Neutron-neutron scattering length from a comparison of the 2H(p,n) 2p and 2H(n,p) 2n reactions |
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| Affiliation: | 1. State Key Laboratory of Ocean Engineering, Shanghai Jiao Tong University, Shanghai 200240, PR China;2. Shanghai Key Laboratory for Digital Maintenance of Buildings and Infrastructure, School of Naval Architecture, Ocean and Civil Engineering, Shanghai Jiao Tong University, Shanghai 200240, PR China;3. 3rd Construction Co., Ltd. of China Construction 5th Engineering Bureau, Changsha, Hunan 410004, PR China |
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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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