Energy dependence and scaling of the spin-correlation and polarization parameters in elastic proton-proton scattering

The analyzing powers ANand spin correlation parameters ANN, ASS, and ASLof the elastic proton-proton scattering have been measured with an internal polarized atomic beam target at the cooler synchrotron COSY. Excitation functions were taken continuously during the acceleration and deceleration of the internal beam for kinetic energies ranging between 0.45 and 2.5 GeV and scattering angles 30°≤Θc.m.≤90°. The analyzing power excitation functions provide a new polarization standard in the GeV region. The spin correlation data on ASSdisagree strikingly with existing phase shift solutions. The addition of the new polarization data to the world database removes some of the ambiguities in the phase shift solutions and the direct reconstruction of scattering amplitudes. The data are compared with a recent extension of a meson-exchange potential model to higher energies.

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Energy Dependence of the Slope of the Forward Peak in Elastic Proton-Proton Scattering

Progress of Theoretical Physics ◽

10.1143/ptp.44.557 ◽

1970 ◽

Vol 44 (2) ◽

pp. 557-558 ◽

Cited By ~ 1

Author(s):

Mamoru Kawasaki ◽

Masanori Kobayashi ◽

Minoru Yonezawa

Keyword(s):

Energy Dependence ◽

Forward Peak ◽

Proton Scattering ◽

Proton Proton ◽

Elastic Proton

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Spin Correlation Measurement in Proton-Proton Scattering and Comparison with the Theories of the Local Hidden Variables

Quantum Mechanics, A Half Century Later ◽

10.1007/978-94-010-1196-9_15 ◽

1977 ◽

pp. 291-303

Author(s):

M. Lamehi-Rachti ◽

W. Mittig

Keyword(s):

Hidden Variables ◽

Spin Correlation ◽

Correlation Measurement ◽

Proton Scattering ◽

Proton Proton

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Analyzing power measurements in elastic proton-proton scattering at 24 and 400 GeV

10.1063/1.41525 ◽

1992 ◽

Author(s):

Richard A. Phelps

Keyword(s):

Proton Scattering ◽

Proton Proton ◽

Elastic Proton ◽

Power Measurements ◽

Analyzing Power

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Energy Dependence of Slope Parameter in Elastic Nucleon-Nucleon Scattering

Advances in High Energy Physics ◽

10.1155/2015/914170 ◽

2015 ◽

Vol 2015 ◽

pp. 1-14 ◽

Cited By ~ 5

Author(s):

V. A. Okorokov

Keyword(s):

Experimental Data ◽

Energy Dependence ◽

Nucleon Nucleon ◽

High Energy ◽

Slope Parameter ◽

Proton Antiproton ◽

Proton Proton ◽

Elastic Proton ◽

Energy Domain ◽

Very High Energy

The diffraction slope parameter is investigated for elastic proton-proton and proton-antiproton scattering based on all the available experimental data at low and intermediate momentum transfer values. Energy dependence of the elastic diffraction slope is approximated by various analytic functions. The expanded “standard” logarithmic approximations with minimum number of free parameters allow description of the experimental slopes in all the available energy range reasonably. The estimations of asymptotic shrinkage parameterαP′are obtained for various|t|domains based on all the available experimental data. Various approximations differ from each other both in the low energy and very high energy domains. Predictions for diffraction slope parameter are obtained for elastic proton-proton scattering from NICA up to future collider (FCC/VLHC) energies, for proton-antiproton elastic reaction in FAIR energy domain for various approximation functions.

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