scholarly journals Aether SUSY breaking: can aether be alternative to F-term SUSY breaking?

2021 ◽  
Vol 2021 (8) ◽  
Author(s):  
Yusuke Yamada
Keyword(s):  
Fluid Model ◽  
Realistic Model ◽  
Lorentz Symmetry ◽  
Susy Breaking ◽  
Accelerated Expansion ◽  
Condensation Model ◽  
Matter Sector

Abstract We investigate supersymmetry (SUSY) breaking scenarios where both SUSY and Lorentz symmetry are broken spontaneously. For concreteness, we propose models in which scalar fluid or vector condensation breaks Lorentz symmetry and accordingly SUSY. Then, we examine whether such scenarios are viable for realistic model buildings. We find, however, that the scalar fluid model suffers from several issues. Then, we extend it to a vector condensation model, which avoids the issues in the scalar fluid case. We show that accelerated expansion and soft SUSY breaking in matter sector can be achieved. In our simple setup, the soft SUSY breaking is constrained to be less than $$ \mathcal{O}(100)\mathrm{TeV} $$ O 100 TeV from the constraints on modification of gravity.

scholarly journals Spacetime and dark matter from spontaneous breaking of Lorentz symmetry

2018 ◽  
Vol 35 (23) ◽  
pp. 235003 ◽  
Author(s):  
Tom Złośnik ◽  
Federico Urban ◽  
Luca Marzola ◽  
Tomi Koivisto
Keyword(s):  
Dark Matter ◽  
Lorentz Symmetry ◽  
Spontaneous Breaking
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