[Theory-seminars] reminder: Peter Kroll, today 11:00am, L104

[Bernhard Musch]

Dear all,

We have a seminar talk by Peter Kroll in about one hour. Here is the 
information

Theory Seminar, Friday, May 13, 11:00 am, room L104
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Peter Kroll, Universitaet Wuppertal

*The form factors for the photon to pseudoscalar meson transitions
in QCD*

The form factors for the transitions pi-gamma, eta-gamma, eta'-gamma, 
and eta_c-gamma are analyzed within the modified perturbative approach in 
which quark transverse degrees of freedom are retained. The results for 
the form factors are compared to experiment in detail. As compared to 
previous calculations within the same approach only little modifications 
of the meson distribution amplitudes are required in general in order to 
achieve reasonable agreement with experiment. Only for the πγ form 
factor a strong contribution from the second Gegenbauer term is found. 
It also commented on the case of two virtual photons and on the 
transition form factors in the time-like region.


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A complete list of upcoming theory seminars and talks from previous
seminars are available from:
http://www.jlab.org/~prokudin/seminars/

Alexei, Berni and Satoshi
JLab Theory Seminar Organizers



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___________________________________________
Bernhard Musch

Theory Center
Jefferson Lab
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