TY - JOUR
T1 - RGE behavior of SUSY with a U(2)3 symmetry
AU - Blankenburg, Gianluca
AU - Jones-Pérez, Joel
PY - 2013
Y1 - 2013
N2 - The first LHC results seem to disfavor, from the point of view of naturalness, any constrained MSSM realization with universal conditions at the SUSY-breaking scale. A more motivated scenario is given by split-family SUSY, in which the first two generations of squarks are heavy, compatible with a U(2)3 flavor symmetry. We consider this flavor symmetry to be broken at a very high scale and study the consequences at low energies through its RGE evolution. Initial conditions compatible with a split scenario are found, and the preservation of correlations from minimal U(2)3 breaking are checked. The various chiral operators in ΔF=2 processes are analyzed, and we show that, due to LHC gluino bounds, the (LL)(RR) operators cannot always be neglected. Finally, we also study a possible extension of the U(2)3 model compatible with the lepton sector.
AB - The first LHC results seem to disfavor, from the point of view of naturalness, any constrained MSSM realization with universal conditions at the SUSY-breaking scale. A more motivated scenario is given by split-family SUSY, in which the first two generations of squarks are heavy, compatible with a U(2)3 flavor symmetry. We consider this flavor symmetry to be broken at a very high scale and study the consequences at low energies through its RGE evolution. Initial conditions compatible with a split scenario are found, and the preservation of correlations from minimal U(2)3 breaking are checked. The various chiral operators in ΔF=2 processes are analyzed, and we show that, due to LHC gluino bounds, the (LL)(RR) operators cannot always be neglected. Finally, we also study a possible extension of the U(2)3 model compatible with the lepton sector.
UR - http://www.scopus.com/inward/record.url?scp=84873330743&partnerID=8YFLogxK
U2 - 10.1140/epjc/s10052-013-2289-x
DO - 10.1140/epjc/s10052-013-2289-x
M3 - Article
AN - SCOPUS:84873330743
SN - 1434-6044
VL - 73
SP - 1
EP - 15
JO - European Physical Journal C
JF - European Physical Journal C
IS - 2
M1 - 2289
ER -