Since the degree of polarization of the vector particle in semileptonic decay strongly influences the decay width of the particles, it can be used as a measure of Cabibbo-Kobayashi-Maskawa quark-mixing matrix elements. We show that |Vcb| can be determined from the measurement of polarization of vector meson in B̄, B̄c → V lν̄ decay, where V is vector meson. Typeset using REVTEX Present address: Ph...

The BELLE experiment at the asymmetric e+e− (3.5 GeV and 8 GeV) accelerator KEK-B at Tsukuba, Japan, has recorded 152 Million BB meson pairs in 4 years of data taking. In the standard model, the size of CP violation in the B meson system is characterized by a quantity called sin(2φ1), in which φ1 denotes one of the angles in the unitarity triangle. This quantity was determined precisely to be s...

We summarize recent progress in the theoretical description of heavy-flavored-hadron inclusive production at next-to-leading order in the general-mass variable-flavor-number scheme. Specifically, we discuss the influence of finite-mass effects on the determination D-meson fragmentation functions from a global fit to ee annihilation data and on the transverse-momentum distribution of B-meson had...

We re-analyze hadronic decays of B mesons to a pseudoscalar (P ) and a tensor meson (T ), or a vector meson (V ) and a tensor meson, through a b → c transition. We discuss possible large uncertainties to branching ratios (BR’s) of the relevant modes, mainly arising from uncertainties to the hadronic form factors for the B → T transition. The BR’s and CP asymmetries for B → PT and V T decays are...

We estimate the $\Upsilon$, $\eta_b$ and $B^*$ meson mass shifts in symmetric nuclear matter. The interest is, whether strengths of bottomonium-(nuclear matter) charmonium-(nuclear interactions are similar or different. This is because, each ($J/\Psi,\Upsilon$) ($\eta_c,\eta_b$) group usually assumed to have very properties based on heavy charm bottom quark masses. for $\Upsilon$ made using an ...

I summarize recent experimental results on B to charmonium decays. Decays of B meson to final states that include charmonium states play an important role in the study of CP violation at B-factories. The decay modes BCP → J/ψKS, ψ(2S)KS, χc1KS, ηcKS, J/ψKL and J/ψK (K → KSπ ) have been used for sin2φ1 measurements [1] [2] [3] [4] [5]. These two-body decay modes are dominated by the color suppre...

We study the rate for the production of BBπ, where the sign of the charged pion tags the flavor content of the neutral B meson. We estimate this branching ratio, employing the heavy meson chiral effective theory. We find that at center of mass energy of approximately 12 GeV, a B meson pair should be produced as often with and without an accompanying charged pion. We also calculate two pion prod...

Scaling law for the Υ(4S) → B ¯ B and ψ(3770) → D ¯ D decay constants from effective sum rules Abstract Sum rules for exclusive production of heavy meson pairs in e + e − annihilation are used to evaluate the Υ(4S) → B ¯ B and ψ(3770) → D ¯ D decay widths. Infinitely heavy quark limit is discussed, so that scaling law for the quarkonium-meson coupling constant is derived. A value of the B ¯ B p...

We derive light-cone sum rules (LCSRs) for exclusive B-meson decays into light energetic hadrons from correlation functions within soft-collinear effective theory (SCET). In these sum rules the short-distance scale refers to “hard-collinear” interactions with virtualities of order ΛQCDmb. Hard scales (related to virtualities of order mb) are integrated out and enter via external coefficient fun...

We re-analyze hadronic decays of B mesons to a pseudoscalar (P ) and a tensor meson (T ), or a vector meson (V ) and a tensor meson, through a b → c transition. We discuss possible large uncertainties to branching ratios (BR’s) of the relevant modes, mainly arising from uncertainties to the hadronic form factors for the B → T transition. The BR’s and CP asymmetries for B → PT and V T decays are...