scholarly journals The scalar contribution toτ →K πν τ

1996 ◽  
Vol 72 (1) ◽  
pp. 619-626
Author(s):  
Markus Finkemeier ◽  
Erwin Mirkes
Keyword(s):  
Scalar Contribution

Scalar contribution to the BFKL kernel

2010 ◽  
Vol 73 (7) ◽  
pp. 1214-1228 ◽  
Author(s):  
R. E. Gerasimov ◽  
V. S. Fadin
Keyword(s):  
Bfkl Kernel ◽  
Scalar Contribution

The scalar contribution toτ →K πν τ

1996 ◽  
Vol 72 (4) ◽  
pp. 619-626 ◽  
Author(s):  
Markus Finkemeier ◽  
Erwin Mirkes
Keyword(s):  
Scalar Contribution

VARIABLE SPEED OF LIGHT THEORIES: A THERMODYNAMIC ANALYSIS OF PLANETARY AND WHITE DWARF PHENOMENA

2011 ◽  
Vol 20 (05) ◽  
pp. 805-820
Author(s):  
PABLO D. SISTERNA
Keyword(s):  
Scalar Field ◽  
Time Variation ◽  
Equations Of State ◽  
Structure Constant ◽  
Hydrostatic Equilibrium ◽  
Fine Structure Constant ◽  
Variable Speed ◽  
Speed Of Light ◽  
Modified Equations ◽  
Scalar Contribution

The thermodynamics of a scalar field interacting with a perfect fluid is studied, and observable consequences of the covariant variable speed of light (VSL) theory proposed by J. Magueijo are obtained. The first law of thermodyamics is modified as the scalar field becomes an additional thermodynamical variable. A recipe to obtain the modified equations of state is also obtained. After discussing the Newtonian limit and the non-relativistic hydrostatic equilibrium equation for the theory, the time-variation of the radius of Mercury induced by the variability of the speed of light (c), and the scalar contribution to the luminosity of white dwarfs are found. Using a bound for the change of that radius and combining it with an upper limit for the variation of the fine-structure constant, a bound on the time-variation of c is set. An independent bound is obtained from luminosity estimates for Stein 2015B.

Scalar contribution to radiative decays of theηmeson

1977 ◽  
Vol 16 (3) ◽  
pp. 776-785 ◽  
Author(s):  
Gary K. Greenhut ◽  
Gerald W. Intemann
Keyword(s):  
Radiative Decays ◽  
Scalar Contribution

Scalar Second-Kind Relaxation of 27Al, 69Ga and 71Ga Nuclei in Aluminium and Gallium Complexes

1983 ◽  
Vol 38 (10) ◽  
pp. 1173-1181 ◽  
Author(s):  
V. P. Tarasov ◽  
V. I. Privalov ◽  
G. A. Kirakosyan ◽  
Yu. A. Buslaev
Keyword(s):  
Relaxation Times ◽  
Lattice Relaxation ◽  
Coupling Constants ◽  
Spin Coupling ◽  
Spin Lattice Relaxation ◽  
Nuclear Spins ◽  
Quadrupole Relaxation ◽  
Spin Lattice ◽  
Exchange Processes ◽  
Scalar Contribution

Abstract Spin-spin and spin-lattice relaxation times of nuclei 69,71Ga, 27Al, 14N in anions [MClnBr4-n]-and the solvate complexes [M(CH3CN)6]3+, produced from dissolution of MCl3 and MBr3 in the mixture CH3CN + CH3NO2 (M = Ga, Al), are measured in the temperature range from -40 up to + 70 °C. It is shown that nuclear spins of 69,71Ga, 27Al relax in the anionic and cationic complexes by means of the second-kind scalar and quadrupole relaxation mechanisms (due to the relaxation of the nuclei 35,37Cl, 79,81Br, 14N). The complexes [MClnBr4-n]-and [M(CH3CN)6]3+ in the investigated solutions are inert and do not undergo exchange processes in the NMR time scale. The scalar spin coupling constants in [M(CH3CN)6]3+ are determined from the scalar contribution to the relaxation rate of 69,71Ga, 27Al, and the measured relaxation time of 14N in the solvate complex; the results are J(69Ga-14N) = 59 ± 5 Hz, J(71Ga-14N) = 74 ± 6Hz, J(27Al-14N) = 22 ± 2Hz.

Sign in / Sign up

Export Citation Format

Share Document