005-2007. More recently, we took data in 2010 after a detector upgrade in the vertex region to substantially increase the acceptance. The results of Λ single measurements on a deuterium target were obtained for differential cross-section as a function of momentum, as a function of angle, and integrated cross-section as a function of beam energy. The results are compared with recent theoretical studies: Isobar models (Kaon-MAID and Saclay-Lyon A) and a Regge-plus-Resonance model.",

keywords = "Lambda detection, Photoproduction, Strangeness, Tagged photon beam",

author = "M. Kanetaa and B. Beckforda and P. Byd{\v z}ovsk{\'y}b and T. Fujibayashia and T. Fujiia and Y. Fujiia and K. Futatsukawaa and T. Gogamia and Han, {Y. C.} and O. Hashimotoa and K. Hirosed and K. Hosomia and R. Hondaa and A. Iguchia and T. Ishikawad and H. Kandaa and Y. Kanekoa and Y. Kasaia and T. Kawasakia and C. Kimuraa and S. Kiyokawaa and T. Koikea and K. Maedaa and N. Maruyamaa and M. Matsubaraa and K. Miwaa and Y. Miyagia and S. Nagaoa and Nakamuraa, {S. N.} and A. Okuyamaa and M. Sotonab and T. Tamaed and H. Tamuraa and K. Tsukadaa and N. Teradaa and Wangc, {T. S.} and F. Yamamotoa and Yamamotoa, {T. O.} and H. Yamazakid",

note = "Funding Information: The NKS2 Collaboration extends its thanks to the accelerator group of ELPH, Tohoku University for providing the electron beam. This work is partly supported by JSPS Grant-in-Aid for Creative research program ( 16GS0201 ), JSPS Core-to-Core program ( 21002 ), and JSPS Grant-in-Aid for Scientific Research (C) ( 23540334 ).",

year = "2013",

month = sep,

doi = "10.1016/j.nuclphysa.2013.05.007",

language = "English",

volume = "914",

pages = "69--73",

journal = "Nuclear Physics A",

issn = "0375-9474",

publisher = "Elsevier",

}

Kanetaa, M, Beckforda, B, Bydžovskýb, P, Fujibayashia, T, Fujiia, T, Fujiia, Y, Futatsukawaa, K, Gogamia, T, Han, YC, Hashimotoa, O, Hirosed, K, Hosomia, K, Hondaa, R, Iguchia, A, Ishikawad, T, Kandaa, H, Kanekoa, Y, Kasaia, Y, Kawasakia, T, Kimuraa, C, Kiyokawaa, S, Koikea, T, Maedaa, K, Maruyamaa, N, Matsubaraa, M, Miwaa, K, Miyagia, Y, Nagaoa, S, Nakamuraa, SN, Okuyamaa, A, Sotonab, M, Tamaed, T, Tamuraa, H, Tsukadaa, K, Teradaa, N, Wangc, TS, Yamamotoa, F, Yamamotoa, TO & Yamazakid, H 2013, 'The investigation of strangeness photoproduction in the threshold region at ELPH-Tohoku', Nuclear Physics A, vol. 914, pp. 69-73. https://doi.org/10.1016/j.nuclphysa.2013.05.007

TY - JOUR

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

AU - Kanetaa, M.

AU - Beckforda, B.

AU - Bydžovskýb, P.

AU - Fujibayashia, T.

AU - Fujiia, T.

AU - Fujiia, Y.

AU - Futatsukawaa, K.

AU - Gogamia, T.

AU - Han, Y. C.

AU - Hashimotoa, O.

AU - Hirosed, K.

AU - Hosomia, K.

AU - Hondaa, R.

AU - Iguchia, A.

AU - Ishikawad, T.

AU - Kandaa, H.

AU - Kanekoa, Y.

AU - Kasaia, Y.

AU - Kawasakia, T.

AU - Kimuraa, C.

AU - Kiyokawaa, S.

AU - Koikea, T.

AU - Maedaa, K.

AU - Maruyamaa, N.

AU - Matsubaraa, M.

AU - Miwaa, K.

AU - Miyagia, Y.

AU - Nagaoa, S.

AU - Nakamuraa, S. N.

AU - Okuyamaa, A.

AU - Sotonab, M.

AU - Tamaed, T.

AU - Tamuraa, H.

AU - Tsukadaa, K.

AU - Teradaa, N.

AU - Wangc, T. S.

AU - Yamamotoa, F.

AU - Yamamotoa, T. O.

AU - Yamazakid, H.

N1 - Funding Information: The NKS2 Collaboration extends its thanks to the accelerator group of ELPH, Tohoku University for providing the electron beam. This work is partly supported by JSPS Grant-in-Aid for Creative research program ( 16GS0201 ), JSPS Core-to-Core program ( 21002 ), and JSPS Grant-in-Aid for Scientific Research (C) ( 23540334 ).

PY - 2013/9

Y1 - 2013/9

N2 - The strangeness photoproduction processes near the threshold have been intensively studied by measuring K + in reactions such as γ + p → K + + Λ(σ0). There has been no reliable data on the neutron and as a consequence theoretical investigation suffered seriously from the lack of the data. We have an effort to measure the γ + d → K0(Λ) + X reaction in the π +π - (pπ -) decay channel of KS0 (Λ) using a liquid D2 target and internally-tagged photon beams (Eγ = 0.80-1.08GeV) at Research Center for Electron Photon Science (ELPH), Tohoku University. We have renewed the spectrometer (NKS2) and took data with a liquid D2 target in 2005-2007. More recently, we took data in 2010 after a detector upgrade in the vertex region to substantially increase the acceptance. The results of Λ single measurements on a deuterium target were obtained for differential cross-section as a function of momentum, as a function of angle, and integrated cross-section as a function of beam energy. The results are compared with recent theoretical studies: Isobar models (Kaon-MAID and Saclay-Lyon A) and a Regge-plus-Resonance model.

AB - The strangeness photoproduction processes near the threshold have been intensively studied by measuring K + in reactions such as γ + p → K + + Λ(σ0). There has been no reliable data on the neutron and as a consequence theoretical investigation suffered seriously from the lack of the data. We have an effort to measure the γ + d → K0(Λ) + X reaction in the π +π - (pπ -) decay channel of KS0 (Λ) using a liquid D2 target and internally-tagged photon beams (Eγ = 0.80-1.08GeV) at Research Center for Electron Photon Science (ELPH), Tohoku University. We have renewed the spectrometer (NKS2) and took data with a liquid D2 target in 2005-2007. More recently, we took data in 2010 after a detector upgrade in the vertex region to substantially increase the acceptance. The results of Λ single measurements on a deuterium target were obtained for differential cross-section as a function of momentum, as a function of angle, and integrated cross-section as a function of beam energy. The results are compared with recent theoretical studies: Isobar models (Kaon-MAID and Saclay-Lyon A) and a Regge-plus-Resonance model.

KW - Lambda detection

KW - Photoproduction

KW - Strangeness

KW - Tagged photon beam

UR - http://www.scopus.com/inward/record.url?scp=84883554957&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84883554957&partnerID=8YFLogxK

U2 - 10.1016/j.nuclphysa.2013.05.007

DO - 10.1016/j.nuclphysa.2013.05.007

M3 - Article

AN - SCOPUS:84883554957

SN - 0375-9474

VL - 914

SP - 69

EP - 73

JO - Nuclear Physics A

JF - Nuclear Physics A

ER -

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

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Keywords

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