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Improving the convergence of the chiral expansion for nuclear forces I: Peripheral phases

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arxiv nucl-th/0304037 v2 pith:RQEIPETO submitted 2003-04-14 nucl-th hep-ph

Evgeny Epelbaum , Walter Glöckle , Ulf-G. Mei{ss}ner This is my paper
classification nucl-thhep-ph
keywords chiralregularizationallowsangularcalculationcomparedconsistentconstraints
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We study the two-pion exchange potential at next-to-next-to-leading order in chiral effective field theory. We propose a new cut-off scheme for the pion loop integrals based on spectral function regularization. We show that this method allows for a consistent implementation of constraints from pion-nucleon scattering. It leads to a much improved description of the partial waves with angular momentum l \geq 2 as compared to the calculation utilizing dimensional regularization.

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Cited by 1 Pith paper

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  1. Scrutiny of the new class of three-nucleon forces

    nucl-th 2025-12 conditional novelty 3.0 of 10

    After removing renormalization-scheme-dependent short-distance parts, the scrutinized three-nucleon forces yield small contributions to neutron and symmetric nuclear matter equations of state, aligning with standard c...

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