RIKEN/BNL Lunch Time Talk

"Electroweak Axions, Instantons and the Cosmological Constant"

Presented by Larry McLerran, Brookhaven National Laboratory

Thursday, May 3, 2012, 12:30 pm — Building 510 / Room 2-160

I argue that in electroweak theory, an electroweak axion has the right energy density to correspond to the dark energy. This electroweak axion is the Goldstone boson of B+L symmetry, in the absence of instantons. Instantons generate an axion mass. The resulting axion has a mass of the order the inverse size of the universe. The dark energy is associated with the axion field energy. This result assumes no new physics up to of order the Planck scale.

Hosted by: Tomomi Ishikawa

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