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SUMMARY:The Curious Case of Life on the Lattice\, Dorota Grabowska (CERN)
DTSTART;VALUE=DATE-TIME:20201020T193000Z
DTEND;VALUE=DATE-TIME:20201020T203000Z
DTSTAMP;VALUE=DATE-TIME:20220121T143114Z
UID:indico-event-9216@indico.bnl.gov
DESCRIPTION:Leona Woods Lecture. (Will be held remotely.)\n\nAbstract:
\n\nAfter decades of both theoretical and experimental efforts\, the Stand
ard Model of Particle Physics is complete. While this represents an incred
ible achievement\, we also know this is not the full story. The gaps in ou
r understanding include the nature of dark matter and neutrino masses\, as
well as potential flavour anomalies and the lack of constraints for non-p
erturbative observables. One of the tools that physicists use to fill in s
ome of these gaps is Lattice Field Theory. By discretising spacetime\, not
only is the UV behaviour of the theory rendered finite\, but it also beco
mes well suited to numerical methods. For example\, lattice methods are wh
at allows physicists to carry out first principle explorations of the low
energy spectrum of QCD. However\, working at finite lattice spacing and in
finite volumes carries a cost — things that we take for granted in the
continuum may no longer hold. In some cases\, the result is a theoretical
issue\, where we are simply not sure how to write down the desired theory
on a discretised spacetime. Other times\, what results are numerical limit
ations\, where finite resources require the development of clever algorith
ms and new methodologies. In this talk\, I will focus on two questions —
how to implement chiral gauge theories on the lattice and how to extract
scattering information from finite volume measurements — in order to dem
onstrate that while life on the lattice is not always simple\, the payoff
is very much worth it.\n\n \n\nhttps://indico.bnl.gov/event/9216/
LOCATION:Online only https://bluejeans.com/308299597
URL:https://indico.bnl.gov/event/9216/
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