Search For Quark Contact Interactions And Extra Spatial Dimensions Using Dijet Angular Distributions In Proton Proton Collisions At Sqrt S
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Search For Quark Contact Interactions And Extra Spatial Dimensions Using Dijet Angular Distributions In Proton Proton Collisions At Sqrt S
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Author :
language : en
Publisher:
Release Date : 2015
Search For Quark Contact Interactions And Extra Spatial Dimensions Using Dijet Angular Distributions In Proton Proton 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 2015 with categories.
Our search is presented for quark contact interactions and extra spatial dimensions in proton-proton collisions at √s=8TeVusing dijet angular distributions. The search is based on a data set corresponding to an integrated luminosity of 19.7fb-1collected by the CMS detector at the CERN LHC. Dijet angular distributions are found to be in agreement with the perturbative QCD predictions that include electroweak corrections. Limits on the contact interaction scale from a variety of models at next-to-leading order in QCD corrections are obtained. A benchmark model in which only left-handed quarks participate is excluded up to a scale of 9.0 (11.7)TeV for destructive (constructive) interference at 95% confidence level. Finally, lower limits between 5.9 and 8.4TeV on the scale of virtual graviton exchange are extracted for the Arkani-Hamed-Dimopoulos-Dvali model of extra spatial dimensions.
Search For New Physics With Dijet Angular Distributions In Proton Proton Collisions At Sqrt S
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Author :
language : en
Publisher:
Release Date : 2017
Search For New Physics With Dijet Angular Distributions In Proton Proton 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 2017 with categories.
A search is presented for extra spatial dimensions, quantum black holes, and quark contact interactions in measurements of dijet angular distributions in proton-proton collisions at sqrt(s) = 13 TeV. The data were collected with the CMS detector at the LHC and correspond to an integrated luminosity of 2.6 inverse femtobarns. The distributions are found to be in agreement with predictions from perturbative quantum chromodynamics that include electroweak corrections. Limits for different contact interaction models are obtained in a benchmark model, valid to next-to-leading order in QCD, in which only left-handed quarks participate, with quark contact interactions excluded up to a scale of 11.5 or 14.7 TeV for destructive or constructive interference, respectively. The production of quantum black holes is excluded for masses below 7.8 or 5.3 TeV, depending on the model. The lower limits for the scales of virtual graviton exchange in the Arkani-Hamed--Dimopoulos--Dvali model of extra spatial dimensions are in the range 7.9-11.2 TeV, and are the most stringent set of limits available.
Dissertation Abstracts International
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Author :
language : en
Publisher:
Release Date : 1994
Dissertation Abstracts International 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 Dissertations, Academic categories.
Heavy Quark Physics
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Author : Aneesh V. Manohar
language : en
Publisher: Cambridge University Press
Release Date : 2000-03-28
Heavy Quark Physics written by Aneesh V. Manohar and has been published by Cambridge University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2000-03-28 with Science categories.
A clear and original introductory 2000 text on the physics of heavy quarks, written by two world leading experts.
Quantum Black Holes
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Author : Xavier Calmet
language : en
Publisher: Springer Science & Business Media
Release Date : 2013-11-22
Quantum Black Holes written by Xavier Calmet 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 2013-11-22 with Science categories.
Written by foremost experts, this short book gives a clear description of the physics of quantum black holes. The reader will learn about quantum black holes in four and higher dimensions, primordial black holes, the production of black holes in high energy particle collisions, Hawking radiation, black holes in models of low scale quantum gravity and quantum gravitational aspects of black holes.
We Have No Idea
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Author : Jorge Cham
language : en
Publisher: Hachette UK
Release Date : 2017-05-16
We Have No Idea written by Jorge Cham and has been published by Hachette UK this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-05-16 with Social Science categories.
'This witty book reveals the humbling vastness of our ignorance about the universe, along with charming insights into what we actually do understand' Carlo Rovelli, author of Seven Brief Lessons on Physics and Reality Is Not What It Seems In our small corner of the universe, we know how some matter behaves most of the time and what even less of it looks like, and we have some good guesses about where it all came from. But we really have no clue what's going on. In fact, we don't know what about 95% of the universe is made of. So what happens when a cartoonist and a physicist walk into this strange, mostly unknown universe? Jorge Cham and Daniel Whiteson gleefully explore the biggest unknowns, why these things are still mysteries, and what a lot of smart people are doing to figure out the answers (or at least ask the right questions). While they're at it, they helpfully demystify many complicated things we do know about, from quarks and neutrinos to gravitational waves and exploding black holes. With equal doses of humour and delight, they invite us to see the universe as a vast expanse of mostly uncharted territory that's still ours to explore. This is a book for fans of Brian Cox and What If. This highly entertaining highly illustrated book is perfect for anyone who's curious about all the great mysteries physicists are going to solve next.
Experimental Particle Physics
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Author : Deepak Kar
language : en
Publisher:
Release Date : 2019
Experimental Particle Physics written by Deepak Kar and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019 with Large Hadron Collider (France and Switzerland) categories.
"This book is written for advanced undergraduate or beginning postgraduate student starting data analysis in experimental particle physics, more specifically at the Large Hadron Collider (LHC) at CERN. Only assuming basic knowledge of quantum mechanics and special relativity, it recaps the current state of affairs in particle physics, before comprehensively introducing all the ingredients that go into an analysis. Including how each we go from electronic signals in the detectors to visualising what particles were produced in a collision, and how we determine if that is consistent with Standard Model predictions or indicate the presence of yet unseen particles. The results are usually represented in what we call plots, and the book ensures students can understand what goes into the making of the plots, and how to interpret them." -- Prové de l'editor.
Hadron Interactions
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Author : P. D. B. Collins
language : en
Publisher: CRC Press
Release Date : 1984
Hadron Interactions written by P. D. B. Collins and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 1984 with Art categories.
Intended for graduate students, advanced undergraduates and research staff in particle physics and related disciplines and will also be of interest to physicists not working in this field who want an overview of the present development of the subject.
Search For Quark Compositeness With The Dijet Centrality Ratio In Pp Collisions At Sqrt S
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Author :
language : en
Publisher:
Release Date : 2010
Search For Quark Compositeness With The Dijet Centrality Ratio 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 2010 with categories.
A search for quark compositeness in the form of quark contact interactions, based on hadronic jet pairs (dijets) produced in proton-proton collisions at sqrt(s)=7 TeV, is described. The data sample of the study corresponds to an integrated luminosity of 2.9 inverse picobarns collected with the CMS detector at the LHC. The dijet centrality ratio, which quantifies the angular distribution of the dijets, is measured as a function of the invariant mass of the dijet system and is found to agree with the predictions of the Standard Model. A statistical analysis of the data provides a lower limit on the energy scale of quark contact interactions. The sensitivity of the analysis is such that the expected limit is 2.9 TeV; because the observed value of the centrality ratio at high invariant mass is below the expectation, the observed limit is 4.0 TeV at the 95% confidence level.
Search For Quark Compositeness In Dijet Angular Distributions From Pp Collisions At Sqrt S
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Author :
language : en
Publisher:
Release Date : 2012
Search For Quark Compositeness In Dijet Angular Distributions From 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 search for quark compositeness using dijet angular distributions from pp collisions at sqrt(s) = 7 TeV is presented. The search has been carried out using a data sample corresponding to an integrated luminosity of 2.2 inverse femtobarns, recorded by the CMS experiment at the LHC. Normalized dijet angular distributions have been measured for dijet invariant masses from 0.4 TeV to above 3 TeV and compared with a variety of contact interaction models, including those which take into account the effects of next-to-leading-order QCD corrections. The data are found to be in agreement with the predictions of perturbative QCD, and lower limits are obtained on the contact interaction scale, ranging from 7.5 up to 14.5 TeV at 95% confidence level.