POLARIZATION IN PROTON-PROTON SCATTERING NEAR 3.3 Mev
The polarization in proton-proton scattering was messured for energies near 3.3 Mev and scattering angles of theta /sub c.m./ =30 deg , 45 deg and 53 deg . The purpose of the experiment was to remove some of the ambiguities in the proton-proton scattering phase shifts at low energies. Protons were first scattered from gaseous hydrogen. The scattered protons were then scattered from helium, and the rightleft asymmetry was measured by means of two counter telescopes. The gas density of the helium target was increased locally by cooling with liquid air. Corrections on the observed polarization of up to 0.6% were applied to compensate for a number of experimental effects. The following values for the polarization were found: theta /sub c.m./ =30 deg , P= (0.07 plus or minus 0.16)%; theta /sub c.m./ =45 deg , P=10.25 plus or minus 0.16) %; theta /sub c.m./ = b3 deg , P = (0.58 plus or minus 0.24) %. These values are averages of measurements at slightly different proton energies. The errors are standard deviations and include all.known uncertainties. (auth)
- Research Organization:
- Univ. of Wisconsin, Madison
- NSA Number:
- NSA-14-013149
- OSTI ID:
- 4192641
- Journal Information:
- Nuclear Phys., Journal Name: Nuclear Phys. Vol. Vol: 15
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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