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Title: Polarization observables D/sub NN/, P and A for vector pp. -->. vector p. pi. /sup +/n at 800 MeV

Technical Report ·
DOI:https://doi.org/10.2172/6582245· OSTI ID:6582245

In conjunction with a vector polarization transfer measurement in the vector pp ..-->.. vector d..pi../sup +/ reaction, we also obtained data on polarization observables for vector pp ..-->.. vector p..pi../sup +/n at 800 MeV incident proton energy. Scattered protons were detected in a spectrometer at angles from 5/sup 0/ to 11/sup 0/. Pions were detected in coincidence at angles 80/sup 0/ to 130/sup 0/. The proton momentum range covered was from 800 to 1300 MeV/c. The prominent peak observed near 1150 MeV/c in the proton spectrum is a reflection of ..delta../sup + +/ production at center of mass angles from 0/sup 0/ to 30/sup 0/. Regions of the spectrum corresponding to ..delta../sup + +/ production at backward THETA/sub cm/ angles and to the /sup 1/S/sub 0/ np final state interaction fall below the momentum acceptance limit for the spectrometer setting used in the present measurements. The events were binned into five proton momentum bins for the determination of the polarization observables D/sub NN/, P, and A.

Research Organization:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Rice Univ., Houston, TX (United States); Univ. of Texas, Austin, TX (United States); Univ. of California, Los Angeles, CA (United States)
DOE Contract Number:
AT03-81ER40027
OSTI ID:
6582245
Report Number(s):
CONF-830862-19-App.18; ON: DE84016930
Resource Relation:
Conference: 10. international conference on few-body problems in physics, Karlsruhe, F.R. Germany, 21 Aug 1983; Other Information: Portions are illegible in microfiche products
Country of Publication:
United States
Language:
English