122233998
Comparison and summary of tau topological branching fractions
After nearly two decades of work on topological branching fractions, it appears that an experimental consensus is forming. The new world average is 14.54 ± 0.20.
14586426
Review of New Rare Hadronic B-decay Results
We present a new result from Belle and many new results from BABAR for rare hadronic B decays. These include measurements of decays involving baryons, a Dalitz plot analysis of the three-charged-kaon system, many new results for B decays to eta'X and omegaX, and a limit for the decay B-> a_1 rho. Measurements of the vector-vector decays B->rhoKstar and B->omegaKstar are helping to understand the value of the longitudinal polarization fraction for these B->VV decays.
120135663
Studies of tau decay modes with K0 mesons from CLEO
We examine five final states involving K 0 mesons, presenting branching fractions for the decays τ → K 0 πν τ , τ → K 0 ππ 0 ν τ , τ → K 0 Kν τ , τ → K 0 Kπ 0 ν τ , and τ → K s K s hν τ . The mass spectra provide evidence for the dominant role of K * in Kπ decays and K 1 in Kππ modes. We find evidence for a significant K * K contribution to the KKπ decays.
118236755
Recent Results in Charmless Hadronic B Decays from BABAR
We report results from five analyses based on data taken with the BABAR detector at the PEP-II asymmetric e{sup +}e{sup -} collider. Included are branching fraction measurements for many B-meson decays involving {eta}, {eta}{prime}, {omega}, {phi} or a{sub 0} mesons and the final state K{sub s}{sup 0}{pi}{sup +}{pi}{sup -}, and a full angular analysis of the decay B{sup 0} {yields} {phi}K*{sup 0}.
115309491
Experimental results for charmless hadronic B decays
15188676
Calibration and performance of the MARK II drift chamber vertex detector
We have calibrated and studied the performance of the MARK II drift chamber vertex detector with cosmic ray tracks collected with the chamber inside the MARK II detector at the SLC. The chamber achieves 30 {mu}m impact parameter resolution and 500 {mu}m track-pair resolution using CO{sub 2}/C{sub 2}H{sub 6}H{sub 6}(92/8) at 2 atmospheres pressure. The chamber has successfully recorded Z{sup 0} decays at the SLC, and resolved tracks in dense hadronic jets with good efficiency and high accuracy. 5 refs., 13 figs.
121531502
QCD corrections to heavy flavour photoproduction and electroproduction
We investigate the QCD corrections to the total cross sections and single-particle inclusive differential distributions for γ + p → Q(Q) + X and e + p → e + Q(Q) + X. In the latter reaction we assume that the exchanged photon is almost real (Weizsacker-Williams approximation). This requires the calculation of the O(αs) corrections to the photon-parton reaction γ + g → Q + Q including the virtual gluon contributions and the soft and hard gluon radiation in the reaction γ + g → Q + Q + g. The contributions from γ + q(q) → Q + Q + q(q) are also calculated. We give exact results for the O(α2αS2) total cross sections and single particle inclusive differential distribution for b-quark production at HERA. Results for b- and t- production at future ep colliders (the LEP∗LHC option at CERN) are also presented.
120637935
Associated charm production and correlations between multileptons in (anti)neutrino interactions
Associated charm production and decay in (anti)neutrino interactions has often been proposed to explain the (anti)neutrino like-sign dimuon events. We show that a particular phenomenological model of $c\overline{c}$ production and decay is also capable of explaining both the ${\ensuremath{\mu}}^{\ensuremath{-}}{e}^{\ensuremath{-}}$ events seen recently in bubble-chamber experiments and a specific fraction of the neutrino-induced trimuon events. The correlations between these different reaction channels strengthen the conclusion that $c\overline{c}$ pairs are formed in approximately 1% of all deep-inelastic (anti)neutrino interactions.
123056572
Polarized electroproduction of charm
Abstract We discuss the NLO corrections to polarized electroproduction of charmed quarks.
123015361
Electromagnetic production of trimuons in muon scattering: Bethe-Heitler reactions with muon and heavy-lepton pairs
We analyze the Bethe-Heitler production of muon and heavy-lepton pairs using high-energy muon beams on a variety of targets. We give results for coherent production from a nucleus, for incoherent production from individual protons and neutrons, and for deep-inelastic production. Differential distributions are presented for the final leptons and the effects of experimental cuts are considered. This work complements our previous study of trimuon production via muon radiation, Compton radiation, and hadronic final-state interactions.
120439805
Heavy-lepton-cascade interpretation of the neutrino-induced trimuon events
The experimental data on neutrino-induced trimuon production are compared with the results of a cascade model involving two heavy leptons. The agreement between theory and experiment is excellent.