Scalar meson mass from renormalized One Boson Exchange Potential

Details Scalar meson mass from renormalized One Boson Exchange Potential Scalar meson mass from renormalized One Boson Exchange Potential

2008-04-15

arxiv.org/abs/0804.2350v1

AIP Conf.Proc.1030:334-338,2008

Physics

Nuclear Physics

Nuclear Theory

Talk presented by ACC at SCADRON 70 Workshop on "Scalar Mesons and Related Topics" Lisbon, 11-16 February 2008

Scientific paper

10.1063/1.2973523

We determine the mass and strength of the scalar meson from NN scattering data by renormalizing the One Boson Exchange Potential. This procedure provides a great insensitivity to the unknown short distance interaction making the vector mesons marginally important and allowing for SU(3) couplings in the 1S0 channel. The scalar meson parameters are tightly constrained by low energy np. We discuss whether this scalar should be compared to the recent findings based on the Roy equations analysis of pipi scattering.

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