Combined Measurement Of The Higgs Boson Mass In Pp Collisions At Sqrt S
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Combined Measurement Of The Higgs Boson Mass In Pp Collisions At Sqrt S
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Author :
language : en
Publisher:
Release Date : 2015
Combined Measurement Of The Higgs Boson Mass 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 2015 with categories.
A measurement of the Higgs boson mass is presented based on the combined data samples of the ATLAS and CMS experiments at the CERN LHC in the H → ?? and H → ZZ → 4l decay channels. These results are obtained from a simultaneous fit to the reconstructed invariant mass peaks in the two channels and for the two experiments. We measured masses from the individual channels and the two experiments are found to be consistent among themselves. Furthermore, the combined measured mass of the Higgs boson is mH = 125.09 ± 0.21(stat) ± 0.11(syst)GeV.
Response Of The High Granularity Calorimeter Hgcal And Characterisation Of The Higgs Boson
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Author : Matteo Bonanomi
language : en
Publisher: Springer Nature
Release Date : 2023-04-21
Response Of The High Granularity Calorimeter Hgcal And Characterisation Of The Higgs Boson written by Matteo Bonanomi and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2023-04-21 with Science categories.
This book highlights the most complete characterization of the Higgs boson properties performed to date in the "golden channel," i.e., decay into a pair of Z bosons which subsequently decay into four leptons. The data collected by the CMS experiment in the so-called Run-II data-taking period of the LHC are used to produce an extensive set of results that test in detail the predictions of the Standard Model. Given the remarkable predictive power of the SM when including the Higgs boson, possible new physics will require even more extensive studies at higher statistics. A massive upgrade of the detectors is necessary to maintain the current physics performance in the harsh environment of the High-Luminosity LHC (HL-LHC) project, expected to start by the end of 2027. The CMS Collaboration will replace the current endcap calorimeters with a High Granularity Calorimeter (HGCAL). The HGCAL will be the very first large-scale silicon-based imaging calorimeter ever employed in a high-energy physics experiment. This book presents the results of the analysis of the test beam data collected with the first large-scale prototype of the HGCAL. The results of this analysis are used to corroborate the final design of the HGCAL and its nominal physics performance expected for the HL-LHC operations.
The Higgs Boson Produced With Top Quarks In Fully Hadronic Signatures
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Author : Daniel Salerno
language : en
Publisher: Springer Nature
Release Date : 2019-10-25
The Higgs Boson Produced With Top Quarks In Fully Hadronic Signatures written by Daniel Salerno and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019-10-25 with Science categories.
The work presented in this PhD dissertation is the first search at CMS for Higgs bosons produced in association with top quarks (ttH) in a final state consisting of only jets. The results presented in this book uncover a new class of ttH events that will help us elucidate our understanding of the Yukawa sector interactions between the Higgs boson and the top quark. Despite this being the most common decay signature for ttH, a large contamination of SM backgrounds makes it the most challenging for extracting a signal from data. The PhD thesis presents many sophisticated tools and techniques that were developed in order to overcome these challenges. These tools pave the way for future analyses to investigate other standard model and beyond-standard model physics.
Evolution Of Silicon Sensor Technology In Particle Physics
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Author : Frank Hartmann
language : en
Publisher: Springer Nature
Release Date : 2024-12-07
Evolution Of Silicon Sensor Technology In Particle Physics written by Frank Hartmann and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2024-12-07 with Science categories.
This third edition of a well-received monograph provides a comprehensive overview of the state-of-the-art of detectors and their evolution. In addition to the silicon sensor technology described in the second edition, the book covers the following new topics: precise timing detectors (3D sensors and sensors with intrinsic gain layers), passive CMOS sensors, new developments in HV-CMOS sensors, and sparking in strip and pixel detectors. The chapter on the HL-LHC CMS upgrades has been updated, and the historical overview has been enriched with a section on the UA2 SPD pad detector system. The book includes a wealth of schematics and photos of detectors. It is also valuable for detector courses at the master/PhD level.
Search For New Heavy Charged Bosons And Measurement Of High Mass Drell Yan Production In Proton Proton Collisions
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Author : Markus Zinser
language : en
Publisher: Springer
Release Date : 2018-09-25
Search For New Heavy Charged Bosons And Measurement Of High Mass Drell Yan Production In Proton Proton Collisions written by Markus Zinser and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-09-25 with Science categories.
This book presents two analyses, the first of which involves the search for a new heavy charged gauge boson, a so-called W' boson. This new gauge boson is predicted by some theories extending the Standard Model gauge group to solve some of its conceptual problems. Decays of the W' boson in final states with a lepton (l± = e± , μ±) and the corresponding (anti-)neutrino are considered. Data collected by the ATLAS experiment in 2015 at a center of mass energy of √s =13 TeV is used for the analysis. In turn, the second analysis presents a measurement of the double-differential cross section of the process pp->Z/gamma^* + X -> l^+l^- + X, including a gamma gamma induced contribution, at a center of mass energy of sqrt{s} = 8 TeV. The measurement is performed in an invariant mass region of 116 GeV to 1500 GeV as a function of invariant mass and absolute rapidity of the l^+l^-- pair, and as a function of invariant mass and pseudorapidity separation of the l^+l^-- pair. The data analyzed was recorded by the ATLAS experiment in 2012 and corresponds to an integrated luminosity of 20.3/fb. It is expected that the measured cross sections are sensitive to the PDFs at very high values of the Bjorken-x scaling variable, and to the photon structure of the proton.
Clinical Algorithms In General Surgery
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Author : Salvatore Docimo Jr.
language : en
Publisher: Springer
Release Date : 2019-02-04
Clinical Algorithms In General Surgery written by Salvatore Docimo Jr. and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019-02-04 with Medical categories.
As the field of general surgery continues to expand, the diagnostic and therapeutic pathways are becoming more complex. The diagnostic modalities available to the clinician can be both very helpful but also overwhelming considering the findings can often determine the scope of treatment for a patient. This text will take the major pathologies of the systems commonly studied in general surgery and present them in a unique format based upon algorithms. The algorithms will begin with the clinical presentation of the patient, work its way through the various diagnostic modalities available to the surgeon, and finally allow the physician to make a decision regarding treatment options based upon various patterns in the algorithms. This text will become a very useful resources for surgeons as it allows complex clinical pathways to be conveniently organized in logical algorithms. It will become a concise yet comprehensive manual to assist in clinical decision making. All algorithms will be reviewed by experts in their field and include the most up-to-date clinical and evidence-based information. Clinical Algorithms in General Surgery provides a useful resource for surgeons in clinical practice as well as surgical residents, and surgical attendings who are preparing for board examinations. See sample algorithm in Attachments.
Technoscientific Research
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Author : Roman Z. Morawski
language : en
Publisher: Walter de Gruyter GmbH & Co KG
Release Date : 2024-06-04
Technoscientific Research written by Roman Z. Morawski and has been published by Walter de Gruyter GmbH & Co KG this book supported file pdf, txt, epub, kindle and other format this book has been release on 2024-06-04 with Computers categories.
Unlike the bulk majority of publications on philosophy of science and research ethics, which are authored by professional philosophers and intended for philosophers, this book has been written by a research practitioner and intended for research practitioners. It is distinctive by its integrative approach to methodological and ethical issues related to research practice, with special emphasis of mathematical modelling and measurement, as well as by attempted application of engineering design methodology to moral decision making. It is also distinctive by more than 200 real-world examples drawn from various domains of science and technology. It is neither a philosophical treaty nor a quick-reference guide. It is intended to encourage young researchers, especially Ph.D. students, to deeper philosophical reflection over research practice. They are not expected to have any philosophical background, but encouraged to consult indicated sources of primary information and academic textbooks containing syntheses of information from primary sources. This book can be a teaching aid for students attending classes aimed at identification of methodological and ethical issues related to technoscientific research, followed by introduction to the methodology of analysing dilemmas arising in this context.
The Case For Case Studies
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Author : Jennifer Widner
language : en
Publisher: Cambridge University Press
Release Date : 2022-05-26
The Case For Case Studies written by Jennifer Widner 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 2022-05-26 with Business & Economics categories.
This volume demonstrates how to conduct case study research that is both methodologically rigorous and useful to development policy. It will interest scholars and students across the social sciences using case studies, and provide constructive guidance to practitioners in development and public administration.
Novel Approaches To Colorectal Cancer
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Author :
language : en
Publisher: Academic Press
Release Date : 2021-06-18
Novel Approaches To Colorectal Cancer written by and has been published by Academic Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-06-18 with Science categories.
Novel Approaches to Colorectal Cancer, Volume 151 in the Advances in Cancer Research series, is composed of 11 reviews covering state-of-the-art research relating to the etiology, diagnosis, prevention and treatment of colorectal cancer. The book's chapters were written by recognized experts in the field, and include sections on molecular biomarkers in diagnosis and therapy, the interplay of diet, lifestyle, and the microbiome, early-age onset disease, mutational signature analysis, challenges in early detection, immunotherapy, organoid technology, the role of epigenetic alterations, disparities in minority populations, field carcinogenesis, and cancer as an evolutionary process. Each of these topics provides novel insights and concepts on various aspects of the nature of colorectal cancer, offering new opportunities for the management of a major source of cancer incidence and mortality. - Provides information on the timely nature of the included topics, which represent the most current concepts and approaches in cancer research - Offers outstanding and original reviews on colorectal cancer research - Provides the authority and expertise of the authors, all of whom are highly recognized and conducting state-of-the-art investigations in cancer, with this release focusing on colorectal cancer
Search For Higgs Boson Pair Production In The Bb Decay Channel
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Author : Luca Cadamuro
language : en
Publisher: Springer
Release Date : 2018-12-06
Search For Higgs Boson Pair Production In The Bb Decay Channel written by Luca Cadamuro and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-12-06 with Science categories.
This thesis presents innovative contributions to the CMS experiment in the new trigger system for the restart of the LHC collisions in Run II, as well as original analysis methods and important results that led to official publications of the Collaboration. The author's novel reconstruction algorithms, deployed on the Field-Programmable Gate Arrays of the new CMS trigger architecture, have brought a gain of over a factor 2 in efficiency for the identification of tau leptons, with a very significant impact on important H boson measurements, such as its decays to tau lepton pairs and the search for H boson pair production. He also describes a novel analysis of HH → bb tautau, a high priority physics topic in a difficult channel. The original strategy, optimisation of event categories, and the control of the background have made the result one of the most sensitive concerning the self-coupling of the Higgs boson among all possible channels at the LHC.