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X-WR-CALNAME:Centre for Mathematical Sciences
X-ORIGINAL-URL:http://math-sciences.org
X-WR-CALDESC:Events for Centre for Mathematical Sciences
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TZOFFSETFROM:+0000
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DTSTART:20150101T000000
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DTSTART;TZID=UTC:20150902T150000
DTEND;TZID=UTC:20150902T160000
DTSTAMP:20220527T221702
CREATED:20151210T234325Z
LAST-MODIFIED:20151211T163738Z
UID:383-1441206000-1441209600@math-sciences.org
SUMMARY:Christopher Thomas (DAMTP)
DESCRIPTION:Excited hadron spectroscopy and scattering in lattice QCD.\nThe majority of hadrons are unstable; they decay strongly to two or more lighter hadrons and appear as resonances\, complex singularities in hadron-hadron scattering amplitudes. Moreover\, over the last decade experiments have observed a number of puzzling states near or above thresholds. Lattice QCD provides a method to perform first-principles calculations of these phenomena that can be compared against experiment\, but studying resonances and scattering is challenging. I summarise how we have recently made some significant advances in this area by using a range of techniques and discuss a couple of applications: the rho resonance in elastic pi pi scattering and coupled-channel strangeness = 1 scattering (pi K\, eta K) where we found a variety of interesting phenomena (narrow and broad resonances\, a bound state and a ‘virtual bound state’). I comment on future prospects and further applications.
URL:http://math-sciences.org/event/christopher-thomas-damtp/
LOCATION:Room 205\, 2-5\, Kirkby Place\, Plymouth\, PL4 6DT\, United Kingdom
CATEGORIES:Seminars,Theoretical Physics
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