Zobrazeno 1 - 10
of 265
pro vyhledávání: '"Barz, H."'
Autor:
Grosse, E., Barz, H. W., Enghardt, Wolfgang, Wünsch, Rudi, Prade, H., Dönau, F., Schlett, Mathias, Kämpfer, B.
Publikováno v:
Wissenschaftlich-Technische Berichte / Forschungszentrum Rossendorf; FZR-271 September 1999
Externí odkaz:
https://hzdr.qucosa.de/id/qucosa%3A21842
https://hzdr.qucosa.de/api/qucosa%3A21842/attachment/ATT-0/
https://hzdr.qucosa.de/api/qucosa%3A21842/attachment/ATT-0/
The time evolution of vector-meson spectral-functions is studied within a kinetic theory approach. We implement this formalism in a BUU type transport model. Applications focus on rho and omega mesons being important pieces for the interpretation of
Externí odkaz:
http://arxiv.org/abs/0910.1541
We apply a BUU type transport model for the interpretation of the di-electron invariant mass spectrum measured by the HADES collaboration for the reaction C(2 AGeV) + C. Our model incorporates the propagation of broad meson resonances emerging from t
Externí odkaz:
http://arxiv.org/abs/nucl-th/0605036
Autor:
Scheinast, W., Boettcher, I., Debowski, M., Dohrmann, F., Foerster, A., Grosse, E., Koczon, P., Kohlmeyer, B., Laue, F., Menzel, M., Naumann, L., Schwab, E., Senger, P., Shin, Y., Stroebele, H., Sturm, C., Surowka, G., Uhlig, F., Wagner, A., Walus, W., Kampfer, B., Barz, H. W.
Publikováno v:
Phys.Rev.Lett.96:072301,2006
Differential production cross sections of $K^{\pm}$ mesons have been measured in $p$ + C and $p$ + Au collisions at 1.6, 2.5 and 3.5 GeV proton beam energy. At beam energies close to the production threshold, the $K^-$ multiplicity is strongly enhanc
Externí odkaz:
http://arxiv.org/abs/nucl-ex/0512028
Autor:
Kolomeitsev, E. E., Hartnack, C., Barz, H. W., Bleicher, M., Bratkovskaya, E., Cassing, W., Chen, L. W., Danielewicz, P., Fuchs, C., Gaitanos, T., Ko, C. M., Larionov, A., Reiter, M., Wolf, Gy., Aichelin, J.
Publikováno v:
J.Phys.G31:S741-S758,2005
We compare multiplicities as well as rapidity and transverse momentum distributions of protons, pions and kaons calculated within presently available transport approaches for heavy ion collisions around 1 AGeV. For this purpose, three reactions have
Externí odkaz:
http://arxiv.org/abs/nucl-th/0412037
Autor:
Barz, H. W., Zetenyi, M.
Publikováno v:
Phys.Rev. C71 (2005) 065207
Angular distributions for production of the $\Theta^+$ pentaquark are calculated for the collisions of polarized protons with polarized target protons. We compare calculations based on different assumptions concerning spin and parity ($J=1/2^\pm,3/2^
Externí odkaz:
http://arxiv.org/abs/nucl-th/0411006
Publikováno v:
ActaPhys.Hung.A22:231-237,2005
K+, K- and \phi meson production in proton-nucleus (pA) collisions has been calculated within a BUU transport model. It is shown that the nucleon-hyperon strangeness transfer channel is essential. The role of three-body reactions has been investigate
Externí odkaz:
http://arxiv.org/abs/nucl-th/0405075
Autor:
Barz, H. W., Zetenyi, M.
Publikováno v:
Phys.Rev. C69 (2004) 024605
The cross section for production of Phi mesons in proton-nucleus reactions is calculated as a function of the target mass. The decay width of the Phi meson is affected by the change of the masses of the Phi, K+ and K- mesons in the medium. A strong a
Externí odkaz:
http://arxiv.org/abs/nucl-th/0310045
Autor:
Barz, H. W., Naumann, L.
Publikováno v:
Phys.Rev. C68 (2003) 041901
The cross sections for producing K$^-$ mesons in nucleon-hyperon elementary processes are estimated assuming one-pion exchange and using the experimentally known pion-hyperon cross sections. The results are implemented in a transport model which is a
Externí odkaz:
http://arxiv.org/abs/nucl-th/0308040
Publikováno v:
J.Phys.G28:2133,2002
Within a BUU type transport model we study $\phi$ meson production in subthreshold Ni+Ni and Ru+Ru reactions. For the first time we included in our model the elementary reaction channels $\rho+N,\Delta \to \phi+N$, $\pi+N(1520) \to \phi+N$ and $\pi \
Externí odkaz:
http://arxiv.org/abs/nucl-th/0112068