Treated results: Experimental rainbow structure=A08-m4bi2
Fig. A08-m4bi2-F1 shows the rainbow
structures at collisional energies from 13.1 eV up to 55 eV
||Figure A08-m4bi2-F1: Rainbow structure versus initial colliding energy (CM system).
From twelve measured rainbow structures the
relative positions of the maxima of primary rainbow and
supernumeraries have been given while, arbitrary, always the third
supernumerary rainbow has been chosen as a zero point and has been
placed on a straight line
. In the figure the outer curves indicate
the boundaries of the rainbow structure. At the left side the curve
connects the maxima of the primary rainbows, at the right-hand side
the curve connects the measured maxima in the polar differential
cross section curve at , indicating scattering with maximal
collision parameter . The other full lines connect the measured maxima of the corresponding supernumeraries.
The wavelength of the repulsive interference as a function of the
kinetic energy has been given in Fig. A08-m4bi2-F2
. In the energy range from 13
to 84 eV these values concern the wavelength of the oscillations
directly beyond the primary rainbows. Because a varying value of the
wavelength as a function of the scattering angle could not be
observed, the values given in Fig. A08-m4bi2-F2
form the averaged values of ten oscillations just beyond the rainbow angle. The error bars only indicate the error
in the relative position of first and tenth oscillation.
||Figure A08-m4bi2-F2: Wavelength of the oscillatory differential cross section (CM
system) due to net-repulsive scattering, versus the colliding energy.
||Figure A08-m4bi2-F3: Detector signal versus laboratory scattering angle measured
at colliding energies of 38.7 and 55.0 eV. The arrows indicate the maxima of the structure due to primary and supernumary rainbows of the differential cross section. The ordinate scales differ by a factor of ten and have been shifted at the zero points.
||Figure A08-m4bi2-F4: Detector signal versus laboratory scattering angle measured
at colliding energies of 18.2 and 84 eV in the angular range just
beyond the primary rainbows. The abscissas of the corresponding curves
have been shifted in such a way that the maxima of the primary
rainbows, indicated by , coincide.