Fermi-Dirac distributions for quark partons

Fermi-dirac Distributions for Quark Partons

We propose to use Fermi-Dirac distributions for quark and antiquark partons. It allows a fair description of the x-dependence of the very recent NMC data on the proton and neutron structure functions F p 2 (x) and F n 2 (x) at Q = 4 GeV, as well as the CCFR antiquark distribution xq(x). We show that one can also use a corresponding Bose-Einstein expression to describe consistently the gluon dis...

Generalized Bose-Einstein and Fermi-Dirac distributions: The interpolation approximation

Generalized Bose-Einstein and Femi-Dirac distributions in the interpolation approximation (IA) has been shown to yield results in agreement with the exact ones within the O(q − 1) and in highand low-temperature limits [H. Hasegawa, arXiv:0904.2399], where q stands for the entropic index. We have applied the generalized distributions in the IA to typical nonextensive quantum subjects: the black-...

Fermi-Dirac Statistics

Fermi-Dirac statistics are one of two kinds of statistics exhibited by!identical quantum particles, the other being !Bose-Einstein statistics. Such particles are called fermions and bosons respectively (the terminology is due to Dirac [1902-1984] [1]). In the light of the !spin-statistics theorem, and consistent with observation, fermions are invariably spinors (of half-integral spin), whilst b...

1926 Enrico Fermi discovers the spin - statistics connection 1926 Paul Dirac introduces Fermi - Dirac

-260 Archimedes mathematically works out the principle of the lever and discovers the principle of buoyancy 60 Hero of Alexandria writes Metrica, Mechanics, and Pneumatics 1490 Leonardo da Vinci describes capillary action 1581 Galileo Galilei notices the timekeeping property of the pendulum 1589 Galileo Galilei uses balls rolling on inclined planes to show that di erent weights fall with the sa...

Dipole Moments in Thomas-Fermi-Dirac and Thomas-Fermi Theories