[Jlab-seminars] Theory Center Seminar

[Mary Fox]

**Theory Center Seminar
Wed., Feb. 6, 2013
11:00 a.m.-12:15 p.m.
(coffee at 10:45 a.m.)
CEBAF Center, Room L102*

*
*Ted Rogers
Stony Brook University ***

*Exploring Hadron Structure with Transverse Momentum
Dependent (TMD) Factorization *

Perturbative QCD will play an essential role in current and planned 
studies of the quark
and gluon structure of hadrons. However, for inclusive processes that 
are sensitive to
intrinsic bound state transverse momentum, the usual collinear 
factorization approach
must be replaced by a transverse momentum dependent (TMD) factorization 
formalism.
In order to extract information about hadron structure from experimental 
data, it will be
crucial to develop implementations of TMD-factorization analogous to 
those that already
exist for collinear factorization. In my talk, I will review recent 
theoretical developments in
TMD-factorization and discuss the complementary goals of obtaining 
knowledge about
hadron structure and of experimentally testing small-coupling 
perturbative QCD methods.
Next, I will describe my current project of combining large and diverse 
data sets, from
experiments for a wide variety of different processes, into fits that 
constrain the non-
perturbative input needed for implementations of TMD-factorization. The 
methodology
permits universal functions to be isolated and identified in a way that 
is consistent with
a complete MD-factorization treatment. I will end by presenting an 
overview of recent work
I have done on the identification of novel phenomenological consequences 
of the breakdown
  in TMD-factorization expected for certain classes of processes.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: https://mailman.jlab.org/pipermail/jlab-seminars/attachments/20130206/1b1f5b51/attachment.html