We study the two-body and three-body charmful baryonic B decays: B 0 → Λc p̄ and B → Λc p̄ π(ρ). The factorizable W -exchange contribution to B 0 → Λc p̄ is negligible. Applying the bag model to evaluate the baryon-to-baryon weak transition matrix element, we find B(B → Λc p̄) <∼ 1.1 × 10−5|gB0pΣ+b /6| 2 with gB0pΣ+ b being a strong coupling for the decay Σ+b → B 0 p and hence the predicted branchi...

The vertex H±W∓h0, involving the gauge bosons W, the charged (H) and the lightest neutral (h0) Higgs bosons, arises within the context of many extensions of the SM, and it can be used to probe the Higgs sector of such extensions via the decay H → W h0. We discuss the strength of this vertex for an extension of the MSSM with an additional complex Higgs triplet. By using this model, we find regio...

Standard Model fits are performed on the most recent leptonic and b quark Z decay data from LEP and SLD, and FERMILAB data on top quark production, to obtain m t and m H. Poor fits are obtained, with confidence levels ≃ 2%. Removing the b quark data improves markedly the quality of the fits and reduces the 95% CL upper limit on m H from 169 GeV to 110 GeV.

This is a quick review of CP non-conservation in B physics. Several methods are described for testing the Kobayashi-Maskawa single phase origin of CP violation in B decays, pointing out some limitations due to hadronic uncertainties. A few characteristic signatures of new physics in B decay asymmetries are listed. Invited talk given at the 1999 Chicago Conference on Kaon Physics Chicago, IL, Ju...

We provide a new estimate of the long-distance component to the radiative transition B → ργ. Our mechanism involves the soft-scattering of on-shell hadronic products of nonleptonic B decay, as in the chain B → ρρ → ργ. We employ a phenomenological fit to scattering data to estimate the effect. The specific intermediate states considered here modify the B → ργ decay rate at roughly the 5 → 8% le...

We propose a new method of extracting Vbu from measurements of Semileptonic B decay which has much less theoretical uncertainties than conventional methods. E-mail address: [email protected]

The answer may be yes. A discrete model of energy-conserved wavefunction collapse is proposed. It is shown that the model is consistent with existing experiments and our macroscopic experience.

“New Physics" (NP) refers to physics beyond the “Standard Model," the paradigm that we have constructed to explain our current high energy physics data [1]. We know, however, that NP is required to explain certain global phenomena including the Baryon asymmetry of the Universe, without which we could not exist, or the “Dark Matter," found first by Zwicky studying rotation curves of galaxies [2]...

Much progress in B physics has been achieved over the past few years. Both KEK and SLAC have achieved their corresponding design luminosity goals, and are working hard to surpass them. The B → ψKS asymmetry has been discovered. The direct CP asymmetry has been discovered in the B → Kπ decay. According to the Belle result, the B → ππ CP asymmetry shows direct CP violation. First measurements of ...

We present quenched results for B meson decay constants using NRQCD b quarks and O(a) tadpole improved clover light quarks. For the first time, one-loop matching factors between lattice and continuum currents are incorporated through O(α/M) taking operator mixing fully into account. This includes an important O(α a) discretization correction to the heavy-light axial vector current. We find f B ...