Speaker
Dr
Ingo Kirsch
(ETH Zuerich)
Description
In this talk I show how heavy-light mesons can be studied using the AdS/CFT
correspondence. For this I embed two D7 brane probes at different positions into the
dual supergravity background. I establish the non-Abelian Dirac-Born-Infeld (DBI)
action for these probes which involves a 2x2 matrix. The off-diagonal elements of
this U(2) fluctuation matrix correspond to the heavy-light mesons, while the diagonal
elements correspond to the light-light and heavy-heavy mesons, respectively. Among
other results, I find that heavy-light mesons scale differently with the 't Hooft
coupling than the mesons involving quarks of equal mass.
Primary author
Dr
Ingo Kirsch
(ETH Zuerich)
