On non-universal Goldstino couplings to matter - INSPIRE

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On non-universal Goldstino couplings to matter

E. Dudas
(
- Ecole Polytechnique, CPHT and
- Orsay, LPT
)
,
G. von Gersdorff
(
- Ecole Polytechnique, CPHT
)
,
D.M. Ghilencea
(
- CERN
)
,
S. Lavignac
(
- Saclay, SPhT
)
,
J. Parmentier
(
- Ecole Polytechnique, CPHT and
- Saclay, SPhT
)

Jun, 2011

28 pages

Published in:

Nucl.Phys.B 855 (2012) 570-591

Published: 2012

e-Print:

1106.5792 [hep-th]

DOI:

10.1016/j.nuclphysb.2011.10.011

Report number:

CPHT-RR051-0611,
LPT-ORSAY-11-55,
SACLAY-T11-063,
CERN-PH-TH-2011-153

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Abstract: (Elsevier)

Using the constrained superfields formalism to describe the interactions of a light goldstino to matter fields in supersymmetric models, we identify generalized, higher-order holomorphic superfield constraints that project out the superpartners and capture the non-universal couplings of the goldstino to matter fields. These arise from microscopic theories in which heavy superpartners masses are of the order of the supersymmetry breaking scale ( f ) . In the decoupling limit of infinite superpartners masses, these constraints reduce to the familiar, lower-order universal constraints discussed recently, that describe the universal goldstino–matter fields couplings, suppressed by inverse powers of f . We initiate the study of the couplings of the Standard Model (SM) fields to goldstino in the constrained superfields formalism.

Note:

28 pages; one comment added

sparticle: mass
Goldstino: coupling
sparticle: heavy
supersymmetry: symmetry breaking
supersymmetry: constraint
supergravity

References(39)

Figures(0)

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