Improvement to the D0 Luminosity Monitor Constant
Improvement to the D0 Luminosity Monitor Constant

Author:

Publisher:

Published: 2001

Total Pages:

ISBN-13:

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The D0 experiment has previously calculated its luminosity using the visible cross section (luminosity monitor constant) for its Level 0 trigger, [sigma][sub L0]= 48.2 mb, based on the world average[ovr p]p inelastic cross sections at[radical]s= 1.8 TeV. The error on luminosity had been set at 12%. Recent studies using the MBR and DTUJET Monte Carlo event generators and unbiased D0 data samples have resulted in a more precise determination of the D0 luminosity monitor constant. The result, [sigma][sub L0]= 46.7[+-] 2.5 mb, lowers the central value by 3.1% and reduces the error to 5.4%. 12 refs., 7 figs., 9 tabs.

D0 Luminosity Monitor Constant for the 1994-1996 Tevatron Run
D0 Luminosity Monitor Constant for the 1994-1996 Tevatron Run

Author:

Publisher:

Published: 1997

Total Pages: 25

ISBN-13:

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The D0 experiment calculates its luminosity using the visible cross section (luminosity monitor constant) [sigma]{sub L0} for its Level 0 trigger based on the world average {anti p}p inelastic cross sections at √s - 1.8 TeV. For the 1992-1993 Tevatron Run (1A), the luminosity monitor constant was determined to be [sigma]{sub L0} = 46. 7±2.5 mb. For the 1994-1996 Tevatron Run (1B/1C), the luminosity monitor constant changed slightly with an upgrade to the electronics in the Level 0 trigger. The luminosity monitor constant becomes on average [sigma]{sub L0} - 44.53 ± 2.37 mb for Run 1B/1C. In addition, small corrections for halo and multiple single diffraction are included in integrated luminosity determinations.

Physics at the Terascale
Physics at the Terascale

Author: Ian Brock

Publisher: John Wiley & Sons

Published: 2011-05-04

Total Pages: 437

ISBN-13: 3527634975

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Written by authors working at the forefront of research, this accessible treatment presents the current status of the field of collider-based particle physics at the highest energies available, as well as recent results and experimental techniques. It is clearly divided into three sections; The first covers the physics -- discussing the various aspects of the Standard Model as well as its extensions, explaining important experimental results and highlighting the expectations from the Large Hadron Collider (LHC). The second is dedicated to the involved technologies and detector concepts, and the third covers the important - but often neglected - topics of the organisation and financing of high-energy physics research. A useful resource for students and researchers from high-energy physics.

Operation of the Run IIB D0 Luminosity System and Determination of the Run IIB Luminosity Constant
Operation of the Run IIB D0 Luminosity System and Determination of the Run IIB Luminosity Constant

Author:

Publisher:

Published: 2010

Total Pages: 73

ISBN-13:

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The luminosity system is an integral part of the D0 detector that must be properly maintained to provide accurate luminosity measurements for physics analysis. After the addition of a readout layer to the silicon vertex detector in 2006, it was necessary to re-calculate the effective inelastic cross section to which the luminosity monitor is sensitive. The preliminary analysis showed that the luminosity constant did not change with the addition of the extra layer of silicon. A full study of the revised luminosity constant including a complete analysis of systematic uncertainties has been completed. The luminosity constant was determined to be [sigma]{sub eff} = 48.3 ± 1.9 ± 0.6 mb, which reduces the D0 contribution to the luminosity measurement uncertainty by almost 3%.

Polarized Beams And Polarized Gas Targets: Proceedings Of The International Workshop
Polarized Beams And Polarized Gas Targets: Proceedings Of The International Workshop

Author: Hans Paetz Gen Schieck

Publisher: World Scientific

Published: 1996-03-21

Total Pages: 478

ISBN-13: 9814548030

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The International Workshop on Polarized Beams and Polarized Gas Targets was held in Cologne, Germany from June 6 to 9, 1995 as the last in a series held at 2-3 years intervals. It was attended by about 110 scientists; there were 47 invited and contributed talks, 5 round-table discussions and 17 poster contributions, all of which will appear as a written contribution in the Proceedings. The main subjects were Optically-Pumped Polarized Targets, Polarized Electron Sources, Atomic-Beam Polarized-Ion Sources, Optically-Pumped Polarized Ion Sources, Targets and Storage Rings. Significant progress and latest developments in this field were covered as well as future developments both from the technical, but also from the physics aspects.

Computer Processing of TOS Attitude Data
Computer Processing of TOS Attitude Data

Author: J. F. Gross

Publisher:

Published: 1968

Total Pages: 554

ISBN-13:

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This memorandum describes the computer program used operationally at the National Environmental Satellite Center (NESC) to determine the attitude of a TIROS operational Satellite (TOS)). It includes background information of historical interest, specific details of the problem and its solution, and thoughts about future approaches. It is intended as a description of this part of the NESC operation and as an introduction to the more esoteric program documentation

Pro Photographer's D-SLR Handbook
Pro Photographer's D-SLR Handbook

Author: Michael Freeman

Publisher: Sterling Publishing Company, Inc.

Published: 2008

Total Pages: 260

ISBN-13: 9781600594229

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Taking into account contemporary cameras' latest features, such as high resolution sensors, image stabilization, and dust reduction, Freeman thoroughly answers the most frequently asked questions about digital capture, storage, printers, and scanners. Photographers will learn the different file formats and how to save images for print and publishing on the web. They'll explore valuable software tools and basic image processing programs that fix common problems, and see how to improve pictures using an assortment of cropping and filtering techniques.

Advanced Sensors for Real-Time Monitoring Applications
Advanced Sensors for Real-Time Monitoring Applications

Author: Olga Korostynska

Publisher: MDPI

Published: 2021-03-09

Total Pages: 350

ISBN-13: 3036504265

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It is impossible to imagine the modern world without sensors, or without real-time information about almost everything—from local temperature to material composition and health parameters. We sense, measure, and process data and act accordingly all the time. In fact, real-time monitoring and information is key to a successful business, an assistant in life-saving decisions that healthcare professionals make, and a tool in research that could revolutionize the future. To ensure that sensors address the rapidly developing needs of various areas of our lives and activities, scientists, researchers, manufacturers, and end-users have established an efficient dialogue so that the newest technological achievements in all aspects of real-time sensing can be implemented for the benefit of the wider community. This book documents some of the results of such a dialogue and reports on advances in sensors and sensor systems for existing and emerging real-time monitoring applications.