Pi- p ELASTIC SCATTERING IN THE CMS ENERGY RANGE 1400-MeV TO 2000-MeV

Brody, A.D. ; Cashmore, R.J. ; Kernan, A. ; et al.
Phys.Rev.D 3 (1971) 2619, 1971.
Inspire Record 60976 DOI 10.17182/hepdata.4110

Total and differential cross sections for π−p elastic scattering are presented at 35 energies between 1400 and 2000 MeV.

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pi-p Elastic Scattering in the Energy Range 300-700 MeV

Ogden, Philip M. ; Hagge, Donald E. ; Helland, Jerome A. ; et al.
Phys.Rev. 137 (1965) B1115-B1125, 1965.
Inspire Record 944964 DOI 10.17182/hepdata.537

Differential cross sections for elastic π−p scattering were measured at eight energies for positive pions and seven energies for negative pions. Energies ranged from 310 to 650 MeV. These measurements were made at the 3-GeV proton synchrotron at Saclay, France. A beam of pions from an internal BeO target was directed into a liquid-hydrogen target. Fifty-one scintillation counters and a matrix-coincidence system were used to measure simultaneously elastic events at 21 angles and charged inelastic events at 78 π−p angle pairs. Events were detected by coincidence of pulses indicating the presence of an incident pion, scattered pion, and recoil proton, and the results were stored in the memory of a pulse-height analyzer. Various corrections were applied to the data and a least-squares fit was made to the results at each energy. The form of the fitting function was a power series in the cosine of the center-of-mass angle of the scattered pion. Integration under the fitted curves gave values for the total elastic cross sections (without charge exchange). The importance of certain angular-momentum states is discussed. The π−−p data are consistent with a D13 resonant state at 600 MeV, but do not necessarily require such a resonant state.

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