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Eklund Lecture: In Search of Saturation

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David Zaslavsky, Pennsylvania State University
When
20 March 2014 from 4:00 PM to 5:00 PM
Where
117 Osmond Laboratory
Contact Name
Contact Phone
814-865-2015
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For half a century, physicists have been probing the structure of
protons using particle accelerators with increasingly higher energies.
As the collision energy has grown by orders of magnitude, the protons
behave like increasingly dense collections of quarks and gluons, or
partons. But it's been clear for some time that this growth in the
effective parton density is not sustainable. At some point a new
physical phenomenon, called saturation, has to kick in to slow that
growth. Now, the latest generation of colliders - the LHC and RHIC - are
just on the verge of exposing the first experimental evidence of
saturation. In my talk, after giving a quick primer on proton structure,
I'll describe the theoretical motivation for saturation, show how we
search for its experimental signature, and present the results of my research on one of the most accurate tests of saturation physics to date.

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