Spinor gravity

Hebecker, Arthur; Wetterich, C.

doi:10.1016/j.physletb.2003.09.010

Spinor gravity

Arthur Hebecker
(
- DESY
)
,
C. Wetterich
(
- Heidelberg U.
)

Jul, 2003

7 pages

Published in:

Phys.Lett.B 574 (2003) 269-275

Published: Nov 13, 2003

e-Print:

hep-th/0307109 [hep-th]

DOI:

10.1016/j.physletb.2003.09.010

Report number:

DESY-03-090,
HD-THEP-03-31

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Abstract:

A unified description of all interactions could be based on a higher-dimensional theory involving only spinor fields. The metric arises as a composite object and the gravitational field equations contain torsion-corrections as compared to Einstein gravity. Lorentz symmetry in spinor space is only global, implying new goldstone-boson-like gravitational particles beyond the graviton. However, the Schwarzschild and Friedman solutions are unaffected at one loop order. Our generalized gravity seems compatible with all present observations.

Note:

6 pages, LaTeX, v3: extended discussion and new references Report-no: DESY-03-090, HD-THEP-03-31

12.10.-g
04.20.Cv
11.10.Kk
gravitation: spinor
space-time: higher-dimensional
boson: composite
effective action
Goldstone particle
unified field theory

References(21)

Figures(0)

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