Direct Photon Center-of-Mass Angular Distributions in $p\bar{p}$ Collisions at $\sqrt{s}$ PDF Download
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Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 183
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Book Description
The center-of-mass angular distribution of direct photon events, resulting from proton-antiproton collisions at a center-of-mass energy of 1.8 TeV, as measured by the Collider Detector at Fermi lab (CDF) during the 1988-1089 experimental run, is presented. The direct photon events are identified primarily through the direct photon's characteristic isolation from other particles. The main source of background is from rare fragmentation of QCD partons into single isolated neutral mesons, which decay into two or more photons. The background is removed statistically by exploitation of tile expected difference in the resulting shower profiles. The resulting angular distribution for direct photons, in the transverse momentum range from 22 to 45 Ge V is found to agree favorably with the predictions of Quantum Cbromodynamics (QCD) for an interaction with a fermion (spin 1/2) propagator.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 183
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Book Description
The center-of-mass angular distribution of direct photon events, resulting from proton-antiproton collisions at a center-of-mass energy of 1.8 TeV, as measured by the Collider Detector at Fermi lab (CDF) during the 1988-1089 experimental run, is presented. The direct photon events are identified primarily through the direct photon's characteristic isolation from other particles. The main source of background is from rare fragmentation of QCD partons into single isolated neutral mesons, which decay into two or more photons. The background is removed statistically by exploitation of tile expected difference in the resulting shower profiles. The resulting angular distribution for direct photons, in the transverse momentum range from 22 to 45 Ge V is found to agree favorably with the predictions of Quantum Cbromodynamics (QCD) for an interaction with a fermion (spin 1/2) propagator.
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Author: Leslie F. Nakae
Publisher:
ISBN:
Category : Angular distribution (Nuclear physics)
Languages : en
Pages : 167
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Book Description
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 12
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Book Description
Data taken with the Collider Detector at Fermilab (CDF) during the 1992--1993 run of the Tevatron are used to measure the distribution of the center-of-mass angle between isolated prompt photons and the beam direction. The shape of the angular distribution for photon-jet events is found to differ from the predictions of NLO QCD.
Author: Steven A. Jerger
Publisher:
ISBN:
Category : Photons
Languages : en
Pages : 392
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Book Description
Author: Alexey N Sissakian
Publisher: World Scientific
ISBN: 9814485721
Category : Science
Languages : en
Pages : 469
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Book Description
This book covers a wide range of problems in elementary particle production physics — particle fluctuations and correlations, diffractive processes, soft and hard processes in quantum chromodynamics, heavy ion collisions, etc. Of the utmost importance are inclusion-theoretical papers devoted to the problems associated with high and even very high multiplicity particle production, making proposals for experiments at existing and forthcoming colliders of elementary particles.
Author: Yale University. Cowles Foundation for Research in Economics
Publisher:
ISBN:
Category : Economics
Languages : en
Pages : 80
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Book Description
Author: Alfredo Ferrari
Publisher:
ISBN:
Category : Particles (Nuclear physics)
Languages : en
Pages : 410
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Author: T. Binoth
Publisher: CRC Press
ISBN: 1439837708
Category : Science
Languages : en
Pages : 415
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Book Description
Exploring the phenomenology of the Large Hadron Collider (LHC) at CERN, LHC Physics focuses on the first years of data collected at the LHC as well as the experimental and theoretical tools involved. It discusses a broad spectrum of experimental and theoretical activity in particle physics, from the searches for the Higgs boson and physics beyond the Standard Model to studies of quantum chromodynamics, the B-physics sector, and the properties of dense hadronic matter in heavy-ion collisions. Covering the topics in a pedagogical manner, the book introduces the theoretical and phenomenological framework of hadron collisions and presents the current theoretical models of frontier physics. It offers overviews of the main detector components, the initial calibration procedures, and search strategies. The authors also provide explicit examples of physics analyses drawn from the recently shut down Tevatron. In the coming years, or perhaps even sooner, the LHC experiments may reveal the Higgs boson and offer insight beyond the Standard Model. Written by some of the most prominent and active researchers in particle physics, this volume equips new physicists with the theory and tools needed to understand the various LHC experiments and prepares them to make future contributions to the field.
Author: European Organization for Nuclear Research
Publisher:
ISBN:
Category : Isotope separation
Languages : en
Pages : 116
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Book Description
Author: J.S. Al-Khalili
Publisher: Springer
ISBN: 9783642061202
Category : Science
Languages : en
Pages : 0
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Book Description
Research with radioactive ion beams has entered a new era with the advent of energetic beams of radioactive nuclei able to induce nuclear reactions. The present book is the first volume of edited lectures based on material presented at the Euroschool on Exotic Beams over the past years. It introduces the graduate student and nonspecialist scientist from related areas to various topics encompassing theoretical, experimental as well as application-related aspects of this growing field of research.
