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  Masses of Scalar and Axial-Vector B Mesons: A Challenge to the Quark Model?
 

 

 
 

Time: 1:20pm, April 27 (Thursday)

Title: Masses of Scalar and Axial-Vector B Mesons: A Challenge to the Quark Model?

Speaker: Dr. Hai-Yang Cheng, Distinguished Research Fellow
   (Institute of Physics, Academia Sinica)

Place:Science Building III 1F SC157

Abctract:
The SU(3) quark model encounters a great challenge in describing even-parity mesons.
Specifically, the two-quark model has difficulties in understanding the light scalar mesons below 1 GeV,
scalar and axial-vector charmed mesons and the charmonium-like state X(3872).
A common wisdom for the resolution of these difficulties lies on the coupled channel
effects which will distort the quark model calculations. In this talk, I'll focus on
the near mass degeneracy of scalar charmed mesons and discuss its implications on B physics.

 

     
 
Update: 2017/4/20
Contacts: Li-Chun Chen

 
   
 
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