R. J. Cence

A measurement of the holographic minimum-observable beam branching ratio in the FERMILAB 15-ft bubble chamber

M. Aderholz, M. M. Aggarwal, H. Akbari, P. P. Allport et autres

de, in, us, gb, be, fr, ch, au (code pays fourni par la source)

Neutral strange particle production in neutrino and antineutrino charged-current interactions on neon

D. DeProspo, M. Kalelkar, M. Aderholz, H. Akbari et autres

A study has been made of neutral strange particle production in ${\ensuremath{\nu}}_{\mathrm{\ensuremath{\mu}}}$Ne and \ensuremath{\nu}${\mathrm{\ifmmode\bar\else\textasciimacron\fi{}}}_{\mathrm{\ensuremath{\mu}}}$Ne charged-current interactions at a higher energy than any previous study. The experiment was done at the Fermilab Tevatron using the 15-ft. bubble chamber, and the data sample consists …

gb, ch, de (code pays fourni par la source)

Coherent production of single pions and ρ mesons in charged-current interactions of neutrinos and antineutrinos on neon nuclei at the Fermilab Tevatron

S. Willocq, M. Aderholz, H. Akbari, P. P. Allport et autres

The coherent production of $\ensuremath{\pi}$ and $\ensuremath{\rho}$ mesons in ${\ensuremath{\nu}}_{\ensuremath{\mu}} ({\overline{\ensuremath{\nu}}}_{\ensuremath{\mu}})$-neon charged-current interactions has been studied using the Fermilab 15-foot bubble chamber filled with a heavy Ne-${\mathrm{H}}_{2}$ mix and exposed to the Tevatron quadrupole triplet (anti)neutrino beam. The ${\ensuremath{\nu}}_{\ensuremath{\mu}} ({\overline{\ensuremath{\nu}}}_{\ensuremath{\mu}})$ beam had …

us, de, gb, in, be, ch (code pays fourni par la source)

Beam tests of the DØ uranium liquid argon end calorimeters

S. Abachi, Seung-Chan Ahn, M. Abolins, H. Aihara et autres

us, ru, fr (code pays fourni par la source)

Measurement of the charged multiplicity of events containing bottom hadrons at Ec.m.=91 GeV

B. A. Schumm, D. S. Koetke, C. Adolphsen, J. Alexander et autres

Using an impact-parameter tag to select an enriched sample of ${Z}^{0}\ensuremath{\rightarrow}b\overline{b}$ events, we have measured the difference between the average charged multiplicity of $b\overline{b}$ and all hadronic ${Z}^{0}$ decays to be 2.1\ifmmode\pm\else\textpm\fi{}1.8(stat)\ifmmode\pm\else\textpm\fi{}0.6(syst) tracks per event. The resulting total (nonleading) charged multiplicity for …

us (code pays fourni par la source)

Measurement of thebb¯fraction in hadronic Z0 decays with precision vertex detectors

R. G. Jacobsen, D. S. Koetke, C. Adolphsen, D. Fujino et autres

We have measured the fraction of bb\ifmmode\bar\else\textasciimacron\fi{} events in hadronic ${\mathit{Z}}^{0}$ decays, ${\mathit{R}}_{\mathit{b}\mathit{b}\mathrm{\ifmmode\bar\else\textasciimacron\fi{}}}$, using the vertex detector system of the Mark II detector at the SLAC Linear Collider. We tag bb\ifmmode\bar\else\textasciimacron\fi{} events by requiring the coincidence of three or more tracks with …

Search for elastic nondiagonal lepton-pair production in e+ e− annihilation at √s=29 GeV

Juan José Gómez-Cadenas, C. A. Heusch, G. S. Abrams, C. Adolphsen et autres

We have searched for the annihilation of ${\mathit{e}}^{+}$${\mathit{e}}^{\mathrm{\ensuremath{-}}}$ into the exclusive channels ${\mathit{e}}^{\ifmmode\pm\else\textpm\fi{}}$${\mathrm{\ensuremath{\tau}}}^{\ensuremath{\mp}}$ and ${\mathrm{\ensuremath{\mu}}}^{\ifmmode\pm\else\textpm\fi{}}$${\mathrm{\ensuremath{\tau}}}^{\ensuremath{\mp}}$ at \ensuremath{\surd}s =29 GeV, using 226 and 133 ${\mathrm{pb}}^{\mathrm{\ensuremath{-}}1}$, respectively, of data taken with the Mark II detector at the SLAC storage ring PEP. The resulting candidate …

us (code pays fourni par la source)

Measurement of the total hadronic cross section in e+e− annihilation at s=29 GeV

C. von Zanthier, W. De Boer, G. Grindhammer, J. Hylen et autres

A precise measurement of the ratio $R$ of the total cross section ${e}^{+}{e}^{\ensuremath{-}}\ensuremath{\rightarrow}\mathrm{hadrons}$ to the pointlike cross section ${e}^{+}{e}^{\ensuremath{-}}\ensuremath{\rightarrow}{\ensuremath{\mu}}^{+}{\ensuremath{\mu}}^{\ensuremath{-}}$ at a center-of-mass energy of 29.0 GeV is presented. The data were taken with the upgraded Mark II detector at the SLAC storage …

Measurement of the total hadronic cross section in e+e- annihilation at ss =29 GeV

C. von Zanthier, Wim P.H. de Boer, G. Grindhammer, J. Hylen et autres

Holography of particle tracks in the Fermilab 15-foot bubble chamber

H. H. Bingham, J. Lys, L. Verluyten, S. Willocq et autres

us, be, ch, gb, de (code pays fourni par la source)

Searches for supersymmetric particles produced inZ-boson decay

T. Barklow, G. S. Abrams, C. Adolphsen, D. A. Averill et autres

We have searched for supersymmetric particles in 528 Z decays with the Mark II detector at the SLAC Linear Collider. We place 95%-confidence-level lower mass limits on degenerate squarks, nondegenerate up-type squarks, nondegenerate down-type squarks, charginos, pair-produced unstable neutralinos, and neutralinos from …

Direct search for pair production of heavy stable charged particles inZdecays

E. Soderstrom, J. A. McKenna, G. S. Abrams, C. Adolphsen et autres

A search for pair production of stable charged particles from Z decay has been performed with the Mark II detector at the SLAC Linear Collider. Particle masses are determined from momentum, ionization energy loss, and time-of-flight measurements. A limit excluding pair production …

us (code pays fourni par la source)