Torsion Constraints in the Randall--Sundrum Scenario

Details Torsion Constraints in the Randall--Sundrum Scenario Torsion Constraints in the Randall--Sundrum Scenario

2002-01-14

arxiv.org/abs/hep-ph/0201125v2

Phys.Rev.D65:124008,2002

Physics

High Energy Physics

High Energy Physics - Phenomenology

typos corrected, matches the Phys. Rev. D version

Scientific paper

10.1103/PhysRevD.65.124008

Torsion appears due to fermions coupled to gravity and leads to the strongest particle physics bounds on flat extra dimensions. In this work, we consider torsion constraints in the case of a warped extra dimension with brane and bulk fermions. From current data we obtain a 3-sigma bound on the TeV--brane mass scale scale \Lambda_\pi > 2.2 (10) TeV for the AdS curvature k=1 (0.01) in (reduced) Planck units. If Dirac or light sterile neutrinos reside on the brane, the bound increases to 17 (78) TeV.

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