φ photoproduction on the proton at Eγ=1.5-2.9 GeV

LEPS Collaboration

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

Differential cross sections at t=tmin and decay asymmetries for the γp→φp reaction have been measured using linearly polarized photons in the range 1.5 to 2.9 GeV. These cross sections were used to determine the Pomeron strength factor. The cross sections and decay asymmetries are consistently described by the t-channel Pomeron and pseudoscalar exchange model in the Eγ region above 2.37 GeV. In the lower energy region, an excess over the model prediction is observed in the energy dependence of the differential cross sections at t=tmin. This observation suggests that additional processes or interference effects between Pomeron exchange and other processes appear near the threshold region.

Original languageEnglish
Article number062201
JournalPhysical Review C
Volume96
Issue number6
DOIs
Publication statusPublished - 2017 Dec 29

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photoproduction
protons
cross sections
asymmetry
E region
decay
interference
thresholds
energy
photons
predictions

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

Cite this

φ photoproduction on the proton at Eγ=1.5-2.9 GeV. / LEPS Collaboration.

In: Physical Review C, Vol. 96, No. 6, 062201, 29.12.2017.

Research output: Contribution to journalArticle

LEPS Collaboration. / φ photoproduction on the proton at Eγ=1.5-2.9 GeV. In: Physical Review C. 2017 ; Vol. 96, No. 6.
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abstract = "Differential cross sections at t=tmin and decay asymmetries for the γp→φp reaction have been measured using linearly polarized photons in the range 1.5 to 2.9 GeV. These cross sections were used to determine the Pomeron strength factor. The cross sections and decay asymmetries are consistently described by the t-channel Pomeron and pseudoscalar exchange model in the Eγ region above 2.37 GeV. In the lower energy region, an excess over the model prediction is observed in the energy dependence of the differential cross sections at t=tmin. This observation suggests that additional processes or interference effects between Pomeron exchange and other processes appear near the threshold region.",
author = "{LEPS Collaboration} and K. Mizutani and M. Niiyama and T. Nakano and M. Yosoi and Y. Nozawa and Ahn, {D. S.} and Ahn, {Jung Keun} and Chang, {W. C.} and Chen, {J. Y.} and S. Dat{\'e} and W. Gohn and H. Hamano and T. Hashimoto and K. Hicks and T. Hiraiwa and T. Hotta and Hwang, {S. H.} and T. Ishikawa and K. Joo and Jung, {W. S.} and Y. Kato and H. Katsuragawa and Kim, {M. H.} and Kim, {S. H.} and H. Kohri and Y. Kon and Lee, {H. S.} and Y. Maeda and Y. Matsumura and T. Mibe and M. Miyabe and Y. Morino and N. Muramatsu and Y. Nakatsugawa and H. Noumi and Y. Ohashi and T. Ohta and M. Oka and Park, {J. B.} and Parker, {J. D.} and C. Rangacharyulu and Ryu, {S. Y.} and Y. Sada and T. Sawada and T. Shibukawa and Shiu, {S. H.} and Y. Sugaya and M. Sumihama and S. Tanaka and Tokiyasu, {A. O.}",
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AU - Mizutani, K.

AU - Niiyama, M.

AU - Nakano, T.

AU - Yosoi, M.

AU - Nozawa, Y.

AU - Ahn, D. S.

AU - Ahn, Jung Keun

AU - Chang, W. C.

AU - Chen, J. Y.

AU - Daté, S.

AU - Gohn, W.

AU - Hamano, H.

AU - Hashimoto, T.

AU - Hicks, K.

AU - Hiraiwa, T.

AU - Hotta, T.

AU - Hwang, S. H.

AU - Ishikawa, T.

AU - Joo, K.

AU - Jung, W. S.

AU - Kato, Y.

AU - Katsuragawa, H.

AU - Kim, M. H.

AU - Kim, S. H.

AU - Kohri, H.

AU - Kon, Y.

AU - Lee, H. S.

AU - Maeda, Y.

AU - Matsumura, Y.

AU - Mibe, T.

AU - Miyabe, M.

AU - Morino, Y.

AU - Muramatsu, N.

AU - Nakatsugawa, Y.

AU - Noumi, H.

AU - Ohashi, Y.

AU - Ohta, T.

AU - Oka, M.

AU - Park, J. B.

AU - Parker, J. D.

AU - Rangacharyulu, C.

AU - Ryu, S. Y.

AU - Sada, Y.

AU - Sawada, T.

AU - Shibukawa, T.

AU - Shiu, S. H.

AU - Sugaya, Y.

AU - Sumihama, M.

AU - Tanaka, S.

AU - Tokiyasu, A. O.

PY - 2017/12/29

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N2 - Differential cross sections at t=tmin and decay asymmetries for the γp→φp reaction have been measured using linearly polarized photons in the range 1.5 to 2.9 GeV. These cross sections were used to determine the Pomeron strength factor. The cross sections and decay asymmetries are consistently described by the t-channel Pomeron and pseudoscalar exchange model in the Eγ region above 2.37 GeV. In the lower energy region, an excess over the model prediction is observed in the energy dependence of the differential cross sections at t=tmin. This observation suggests that additional processes or interference effects between Pomeron exchange and other processes appear near the threshold region.

AB - Differential cross sections at t=tmin and decay asymmetries for the γp→φp reaction have been measured using linearly polarized photons in the range 1.5 to 2.9 GeV. These cross sections were used to determine the Pomeron strength factor. The cross sections and decay asymmetries are consistently described by the t-channel Pomeron and pseudoscalar exchange model in the Eγ region above 2.37 GeV. In the lower energy region, an excess over the model prediction is observed in the energy dependence of the differential cross sections at t=tmin. This observation suggests that additional processes or interference effects between Pomeron exchange and other processes appear near the threshold region.

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