[Theory-seminars] Reminder: Seminar TODAY (Monday)

[Christopher Thomas]

Dear all,

This is a reminder that we have a theory seminar this afternoon (Monday, 
March 15th) at 1pm in L104:

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Monday, March 15th
1pm (coffee at 12:45pm)
Room L104

*Coupled channel effects in meson photo and electroproduction at high
energy*
	
Jean-Marc Laget
JLab

In the energy range accessible at JLab6 and JLab12, the coupling to the
vector meson production channels provides us with a natural explanation
of two long standing problems: i) the magnitude of the cross section of
charged pion photoproduction near 90 degrees and its scaling behavior
(s^-7), ii) the strong cross section of the neutral pion 
electroproduction at large Q^2 recently measured at JLab. I will 
present this approach which relates the amplitudes of several reactions 
recently determined at JLab.


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Wednesday, March 17th
3pm
Room L104

*Exotic and excited-state radiative transitions in charmonium from
lattice QCD*

Christopher Thomas
JLab

I will discuss recent calculations of meson radiative transition form
factors in lattice QCD.  Results in the charmonium region, involving
excited charmonium states, states of high spin and exotics, will be
presented and I will highlight interesting results involving an exotic
1-+ and a vector-hybrid candidate.  I concentrate on the phenomenology
of the results, comparing with experimental data and with models.  To
conclude I give comments on future prospects, including application to
light mesons.

Cake sponsor: Gilberto


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

Thanks,
Christopher


-- 
Christopher Thomas

Jefferson Laboratory
12000 Jefferson Avenue
Suite #1
Newport News
VA 23606
USA

Tel: +1 (757) 269 7453
Email: thomasc at jlab.org