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dc.contributor.CRUESPUNIVERSIDADE DE ESTADUAL DE CAMPINASpt_BR
dc.typeArtigo de periódicopt_BR
dc.titleEikonal Representation In The Momentum-transfer Spacept_BR
dc.contributor.authorCarvalho P.A.S.pt_BR
dc.contributor.authorMartini A.F.pt_BR
dc.contributor.authorMenon M.J.pt_BR
unicamp.authorMartini, A.F., Inst. de Física Gleb Wataghin, Universidade Estadual de Campinas, 13083-970 Campinas, SP, Brazilpt_BR
unicamp.authorMenon, M.J., Inst. de Física Gleb Wataghin, Universidade Estadual de Campinas, 13083-970 Campinas, SP, Brazilpt_BR
unicamp.author.externalCarvalho, P.A.S., Ctro. Univ. de Patos de Minas, 38702-054 Patos de Minas, MG, Brazilpt
dc.description.abstractBy means of empirical fits to the differential cross section data on pp and pp elastic scattering, above 10 GeV (center-of-mass energy), we determine the eikonal in the momentum-transfer space (q2 - space). We make use of a numerical method and a novel semi-analytical method, through which the uncertainties from the fit parameters can be propagated up to the eikonal in the q2 - space. A systematic study of the effect of the experimental information at large values of the momentum transfer is developed and discussed in detail. We present statistical evidence that the imaginary part of the eikonal changes sign in the q2 - space and that the position of the zero decreases as the energy increases; after the position of the zero, the eikonal presents a minimum and then goes to zero through negative values. We discuss the applicability of our results in the phenomenological context, outlining some connections with nonperturbative QCD. A short review and a critical discussion on the main results concerning "model-independent" analyses are also presented. © Springer-Verlag/Società Italiana di Fisica 2005.en
dc.relation.ispartofEuropean Physical Journal Cpt_BR
dc.date.issued2005pt_BR
dc.identifier.citationEuropean Physical Journal C. , v. 39, n. 3, p. 359 - 376, 2005.pt_BR
dc.language.isoenpt_BR
dc.description.volume39pt_BR
dc.description.issuenumber3pt_BR
dc.description.firstpage359pt_BR
dc.description.lastpage376pt_BR
dc.rightsabertopt_BR
dc.sourceScopuspt_BR
dc.identifier.issn14346044pt_BR
dc.identifier.doi10.1140/epjc/s2004-02096-7pt_BR
dc.identifier.urlhttp://www.scopus.com/inward/record.url?eid=2-s2.0-13844267555&partnerID=40&md5=24458dd36eea3e59d832fa2e498f995ept_BR
dc.date.available2015-06-26T14:08:41Z-
dc.date.available2015-11-26T14:08:25Z-
dc.date.accessioned2015-06-26T14:08:41Z-
dc.date.accessioned2015-11-26T14:08:25Z-
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dc.description.provenanceMade available in DSpace on 2015-11-26T14:08:25Z (GMT). No. of bitstreams: 2 2-s2.0-13844267555.pdf: 609066 bytes, checksum: c2e4e06d4020ab00459b0a97978423e0 (MD5) 2-s2.0-13844267555.pdf.txt: 74775 bytes, checksum: 6322a172dabd1fb8ece299abfcd7a2b1 (MD5) Previous issue date: 2005en
dc.identifier.urihttp://www.repositorio.unicamp.br/handle/REPOSIP/93619-
dc.identifier.urihttp://repositorio.unicamp.br/jspui/handle/REPOSIP/93619-
dc.identifier.idScopus2-s2.0-13844267555pt_BR
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