Two-nucleon momentum distributions measured in 3He(e,e'pp)n.
Phys Rev Lett
; 92(5): 052303, 2004 Feb 06.
Article
em En
| MEDLINE
| ID: mdl-14995301
ABSTRACT
We have measured the 3He(e,e'pp)n reaction at 2.2 GeV over a wide kinematic range. The kinetic energy distribution for "fast" nucleons (p>250 MeV/c) peaks where two nucleons each have 20% or less, and the third nucleon has most of the transferred energy. These fast pp and pn pairs are back to back with little momentum along the three-momentum transfer, indicating that they are spectators. Calculations by Sargsian and by Laget also indicate that we have measured distorted two-nucleon momentum distributions by striking one nucleon and detecting the spectator correlated pair.
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MEDLINE
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En
Ano de publicação:
2004
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Article