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Two-Nucleon Momentum Distributions Measured in 3He(e,e'pp)n

CLAS Collaboration·R. A. Niyazov·L. B. Weinstein
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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. Experimental and theoretical evidence indicates that we have measured distorted two-nucleon momentum distributions by striking the third nucleon and detecting the spectator correlated pair.

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CLAS Collaboration, R. A. Niyazov, L. B. Weinstein. 2003-08-15. Two-Nucleon Momentum Distributions Measured in 3He(e,e'pp)n. https://doi.org/10.1103/physrevlett.92.052303

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