Interpretation of the newly discovered Omega(2012)

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Aliev T., AZİZİ K., SARAÇ OYMAK Y., SUNDU PAMUK H.

PHYSICAL REVIEW D, cilt.98, sa.1, 2018 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 98 Sayı: 1
  • Basım Tarihi: 2018
  • Doi Numarası: 10.1103/physrevd.98.014031
  • Dergi Adı: PHYSICAL REVIEW D
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Orta Doğu Teknik Üniversitesi Adresli: Evet

Özet

Very recently, Belle Collaboration reported observation of a narrow state called Omega(2012) with mass 2012.4 +/- 0.7(stat) +/- 0.6(syst) MeV and width 6.4(-2.0)(+2.5)(stat) +/- 1.6(syst) MeV. We calculate the mass and residue of the Omega(2012) state by employing the QCD sum rule method. Comparison of the obtained results with the experimental data allows us to interpret this state as a 1P orbital excitation of the ground state Omega baryon, i.e., with quantum numbers J(P) = 3-\2.