gamma*N -> N(1535) transition form factors in QCD

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ALIYEV T., SAVCI M.

PHYSICAL REVIEW D, vol.88, no.5, 2013 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 88 Issue: 5
  • Publication Date: 2013
  • Doi Number: 10.1103/physrevd.88.056021
  • Journal Name: PHYSICAL REVIEW D
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Middle East Technical University Affiliated: Yes

Abstract

The form factors, as well as the helicity amplitudes for the gamma*Nu -> Nu(1535) transition, are calculated in the framework of the QCD light-cone sum rules. The contamination coming from diagonal transition is eliminated by considering combinations of the sum rules corresponding to different Lorentz structures. A similar procedure is applied for the determination of the residue and mass of the negative-parity baryon. A comparison of our predictions on the helicity amplitudes with the existing theoretical and experimental results is also presented.