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In view of the recent experimental developments in ???^(0)? ? decay, and the fact that the Particle Data Group in the online edition of 2007 reports sizable changes of the radiative decay widths of vector mesons used as input in the theoretical [...]texto impreso
We improve the calculations of the ?????? decay within the context of meson chiral Lagrangians. We use a chiral unitary approach for [...]texto impreso
Mascaraque Susunaga, Arantzazu ; Roca, L. ; Avila, J. ; Drouard, S. ; Guyo, H. ; Asensio, M. C. | American Physical Society | 2002-09-15Synchrotron-radiation angle-resolved photoemission measurements were performed in the nondoped (PO_2)_4(WO_3)_4(WO_3)_4 compound in order to obtain a detailed picture of the electronic structure. This material is a low-dimensional compound due t[...]texto impreso
Roca, L. ; Mascaraque Susunaga, Arantzazu ; Avila, J. ; Drouard, S. ; Guyot, H. ; Asensio, M.C. | American Physical Society | 2004-02The P4W8O32 compound is a member of the low-dimensional monophosphate tungsten bronzes family whose reduced dimensionality induces electronic instabilities such as charge-density waves (CDWs). We report here the direct mapping of the Fermi surfa[...]texto impreso
By describing within the chiral unitary approach the s-wave interaction of the vector meson nonet with the octet of pseudoscalar Goldstone Bosons, we find that the main component of the axial vector mesons b_1(1235), h_1(1170), h_1(1380), a_1(12[...]
