Ulrike Mosel

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Jefferson Lab Experiment PR12-06-117, Quark Propagation and Hadron Formation, was approved in 2006 by PAC 30. Since that time there have been many new developments concerning the related physics topics, which we summarize in this document. These developments only serve to increase the relevance and urgency of the original proposal; this 12 GeV experiment(More)
Although one and two-participant events, as expressed by intransitive and transitive constructions, have been extensively studied from a cross-linguistic perspective, little work has been done on three-participant events and the ways they operate in different languages. Where there is description and analysis it is typically confined to syntactic(More)
We calculate the spectral function Aρ of the ρ meson in nuclear matter. The calculation is performed in the low density approximation, where the in-medium self energy Σmed is completely determined by the vacuum ρN forward scattering amplitude. This amplitude is derived from a relativistic resonance model. In comparison to previous non-relativistic(More)
We analyse the production and propagation of pions and kaons in heavy-ion reactions from 0.8 – 1.8 A·GeV within a coupled channel transport approach including the kaon production channels BB → KY N, πB → KY, BB → NNKK̄, πB → NKK̄, KB → KB and ππ → KK̄. Assuming the hyperon selfenergy to be 2/3 of the nucleon selfenergy we find that all inclusive(More)
For pion-induced dilepton production at HADES an understanding of the elementary reactions on the nucleon is mandatory. Here, because of vector meson dominance, the vector meson production plays a special role. With this aim in mind we developed in [1] a unitary coupled-channel e ective Lagrangian model that already incorporated the nal states N , N , 2 N ,(More)
The photoproduction of vector mesons on various nuclei has been studied using the CLAS detector at Jefferson Laboratory. The vector mesons, rho, omega, and varphi, are observed via their decay to e;{+}e;{-}, in order to reduce the effects of final-state interactions in the nucleus. Of particular interest are possible in-medium effects on the properties of(More)
In this talk I give a short review of theoretical results on the properties of hadrons in cold, equilibrium nuclear matter. I then discuss the observable consequences of any changes of these properties inside the medium in actual experiments. I demonstrate that any experimental verification of in-medium effects requires a state-of-the-art treatment of the(More)