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Inclusive omega photoproduction from nuclei and omega in the nuclear medium
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Inclusive omega photoproduction from nuclei and omega in the nuclear medium
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| dc.contributor.author | Oset Báguena, Eulogio | |
| dc.contributor.author | Kaskulov, Murat M. | |
| dc.contributor.author | Hernández Gajate, Eliecer | |
| dc.date.accessioned | 2015-09-07T12:08:19Z | |
| dc.date.available | 2015-09-07T12:08:19Z | |
| dc.date.issued | 2007 | |
| dc.identifier.citation | Oset Báguena, Eulogio Kaskulov, Murat M. Hernández Gajate, Eliecer 2007 Inclusive omega photoproduction from nuclei and omega in the nuclear medium European Physical Journal A 31 2 245 254 | |
| dc.identifier.uri | http://hdl.handle.net/10550/46904 | |
| dc.description.abstract | With the aim of extracting information on the shift of the ω mass in the nuclear medium we analyze data obtained at ELSA from where claims for evidence of a mass shift of the ω have been made. We develop a Monte Carlo simulation code which takes into account the possible reactions in the experimental set-up of (γA → π0γX) in the vicinity of the ω production region with subsequent ω → π0γ decay. We compare our results with experiment for the distribution of π0γ invariant masses and conclude that the distribution is compatible with an enlarged ω width of about 90MeV at nuclear-matter density and no shift in the mass. This change in the width would be compatible with the preliminary results obtained from the transparency ratio in the A-dependence of ω production. The discrepancy of the present conclusions with former claims of an evidence for a shift of the ω mass stems from a different choice of background which is discussed in the paper. | |
| dc.language.iso | eng | |
| dc.relation.ispartof | European Physical Journal A, 2007, vol. 31, num. 2, p. 245-254 | |
| dc.subject | Física | |
| dc.title | Inclusive omega photoproduction from nuclei and omega in the nuclear medium | |
| dc.type | journal article | es_ES |
| dc.date.updated | 2015-09-07T12:08:19Z | |
| dc.identifier.doi | 10.1140/epja/i2006-10169-6 | |
| dc.identifier.idgrec | 043123 | |
| dc.rights.accessRights | open access | es_ES |
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