Deuteron Breakup in theH2(e,e′

Abstract

Deuteron breakup has been studied in a 2H(e,e' p) coincidence experiment at low momentum transfer and for energies close to threshold. The longitudinal-plus-transverse ( L+T) and longitudinal-transverse ( LT) interference cross sections are deduced. Nonrelativistic calculations based on the Bonn potential and including leading order relativistic contributions, meson exchange currents, and isobar configurations describe the ( L+T) data well. Surprisingly, large deviations of 30% to 45% are observed for the LT contribution.

General survey of polarization observables in deuteron electrodisintegration

“…With this we will close the discussion of our results. We will not compare to experimental data on the exclusive reaction [61][62][63][64][65][66][67][68][69][70][71][72][73][74][75] because they have already been compared to our approach and thus nothing new can be said.…”

The longitudinal response function of the deuteron in chiral effective field theory

“…Christlmeier and Grießhammer computed deuteron electrodisintegration at very low energies and momentum transfers in the pionless effective field theory [61]. They demonstrated the incompatibility of the data on the mixed response function f LT , published by von Neumann-Cosel et al with the low-energy NN phase-shift data and our knowledge of other electromagnetic transitions in the NN system [62]. This helped them diagnose a flaw in the analysis of Ref.…”

“…This helped them diagnose a flaw in the analysis of Ref. [62]. Pionless EFT was also successfully applied to the (e, e ′ ) data taken in a later experiment at S-DALINAC [49].…”

Measurement of the ReactionH2(e,e′)at 180° Close to the Deuteron Breakup Threshold

“…The description of deuteron electrodisintegration in this framework has been discussed by Christlmeier and Grießhammer [37], which resolved also discrepancies between theory and earlier exclusive 2 He; e 0 pn experiments [38]. The E1 amplitude follows up to next-to-next-toleading order from minimal substitution of all derivatives in the NN Lagrangian.…”