This title appears in the Scientific Report :
2010
Please use the identifier:
http://hdl.handle.net/2128/10435 in citations.
Please use the identifier: http://dx.doi.org/10.1140/epja/i2009-10755-0 in citations.
Ground state energy of dilute neutron matter at next-to-leading order in lattice chiral effective field theory.
Ground state energy of dilute neutron matter at next-to-leading order in lattice chiral effective field theory.
We present lattice calculations for the ground-state energy of dilute neutron matter at next-to-leading order in chiral effective field theory. This study follows a series of recent papers on low-energy nuclear physics using chiral effective field theory on the lattice. In this work we introduce an...
Saved in:
Personal Name(s): | Epelbaum, E. |
---|---|
Krebs, H. / Lee, D. / Meissner, U.G. | |
Contributing Institute: |
Theorie der starken Wechselwirkung; IKP-3 |
Published in: | The @European physical journal / A, 40 (2009) S. 199 - 213 |
Imprint: |
Berlin
Springer
2009
|
Physical Description: |
199 - 213 |
DOI: |
10.1140/epja/i2009-10755-0 |
Document Type: |
Journal Article |
Research Program: |
Physik der Hadronen und Kerne |
Series Title: |
European Physical Journal A
40 |
Subject (ZB): | |
Link: |
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Publikationsportal JuSER |
Please use the identifier: http://dx.doi.org/10.1140/epja/i2009-10755-0 in citations.
We present lattice calculations for the ground-state energy of dilute neutron matter at next-to-leading order in chiral effective field theory. This study follows a series of recent papers on low-energy nuclear physics using chiral effective field theory on the lattice. In this work we introduce an improved spin- and isospin-projected leading-order action which allows for a perturbative treatment of corrections at next-to-leading order and smaller estimated errors. Using auxiliary fields and Euclidean-time projection Monte Carlo, we compute the ground state of 8, 12, and 16 neutrons in a periodic cube, covering a density range from 2% to 10% of normal nuclear density. |