Few-body universality in the deuteron- α system

Lei, Jin; Hlophe, L.; Elster, Ch.; Nogga, A.; Nunes, F. M.; Phillips, D. R.

doi:10.1103/PhysRevC.98.051001

Few-body universality in the deuteron- $α$ system

Journal Article · Tue Nov 27 00:00:00 EST 2018 · Physical Review C

DOI:https://doi.org/10.1103/PhysRevC.98.051001· OSTI ID:1544157

Lei, Jin ^[1]; Hlophe, L. ^[2]; Elster, Ch. ^[1]; Nogga, A. ^[3]; Nunes, F. M. ^[2]; Phillips, D. R. ^[4]

Ohio Univ., Athens, OH (United States)
Michigan State Univ., East Lansing, MI (United States)
Forschungszentrum Julich (Germany)
Ohio Univ., Athens, OH (United States); Technische Univ. Darmstadt (Germany). Inst. fur Kernphysik; GSI-Helmholtzzentrum fur Schwerionenforschung, Darmstadt (Germany)

We treat ⁶Li as an effective three-body (n-p-α) system and compute the d-α S-wave scattering length and three-body separation energy of ⁶Li for a wide variety of nucleon-nucleon and α-nucleon potentials which have the same (or nearly the same) phase shifts. The Coulomb interaction in the p-α subsystem is omitted. The results of all calculations lie on a one-parameter curve in the plane defined by the d-α S-wave scattering length and the amount by which ⁶Li is bound with respect to the n-p-α threshold. We argue that these aspects of the n-p-α system can be understood using few-body universality and that ⁶Li can thus usefully be thought of as a two-nucleon halo nucleus.

View Accepted Manuscript (DOE)

Research Organization:: Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States). National Energy Research Scientific Computing Center (NERSC)

Sponsoring Organization:: USDOE

Grant/Contract Number:: AC02-05CH11231; FG02-93ER40756

OSTI ID:: 1544157

Alternate ID(s):: OSTI ID: 1483451

Journal Information:: Physical Review C, Journal Name: Physical Review C Journal Issue: 5 Vol. 98; ISSN PRVCAN; ISSN 2469-9985

Publisher:: American Physical Society (APS)Copyright Statement

Country of Publication:: United States

Language:: English

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