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VERSION:2.0
CALSCALE:GREGORIAN
PRODID:UW-Madison-Physics-Events
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SEQUENCE:4
UID:UW-Physics-Event-8821
DTSTART:20241122T213000Z
DTEND:20241122T223000Z
DTSTAMP:20260415T020119Z
LAST-MODIFIED:20241106T021336Z
LOCATION:Chamberlin 2241
SUMMARY:The DNA of Particle Scattering\, Physics Department Colloquium
 \, Lance Dixon\, SLAC
DESCRIPTION:At the Large Hadron Collider\, the copious scattering of q
 uarks and gluons in quantum chromodynamics (QCD) produces Higgs bosons
  as well as many backgrounds to searches for new physics. Better theor
 etical precision in computing Standard Model cross sections is needed 
 to match the improved experimental precision expected with the high-lu
 minosity LHC upgrade.  Scattering of quarks and gluons in QCD can be e
 valuated in perturbation theory and leads to highly intricate\, multiv
 ariate mathematical functions. To gain further insight into the struct
 ure of these functions\, one can study a simpler cousin of QCD called 
 planar N=4 SYM. The structural features of these intricate results can
  be decoded in a way that is analogous to sequencing DNA. Each derivat
 ive reads off a letter\, like the A\,T\,G\,C letters of the DNA code. 
 Understanding the alphabet\, and then reading the code\, exposes the p
 hysics and mathematics of quantum scattering. Bizarre new symmetries h
 ave been unveiled by humans staring at this theoretical data. For exam
 ple\, two scattering amplitudes are secretly related to each other by 
 reading the code backwards. The next hidden symmetries may be revealed
  by machine learning models "staring at" the data.
URL:https://www.physics.wisc.edu/events/?id=8821
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