The Feynman–Hellmann theorem is used to show that vector meson energy eigenvalues are monotonically decreasing functions of the reduced masses of their constituent quarks. The experimental meson masses are used to put constraints on the values of quark masses and to predict the masses of some as yet undiscovered mesons. The mass of the B * c meson is predicted to be 6320 ± 10 MeV, and, with les...

CKM03 WG2 Conveners' Report: V td and V ts , B– ¯ B mixing, radiative penguin and rare (semi)leptonic decays We introduce the Working Group 2 proceedings contributions from the 2nd workshop on the CKM Unitarity Triangle and note their connection to the proceedings of the first workshop. The topic of WG 2 was the determination of the CKM matrix elements V td and V ts from B-¯ B mixing, radiative...

We review the perturbative QCD formalism for exclusive heavy meson decays, concentrating on the three-scale factorization theorem for nonleptonic processes. The formalism is then extended to the radiative decay B → Kγ, which occurs through penguin diagrams. It is observed that the contributions from the operators other than the penguin one b → sγ are not negligible. From the best fit to the exp...

We present the proceedings of the lectures given at the 2008 Helmholtz International Summer School Heavy Quark Physics at the Bogoliubov Laboratory of Theoretical Physics in Dubna. In two lectures we present recent results from the existing B-factories experiments, Belle and BaBar. The discussed topics include short phenomenological motivation, experimental methods and results on B meson oscill...

With U-spin symmetry, b → s and b → d penguin decays could be a subtle probe of CP violating new physics contributions. We show that, for B → PP (P stands for a pseudoscalar meson), the U-spin relation is expected to be violated for only one decay pair by assuming that new physics affects only b → s transition processes. We also very shortly discuss the polarizations of two types of U-spin pair...

A vector-vector or vector-axial vector B-meson decay can be characterised by three complex helicity amplitudes, A+, A0 and A−, corresponding to meson helicity states λ = +1, 0 and −1, respectively. The A0 amplitude is expected to dominate due to the (V −A) nature of weak interactions and helicity conservation in strong interactions [1]. Most B decays that arise from tree level b → c transitions...

We study time-reversal~(T) asymmetries in the charmless two-body decays of antitriplet bottom baryons. find that ${\bf B}_b \to {\bf B}_n P$ with = (\Xi _b ^- , \,\Xi_b^0, \,\Lambda_b)$ and B}_n(P)$ a octet baryon (pseudoscalar meson), positive negative helicity amplitudes are both sizable, resulting large T-violating effects. Particularly, T-odd parameters, $\beta_w$, for color-enhanced channe...

We compare a nonfactorizable charming-loop correction to an exclusive FCNC $B$ decay given in terms of the three-particle Bethe-Salpeter amplitude (3BS) meson, $⟨0|\overline{q}(x){G}_{\ensuremath{\mu}\ensuremath{\nu}}(z)b(0)|B(p)⟩$, with corresponding $B$-meson semileptonic form factor. In spite certain similarities, these two corrections are shown have substantial differences: form-factor is d...

We predict several new exotic doubly heavy hadronic resonances, inferring from the observed exotic bottomoniumlike and charmoniumlike narrow states X(3872), Z_{b}(10610), Z_{b}(10650), Z_{c}(3900), and Z_{c}(4020/4025). We interpret the binding mechanism as mostly molecularlike isospin-exchange attraction between two heavy-light mesons in a relative S-wave state. We then generalize it to other ...

I describe a model for heavy meson decays based on an effective quark-meson lagrangian. I consider the heavy mesons S with spin and parity J = (1, 0), H with J = (1, 0) and T μ with J = (2, 1), i.e. S and P wave heavy-light mesons. The model is constrained by the known symmetries of QCD in the mQ → ∞ for the heavy quarks and chiral symmetry in the light quark sector. Using a very limited number...