The CKM suppressed  decays in the perturbative QCD approach

doi:10.1088/0954-3899/37/1/015002

IOPscience

Journal of Physics G: Nuclear and Particle Physics

Quick search Find article

Quick search

All journals This journal only

Find article
Volume number: Issue number (if known): Article or page number:

Journal of Physics G: Nuclear and Particle Physics Volume 37 Number 1 Create an alert RSS this journal

Hao Zou et al 2010 J. Phys. G: Nucl. Part. Phys. 37 015002 doi:10.1088/0954-3899/37/1/015002

The CKM suppressed $B(B_s) \rightarrow \bar{D}_{(s)}P\hbox{,}\, \bar{D}_{(s)}V\hbox{,} \bar{D}_{(s)}^P\hbox{,}\, \bar{D}_{(s)}^V$ decays in the perturbative QCD approach

Hao Zou¹, Run-Hui Li^1,2, Xiao-Xia Wang¹ and Cai-Dian Lü^1,3

Show affiliations

Tag this article Full text PDF (300 KB)

Abstract References Cited By

Although the two-body charmed decays $B_{(s)} \rightarrow \bar{D}_{(s)}^{(*)}P$ and $\bar{D}_{(s)}^{(*)}V$ , where P (V) denotes a light pseudoscalar (vector) meson, are Cabbibo–Kobayashi–Maskawa (CKM) suppressed compared with the B_(s) → D^(*)_(s)P and D^(*)_(s)V decays, they are important in the CKM angle γ = phi ₃ extraction method. We investigated these decays in the perturbative QCD approach to the leading order of m_D/m_B and Λ_QCD/m_D expansion. We find that the nonfactorizable emission diagrams and the annihilation diagrams are not negligible in many of these channels. The numerical results show that most channels have branching ratios with an order of 10⁻⁶ or 10⁻⁷. The ratio needed for the CKM angle γ extraction is estimated as $r = \frac{|A(B^- \rightarrow \bar{D}^0 K^-)|}{|A(B^- \rightarrow D^0 K^-)|} = 0.092_{-0.003-0.003}^{+0.012+0.003},$ which is too small for the experiments. Some of the $B_{(s)}\rightarrow \bar{D}_{(s)}^*V$ decays have a very large transversely polarized contribution that can reach 80%.

Your last 10 viewed

The CKM suppressed $B(B_s) \rightarrow \bar{D}_{(s)}P\hbox{,}\, \bar{D}_{(s)}V\hbox{,} \bar{D}_{(s)}^*P\hbox{,}\, \bar{D}_{(s)}^*V$ decays in the perturbative QCD approach
Hao Zou et al 2010 J. Phys. G: Nucl. Part. Phys. 37 015002
Tables of hyperonic matter equation of state for core-collapse supernovae
Chikako Ishizuka et al 2008 J. Phys. G: Nucl. Part. Phys. 35 085201
Time–energy uncertainty relations for neutrino oscillations and the Mössbauer neutrino experiment
S M Bilenky et al 2008 J. Phys. G: Nucl. Part. Phys. 35 095003
Analysis of the structure of complex networks at different resolution levels
A Arenas et al 2008 New J. Phys. 10 053039
DDF and Pohlmeyer invariants of (super)string
Urs Schreiber JHEP05(2004)027
Vibrational properties of impurities in semiconductors
S K Estreicher et al 2009 Modelling Simul. Mater. Sci. Eng. 17 084006
Investigations of a THGEM-based imaging detector
M Cortesi et al 2007 JINST 2 P09002
On photon splitting in theories with Lorentz invariance violation
Graciela Gelmini et al JCAP06(2005)012
The birth of the blues: how physics underlies music
J M Gibson 2009 Rep. Prog. Phys. 72 076001
A Newton-CG method for large-scale three-dimensional elastic full-waveform seismic inversion
I Epanomeritakis et al 2008 Inverse Problems 24 034015

Users also read

What's this?

This innovative new feature generates a list of articles 'also read' by other users based on them reading the original article. Article abstracts citations and references are all considered and weighted accordingly. We hope that this will help you find relevant papers for your research.

IOPscience

IOPscience

Journal of Physics G: Nuclear and Particle Physics

The CKM suppressed $B(B_s) \rightarrow \bar{D}_{(s)}P\hbox{,}\, \bar{D}_{(s)}V\hbox{,} \bar{D}_{(s)}^P\hbox{,}\, \bar{D}_{(s)}^V$ decays in the perturbative QCD approach

Users also read

Share

View by subject

Export