期刊
PHYSICAL REVIEW C
卷 89, 期 4, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevC.89.044301
关键词
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资金
- National Science Foundation [PHY-1002478]
- Department of Energy [DE-FG02-96ER40963, DE-AC05-00OR22725, DE-SC0008499/DE-SC0008533]
- Division Of Physics
- Direct For Mathematical & Physical Scien [1002478, 1306250] Funding Source: National Science Foundation
Recent work has demonstrated that the infrared effects of harmonic oscillator basis truncations are well approximated by a partial-wave Dirichlet boundary condition at a properly identified radius L. This led to formulas for extrapolating the corresponding energy E-L and other observables to infinite L and thus infinite basis size. Here we reconsider the energy for a two-body system with a Dirichlet boundary condition at L to identify and test a consistent and systematic expansion for E-L that depends only on observables. We also generalize the energy extrapolation formula to nonzero angular momentum, and apply it to the deuteron. Formulas given previously for extrapolating the radius are derived in detail.
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