Polarization measurements in π −p, K −p and p¯p elastic scattering at 40 GeV/ c

• Published in: Physics letters. B Vol. 57; no. 4; pp. 389 - 392
• Main Authors: Gaidot, A., Bruneton, C., Bystricky, J., Cozzika, G., Deregel, J., Derevschikov, A., Ducross, Y., Kazarinov, Yu.M., Kazarinov, M.Yu, Kanavets, V.P., Khantine-Langlois, F., Khatchaturov, B., Lehar, F., De Lesquen, A., Matulenko, Yu, Merlo, J.P., Meschanin, A.P., Miyashita, S., Movchet, J., Nurushev, S.B., Pierrard, J., Potashnikova, I., Raoul, J.C., Van Rossum, L., Saraykin, A., Siksin, V., Smirnov, E., Solovyanov, V., Strakhota, J.
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01.07.1975
• ISSN: 0370-2693; 1873-2445
• DOI: 10.1016/0370-2693(75)90478-5

We report final results on the polarization parameter P in elastic scattering of π −, K − and antiprotons at 40 GeV/ c incident momentum. The energy dependence of P(t) in π −p above 10 GeV/ c is well fitted by P(t) α s αR(t)-αP (t) where α R(t) are the effective Regge and Pomeron trajectories respectively. The data in K −p are compatible with exchange degeneracy. The results inp¯p show an important structure for |t|> 0.3 (GeV/c) 2 demonstrating the existence of a large helicity flip amplitude.