251,885 research outputs found
Measurements of scattering observables for the break-up reaction
High-precision measurements of the scattering observables such as cross
sections and analyzing powers for the proton-deuteron elastic and break-up
reactions have been performed at KVI in the last two decades and elsewhere to
investigate various aspects of the three-nucleon force (3NF) effects
simultaneously. In 2006 an experiment was performed to study these effects in
break-up reaction at 135 MeV with the detection system, Big
Instrument for Nuclear polarization Analysis, BINA. BINA covers almost the
entire kinematical phase space of the break-up reaction. The results are
interpreted with the help of state-of-the-art Faddeev calculations and are
partly presented in this contribution.Comment: Proceedings of 19th International IUPAP Conference on Few-Body
Problems in Physics, Bonn University, 31.08 - 05.09.2009, Bonn, GERMAN
First Model-Independent Measurement of the Spin Triplet Scattering Length from Final State Interaction in the Reaction
The reaction has been measured with the
COSY-TOF detector at a beam momentum of . The polarized
proton beam enables the measurement of the beam analyzing power by the
asymmetry of the produced kaon (). This observable allows the
spin triplet scattering length to be extracted for the first time
model independently from the final-state interaction in the reaction. The
obtained value is . This value is
compatible with theoretical predictions and results from model-dependent
analyses.Comment: Revised version as accepted for publication in PR
The IceCube Neutrino Observatory - Contributions to ICRC 2015 Part V: Neutrino Oscillations and Supernova Searches
Papers on neutrino oscillations and supernova searches submitted to the 34th
International Cosmic Ray Conference (ICRC 2015, The Hague) by the IceCube
Collaboration.Comment: 20 pages, 13 figures, Papers submitted to the 34th International
Cosmic Ray Conference, The Hague 2015, v2 has a corrected author lis
Plasmonic mode converter for controlling optical impedance and nanoscale light-matter interaction
To enable multiple functions of plasmonic nanocircuits, it is of key
importance to control the propagation properties and the modal distribution of
the guided optical modes such that their impedance matches to that of nearby
quantum systems and desired light-matter interaction can be achieved. Here, we
present efficient mode converters for manipulating guided modes on a plasmonic
two-wire transmission line. The mode conversion is achieved through varying the
path length, wire cross section and the surrounding index of refraction.
Instead of pure optical interference, strong near-field coupling of surface
plasmons results in great momentum splitting and modal profile variation. We
theoretically demonstrate control over nanoantenna radiation and discuss the
possibility to enhance nanoscale light-matter interaction. The proposed
converter may find applications in surface plasmon amplification, index sensing
and enhanced nanoscale spectroscopy.Comment: 14 pages, 6 figure
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