Mass Generation for an Ultralight Axion

Details Mass Generation for an Ultralight Axion Mass Generation for an Ultralight Axion

1999-11-12

arxiv.org/abs/hep-ph/9911324v1

Phys.Rev.D61:105007,2000

Physics

High Energy Physics

High Energy Physics - Phenomenology

11 pages, Latex

Scientific paper

10.1103/PhysRevD.61.105007

If a global chiral symmetry is explicitly broken by anomalies in nonabelian gauge theories, a pseudo Nambu-Goldstone boson (axion) associated with a spontaneous breakdown of such a global symmetry acquires a mass through nonperturbative instanton effects. We calculate the axion mass assuming a supersymmetric SU(2) gauge theory and show that the axion obtains an extremely small mass when the SU(2) gauge symmetry is broken down at very high energy, say at the Planck scale. We identify the axion with a hypothetical ultralight boson field proposed to account for a small but nonzero cosmological constant suggested from recent cosmological observations.

Affiliated with

Also associated with

No associations

Rating

Mass Generation for an Ultralight Axion does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Mass Generation for an Ultralight Axion, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Mass Generation for an Ultralight Axion will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-196154