# Tensor Correlations Measured in 3He(e,e'pp)n

Abstract : We have measured the 3He(e,e'pp)n reaction at an incident energy of 4.7 GeV over a wide kinematic range. We identified spectator correlated pp and pn nucleon pairs using kinematic cuts and measured their relative and total momentum distributions. This is the first measurement of the ratio of pp to pn pairs as a function of pair total momentum, $p_{tot}$. For pair relative momenta between 0.3 and 0.5 GeV/c, the ratio is very small at low $p_{tot}$ and rises to approximately 0.5 at large $p_{tot}$. This shows the dominance of tensor over central correlations at this relative momentum.
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Journal articles
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http://hal.in2p3.fr/in2p3-00510504
Contributor : Emmanuelle Vernay <>
Submitted on : Thursday, August 19, 2010 - 8:48:17 AM
Last modification on : Friday, November 27, 2020 - 5:52:10 AM

### Citation

H. Baghdasaryan, L.B. Weinstein, J.M. Laget, K.P. Adhikari, M. Aghasyan, et al.. Tensor Correlations Measured in 3He(e,e'pp)n. Physical Review Letters, American Physical Society, 2010, 105, pp.222501. ⟨10.1103/PhysRevLett.105.222501⟩. ⟨in2p3-00510504⟩

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