ISNAP LOGO ISNAP

Academics


Lectures

Nuclear
Seminars

Archaeometry Seminars

Research Presentations

Outreach

PAN @ ND


kn


Nuclear Seminars 2015 Spring


  Title: Electromagnetic processes in few-nucleon systems with the Chiral Effective Field Theory
  Speaker: Dr. Dagmara Rozpedzik
  Institute: Jagiellonian University, Krakow, Poland
  Date: Monday, May 18, 2015
  Time: 4:00 - 5:00 pm EST
  Place: Nieuwland Science Hall, Room 124

  Abstract:

Chiral Effective Field Theory provides a systematic and model-independent framework for studying hadronicprocesses in accordance with the spontaneously broken approximate chiral symmetry of the QCD. This approach isa powerful tool for the derivation of the nuclear forces and current operators. Chiral nucleon-nucleon potentialshave been known for a long time up to the fourth order. However, the potential regularization used within thisframework in many cases leads to a large uncertainty in the predictions.
A new approach to the regularization of the chiral nucleon-nucleon potentials derived in the chiral effective fieldtheory up to fifth order has been proposed recently. The new potentials do not require the additional spectralfunction regularization to cut off the short-range components of the two-pion exchange and make use of the low-energy constants determined from pion-nucleon scattering.
In this talk, a novel procedure for estimating the theoretical uncertainty from the truncation of the chiralexpansion that replaces previous reliance on cutoff variation will be introduced. The results for low energyelectromagnetic reactions obtained with the old and novel approaches to the regularization of the potentials willbe presented. The differential cross section and many polarization observables will be shown. The calculationswere performed for the selected chiral orders (up to fifth) and for all observables the procedure for estimating thetheoretical uncertainties was applied. The results will be compared with those based on the AV18 potential withthe corresponding meson exchange currents.


Topic

Date

Speaker

Investigation of transitional rare earth
nuclei using light ion reactions: Nuclear Structure and Surrogates
January 19 Prof. Cornelius Beausang
University of Richmond
Stellar Neutron Sources
and s-Process in Massive Stars
January 26 Rashi Talwar
University of Notre Dame
Low energy nuclear physics research at LLNL February 3 Tuesday Dr. Jason Burke
Lawrence Livermore National Lab
Measurement of the plasma astrophysical
S factor for the 3He(d, p)4He reaction in exploding molecular clusters
February 9 Dr. Marina Barbui
Texas A&M University
Inelastic Neutron Scattering Studies Relevant to Neutrinoless Double-Beta Decay February 16 Dr. Benjamin Crider
NSCL/MSU
Study of fission dynamics and nuclear viscosity using particle emission as a probe February 23 Dr. Yogesh Gupta
University of Notre Dame
Proton-capture reactions in thermonuclear supernovae and the p process February 26 Thursday 2pm Dr. Kerstin Sonnabend
Goethe University Frankfurt, Germany
Beta decay of deformed nuclei with the
proton-neutron finite amplitude method
March 2 Thomas Shafer
University of North Carolina
Spring Break March 9
Jet Modification and the Question of Quark Gluon Plasma in Small Collision Systems March 16 Prof. Justin Frantz
Ohio University
Optically Probing Nuclei Trapped in Cryogenic Solids: Opportunities for Nuclear Physics March 30 Prof. Jaideep Singh
NSCL/MSU
Easter Break April 6
The TITAN facility at TRIUMF: precision experiments with ion traps April 13 Dr. Ania Kwiatkowski
TRIUMF, Canada
Covariant density functional theory: the journey across three-dimensional nuclear landscape April 20 Prof. Anatoli Afanasjev
Mississippi State University
The photonuclear cross section of Boron-10 from the No Core Shell Model April 27 Dr. Michael Kruse
Lawrence Livermore National Lab
Shell model nuclear level densities and applications in nuclear astrophysics May 4 Prof. Mihai Horoi
Central Michigan University
Experimental measurement of 16O+12C
fusion at stellar energies
May 11 Xiao Fang
University of Notre Dame
Electromagnetic processes in few-nucleon systems with the Chiral Effective Field Theory May 18 Dr. Dagmara Rozpedzik
Jagiellonian University, Krakow, Poland


Site Map | Search | Contact Us | Department of Physics | University of Notre Dame