decay width in QCD sum rules

JM Dias, FS Navarra, M Nielsen, CM Zanetti - Physical Review D—Particles …, 2013 - APS
We identify the recently observed charmoniumlike structure Z c±(3900) as the charged
partner of the X (3872) state. Using standard techniques of QCD sum rules, we evaluate the …

D∗ Dπ and B∗ Bπ form factors from QCD sum rules

FS Navarra, M Nielsen, ME Bracco, M Chiapparini… - Physics Letters B, 2000 - Elsevier
The H∗ Hπ form factor for H= B and D mesons is evaluated in a QCD sum rule calculation.
We study the Borel sum rule for the three point function of two pseudoscalar and one vector …

Meson–baryon couplings from QCD sum rules

T Doi, Y Kondo, M Oka - Physics reports, 2004 - Elsevier
Coupling constants of the pseudoscalar mesons to the octet baryons are calculated in the
QCD sum rule approach. Two-point correlation function of the baryons are evaluated in a …

gNDΛc from QCD sum rules

FS Navarra, M Nielsen - Physics Letters B, 1998 - Elsevier
The NDΛc coupling constant is evaluated in a full QCD sum rule calculation. We study the
Borel sum rule for the three point function of one pseudoscalar one nucleon and one Λc …

Electromagnetic production of kaons near threshold

T Mart - Physical Review C—Nuclear Physics, 2010 - APS
Kaon photo-and electroproduction off a proton near the production threshold are
investigated by utilizing an isobar model. The background amplitude of the model is …

gNKΛ and gNKΣ from QCD sum rules in the γ5σμν structure

ME Bracco, FS Navarra, M Nielsen - Physics Letters B, 1999 - Elsevier
The NKY coupling constant for Y= Λ and Σ is evaluated in a QCD sum rule calculation. We
study the Borel sum rule for the three point function of one pseudoscalar one nucleon and …

Subthreshold and near-threshold K +-meson photoproduction on nuclei

EY Paryev - Physics of Atomic Nuclei, 2000 - Springer
The inclusive K+-meson production in photon-induced reactions in the near-threshold and
subthreshold energy regimes is analyzed for the one-step (γ N→ K+ Y, Y= Λ, Σ) incoherent …

Charmonium–pion cross section from QCD sum rules

FS Navarra, M Nielsen, RSM de Carvalho, G Krein - Physics Letters B, 2002 - Elsevier
The J/ψπ→ D ̄ D∗, DD ̄∗, D ̄∗ D∗ and D ̄ D cross sections as a function of s are
evaluated in a QCD sum rule calculation. We study the Borel sum rule for the four point …

Strong and vertices

K Azizi, Y Saraç, H Sundu - Physical Review D, 2014 - APS
We investigate the strong vertices among the Λ b, nucleon, and B meson as well as the Λ c,
nucleon, and D meson in QCD. In particular, we calculate the strong coupling constants g Λ …

coupling constant in light cone QCD sum rules

K Azizi, M Bayar, A Ozpineci - Physical Review D—Particles, Fields, Gravitation …, 2009 - APS
The strong coupling constants g Σ Q Λ Q π (Q= b and c) are studied in the framework of the
light cone QCD sum rules using the most general form of the baryonic currents. The …