String Splitting and Strong Coupling Meson Decay

Journal Article · Fri Apr 14 00:00:00 EDT 2006 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.96.141601· OSTI ID:20775159

Cotrone, A L ^[1]; Martucci, L; Troost, W ^[2]

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1. Departament Estructura i Constituents de la Materia, Universitat de Barcelona and IFAE, Diagonal 647, E-08028 Barcelona (Spain)
2. Institute for Theoretical Physics, Katholieke Universiteit Leuven, Celestijnenlaan 200D, B-3001 Leuven (Belgium)

We study the decay of high spin mesons using the gauge-string theory correspondence. The rate of the process is calculated by studying the splitting of a macroscopic string intersecting a D-brane. The result is applied to the decay of mesons in N=4 super Yang-Mills theory with a small number of flavors and in a gravity dual of large N QCD. In QCD the decay of high spin mesons is found to be heavily suppressed in the regime of validity of the supergravity description.

• OSTI ID: 20775159
• Journal Information: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 14 Vol. 96; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
FLAVOR MODEL
MESONS
PARTICLE DECAY
QUANTUM CHROMODYNAMICS
QUANTUM GRAVITY
SPIN
STRING MODELS
STRONG-COUPLING MODEL
SUPERGRAVITY
SUPERSYMMETRY
YANG-MILLS THEORY