6533b7cefe1ef96bd125717a
RESEARCH PRODUCT
Spontaneous proton decay and the origin of Peccei-Quinn symmetry
Rahul SrivastavaMario Reigsubject
PhysicsNuclear and High Energy PhysicsParticle physics010308 nuclear & particles physicsProton decaySpontaneous symmetry breakingPhysics beyond the Standard ModelHigh Energy Physics::PhenomenologyFOS: Physical sciences01 natural scienceslcsh:QC1-999Symmetry (physics)Standard ModelHigh Energy Physics - PhenomenologyHigh Energy Physics - Phenomenology (hep-ph)0103 physical sciencesStrong CP problem010306 general physicsAxionlcsh:PhysicsMajorondescription
We propose a new interpretation of Peccei-Quinn symmetry within the Standard Model, identifying it with the axial $B + L$ symmetry i.e. $U(1)_{PQ} \equiv U(1)_{\gamma_5(B+L)}$. This new interpretation retains all the attractive features of Peccei-Quinn solution to strong CP problem but in addition also leads to several other new and interesting consequences. Owing to the identification $U(1)_{PQ} \equiv U(1)_{\gamma_5(B+L)}$ the axion also behaves like Majoron inducing small seesaw masses for neutrinos after spontaneous symmetry breaking. Another novel feature of this identification is the phenomenon of spontaneous (and also chiral) proton decay with its decay rate associated with the axion decay constant. Low energy processes which can be used to test this interpretation are pointed out.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2019-03-01 |