Relatore
Behnam Mohammadi
(Urmia University)
Descrizione
I present estimates of the branching fractions in the non-leptonic
charmonium two-body decay rates for $B^0\rightarrow \psi(2S)\pi^0$
decay and the same decays of $B^+\rightarrow \psi(2S)\pi^+$,
$B^0\rightarrow \psi(2S)K^0$ and $B^+\rightarrow \psi(2S)K^+$.
These estimates are based on a generalized factorization approach
making use of leading order (LO) and next-to-leading order (NLO)
contributions. I find that when the large enhancements from the
known NLO contributions by using the QCD factorization approach
are taken into account, the branching ratios are the following:
$Br(B^0\rightarrow \psi(2S)\pi^0)=(1.067\pm0.059)\times10^{-5}$,
$Br(B^+\rightarrow \psi(2S)\pi^+)=(2.134\pm0.0.118)\times10^{-5}$,
$Br(B^0\rightarrow \psi(2S)K^0)=(6.344\pm0.376)\times10^{-4}$ and
$Br(B^+\rightarrow \psi(2S)K^+)=(6.344\pm0.376)\times10^{-4}$,
while the experimental results are $(1.17\pm 0.17)\times 10^{-5}$,
$(2.44\pm 0.30)\times 10^{-5}$, $(6.20\pm 0.50)\times 10^{-4}$ and
$(6.39\pm 0.33)\times 10^{-4}$ respectively. All estimates are in
good agreement with the experimental results.
Autore principale
Behnam Mohammadi
(Urmia University)
