Chemistry and Physics Faculty Articles

Document Type

Article

Publication Date

2-19-1996

Publication Title

Nuclear Physics B

ISSN

0550-3213

Volume

461

Issue/No.

1-2

First Page

50

Last Page

70

Peer Reviewed

1

Abstract

The structure of gauged R-supergravity Lagrangians is reviewed, and we consider models with a hidden sector plus light fields of the MSSM. A simple potential for the hidden sector is presented which has a global minimum with zero cosmological constant and spontaneously broken SUSY and R-symmetry. The U(1)R vector multiplet acquires a Planck scale through the Higgs mechanism, and it decouples at low energy. Due to very interesting cancellations, the U(1)RD-terms also drop out at low energy. Thus no direct effects of the gauging of R-symmetry remain in the low-energy effective Lagrangian, and this result is model independent, requiring only that R-symmetry be broken at the Planck scale and 〈D〉 = 0, where D is the auxiliary field of the U(1)R vector multiplet. The low-energy theory is fairly conventional with soft SUSY breaking terms for the MSSM fields. As a remnant of the gauging of R-symmetry, it also contains light fields, some required to cancel R-anomalies and others from the hidden sector.

Comments

©1996 Elsevier Science B.V. All rights reserved.

DOI

10.1016/0550-3213(95)00584-6

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