where W([E.sub.e],[p.sub.e],[p.sub.[~.v]) is the probability of neutron [beta]-decay; [E.sub.e], [p.sub.e] are the energy and momentum of the

electron; [p.sub.[-.v]] is the momentum of the antineutrino; v is the velocity of the

electron; a, A, B are the correlation coefficients; [sigma] is the neutron spin; P is the neutron beam polarization.

The first

electron micrograph of poxvirus was published in 1938.

Roughly speaking, an

electron from an exciton strikes au

electron bound to an atom, creating another exciton.

Unlike previous measurements [3-16] which are capable of measuring only one correlation coefficient such as A (the correlation between the neutron spin and the decay

electron momentum), our experiment will provide a complete set of correlations including not only A, but also B (the correlation between the neutron spin and the decay neutrino), a (the correlation between the neutrino momentum and the decay

electron momentum), and the

electron energy spectral distortion term b.

(*) Konsilarlaboratorium fur die Elektronenmikroskopische Erregerdiagnostik in the Robert Koch Institut,

Electron Microscopy and Imaging Group, D13353 Berlin, Germany; and ([dagger])

Electron Microscopy Unit, Department of Medical Microbiology and Infectious Diseases, University of Manitoba, Canada

Here X(E) is the experimental asymmetry for some slice of

electron energy E:

Lacking oxygen, these microbes transfer their

electrons to the anode.

Coincidences between

electrons and protons are detected in a field-expansion spectrometer.

Electron spins can exert rotational forces, or torques, on each other, much as arm wrestlers create torques as they push against each other.

The main features of radiative [beta]-decay have been derived in the classical approximation by Jackson [1] who assumes that an

electron is created at the origin at t = 0 with constant velocity v = c[beta], in which case radiation of angular frequency [omega] is emitted in the direction of the unit vector n with an angular distribution in energy per unit time per unit interval of angular frequency

The solenoid has been designed to have a slight (9.5[degrees]) bend in the magnetic field direction at one end allowing the decay proton and

electron to be guided out of the beam and into a charged particle detector held at a high negative potential ([approximately equal to] -30 kV) to accelerate the low energy protons to detectable energies.

It's a new variation of the

electron microscope, which aims beams of

electrons at a sample in order to image it.