N. J. Allen

Measurement of the Tau Teutrino Helicity at SLD

N. J. Allen

Reflex activation on arousal from sleep: An investigation of factors that may modulate its intensity

J Trinder, Katie Anson, D Kleverlaan, N. J. Allen et autres

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)

Study of the structure of e{sup +}e{sup {minus}}{r_arrow}b{bar b}g events and first limits on the anomalous chromomagnetic coupling of the {ital b} quark

R. Steiner, H. Yuta, A. C. Benvenuti, N. De Groot et autres

The structure of e{sup +}e{sup {minus}}{r_arrow}b{bar b}g events was studied using Z{sup 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 …

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 …

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

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 A[sub b] and A[sub c] at the Z[sup 0] Pole Using a Lepton Tag

R. Steiner, H. Yuta, A. C. Benvenuti, N. J. Allen et autres

The parity violation parameters A[sub b] and A[sub c] of the Zb[ovr b] and Zc[ovr c] couplings have been measured directly, using the polar angle dependence of the Z[sup 0] -pole polarized cross sections. Bottom and charmed hadrons were tagged via semileptonic …

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)

Direct Measurement of A{sub b} in Z{sup 0} Decays Using Charged Kaon Tagging

R. Steiner, H. Yuta, A. C. Benvenuti, N. J. Allen et autres

We present a direct measurement of the parity-violating asymmetry A{sub b} in the Z{sup 0} to b{ovr b} coupling using a new technique to distinguish the b and {ovr b} quarks using charged kaons from B decays. The Z{sup 0} bosons are …

Measurement of the probability for gluon splitting into b anti-b in Z0 decays

Kenji Abe, P. F. Jacques, H. Hwang, T. W. Reeves et autres

We present a preliminary measurement of the rate of gluon splitting into bottom quarks, g -> b bbar, in hadronic Z0 decays collected by SLD between 1996 and 1998. The analysis was performed by looking for secondary bottom production in 4-jet events …

Production of π+, K+, K0, K*0, φ, p and Λ0 in hadronic Z0 decays

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

We have measured the differential production cross sections as a function of scaled momentum ${x}_{p}{=2p/E}_{\mathrm{c}.\mathrm{m}.}$ of the identified hadron species ${\ensuremath{\pi}}^{+},$ ${K}^{+},$ ${K}^{0},$ ${K}^{*0},$ $\ensuremath{\varphi}, p$, ${\ensuremath{\Lambda}}^{0},$ and of the corresponding antihadron species in inclusive hadronic ${Z}^{0}$ decays, as well as separately …

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

A Preliminary measurement of the gluon splitting rate into b anti-b pairs in hadronic Z0 decays

Toshinori Abe, P. F. Jacques, H. Hwang, T. W. Reeves et autres