2017 Impact factor 2.799
Hadrons and Nuclei


Eur. Phys. J. A 12, 341-347 (2001)

On polarization of strange baryons in reactions $\mth{p + p \to p + \Lambda^0 + K^+}$ and $\mth{p + p \to p + \Sigma^0 + K^+}$ near thresholds

A.Ya. Berdnikov, Ya.A. Berdnikov, A.N. Ivanov, V.A. Ivanova, V.F. Kosmach, M.D. Scadron and N.I. Troitskaya

Atominstitut der Österreichischen Universitäten, Arbeitsbereich Kernphysik und Nukleare Astrophysik, Technische Universität Wien, Wiedner Hauptstr. 8-10, A-1040 Wien, Austria

berdnikov@twonet.stu.neva.ru.
ivanov@kph.tuwien.ac.at
scadron@physics.arizona.edu

(Received: 22 October 2001 Communicated by V.V. Anisovich)

Abstract
Polarization properties of strange baryons produced in pp reactions, $\chem{p
+ p \to p + \Lambda^0 + K^+}$ and $\chem{p + p \to p + \Sigma^0 +
K^+}$ , near thresholds of the final states p $\Lambda^0$K + and p $\Sigma^0$K + are analysed relative to polarizations of colliding protons. The cross-sections for pp reactions are calculated within the effective Lagrangian approach accounting for strong pp rescattering in the initial state of colliding protons with a dominant contribution of the one-pion exchange and strong final-state interaction of daughter hadrons (Eur. Phys. J. A 9, 425 (2000)).

PACS
11.10.Cd - Axiomatic approach.
25.40.-h - Nucleon-induced reactions.
13.88.+e - Polarization in interactions and scattering.
14.20.Jn - Hyperons.

© Società Italiana di Fisica, Springer-Verlag 2001