Physics and Astronomy
A set of new, precise data have recently been made available by the NA49 Collaboration for charged pion production in proton-proton and proton-Carbon reactions at 158 GeV. The current paper compares this new data to five currently available arithmetic parameterizations. Although a precise fit is not expected, two of the parameterizations do not work very well but the other three are able to provide a moderately good, but not precise fit to the proton-proton data. The best two of these three parameterizations are scaled to the proton-Carbon data and again provide a moderately good, but not precise fit.
Physical Review D
Norbury, J. W.,
Townsend, L. W.
(2007). Parametrizations of Inclusive Cross Sections for Pion Production In Proton-Proton Collisions. II. Comparison To New Data. Physical Review D, 75(3).
Available at: http://aquila.usm.edu/fac_pubs/2091