2007年3月23日
Forward coherent $φ$-meson photoproduction fromdeuterons near threshold
Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
- 巻
- Phys.Lett.B658:209-215
- 号
- 5
- 開始ページ
- 209
- 終了ページ
- 215
- 記述言語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1016/j.physletb.2007.11.009
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. © 2007 Elsevier B.V. All rights reserved.
- リンク情報
-
- DOI
- https://doi.org/10.1016/j.physletb.2007.11.009
- arXiv
- http://arxiv.org/abs/nucl-ex/0703034
- Web of Science
- https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000252612500006&DestApp=WOS_CPL
- Arxiv Url
- http://arxiv.org/abs/nucl-ex/0703034v2
- Arxiv Url
- http://arxiv.org/pdf/nucl-ex/0703034v2 本文へのリンクあり
- URL
- http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=37349096586&origin=inward
- ID情報
-
- DOI : 10.1016/j.physletb.2007.11.009
- ISSN : 0370-2693
- arXiv ID : nucl-ex/0703034
- Web of Science ID : WOS:000252612500006