Direct Photon Center-of-Mass Angular Distributions in $p\bar{p}$ Collisions at $\sqrt{s}$ PDF Download

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Direct Photon Center-of-Mass Angular Distributions in $p\bar{p}$ Collisions at $\sqrt{s}$

Direct Photon Center-of-Mass Angular Distributions in $p\bar{p}$ Collisions at $\sqrt{s}$ PDF Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 183

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.

Direct Photon Center-of-Mass Angular Distributions in $p\bar{p}$ Collisions at $\sqrt{s}$

Direct Photon Center-of-Mass Angular Distributions in $p\bar{p}$ Collisions at $\sqrt{s}$ PDF Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 183

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.

Direct Photon Center-of-mass Angular Distribution in Proton-antiproton Collisions at [square Root]s

Direct Photon Center-of-mass Angular Distribution in Proton-antiproton Collisions at [square Root]s PDF Author: Leslie F. Nakae
Publisher:
ISBN:
Category : Angular distribution (Nuclear physics)
Languages : en
Pages : 167

Book Description


The Center-of-mass Angular Distribution of Prompt Photons Produced in P{bar P} Collisions at (square Root)s

The Center-of-mass Angular Distribution of Prompt Photons Produced in P{bar P} Collisions at (square Root)s PDF Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 12

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.

Multiparticle Dynamics - Proceedings Of The Xxxii International Symposium

Multiparticle Dynamics - Proceedings Of The Xxxii International Symposium PDF Author: Alexey N Sissakian
Publisher: World Scientific
ISBN: 9814485721
Category : Science
Languages : en
Pages : 469

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.

Report of Research Activities

Report of Research Activities PDF Author: Yale University. Cowles Foundation for Research in Economics
Publisher:
ISBN:
Category : Economics
Languages : en
Pages : 80

Book Description


Fluka

Fluka PDF Author: Alfredo Ferrari
Publisher:
ISBN:
Category : Particles (Nuclear physics)
Languages : en
Pages : 410

Book Description


LHC Physics

LHC Physics PDF Author: T. Binoth
Publisher: CRC Press
ISBN: 1439837708
Category : Science
Languages : en
Pages : 415

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.

HIE-ISOLDE: the Technical Options

HIE-ISOLDE: the Technical Options PDF Author: European Organization for Nuclear Research
Publisher:
ISBN:
Category : Isotope separation
Languages : en
Pages : 116

Book Description


The Euroschool Lectures on Physics with Exotic Beams, Vol. I

The Euroschool Lectures on Physics with Exotic Beams, Vol. I PDF Author: J.S. Al-Khalili
Publisher: Springer
ISBN: 9783642061202
Category : Science
Languages : en
Pages : 0

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.

Strings, Branes and Extra Dimensions

Strings, Branes and Extra Dimensions PDF Author: Steven Scott Gubser
Publisher: World Scientific
ISBN: 9789812702821
Category : Science
Languages : en
Pages : 872

Book Description
This book covers some recent advances in string theory and extra dimensions. Intended mainly for advanced graduate students in theoretical physics, it presents a rare combination of formal and phenomenological topics, based on the annual lectures given at the School of the Theoretical Advanced Study Institute (2001) OCo a traditional event that brings together graduate students in high energy physics for an intensive course of advanced learning. The lecturers in the School are leaders in their fields. The first lecture, by E DOCOHoker and D Freedman, is a systematic introduction to the gaugeOCogravity correspondence, focusing in particular on correlation functions in the conformal case. The second, by L Dolan, provides an introduction to perturbative string theory, including recent advances on backgrounds involving Ramond-Ramond fluxes. The third, by S Gubser, explains some of the basic facts about special holonomy and its uses in string theory and M-theory. The fourth, by J Hewett, surveys the TeV phenomenology of theories with large extra dimensions. The fifth, by G Kane, presents the case for supersymmetry at the weak scale and some of its likely experimental consequences. The sixth, by A Liddle, surveys recent developments in cosmology, particularly with regard to recent measurements of the CMB and constraints on inflation. The seventh, by B Ovrut, presents the basic features of heterotic M-theory, including constructions that contain the Standard Model. The eighth, by K Rajagopal, explains the recent advances in understanding QCD at low temperatures and high densities in terms of color superconductivity. The ninth, by M Sher, summarizes grand unified theories and baryogenesis, including discussions of supersymmetry breaking and the Standard Model Higgs mechanism. The tenth, by M Spiropulu, describes collider physics, from a survey of current and future machines to examples of data analyses relevant to theories beyond the Standard Model. The eleventh, by M Strassler, is an introduction to supersymmetric gauge theory, focusing on Wilsonian renormalization and analogies between three- and four-dimensional theories. The twelfth, by W Taylor and B Zwiebach, introduces string field theory and discusses recent advances in understanding open string tachyon condensation. The thirteenth, by D Waldram, discusses explicit model building in heterotic M-theory, emphasizing the role of the E8 gauge fields. The written presentation of these lectures is detailed yet straightforward, and they will be of use to both students and experienced researchers in high-energy theoretical physics for years to come. The proceedings have been selected for coverage in: . OCo Index to Scientific & Technical Proceedings (ISTP CDROM version / ISI Proceedings). OCo CC Proceedings OCo Engineering & Physical Sciences."