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[en] This book is an introduction to the quantum mechanics of the angular momentum. After a description of the operators of spin and orbital angular momentum and their commutation relations the coupling of angular momenta is discussed. Then irreducible tensor operators are considered. Thereafter spherical harmonics are introduced together with correlation functions. In this connection the spherical harmonics is described. Thereafter the density matrix is considered with regards to polarization. Finally applications in scattering theory and many-body problems are considered. (HSI)
[de]
Dieses Buch ist eine Einfuehrung in die Quantenmechanik des Drehimpulses. Nach einer Beschreibung der Operatoren von Spin und Bahndrehimpuls und ihren Vertauschungsrelationen wird die Kopplung von Drehimpulsen diskutiert. Dann werden irreduzible Tensoroperatoren betrachtet. Danach werden Kugelfunktionen eingefuehrt zusammen mit Korrelationsfunktionen. In diesem Zusammenhang wird die Entwicklung nach Kugelfunktionen beschrieben. Danach wird die Dichtematrix betrachtet unter Beruecksichtigung von Polarisation. Schliesslich werden Anwendungen in Streutheorie und Vielteilchenproblemen betrachtet. (HSI)Source
Teubner Studienbuecher; 1984; 208 p; Teubner; Stuttgart (Germany, F.R.); ISBN 3-519-03061-6; 
; With 11 figs.
; With 11 figs.
[en] Published in summary form only
Journal
Verhandlungen der Deutschen Physikalischen Gesellschaft; ISSN 0420-0195; ; CODEN VDPEA; v. 23(5); p. T321
; CODEN VDPEA; v. 23(5); p. T321
[en] Using the ARGUS detector at the DORIS II storage ringe we have studied the production of antideuterons in e+e- annihilation at centre-of-mass energies around 10 GeV. From 21 events containing anti d candidates we determined the inclusive cross section 1/σdirhadxdσ/dp and the production rate in direct hadronic Υ(1S), Υ(2S) decays, which was measured to be (6.0±2.0±0.6)x10-5 anti d per event while in the continuum e+e- → qanti q only an upper limit of 1.7x10-5anti d per event (90% CL) could be obtained. Comparisons with a simple model and other ARGUS measurements hint at the underlaying production mechanism of antideuterons. (orig.)
Journal
No abstract available
Source
Zingl, H.; Haftel, M.; Zankel, H. (Graz Univ. (Austria). Inst. fuer Theoretische Physik) (eds.); Lecture notes in physics; no. 82; p. 117-118; ISBN 3-540-08917-9; ; 1978; p. 117-118; Springer; Berlin, Germany, F.R; 8. international conference on few body systems and nuclear forces; Graz, Austria; 24 - 30 Aug 1978; Short communication only.
; 1978; p. 117-118; Springer; Berlin, Germany, F.R; 8. international conference on few body systems and nuclear forces; Graz, Austria; 24 - 30 Aug 1978; Short communication only.
[en] Published in summary form only
Journal
Verhandlungen der Deutschen Physikalischen Gesellschaft; ISSN 0420-0195; ; CODEN VDPEA; v. 25(1); p. 25
; CODEN VDPEA; v. 25(1); p. 25
[en] We point out that chameleon field theories might reveal themselves as an ''afterglow'' effect in axion-like particle search experiments due to chameleon-photon conversion in a magnetic field. We estimate the parameter space which is accessible by currently available technology and find that afterglow experiments could constrain this parameter space in a way complementary to gravitational and Casimir force experiments.In addition, one could reach photon-chameleon couplings which are beyond the sensitivity of common laser polarization experiments. We also sketch the idea of a Fabry-Perot cavity with chameleons which could increase the experimental sensitivity significantly. (orig.)
Source
Oct 2007; 17 p; ISSN 0418-9833;
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