Braz. J. Phys. vol.32 número4

We investigate topologial defets in models involving one and two or more real salar elds.. In models involving a single eld we examine two dierent sublasses of models,

results hold in the energy sale where hiral symmetry is broken and the Pion wavelength is muh.. bigger than the size of the system ( >>>

data of SD stations are sent to the entral data aqui-. sition system (CDAS) by mean of wireless

and quantum gauge elds propagating in a lassial.. gravitational bakground, and the

Gravitation presented during the XXII Brazilian National Meeting on Partiles and Fields arei.

The mehanism for ion neutralization at metal surfaes via surfae plasmon exitation was previ-..

mark the surfae of the Si/SiO2 substrate for loalization of the isolated SWNTs by using a

plasma mehanisms for, the heating of the emission line regions, absorption of 21 m radiation,.. produing time variability on dierent time sales and pair prodution and annihilation