Spin dependent masses and Sim(2) symmetry

Details Spin dependent masses and Sim(2) symmetry Spin dependent masses and Sim(2) symmetry

2006-11-06

arxiv.org/abs/hep-ph/0611049v1

Phys.Lett.B649:186-190,2007

Physics

High Energy Physics

High Energy Physics - Phenomenology

6 pages

Scientific paper

10.1016/j.physletb.2007.03.055

Recently, Cohen and Glashow pointed out that all known experimental tests of relativistic kinematics are consistent with invariance of physics under the four-parameter subgroup Sim(2) of the Lorentz group. The massive one-particle irreducible representations of ISim(2), that is Sim(2) times spacetime translations, are all one-dimensional, labeled by spin along a preferred axis. Consequently particle theories based on this symmetry can accomodate lepton number conserving masses for left-handed neutrinos without the need to introduce sterile states. The same property of massive particle representations, however, also leads to the possibility that particle masses may be split within the diffferent spins of a representation of the ordinary Poincare group. In this article we investigate the low-energy structure of theories with spin dependent masses and comment on the bounds on such effects.

Affiliated with

Also associated with

No associations

Rating

Spin dependent masses and Sim(2) symmetry 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 Spin dependent masses and Sim(2) symmetry, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Spin dependent masses and Sim(2) symmetry will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-618070