[Theory-seminars] theory seminar tomorrow Jan 5, 10 am, L104

[Bernhard Musch]

Dear all,

We have a Theory Center Seminar tomorrow :

Wed., Jan. 5, 2011
CEBAF Center, Room L104
10:00 a.m.


*QCD Structure of Hard Processes in Nuclear Interactions*

Carlos Granados
Florida International University

Hard photodisintegration of a nucleon nucleon system (NN) is studied
within the framework of the hard rescattering model (HRM). Hard NN
breakup is described through the HRM by explicitly invoking QCD degrees
of freedom; the incoming photon is absorbed by one nucleon's valence
quark that then undergoes a hard rescattering reaction with a valence
quark from the second nucleon producing two nucleons emerging at large
transverse momentum. Parameter free cross sections for pp and pn break
up channels are then calculated through the input of experimental cross
sections on pp and pn elastic scattering. The computed cross section for 
pp breakup (particularly its predicted energy dependency) is in good 
agreement with recent experimental data. Predictions on spectator
momentum distributions and helicity transfer are also presented.
Motivation for the study of Delta-Isobar production in hard
photodisintegration of the deuteron and further applications are also
discussed.


A complete list of upcoming theory seminars and talks from previous
seminars are available from:
http://www.jlab.org/~prokudin/seminars/


Alexei, Berni and Satoshi
JLab Theory Seminar Organizers

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