Observables in high-statistics measurements of the reaction $\overline{p}p$ --> $\overline{\Lambda}\Lambda$
| Autoři: | Barnes, P D, Birien, P, Breunlich, W H, Bröders, R, Dennert, H, Diebold, G, Dutty, W, Eisenstein, R A, Eyrich, W, Fischer, H, Von Frankenberg, R, Franklin, G, Franz, J, Geyer, R, Hamann, N H, Hauffe, J, Hertzog, D W, Hofmann, A, Johansson, T, Kilian, K, Kirsch, M, Kraft, R A, Nägele, N, Oelert, Walter, Ohlsson, S, Quinn, B, Röhrich, K, Rössle, E, Sachs, K, Schledermann, H, Schmitt, H, Schumacher, R, Sefzick, T, Sehl, G, Seydoux, J, Stinzing, F, Tayloe, R, Todenhagen, R, Zeps, V, Ziolkowski, M |
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| Rok vydání: | 1996 |
| Témata: | High Energy Physics::Phenomenology, High Energy Physics::Experiment, Nuclear Experiment, Particle Physics - Experiment |
| Popis: | Associated strangeness production was studied in the $\bar{\rm p}{\rm p}\rightarrow \bar{\Lambda}\Lambda \rightarrow \bar{\rm p}\pi^{+} {\rm p}\pi^{-}$ reaction at the CERN antiproton facility LEAR using the experimental set-up of PS185. Results from two high--statistics measurements at incident antiproton momenta of $1.642$ and 1.918 GeV/$c$ are reported. Approximately 40 000 reconstructed events at each momentum have allowed us to measure the total and differential cross-sections, the spin polarizations, the spin correlations, and the singlet fractions of the $\Lambda\bar{\Lambda}$ pair. Since the decays of both the $\Lambda$ and the $\bar{\Lambda}$ were simultaneously observed in the same detector, we are able to provide upper limits on CP and CPT violation phenomena in the weak interaction. |
| Jazyk: | English |
| Přístupová URL adresa: | https://explore.openaire.eu/search/publication?articleId=od________65::ec9e6c685eb8779c9b46e215c6b8c2e4 http://cds.cern.ch/record/304759 |
| Rights: | OPEN |
| Přírůstkové číslo: | edsair.od........65..ec9e6c685eb8779c9b46e215c6b8c2e4 |
| Autor: | Barnes, P D, Birien, P, Breunlich, W H, Bröders, R, Dennert, H, Diebold, G, Dutty, W, Eisenstein, R A, Eyrich, W, Fischer, H, Von Frankenberg, R, Franklin, G, Franz, J, Geyer, R, Hamann, N H, Hauffe, J, Hertzog, D W, Hofmann, A, Johansson, T, Kilian, K, Kirsch, M, Kraft, R A, Nägele, N, Oelert, Walter, Ohlsson, S, Quinn, B, Röhrich, K, Rössle, E, Sachs, K, Schledermann, H, Schmitt, H, Schumacher, R, Sefzick, T, Sehl, G, Seydoux, J, Stinzing, F, Tayloe, R, Todenhagen, R, Zeps, V, Ziolkowski, M |
| Jazyk: | angličtina |
| Rok vydání: | 1996 |
| Předmět: | |
| Popis: | Associated strangeness production was studied in the $\bar{\rm p}{\rm p}\rightarrow \bar{\Lambda}\Lambda \rightarrow \bar{\rm p}\pi^{+} {\rm p}\pi^{-}$ reaction at the CERN antiproton facility LEAR using the experimental set-up of PS185. Results from two high--statistics measurements at incident antiproton momenta of $1.642$ and 1.918 GeV/$c$ are reported. Approximately 40 000 reconstructed events at each momentum have allowed us to measure the total and differential cross-sections, the spin polarizations, the spin correlations, and the singlet fractions of the $\Lambda\bar{\Lambda}$ pair. Since the decays of both the $\Lambda$ and the $\bar{\Lambda}$ were simultaneously observed in the same detector, we are able to provide upper limits on CP and CPT violation phenomena in the weak interaction. |
| Databáze: | OpenAIRE |
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