Abstract
The polarization parameterP has been measured for elastic scattering on polarized protons, of π−, K− and ¯p at 40 GeV/c and of π+, K+ and p at 45 GeV/c. Four-momentum transfer ranges from −0·08 to −1·8 (GeV/c)2 for π−p, and from −0·08 to about −1sd0(GeV/c)2 for p, π+, K± and ¯p.
The angular distribution of the polarization in π−p exhibits the well known non sense double zero att=−0·6 (GeV/c)2. The K−p and ¯pp results are compatible with exchange degeneracy for ¦t¦r <0·5 (GeV/c)2. The energy dependence of the polarizationP(t) in π−p and in K+p above 10 GeV/c incident momentum is compatible with interference between Pomeron and Regge poles. On the contrary, the polarization in pp elastic scattering decreases faster than ordinary Regge model predictions. This result can be explained by interference between non flip and flip amplitudes of the Pomeron, leading to negative values for the polarization.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
de Lesquen A. et al., Phys. Letters40B (1972), 277.
Cozzika G. et al., Phys. Rev.164 (1967), 1672.
Pierrard J. et al., “Measurement of the spin rotation parameterR in π−p and K−p elastic scattering at 40 GeV/c”; submitted to Phys. Letters, andPierrard J. et al. (Serpukhov, Saclay, Dubna, Moscow Collaboration) Communication at the International Symposium on Hadron Scattering at High Energies, Liblice near Prague, June 1975.
Borghini M. et al., Phys. Letters31B (1970), 405.
Borghini M. et al., Phys. Letters36B (1971), 493.
Borghini M. et al., CERN Preprint (January 15, 1972).
Krisch A. D., Ninth Rencontre de Moriond Vol. 1 (1974), p. 103.
Capella A. et al., Nuovo Cimento63A (1969), 141.
Sanguinetti G., NP International Report 72-5 (CERN).
Pumplin J., Kane G. L., Phys. Rev.D 11 (1975), 1183.
Anderson S. et al., Contribution to the 3rd Int. Conference on High Energy Collisions, Stony Brook (1969).
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Gaidot, A., Bruneton, C., Bystricky, J. et al. Polarization measurements in high energy elastic scattering of pions, kaons, protons and antiprotons on protons and comparison with regge phenomenology. Czech J Phys 26, 25–33 (1976). https://doi.org/10.1007/BF01595092
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF01595092