Theory Seminar

DATE: 2006-10-17 11:00 - 12:00
PLACE: Kenkyu Honkan 2F RM 220
TITLE: Post-Newtonian Equivalence Principle
CONTACT: tsuda
SPEAKER: Oleg Teryaev   (JINR)
LANGUAGE: English
ABSTRACT: Besides the most well known manifestation of equivalence principle being the equality of the inertial and gravitational masses, there is another one, appearing wnen spin-gravity interaction is considered. It leads to the nullification of gravitational analog of anomalous magnetic moment and is not yet tested experimentally. The possible experiments with storage rings and cold neutrons are suggested and discussed. The case of gravity interaction with nucleon is considered in detail, when the relevant gravitational formfactors are related to the moments of Generalized Parton Distributions. These formfactors are important for the search of extra-dimensional gravity in diffraction at LHC. The validity of equivalence principle separately for quarks and gluons is conjectured, which is violated in perturbative QCD but may be restored beyond perturbatiiion theory. This conjecture is supported by lattice and non-perturbative calculations.

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