Precision physics with B{sub s}{sup 0}{yields}J/{psi}{phi} at the LHC: The quest for new physics
- Theory Division, Department of Physics, CERN, CH-1211 Geneva 23 (Switzerland)
CP-violating effects in the time-dependent angular distribution of the B{sub s}{sup 0}{yields}J/{psi}[{yields}l{sup +}l{sup -}]{phi}[{yields}K{sup +}K{sup -}] decay products play a key role for the search of new physics. The hadronic standard-model uncertainties are related to doubly Cabibbo-suppressed penguin contributions and are usually assumed to be negligibly small. In view of recent results from the Tevatron and the quickly approaching start of the data taking at the LHC, we have a critical look at the impact of these terms, which could be enhanced through long-distance QCD phenomena, and explore the associated uncertainty for the measurement of the CP-violating B{sub s}{sup 0}-B{sub s}{sup 0} mixing phase. We point out that these effects can actually be controlled by means of an analysis of the time-dependent angular distribution of the B{sub s}{sup 0}{yields}J/{psi}[{yields}l{sup +}l{sup -}]K*{sup 0}[{yields}{pi}{sup +}K{sup -}] decay products and illustrate this through numerical studies. Moreover, we discuss SU(3)-breaking effects, which limit the theoretical accuracy of our method, and suggest internal consistency checks of SU(3)
- OSTI ID:
- 21254688
- Journal Information:
- Physical Review. D, Particles Fields, Vol. 79, Issue 1; Other Information: DOI: 10.1103/PhysRevD.79.014005; (c) 2009 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2821
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
ACCURACY
ANGULAR DISTRIBUTION
B S MESONS
CERN LHC
CP INVARIANCE
DAUGHTER PRODUCTS
FERMILAB TEVATRON
HADRONS
J PSI-3097 MESONS
KAONS MINUS
KAONS PLUS
MESONS
NUMERICAL ANALYSIS
PARTICLE DECAY
PIONS PLUS
QUANTUM CHROMODYNAMICS
SIMULATION
STANDARD MODEL
SU-3 GROUPS
TIME DEPENDENCE