Atoms Is Nature Discrete or Continuous? The Discrete Viewpoint
... nucleus of helium atoms beta rays – turned out to be the same as cathode rays or electrons gamma rays – light of a small wave length, something like x-rays ...
... nucleus of helium atoms beta rays – turned out to be the same as cathode rays or electrons gamma rays – light of a small wave length, something like x-rays ...
Discrete Transformations: Parity
... G Parity (in strong interactions) Very few particles are eigenstates of the charge conjugation operator C For strong interactions, can extend C by combining it with an isospin transformation: Rotation of 180º about I2 (R2) takes I3 into –I3, for example R2 π+ Æ πCombining C and R2 operations: CR2 π ...
... G Parity (in strong interactions) Very few particles are eigenstates of the charge conjugation operator C For strong interactions, can extend C by combining it with an isospin transformation: Rotation of 180º about I2 (R2) takes I3 into –I3, for example R2 π+ Æ πCombining C and R2 operations: CR2 π ...
GroupMeeting_pjlin_20040810_pomeron
... Postulate 3. The S-matrix is an analytic function of Lorentz invariants (regarded as complex variables), with only those singularities required by unitarity. It can be shown that this property is a consequence of causality, i.e. that two regions with a space-like separation do not influence each oth ...
... Postulate 3. The S-matrix is an analytic function of Lorentz invariants (regarded as complex variables), with only those singularities required by unitarity. It can be shown that this property is a consequence of causality, i.e. that two regions with a space-like separation do not influence each oth ...
Chapter 4 The Two Slit Experiment
... must ‘know’ how far apart the slits are in order for the positions that they strike the screen to depend on d, and they cannot ‘know’ this if each electron goes through only one slit. We could imagine that the electrons determine the separation between slits by supposing that they split up in some w ...
... must ‘know’ how far apart the slits are in order for the positions that they strike the screen to depend on d, and they cannot ‘know’ this if each electron goes through only one slit. We could imagine that the electrons determine the separation between slits by supposing that they split up in some w ...
Laser Cooling of Atoms, Ions, or Molecules by Coherent Scattering
... for creating high-brightness atomic sources for various applications, has been limited to the alkalis, a small number of other atomic species, and several trapped ions [2]. Doppler cooling, which represents the dominant mechanism at all but the lowest velocities, is based on the preferential scatter ...
... for creating high-brightness atomic sources for various applications, has been limited to the alkalis, a small number of other atomic species, and several trapped ions [2]. Doppler cooling, which represents the dominant mechanism at all but the lowest velocities, is based on the preferential scatter ...
Geiger–Marsden experiment
The Geiger–Marsden experiment(s) (also called the Rutherford gold foil experiment) were a landmark series of experiments by which scientists discovered that every atom contains a nucleus where its positive charge and most of its mass are concentrated. They deduced this by measuring how an alpha particle beam is scattered when it strikes a thin metal foil. The experiments were performed between 1908 and 1913 by Hans Geiger and Ernest Marsden under the direction of Ernest Rutherford at the Physical Laboratories of the University of Manchester.