Deep optical and near infrared observations in ELAIS areas
European Space Agency, (Special Publication) ESA SP (2001) 421-424
Abstract:
We present deep optical and near infrared imaging over half square degree of sky in the centres of the ELAIS regions N1 and N2 and coincident with deep XMM/Chandra observations. The data have been obtained with the Wide Field Camera (WFC) and the Cambridge InfraRed Survey Instrument (CIRSI) both at the Isaac Newton Telescope (Observatorio del Roque de los Muchachos, Canary Islands). Limiting magnitudes achieved are g'=26.7, r'=26.2, i'=25.0 and H=20.2 (3σ). These data have been used to identify the faint optical counterparts of the Infrared Space Observatory (ISO), radio and X-ray sources in these areas.MID-FIR properties of ELAIS sources
European Space Agency, (Special Publication) ESA SP (2001) 147-150
Abstract:
We present the properties of all the galaxies detected by ISO at 7, 15 and 90μm in ELAIS northern fields. The spectral energy distribution (SED) of those 20 galaxies with IRAS detections can generally be well fitted by a predominant cirrus component plus a modest starburst contribution. Follow-up spectroscopy has shown that all the objects are emission-line galaxies but without a very intense star formation event. Most of the galaxies analyzed by means of optical R band photometry result to host an important exponential disk component, in good agreement with the SED IR modelling. We note that galaxies with morphological signs of perturbations seem to show slightly higher f15/f6.7 ratios, indicating that star formation could be more important in them. One of the objects is a broad-line, radio-quiet quasar at z=1.099; its spectral energy distribution indicates that it is a hyperluminous infrared galaxy (HLIG), the first HLIG detected in the ELAIS areas.Measurement of dσ/dy for high mass Drell-Yan e+e- pairs from pp¯ collisions at s=1.8 TeV
Physical Review D American Physical Society (APS) 63:1 (2001) 011101
Measurement of the W boson mass with the Collider Detector at Fermilab
Physical Review D Particles Fields Gravitation and Cosmology 64:5 (2001)
Abstract:
We present a measurement of the W boson mass using data collected with the CDF detector during the 1994–1995 collider run at the Fermilab Tevatron. A fit to the transverse mass spectrum of a sample of 30115 [Formula Presented] events recorded in an integrated luminosity of 84 [Formula Presented] gives a mass [Formula Presented] A fit to the transverse mass spectrum of a sample of 14740 [Formula Presented] events from 80 [Formula Presented] gives a mass [Formula Presented] The dominant contributions to the sys- tematic uncertainties are the uncertainties in the electron energy scale and the muon momentum scale, [Formula Presented] and [Formula Presented] respectively. The combined value for the electron and muon channel is [Formula Presented] When combined with previously published CDF measurements, we obtain [Formula Presented] © 2001 The American Physical Society.Measurement of the inclusive jet cross section in pp collisions at \/s = 1.8 TeV
Physical Review D 64:3 (2001)