[Theory-seminars] Reminder: Theory Seminar TODAY

[Christopher Thomas]

Dear all,

Just a reminder that we've got the following theory seminar (Peter 
Orland) this afternoon (Monday, Dec 14th) at 1pm in *CEBAF CENTER 
AUDITORIUM*:

*****NOTE DIFFERENT ROOM TO USUAL*****

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Monday Dec 14th
1pm
*CC AUDITORIUM*

*Longitudinal Rescaling, Integrability and Confinement*

Peter Orland
(Baruch College, City University of New York)

In the limit as the number of transverse dimensions goes to zero,
Yang-Mills theory reduces to a 1+1-dimensional model, which is
asymptotically free and completely integrable. Integrability is
exploited to study a confining gauge theory in 2+1 dimensions and
a crude model of high-energy scattering in 3+1 dimensions. The
latter model arises from QCD by applying a large longitudinal
rescaling. Anomalous dimensions of this rescaling have been
calculated to one loop.

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On Wednesday we have the following Cake Seminar:

Wednesday Dec 16th
3pm
*A110*

*Chiral extrapolation of the first moments of the nucleon generalized
parton distributions*

Ping Wang
JLab

In recent years, the extension of the PDF, generalized parton
distribution (GPD) attracted a lot of interest. GPD is related to
the amplitude of deep virtual Compton scattering where the initial
and final photons have different momentum. It has a close relationship
with the form factors. By integrating the x with different power,
the GPDs can be transformed into the nucleon moments or form factors.
I will focus on the first moments of the GPDs. The first moments of
GPDs are extrapolated with the heavy baryon chiral perturbation theory.
The analysis is based on the one loop level with the finite range
regularization.


Cake Sponsor: Hiroyuki

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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