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http://hdl.handle.net/2445/107265
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DC Field | Value | Language |
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dc.contributor.author | Ramos Gómez, Àngels | - |
dc.contributor.author | Tolós Rigueiro, Laura | - |
dc.contributor.author | Molina, R. | - |
dc.contributor.author | Oset Baguena, Eulogio | - |
dc.date.accessioned | 2017-02-22T15:06:40Z | - |
dc.date.available | 2017-02-22T15:06:40Z | - |
dc.date.issued | 2013-11-07 | - |
dc.identifier.issn | 1434-6001 | - |
dc.identifier.uri | http://hdl.handle.net/2445/107265 | - |
dc.description.abstract | We evaluate the width of the ω meson in nuclear matter. We consider the free decay mode of the ω into three pions, which is dominated by ρπ decay, and replace the ρ and π propagators by their medium-modified ones. We also take into account the quasielastic and inelastic processes induced by a vector-baryon interaction dominated by vector meson exchange, as well as the contributions coming from the ω→KK¯ mechanism with medium-modified K , K¯ propagators. We obtain a substantial increase of the ω width in the medium, reaching a value of 121 ± 10 MeV at normal nuclear matter density for an ω at rest, which comes mainly from ωN → ππN, ωNN → πNN processes associated to the dominant ω → ρπ decay mode. The value of the width increases moderately with momentum, reaching values of around 200MeV at 600MeV/c. | - |
dc.format.extent | 16 p. | - |
dc.format.mimetype | application/pdf | - |
dc.language.iso | eng | - |
dc.publisher | Società Italiana di Fisica & Springer Verlag | - |
dc.relation | info:eu-repo/semantics/altIdentifier/doi/10.1140/epja/i2013-13148-x | - |
dc.relation.isformatof | Versió postprint del document publicat a: https://doi.org/10.1140/epja/i2013-13148-x | - |
dc.relation.ispartof | European Physical Journal A, 2013, vol. 49, p. 148 | - |
dc.relation.uri | https://doi.org/10.1140/epja/i2013-13148-x | - |
dc.rights | (c) Società Italiana di Fisica & Springer Verlag, 2013 | - |
dc.source | Articles publicats en revistes (Física Quàntica i Astrofísica) | - |
dc.subject.classification | Mesons (Física nuclear) | - |
dc.subject.classification | Estructura nuclear | - |
dc.subject.classification | Física nuclear | - |
dc.subject.other | Mesons (Nuclear physics) | - |
dc.subject.other | Nuclear structure | - |
dc.subject.other | Nuclear physics | - |
dc.title | The width of the omega meson in the nuclear medium | - |
dc.type | info:eu-repo/semantics/article | - |
dc.type | info:eu-repo/semantics/acceptedVersion | - |
dc.identifier.idgrec | 630184 | - |
dc.date.updated | 2017-02-22T15:06:40Z | - |
dc.relation.projectID | info:eu-repo/grantAgreement/EC/FP7/283286/EU//HADRONPHYSICS3 | - |
dc.relation.projectID | info:eu-repo/grantAgreement/EC/FP7/291679/EU//NSLABDM | - |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | - |
Appears in Collections: | Articles publicats en revistes (Física Quàntica i Astrofísica) Publicacions de projectes de recerca finançats per la UE |
Files in This Item:
File | Description | Size | Format | |
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630184.pdf | 377.13 kB | Adobe PDF | View/Open |
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