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The widths of the τ → [ρ0(770), ρ0(1450)]π−ντ decays have been calculated within the extended Nambu—Jona-Lasinio model including both the ground and first radially excited intermediate meson states. The axial-vector… Click to show full abstract
The widths of the τ → [ρ0(770), ρ0(1450)]π−ντ decays have been calculated within the extended Nambu—Jona-Lasinio model including both the ground and first radially excited intermediate meson states. The axial-vector channel with intermediate a1 mesons dominates. The values of the masses and total widths of the a1 meson recently obtained by the COMPASS and JPAC Collaborations have been taken into account.
Keywords:
dependence widths;
1450 decays;
widths 770;
intermediate meson;
770 1450;
meson
Journal Title: JETP Letters
Year Published: 2019
Link to full text (if available)
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Journal Title: JETP Letters
Year Published: 2019
Link to full text (if available)
Share on Social Media: Sign Up to like & get
recommendations!