Braz. J. Phys. vol.31 número2

the low energy sattering of two fermions, in this theory, using a ut o (up to one loop), give the same results. as the alulation of the same quantities starting from the

the generalized GDH sum rule, whih are of interest to issues related to the spin of the proton as.. measured at high energies,

model: the presene of nonbaryoni \dark matter" in galaxies.. Using Newton's law

Studies of blak hole formation from gravitational ollapse have revealed interesting non-linear.. phenomena at the threshold of blak

We onsider the saling behavior in the ritial domain of superondutors at zero external

trap and laser system being built in Rio, to trap and perform high resolution spetrosopy on.. old hydrogen, is presented along with a disussion on the tehniques and

An ultrastati spaetime admits a globally dened oordinate system in whih the omponents of the metri tensor are time-. independent and the onditions g00 = 1 and goi =

Four-jet Higgs boson andidate with a reonstruted Higgs boson mass of 112.9 GeV/ 2. All four jets