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Published: 2003
Total Pages: 4
ISBN-13:
DOWNLOAD EBOOKThe authors present the first Run II measurements with the D0 detector of the inclusive jet and dijet cross sections at (square root)s = 1.96 TeV. This analysis is based on an integrated luminosity of 34 pb−1. The results from a next-to-leading order perturbative QCD calculation are compared to the measured cross sections. The theoretical calculation agrees with the data.
Author: George Redlinger
Publisher:
Published: 1989
Total Pages: 458
ISBN-13:
DOWNLOAD EBOOKAuthor: Paolo Gunnellini
Publisher: Springer
Published: 2015-08-24
Total Pages: 290
ISBN-13: 3319222139
DOWNLOAD EBOOKThis thesis addresses in a very new and elegant way several measurements and the extraction of so-called double parton scattering. The new and elegant way lies in the combination of measurements and a very smart extraction of double parton scattering results, which is easy to apply and overcomes many of the technical difficulties of older methods. Many new phenomena in particle physics can be observed when particles are collided at the highest energies; one of the highlights in recent years was the discovery of the Higgs boson at the Large Hadron Collider at CERN. Understanding the production mechanism of the Higgs boson at the LHC requires detailed knowledge of the physics of proton-proton collisions. When the density of partons in the protons becomes large, there is a non-negligible probability that more than one parton participates in the interaction and the so-called double parton scattering becomes important. In some cases very particular final state signatures can be observed, which can be regarded as an indication of such double partonic scattering and where the different interactions can be separated. Such multiple partonic interactions play an important role when precise predictions from known processes are required.
Author: Thomas William Henry
Publisher:
Published: 2007
Total Pages:
ISBN-13:
DOWNLOAD EBOOKThe STAR collaboration recorded [square root of s] =200 GeV per nucleon d+Au and p+pcollision events during the year 2003 RHIC run. In the p+p and the d+Au data samples, itis possible to reconstruct jets and make comparisons between them. This dissertation describes the reconstructed jet sample from the p+p events, the measurements of the jet jT distribution which quantifies the shape of the jet perpendicular to the jet direction, the jet fragmentation function (z), which quantifies the fraction of jet momentum carried by the jet particles, and the width of the parton momentum broadening distribution (kT). This dissertation also describes the comparison of these results to the reconstructed jet sample from d+Au events. Measurements of jet jT and jet fragmentation from p+p, d+Au, and PYTHIA are compared. The z and jT distributions from p+p and also d+Au are found to be consistent with PYTHIA event simulation version 6.205. RMS (jT) equals 612"12"30 MeV/c for p+p, and RMS (jT) equals 630"13"30 MeV/c for d+Au. The p+p kT Gaussian sigma (width) equals 2.08"0.12"0.13 GeV/c. This width is consistent with PYTHIA, kT literature surveys, and other RHIC measurements. A limit on nuclear kT broadening in the Au nucleus is also obtained, showing that nuclear kT is consistent with zero to within 0.5 GeV/c. The present status of the RdAu measurement from jets is also described. The nuclear kT broadening, in particular, is a measurement which has been done at this energy for the first time at RHIC. These measurements, while interesting by themselves, also will contribute ultimately to the understanding of Au+Au collisions at RHIC, and the properties of the high-density matter which results from them.
Author: Mohammad H. Sadraey
Publisher: CRC Press
Published: 2017-01-27
Total Pages: 627
ISBN-13: 1498776582
DOWNLOAD EBOOKAircraft Performance: An Engineering Approach introduces flight performance analysis techniques that enable readers to determine performance and flight capabilities of aircraft. Flight performance analysis for prop-driven and jet aircraft is explored, supported by examples and illustrations, many in full color. MATLAB programming for performance analysis is included, and coverage of modern aircraft types is emphasized. The text builds a strong foundation for advanced coursework in aircraft design and performance analysis.
Author: Dan M. Goebel
Publisher: John Wiley & Sons
Published: 2008-12-22
Total Pages: 528
ISBN-13: 0470436263
DOWNLOAD EBOOKThroughout most of the twentieth century, electric propulsion was considered the technology of the future. Now, the future has arrived. This important new book explains the fundamentals of electric propulsion for spacecraft and describes in detail the physics and characteristics of the two major electric thrusters in use today, ion and Hall thrusters. The authors provide an introduction to plasma physics in order to allow readers to understand the models and derivations used in determining electric thruster performance. They then go on to present detailed explanations of: Thruster principles Ion thruster plasma generators and accelerator grids Hollow cathodes Hall thrusters Ion and Hall thruster plumes Flight ion and Hall thrusters Based largely on research and development performed at the Jet Propulsion Laboratory (JPL) and complemented with scores of tables, figures, homework problems, and references, Fundamentals of Electric Propulsion: Ion and Hall Thrusters is an indispensable textbook for advanced undergraduate and graduate students who are preparing to enter the aerospace industry. It also serves as an equally valuable resource for professional engineers already at work in the field.
Author: Jet Propulsion Laboratory (U.S.)
Publisher:
Published: 1961
Total Pages: 422
ISBN-13:
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Publisher:
Published: 1995
Total Pages: 488
ISBN-13:
DOWNLOAD EBOOKLists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
Author: Ronald J. Adrian
Publisher: Cambridge University Press
Published: 2011
Total Pages: 585
ISBN-13: 0521440084
DOWNLOAD EBOOKParticle image velocimetry, or PIV, refers to a class of methods used in experimental fluid mechanics to determine instantaneous fields of the vector velocity by measuring the displacements of numerous fine particles that accurately follow the motion of the fluid. Although the concept of measuring particle displacements is simple in essence, the factors that need to be addressed to design and implement PIV systems that achieve reliable, accurate, and fast measurements and to interpret the results are surprisingly numerous. The aim of this book is to analyze and explain them comprehensively.
Author: J.M. Hollas
Publisher: Springer Science & Business Media
Published: 2012-12-06
Total Pages: 447
ISBN-13: 9401113149
DOWNLOAD EBOOKRecent years have seen an explosion in the volume of work carried out using supersonic jets of molecules following the discovery that the technique could provide information on structure and dynamics of a very high quality otherwise impossible to obtain. Written and edited by a first class team of authors, acknowledged world leaders in their subjects, this book describes applications in detail along with analysis of data recorded and background theory. Physical chemists and chemical physicists will find this unique book an essential concentrated source of information and reference.
