[Theory-seminars] Theory Seminar POSTPONED TO TUESDAY

[Christopher Thomas]

Dear all,

Because the lab is closed today (Monday, Feb 1st), the theory seminar
scheduled for today is postponed to 1PM on TUESDAY.  Room is TBC.

Thanks,
Christopher


-------- Original Message  --------
Subject: Theory Seminar on Monday
From: Christopher Thomas <thomasc at jlab.org>
To: theory-seminars at jlab.org
Date: 29 January 2010 13:43:12

> Dear all,
> 
> We have a theory seminar on Monday (February 1st) at 1pm in L104: Chieh
> Jen Yang (Ohio) will be talking an "Subtractive renormalization of
> chiral effective theory NN potentials up to next-to-next-to leading
> order" --  more details below.
> 
> This is in addition to the seminars on Wednesday (Bingwei Long, 3pm,
> L104) and Friday (Alvaro Calle Cordon, 11am, A110).
> 
> 
> ----------
> 
> Monday February 1st
> 1pm
> L104
> 
> *Subtractive renormalization of chiral effective theory NN potentials up
> to next-to-next-to leading order*
> 
> Chieh Jen Yang
> (Ohio University)
> 
> We have developed a subtractive renormalization method with which we can
> evaluate NN scattering phase shifts produced by the NN potential
> obtained at leading, next-to-leading, and next-to-next-to-leading order
> (NNLO) in the chiral effective theory. In this method the low-energy
> constants associated with short-distance NN physics are eliminated from
> the Lippmann-Schwinger equation (LSE) for the NN t-matrix, in favor of
> physical observables. This allows to straightforwardly compute
> scattering phase shifts for ultra-violet cutoffs of at least 10 GeV. We
> then perform detailed analyses of several renormalization issues and
> determine the maximum cutoff at which the use of an effective field NN
> potential in the LSE makes sense.
> 
> ----------
> 
> 
> 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