Gravity-mediated SUSY breaking, $R$ symmetry, and hyperbolic Kähler geometry

Pallis, Constantinos

doi:10.1103/PhysRevD.100.055013

Gravity-mediated SUSY breaking, $R$ symmetry, and hyperbolic Kähler geometry

Constantinos Pallis
(
- King Saud U.
)

Dec 26, 2018

12 pages

Published in:

Phys.Rev.D 100 (2019) 5, 055013

Published: Sep 12, 2019

e-Print:

1812.10284 [hep-ph]

DOI:

10.1103/PhysRevD.100.055013

View in:

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Abstract: (APS)

A novel realization of the gravity-mediated supersymmetry breaking is presented, taking into account a continuous global R symmetry. Consistently with it, we employ a linear superpotential for the hidden-sector superfield and a Kähler potential parametrizing the SU(1,1)/U(1) Kähler manifold with constant curvature -1/2. The classical vacuum energy vanishes without unnatural fine tuning and nonvanishing soft supersymmetry-breaking parameters, of the order of the gravitino mass, arise. A solution to the μ problem of minimal supersymmetric Standard Model may be also achieved by conveniently applying the Giudice-Masiero mechanism. The potentially troublesome R axion may acquire acceptably large mass by explicitly breaking the R symmetry in the Kähler potential through a quartic term which does not affect, though, the achievements above.

Note:

Updated to match the published version

12.60.Jv
04.65.+e
Beyond the standard model
new physics
supersymmetry: symmetry breaking
mediation: gravitation
supergravity
R symmetry
mu-problem
SU(1,1)/U(1)

References(52)

Figures(0)

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