Measurement Of J Psi And Psi 2s At Forward And Backward Rapidity In P P P Al P Au And 3he Au Collisions At Snn
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Measurement Of J Psi And Psi 2s At Forward And Backward Rapidity In P P P Al P Au And 3he Au Collisions At Snn
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Author : Krista Lizbeth Smith
language : en
Publisher:
Release Date : 2021
Measurement Of J Psi And Psi 2s At Forward And Backward Rapidity In P P P Al P Au And 3he Au Collisions At Snn written by Krista Lizbeth Smith and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021 with Nuclear physics categories.
Suppression of the J/psi nuclear modification factor has been seen as a trademark signature of final state effects in large collision systems for decades. In small systems, the nuclear modification was attributed to cold nuclear matter effects until the observation of strong differential suppression of the psi(2S) state in p/d+A collisions suggested the presence of final state effects. Results of J/psi and psi(2S) measurements in the dimuon decay channel are presented here for a collection of different small systems at the same collision energy. These small systems include: p+p, p+Al, p+Au and 3He+Au at collision energy square root s_NN = 200 GeV. The results are predominantly shown in the form of the nuclear modification factor, R_AB, the ratio of the J/psi or psi(2S) invariant yield per nucleon-nucleon collision in collisions of projectile A on target B to that in p+p collisions. Measurements of the J/psi and psi(2S) nuclear modification factor are then compared with shadowing and transport model predictions, as well as to complementary measurements at LHC energies.
The Multi Universe Cosmos
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Author : A.K. Velan
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
The Multi Universe Cosmos written by A.K. Velan 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 2012-12-06 with Science categories.
In light of the barrage of popular books on physics and cosmology, one may question the need for another. Here, two books especially come to mind: Steven Weinberg's The First Three Minutes, written 12 years ago, and the recent best-seller ABriefHistory of Time by Stephen Hawking. The two books are complementary. Weinberg-Nobel prize winner/physicist-wrote from the standpoint of an elementary particle physicist with emphasis on the contents of the universe, whereas Hawking wrote more as a general relativist with emphasis on gravity and the geometry of the universe. Neither one, however, presented the complete story. Weinberg did not 13 venture back beyond the time when temperature was higher than 10 K and 32 perhaps as high as 10 K. He gave no explanation for the origin of particles and the singularity or source of the overwhelming radiation energy in our uni verse of one billion photons for each proton. Hawking presents a uni verse that has no boundaries, was not created, and will not be destroyed. The object of this book is to describe my new theory on the creation of our uni verse in a multi-universe cosmos. The new cosmological model eliminates the troublesome singularity-big bang theory and explains for the first time the origin of matter and the overwhelming electromagnetic radiation contained in the universe. My new theory also predicted the existence ofhigh-energy gamma rays, which were recendy detected in powerful bursts.
The Effects Of Nuclear Weapons
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Author : United States. Department of Defense
language : en
Publisher:
Release Date : 1962
The Effects Of Nuclear Weapons written by United States. Department of Defense and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1962 with Nuclear warfare categories.
1. General principles of nuclear explosions -- 2. Descriptions of nuclear explosions -- 3. Air blast phenomena -- 4. Air blast loading and target response -- 5. Structural damage from heat -- 6. Effects of surface and subsurface bursts -- 7. Thermal radiation and its effects -- 8. Initial nuclear radiation -- 9. Residual nuclear radiation and fallout -- 10. Radio and radar effects -- 11. Effects on personnel -- 12 Principles of protection.
Fundamentals Of Microfabrication And Nanotechnology Three Volume Set
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Author : Marc J. Madou
language : en
Publisher: CRC Press
Release Date : 2018-12-14
Fundamentals Of Microfabrication And Nanotechnology Three Volume Set written by Marc J. Madou and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-12-14 with Technology & Engineering categories.
Now in its third edition, Fundamentals of Microfabrication and Nanotechnology continues to provide the most complete MEMS coverage available. Thoroughly revised and updated the new edition of this perennial bestseller has been expanded to three volumes, reflecting the substantial growth of this field. It includes a wealth of theoretical and practical information on nanotechnology and NEMS and offers background and comprehensive information on materials, processes, and manufacturing options. The first volume offers a rigorous theoretical treatment of micro- and nanosciences, and includes sections on solid-state physics, quantum mechanics, crystallography, and fluidics. The second volume presents a very large set of manufacturing techniques for micro- and nanofabrication and covers different forms of lithography, material removal processes, and additive technologies. The third volume focuses on manufacturing techniques and applications of Bio-MEMS and Bio-NEMS. Illustrated in color throughout, this seminal work is a cogent instructional text, providing classroom and self-learners with worked-out examples and end-of-chapter problems. The author characterizes and defines major research areas and illustrates them with examples pulled from the most recent literature and from his own work.
Measurement Of Prompt Psi 2s To J Psi Yield Ratios In Pbpb And Pp Collisions At Sqrt S Nn
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Author :
language : en
Publisher:
Release Date : 2014
Measurement Of Prompt Psi 2s To J Psi Yield Ratios In Pbpb And Pp Collisions At Sqrt S Nn written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014 with categories.
The ratio between the prompt psi(2S) and J/psi yields, reconstructed via their decays into muon pairs, is measured in PbPb and pp collisions at sqrt(s[NN]) = 2.76 TeV. The analysis is based on PbPb and pp data samples collected by CMS at the LHC, corresponding to integrated luminosities of 150 inverse microbarns and 5.4 inverse picobarns, respectively. The double ratio of measured yields, (N[psi(2S)]/N[J/psi])[PbPb] / (N[psi(2S)]/ N[J/psi])[pp], is computed in three PbPb collision centrality bins and two kinematic ranges: one at midrapidity, abs(y)
J Psi Suppression At Forward Rapidity In Au Au Collisions At Sqrt S Nn
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Author :
language : en
Publisher:
Release Date : 2011
J Psi Suppression At Forward Rapidity In Au Au Collisions At Sqrt S Nn written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011 with categories.
J Psi Production In Au Au Collisions At Square Root S Sub Nn
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Author :
language : en
Publisher:
Release Date : 2003
J Psi Production In Au Au Collisions At Square Root S Sub Nn written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2003 with categories.
This thesis presents the first J/psi production analysis of Au+Au reactions at forward rapidity at [square root]sNN = 200 GeV. In the second year of RHIC running, design energy was achieved in the collisions of both Au+Au ions and proton+proton reactions. The production of the J/psi is measured by the PHENIX experiment in Au+Au collisions as well as in proton-proton collisions. The scientific goal is to investigate the nature of hot, dense nuclear matter capitalizing on the unique properties of the J/psi as a probe of this matter. Recent experimental results by the NA50 collaboration at CERN strongly deviate from the conventional picture that successfully describes data at lower energies. The importance of such a measurement is demonstrated by the wide spectrum of theoretical explanations concerning the existing data. The merits of these models will be explored in a systematic and comprehensive study of the J/psi and open charm in collisions of a variety of species and energy. A survey of the theoretical models is presented and the relevant open charm and J/psi PHENIX measurements are compared.
J Psi And Psi 2s Production In Pp Collisions At Sqrt S
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Author :
language : en
Publisher:
Release Date : 2012
J Psi And Psi 2s Production In Pp Collisions At Sqrt S written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012 with categories.
A measurement of the J/psi and psi(2S) production cross sections in pp collisions at sqrt(s)=7 TeV with the CMS experiment at the LHC is presented. The data sample corresponds to an integrated luminosity of 37 inverse picobarns. Using a fit to the invariant mass and decay length distributions, production cross sections have been measured separately for prompt and non-prompt charmonium states, as a function of the meson transverse momentum in several rapidity ranges. In addition, cross sections restricted to the acceptance of the CMS detector are given, which are not affected by the polarization of the charmonium states. The ratio of the differential production cross sections of the two states, where systematic uncertainties largely cancel, is also determined. The branching fraction of the inclusive B to psi(2S) X decay is extracted from the ratio of the non-prompt cross sections to be: BR(B to psi(2S) X) = (3.08 +/- 0.12(stat.+syst.) +/- 0.13(theor.) +/- 0.42(BR[PDG])) 10-̂3.
Measurement Of Prompt Psi 2s To J Psi Yield Ratios In Pb Pb And P P Collisions At Sqrt S Nn
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Author :
language : en
Publisher:
Release Date : 2014
Measurement Of Prompt Psi 2s To J Psi Yield Ratios In Pb Pb And P P Collisions At Sqrt S Nn written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014 with categories.
The ratio between the prompt [psi](2S) and J/[psi] yields, reconstructed via their decays into [mu]+[mu]-, is measured in Pb-Pb and p-p collisions at √sNN=2.76 TeV. Likewise, the analysis is based on Pb-Pb and p-p data samples collected by CMS at the Large Hadron Collider, corresponding to integrated luminosities of 150 [mu]b-1 and 5.4 pb-1, respectively. The double ratio of measured yields (N[psi](2S)/NJ/[psi])Pb-Pb/(N[psi](2S)/NJ/[psi])p-p is computed in three Pb-Pb collision centrality bins and two kinematic ranges: one at midrapidity,
Inclusive J Psi Production At Mid Rapidity In P Pb Collisions At Snn
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Author : Michael Winn
language : en
Publisher:
Release Date : 2016
Inclusive J Psi Production At Mid Rapidity In P Pb Collisions At Snn written by Michael Winn and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016 with Charmonium categories.