Using Gauge Coupling Unification and Proton Decay to Test Minimal Supersymmetric SU(5)

Details Using Gauge Coupling Unification and Proton Decay to Test Minimal Supersymmetric SU(5) Using Gauge Coupling Unification and Proton Decay to Test Minimal Supersymmetric SU(5)

Publishing date

1994-06-22

URL

arxiv.org/abs/hep-ph/9406366v1

Journals

Phys.Lett.B342:145-151,1995

Science

Physics

Field

High Energy Physics

SubField

High Energy Physics - Phenomenology

Additional info

10 pages (2 figures not included, available upon request), MIU-THP-94/68

Type

Scientific paper

Digital Object Identifier

10.1016/0370-2693(94)01331-6

Abstract

We derive a one-loop expression, including all thresholds, for the mass of the proton decay mediating color triplets, $M_{D^c}$, in minimal supersymmetric SU(5). The result for $M_{D^c}$ does not depend on other heavy thresholds or extra representations with SU(5) invariant masses which might be added to the minimal model. We numerically correct our result to two-loop accuracy. Choosing inputs to maximize $M_{D^c}$ and $\tau_P$, within experimental limits on the inputs and a $1~TeV$ naturalness bound, we derive a strict bound $\alpha_3>0.117$. We discuss how this bound will change as experimental limits improve. Measurements of $\alpha_3$ from deep inelastic scattering and the charmonium spectrum are below the bound $\alpha_3>0.117$ by more than $3\sigma$. We briefly review several ideas of how to resolve the discrepancy between these low values of $\alpha_3$ and the determinations of $\alpha_3$ from LEP event shapes.

Affiliated with

Also associated with

No associations

Rating

Using Gauge Coupling Unification and Proton Decay to Test Minimal Supersymmetric SU(5) 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 Using Gauge Coupling Unification and Proton Decay to Test Minimal Supersymmetric SU(5), we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Using Gauge Coupling Unification and Proton Decay to Test Minimal Supersymmetric SU(5) will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-636157