Hong-Wei Ke

Evaluating decay Rates and Asymmetries of Lambda(b) into Light Baryons in LFQM

In this work we calculate the branching ratios of semileptonic and nonleptonic decays of {lambda}{sub b} into light baryons (p and {lambda}), as well as the measurable asymmetries which appear in the processes, in the light-front quark model. In the calculation, we adopt the diquark picture and discuss the justifiability of applying the picture in our case. Our result on the branching ratio of {lambda}{sub b}{yields}{lambda}+J/{psi} is in good agreement with the data. More predictions are made in the same model and the results will be tested in the future experiments which will be conducted at the Large Hadron Collider beauty and even the International Linear Collider.

Line shape of the radiative open-charm decay of Y ( 4140 ) and Y ( 3930 )

In this work, we study the radiative open-charm decays

Whether new data on D(s) ---> f(0)(980) e+ nu(e) can be understood if f(0)(980) consists of only the conventional q anti-q structure

Y(4140)\ensuremath{\rightarrow}{D}_{s}^{*+}{D}_{s}^{\ensuremath{-}}\ensuremath{\gamma}

Is Z b (10610) a molecular state

and

The radiative decays of

Y(3930)\ensuremath{\rightarrow}{D}^{*+}{D}^{\ensuremath{-}}\ensuremath{\gamma}

0^{++}

under the assignments of

and

{D}_{s}^{*}{\overline{D}}_{s}^{*}

1^{+-}

and

heavy mesons

{D}^{*}{\overline{D}}^{*}

Vertex functions for d-wave mesons in the light-front approach

as molecular states for