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Autor:
Karl Jakobs
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 636:S1-S7
Over the coming years the experiments at the Large Hadron Collider (LHC) will explore the TeV energy scale and will most likely answer fundamental questions of particle physics. In the focus of the experiments are the search for physics beyond the St
Autor:
E.N. Koffeman
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 582:705-708
The HERA accelerator underwent a major upgrade in the year 2000. The upgrade was partly motivated by the desire to determine the contribution of heavy quarks and gluons to the proton structure more accurately. To benefit from the expected increase in
Autor:
F.D. Snider
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 566:133-141
We describe the tracking algorithms used during Run I and Run II by the CDF experiment at the Fermilab Tevatron collider, covering the time from about 1992 through the present, and discuss the performance of the algorithms at high luminosity. By trac
Autor:
Vaia Papadimitriou
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 446:143-151
Between 1992 to 1996, the CDF experiment has collected a data sample of 110 pb{sup -1} of p{bar p} collisions at {radical}s = 1.8 TeV at the Fermilab Tevatron. In the year 2001 the Tevatron will commence p{bar p} collisions again at {radical}s = 2.0
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 441:281-285
An increase in the luminosity of circular hadron–lepton collider HERA may be achieved via electron cooling of hadrons in the PETRA-preaccelerator. The cooling of high-energy (15–20 GeV) protons requires a high electron beam current (few amperes)
Autor:
R. Ferreira, Ghislain Grégoire, J. W. E. Uiterwijk, J Stolte, J. P Dewulf, Mehmet Zeyrek, C.A.F.J. van der Poel, T van Reen, E. Pesen, R. Beyer, M.J.F Jaspers, P. Gorbunov, M. de Jong, Jan Visschers, B. Friend, F. Bal, Rudolf Oldeman, L. Ludovici, M. van Beuzekom, L. Bonnet, J. Panman, J.C Boes, E.A. van den Born, J. Konijn
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 427:587-606
We give an overview of the main features of the CMS trigger and data acquisition (DAQ) system. Then, we illustrate the strategies and trigger configurations (trigger tables) developed for the detector calibration and physics program of the CMS experi
Autor:
William S. Brower, Hans P. Paar
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 421:411-416
We introduce a new method for selecting exclusive semileptonic charmless B-decays in the presence of a large background. The method can be applied to charged and neutral B-mesons decaying into any exclusive neutral or charged hadronic final state. Th
Autor:
H. Plothow-Besch
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 414:156-169
A study on the in situ calibration of the absolute energy scale of hadron calorimeters is presented. The basic idea is to use a physics process, namely Drell–Yan production of tau pairs with the subsequent decay of the tau into a single hadron and
Autor:
B. Frois
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 398:99-105
This paper describes the project of a 15–30 GeV CW electron accelerator to study how color forces build up hadrons from quarks and gluons. ELFE@DESY combines a section of the TESLA linear collider and the HERA ring to produce a high luminosity cont
Autor:
R. P. Thun, M. Petradza, J. Hylen, G. Bonvicini, J. W. Chapman, R. Frey, Hong Sj, H. Veltman, John Matthews, Gero E
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 317:453-462
We describe the design and performance of the Mark II small angle monitor (SAM) used for measurements of Bhabha scattering at the SLC. We also present results of SLC luminosity measurements made with SAM for the first determination of Z boson resonan