摘要The one-pion exchange force in addition to the one-gluon exchange force is taken into account to study the mass difference of the π and ρ mesons with the Bethe–Salpeter equation. After projecting the Bethe–Salpeter equation into a simple form, it can be seen explicitly that the bound energy |Eπ|≫|Eρ|.
Abstract：The one-pion exchange force in addition to the one-gluon exchange force is taken into account to study the mass difference of the π and ρ mesons with the Bethe–Salpeter equation. After projecting the Bethe–Salpeter equation into a simple form, it can be seen explicitly that the bound energy |Eπ|≫|Eρ|.
WANG Zhi-Gang**
. Analysis of Mass Difference of the π and ρ with Bethe–Salpeter Equation[J]. 中国物理快报, 2011, 28(8): 81201-081201.
WANG Zhi-Gang**
. Analysis of Mass Difference of the π and ρ with Bethe–Salpeter Equation. Chin. Phys. Lett., 2011, 28(8): 81201-081201.
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