Eur. Phys. J. A (2006) 27: 47-52
https://doi.org/10.1140/epja/i2005-10228-6

Nuclear Structure and Reactions

Ab initio calculation of the ⁴He(e, e'd )d reaction

¹ Dipartimento di Fisica, Università di Trento, I-38050, Povo, Italy
² Gruppo Collegato di Trento, Istituto Nazionale di Fisica Nucleare, I-38050, Povo, Italy
³ Russian Research Centre “Kurchatov Institute", 123182, Moscow, Russia

^* e-mail: leideman@science.unitn.it

Received: 25 October 2005
Accepted: 31 January 2006
Published online: 23 February 2006

Abstract

The two-body knock-out reaction ⁴He(e, e'd )d is calculated at various momentum transfers. The full four-nucleon dynamics is taken into account microscopically both in the initial and the final states. As NN interaction the central MT-I/III potential is used. The calculation shows a strong reduction of the coincidence cross-section due to the final-state interaction. Nonetheless, the theoretical results exhibit a considerable overestimation of the experimental cross-section at lower momentum transfer. Comparisons with other, less complete, calculations suggest that consideration of a more realistic ground state might not be sufficient for a good agreement with experiment, rather a more realistic final-state interaction could play an essential role.