[Theory-seminars] Seminars next week

[Christopher Thomas]

Dear all,

Next week we have the following seminars:

* Monday Oct 26th, 1pm, L102/4: Satoshi Nakamura (EBAC, JLab):
"Dynamical Model of Coherent Pion Production in Neutrino-Nucleus Scattering"

* Wednesday Oct 28th, 3pm, *F113*: Cake Seminar: Clark Downum (Oxford):
"Nucleon-Nucleon Interactions from the Quark Model" (*NOTE CHANGE OF ROOM*)


Abstracts below:


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1pm, Monday Oct 26th
L102/4

*Dynamical Model of Coherent Pion Production in Neutrino-Nucleus Scattering*

Satoshi Nakamura (EBAC, JLab)

I report our recent work on coherent pion production in neutrino-nucleus
scattering in the energy region relevant to neutrino oscillation
experiments of current interest. Our approach is based on a combined use
of the Sato-Lee model of electroweak pion production on a nucleon and
the Delta-hole model of pion-nucleus reactions. Thus we develop a model
which describes pion-nucleus scattering and electroweak coherent pion
production in a unified manner. All the free parameters in our model are
fixed by fitting to both total and elastic differential cross sections
for pi-12C scattering. Then we demonstrate the reliability of our
approach by confronting our prediction for the coherent pion
photo-productions with data. Finally, we calculate total and
differential cross sections for neutrino-induced coherent pion
production, and some of the results are compared with the recent data
from K2K, SciBooNE and MiniBooNE.


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3pm, Wednesday Oct 28th
*****NOTE CHANGE OF ROOM*****
*F113*

*Nucleon-Nucleon Interactions from the Quark Model*

Clark Downum (Oxford University, UK)

We report on investigations of the applicability of non-relativistic
constituent quark models to the low-energy nucleon-nucleon (NN)
interaction.   The major innovations of the resulting NN potential are
the use of the 3P0 decay model and hadron wave functions to
model nucleon-nucleon-meson form-factors, and the use of a colored
spin-spin contact hyperfine repulsive core rather than the heavy meson
exchange mechanism used in the meson exchange theory of nuclear
forces.   We assess the ability and limitations of the model to
reproduce observables of the NN force.  Theoretical implications and
plans for future study are discussed.


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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