POLARIZATION-CORRELATION STOKES PARAMETERS FOR THE QUADRUPOLE 2P(6)-2P(5)3P J=2 TRANSITIONS IN NEONстатья
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Аннотация:First calculations of the polarization-correlation Stokes parameters P-i (i = 1, 2, 3, 4) for the quadrupole excitations by electron impact in heavy inert gases are carried out taking the 2p(5)3p J = 2 states of neon as an example. The distorted-wave Born approximation and the multichannel diffraction approximation are used and the sensitivity of the P, parameters to different couplings is studied. The indirect dipole couplings via the resonance 2p(5)3s J = 1 levels cause a drastic rotation of the excitation amplitudes in the complex plane and strongly affect the Stokes parameters. The results are compared with recent measurements. The excitation cross sections are briefly discussed.