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- W4300339574 abstract "We present a new phenomenological Nucleon-Nucleon chiral potential fitted to 925 pp and 1743 np scattering data selected from the Granada-2013 NN-database up to a laboratory energy of $125$ MeV with 20 short distance parameters and three chiral constants $c_1$, $c_3$ and $c_4$ with $chi^2/nu = 1.02$. Special attention is given to testing the normality of the residuals which allows for a sound propagation of statistical errors from the experimental data to the potential parameters, phase-shifts, scattering amplitudes and counter-terms. This fit allows for a new determination of the chiral constants $c_1$, $c_3$ and $c_4$ compatible with previous determinations from NN data. This new interactions is found to be softer than other high quality potentials by undertaking a Weinberg eigenvalue analysis. We further explore the interplay between the error analysis and the assumed form of the short distance interaction. The present work shows that it is possible to fit NN scattering with a TPE chiral potential fulfilling all necessary statistical requirements up to 125 MeV and shows unequivocal non-vanishing D-wave short distance pieces." @default.
- W4300339574 created "2022-10-03" @default.
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- W4300339574 date "2014-11-05" @default.
- W4300339574 modified "2023-09-29" @default.
- W4300339574 title "Low energy chiral two pion exchange potential with statistical uncertainties" @default.
- W4300339574 doi "https://doi.org/10.48550/arxiv.1411.1212" @default.
- W4300339574 hasPublicationYear "2014" @default.
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