QCD factorization for charmless hadronic B{sub s} decays revisited

Journal Article · Tue Dec 01 04:00:00 EST 2009 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.80.114026· OSTI ID:21313481

Cheng, H -Y ^[1]; Chua, C -K ^[2]

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1. Institute of Physics, Academia Sinica, Taipei, Taiwan 115 (China)
2. Department of Physics, Chung Yuan Christian University, Chung-Li, Taiwan 320 (China)

Branching fractions and CP-violating asymmetries of charmless B{sub s}{yields}PP, VP, VV decays (P and V denoting pseudoscalar and vector mesons, respectively) are reexamined in the framework of QCD factorization (QCDF). We take into account subleading power corrections to the penguin annihilation topology and to color-suppressed tree amplitudes that are crucial for resolving the CP puzzles and rate deficit problems with penguin-dominated two-body decays and color-suppressed tree-dominated {pi}{sup 0}{pi}{sup 0} and {rho}{sup 0}{pi}{sup 0} modes in the B{sub u,d} sector. Many of the B{sub s}{yields}h{sub 1}h{sub 2} decays can be related to B{sub d}{yields}h{sub 1}h{sub 2} ones via U-spin or SU(3) symmetry. Some useful model-independent relations can be derived and tested. Mixing-induced CP asymmetries for many of the penguin-dominated decays are predicted to be very small in the standard model. They are sensitive to new physics and offer rich possibilities of new discoveries. Measurements of direct CP-violating asymmetries can be used to discriminate QCDF from other competing approaches such as pQCD and soft-collinear effective theory.

• OSTI ID: 21313481
• Journal Information: Physical Review. D, Particles Fields, Journal Name: Physical Review. D, Particles Fields Journal Issue: 11 Vol. 80; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
AMPLITUDES
ANNIHILATION
ASYMMETRY
B S MESONS
BRANCHING RATIO
COLOR MODEL
CORRECTIONS
CP INVARIANCE
FACTORIZATION
MIXING
PARTICLE DECAY
PIONS NEUTRAL
PSEUDOSCALAR MESONS
QUANTUM CHROMODYNAMICS
SPIN
STANDARD MODEL
SU-3 GROUPS
TWO-BODY PROBLEM
VECTOR MESONS