{Sigma}{sub b,c} to Nucleon Transitions in Light Cone QCD Sum Rules

Journal Article · Mon May 23 04:00:00 EDT 2011 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3575036· OSTI ID:21513328

Bayar, M ^[1]; Azizi, K ^[2]; Zeyrek, M T ^[3]

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1. Department of Physics, Kocaeli University, 41380 Izmit (Turkey)
2. Physics Division, Faculty of Arts and Sciences, Dogus University, Acibadem-Kadikoey, 34722 Istanbul (Turkey)
3. Physics Department, Middle East Technical University, 06531, Ankara (Turkey)

The loop level flavor changing neutral current transitions of the {Sigma}{sub b}{yields}nl{sup +}l{sup -} and {Sigma}{sub c}{yields}pl{sup +}l{sup -} are investigated in the light cone QCD sum rules approach. Using the most general form of the interpolating current for {Sigma}{sub Q}, Q = b or c, the transition form factors are calculated using two sets of input parameters entering the nucleon distribution amplitudes, namely, QCD sum rules and lattice QCD inputs. The obtained results are used to estimate the decay rates of the corresponding transitions. Since such type transitions occurred at loop level in the standard model, they can be considered as good candidates to search for the new physics effects beyond the SM.

• OSTI ID: 21513328
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 1343; ISSN APCPCS; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ALGEBRAIC CURRENTS
AMPLITUDES
BARYONS
COMPOSITE MODELS
CURRENTS
DECAY
DIMENSIONLESS NUMBERS
DISTRIBUTION
ELECTROMAGNETIC FORM FACTORS
ELEMENTARY PARTICLES
EQUATIONS
FERMIONS
FIELD THEORIES
FLAVOR MODEL
FORM FACTORS
GRAND UNIFIED THEORY
HADRONS
LIGHT CONE
MATHEMATICAL MODELS
MATHEMATICS
NEUTRAL CURRENTS
NUCLEONS
NUMERICAL ANALYSIS
PARTICLE DECAY
PARTICLE MODELS
PARTICLE PROPERTIES
QUANTUM CHROMODYNAMICS
QUANTUM FIELD THEORY
QUARK MODEL
SPACE-TIME
STANDARD MODEL
SUM RULES
UNIFIED GAUGE MODELS