Forward coherent ϕ-meson photoproduction from deuterons near threshold

W. C. Chang; K. Horie; S. Shimizu; M. Miyabe; D. S. Ahn; J. K. Ahn; H. Akimune; Y. Asano; S. Daté; H. Ejiri; S. Fukui; H. Fujimura; M. Fujiwara; S. Hasegawa; K. Hicks; T. Hotta; K. Imai; T. Ishikawa; T. Iwata; Y. Kato; H. Kawai; Z. Y. Kim; K. Kino; H. Kohri; N. Kumagai; P. J. Lin; S. Makino; T. Matsuda; T. Matsumura; N. Matsuoka; T. Mibe; Y. Miyachi; M. Morita; N. Muramatsu; T. Nakano; M. Niiyama; M. Nomachi; Y. Ohashi; H. Ohkuma; T. Ooba; D. S. Oshuev; C. Rangacharyulu; A. Sakaguchi; T. Sasaki; P. M. Shagin; Y. Shiino; A. Shimizu; 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:10.1016/j.physletb.2007.11.009

Forward coherent ϕ-meson photoproduction from deuterons near threshold

W. C. Chang
, K. Horie
, S. Shimizu
, M. Miyabe
, D. S. Ahn
, J. K. Ahn
, H. Akimune
, Y. Asano
, S. Daté
, H. Ejiri
, S. Fukui
, H. Fujimura
, M. Fujiwara
, S. Hasegawa
, K. Hicks
, T. Hotta
, K. Imai
, T. Ishikawa
, T. Iwata
, Y. Kato

H. Kawai, Z. Y. Kim, K. Kino, H. Kohri, N. Kumagai, P. J. Lin, S. Makino, T. Matsuda, T. Matsumura, N. Matsuoka, T. Mibe, Y. Miyachi, M. Morita, N. Muramatsu, T. Nakano, M. Niiyama, M. Nomachi, Y. Ohashi, H. Ohkuma, T. Ooba, D. S. Oshuev, C. Rangacharyulu, A. Sakaguchi, T. Sasaki, P. M. Shagin, Y. Shiino, A. Shimizu, 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

Research output: Contribution to journal › Article › peer-review

37 Scopus citations

Abstract

Differential cross sections and decay asymmetries for coherent φ{symbol}-meson photoproduction from deuterons were measured for the first time at forward angles using linearly polarized photons at E_γ = 1.5 - 2.4 GeV. This reaction offers a unique way to directly access natural-parity pomeron dynamics and gluon exchange at low energies. The cross sections at zero degrees increase with increasing photon energy. The decay asymmetries demonstrate a complete dominance of natural-parity exchange processes, showing that isovector unnatural-parity π-meson exchange is small. Nevertheless the deduced cross sections of φ{symbol}-mesons from nucleons contributed by isoscalar t-channel exchange processes are not well described by the conventional pomeron model.

Original language	English
Pages (from-to)	209-215
Number of pages	7
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	658
Issue number	5
DOIs	https://doi.org/10.1016/j.physletb.2007.11.009
State	Published - 10 Jan 2008

Keywords

Coherent interaction
Deuterons
Photoproduction
φ{symbol}-mesons

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10.1016/j.physletb.2007.11.009

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Chang, W. C., Horie, K., Shimizu, S., Miyabe, M., Ahn, D. S., Ahn, J. K., Akimune, H., Asano, Y., Daté, S., Ejiri, H., Fukui, S., Fujimura, H., Fujiwara, M., Hasegawa, S., Hicks, K., Hotta, T., Imai, K., Ishikawa, T., Iwata, T., ... Zegers, R. G. T. (2008). Forward coherent ϕ-meson photoproduction from deuterons near threshold. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 658(5), 209-215. https://doi.org/10.1016/j.physletb.2007.11.009

@article{60c2f0301add4f43a1d99ee4d3a70229,

title = "Forward coherent ϕ-meson photoproduction from deuterons near threshold",

abstract = "Differential cross sections and decay asymmetries for coherent φ\{symbol\}-meson photoproduction from deuterons were measured for the first time at forward angles using linearly polarized photons at Eγ = 1.5 - 2.4 GeV. This reaction offers a unique way to directly access natural-parity pomeron dynamics and gluon exchange at low energies. The cross sections at zero degrees increase with increasing photon energy. The decay asymmetries demonstrate a complete dominance of natural-parity exchange processes, showing that isovector unnatural-parity π-meson exchange is small. Nevertheless the deduced cross sections of φ\{symbol\}-mesons from nucleons contributed by isoscalar t-channel exchange processes are not well described by the conventional pomeron model.",

keywords = "Coherent interaction, Deuterons, Photoproduction, φ\{symbol\}-mesons",

author = "Chang, \{W. C.\} and K. Horie and S. Shimizu and M. Miyabe and Ahn, \{D. S.\} and Ahn, \{J. K.\} and H. Akimune and Y. Asano and S. Dat{\'e} and H. Ejiri and S. Fukui and H. Fujimura and M. Fujiwara and S. Hasegawa and K. Hicks and T. Hotta and K. Imai and T. Ishikawa and T. Iwata and Y. Kato and H. Kawai and Kim, \{Z. Y.\} and K. Kino and H. Kohri and N. Kumagai and Lin, \{P. J.\} and S. Makino and T. Matsuda and T. Matsumura and N. Matsuoka and T. Mibe and Y. Miyachi and M. Morita and N. Muramatsu 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 T. Sasaki and Shagin, \{P. M.\} and Y. Shiino and A. Shimizu 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.\}",

note = "Funding Information: The authors thank the SPring-8 staff for supporting the BL33LEP beam line and the LEPS experiment. We thank A.I. Titov for many fruitful discussions. This research was supported in part by the Ministry of Education, Science, Sports and Culture of Japan, by the National Science Council of Republic of China (Taiwan), Korea Research Foundation (KRF) and National Science Foundation (USA).",

year = "2008",

month = jan,

day = "10",

doi = "10.1016/j.physletb.2007.11.009",

language = "???core.languages.en\_GB???",

volume = "658",

pages = "209--215",

journal = "Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics",

issn = "0370-2693",

number = "5",

}

Chang, WC, Horie, K, Shimizu, S, Miyabe, M, Ahn, DS, Ahn, JK, Akimune, H, Asano, Y, Daté, S, Ejiri, H, Fukui, S, Fujimura, H, Fujiwara, M, Hasegawa, S, Hicks, K, Hotta, T, Imai, K, Ishikawa, T, Iwata, T, Kato, Y, Kawai, H, Kim, ZY, Kino, K, Kohri, H, Kumagai, N, Lin, PJ, Makino, S, Matsuda, T, Matsumura, T, Matsuoka, N, Mibe, T, Miyachi, Y, Morita, M, Muramatsu, N, Nakano, T, Niiyama, M, Nomachi, M, Ohashi, Y, Ohkuma, H, Ooba, T, Oshuev, DS, Rangacharyulu, C, Sakaguchi, A, Sasaki, T, Shagin, PM, Shiino, Y, Shimizu, A, 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 2008, 'Forward coherent ϕ-meson photoproduction from deuterons near threshold', Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, vol. 658, no. 5, pp. 209-215. https://doi.org/10.1016/j.physletb.2007.11.009

TY - JOUR

T1 - Forward coherent ϕ-meson photoproduction from deuterons near threshold

AU - Chang, W. C.

AU - Horie, K.

AU - Shimizu, S.

AU - Miyabe, M.

AU - Ahn, D. S.

AU - Ahn, J. K.

AU - Akimune, H.

AU - Asano, Y.

AU - Daté, S.

AU - Ejiri, H.

AU - Fukui, S.

AU - Fujimura, H.

AU - Fujiwara, M.

AU - Hasegawa, S.

AU - Hicks, K.

AU - Hotta, T.

AU - Imai, K.

AU - Ishikawa, T.

AU - Iwata, T.

AU - Kato, Y.

AU - Kawai, H.

AU - Kim, Z. Y.

AU - Kino, K.

AU - Kohri, H.

AU - Kumagai, N.

AU - Lin, P. J.

AU - Makino, S.

AU - Matsuda, T.

AU - Matsumura, T.

AU - Matsuoka, N.

AU - Mibe, T.

AU - Miyachi, Y.

AU - Morita, M.

AU - Muramatsu, N.

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 - Sasaki, T.

AU - Shagin, P. M.

AU - Shiino, Y.

AU - Shimizu, A.

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.

N1 - Funding Information: The authors thank the SPring-8 staff for supporting the BL33LEP beam line and the LEPS experiment. We thank A.I. Titov for many fruitful discussions. This research was supported in part by the Ministry of Education, Science, Sports and Culture of Japan, by the National Science Council of Republic of China (Taiwan), Korea Research Foundation (KRF) and National Science Foundation (USA).

PY - 2008/1/10

Y1 - 2008/1/10

N2 - Differential cross sections and decay asymmetries for coherent φ{symbol}-meson photoproduction from deuterons were measured for the first time at forward angles using linearly polarized photons at Eγ = 1.5 - 2.4 GeV. This reaction offers a unique way to directly access natural-parity pomeron dynamics and gluon exchange at low energies. The cross sections at zero degrees increase with increasing photon energy. The decay asymmetries demonstrate a complete dominance of natural-parity exchange processes, showing that isovector unnatural-parity π-meson exchange is small. Nevertheless the deduced cross sections of φ{symbol}-mesons from nucleons contributed by isoscalar t-channel exchange processes are not well described by the conventional pomeron model.

AB - Differential cross sections and decay asymmetries for coherent φ{symbol}-meson photoproduction from deuterons were measured for the first time at forward angles using linearly polarized photons at Eγ = 1.5 - 2.4 GeV. This reaction offers a unique way to directly access natural-parity pomeron dynamics and gluon exchange at low energies. The cross sections at zero degrees increase with increasing photon energy. The decay asymmetries demonstrate a complete dominance of natural-parity exchange processes, showing that isovector unnatural-parity π-meson exchange is small. Nevertheless the deduced cross sections of φ{symbol}-mesons from nucleons contributed by isoscalar t-channel exchange processes are not well described by the conventional pomeron model.

KW - Coherent interaction

KW - Deuterons

KW - Photoproduction

KW - φ{symbol}-mesons

UR - https://www.scopus.com/pages/publications/37349096586

U2 - 10.1016/j.physletb.2007.11.009

DO - 10.1016/j.physletb.2007.11.009

M3 - 期刊論文

AN - SCOPUS:37349096586

SN - 0370-2693

VL - 658

SP - 209

EP - 215

JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

IS - 5

ER -

Forward coherent ϕ-meson photoproduction from deuterons near threshold

Abstract

Keywords

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