Symmetry principles and spin effects for elementary particle reactions
Keywords:
spin, symmetry, kinematic singularities, proton-proton scatteringAbstract
We considered a universal formalism for any binary processes with particles of arbitrary spins and masses based on the principles of symmetry, invariance and conservation laws. Based on the symmetry principles we can separate the kinematics and dynamics of the binary processes. In this approach we can define the dynamic amplitudes which are free of kinematic singularities, have the same dimensions and are connected with observable quantities very simply. At extremely high energies with fixed angles observables are expressed via dynamic amplitudes with definite kinematical factors. These kinematical factors in the considered region in fact are small parameters in different powers. For proton-proton scattering we will have relations between asymmetry parameters and even numerical values for them. For the asymmetry parameter Ann it seems that its observed value just goes up to the obtained asymptotic number.
References
Brodsky S.J., Carlson C.E., Lipkin H.J. //Phys. Rev., D20. – 1979. – P. 2278.
Brodsky S.J., Lapage G.P. // Phys. Rev., D24 –1981. – P. 2848.
Chavleishvili, M. P. High Energy SpinPhysics / M.P. Chavleishvili // Proceedings of the9th International Symposium ; Eds. K.-H. Althoff,W. Meyer, Bonn, v. 1. – Springer-Verlag, Berlin,1991. – P. 489.
Chavleishvili M.P. // JINR Preprint, E2-92-385. – Dubna, 1992.
Chavleishvili M.P. Ludwig-MaximilianUniversity Preprint, LMU-02-93, Munchen, 1993.
Chavleishvili, M. P. Puzzle of high energypp-scattering. Helicity conservation from perturbative QCD or kinematic hierarchy? Quantum Chromodynamics: History and Prospects / M.P.Chavleishvili. – Oberwölz, Austria, 2012.
Krish A.D. // Phys. Rev. Lett. – 1989. – V.63. – P. 1137.
