06 - 2012 06. Februar - 12. Februar 2012	Redaktion K. Schiebel | Telefon: 06159-71-2703 | E-Mail: kurier@gsi.de

Auszeichnung für Dr. Brand

Dr. Holger Brand und Rahman Jamal, Technical & Marketing Director Europe, National Instruments, bei der Verleihung des Best Paper Award

Während des 16. Technologie- und Anwenderkongresses "Virtuelle Instrumente in der Praxis VIP" vom 12. bis 13. Oktober 2011 in Fürstenfeldbruck wurde Herr Dr. Holger Brand aus der Abteilung Experiment-Elektronik für seinen Beitrag zur Entwicklung von Kontroll- und Steuerungssystemen  mit dem  "Best Paper Award" Preis ausgezeichnet.

Eugen Badura

Nachruf

Wissenschaftliche Sitzungen/Seminare bei GSI

Di 07.02. 16.15 Uhr (Tee ab 15.45 Uhr)

GSI Kolloquium

Hörsaal
Marc Weber / Karlsruhe Institute of Technology (KIT): "Detectors: state-of-the-art, challenges, trends"

Progress in fundamental and applied science depends crucially on sophisticated detector instrumentation. Unfortunately, the realization of complex detector systems is not always straightforward. In this talk I will present a number of successful detectors in particle physics, astroparticle physics, heavy ion physics and photon science. I will discuss key challenges of future detectors and how these may be met by proper use of modern technologies, novel concepts and adequate system design.

Mi 08.02. 11.00 Uhr

Atomphysik-Seminar

Vorraum Atomphysik, Südbau, II. Stock
Martin Breitenfeldt, CERN, Genf: "First high-quality data with 35Ar: The search for scalar weak currents with WITCH"

Low energy precision experiments for the search of exotic components in the weak interaction are complementary to the high energy experiments at the colliders dedicated to discover new particles. In the case of the WITCH experiment the beta neutrino angular correlation coefficient (a) in nuclear beta decay is studied. A deviation from the distribution as predicted by the standard model will reveal the exotic interactions. For the study of the weak interaction WITCH combines a Penning trap arrangement to provide a scattering free source of beta-decaying nuclides with a MAC-E filter setup to analyze the recoil energy distribution. In the online experiments of last year it was finally possible to acquire the first sets of data, meaning recoil spectra of 35Ar ions. The first experiment resulted in a recoil spectrum with about 5000 events recorded. This first spectrum has been analyzed with the help of simulation programs developed in the collaboration and under consideration of the charge state distribution of the daughter nuclei, which has been determined at LPCtrap/GANIL. The result is a value of a = 1.12(33) which is compatible with the literature value for 35Ar. During the second online experiment in 2011 several more recoil spectra each with higher statistics were acquired, which were obtained using various spectrometer voltage sequences. These data are currently under analysis. A first estimation points for a statistical uncertainty on the value of a in the order of 2%. This will allow the investigation of systematic effects in the data as studied before by numerical simulations.

Mi 08.02. 11.00 Uhr

NuSTAR Seminar

Seminarraum Theorie, Südbau, III. Stock
Peter von Neumann-Cosel, TU Darmstadt: "Complete Electric Dipole Strength from Relativistic Proton Scattering and the Neutron Skin in 208Pb"

Scattering of polarized protons with energies of a few 100 MeV at angles close to and including 0° is presented as a new spectroscopic tool for the study of the electric dipole response in nuclei. Complete electric dipole strenth distributions can be extracted between about 5 and 20 MeV with two independent methods based on a multipole decomposition analysis of the cross sections and the combined information from spin transfer observables. A case study of 208Pb demonstrates excellent agreement with other probes but reveals the presence of previously unknown E1 strength just above the neutron threshold. Furthermore, the Coulomb-nuclear interference term in the cross sections shows sensitivity to the underlying structure of E1 transitions, allowing for the first time an experimental extraction of the pygmy dipole resonance (PDR). Possible information on the neutron skin in 208Pb and the symmetry energy in neutron matter from the measured dipole polarizability and PDR properties is discussed.

Vorträge an Hochschulen der näheren Umgebung

Die hier aufgenommenen Daten sind auswärtigen Ankündigungen entnommen und können von der Redaktion nicht auf ihre Richtigkeit überprüft werden

Darmstadt

Mo 06.02. 16.00 Uhr

HIC for FAIR Physik und Technik von Beschleunigern

Hörsaal S2/17, Raum 103, Schlossgartenstr. 8
Dr. Ulrich Laier, GSI: "The Collector Ring Debuncher"

Frankfurt

Mi 08.02. 17.00 Uhr c.t.

Physikalisches Kolloquium

Großer Hörsaal, Raum 0.111, Max-von-Laue-Str. 1
Prof. Dr. Matthias Kling, MPI für Quantenoptik, Garching: "Attosecond electron dynamicsin nanoparticles in strong laser fields"

Gießen

Mo 06.02. 17.00 Uhr c.t.

Physikalisches Kolloquium

Hörsaal III, Physik. Inst., Heinrich-Buff-Ring 14
Dr. Thorsten Wagner, Universität Paderborn: "Mesoporöse Materialien in der Gassensorik"

Kassel

Do 09.02. 17.15 Uhr

Physikalisches Kolloquium

Hörsaal 100, Heinrich-Plett-Straße 40
Prof. Dr. Steffen Glaser, TU München: "Optimal Control of Spins"

Mainz

Di 07.02. 17.00 Uhr c.t.

Physikalisches Kolloquium

Hörsaal des Instituts für Kernphysik, Becherweg 45
Prof. Stefan Brönnimann, University Bern: "Neue Ansätze der historischen Klimatologie und Anwendung für die Analyse von Stürmen und Starkniederschlägen in Mitteleuropa seit 1871"