{kappa}K{sup +{pi}-} vertex in light cone QCD sum rules

Journal Article · Sat May 01 04:00:00 EDT 2010 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.81.094009· OSTI ID:21409933

Baytemir, G ^[1]; Sarac, Y ^[1]; Yilmaz, O ^[2]

---

1. Electrical Electronics Engineering Department, Atilim University, 06836 Ankara (Turkey)
2. Physics Department, Middle East Technical University, 06531 Ankara (Turkey)

In this work we study the {kappa}K{sup +{pi}-} vertex in the framework of light cone QCD sum rules. We predict the coupling constant g{sub {kappa}K}{sup +}{sub {pi}}{sup -} to be g{sub {kappa}K}{sup +}{sub {pi}}{sup -}=(6.0{+-}1.0) GeV and estimate the scalar f{sub 0}-{sigma} mixing angle from the experimental ratio g{sup 2}({kappa}{yields}K{pi})/g{sup 2}({sigma}{yields}{pi}{pi}).

• OSTI ID: 21409933
• Journal Information: Physical Review. D, Particles Fields, Journal Name: Physical Review. D, Particles Fields Journal Issue: 9 Vol. 81; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BOSONS
COUPLING CONSTANTS
ELEMENTARY PARTICLES
ENERGY RANGE
EQUATIONS
FIELD THEORIES
GEV RANGE
GEV RANGE 01-10
HADRONS
KAONS
KAONS PLUS
LIGHT CONE
MESONS
PIONS
PIONS MINUS
PSEUDOSCALAR MESONS
QUANTUM CHROMODYNAMICS
QUANTUM FIELD THEORY
SPACE-TIME
STRANGE MESONS
STRANGE PARTICLES
SUM RULES
WEINBERG ANGLE