Autor:	LÜ, CAI-DIAN
Předmět:	QUANTUM chromodynamics RADIOACTIVE decay DECAY schemes (Radioactivity) SYMMETRY (Physics) QUANTUM perturbations
Zdroj:	Modern Physics Letters A; 3/28/2007, Vol. 22 Issue 7-10, p615-621, 7p, 2 Charts, 1 Graph
Abstrakt:	The perturbative QCD approach is based on kT factorization, including the Sudakov form factors so that to avoid the endpoint singularity. In this approach, we calculate the charmless B decays like B → ππ decays etc. to produce the right number of branching ratios and also CP asymmetry parameters. For final states with at least one charmed meson, like B → Dπ decays, our results also agree with the experiments. [ABSTRACT FROM AUTHOR]
Databáze:	Complementary Index
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