Incoherent φ photo-production from deuteron in SPring-8/LEPS

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

We present measurements of differential cross sections and decay asymmetries of incoherent φ-meson photo-production from the deuteron at forward angles using linearly polarized photons beam in energy range from the production threshold to E=2.4GeV. The experiment was performed at the SPring-8/LEPS facility. The differential cross section of incoherent production shows a large suppression compared with the free proton case. The reduction for the deuteron cannot be clearly explained in terms of simple isospin asymmetry. The decay asymmetry of incoherent φ photo-production shows that the eta exchange process is small. Since the exclusive K+K-p cross section shows the same reduction with incoherent, both the proton and neutron cross section reduce similarly. Consequently, the π-η interference effect is small too. The present results suggest that our understanding of φ photo-production within a nucleus should be rearranged.

Original languageEnglish
Title of host publicationInternational Conference on the Structure of Baryons, BARYONS'10
Pages238-241
Number of pages4
DOIs
Publication statusPublished - 2011
Externally publishedYes
EventInternational Conference on the Structure of Baryons, BARYONS'10 - Osaka, Japan
Duration: 2010 Dec 72010 Dec 11

Publication series

NameAIP Conference Proceedings
Volume1388
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Other

OtherInternational Conference on the Structure of Baryons, BARYONS'10
CountryJapan
CityOsaka
Period10/12/710/12/11

Keywords

  • meson
  • phi
  • photo-production

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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