Observation of coherent pi(0) electroproduction on deuterons at large momentum transfer

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Tomasi-Gustafsson E., Bimbot L., Danagoulian S., Gustafsson K., Mack D., Mkrtchyan H., ...More

PHYSICS OF ATOMIC NUCLEI, vol.66, no.12, pp.2159-2168, 2003 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 66 Issue: 12
  • Publication Date: 2003
  • Doi Number: 10.1134/1.1634323
  • Journal Name: PHYSICS OF ATOMIC NUCLEI
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.2159-2168
  • Middle East Technical University Affiliated: No

Abstract

The first experimental results for the coherent pi(0) electroproduction on a deuteron, e + d --> e + d + pi(0), at large momentum transfer, are reported. The experiment was performed at Jefferson Laboratory at an incident electron energy of 4.05 GeV. A large pion production yield has been observed in the kinematical region 1.1 < Q(2) < 1.8 GeV2, from the threshold to 200-MeV excitation energy in the dpi(0) system. The Q(2) dependence is compared with theoretical predictions. (C) 2003 MAIK "Nauka/Interperiodica".