Journalartikel
Autorenliste: Kotulla, M.; Trnka, D.; Muehlich, P.; Anton, G.; Bacelar, J. C. S.; Bartholomy, O.; Bayadilov, D.; Beloglazov, Y. A.; Bogendoerfer, R.; Castelijns, R.; Crede, V.; Dutz, H.; Ehmanns, A.; Elsner, D.; Ewald, R.; Fabry, I.; Fuchs, M.; Essig, K.; Funke, Ch.; Gothe, R.; Gregor, R.; Gridnev, A. B.; Gutz, E.; Hoeffgen, S.; Hoffmeister, P.; Horn, I.; Hoessl, J.; Jaegle, I.; Junkersfeld, J.; Kalinowsky, H.; Klein, Frank; Klein, Fritz; Klempt, E.; Konrad, M.; Kopf, B.; Krusche, B.; Langheinrich, J.; Loehner, H.; Lopatin, I. V.; Lotz, J.; Lugert, S.; Menze, D.; Messchendorp, J. G.; Mertens, T.; Metag, V.; Mosel, U.; Nanova, M.; Novotny, R.; Ostrick, M.; Pant, L. M.; van Pee, H.; Pfeiffer, M.; Roy, A.; Radkov, A.; Schadmand, S.; Schmidt, Ch.; Schmieden, H.; Schoch, B.; Shende, S.; Suft, G.; Sumachev, V. V.; Szczepanek, T.; Suele, A.; Thoma, U.; Varma, R.; Walther, D.; Weinheimer, Ch.; Wendel, Ch.
Jahr der Veröffentlichung: 2008
Zeitschrift: Physical Review Letters
Bandnummer: 100
Heftnummer: 19
ISSN: 0031-9007
Open Access Status: Green
DOI Link: https://doi.org/10.1103/PhysRevLett.100.192302
Verlag: American Physical Society
Abstract:
Information on hadron properties in the nuclear medium has been derived from the photoproduction of omega mesons on the nuclei C, Ca, Nb, and Pb using the Crystal Barrel/TAPS detector at the ELSA tagged photon facility in Bonn. The dependence of the omega-meson cross section on the nuclear mass number has been compared with three different types of models: a Glauber analysis, a Boltzmann-Uehling-Uhlenbeck analysis of the Giessen theory group, and a calculation by the Valencia theory group. In all three cases, the inelastic omega width is found to be 130-150 MeV/c(2) at normal nuclear matter density for an average 3-momentum of 1.1 GeV/c. In the rest frame of the omega meson, this inelastic omega width corresponds to a reduction of the omega lifetime by a factor approximate to 30. For the first time, the momentum dependent omega N cross section has been extracted from the experiment and is in the range of 70 mb.
Zitierstile
Harvard-Zitierstil: Kotulla, M., Trnka, D., Muehlich, P., Anton, G., Bacelar, J., Bartholomy, O., et al. (2008) Modification of the ω-Meson Lifetime in Nuclear Matter, Physical Review Letters, 100(19), Article 192302. https://doi.org/10.1103/PhysRevLett.100.192302
APA-Zitierstil: Kotulla, M., Trnka, D., Muehlich, P., Anton, G., Bacelar, J., Bartholomy, O., Bayadilov, D., Beloglazov, Y., Bogendoerfer, R., Castelijns, R., Crede, V., Dutz, H., Ehmanns, A., Elsner, D., Ewald, R., Fabry, I., Fuchs, M., Essig, K., Funke, C., ...Wendel, C. (2008). Modification of the ω-Meson Lifetime in Nuclear Matter. Physical Review Letters. 100(19), Article 192302. https://doi.org/10.1103/PhysRevLett.100.192302
Schlagwörter
IN-MEDIUM; PHI-PHOTOPRODUCTION; PHOTON; QCD SUM-RULES; SPECTROMETER; TAPS; VECTOR-MESONS
