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Open AccessJournal ArticleDOI

Coarse-grained potential analysis of neutron-proton and proton-proton scattering below the pion production threshold

R. Navarro Pérez, +2 more
- 06 Dec 2013 - 
- Vol. 88, Iss: 6, pp 064002
TLDR
In this article, the authors presented a successful fit to neutron-proton and protonproton scattering data below pion production threshold using the delta-shell representation, which includes data within the years 1950 to 2013.
Abstract
Using the delta-shell representation we present a successful fit to neutron-proton and proton-proton scattering data below pion production threshold. A detailed overview of the theory necessary to calculate observables with this potential is presented. A new data selection process is used to obtain the largest mutually consistent data base. The analysis includes data within the years 1950 to 2013. Using 46 parameters we obtain chi^2/Ndata = 1.04 with Ndata = 6713 including normalization data. Phase shifts with error bars are provided.

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Citations
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Improved chiral nucleon-nucleon potential up to next-to-next-to-next-to-leading order

TL;DR: In this article, the authors presented improved nucleon-nucleon potentials derived in chiral effective field theory up to next to next-next-to-next tonext-leading order, which are able to reduce finite-cutoff artefacts by using an appropriate regularization in coordinate space which maintains the analytic structure of the amplitude.
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Improved chiral nucleon-nucleon potential up to next-to-next-to-next-to-leading order

TL;DR: In this paper, Epelbaum et al. presented improved nucleon-nucleon potentials derived in chiral effective field theory up to next-to-next-tonext-leading order, which are able to significantly reduce finite-cutoff artefacts by using an appropriate regularization in coordinate space.
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Nuclear effective field theory: status and perspectives

TL;DR: The nuclear physics landscape has been redesigned as a sequence of effective field theories (EFTs) connected to the Standard Model through symmetries and lattice simulations of Quantum Chromodynamics (QCD) as mentioned in this paper.
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Roy-Steiner-equation analysis of pion-nucleon scattering

TL;DR: In this article, the structure of Roy-Steiner equations for pion-nucleon scattering, the solution for the partial waves of the t -channel process π π → N N, as well as the high-accuracy extraction of the pionnucleons S -wave scattering lengths from data on pionic hydrogen and deuterium are reviewed.
References
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Numerical Recipes in FORTRAN

TL;DR: The Diskette v 2.04, 3.5'' (720k) for IBM PC, PS/2 and compatibles [DOS] Reference Record created on 2004-09-07, modified on 2016-08-08.

Numerical Recipes in FORTRAN - The Art of Scientific Computing - Second Edition

TL;DR: This paper presents a list of recommended recipes for making CDRom decks and some examples of how these recipes can be modified to suit theommelier's needs.
Journal ArticleDOI

Accurate nucleon-nucleon potential with charge-independence breaking

TL;DR: The authors present a new high-quality nucleon-nucleon potential with explicit charge dependence and charge asymmetry, which they designate Argonne {upsilon}{sub 18}.
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