101 research outputs found
Reconstruction of quark mass matrices in the NNI form from the experimental data
We examined the question that what is a general form of quark mass matrices
which is achieved by the transformation that leaves the left-handed gauge
interaction invariant. In particular, we analyzed in detail the Fritzsch-type
and the Branco-Silva-Marcos-type parametrization. Both parametrizations contain
ten parameters and can be expressed by the experimental data. We explicitly
reconstructed quark mass matrices in terms of quark masses and CKM parameters
for the Fritzsch-type parametrization.Comment: 17 pages and 4 figure
Post-Newtonian Expansion of Gravitational Waves from a Particle in Circular Orbits around a Rotating Black Hole :Effects of Black Hole Absorption
When a particle moves around a Kerr black hole, it radiates gravitational
waves.Some of these waves are absorbed by the black hole. We calculate such
absorption of gravitational waves induced by a particle of mass mu in a
circular orbit on an equatorial plane around a Kerr black hole of mass M. We
assume that the velocity of the particle v is much smaller than the speed of
light c and calculate the energy absorption rate analytically. We adopt an
analytic technique for the Teukolsky equation developed by Mano, Suzuki and
Takasugi. We obtain the energy absorption rate to O((v/c)^8) compared to the
lowest order. We find that the black hole absorption occurs at O((v/c)^5)
beyond the Newtonian-quadrapole luminosity at infinity in the case when the
black hole is rotating, which is O((v/c)^3) lower than the non-rotating case.
Using the energy absorption rate, we investigate its effects on the orbital
evolution of coalescing compact binaries.Comment: 22 pages, ptptex, no figure
Absorption rate of the Kerr-de Sitter black hole and the Kerr-Newman-de Sitter black hole
By using an analytic solution of the Teukolsky equation in the Kerr-de Sitter
and Kerr-Newman-de Sitter geometries, an analytic expression of the absorption
rate formulae for these black holes is calculated.Comment: 11 pages, LaTeX. Several typos are correcte
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