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Transparency ratio in γ A -> η' A ' and the in-medium η ' width

Identificadores del recurso

http://hdl.handle.net/2445/44088

Procedencia

(RECERCAT (Dipòsit de la Recerca de Catalunya))

Ficha

Título:: Transparency ratio in γ A -> η' A ' and the in-medium η ' width
Tema:: Física nuclear; Constitució de la matèria; Mesons (Física nuclear); Hadrons; Fotons; Nuclear physics; Constitution of matter; Mesons (Nuclear physics); Photons
Descripción:: The photoproduction of η′η′-mesons off different nuclei has been measured with the CBELSA/TAPS detector system for incident photon energies between 15002200 MeV. The transparency ratio has been deduced and compared to theoretical calculations describing the propagation of η′η′-mesons in nuclei. The comparison indicates a width of the η′η′-meson of the order of Γ=1525 MeVΓ=1525 MeV at ρ=ρ0ρ=ρ0 for an average momentum pη′=1050 MeV/cpη′=1050 MeV/c, at which the η′η′-meson is produced in the nuclear rest frame. The inelastic η′Nη′N cross section is estimated to be 310 mb. Parameterizing the photoproduction cross section of η′η′-mesons by σ(A)=σ0Aασ(A)=σ0Aα, a value of α=0.84±0.03α=0.84±0.03 has been deduced.; M. Nanova1, V. Metag1, A. Ramos2, E. Oset3, I. Jaegle4,a, K. Makonyi1, K. Brinkmann5,O. Bartholomy5, D. Bayadilov5,6, Y.A. Beloglazov6, V. Crede5,b, H. Dutz5, A. Ehmanns5,D. Elsner7, K. Essig5, R. Ewald7, I. Fabry5, M. Fuchs5, Ch. Funke5, R. Gregor1,A.B. Gridnev6, E. Gutz5, S. H¨offgen5, P. Hoffmeister5, I. Horn5, J. Junkersfeld5,H. Kalinowsky5, Frank Klein7, Friedrich Klein7, E. Klempt5, M. Konrad7, B. Kopf8,9,B. Krusche4, J. Langheinrich7,9, H. L¨ohner10, I.V. Lopatin6, J. Lotz5, S. Lugert1,D. Menze7, T. Mertens4, J.G. Messchendorp10, C. Morales7, R. Novotny1, M. Ostrick7,c,L.M. Pant1,d, H. van Pee5, M. Pfeiffer1, A. Roy1,e, A. Radkov6, S. Schadmand1,f ,Ch. Schmidt5, H. Schmieden7, B. Schoch7, A. S¨ule7, V. V. Sumachev6,T. Szczepanek5, U. Thoma5, D. Trnka1, R. Varma1,g, D. Walther5, Ch. Wendel5(The CBELSA/TAPS Collaboration); Ramos, A., Oset, E.,... [et al.] fins 61 autors
Idioma:: English
Autor/Productor:: Ramos Gómez, Àngels; Oset Baguena, Eulogio
Editor:: Elsevier B.V.
Otros colaboradores/productores:: Universitat de Barcelona
Derechos:: (c) Elsevier B.V., 2012; info:eu-repo/semantics/openAccess
Fecha:: 2013-06-06T22:15:28Z
Tipo de recurso:: info:eu-repo/semantics/article; info:eu-repo/semantics/acceptedVersion

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8. <atom:title>Transparency ratio in γ A -> η' A ' and the in-medium η ' width</atom:title>
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 1. <atom:name>Ramos Gómez, Àngels</atom:name>
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1. <ow:Publication about="oai:www.recercat.cat:2072/212035">
 1. <dc:contributor>Universitat de Barcelona</dc:contributor>
 2. <dc:creator>Ramos Gómez, Àngels</dc:creator>
 3. <dc:creator>Oset Baguena, Eulogio</dc:creator>
 4. <dc:date>2013-06-06T11:30:59Z</dc:date>
 5. <dc:date>2013-06-06T11:30:59Z</dc:date>
 6. <dc:date>2012</dc:date>
 7. <dc:date>2013-06-06T11:30:59Z</dc:date>
 8. <dc:date>2013-06-06T22:15:28Z</dc:date>
 9. <dc:date>2013-06-06T22:15:28Z</dc:date>
 10. <dc:identifier>0370-2693</dc:identifier>
 11. <dc:identifier>http://dx.doi.org/10.1016/j.physletb.2012.03.039</dc:identifier>
 12. <dc:identifier>http://hdl.handle.net/2445/44088</dc:identifier>
 13. <dc:description>The photoproduction of η′η′-mesons off different nuclei has been measured with the CBELSA/TAPS detector system for incident photon energies between 1500 2200 MeV. The transparency ratio has been deduced and compared to theoretical calculations describing the propagation of η′η′-mesons in nuclei. The comparison indicates a width of the η′η′-meson of the order of Γ=15 25 MeVΓ=15 25 MeV at ρ=ρ0ρ=ρ0 for an average momentum pη′=1050 MeV/cpη′=1050 MeV/c, at which the η′η′-meson is produced in the nuclear rest frame. The inelastic η′Nη′N cross section is estimated to be 3 10 mb. Parameterizing the photoproduction cross section of η′η′-mesons by σ(A)=σ0Aασ(A)=σ0Aα, a value of α=0.84±0.03α=0.84±0.03 has been deduced.</dc:description>
 14. <dc:description>M. Nanova1, V. Metag1, A. Ramos2, E. Oset3, I. Jaegle4,a, K. Makonyi1, K. Brinkmann5,O. Bartholomy5, D. Bayadilov5,6, Y.A. Beloglazov6, V. Crede5,b, H. Dutz5, A. Ehmanns5,D. Elsner7, K. Essig5, R. Ewald7, I. Fabry5, M. Fuchs5, Ch. Funke5, R. Gregor1,A.B. Gridnev6, E. Gutz5, S. H¨offgen5, P. Hoffmeister5, I. Horn5, J. Junkersfeld5,H. Kalinowsky5, Frank Klein7, Friedrich Klein7, E. Klempt5, M. Konrad7, B. Kopf8,9,B. Krusche4, J. Langheinrich7,9, H. L¨ohner10, I.V. Lopatin6, J. Lotz5, S. Lugert1,D. Menze7, T. Mertens4, J.G. Messchendorp10, C. Morales7, R. Novotny1, M. Ostrick7,c,L.M. Pant1,d, H. van Pee5, M. Pfeiffer1, A. Roy1,e, A. Radkov6, S. Schadmand1,f ,Ch. Schmidt5, H. Schmieden7, B. Schoch7, A. S¨ule7, V. V. Sumachev6,T. Szczepanek5, U. Thoma5, D. Trnka1, R. Varma1,g, D. Walther5, Ch. Wendel5(The CBELSA/TAPS Collaboration)</dc:description>
 15. <dc:description>Ramos, A., Oset, E.,... [et al.] fins 61 autors</dc:description>
 16. <dc:format>14 p.</dc:format>
 17. <dc:format>application/pdf</dc:format>
 18. <dc:language>eng</dc:language>
 19. <dc:publisher>Elsevier B.V.</dc:publisher>
 20. <dc:relation>Versió postprint del document publicat a: http://dx.doi.org/10.1016/j.physletb.2012.03.039</dc:relation>
 21. <dc:relation>Physics Letters B, 2012, vol. 710, num. 4-5, p. 600-606</dc:relation>
 22. <dc:relation>info:eu-repo/grantAgreement/EC/FP7/227431</dc:relation>
 23. <dc:rights>(c) Elsevier B.V., 2012</dc:rights>
 24. <dc:rights>info:eu-repo/semantics/openAccess</dc:rights>
 25. <dc:subject>Física nuclear</dc:subject>
 26. <dc:subject>Constitució de la matèria</dc:subject>
 27. <dc:subject>Mesons (Física nuclear)</dc:subject>
 28. <dc:subject>Hadrons</dc:subject>
 29. <dc:subject>Fotons</dc:subject>
 30. <dc:subject>Nuclear physics</dc:subject>
 31. <dc:subject>Constitution of matter</dc:subject>
 32. <dc:subject>Mesons (Nuclear physics)</dc:subject>
 33. <dc:subject>Hadrons</dc:subject>
 34. <dc:subject>Photons</dc:subject>
 35. <dc:title>Transparency ratio in γ A -> η' A ' and the in-medium η ' width</dc:title>
 36. <dc:type>info:eu-repo/semantics/article</dc:type>
 37. <dc:type>info:eu-repo/semantics/acceptedVersion</dc:type>
 38. <dc:source>Estructura i Constituents de la Matèria</dc:source>
 39. <dc:source>Universitat de Barcelona</dc:source>
 40. <dc:source>Articles publicats en revistes (Estructura i Constituents de la Matèria)</dc:source>
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