Magnetic dipole, electric quadrupole and magnetic octupole moments of the Delta baryons in light cone QCD sum rules

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Azizi K.

EUROPEAN PHYSICAL JOURNAL C, cilt.61, sa.2, ss.311-319, 2009 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 61 Sayı: 2
  • Basım Tarihi: 2009
  • Doi Numarası: 10.1140/epjc/s10052-009-0988-0
  • Dergi Adı: EUROPEAN PHYSICAL JOURNAL C
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.311-319
  • Orta Doğu Teknik Üniversitesi Adresli: Hayır

Özet

Due to the very short life time of the Delta baryons, a direct measurement on the electromagnetic moments of these systems is almost impossible in the experiment and can only be done indirectly. Although only for the magnetic dipole moments of Delta(++) and Delta(+) systems there are some experimental data, the theoretical, phenomenological and lattice calculations could play crucial role. In the present work, the magnetic dipole (mu(Delta)), electric quadrupole (Q(Delta)) and magnetic octupole (O-Delta) moments of these baryons are computed within the light cone QCD sum rules. The results are compared with the predictions of the other phenomenological approaches, lattice QCD and existing experimental data.