Time varying $α$ in N=8 extended Supergravity

Details Time varying $α$ in N=8 extended Supergravity Time varying $α$ in N=8 extended Supergravity

2003-02-24

arxiv.org/abs/hep-ph/0302208v3

JHEP 0305 (2003) 026

Physics

High Energy Physics

High Energy Physics - Phenomenology

5 pages,1 figures. Accepted for publication in JHEP

Scientific paper

10.1088/1126-6708/2003/05/026

There has been some evidence that the fine structure "constant" $\alpha$ may
vary with time. We point out that this variation can be described by a scalar
field in some supergravity theory in our toy model, for instance, the N=8
extended supergravity in four dimensions which can be accommodated in M-theory.

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