Z Gamma Cross Section Measurement Sigma Br Z Gamma In The Electron Channel For P Bar P Collisions At Sqrt S
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Z Gamma Cross Section Measurement Sigma Br Z Gamma In The Electron Channel For P Bar P Collisions At Sqrt S
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Author :
language : en
Publisher:
Release Date : 1994
Z Gamma Cross Section Measurement Sigma Br Z Gamma In The Electron Channel For P Bar P 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 1994 with categories.
The Z+[gamma] cross-section x branching ratio in the electron channel has been measured using the inclusive Z data sample from the CDF '88-'89 collider run, for which the total integrated luminosity was 4.05 ± 0.28 pb-1.
Scientific And Technical Aerospace Reports
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Author :
language : en
Publisher:
Release Date : 1992
Scientific And Technical Aerospace Reports written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1992 with Aeronautics categories.
Wild Gewild Gevild
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Author :
language : en
Publisher:
Release Date : 1983
Wild Gewild Gevild written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1983 with categories.
Government Reports Announcements Index
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Author :
language : en
Publisher:
Release Date : 1992
Government Reports Announcements Index written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1992 with Government publications categories.
Z Cross Section Measurement Br Z In The Electron Channel For P Bar P Collisions At S
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Author :
language : en
Publisher:
Release Date : 1994
Z Cross Section Measurement Br Z In The Electron Channel For P Bar P Collisions At 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 1994 with categories.
The Z +? cross-section x branching ratio in the electron channel has been measured using the inclusive Z data sample from the CDF 1988--1989 collider run, for which the total integrated luminosity was 4.05 ± 0.28 pb−1. Two Z? candidates are observed from central photon events with?R/{sub?}> 0.7 and E{sub t}{sup?}> 5.0 GeV. From these events the? * BR(Z +?) is measured and compared with SM predictions:? * BR(Z +?){sub e} = 6.8{sub -5.7}{sup +5.7}(stat + syst)pb? * BR(Z + {gamma})SM = 4.7{sub -4.7}{sup +0.7}(stat + syst)pb. From this ZZ{sub {gamma}} cross section measurement limits on the Z{sub {gamma}{gamma}} and couplings for three different choices of compositeness scale?{sub Z} are obtained. The experimental sensitivity to the h30{sup Z, {gamma}}/h10{sup Z, {gamma}} couplings is in the range of?{sub Z} - 450--500 GeV and for the h40{sup Z{gamma}}/h20{sup Z, {gamma}} couplings?{sub Z} - 300 GeV.
Looking Inside Jets
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Author : Simone Marzani
language : en
Publisher: Springer
Release Date : 2019-05-11
Looking Inside Jets written by Simone Marzani and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019-05-11 with Science categories.
This concise primer reviews the latest developments in the field of jets. Jets are collinear sprays of hadrons produced in very high-energy collisions, e.g. at the LHC or at a future hadron collider. They are essential to and ubiquitous in experimental analyses, making their study crucial. At present LHC energies and beyond, massive particles around the electroweak scale are frequently produced with transverse momenta that are much larger than their mass, i.e., boosted. The decay products of such boosted massive objects tend to occupy only a relatively small and confined area of the detector and are observed as a single jet. Jets hence arise from many different sources and it is important to be able to distinguish the rare events with boosted resonances from the large backgrounds originating from Quantum Chromodynamics (QCD). This requires familiarity with the internal properties of jets, such as their different radiation patterns, a field broadly known as jet substructure. This set of notes begins by providing a phenomenological motivation, explaining why the study of jets and their substructure is of particular importance for the current and future program of the LHC, followed by a brief but insightful introduction to QCD and to hadron-collider phenomenology. The next section introduces jets as complex objects constructed from a sequential recombination algorithm. In this context some experimental aspects are also reviewed. Since jet substructure calculations are multi-scale problems that call for all-order treatments (resummations), the bases of such calculations are discussed for simple jet quantities. With these QCD and jet physics ingredients in hand, readers can then dig into jet substructure itself. Accordingly, these notes first highlight the main concepts behind substructure techniques and introduce a list of the main jet substructure tools that have been used over the past decade. Analytic calculations are then provided for several families of tools, the goal being to identify their key characteristics. In closing, the book provides an overview of LHC searches and measurements where jet substructure techniques are used, reviews the main take-home messages, and outlines future perspectives.
Particle Detectors
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Author : Hermann Kolanoski
language : en
Publisher:
Release Date : 2020
Particle Detectors written by Hermann Kolanoski and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020 with Science categories.
Introduction -- Overview, history and concepts -- Interactions of particles with matter -- Movement of charge carriers in electric and magnetic fields -- Signal formation by moving charges -- Non-electronic detectors -- Gas-filled detectors -- Semiconductor detectors -- Track reconstruction and momentum measurement -- Photodetectors -- Cherenkov detectors -- Transition radiation detectors -- Scintillation detectors -- Particle identification -- Calorimeters -- Detectors for cosmic particles, neutrinos and exotic matter -- Signal processing, readout and noise -- Trigger and data acquisition systems -- Appendix A Dosimetry and radioactive sources -- Appendix B Weighting potential of segmented electrodes -- Appendix C Diffusion effects in drift chambers -- Appendix D Ionisation statistics in drift chambers -- Appendix E Position resolution of structured electrodes -- Appendix F Fitting of track models -- Appendix G LPM effect -- Appendix H Laplace transform -- Appendix I Physical noise sources -- Bibliography -- Abbreviations -- Index.
An Introductory Course Of Particle Physics
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Author : Palash B. Pal
language : en
Publisher: Taylor & Francis
Release Date : 2014-07-29
An Introductory Course Of Particle Physics written by Palash B. Pal and has been published by Taylor & Francis this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014-07-29 with Science categories.
For graduate students unfamiliar with particle physics, An Introductory Course of Particle Physics teaches the basic techniques and fundamental theories related to the subject. It gives students the competence to work out various properties of fundamental particles, such as scattering cross-section and lifetime. The book also gives a lucid summary
Measurement Of Z Gamma Production In Pbar P Collisions At Sqrt S
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Author :
language : en
Publisher:
Release Date : 2010
Measurement Of Z Gamma Production In Pbar P 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 2010 with categories.
The production rate and kinematics of photons produced in association with Z bosons are studied using 2 fb−1 of p{bar p} collision data collected at the Collider Detector at Fermilab. The cross section for p{bar p} → ll−? + X (where the leptons l are either muons or electrons with dilepton mass M{sub l{ell}}> 40 GeV/c2, and where the photon has transverse energy E{sub T}{sup?}> 7 GeV and is well separated from the leptons) is 4.6 ± 0.2 (stat) ± 0.3 (syst) ± 0.3 (lum) pb, which is consistent with standard model expectations. We use the photon ET distribution from Z{gamma} events where the Z has decayed to?+?−, e+e−, or?{bar {nu}} to set limits on anomalous (non-standard-model) trilinear couplings between photons and Z bosons.
Measurement Of The Production Cross Section For Z Gamma To Nu Bar Nu Gamma In Pp Collisions At Sqrt S
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Author :
language : en
Publisher:
Release Date : 2013
Measurement Of The Production Cross Section For Z Gamma To Nu Bar Nu Gamma 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 2013 with categories.