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- W3103231636 abstract "In an expanding universe the vacuum energy density rho_{Lambda} is expected to be a dynamical quantity. In quantum field theory in curved space-time rho_{Lambda} should exhibit a slow evolution, determined by the expansion rate of the universe H. Recent measurements on the time variation of the fine structure constant and of the proton-electron mass ratio suggest that basic quantities of the Standard Model, such as the QCD scale parameter Lambda_{QCD}, may not be conserved in the course of the cosmological evolution. The masses of the nucleons m_N and of the atomic nuclei would also be affected. Matter is not conserved in such a universe. These measurements can be interpreted as a leakage of matter into vacuum or vice versa. We point out that the amount of leakage necessary to explain the measured value of dot{m}_N/m_N could be of the same order of magnitude as the observationally allowed value of dot{rho}_{Lambda}/rho_{Lambda}, with a possible contribution from the dark matter particles. The dark energy in our universe could be the dynamical vacuum energy in interaction with ordinary baryonic matter as well as with dark matter." @default.
- W3103231636 created "2020-11-23" @default.
- W3103231636 creator A5008017000 @default.
- W3103231636 creator A5025152254 @default.
- W3103231636 date "2012-09-14" @default.
- W3103231636 modified "2023-10-18" @default.
- W3103231636 title "Matter non-conservation in the universe and dynamical dark energy" @default.
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- W3103231636 doi "https://doi.org/10.1088/0264-9381/29/21/215002" @default.
- W3103231636 hasPublicationYear "2012" @default.
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