43 citations · 102 across the 4 of their papers we have counts for
4 papers · 1 filter
Weak Decays in the light--front Quark Model
Patrick J. O'Donnell, Q. P. Xu, Humphrey K. K. Tung
We study the form factors of heavy--to--heavy and heavy--to--light weak decays using the light--front relativistic quark model. For the heavy--to--heavy $B \ra D^{(\ast)}$ semilept…
Strong and Radiative Decays
Patrick J. O'Donnell, Q. P. Xu
We use the relativistic light--front quark model to show that both strong and radiative decays are in good agreement with the 1992 CLEO II results. In particular the coupl…
Semileptonic and Exclusive Rare B Decays
Patrick J. O'Donnell, Q. P. Xu
The exclusive rare decay $B \ra K^\ast γ$ takes place in a region of maximum recoil, , posing a problem for nonrelativistic quark models which are usually thought to be mo…
A Bjorken sum rule for semileptonic decays to ground and excited charmed baryon states
Q. P. Xu
We derive a Bjorken sum rule for semileptonic decays to ground and low-lying negative-parity excited charmed baryon states, in the heavy quark limit. We discuss the restricti…