2013 Spring High Energy Particle Physics Seminar: Dr. BFL Ward

DateMarch 4, 2013
Time3:30 - 5:00 pm
LocationBaylor Sciences Building, Room A.202
Description
B. F. L. Ward

Distinguished Professor of Physics, Baylor University


An Estimate of Lambda in Resummed Quantum
Gravity in the Context of Asymptotic Safety and
Planck Scale Cosmology: Constraints on SUSY GUTS


We use the amplitude-based resummation of Feynman’s formulation of Einstein’s theory to arrive at a UV finite approach to quantum gravity. We show that we recover the UV fixed point recently claimed by the exact field-space renormalization group approach. We use our approach in the context of the attendant Planck scale cosmology formulation of Bonanno and Reuter to estimate the value of the cosmological constant as !! = 0.0024 eV !. We show that the closeness of this estimate to experiment constrains susy GUT models.



For More information, please contact: Dr. Jay Dittmann 254-710-2275

PublisherDepartment of Physics
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