Latest documents http://publikationen.ub.uni-frankfurt.de/index/index/ Thu, 13 Dec 2012 14:59:23 +0100 Thu, 13 Dec 2012 14:59:23 +0100 http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/27309 We present measurements of exclusive ensuremathπ+,0 and η production in pp reactions at 1.25GeV and 2.2GeV beam kinetic energy in hadron and dielectron channels. In the case of π+ and π0 , high-statistics invariant-mass and angular distributions are obtained within the HADES acceptance as well as acceptance-corrected distributions, which are compared to a resonance model. The sensitivity of the data to the yield and production angular distribution of Δ (1232) and higher-lying baryon resonances is shown, and an improved parameterization is proposed. The extracted cross-sections are of special interest in the case of pp → pp η , since controversial data exist at 2.0GeV; we find \ensuremathσ=0.142±0.022 mb. Using the dielectron channels, the π0 and η Dalitz decay signals are reconstructed with yields fully consistent with the hadronic channels. The electron invariant masses and acceptance-corrected helicity angle distributions are found in good agreement with model predictions. Geydar Agakishiev; Alvarez-Pol; Balanda; Bassini; Michael Böhmer; Bokemeyer; Boyard; Cabanelas; Chernenko; Christ; Destefanis; Dohrmann; Dybczak; Eberl; Laura Fabbietti; Oleg Fateev; Finocchiaro; Jürgen Friese; Ingo Fröhlich; Tetyana Galatyuk; Juan A. Garzón; Roman Gernhäuser; Camilla Gilardi; Marina Golubeva; Diego González-Dıaz; Fedor Guber; Gumberidze; Hennino; Holzmann; Holzmann; Ierusalimov; Iori; Alexander Ivashkin; Martin Jurkovic; Kämpfer; Kanaki; Tatiana Karavicheva; Ilse Koenig; Wolfgang Koenig; Burkhard W. Kolb; Kotte; Kozuch; Krizek; Wolfgang Kühn; Andrej Kugler; Alexei Kurepin; S Lang; Kirill Lapidus; T. Liu; Ludwig Maier; Jochen Markert; Volker Metag; Beata Michalska; Emilie Morinière; Jehad Mousa; Mathias Münch; Christian Münch; Naumann; Jacek Tomasz Otwinowski; Yvonne C. Pachmayer; Vladimir Pechenov; Olga Pechenova; Tiago Pérez Cavalcanti; Jerzy Pietraszko; Vladimir Pospısil; Witold Przygoda; Béatrice Ramstein; Andrey Reshetin; M. Roy-Stephan; Anar Rustamov; Alexander Sadovsky; Benjamin Sailer; Piotr Salabura; M. Sánchez; Alexander Schmah; Erwin Schwab; Yuri Sobolev; Stefano Spataro; Björn Spruck; Herbert Ströbele; Joachim Stroth; Christian Sturm; Attilio Tarantola; Khaled Teilab; Pavel Tlusty; Alberica Toia; Michael Traxler; Radoslaw Trebacz; Haralabos Tsertos; Vladimir Wagner; Marcin Wisniowski; Tomasz Wojcik; Jörn Wüstenfeld; Sergey Yurevich; Yuri Zanevsky; Peter Zumbruch article http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/27309 Thu, 13 Dec 2012 14:59:23 +0100 http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/12394 Karl Ditters von Dittersdorf; Ferdinand Eberl book http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/12394 Mon, 21 Sep 2009 16:13:42 +0200