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- W2046747079 abstract "We consider the Isgur-Wise function xi(omega) within a new modified version of a heavy-light chiral quark model. While early versions of such models gave too small absolute value of the slope, namely xi'(1) of about -0.4 to -0.3, we show how extended version(s) may lead to values around -1, in better agreement with recent measurements. This is obtained by introducing a new mass parameter in the heavy quark propagator. We also shortly comment on the consequences for the decay modes B --> D D-bar." @default.
- W2046747079 created "2016-06-24" @default.
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- W2046747079 date "2010-04-16" @default.
- W2046747079 modified "2023-09-23" @default.
- W2046747079 title "Isgur-Wise function within a modified heavy-light chiral quark model" @default.
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- W2046747079 doi "https://doi.org/10.1103/physrevd.81.074015" @default.
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