Local chiral effective field theory interactions and quantum Monte Carlo applications - INSPIRE

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Local chiral effective field theory interactions and quantum Monte Carlo applications

A. Gezerlis
(
- Guelph U.
)
,
I. Tews
(
- Darmstadt, Tech. Hochsch. and
- Darmstadt, EMMI
)
,
E. Epelbaum
(
- Ruhr U., Bochum
)
,
M. Freunek
(
- Ruhr U., Bochum
)
,
S. Gandolfi
(
- Los Alamos
)

Jun 2, 2014

16 pages

Published in:

Phys.Rev.C 90 (2014) 5, 054323

Published: Nov 18, 2014

e-Print:

1406.0454 [nucl-th]

DOI:

10.1103/PhysRevC.90.054323

Report number:

LA-UR-14-23894

View in:

reference search241 citations

Citations per year

Abstract: (APS)

We present details of the derivation of local chiral effective field theory interactions to next-to-next-to-leading order and show results for nucleon-nucleon phase shifts and deuteron properties for these potentials. We then perform systematic auxiliary-field diffusion Monte Carlo calculations for neutron matter based on the developed local chiral potentials at different orders. This includes studies of the effects of the spectral-function regularization and of the local regulators. For all orders, we compare the quantum Monte Carlo results with perturbative many-body calculations and find excellent agreement for low cutoffs.

Note:

17 pages, 11 figures, published version, LA-UR-14-23894

21.60.Ka
21.30.-x
21.65.Cd
26.60.-c
effective field theory: chiral
interaction
potential: chiral
numerical calculations: Monte Carlo
nucleon nucleon: phase shift
n: matter

References(77)

Figures(18)

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