Download Role of Neutrinos, Strings, Gravity and Variable by Behram N. Kursunogammalu (Editor), Stephan L. Mintz PDF

By Behram N. Kursunogammalu (Editor), Stephan L. Mintz (Editor), Arnold Perlmutter (Editor)

This quantity, the complaints of the Coral Gables convention, held December 12-16, 2000, comprises a few contemporary advancements within the idea of gravitation, and discusses, particularly, the truth that gravity, like electrodynamics, is either appealing and repulsive. This estate of gravitation allows us: (1) to give an explanation for the saw growth of the universe, and, even as, its expanding acceleration; (2) to explain the explanations for the growth of the universe, including competing forces of repulsive quintessence and the gravitational strength of standard topic. additionally, given very powerful gravitational forces of black holes, debris succeed in excessive energies and copiously emit gamma rays in addition to neutrinos. the actual fact that those gamma rays burst at cosmic areas does suggest that gravity could be a resource of electromagnetism. we now have therefore bought an experimental proven fact that the 2 long-range forces of gravity and electrical energy are unified. The convention additionally had discussions on neutrino plenty, the cosmological consistent, and violation of the Lorentz invariance.

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Tegmark and M. Zaldarriaga. astro-ph/0002091. [33] O. Lahav et al. astro-ph/9912105. [34] M. Le Dour et al. astro-ph/0004282. [35] P. Bernardis, et al. (Boomerang experiment). Nature 404, 955 (2000). [36] S. Perlmutter et al (Supernova Cosmology Project). Nature 391, 51 (1998). G. Reiss et al. Astron. J. 116, 1009 (1998). J. P. B. Suntzeff, Sci. Am. 280, 28 (1999). [38] W. Hu and M. White, Phys. Rev. Lett. 77, 1687 (1996). [39] W. Hu and M. White, Ap. J. 471, 30 (1996). E. J. 153, 1 (1968). D. Sorkin, Int.

13), with the various W(t) simply being replaced by their barred counterparts. WL (t0) = - In order to see whether conformal gravity can thus fit- into the relevant W M (t0)+1/2 window (a window which we note includes WM (t0) = 0, ΩΛ (t0) = 1/2), it is thus necessary to analyze the solutions to Eq. (13). Before doing this, however, we note that unlike the situation in standard gravity where the sign of WL(t) is not a priori known (its sign is only ascertained via the supernovae fitting itself), in conformal gravity we see that since, as noted earlier, the sign of L is necessarily negative in the conformal theory, the cosmic repulsion associated with the negative effective gravitational coupling –hS 02/12 then entails that WL(t) itself is uniquely positive.

Rev. D56, 4511 (1997). [16] M. Kamionkowski, Cosmic Microwave Background Tests of Inflation. To be published in Proceedings of the 5th International Workshop on Topics in Astroparticle and Underground Physi cs (TAUP97), Gran Sasso, Italy, September 7-11, 1997. [17] M. Kamionkowski, Cosmological-Parameter Determination with Cosmic Microwave Background Temperature Anisotropies and Polarizat ion. To be published in the Proceedings of the 33rd rencontres de Moriond: Fundamental Parameters in Cosmology, Les Arcs, France, January 15-24, 1998.

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