• Media type: E-Article
  • Title: The radiative decays phi to gamma a_0 / f_0 in the molecular model for the scalar mesons
  • Contributor: Kalashnikova, Yu. S. [Author]; Kudryavtsev, A. E. [Author]; Nefediev, A. V. [Author]; Hanhart, C. [Author]; Haidenbauer, J. [Author]
  • imprint: Springer, 2005
  • Published in: The European physical journal / A 24, 437 - 443 (2005). doi:10.1140/epja/i2005-10008-4
  • Language: English
  • DOI: https://doi.org/10.1140/epja/i2005-10008-4
  • ISSN: 1434-6001
  • Keywords: Phi(1020): radiative decay ; potential ; scalar meson: model ; Phi(1020): branching ratio ; Phi(1020) --> f0(980) photon ; a0(980) ; Phi(1020) --> a0(980) photon ; scalar meson: wave function ; form factor ; numerical calculations ; K anti-K: bound state ; f0(980)
  • Origination:
  • Footnote: Diese Datenquelle enthält auch Bestandsnachweise, die nicht zu einem Volltext führen.
  • Description: We investigate the radiative decays of the phi-meson to the scalar mesons a(0)(980) and f(0)(980). We demonstrate that, contrary to earlier claims, these decays should be of the same order of magnitude for a molecular state and for a compact state and, therefore, the available experimental information is consistent with both a molecular as well as a compact structure of the scalars. Thus, the radiative decays of the phi-meson into scalars establish a sizable K K component of the scalar mesons, but do not allow to discriminate between molecules and compact states.
  • Access State: Open Access