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Please RSVP to: <a moz-do-not-send="true"
class="moz-txt-link-abbreviated" href="mailto:patient@jlab.org">patient@jlab.org</a>
by COB on February 13, 2012. <br>
<blockquote cite="mid:4F352D43.8080609@jlab.org" type="cite"> <br>
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<p class="MsoPlainText" style="text-align: center;"
align="center"><span style="font-size: 12pt;">Wednesday,
February 15, 2012<br>
<b><span style="color: red;">***CC F113***</span></b><br>
<span style="color: black;">12:00-1:00pm</span></span><span
style=""><br>
<br>
</span><b style=""><span style="font-size: 18pt; font-family:
"Times","serif";">TMDs for the
Simple-minded</span></b><b style=""><span
style="font-size: 14pt;"></span></b></p>
<p class="MsoPlainText" style="margin: 0in 9pt 0.0001pt;
text-align: center;" align="center"><span style="font-family:
"Times New Roman","serif";"><br>
</span><b><span style="font-size: 12pt;">Sebastian Kuhn</span></b><b><span
style=""> </span></b><span style=""><br>
</span><span style="font-size: 12pt;">Old Dominion University</span></p>
<p class="MsoNormal" style="margin-bottom: 0.0001pt; text-align:
center; line-height: normal;" align="center"> </p>
<p class="MsoNormal" style="margin-bottom: 0.0001pt; text-align:
center; line-height: normal;" align="center"> </p>
<p class="MsoPlainText" style="text-align: justify;"><span
style=""><br>
</span><b style=""><span style="font-size: 12pt; font-family:
"Times New Roman","serif";">Abstract</span></b><b
style=""><span style="">:</span></b><span style=""><br>
</span><span style="font-size: 12pt; font-family:
"Times","serif";">Recently, the topic of
transverse-momentum dependent (TMD) parton distribution
functions (PDFs) has created a lot of interest and
excitement - with a large program planned for the 12 GeV era
at Jefferson Lab. However, for those of us who "grew up"
with the comfortable, simple world of just two nucleon
structure functions (F1 and g1, augmented by higher twist
corrections like R and A2), the plethora of new quantities
to be measured may be bewildering. Why are there exactly
EIGHT of these TMDs at leading twist? (Turns out there are
really 11 up to 2nd order in p_T). What can one possibly
learn from them? And how are they accessible experimentally?
Where do all these complicated sin(phi) (and cos(3phi)
and...) terms come from? </span></p>
<p class="MsoPlainText" style="text-align: justify;"><span
style="font-size: 12pt; font-family:
"Times","serif";"><br>
While the theory behind structure functions in general and
TMDs in particular is quite involved (and rapidly evolving),
even a simple-minded experimentalist can discern some order
in this chaos and, perhaps, develop a "naive intuition" for
what this is all about. The speaker professes to belong in
this category and will try to pass on some of his primitive
understanding. While a little knowledge is always dangerous,
once you feel a little more comfortable with this emerging
field, it may be less daunting to get a deeper
understanding. Needless to say, this talk is NOT for experts
(although I'm afraid they'll come anyway and make me look
foolish...)</span><span style="font-size: 12pt; font-family:
"Times","serif";"></span></p>
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