PERIMETER INSTITUTE RECORDED SEMINAR ARCHIVE
 | Scale Without Conformal Invariance in Relativistic Quantum Field Theory Speaker(s): Benjamin Grinstein
Abstract: In 2-dim it is known that a unitary, well defined quantum field theory, if scale invariant must also be invariant under conformal transformations. Whether this is also true in dimensions higher than two has been an open question for decades. We have discovered renomalization group ... read more
Date: 10/05/2012 - 4:40 pm
Collection: Conformal Nature of the Universe
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 | PIRSA:10120022
( Flash Presentation , Windows Presentation , Windows Video File , MP3 , PDF) Which Format?
A Lee-Wick Extension of the Standard Model Speaker(s): Benjamin Grinstein
Abstract: Higher derivative extensions of the Standard Model are renormalizable but without a quadratic divergent higgs mass. Electroweak presision data constraint the scale of the higher derivatives to at least a few TeV, but then these models have no flavor problem. We skim through these and other interesti... read more
Date: 10/12/2010 - 2:30 pm
Series: Particle Physics
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 | PIRSA:08060034
( Flash Presentation , Windows Presentation , Windows Video File , MP3 , PDF) Which Format?
Unitary Representations of the Conformal Group for pedestrians Speaker(s): Benjamin Grinstein
Abstract: We comment on several points concerning unparticles which have been overlooked in the literature. One regards Mack's unitarity constraint lower bounds on CFT operator dimensions,e.g,. d>= 3 for primary, gauge invariant, vector unparticle operators. We correct the results in the literature to account... read more
Date: 02/06/2008 - 5:55 pm
Collection: PASCOS 08
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