CERN Accelerating science

Hovedsiden > Søkeresultater: Peach, D
Søketips
Avansert søk
Add to Search +
Søk samlinger:
Sorter etter: Vis resultater: Visningsformat:
CERN Document Server 110 elementer funnet  1 - 10nesteslutt  gå til element: Søket tok 0.58 sekunder. 
1.
Precision electroweak measurements on the $Z$ resonance / ALEPH Collaboration
We report on the final electroweak measurements performed with data taken at the Z resonance by the experiments operating at the electron-positron colliders SLC and LEP. The data consist of 17 million Z decays accumulated by the ALEPH, DELPHI, L3 and OPAL experiments at LEP, and 600 thousand Z decays by the SLD experiment using a polarised beam at SLC. [...]
hep-ex/0509008; SLAC-R-774; CERN-PH-EP-2005-041; SLAC-R-774; CERN-L3-304.- Geneva : CERN, 2006 - 302 p. ALEPH Papers - Published in : Phys. Rep. 427 (2006) 257 Fulltext: phep-2005-041 - PDF; arXiv:hep-ex_0509008 - PDF; External link: SLAC Document Server
Detaljert visning - Lignende elementer
2.
Photon structure functions and azimuthal correlations of lepton pairs in tagged $\gamma\gamma$ collisions / L3 Collaboration
Measurements of the QED structure of the photon based on the reaction ee to ee gamma /sup (*)/(P/sup 2/) gamma *(Q/sup 2/) to ee mu mu are discussed. This review is an update of the discussion of the results on the QED structure of the photon and covers the published measurements of the photon structure functions F/sub 2//sup gamma /, F/sub A//sup gamma / and F/sub B//sup gamma / and of the differential cross-section d sigma /dx for the exchange of two virtual photons. [...]
CERN-EP-98-060; CERN-L3-147.- Geneva : CERN, 1998 - Published in : Phys. Lett. B 438 (1998) 363 Fulltext: PDF; - Please contact the library if you need to access this document.
Detaljert visning - Lignende elementer
3.
Measurements of Cross Sections and Forward-Backward Asymmetries at the Z Resonance and Determination of Electroweak Parameters / L3 collaboration
We report on measurements of hadronic and leptonic cross sections and leptonic forward-backward asymmetries performed with the L3 detector in the years $1993-95$.A total luminosity of 103 pb$^{-1}$ was collected at centre-of-mass energies $\sqrt{s} \approx m_\mathrm{Z}$ and $\sqrt{s} \approx m_\mathrm{Z} \pm 1.8$ GeVwhich corresponds to 2.5 million hadronic and 245 thousand leptonic events selected.These data lead to a significantly improved determination of Z parameters.From the total cross sections, combined with our measurements in $1990-92$,we obtain the final results:%%%\begin{eqnarr ay*} m_\mathrm{Z} = 91189.8 \pm 3.1\ \mathrm{MeV} \, , & & \Gamma_\mathrm{Z} = 2502.4 \pm 4.2\ \mathrm{MeV} \, , \\ \Gamma_\mathrm{had} = 1741.1 \pm 3.8\ \mathrm{MeV} \, , & & \Gamma_\ell = 84.14 \pm 0.17\ \mathrm{MeV} \,. \label{eq:Zpara_abstract}\end{eqnarray*}%%%An invisible width of $\Gamma_\mathrm{inv} = 499.1 \pm 2.9$ MeV is derived which in the Standard Model yields for the numberof light neutrino species $N_\nu = 2.978 \pm 0.014$.Adding our results on the leptonic forward-backward asymmetries and thetau polarisation, the effective vector and axial-vector coupling constants of the neutral weak current to charged leptons are determined to be $\bar{g}_{\mathrm{V}}^\ell = -0.0397\pm 0.0017$ and $\bar{g}_{\mathrm{A}}^\ell = -0.50153 \pm 0.00053$.Including our measurements of the Z $\rightarrow \mathrm{b}\bar{\mathrm{b}}$ forward-backward and quark charge asymmetries a value for the effective electroweakmixing angle of $\sin^2\!\overline{\theta}_{\mathrm{W}} = 0.23093 \pm 0.00066$ is derived. [...]
hep-ex/0002046; CERN-EP-2000-022; CERN-EP-2000-022; CERN-L3-202.- Geneva : CERN, 2000 - 97 p. - Published in : Eur. Phys. J. C 16 (2000) 1-40 Fulltext: ep-2000-022 - PDF; arXiv:hep-ex_0002046 - PDF; External link: Preprint - Please contact the library if you need to access this document.
Detaljert visning - Lignende elementer
4.
Search for Charginos with a Small Mass Difference to the Lightest Supersymmetric Particle at $\sqrt{s} = 189 GeV$ / L3 collaboration
A search for charginos nearly mass-degenerate with the lightestsupersymmetric particle isperformed using the 176 {pb$^{-1}$ of data collected at 189 {Ge\kern -0.1em V} in 1998 with the L3detector. Mass differences between the chargino and the lightest supersymmetric particlebelow 4 {Ge\kern -0.1em V} are considered.The presence of a high transverse momentum photon is required to single out the signal from the photon-photon interaction background. [...]
hep-ex/0002043; CERN-EP-2000-018; CERN-EP-2000-018; CERN-L3-201.- Geneva : CERN, 2000 - 19 p. - Published in : Phys. Lett. B 482 (2000) 31-42 Fulltext: ep-2000-018 - PDF; arXiv:hep-ex_0002043 - PDF; External link: Preprint - Please contact the library if you need to access this document.
Detaljert visning - Lignende elementer
5.
Measurement of the Probability of Gluon Splitting into Charmed Quarks in Hadronic Z Decays / L3 Collaboration
We have measured the probability, $\overline{n}_{\rm{g} \rightarrow c\overline{c}}$, of a gluon splitting into a charm-quark pair using 1.7 million hadronic Z decays collected by the L3 detector. Two independent methods have been applied to events with a three-jet topology. [...]
hep-ex/9911016; CERN-EP-99-156; CERN-EP-99-156; CERN-L3-194.- Geneva : CERN, 2000 - 19 p. - Published in : Phys. Lett. B 476 (2000) 243-55 Fulltext: ep-99-156 - PDF; arXiv:hep-ex_9911016 - PDF; External link: DURHAM - Please contact the library if you need to access this document.
Detaljert visning - Lignende elementer
6.
Search for extra dimensions in boson and fermion pair production in $e^{+}e^{-}$ interactions at LEP / L3 Collaboration
Extra spatial dimensions are proposed by recent theories that postulate the scale of gravity to be of the same order as the electroweak scale. A sizeable interaction between gravitons and Standard Model particles is then predicted. [...]
hep-ex/9910056; CERN-EP-99-146; CERN-EP-99-146; CERN-L3-193.- Geneva : CERN, 1999 - 12 p. - Published in : Phys. Lett. B 470 (1999) 281-288 Fulltext: ep-99-146 - PDF; arXiv:hep-ex_9910056 - PDF; External link: Preprint - Please contact the library if you need to access this document.
Detaljert visning - Lignende elementer
7.
Search for neutral higgs bosons of the minimal supersymmetric standard model in $e^{+}e^{-}$ Interactions at $\sqrt{s}= 189$ GeV / L3 Collaboration
A search for the lightest neutral scalar and neutral pseudoscalar Higgs bosons in the Minimal Supersymmetric Standard Model is performed using 176.4 pb$^{-1}$ of integrated luminosity collected by L3 at a center-of-mass energy of 189 GeV. No signal is observed, and the data are consistent with the expected Standard Model background. [...]
hep-ex/9910053; CERN-EP-99-145; CERN-EP-99-145; CERN-L3-192.- Geneva : CERN, 1999 - 19 p. - Published in : Phys. Lett. B 471 (1999) 321-331 Fulltext: ep-99-145 - PDF; arXiv:hep-ex_9910053 - PDF; - Please contact the library if you need to access this document.
Detaljert visning - Lignende elementer
8.
Search for Excited Leptons at $\sqrt{s}$= 189 GeV / L3 Collaboration
A search for excited leptons, $\rm e^*,~\mu^*, ~\tau^*, ~\nu_e^*, ~\nu_{\mu}^*$ and $\nu_{\tau}^*$, was performed with the L3 detector at LEP using data collected at a centre--of--mass energy of 189 GeV, corresponding to an integrated luminosity of $\rm 176~pb^{-1}$. No evidence of their production is observed. [...]
hep-ex/9910021; CERN-EP-99-138; CERN-EP-99-138; CERN-L3-191.- Geneva : CERN, 2000 - 14 p. - Published in : Phys. Lett. B 473 (2000) 177-185 Fulltext: ep-99-138 - PDF; arXiv:hep-ex_9910021 - PDF; External link: Preprint - Please contact the library if you need to access this document.
Detaljert visning - Lignende elementer
9.
Searches for scalar quarks in $e^{+}e^{-}$ interactions at $\sqrt{s}$= 189 GeV / L3 Collaboration
Searches for scalar top and scalar bottom quarks, as well as for mass-degenerate scalar quarks of the first two families are performed at 189 GeV centre-of-mass energy with the L3 detector at LEP. No signals are observed. [...]
hep-ex/9910020; CERN-EP-99-137; CERN-EP-99-137; CERN-L3-190.- Geneva : CERN, 1999 - 21 p. - Published in : Phys. Lett. B 471 (1999) 308-320 Fulltext: arXiv:hep-ex_9910020 - PDF; ep-99-137 - PDF; External link: Preprint - Please contact the library if you need to access this document.
Detaljert visning - Lignende elementer
10.
Measurement of Triple-Gauge-Boson Couplings of the W Boson at LEP / L3 Collaboration
We report on measurements of the triple-gauge-boson couplings of the W boson in $\mathrm{e^+e^-}$ collisions with the L3 detector at LEP. W-pair, single-W and single-photon events are analysed in a data sample corresponding to a total luminosity of 76.7~pb$^{-1}$ collected at centre-of-mass energies between 161~GeV and 183~GeV. [...]
hep-ex/9910008; CERN-EP-99-131; CERN-EP-99-131; CERN-L3-189.- Geneva : CERN, 1999 - 20 p. - Published in : Phys. Lett. B 467 (1999) 171-184 Fulltext: arXiv:hep-ex_9910008 - PDF; ep-99-131 - PDF; External link: Preprint - Please contact the library if you need to access this document.
Detaljert visning - Lignende elementer

CERN Document Server : 110 elementer funnet   1 - 10nesteslutt  gå til element:
Se også: lignende forfatternavn
24 Peach, D.
1 Peach, David
Ønsker du å bli varslet om nye resultater fra denne spørringen?
Sett opp ditt eget e-postvarsel eller abonner på RSS.
Fant du ikke det du lette etter? Gjenta søket på andre tjenere:
Peach, D i Amazon
Peach, D i CERN EDMS
Peach, D i CERN Intranet
Peach, D i CiteSeer
Peach, D i Google Books
Peach, D i Google Scholar
Peach, D i Google Web
Peach, D i IEC		Peach, D i IHS
Peach, D i INSPIRE
Peach, D i ISO
Peach, D i KISS Books/Journals
Peach, D i KISS Preprints
Peach, D i NEBIS
Peach, D i SLAC Library Catalog
Peach, D i Scirus