B{sub s(d)}-B{sub s(d)} mixing constraints on flavor changing decays of t and b quarks
- Institut fuer Theoretische Physik, Universitaet Tuebingen, Kepler Center for Astro and Particle Physics, Auf der Morgenstelle 14, D-72076 Tuebingen (Germany)
- Departamento de Fisica, Instituto de Estudios Avanzados en Ciencias e Ingenieria y Centro Cientifico Tecnologico de Valparaiso (CCTVal), Universidad Tecnica Federico Santa Maria, Casilla 110-V, Valparaiso (Chile)
We study those dimension 6 effective operators which generate flavor-changing quark-gluon transitions of the third generation quarks, with t{yields}g+u(c) and b{yields}g+d(s), and which could be of interest for LHC experiments. We analyze the contribution of these operators to B{sub s(d)}-B{sub s(d)} mixing and derive limits on the corresponding effective couplings from the existing experimental data. The standard model gauge invariance relates these couplings to the couplings controlling t{yields}g+u(c). On this basis we derive upper limits for the branching ratios of these processes. We further show that forthcoming LHC experiments might be able to probe the studied operators and the physics beyond the standard model related to them.
- OSTI ID:
- 21432322
- Journal Information:
- Physical Review. D, Particles Fields, Vol. 82, Issue 7; Other Information: DOI: 10.1103/PhysRevD.82.075012; (c) 2010 American Institute of Physics; ISSN 0556-2821
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
B QUARKS
BRANCHING RATIO
CERN LHC
COUPLING
FLAVOR MODEL
GAUGE INVARIANCE
GLUONS
MIXING
PARTICLE DECAY
QUARK-GLUON INTERACTIONS
STANDARD MODEL
T QUARKS
ACCELERATORS
BEAUTY PARTICLES
BOSONS
COMPOSITE MODELS
CYCLIC ACCELERATORS
DECAY
DIMENSIONLESS NUMBERS
ELEMENTARY PARTICLES
FERMIONS
FIELD THEORIES
GRAND UNIFIED THEORY
INTERACTIONS
INVARIANCE PRINCIPLES
MATHEMATICAL MODELS
PARTICLE INTERACTIONS
PARTICLE MODELS
POSTULATED PARTICLES
QUANTUM FIELD THEORY
QUARK MODEL
QUARKS
STORAGE RINGS
SYNCHROTRONS
TOP PARTICLES
UNIFIED GAUGE MODELS