TY - GEN
T1 - Effective potentials in de sitter background and application to the MSSM
AU - Garbrecht, Bjorn
PY - 2010
Y1 - 2010
N2 - The technique for deriving one-loop effective potentials in de Sitter background is illustrated on the example of the scalar field, where the answer can be derived through a "back of the envelope" calculation. We then summarize the according results for fermion and gauge boson loops, which can be applied to the background curvature-induced lifting of flat directions of the MSSM. While through Yukawa couplings, a lifting mass term of order of the Hubble rate arises, the lifting contributions due to the gauge couplings are found to cancel at leading order in the Hubble rate.
AB - The technique for deriving one-loop effective potentials in de Sitter background is illustrated on the example of the scalar field, where the answer can be derived through a "back of the envelope" calculation. We then summarize the according results for fermion and gauge boson loops, which can be applied to the background curvature-induced lifting of flat directions of the MSSM. While through Yukawa couplings, a lifting mass term of order of the Hubble rate arises, the lifting contributions due to the gauge couplings are found to cancel at leading order in the Hubble rate.
UR - http://www.scopus.com/inward/record.url?scp=84886445179&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:84886445179
SN - 9814293237
SN - 9789814293235
T3 - Subnuclear Series - Proceedings of the International School of Subnuclear Physics
SP - 391
EP - 400
BT - Proceedings of the International School of Subnuclear Physics
T2 - 45th International School of Subnuclear Physics: Search for the "Totally Unexpected" in the LHC Era, ISSP 2007
Y2 - 29 August 2007 through 7 September 2007
ER -