57 citations · 71 across the 7 of their papers we have counts for
11 papers
On the radiative decays of light vector and axial-vector mesons
M. F. M. Lutz, S. Leupold
We study the light vector and axial-vector mesons. According to the hadrogenesis conjecture the nature of the two types of states is distinct. The axial-vector mesons are generated…
Hadrons in Medium -- Theory confronts experiment
Fabian Eichstaedt, Stefan Leupold, Ulrich Mosel +1
In this talk we briefly summarize our theoretical understanding of in-medium selfenergies of hadrons. With the special case of the meson we demonstrate that earlier calculation…
Omega mesons in medium - revisited
Fabian Eichstaedt, Stefan Leupold, Ulrich Mosel
Recent experimental observation by the CBELSA/TAPS collaboration indicates a downward mass shift of the meson when put into a nuclear medium. Therefore it is worthwhile to take…
Short-range correlations in quark matter
Frank Froemel, Stefan Leupold
We investigate the role of short-range correlations in quark matter within the framework of the SU(2) NJL model. Employing a next-to-leading order expansion in 1/N_c for the quark…
There is no local chiral perturbation theory at finite temperature
Stefan Leupold
For a low-temperature expansion in QCD it is well-known that the Lagrangian of vacuum chiral perturbation theory can be applied. This is due to the fact that the thermal effects of…
Gauge covariant heat kernel expansion at finite temperature
Stefan Leupold
The heat kernel method is extended to the case of finite temperature. Special emphasis is given to the study of gauge theories. Due to the compactness of space in the Euclidean tim…