Determination of f(0) - a(0)(0) mixing angle from QCD sum rules
EUROPEAN PHYSICAL JOURNAL A, cilt.54, sa.9, 2018 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 54 Sayı: 9
- Basım Tarihi: 2018
- Doi Numarası: 10.1140/epja/i2018-12584-4
- Dergi Adı: EUROPEAN PHYSICAL JOURNAL A
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Açık Arşiv Koleksiyonu: AVESİS Açık Erişim Koleksiyonu
- Orta Doğu Teknik Üniversitesi Adresli: Evet
Özet
By assuming that the f(0) and a(0)(0) mesons are mixed states of the two-quark-tetraquark, the mixing angle between them is estimated within the QCD sum rules method, and it is obtained that the mixing angle is (6.03 +/- 0.08)degrees. Our prediction on the mixing angle can be checked in further experiments which can shed light on choosing the "right" structure of f(0) and a(0)(0) mesons.