Coherent pi(0) electroproduction on the deuteron


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Rekalo M., Tomasi-Gustafsson E., Arvieux J.

ANNALS OF PHYSICS, cilt.295, ss.1-32, 2002 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 295 Konu: 1
  • Basım Tarihi: 2002
  • Doi Numarası: 10.1006/aphy.2001.6208
  • Dergi Adı: ANNALS OF PHYSICS
  • Sayfa Sayıları: ss.1-32

Özet

A general analysis of polarization phenomena for coherent pion electroproduction on deuterons is presented. The spin and isospin structures of the gamma* + d --> d + P-0 amplitudes (where gamma* is a virtual photon) are established and relationships between meson electroproduction on deuterons and on nucleons are given in the framework of the impulse approximation. The reaction e + d --> e + d + pi(0) is investigated in detail, for a relatively large value of momentum transfer, 0.5 GeV2 less than or equal to -k(2) less than or equal to 2 GeV2, both at threshold and in the region of Delta-isobar excitation. Special attention is devoted to the sensitivity of different contributions to the exclusive cross section for d(e, epi(0))d, as the gamma*piomega form factor or the NN-potential. The predicted k(2)-dependence of the cross section agrees well with the available experimental data. (C) 2002 Elsevier Science (USA).