Split symmetries

Buchmuller, Wilfried; Dierigl, Markus; Ruehle, Fabian; Schweizer, Julian

doi:10.1016/j.physletb.2015.09.069

Split symmetries

Jul 24, 2015

5 pages

Published in:

Phys.Lett.B 750 (2015) 615-619

Published: Oct 1, 2015

e-Print:

1507.06819 [hep-th]

DOI:

10.1016/j.physletb.2015.09.069

Report number:

DESY-15-095

View in:

ADS Abstract Service

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Abstract: (Elsevier)

We consider six-dimensional supergravity with gauge group SO(10)×U(1)A , compactified on the orbifold T2/Z2 . Three quark–lepton generations arise as zero modes of a bulk 16 -plet due to magnetic flux of the anomalous U(1)A . Boundary conditions at the four fixed points break SO(10) to subgroups whose intersection is the Standard Model gauge group. The gauge and Higgs sector consist of “split” SO(10) multiplets. As a consequence of the U(1)A flux, squarks and sleptons are much heavier than gauge bosons, Higgs bosons, gauginos and higgsinos. We thus obtain a picture similar to “split supersymmetry”. The flavor structure of the quark and lepton mass matrices is determined by the symmetry breaking at the orbifold fixed points.

Note:

14 pages, 1 figure, clarifying paragraph added, to appear in PLB

fixed point: orbifold
supersymmetry: split
flux: magnetic
symmetry breaking
compactification
supergravity
family: 3
dimension: 6
SO(10) x U(1)

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