Measurement Of The Double Longitudinal Spin Asymmetry In Inclusive Jet Production In Polarized P P Collisions At S
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Longitudinal Double Spin Asymmetry Of Electrons From Heavy Flavor Decays In Polarized P P Collisions At S 200 Gev
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Author : Katsuro Nakamura
language : en
Publisher: Springer
Release Date : 2014-05-21
Longitudinal Double Spin Asymmetry Of Electrons From Heavy Flavor Decays In Polarized P P Collisions At S 200 Gev written by Katsuro Nakamura and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014-05-21 with Science categories.
In this thesis, the measurement of double-spin asymmetry for electron production from heavy flavor decays was performed in a Relativistic Heavy Ion Collider (RHIC) in the PHENIX experiment at Brookhaven National Laboratory to measure the polarized parton distribution function of gluon in the small Bjorken x region (x~0.01). For this experiment, for the first time a Hadron Blind Detector (HBD), which is a position-sensitive gas Cherenkov counter with Gas Electron Multiplier whose surface is evaporated by CsI, was employed. This HBD contributes to reducing the background from electron pairs produced by real and virtual photon conversion. Furthermore, the author develops a new analysis method for the background reduction, and the signal-to-background ratio is improved by a factor of roughly 2.0. Using the combination of the HBD and a new analysis method, the double-spin asymmetry of the electron production with transverse momentum ranging 0.5 pT 3.0 GeV/c is measured and confirmed to be zero-consistent within the limit of the statistical uncertainty of about 1%. This result identifies the constraint of the gluon polarization in the small Bjorken
Jet Physics At The Lhc
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Author : Klaus Rabbertz
language : en
Publisher: Springer
Release Date : 2016-10-11
Jet Physics At The Lhc written by Klaus Rabbertz and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-10-11 with Science categories.
This book reviews the latest experimental results on jet physics from proton-proton collisons at the LHC. Jets allow to determine the strong coupling constant over a wide range of energies up the highest ones possible so far, and to constrain the gluon parton distribution of the proton, both of which are important uncertainties on theory predictions in general and for the Higgs boson in particular.A novel approach in this book is to categorize the examined quantities according to the types of absolute, ratio, or shape measurements and to explain in detail the advantages and differences. Including numerous illustrations and tables the physics message and impact of each observable is clearly elaborated.
Proceedings Of The 17th International Spin Physics Symposium
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Author : Kenichi Imai
language : en
Publisher: American Institute of Physics
Release Date : 2007-07-02
Proceedings Of The 17th International Spin Physics Symposium written by Kenichi Imai and has been published by American Institute of Physics this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007-07-02 with Science categories.
Getting down to the bottom line is what this proceedings digest is all about, as any physicist will tell you: spin is the fundamental concept in physics. The applications are pretty universal due to the fact that, using spin-related phenomena, physicists are trying to reveal the fundamental principles of nature – and things don’t come much more bottom-line than that. This volume is the proceedings of the 17th International Spin Physics Symposium which is a forum to discuss spin physics and related topics.
Deep Inelastic Scattering
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Author : Masahiro Kuze
language : en
Publisher: World Scientific
Release Date : 2007
Deep Inelastic Scattering written by Masahiro Kuze and has been published by World Scientific this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007 with Science categories.
These proceedings present the most up-to-date status of deep inelastic scattering (DIS) physics. Topics such as structure function measurements and phenomenology, quantum chromodynamics (QCD) studies in DIS and photoproduction, spin physics and diffractive interactions are reviewed in detail, with emphasis on those studies that push the test of QCD and the Standard Model to the limits of their present range of validity, towards both the very high and the very low four-momentum transfers in lepton-proton scattering.
Spin Physics
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Author : Don G. Crabb
language : en
Publisher: American Institute of Physics
Release Date : 2009-08-25
Spin Physics written by Don G. Crabb and has been published by American Institute of Physics this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009-08-25 with Science categories.
The topics covered in the conference ranged from the physics that can be done with polarized beams of particles (protons, electrons, gamma-rays, etc.) to the techniques and instrumentation necessary to achieve this. Topics included: nucleon structure measurements (from where does the spin of the proton and neutron come), the acceleration, storage and polarization of particle beams and the polarized targets and sources necessary for mounting the experiments.
High Energy Physics
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Author : Hesheng Chen
language : en
Publisher: World Scientific
Release Date : 2005-05-03
High Energy Physics written by Hesheng Chen and has been published by World Scientific this book supported file pdf, txt, epub, kindle and other format this book has been release on 2005-05-03 with Science categories.
The 32nd International Conference on High Energy Physics belongs to the Rochester Conference Series, and is the most important international conference in 2004 on high energy physics. The proceedings provide a comprehensive review on the recent developments in experimental and theoretical particle physics. The latest results on Top, Higgs search, CP violation, neutrino mixing, pentaquarks, heavy quark mesons and baryons, search for new particles and new phenomena, String theory, Extra dimension, Black hole and Lattice calculation are discussed extensively. The topics covered include not only those of main interest to the high energy physics community, but also recent research and future plans. Contents: Neutrino Masses and MixingsQuark Matter and Heavy Ion CollisionsParticle Astrophysics and CosmologyElectroweak PhysicsQCD Hard InteractionsQCD Soft InteractionsComputational Quantum Field TheoryCP Violation, Rare Kaon Decay and CKMR&D for Future Accelerator and DetectorHadron Spectroscopy and ExoticsHeavy Quark Mesons and BaryonsBeyond the Standard ModelString Theory Readership: Experimental and theoretical physicists and graduate students in the fields of particle physics, nuclear physics, astrophysics and cosmology.Keywords:High Energy Physics;Particle Physics;Electroweak;QCD;Heavy Quark;Neutrino;Particle Astrophysics;Hadron Spectroscopy;CP Violation;Quark Matter;Future Accelerator
Fundamental Interactions Proceedings Of The 21st Lake Louise Winter Institute
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Author : Alan Astbury
language : en
Publisher: World Scientific
Release Date : 2006-12-29
Fundamental Interactions Proceedings Of The 21st Lake Louise Winter Institute written by Alan Astbury and has been published by World Scientific this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006-12-29 with Science categories.
This proceedings volume contains the latest developments in particle physics in collider experiments. The contributions cover new results such as the production of quark-gluon plasma in the heavy-ion collider, the new techniques for precision measurement at low energies, and the status of neutrino physics at various laboratories including the new facilities that are at the planning stage.
Vii Latin American Symposium On Nuclear Physics And Applications
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Author : Ricardo Alarcon
language : en
Publisher: American Inst. of Physics
Release Date : 2007-11-09
Vii Latin American Symposium On Nuclear Physics And Applications written by Ricardo Alarcon and has been published by American Inst. of Physics this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007-11-09 with Science categories.
These proceedings aim to show the vitality and significance of nuclear science. The focus is the promotion of Nuclear Physics and its applications among Latin American laboratories and the international community. This Volume covers six main topics: Applications of Nuclear Physics, QCD in Nuclear Physics, Fundamental Symmetries and Neutrinos, Nuclear Structure and Reactions, Nuclear and Particle Astrophysics, and Facilities and Instrumentation.
From My Vast Repertoire Guido Altarelli S Legacy
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Author : Stefano Forte
language : en
Publisher: World Scientific
Release Date : 2018-10-24
From My Vast Repertoire Guido Altarelli S Legacy written by Stefano Forte and has been published by World Scientific this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-10-24 with Science categories.
'What makes this collection unusual and refreshing is that it is not the more common ‘Festschrift’ written by specialists for specialists, but a broad set of topical summaries and analyses addressed to a wide readership of particle physicists. Inevitably, some of the sections are more advanced in their treatment than others, but most of the material will be accessible and helpful to researchers at all levels, and in particular to those working on experiments at CERN, where Altarelli spent many years in the theory group. It is hard to do justice to the varied contents of this excellent collection … I can only recommend that anyone involved in particle research should turn to the web for a full description of the richness of material that is included here … There is something here for everyone, and much for most. I’m sure Altarelli would have been pleased with that! The Editors are to be complimented for their initiative in making this unique volume possible.'Contemporary PhysicsGuido Altarelli was a leading figure in 20th century particle physics. His scientific contributions and leadership played a key role in the development of the Standard Model of fundamental interactions, as well as the current search for new physics beyond it, both at and beyond CERN. This book is a collection of original contributions, at the cutting edge of scientific research, by some of the leading theoretical and experimental high-energy physicists currently in the field. These were inspired by Guido's ideas, whether directly or indirectly. This book is ideal for researchers looking to keep up with the latest developments in high-energy physics.
Charge Multiplicity Asymmetry Correlation Study Searching For Local Parity Violation At Rhic For Star Collaboration
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Author : Quan Wang
language : en
Publisher: Springer Science & Business Media
Release Date : 2013-08-13
Charge Multiplicity Asymmetry Correlation Study Searching For Local Parity Violation At Rhic For Star Collaboration written by Quan Wang and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-08-13 with Science categories.
It has been suggested that local parity violation (LPV) in Quantum Chromodynamics (QCD) would lead to charge separation of quarks by the Chiral Magnetic Effect (CME) in heavy ion collisions. Charge Multiplicity Asymmetry Correlation Study Searching for Local Parity Violation at RHIC for STAR Collaboration presents the detailed study of charge separation with respect to the event plane. Results on charge multiplicity asymmetry in Au+Au and d+Au collisions at 200 GeV by the STAR experiment are reported. It was found that the correlation results could not be explained by CME alone. Additionally, the charge separation signal as a function of the measured azimuthal angle range as well as the event-by-event anisotropy parameter are studied. These results indicate that the charge separation effect appears to be in-plane rather than out-of-plane. It is discovered that the charge separation effect is proportional to the event-by-event azimuthal anisotropy and consistent with zero in events with zero azimuthal anisotropy. These studies suggest that the charge separation effect, within the statistical error, may be a net effect of event anisotropy and correlated particle production. A potential upper limit on the CME is also presented through this data.