[Jlab-seminars] Theory Center Seminar (Time Correction)

[Mary Fox]

Theory Center Seminar
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.

-------------- next part --------------
An HTML attachment was scrubbed...
URL: https://mailman.jlab.org/pipermail/jlab-seminars/attachments/20110103/c04c57b9/attachment.html