Associative charm photoproduction with circularly polarized photons
PHYSICS LETTERS B, cilt.541, ss.101-107, 2002 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 541
- Basım Tarihi: 2002
- Doi Numarası: 10.1016/s0370-2693(02)02190-1
- Dergi Adı: PHYSICS LETTERS B
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Sayfa Sayıları: ss.101-107
- Açık Arşiv Koleksiyonu: AVESİS Açık Erişim Koleksiyonu
- Orta Doğu Teknik Üniversitesi Adresli: Hayır
Özet
We calculate the asymmetries for the processes gamma + p --> Lambda(c)(+) (Sigma(c)(+)) + (D-0) over bar and gamma + p --> Lambda(c)(+)(Sigma(c)(+)) + (D*) over bar, induced by circularly polarized photons on a polarized proton target in the framework of an effective Lagrangian model. We found large and positive values for the asymmetry induced by the z-component of the proton polarization, in a wide energy region, from threshold up to E-gamma = 70 GeV In the case of pseudoscalar meson photoproduction, the predictions are qualitatively model-independent. For D*-photoproduction, there is a strong dependence of the asymmetries on NLambda(c)D(D*)-coupling constants. (C) 2002 Elsevier Science B.V. All rights reserved.