Elsevier

Physics Letters B

Volume 27, Issue 7, 2 September 1968, Pages 405-408
Physics Letters B

Neutron-neutron scattering length from a comparison of the 2H(p,n) 2p and 2H(n,p) 2n reactions

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Abstract

A study of the reaction 2H(p,n)2p is reported which resolves the discrepancy among the values of the 1S0 n-n scattering length deduced from the reaction 2H(n,p)2n. Our value an = −16.7+2.6−3.0fm is consistent with results from the 2H(π, 2n)γ and 3H(d,3He)2n reactions.

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This work was performed under the auspices of the U.S. Atomic Energy Commission.

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