W. W. Ash

Psychiatric and medical adverse events for kidney transplant recipients with lithium induced kidney disease

Paula C. Zimbrean, Richard N. Formica, W. W. Ash, Dan J. Lettieri et autres

us (code pays fourni par la source)

New final focus system for the SLAC Linear Collider

N. Toge, W. W. Ash, H. R. Band, A.O. Bazarko et autres

The final focus system of the SLC (Stanford Linear Collider) has been upgraded by replacing the final quadrupole magnets with higher-gradient superconducting magnets positioned closer to the interaction point. The parameters of the new system have been chosen to be compatible with …

us (code pays fourni par la source)

Search for charmless hadronic decays of B mesons with the SLAC SLD detector

Kenji Abe, Koya Abe, K. Abe, Ilke Adam et autres

Based on a sample of approximately 500 000 hadronic ${Z}^{0}$ decays accumulated between 1993 and 1998, the SLD experiment has set limits on 24 fully charged two-body and quasi-two-body exclusive charmless hadronic decays of ${B}^{+},$ ${B}^{0},$ and ${B}_{s}^{0}$ mesons. The precise tracking …

jp, us, it, gb, ru, ca (code pays fourni par la source)

Direct Measurement of Ab and Ac at the Z0 Pole Using a Lepton Tag

Kenji Abe, Koya Abe, K. Abe, Ilke Adam et autres

The parity violation parameters ${A}_{b}$ and ${A}_{c}$ of the $\mathrm{Zb}\overline{b}$ and $\mathrm{Zc}\overline{c}$ couplings have been measured directly, using the polar angle dependence of the ${Z}^{0}$-pole polarized cross sections. Bottom and charmed hadrons were tagged via semileptonic decays. Both the muon and electron …

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Study of the structure of e+e−→bb¯g events and first limits on the anomalous chromomagnetic coupling of thebquark

Kenji Abe, Koya Abe, K. Abe, Ilke Adam et autres

The structure of ${e}^{+}{e}^{\ensuremath{-}}\ensuremath{\rightarrow}b\overline{b}g$ events was studied using ${Z}^{0}$ decays recorded in the SLC Large Detector experiment at SLAC. Three-jet final states were selected and the charge-coupled device-based vertex detector was used to identify two of the jets as b or $\overline{b}.$ …

jp, us, gb, ru, it, ca (code pays fourni par la source)

Direct Measurement of Ab in Z0 Decays Using Charged Kaon Tagging

Kenji Abe, Koya Abe, K. Abe, Ilke Adam et autres

We present a direct measurement of the parity-violating asymmetry ${A}_{b}$ in the ${Z}^{0}$ to $b\overline{b}$ coupling using a new technique to distinguish the $b$ and $\overline{b}$ quarks using charged kaons from $B$ decays. The ${Z}^{0}$ bosons are produced in ${e}^{+}{e}^{\ensuremath{-}}$ collisions at …

jp, us, gb, ru, it (code pays fourni par la source)

Improved test of the flavor independence of strong interactions

K. Abe, T. Abe, Ilke Adam, T. Akagi et autres

We present an improved comparison of the strong coupling of the gluon to light ${(q}_{l}=u+d+s),$ c, and b quarks, determined from multijet rates in flavor-tagged samples of hadronic ${Z}^{0}$ decays recorded with the SLC Large Detector at the SLAC Linear Collider between …

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Direct Measurement of Parity Violation in the Coupling of Z0 Bosons to b Quarks Using a Mass Tag and Momentum-Weighted Track Charge

K. Abe, Ilke Adam, T. Akagi, N. J. Allen et autres

We present a direct measurement of the parity-violation parameter ${A}_{b}$ using a self-calibrating track-charge technique. In the SLAC Linear Collider Large Detector (SLD) experiment we observe hadronic decays of ${Z}^{0}$ bosons produced in collisions between longitudinally polarized electrons and unpolarized positrons at …

jp, no, us, gb, it (code pays fourni par la source)

Measurement of Rb Using a Vertex Mass Tag

K. Abe, T. Akagi, N. J. Allen, W. W. Ash et autres

We report a new measurement of ${R}_{b}\phantom{\rule{0ex}{0ex}}=\phantom{\rule{0ex}{0ex}}{\ensuremath{\Gamma}}_{{Z}^{0}\ensuremath{\rightarrow}b\overline{b}}/{\ensuremath{\Gamma}}_{{Z}^{0}\ensuremath{\rightarrow}\mathrm{hadrons}}$ using a double tag technique, where the $b$ hemisphere selection is based on the reconstructed mass of the $B$ hadron decay vertex. The measurement was performed using a sample of $130\ifmmode\times\else\texttimes\fi{}{10}^{3}$ hadronic ${Z}^{0}$ events, collected …

jp, it, no, gb, us, ru, kr (code pays fourni par la source)

Measurement of the B hadron energy distribution in Z0 decays

K. Abe, T. Akagi, N. J. Allen, W. W. Ash et autres

We have measured the $B$ hadron energy distribution in ${Z}^{0}$ decays using a sample of semileptonic $B$ decays recorded in the SLD experiment at SLAC. The energy of each tagged $B$ hadron was reconstructed using information from the lepton and a partially …

jp, us, gb, ru, it, kr (code pays fourni par la source)

Direct Measurement of Leptonic Coupling Asymmetries with Polarized Z Bosons

Kazuki ABE, T. Akagi, N. J. Allen, W. W. Ash et autres

We present direct measurements of the ${Z}^{0}$-lepton coupling asymmetry parameters ${A}_{e}$, ${A}_{\ensuremath{\mu}}$, and ${A}_{\ensuremath{\tau}}$, based on a data sample of 12 063 leptonic ${Z}^{0}$ decays collected by the SLD detector. The $Z$ bosons are produced in collisions of beams of polarized ${e}^{\ensuremath{-}}$ …

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Measurement of Leading Particle Effects in Decays of Z0 Bosons into Light Flavors [Phys. Rev. Lett. 78, 3442 (1997)]

K. Abe, T. Akagi, N. J. Allen, W. W. Ash et autres