Photoproduction of Λ(1405) and Σ0(1385) on the proton at Eγ=1.5-2.4 GeV

M. Niiyama, H. Fujimura, D. S. Ahn, Jung Keun Ahn, S. Ajimura, H. C. Bhang, T. H. Chang, W. C. Chang, J. Y. Chen, S. Daté, S. Fukui, H. Funahashi, K. Hicks, K. Horie, T. Hotta, K. Imai, T. Ishikawa, Y. Kato, K. Kino, H. KohriS. Makino, T. Matsumura, T. Mibe, K. Miwa, M. Miyabe, N. Muramatsu, M. Nakamura, T. Nakano, Y. Nakatsugawa, Y. Ohashi, D. S. Oshuev, J. D. Parker, N. Saito, T. Sawada, Y. Sugaya, M. Sumihama, J. L. Tang, M. Uchida, C. W. Wang, T. Yorita, M. Yosoi

Research output: Contribution to journalArticle

91 Citations (Scopus)

Abstract

Differential cross sections for γp→K+Λ(1405) and γp→K+Σ0(1385) reactions have been measured in the photon energy range from 1.5 to 2.4 GeV and the angular range of 0.8<cos(Θ)<1.0 for the K+ scattering angle in the center-of-mass system. This data is the first measurement of the Λ(1405) photoproduction cross section. The line shapes of Λ(1405) measured in Σ+π- and Σ-π+ decay modes were different with each other, indicating a strong interference of the isospin 0 and 1 terms of the Σπ scattering amplitudes. The ratios of Λ(1405) production to Σ0(1385) production were measured in two photon energy ranges: near the production threshold (1.5<Eγ<2.0 GeV) and far from it (2.0<Eγ<2.4 GeV). The observed ratio decreased in the higher photon energy region, which may suggest different production mechanisms and internal structures for these hyperon resonances.

Original languageEnglish
Article number035202
JournalPhysical Review C - Nuclear Physics
Volume78
Issue number3
DOIs
Publication statusPublished - 2008 Sep 9
Externally publishedYes

Fingerprint

photoproduction
protons
photons
cross sections
scattering amplitude
center of mass
line shape
energy
interference
thresholds
decay
scattering

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Nuclear and High Energy Physics

Cite this

Niiyama, M., Fujimura, H., Ahn, D. S., Ahn, J. K., Ajimura, S., Bhang, H. C., ... Yosoi, M. (2008). Photoproduction of Λ(1405) and Σ0(1385) on the proton at Eγ=1.5-2.4 GeV. Physical Review C - Nuclear Physics, 78(3), [035202]. https://doi.org/10.1103/PhysRevC.78.035202

Photoproduction of Λ(1405) and Σ0(1385) on the proton at Eγ=1.5-2.4 GeV. / Niiyama, M.; Fujimura, H.; Ahn, D. S.; Ahn, Jung Keun; Ajimura, S.; Bhang, H. C.; Chang, T. H.; Chang, W. C.; Chen, J. Y.; Daté, S.; Fukui, S.; Funahashi, H.; Hicks, K.; Horie, K.; Hotta, T.; Imai, K.; Ishikawa, T.; Kato, Y.; Kino, K.; Kohri, H.; Makino, S.; Matsumura, T.; Mibe, T.; Miwa, K.; Miyabe, M.; Muramatsu, N.; Nakamura, M.; Nakano, T.; Nakatsugawa, Y.; Ohashi, Y.; Oshuev, D. S.; Parker, J. D.; Saito, N.; Sawada, T.; Sugaya, Y.; Sumihama, M.; Tang, J. L.; Uchida, M.; Wang, C. W.; Yorita, T.; Yosoi, M.

In: Physical Review C - Nuclear Physics, Vol. 78, No. 3, 035202, 09.09.2008.

Research output: Contribution to journalArticle

Niiyama, M, Fujimura, H, Ahn, DS, Ahn, JK, Ajimura, S, Bhang, HC, Chang, TH, Chang, WC, Chen, JY, Daté, S, Fukui, S, Funahashi, H, Hicks, K, Horie, K, Hotta, T, Imai, K, Ishikawa, T, Kato, Y, Kino, K, Kohri, H, Makino, S, Matsumura, T, Mibe, T, Miwa, K, Miyabe, M, Muramatsu, N, Nakamura, M, Nakano, T, Nakatsugawa, Y, Ohashi, Y, Oshuev, DS, Parker, JD, Saito, N, Sawada, T, Sugaya, Y, Sumihama, M, Tang, JL, Uchida, M, Wang, CW, Yorita, T & Yosoi, M 2008, 'Photoproduction of Λ(1405) and Σ0(1385) on the proton at Eγ=1.5-2.4 GeV', Physical Review C - Nuclear Physics, vol. 78, no. 3, 035202. https://doi.org/10.1103/PhysRevC.78.035202
Niiyama, M. ; Fujimura, H. ; Ahn, D. S. ; Ahn, Jung Keun ; Ajimura, S. ; Bhang, H. C. ; Chang, T. H. ; Chang, W. C. ; Chen, J. Y. ; Daté, S. ; Fukui, S. ; Funahashi, H. ; Hicks, K. ; Horie, K. ; Hotta, T. ; Imai, K. ; Ishikawa, T. ; Kato, Y. ; Kino, K. ; Kohri, H. ; Makino, S. ; Matsumura, T. ; Mibe, T. ; Miwa, K. ; Miyabe, M. ; Muramatsu, N. ; Nakamura, M. ; Nakano, T. ; Nakatsugawa, Y. ; Ohashi, Y. ; Oshuev, D. S. ; Parker, J. D. ; Saito, N. ; Sawada, T. ; Sugaya, Y. ; Sumihama, M. ; Tang, J. L. ; Uchida, M. ; Wang, C. W. ; Yorita, T. ; Yosoi, M. / Photoproduction of Λ(1405) and Σ0(1385) on the proton at Eγ=1.5-2.4 GeV. In: Physical Review C - Nuclear Physics. 2008 ; Vol. 78, No. 3.
@article{09d940e065524c5c83b8b5d0f6cfce1c,
title = "Photoproduction of Λ(1405) and Σ0(1385) on the proton at Eγ=1.5-2.4 GeV",
abstract = "Differential cross sections for γp→K+Λ(1405) and γp→K+Σ0(1385) reactions have been measured in the photon energy range from 1.5 to 2.4 GeV and the angular range of 0.8",
author = "M. Niiyama and H. Fujimura and Ahn, {D. S.} and Ahn, {Jung Keun} and S. Ajimura and Bhang, {H. C.} and Chang, {T. H.} and Chang, {W. C.} and Chen, {J. Y.} and S. Dat{\'e} and S. Fukui and H. Funahashi and K. Hicks and K. Horie and T. Hotta and K. Imai and T. Ishikawa and Y. Kato and K. Kino and H. Kohri and S. Makino and T. Matsumura and T. Mibe and K. Miwa and M. Miyabe and N. Muramatsu and M. Nakamura and T. Nakano and Y. Nakatsugawa and Y. Ohashi and Oshuev, {D. S.} and Parker, {J. D.} and N. Saito and T. Sawada and Y. Sugaya and M. Sumihama and Tang, {J. L.} and M. Uchida and Wang, {C. W.} and T. Yorita and M. Yosoi",
year = "2008",
month = "9",
day = "9",
doi = "10.1103/PhysRevC.78.035202",
language = "English",
volume = "78",
journal = "Physical Review C - Nuclear Physics",
issn = "0556-2813",
publisher = "American Physical Society",
number = "3",

}

TY - JOUR

T1 - Photoproduction of Λ(1405) and Σ0(1385) on the proton at Eγ=1.5-2.4 GeV

AU - Niiyama, M.

AU - Fujimura, H.

AU - Ahn, D. S.

AU - Ahn, Jung Keun

AU - Ajimura, S.

AU - Bhang, H. C.

AU - Chang, T. H.

AU - Chang, W. C.

AU - Chen, J. Y.

AU - Daté, S.

AU - Fukui, S.

AU - Funahashi, H.

AU - Hicks, K.

AU - Horie, K.

AU - Hotta, T.

AU - Imai, K.

AU - Ishikawa, T.

AU - Kato, Y.

AU - Kino, K.

AU - Kohri, H.

AU - Makino, S.

AU - Matsumura, T.

AU - Mibe, T.

AU - Miwa, K.

AU - Miyabe, M.

AU - Muramatsu, N.

AU - Nakamura, M.

AU - Nakano, T.

AU - Nakatsugawa, Y.

AU - Ohashi, Y.

AU - Oshuev, D. S.

AU - Parker, J. D.

AU - Saito, N.

AU - Sawada, T.

AU - Sugaya, Y.

AU - Sumihama, M.

AU - Tang, J. L.

AU - Uchida, M.

AU - Wang, C. W.

AU - Yorita, T.

AU - Yosoi, M.

PY - 2008/9/9

Y1 - 2008/9/9

N2 - Differential cross sections for γp→K+Λ(1405) and γp→K+Σ0(1385) reactions have been measured in the photon energy range from 1.5 to 2.4 GeV and the angular range of 0.8

AB - Differential cross sections for γp→K+Λ(1405) and γp→K+Σ0(1385) reactions have been measured in the photon energy range from 1.5 to 2.4 GeV and the angular range of 0.8

UR - http://www.scopus.com/inward/record.url?scp=51849122455&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=51849122455&partnerID=8YFLogxK

U2 - 10.1103/PhysRevC.78.035202

DO - 10.1103/PhysRevC.78.035202

M3 - Article

AN - SCOPUS:51849122455

VL - 78

JO - Physical Review C - Nuclear Physics

JF - Physical Review C - Nuclear Physics

SN - 0556-2813

IS - 3

M1 - 035202

ER -