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VERSION:2.0
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PRODID:UW-Physics-TWaP
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SEQUENCE:2
UID:UW-Physics-Event-5045
DTSTART:20190221T203000Z
DURATION:PT1H0M0S
DTSTAMP:20200125T082846Z
LAST-MODIFIED:20190206T173730Z
LOCATION:5280 Chamberlin Hall
SUMMARY:Gravity safe\, electroweak natural axionic solution to strong CP and SUSY mu problems\, Theory Seminar (High Energy/Cosmology)\, Howard Baer\, University of Oklahoma
DESCRIPTION:Particle physics models with Peccei-Quinn (PQ) symmetry breaking as a consequence of supersymmetry (SUSY) breaking are attractive in that
they solve the strong CP problem with a SUSY DFSZ-like axion\,
link the SUSY breaking and PQ breaking intermediate mass scales
and can resolve the SUSY mu problem with a naturalness-required
weak scale mu term whilst soft SUSY breaking terms inhabit the
multi-TeV regime as required by LHC sparticle mass limits and
the Higgs mass measurement.

On the negative ledger\, models based on global
symmetries suffer a generic gravity spoliation problem.
We present two models based on the discrete R-symmetry
Z_{24}^R-- which may emerge
from compactification of 10-d Lorentzian spacetime in string theory--
where the mu term and dangerous proton decay and R-parity
violating operators are either suppressed or forbidden
while a gravity-safe PQ symmetry emerges as an accidental approximate
global symmetry leading to a solution to the strong CP problem
and a weak-scale/natural value for the mu term.
URL:https://wp.physics.wisc.edu/twap/?id=5045
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