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Author Palfrey, T. R. ♦ Nefkens, B. M. K. ♦ Mortara, L. ♦ Loeffler, F. J.
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword PHYSICS ♦ ANGULAR DISTRIBUTION ♦ BREMSSTRAHLUNG ♦ CARBON ♦ CROSS SECTIONS ♦ ENERGY ♦ ENERGY RANGE ♦ ERRORS ♦ MAGNETIC FIELDS ♦ MEASURED VALUES ♦ MOMENTUM ♦ NUCLEONS ♦ PHOTONS ♦ PHOTOPRODUCTION ♦ PIONS ♦ PIONS-MINUS ♦ PIONS-PLUS ♦ SPECTRA ♦ SPECTROMETERS ♦ TARGETS
Abstract Positive and negative pions are produced by photons on a carbon target and observed at laboratory angles of 35 deg , 73 deg , and 121 deg . At each angle the yield of mesons of constant energy is observed by a magnetic spectrometer as a function of peak bremsstrshlung energy E. Seven values of E ranging from 205 to 335 Mev are used. Yields and pi /sup -// pi /sup +/ ratios corrected for various systematic experimental errors are presented. By using a photon difference method the bremsstrahlung spectra are unfolded from the yield curves to give meson cross sections versus photon energy at fixed pion energies. These functions are compared with predicted yields that consider the internal momentum distribution of the target nucleons. (auth)
ISSN 0031899X
Educational Use Research
Learning Resource Type Article
Publisher Date 1961-05-15
Publisher Department Purdue Univ., Lafayette, Ind.
Journal Physical Review
Volume Number 122
Organization Purdue Univ., Lafayette, Ind.


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