Open AccessObservation of a narrow structure in the pp elastic scattering at T{sub kin} = 2.11 GeV
Author(s) -
J. Ball,
P.A. Chamouard,
M. Combet
Publication year - 1996
Language(s) - English
Resource type - Reports
DOI - 10.2172/211672
Subject(s) - amplitude , physics , spin (aerodynamics) , maxima , scattering , observable , range (aeronautics) , energy (signal processing) , elastic scattering , scattering amplitude , atomic physics , condensed matter physics , nuclear physics , quantum mechanics , materials science , thermodynamics , art , performance art , composite material , art history
The angular dependences of the pp elastic scattering analyzing power, spin correlation, depolarization transfer were measured in the angular range from 60{degrees} to 97{degrees} CM at 14 energies between 1.96 and 2 .23 GeV. At fixed angles two maxima were observed in the analyzing Power energy dependence, both below and above 2.11 GeV. Furthermore a rapid decrease Of the spin correlation Parameter at 90{degrees} CM occurs around this energy. The observables allow determination of the absolute values of three nonvanishing pp amplitudes at 90{degrees}. The energy dependence of the spin-single amplitude shows a shoulder centered at 2.11 GeV, while the spin-triplet amplitudes are decreasing functions of energy snowing no evidence of structure. All experimental data are listed in tables and their energy dependences are shown in figures