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SUMMARY:Radiative decays of the low lying axial-vector mesons
DTSTART;VALUE=DATE-TIME:20080307T110000Z
DTEND;VALUE=DATE-TIME:20080307T120000Z
DTSTAMP;VALUE=DATE-TIME:20261112T030321Z
UID:indico-event-1617@indico.ific.uv.es
DESCRIPTION:We evaluate the radiative decay widths into a pseudo-scalar me
 son and a photon of the low lying axial vector mesons\, a1(1260)\, b1(1235
 )\, h1(1170)\, h1(1380)\, f1(1285) and K1(1270) [1\,2]\, which are dynamic
 ally generated from the vector-pseudoscalar interaction with the Chiral Un
 itary approach. [3] Especially\, in the Chiral Unitary approach\, two K1(1
 270) resonances were found [3\,4] in analogy with the two poles of the Lam
 bda(1405). We would like to discuss that\, if one considers the doublet po
 le structure of K1 in the experimental analysis of the radiative decay\, t
 he obtained experimental result in Ref.[5] could be changed. We also propo
 se a related experiment in order to obtain new information on the issue of
  the two pole structure of the K1(1270).\nReferences: [1] H. Nagahiro\, L.
  Roca and E. Oset\, Phys.Rev.D submitted. [2] L. Roca\, A. Hosaka and E. O
 set\, Phys.Lett.B658\,17-26 (2007). [3] L. Roca\, E.Oset and J. Singh\, Ph
 ys.Rev.D72\,014002 (2005). [4] L.S. Geng\, E. Oset\, L. Roca\, J.A. Oller\
 , Phys.Rev.D75\,014017 (2007). [5] A. Alavi-Harati et al.\, Phys.Rev.Lett.
 89\,072001 (2002).\n\nhttps://indico.ific.uv.es/event/1617/
LOCATION:Edf. Institutos de Investigación Sala Seminarios IFIC
URL:https://indico.ific.uv.es/event/1617/
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