[Theory-seminars] Theory Seminar, Today, ***2:45PM***, Room F324/325 - Dmitrij Siemens (check unusual time and location)

[Alessandro Pilloni]

Dear all, this is a reminder for today’s seminar
Please check the unusual time and location.

Begin forwarded message:

> From: Alessandro Pilloni <pillaus at jlab.org>
> Subject: [Theory-seminars] Theory Seminar, Monday, ***2:45PM***, Room F324/325 - Dmitrij Siemens
> Date: November 17, 2016 at 4:18:37 PM EST
> To: theory-seminars at jlab.org
> 
> Theory Center Seminar
> Monday, Nov. 21, 2016
> 2:45 p.m.
> CEBAF Center, Room F324/325 
> Dmitrij Siemens (Bochum U.)
> Title:   "Pion-Nucleon Scattering in Chiral Perturbation Theory"
> 
> Abstract: 
> Elastic pion-nucleon scattering is analyzed in the framework of chiral perturbation theory
> at the full one-loop order with explicit Delta degrees of freedom.
> The analysis is performed in the small scale expansion within the heavy baryon and
> a covariant approach based on the extended on mass-shell renormalization scheme.
> The pertinent low-energy constants contributing to the pion-nucleon scattering amplitude
> are extracted from fits to experimental scattering data as well as subthreshold parameters.
> A novel approach to estimate the theoretical uncertainty based on the truncation of the chiral
> series is employed in the fitting procedure. The obtained results for the various pion-nucleon
> scattering observables are presented and discussed.
> 
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