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Nuclear Theory

arXiv:1606.00592v1 (nucl-th)
[Submitted on 2 Jun 2016 (this version), latest version 18 May 2017 (v2)]

Title:Precise Determination of Charge Dependent Pion-Nucleon-Nucleon Coupling Constants

Authors:R. Navarro Perez, J.E. Amaro, E. Ruiz Arriola
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Abstract:We undertake a covariance error analysis of the pion-nucleon-nucleon coupling constants from the Granada-2013 np and pp database comprising a total of 6713 scattering data. Assuming a unique pion-nucleon coupling constant we obtain $f^2=0.0761(3)$. The effects of charge symmetry breaking on the $^3P_0$, $^3P_1$ and $^3P_2$ partial waves are analyzed and we find $f_{p}^2 = 0.0759(4)$, $f_{0}^2 = 0.079(1)$ and $f_{c}^2 = 0.0763(6)$ with minor correlations among the coupling constants. We successfully test normality for the residuals of the fit.
Comments: 8 pages, 4 figures
Subjects: Nuclear Theory (nucl-th); High Energy Physics - Phenomenology (hep-ph); Nuclear Experiment (nucl-ex)
Cite as: arXiv:1606.00592 [nucl-th]
  (or arXiv:1606.00592v1 [nucl-th] for this version)
  https://doi.org/10.48550/arXiv.1606.00592

Submission history

From: Enrique Ruiz Arriola [view email]
[v1] Thu, 2 Jun 2016 09:03:03 UTC (593 KB)
[v2] Thu, 18 May 2017 16:10:15 UTC (982 KB)
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