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Campo DC | Valor | Idioma |
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dc.contributor.author | Higa, R. | - |
dc.contributor.author | Hammer, H. -W. | - |
dc.contributor.author | van Kolck, U. | - |
dc.date.accessioned | 2013-09-30T18:55:43Z | - |
dc.date.accessioned | 2014-05-20T14:10:29Z | - |
dc.date.accessioned | 2016-10-25T17:21:15Z | - |
dc.date.available | 2013-09-30T18:55:43Z | - |
dc.date.available | 2014-05-20T14:10:29Z | - |
dc.date.available | 2016-10-25T17:21:15Z | - |
dc.date.issued | 2008-09-01 | - |
dc.identifier | http://dx.doi.org/10.1016/j.nuclphysa.2008.06.003 | - |
dc.identifier.citation | Nuclear Physics A. Amsterdam: Elsevier B.V., v. 809, n. 3-4, p. 171-188, 2008. | - |
dc.identifier.issn | 0375-9474 | - |
dc.identifier.uri | http://hdl.handle.net/11449/24325 | - |
dc.identifier.uri | http://acervodigital.unesp.br/handle/11449/24325 | - |
dc.description.abstract | We study the two-alpha-particle (alpha alpha) system in an Effective Field Theory (EFT) for halo-like systems. We propose a power Counting that incorporates the subtle interplay of strong and electromagnetic forces leading to a narrow resonance at an energy of about 0.1 MeV. We investigate the EFT expansion in detail, and compare its results with existing low-energy aa phase shifts and previously determined effective-range parameters. Good description of the data is obtained with a surprising amount of fine-tuning. This scenario can be viewed as an expansion around the limit where, when electromagnetic interactions are turned off, the (8)Be ground state is at threshold and exhibits conformal invariance. We also discuss possible extensions to systems with more than two alpha particles. (c) 2008 Elsevier B.V. All rights reserved. | en |
dc.format.extent | 171-188 | - |
dc.language.iso | eng | - |
dc.publisher | Elsevier B.V. | - |
dc.source | Web of Science | - |
dc.subject | effective field theory | en |
dc.subject | nuclear clusters | en |
dc.title | alpha alpha scattering in halo effective field theory | en |
dc.type | outro | - |
dc.contributor.institution | Univ Bonn | - |
dc.contributor.institution | University of Arizona | - |
dc.contributor.institution | Univ Groningen | - |
dc.contributor.institution | Universidade Estadual Paulista (UNESP) | - |
dc.description.affiliation | Univ Bonn, Helmholtz Inst Strahlen & Kernphys, D-53115 Bonn, Germany | - |
dc.description.affiliation | Univ Arizona, Dept Phys, Tucson, AZ 85721 USA | - |
dc.description.affiliation | Univ Groningen, Kernfys Versneller Inst, NL-9747 AA Groningen, Netherlands | - |
dc.description.affiliation | Univ Estadual Paulista, Inst Fis Teor, BR-01405900 São Paulo, Brazil | - |
dc.description.affiliationUnesp | Univ Estadual Paulista, Inst Fis Teor, BR-01405900 São Paulo, Brazil | - |
dc.identifier.doi | 10.1016/j.nuclphysa.2008.06.003 | - |
dc.identifier.wos | WOS:000258860600003 | - |
dc.rights.accessRights | Acesso restrito | - |
dc.relation.ispartof | Nuclear Physics A | - |
Aparece nas coleções: | Artigos, TCCs, Teses e Dissertações da Unesp |
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