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SUMMARY:Zohar Komargodski
DTSTART;VALUE=DATE-TIME:20200805T140000Z
DTEND;VALUE=DATE-TIME:20200805T150000Z
DTSTAMP;VALUE=DATE-TIME:20200921T051233Z
UID:CERNTheoryColl/1
DESCRIPTION:Title: Generalized Symmetries\, Confinement\, and Naturalness\
nby Zohar Komargodski as part of CERN Theory Colloquiums\n\n\nAbstract\nWe
explore various generalizations of the notion of symmetry and Noetherâ€™s
theorem. We show how some new results about phases of gauge theories can
be derived from thinking about symmetries more carefully and abstractly. W
e provide some examples in 2\,3\, and 4 dimensions. \nWe also make some co
mments on the notion of naturalness and show how in some two-dimensional t
heories it is violated.\n\nZoom connection info:\n\nhttps://cern.zoom.us/j
/99878164685?pwd=VkNWZ3phQ1ZtTkFHSkh4Z3Npd3NmZz09\n\nMeeting ID: 998 7816
4685\n\nPassword: 794683\n
END:VEVENT
BEGIN:VEVENT
SUMMARY:Sergei Dubovsky
DTSTART;VALUE=DATE-TIME:20200812T120000Z
DTEND;VALUE=DATE-TIME:20200812T130000Z
DTSTAMP;VALUE=DATE-TIME:20200921T051233Z
UID:CERNTheoryColl/2
DESCRIPTION:Title: Integrability from confinement\nby Sergei Dubovsky as p
art of CERN Theory Colloquiums\n\n\nAbstract\nIntegrable models have promi
nently emerged in the past studies of perturbative QCD. I will argue that
(approximate) integrability\nis a natural consequence of confinement and a
symptotic freedom. I will illustrate this reasoning by two examples. First
\, I will show\nhow it leads to the ansatz for glueball quantum numbers in
(2+1)-dimensional Yang-Mills theory. Recent lattice data\nconfirmed many
predictions of this ansatz. Second\, I will show how this logic allowed us
to lead to identify a remarkably simple and novel integrable relativistic
N-body system\, which describes the high energy worldsheet dynamics in 2-
dimensional adjoint QCD.\n
END:VEVENT
BEGIN:VEVENT
SUMMARY:Vera Guelpers
DTSTART;VALUE=DATE-TIME:20200902T120000Z
DTEND;VALUE=DATE-TIME:20200902T130000Z
DTSTAMP;VALUE=DATE-TIME:20200921T051233Z
UID:CERNTheoryColl/3
DESCRIPTION:Title: Lattice calculations for high-precision tests of the St
andard Model of Particle Physics\nby Vera Guelpers as part of CERN Theory
Colloquiums\n\n\nAbstract\nThe LHC has not yet found any significant devia
tion from the Standard Model at large energies and thus\, indirect high-pr
ecision searches for signatures of physics beyond the Standard Model at lo
w energies become more and more important. For any quantity involving the
strong nuclear force\, the only known approach for an ab-initio treatment
at low energies is Lattice QCD. In this talk I will give some examples for
quantities that can be used to test the Standard Model and will mainly fo
cus on the inclusion of electromagnetic and strong isospin breaking correc
tions\, which are required to further increase the precision of such latti
ce calculations.\n\nZoom connection info:\nhttps://cern.zoom.us/j/97792556
765?pwd=TVRXTkpQKytibGN4RkxKYzJKUHhWZz09\nMeeting ID: 977 9255 6765\nPassw
ord: 131506\n
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