A New Mechanism to Solve the Small Scale Problem of Local Supersymmetry

Details A New Mechanism to Solve the Small Scale Problem of Local Supersymmetry A New Mechanism to Solve the Small Scale Problem of Local Supersymmetry

1996-07-08

arxiv.org/abs/hep-ph/9607261v1

Phys.Lett. B389 (1996) 533-537

Physics

High Energy Physics

High Energy Physics - Phenomenology

8 pages, LaTex, no figures

Scientific paper

10.1016/S0370-2693(96)01296-8

We extend the Standard Model gauge group by a a gauged $U(1)_R$ R-Symmetry or a gauged $U(1)'$. The requirement of cancellation of anomalies is very constraining but can be achieved by adding three or four hidden-sector fields which are Standrad Model singlets. The $U(1)_R$ or $U(1)'$ quantum numbers of these singlets are usually large producing a non-renormalisable superpotential with a high power in the singelt fields. We have minimized the supergravity scalar potential and have found solutions where the vacuum expectation values of all hidden-sector singlet fields are less than the Planck mass $<{z_m}>=O(M_{Pl}/10)$. This produces the small supersymmetry scale of order the weak scale from only the Planck scale. The mu problem is simultaneously solved in this manner.

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