output
19922026
most citedAstropy: A Community Python Package for Astronomy

14.6k citations

Showing 1999Show all

44 papers · 1 filter

hep-ex1999★ 20 cited

Charged particle production in the Pb+Pb system at 158 GeV/c per nucleon

P. Deines-Jones, M. L. Cherry, A. Dabrowska +13

Charged particle multiplicities from high multiplicity central interactions of 158 GeV/nucleon Pb ions with Pb target nuclei have been measured in the central and far forward proje…

cond-mat.str-el1999★ 44 cited

Magnetic Field Dependence of the Paramagnetic to the High Temperature Magnetically Ordered Phase Transition in CeB6

Donavan Hall, Z. Fisk, R. G. Goodrich

We have measured the magnetic field dependence of the paramagnetic to high temperature magnetically ordered phase transition TQ(H) in CeB6 from 2 to 30 T using cantilever magnetome…

astro-ph1999★ 138 cited

The Flux Ratio Method for Determining the Dust Attenuation of Starburst Galaxies

Karl D. Gordon, Geoffrey C. Clayton, Adolf N. Witt +1

The presence of dust in starburst galaxies complicates the study of their stellar populations as the dust's effects are similar to those associated with changes in the galaxies' st…

hep-ex1999★ 19 cited

Measurement of the Probability of Gluon Splitting into Charmed Quarks in Hadronic Z Decays

L3 Collaboration

We have measured the probability, n(g->cc~), of a gluon splitting into a charm-quark pair using 1.7 million hadronic Z decays collected by the L3 detector. Two independent methods…

astro-ph1999★ 193 cited

A Multi-Component Measurement of the Cosmic Ray Composition Between 10^{17} eV and 10^{18} eV

T. Abu-Zayyad, K. Belov, D. J. Bird +45

The average mass composition of cosmic rays with primary energies between eV and eV has been studied using a hybrid detector consisting of the High Resolution Fly…

nucl-th1999★ 1 cited

Sum rules regarding the sign problem in Monte Carlo shell model calculations

C. W. Johnson, D. J. Dean

The Monte Carlo shell model is a powerful technique for computational nuclear structure. Only a certain class of nuclear interactions, however, such as pairing and quadrupole, are…

hep-ex1999★ 43 cited

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 gravit…

hep-ex1999★ 4 cited

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…

math.GT1999

Monodromy of fiber-type arrangements and orbit configuration spaces

Daniel C. Cohen

We prove similar theorems concerning the structure of bundles involving complements of fiber-type hyperplane arrangements and orbit configuration spaces. These results facilitate a…

hep-ex1999★ 4 cited

Search for Excited Leptons at \sqrt{s} = 189 GeV

L3 Collaboration

A search for excited leptons, 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, corres…

hep-ex1999★ 29 cited

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…

hep-ex1999★ 45 cited

Single and Multi-Photon Events with Missing Energy in e+e- Collisions at \sqrt{s} = 189 GeV

L3 Collaboration

Single and multi-photon events with missing energy are analysed using data collected with the L3 detector at LEP at a centre-of-mass energy of 189 GeV, for a total of 176 pb^{-1} o…

hep-ex1999★ 43 cited

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 e+e- collisions with the L3 detector at LEP. W-pair, single-W and single-photon events are analysed…

hep-ex1999★ 62 cited

Search for Charginos and Neutralinos in e+e- collisions at \sqrt{s} = 189 Gev

L3 Collaboration

We report the result of a search for charginos and neutralinos, in e+e- collisions at 189 GeV centre-of-mass energy at LEP. No evidence for such particles is found in a data sample…

hep-ex1999★ 11 cited

Search for Charged Higgs Bosons in e+e- Collisions at \sqrt{s} = 189 GeV

L3 Collaboration

A search for pair-produced charged Higgs bosons is performed with the L3 detector at LEP using data collected at a centre-of-mass energy of 188.6 GeV, corresponding to an integrate…

hep-ex1999★ 23 cited

Study of Z Boson Pair Production in e+e- Collisions at LEP at \sqrt{s}=189 GeV

L3 Collaboration

The pair production of Z bosons is studied using the data collected by the L3 detector at LEP in 1998 in e+e- collisions at a centre-of-mass energy of 189 GeV. All the visible fina…

hep-ex1999★ 49 cited

Search for Low Scale Gravity Effects in e+e- Collisions at LEP

L3 Collaboration

Recent theories propose that quantum gravity effects may be observable at LEP energies via gravitons that couple to Standard Model particles and propagate into extra spatial dimens…

hep-ex1999★ 30 cited

Measurement of the Spectroscopy of Orbitally Excited B Mesons at LEP

L3 Collaboration

We measure the masses, decay widths and relative production rate of orbitally excited B mesons using 1.25 million hadronic Z decays recorded by the L3 detector. B-meson candidates…

hep-ex1999★ 28 cited

Measurement of Mass and Width of the W Boson at LEP

L3 Collaboration

We report on measurements of the mass and total decay width of the W boson with the L3 detector at LEP. W-pair events produced in interactions between 161 GeV and…

hep-ex1999★ 37 cited

Measurement of an Elongation of the Pion Source in Z Decays

L3 Collaboration

We measure Bose-Einstein correlations between like-sign charged pion pairs in hadronic Z decays with the L3 detector at LEP. The analysis is performed in three dimensions in the lo…

hep-ex1999★ 23 cited

Formation of the in Two-Photon Collisions at LEP

L3 Collaboration

The two-photon width of the meson has been measured with the L3 detector at LEP. The is studied in the decay modes , KK, KK…

hep-ex1999★ 8 cited

Search for Heavy Neutral and Charged Leptons in ee Annihilation at = 183 and 189 GeV

L3 Collaboration

A search for unstable neutral and charged heavy leptons as well as for stable charged heavy leptons is performed at center-of-mass energies = 183 and 189 GeV with the L3…

hep-ex1999★ 15 cited

Search for Heavy Isosinglet Neutrinos in ee Annihilation at 130189 GeV

L3 Collaboration

A search for heavy neutrinos that are isosinglets under the standard gauge group is made at center-of-mass energies 130 189 GeV with the L3 detector at LEP…

hep-ex1999★ 12 cited

Measurement of Inclusive Production in Two-Photon Collisions at LEP

L3 Collaboration

Inclusive production of mesons in two-photon collisions was measured by the L3 experiment at LEP. The data were collected at a centre-of-mass energy $\sqrt{s} =…