The Isgur-Wise Function within a Modified Heavy-Light Chiral Quark Model (CROSBI ID 160282)
Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
Eeg, Jan O. ; Kumerički, Krešimir
engleski
The Isgur-Wise Function within a Modified Heavy-Light Chiral Quark Model
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.
B mesons; D mesons; Quark models; Chiral Lagrangians
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Podaci o izdanju
81 (7)
2010.
074015-1-074015-10
objavljeno
1550-7998
10.1103/PhysRevD.81.074015