rest mass


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rest mass

n.
The physical mass of a body when it is regarded as being at rest.
References in periodicals archive ?
0] will denote the variable rest mass of the electron so that the Planck-Laue relation becomes:
To find the rest mass of the body, taking into account the fields we should write the ratio M = E / [c.
99) The motion of bodies without rest mass, such as light, would seem to follow from their nature.
l = h / mc = 10 -13 cm should have rest mass 275 times larger than that of electron mass.
In recent years, some of the attempts to unify all of particle physics have proposed a small rest mass for the neutrino.
At the neutrino energies of the order of GeV, taking into account the smallness of the neutrino rest mass (several eV), [delta] [much less than] [upsilon].
3 tends [right arrow] 2, the binding energy tends to the value m of the rest mass.
In order to change states, a neutrino must have at least a tiny amount of substance, or rest mass.
Today, experiments with beta decay are trying to find out whether perhaps Pauli was a little bit wrong, and the neutrino does have a very small rest mass.
Recently an elementary particle has been discovered at the projects ATLAS [1] and CMS [2] of CERN, being unstable, having vanishing net electric charge and spin, and a rest mass of 125 GeV.
Consideration of the evidence fromsupernova 1987A now leads a number of physicists to conclude that neutrinos probably do have a rest mass, in contrast to previous work that interprets the evidence negatively.
Neutrinos from the supernova shouldcome to us at the speed of light so long as they have no rest mass.