Modification of the $ω$-Meson Lifetime in Nuclear Matter

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dc.creatorKotulla, M.
dc.creatorTrnka, D.
dc.creatorMühlich, P.
dc.creatorAnton, G.
dc.creatorBacelar, J. C. S.
dc.creatorBartholomy, O.
dc.creatorBayadilov, D.
dc.creatorBeloglazov, Y. A.
dc.creatorBogendörfer, R.
dc.creatorCastelijns, R.
dc.creatorCrede, V.
dc.creatorDutz, H.
dc.creatorEhmanns, A.
dc.creatorElsner, D.
dc.creatorEwald, R.
dc.creatorFabry, I.
dc.creatorFuchs, M.
dc.creatorEssig, K.
dc.creatorFunke, Ch.
dc.creatorGothe, R.
dc.creatorGregor, R.
dc.creatorGridnev, A. B.
dc.creatorGutz, E.
dc.creatorHöffgen, S.
dc.creatorHoffmeister, P.
dc.creatorHorn, I.
dc.creatorHössl, J.
dc.creatorJaegle, I.
dc.creatorJunkersfeld, J.
dc.creatorKalinowsky, H.
dc.creatorKlein, Frank
dc.creatorKlein, Fritz
dc.creatorKlempt, E.
dc.creatorKonrad, M.
dc.creatorKopf, B.
dc.creatorKrusche, B.
dc.creatorLangheinrich, J.
dc.creatorLöhner, H.
dc.creatorLopatin, I. V.
dc.creatorLotz, J.
dc.creatorLugert, S.
dc.creatorMenze, D.
dc.creatorMesschendorp, J. G.
dc.creatorMertens, T.
dc.creatorMetag, V.
dc.creatorMosel, U.
dc.creatorNanova, M.
dc.creatorNovotny, R.
dc.creatorOstrick, M.
dc.creatorPant, L. M.
dc.creatorvan Pee, H.
dc.creatorPfeiffer, M.
dc.creatorRoy, A.
dc.creatorRadkov, A.
dc.creatorSchadmand, S.
dc.creatorSchmidt, Ch.
dc.creatorSchmieden, H.
dc.creatorSchoch, B.
dc.creatorShende, S.
dc.creatorSuft, G.
dc.creatorSumachev, V. V.
dc.creatorSzczepanek, T.
dc.creatorSüle, A.
dc.creatorThoma, U.
dc.creatorVarma, R.
dc.creatorWalther, D.
dc.creatorWeinheimer, Ch.
dc.creatorWendel, Ch.
dc.date2008-02-07
dc.date.accessioned2026-07-07T11:40:11Z
dc.date.available2026-07-07T11:40:11Z
dc.descriptionThe photo production of $ω$ mesons on the nuclei C, Ca, Nb and Pb has been measured using the Crystal Barrel/TAPS detector at the ELSA tagged photon facility in Bonn. The dependence of the $ω$ meson cross section on the nuclear mass number has been compared with three different types of models, a Glauber analysis, a BUU analysis of the Giessen theory group and a calculation by the Valencia theory group. In all three cases, the inelastic $ω$ width is found to be $130-150 \rm{MeV/c^2}$ at normal nuclear matter density for an average 3-momentum of 1.1 GeV/c. In the restframe of the $ω$ meson, this inelastic $ω$ width corresponds to a reduction of the $ω$ lifetime by a factor $\approx 30$. For the first time, the momentum dependent $ω$N cross section has been extracted from the experiment and is in the range of 70 mb.
dc.description5 pages, 4 figures
dc.identifierhttps://arxiv.org/abs/0802.0989
dc.identifierhttp://arxiv.org/abs/0802.0989
dc.identifierPhys.Rev.Lett.100:192302,2008
dc.identifierdoi:10.1103/PhysRevLett.100.192302
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/200174
dc.subjectNuclear Experiment
dc.subjectHigh Energy Physics - Phenomenology
dc.subjectNuclear Theory
dc.titleModification of the $ω$-Meson Lifetime in Nuclear Matter
dc.typetext

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