Analysis of mass difference of the $π$ and $ρ$ with Bethe-Salpeter equation

Details Analysis of mass difference of the $π$ and $ρ$ with Bethe-Salpeter equation Analysis of mass difference of the $π$ and $ρ$ with Bethe-Salpeter equation

2010-06-24

arxiv.org/abs/1006.4704v3

Chin. Phys. Lett.28:081201, 2011

Physics

High Energy Physics

High Energy Physics - Phenomenology

7 pages, 1 figure, revised version

Scientific paper

10.1088/0256-307X/28/8/081201

In this article, we take into account the one-pion exchange force besides the
one-gluon exchange force to study the mass difference of the $\pi$ and $\rho$
mesons with the Bethe-Salpeter equation. After projecting the Bethe-Salpeter
equation into an simple form, we can see explicitly that the bound energy
$|E_\pi|\gg |E_\rho|$.

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