Search for bottom squarks in pp̄ collisions at √s=1.8 TeV
Physical Review D Particles Fields Gravitation and Cosmology 60:3 (1999) 1-5
Measurement of the top quark pair production cross section in pp̄ collisions using multijet final states
Physical Review D Particles Fields Gravitation and Cosmology 60:1 (1999) 1-26
Abstract:
We have studied tt̄ production using multijet final states in pp̄ collisions at a center-of-mass energy of 1.8 TeV, with an integrated luminosity of 110.3 pb-1. Each of the top quarks with these final states decays exclusively to a bottom quark and a W boson, with the W bosons decaying into quark-antiquark pairs. The analysis has been optimized using neural networks to achieve the smallest expected fractional uncertainty on the tt̄ production cross section, and yields a cross section of 7.1±2.8 (stat)±1.5 (syst) pb, assuming a top quark mass of 172.1 GeV/c2. Combining this result with previous DØ measurements, where one or both of the W bosons decay leptonically, gives a tt̄ production cross section of 5.9±1.2 (stat)±1.1 (syst) pb. ©1999 The American Physical Society.Determination of the absolute jet energy scale in the DO calorimeters
Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment 424:2 (1999) 352-394
Abstract:
The DO detector is used to study pp collisions at the 1800 and 630 GeV center-of-mass energies available at the Fermilab Tevatron. To measure jets, the detector uses a sampling calorimeter composed of uranium and liquid argon as the passive and active media, respectively, Understanding the jet energy calibration is not only crucial for precision tests of QCD, but also for the measurement of particle masses and the determination of physics backgrounds associated with new phenomena. This paper describes the energy calibration of jets observed with the DO detector at the two pp center-of-mass energies in the transverse energy and pseudorapidity range ESearch for Nonstandard Higgs Bosons Using High Mass Photon Pairs in pp¯→γγ+2 Jets at √s=1.8 TeV
Physical Review Letters American Physical Society (APS) 82:11 (1999) 2244-2249
Comparison of Fiber Polishing Techniques
Office of Scientific and Technical Information (OSTI) (1999)