Search for trilepton signatures from associated gaugino pair production
PHYSICAL REVIEW LETTERS 80:8 (1998) 1591-1596
Zγ production in p(p)over-bar collisions at √s=1.8 TeV and limits on anomalous ZZγ and Zγγ couplings
PHYSICAL REVIEW D 57:7 (1998) R3817-R3821
Color coherent radiation in multijet events from pp- collisions at √s = 1.8 TeV
Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics 414:3-4 (1997) 419-427
Abstract:
We report on a study of color coherence effects in pp- collisions at a center of mass energy √s = 1.8 TeV. The data were collected with the DØ detector during the 1992-1993 run of the Fermilab Tevatron Collider. We observe the presence of initial-to-final state color interference with the spatial correlations between soft and hard jets in multijet events in the central and in forward pseudorapidity regions. The results are compared to Monte Carlo simulations with different color coherence implementations and to the predictions of script O sign(α3s) QCD calculations. © 1997 Elsevier Science B.V.Response of the ATLAS tile calorimeter prototype to muons
Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 388:1-2 (1997) 64-78
Abstract:
A study of high energy muons traversing the ATLAS hadron Tile calorimeter in the barrel region in the energy range between 10 and 300 GeV is presented. Both test beam experimental data and Monte Carlo simulations are given and show good agreement. The Tile calorimeter capability of detecting isolated muons over the above energy range is demonstrated. A signal to background ratio of about 10 is expected for the nominal LHC luminosity (1034 1/cm2s). The photoelectron statistics effect in the muon shape response is shown. The e/mip ratio is found to be 0.81 ± 0.03; the e/μ ratio is in the range 0.91-0.97. The energy loss of a muon in the calorimeter, dominated by the energy lost in the absorber, can be correlated to the energy loss in the active material. This correlation allows one to correct on an event by event basis the muon energy loss in the calorimeter and therefore reduce the low energy tails in the muon momentum distribution.Results from a combined test of an electromagnetic liquid argon calorimeter with a hadronic scintillating-tile calorimeter
Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 387:3 (1997) 333-351