Study Of The Mechanism Of The Reaction He-4(E,E''p) H-3

J.F.J. van den Brand, H.P. BLOK, H.J. BULTEN, R. ENT, E. JANS, G.J. KRAMER, J.M. LAGET, J.B.J.M. LANEN, L. LAPIKAS, J.S. ROEBERS, R. SCHIAVILLA, G. VANDERSTEENHOVEN, P.K.A.D. HUBERTS

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Abstract

A serious breakdown of the distorted-wave impulse approximation has recently been observed in the proton-knockout reaction He-4(e,e''p)H-3. In the phenomenological description of the data, charge-exchange contributions were included through a coupled-channel calculation. New data obtained in a wide range of kinematical configurations are presented in order to study the anomaly in more detail. Its magnitude and dependence on momentum transfer are well accounted for by a newly presented microscopic description of various interaction effects, including meson-exchange currents and charge-exchange processes.
Original languageEnglish
Pages (from-to)409-412
Number of pages4
JournalPhysical Review Letters
Volume66
Issue number4
DOIs
Publication statusPublished - 28 Jan 1991
Externally publishedYes

Keywords

  • INELASTIC ELECTRON-SCATTERING
  • REACTION C-12(E,E''P)
  • RESPONSE FUNCTIONS
  • NUCLEAR-MEDIUM
  • ELECTRODISINTEGRATION
  • DEPENDENCE

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