AD5 elliptic fibration is a fibration whose generic fiber is modeled by the complete intersection of two quadric surfaces in P3. They provide simple examples of elliptic fibrations admitting a richâ€¦ (More)

The branching fractions of the exclusive decays B0-->K(*0)gamma and B+-->K(*+)gamma are measured from a sample of (22.74+/-0.36)x10(6) BB decays collected with the BABAR detector at the PEP-IIâ€¦ (More)

We present a formula for computing proper pushforwards of classes in the Chow ring of a projective bundle under the projection Ï€ : P(E )â†’ B, for B a non-singular compact complex algebraic variety ofâ€¦ (More)

We present measurements of time-dependent CP-violating asymmetries in neutral B decays to several CP eigenstates. The measurement uses a data sample of 23x10(6) Upsilon(4S)-->BbarB decays collectedâ€¦ (More)

We compute all Hirzebruch invariants Ï‡q for D5, E6, E7 and E8 elliptic fibrations of every dimension. A single generating series Ï‡(t, y) is produced for each family of fibrations such that theâ€¦ (More)

We investigate aspects of certain stringy invariants of singular elliptic fibrations which arise in engineering Grand Unified Theories in F-theory. In particular, we exploit the small resolutions ofâ€¦ (More)

The production of J/psi mesons in continuum e(+)e(-) annihilations has been studied with the BABAR detector at energies near the Upsilon(4S) resonance. The mesons are distinguished from J/psiâ€¦ (More)

We present the results of searches for B decays to charmless two-body final states containing eta(') or omega mesons, based on 20.7 fb(-1) of data collected with the BABAR detector. We find theâ€¦ (More)