Time varying α inN= 8 extended supergravity
نویسندگان
چکیده
منابع مشابه
ar X iv : h ep - p h / 03 02 20 8 v 3 1 9 M ay 2 00 3 Time varying α in N = 8 extended Supergravity
There has been some evidence that the fine structure “constant” α 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. Email address: [email protected],[email protected] There exists a lot of analysis about the obser...
متن کاملar X iv : h ep - p h / 03 02 20 8 v 2 1 4 M ay 2 00 3 Time varying α in N = 8 extended Supergravity
There has been some evidence that the fine structure “constant” α 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. Email address: [email protected],[email protected] There exists a lot of analysis about the obser...
متن کاملar X iv : h ep - p h / 03 02 20 8 v 1 2 4 Fe b 20 03 Time varying α in N = 8 extended Supergravity
There has been some evidence that the fine structure “constant” α may vary with time. We point out that this variation can be described by a scalar field in some supergravity theory, for instance, the N = 8 extended supergravity in four dimensions which can be accommodated in M-theory. Email address: [email protected],[email protected] There exists a lot of analysis about the observational constrai...
متن کاملTime - Varying α and Particle Physics
We argue that models in which an observable variation of the fine structure constant is explained by motion of a cosmic scalar field, are not stable under renormalization, and require massive fine tuning that cannot be explained by any known mechanism.
متن کاملHigher spin N = 8 supergravity
The product of two N = 8 supersingletons yields an infinite tower of massless states of higher spin in four dimensional anti de Sitter space. All the states with spin s ≥ 1 correspond to generators of Vasiliev’s super higher spin algebra shsE(8|4) which contains the D = 4, N = 8 anti de Sitter superalgebra OSp(8|4). Gauging the higher spin algebra and introducing a matter multiplet in a quasi-a...
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ژورنال
عنوان ژورنال: Journal of High Energy Physics
سال: 2003
ISSN: 1029-8479
DOI: 10.1088/1126-6708/2003/05/026