The breaking of the Equivalence Principle on theories with alpha variable

LIC. LUCILA KRAISELBURD , DR. HÉCTOR VUCETICH

Hotel del Lago, La Falda, Córdoba

Congreso; Grav 07; 2007

Grupo de Relatividad y Gravitación, FaMAF - Universidad Nacional de Córdoba

The standard model (SM) of fundamental interactions together with general relativity (GR) provides a consistent description of low-energy phenomena. It is possible to have results in good agreement with experiment by using a set of parameters called fundamental constants, which are reference-frame invariant. However, since 1937 when Dirac introduced his large-number hypotesis (LNH), theorical and experimental scientists have been studying the variations of fundamental constants, developing theories and methods to find restrictions to these possible changes. Some of them are: the comparison of atomic clocks, geophysics methods[3], quasars analysis, etc. Unifying schemes such as Kaluza-Klein, GUT and superstring theories predict space-time and simultaneous constants variations. This idea plays an important role in many science fields such as:Astronomy and cosmology,where the red shifts measures are obteined from the ÄpastÄ, so theview of the Universe is going to be di®erent. Some other modifications appear too, orbits, radius, inertia´s moments, etc.Physics, the variations could give an explanation to the dynamics of the high energy and extra-dimensions theories. It is a good way to test the WEP. Although these variations are supposedto be very small, the e®ects should take modifications to other sciences like anthropology,chemistry, biology, etc.