-PDF Download- 2011 European School Of High Energy Physics Cheile Gradistei Romania 7 20 September 2011 EBOOK

First Measurement of Neutrino and Antineutrino Oscillation at T2K

Author: Kirsty Elizabeth Duffy

Publisher: Springer

Published: 2017-09-13

Total Pages: 172

ISBN-13: 3319650408

This thesis reports the measurement of muon neutrino and antineutrino disappearance and electron neutrino and antineutrino appearance in a muon neutrino and antineutrino beam using the T2K experiment. It describes a result in neutrino physics that is a pioneering indication of charge-parity (CP) violation in neutrino oscillation; the first to be obtained from a single experiment. Neutrinos are some of the most abundant—but elusive—particles in the universe, and may provide a promising place to look for a potential solution to the puzzle of matter/antimatter imbalance in the observable universe. It has been firmly established that neutrinos can change flavour (or ‘oscillate’), as recognised by the 2015 Nobel Prize. The theory of neutrino oscillation allows for neutrinos and antineutrinos to oscillate differently (CP violation), and may provide insights into why our universe is matter-dominated. Bayesian statistical methods, including the Markov Chain Monte Carlo fitting technique, are used to simultaneously optimise several hundred systematic parameters describing detector, beam, and neutrino interaction uncertainties as well as the six oscillation parameters.

Weigh Them All!

Author: Sunny Vagnozzi

Publisher: Springer Nature

Published: 2020-08-13

Total Pages: 195

ISBN-13: 3030535029

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The three neutrinos are ghostly elementary particles that exist all across the Universe. Though every second billions of them fly through us, they are extremely hard to detect. We used to think they had no mass, but recently discovered that in fact they have a tiny mass. The quest for the neutrino mass scale and mass ordering (specifying how the three masses are distributed) is an extremely exciting one, and will open the door towards new physics operating at energy scales we can only ever dream of reaching on Earth. This thesis explores the use of measurements of the Cosmic Microwave Background (the oldest light reaching us, a snapshot of the infant Universe) and maps of millions of galaxies to go after the neutrino mass scale and mass ordering. Neutrinos might teach us something about the mysterious dark energy powering the accelerated expansion of the Universe, or about cosmic inflation, which seeded the initial conditions for the Universe. Though extremely baffling, neutrinos are also an exceptionally exciting area of research, and cosmological observations promise to reveal a great deal about these elusive particles in the coming years.

Artificial Intelligence For High Energy Physics

Author: Paolo Calafiura

Publisher: World Scientific

Published: 2022-01-05

Total Pages: 829

ISBN-13: 9811234043

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The Higgs boson discovery at the Large Hadron Collider in 2012 relied on boosted decision trees. Since then, high energy physics (HEP) has applied modern machine learning (ML) techniques to all stages of the data analysis pipeline, from raw data processing to statistical analysis. The unique requirements of HEP data analysis, the availability of high-quality simulators, the complexity of the data structures (which rarely are image-like), the control of uncertainties expected from scientific measurements, and the exabyte-scale datasets require the development of HEP-specific ML techniques. While these developments proceed at full speed along many paths, the nineteen reviews in this book offer a self-contained, pedagogical introduction to ML models' real-life applications in HEP, written by some of the foremost experts in their area.

Measurement of Higgs Boson Production Cross Sections in the Diphoton Channel

Author: Ahmed Tarek Abouelfadl Mohamed

Publisher: Springer Nature

Published: 2020-11-12

Total Pages: 305

ISBN-13: 3030595161

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This thesis presents the measurement of the Higgs boson cross section in the diphoton decay channel. The measurement relies on proton-proton collision data at a center-of-mass energy √s = 13 TeV recorded by the ATLAS experiment at the Large Hadron Collider (LHC). The collected data correspond to the full Run-2 dataset with an integrated luminosity of 139 fb-1. The measured cross sections are used to constrain anomalous Higgs boson interactions in the Effective Field Theory (EFT) framework. The results presented in this thesis represent a reduction by a factor 2 of the different photon and jet energy scale and resolution systematic uncertainties with respect to the previous ATLAS publication. The thesis details the calibration of electron and photon energies in ATLAS, in particular the measurement of the presampler energy scale and the estimation of its systematic uncertainty. This calibration was used to perform a measurement of the Higgs boson mass in the H → γγ and H → 4l channels using the 36 fb−1 dataset.

State Of The Art Of Neutrino Physics, The: A Tutorial For Graduate Students And Young Researchers

Author: Ereditato Antonio

Publisher: World Scientific

Published: 2018-03-22

Total Pages: 580

ISBN-13: 9813226102

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The neutrino is the most fascinating elementary particle due to its elusive nature and outstanding properties that have attracted the interest of generations of physicists since 1930, when it was first postulated by Wolfgang Pauli as a "desperate remedy" to explain the apparent energy violation in the beta decay. Many fundamental discoveries in particle physics had the neutrino involved in one way or another. To date, neutrino physics is still one of the hottest topics of modern particle physics. Key experiments and significant theoretical developments have contributed in building up what we can call now the Standard Model of Neutrino Physics. The aim of the book is to provide graduate students and young researchers a comprehensive tutorial in modern neutrino physics, specially tailored with emphasis on the educational aspects. It provides an overview of the basics and of recent achievements in the field, from both experimental and theoretical points of view. Contents: Preface A Brief History of Neutrino (A Bettini) Introduction to the Formalism of Neutrino Oscillations (G Fantini, A G Rosso, V Zema and F Vissani) Neutrino Oscillation Detectors and Methods (D Autiero) Solar Neutrinos and Matter Effects (A Y Smirnov) Atmospheric Neutrinos (K Okumura) Probing the Atmospheric Sector with Accelerator Experiments (C Pistillo and C Wilkinson) The Measurement of θ₁₃ with Reactors and Accelerators (F Di Lodovico) Neutrinos from Supernovae and Other Astrophysical Sources (K Scholberg) High-Energy Astrophysical Neutrinos (F Halzen) Sterile Neutrinos: An Introduction to Experiments (J Conrad and M Shaevitz) Dirac and Majorana Neutrinos, Double Beta Decay (J-L Vuilleumier) Low-Energy Neutrino Interactions (A M Szelc) Theory and Phenomenology of Mass Ordering and CP Violation (P Coloma and S Pascoli) Beyond the Neutrino Standard Model (J D Lykken) Readership: Students and researchers interested in high energy physics and/or astrophysics. Keywords: Neutrino;Neutrino Masses;Neutrino Oscillations;Neutrino Properties;Neutrino Sources;Neutrino Detectors;Massive NeutrinosReview: Key Features: Mix of tutorial and review articles Comprehensive review of the main aspects in one single book The various topical chapters are written by experts in the field

Searches for Dijet Resonances

Author: Lydia Audrey Beresford

Publisher: Springer

Published: 2018-09-04

Total Pages: 169

ISBN-13: 331997520X

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This book addresses one of the most intriguing mysteries of our universe: the nature of dark matter. The results presented here mark a significant and substantial contribution to the search for new physics, in particular for new particles that couple to dark matter. The first analysis presented is a search for heavy new particles that decay into pairs of hadronic jets (dijets). This pioneering analysis explores unprecedented dijet invariant masses, reaching nearly 7 TeV, and sets constraints on several important new physics models. The two subsequent analyses focus on the difficult low dijet mass region, down to 200 GeV, and employ a novel technique to efficiently gather low-mass dijet events. The results of these analyses transcend the long-standing constraints on dark matter mediator particles set by several existing experiments.

Neutrino Mass

Author: Guido Altarelli

Publisher: Springer

Published: 2004-02-24

Total Pages: 0

ISBN-13: 3540449019

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Reviews the current state of knowledge of neutrino masses and the related question of neutrino oscillations. After an overview of the theory of neutrino masses and mixings, detailed accounts are given of the laboratory limits on neutrino masses, astrophysical and cosmological constraints on those masses, experimental results on neutrino oscillations, the theoretical interpretation of those results, and theoretical models of neutrino masses and mixings. The book concludes with an examination of the potential of long-baseline experiments. This is an essential reference text for workers in elementary-particle physics, nuclear physics, and astrophysics.

Social Networking and Computational Intelligence

Author: Rajesh Kumar Shukla

Publisher: Springer Nature

Published: 2020-03-21

Total Pages: 789

ISBN-13: 9811520712

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This book presents a selection of revised and extended versions of the best papers from the First International Conference on Social Networking and Computational Intelligence (SCI-2018), held in Bhopal, India, from October 5 to 6, 2018. It discusses recent advances in scientific developments and applications in these areas.

Statistics for Nuclear and Particle Physicists

Author: Louis Lyons

Publisher: Cambridge University Press

Published: 1989-04-06

Total Pages: 244

ISBN-13: 1316101630

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This book, written by a non-statistician for non-statisticians, emphasises the practical approach to those problems in statistics which arise regularly in data analysis situations in nuclear and high-energy physics experiments. Rather than concentrating on formal proofs of theorems, an abundant use of simple examples illustrates the general ideas which are presented, showing the reader how to obtain the maximum information from the data in the simplest manner. Possible difficulties with the various techniques, and pitfalls to be avoided, are also discussed. Based on a series of lectures given by the author to both students and staff at Oxford, this common-sense approach to statistics will enable nuclear physicists to understand better how to do justice to their data in both analysis and interpretation.

Searches for Dijet Resonances

Author: Lydia Audrey Beresford

Publisher: Springer

Published: 2018-12-14

Total Pages: 0

ISBN-13: 9783030073657

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