Scattering length of the ground state Mg+Mg collision

Details Scattering length of the ground state Mg+Mg collision Scattering length of the ground state Mg+Mg collision

2001-12-18

arxiv.org/abs/physics/0112050v1

Physics

Atomic Physics

15 pages, 3 figures, Submitted Phys. Rev. A

Scientific paper

10.1103/PhysRevA.65.042722

We have constructed the X 1SIGMAg+ potential for the collision between two ground state Mg atoms and analyzed the effect of uncertainties in the shape of the potential on scattering properties at ultra-cold temperatures. This potential reproduces the experimental term values to 0.2 inverse cm and has a scattering length of +1.4(5) nm where the error is prodominantly due to the uncertainty in the dissociation energy and the C6 dispersion coefficient. A positive sign of the scattering length suggests that a Bose-Einstein condensate of ground state Mg atoms is stable.

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