Zobrazeno 21 - 30
of 43
pro vyhledávání: '"Shen, Yue"'
Publikováno v:
Phys.Lett.B686:118-123,2010
$B\to (\pi, \eta, \eta')$ transition form factors are investigated in the covariant light-front approach. With theoretical uncertainties, we find that $B\to (\pi, \eta, \eta')$ form factors at $q^2=0$ are $f^{(\pi, \eta, \eta')}_{+}(0)=(0.245^{+0.000
Externí odkaz:
http://arxiv.org/abs/0911.2875
The existence of a glueball has been a tough work for many years study. Utilizing the well developed QCD theory for $B$ meson decays, we propose a new way to identify whether a scalar glueball existed or not. In the presence of mixing between gluebal
Externí odkaz:
http://arxiv.org/abs/0909.4141
Publikováno v:
J.Phys.G37:085006,2010
We investigate transition form factors of $B$ meson decays into a scalar glueball in the light-cone formalism. Compared with form factors of $B$ to ordinary scalar mesons, the $B$-to-glueball form factors have the same power in the expansion of $1/m_
Externí odkaz:
http://arxiv.org/abs/0908.2216
Publikováno v:
Phys.Rev.D76:074018,2007
We calculate the CP-averaged branching ratios and CP-violating asymmetries of a number of two-body charmless hadronic decays $\bar{B_s^0} \to PP, PV, VV$ in the perturbative QCD (pQCD) approach to leading order in $\alpha_s$ (here $P$ and $V$ denote
Externí odkaz:
http://arxiv.org/abs/hep-ph/0703162
Publikováno v:
Phys.Rev.D73:014011,2006
The $B \to K^{*}\rho$, $ K^{*}\omega$ decays are useful to determine the CKM angle $\phi_3=\gamma$. Their polarization fractions are also interesting since the polarization puzzle of the $B\to \phi K^*$ decay. We study these decays in the perturbativ
Externí odkaz:
http://arxiv.org/abs/hep-ph/0508080
Publikováno v:
J.Phys.G32:101-110,2006
$B_s \to \rho(\omega) K^{\ast}$ are useful to determine the $B_s$ distribution amplitude, as well as constrain the CKM phase angle $\alpha$. We study these decays within the Perturbative QCD (PQCD) picture. In this approach, we calculate factorizable
Externí odkaz:
http://arxiv.org/abs/hep-ph/0506316
Publikováno v:
Phys.Rev.D72:054015,2005
We study the charmless rare decays $B \to K^{\ast} K^{\ast}$ within the Perturbative QCD picture. We calculate not only factorizable and non-factorizable diagrams, but also annihilation ones. Our predictions are the following: The longitudinal polari
Externí odkaz:
http://arxiv.org/abs/hep-ph/0504187
Publikováno v:
Eur.Phys.J.C41:311-317,2005
The rare decay $B^0 \to \phi\phi$ can occur only via penguin annihilation topology in the standard model. We calculate this channel in the perturbative QCD approach. The predicted branching ratio is very small at ($10^{-8}$). We also give the polariz
Externí odkaz:
http://arxiv.org/abs/hep-ph/0501269
Publikováno v:
Journal of High Energy Physics
INSPIRE-HEP
INSPIRE-HEP
We improve QCD calculations of the $B_{d, s} \to \pi, K$ form factors at large hadronic recoil by implementing the next-to-leading-logarithmic resummation for the obtained leading-power light-cone sum rules in the soft-collinear effective theory (SCE
Publikováno v:
INSPIRE-HEP
We compute for the first time the long-distance penguin contribution to the double radiative $B$-meson decays due to the purely hadronic operators acting with the electromagnetic current in the background soft-gluon field from first field-theoretical
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=arXiv_dedup_::3f66e1c14e308276d4b54903d803b94e
http://arxiv.org/abs/2207.02691
http://arxiv.org/abs/2207.02691