The Theory of Beta-Decay
The Theory of Beta-Decay

Author: C. Strachan

Publisher: Elsevier

Published: 2016-07-29

Total Pages: 222

ISBN-13: 1483280403

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The Theory of Beta-Decay covers the formulas, theories, probabilities, and spectra of beta-decay. This book is divided into 2 parts compassing 12 chapters, and starts with the introduction to the neutrino and the quantum theoretical background, explaining the basic phenomenon of beta-decay and the emission of electrons. The subsequent chapters deal with the interaction and the transition probability, as well as formulas of solutions. These topics are followed by discussions on the developments in the non-conservation of parity and helicity, the two-component theory of the neutrino, possible invariance under time-reversal and charge conjugation, leptonic number of lepton charge, and muon decay and other theories. Other chapters describe the tentative theory of beta-radiation, the detection of the free neutrino, and the selection rules for the beta-disintegration. The last chapters consider questions and experimental test about beta-decay. The chapters also look into the theories and helicity of neutrino, the theory of the Fermi interaction, and the test of the nature of the vector interaction in beta-decay This book will be of value to physicists and researchers in the allied fields.

Nobel And Lasker Laureates Of Chinese Descent: In Literature And Science
Nobel And Lasker Laureates Of Chinese Descent: In Literature And Science

Author: Todd S Ing

Publisher: World Scientific

Published: 2019-01-30

Total Pages: 310

ISBN-13: 9814704636

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'Ranging from original photographs to pictures from university archives, the insightful curation of images in this book further enhances the reading experience … An authoritative and comprehensive synthesis of both primary and secondary sources, Nobel and Lasker Laureates of Chinese Descent offers unparalleled insight into the most eminent twentieth-century physicians and scientists of Chinese descent. The book is of broad interest to anyone interested in the history of science and medicine, especially when there is a growing recognition of both the importance of diversity in STEM and the impact of Chinese research on the global scientific community.'Current Biology MagazineAt the turn of the 20th century, the Boxer Uprising marked the culmination of a violent and tragic chapter in Chinese history. Out of the ashes of this calamity, scholarships funded by Boxer Indemnity and many others fostered some of the greatest minds in the Chinese modern era. This book celebrates notable luminary scholars of Chinese descent, with a special focus on 1 Wolf Prize, 4 Lasker, and 11 Nobel laureates spanning a wide range of disciplines in both literature and science. We visit the struggles of pioneers Tsung-Dao Lee and Chen-Ning Yang as the first Chinese Nobel prize recipients for characterizing fundamental laws in elementary-particle physics. Their pioneering works have paved the way for many to follow. We chronicle the careers of more recent recipients, including Mo Yan and his celebration of peasant life in China through the lens of hallucinatory realism. We delve into the lives of these Laureates, witness the obstacles that they overcame, and testify to their lasting contributions to humankind. In recounting the intellectual struggles and triumphs of these pioneers of Chinese heritage, we hope to inspire the next generation of scholars in literature and science worldwide in the hope that they too might become laureates one day.

Comets And Their Origin
Comets And Their Origin

Author: Uwe Meierhenrich

Publisher: John Wiley & Sons

Published: 2015-01-30

Total Pages: 352

ISBN-13: 3527412786

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Divided into two parts, the first four chapters of Comets and their Origin refer to comets and their formation in general, describing cometary missions, comet remote observations, astrochemistry, artificial comets, and the chirality phenomenon. The second part covers the cometary ROSETTA mission, its launch, journey, scientific objectives, and instrumentations, as well as the landing scenario on a cometary nucleus. Along the way, the author presents general questions concerning the origin of terrestrial water and the molecular beginnings of life on Earth, as well as how the instruments used on a space mission like ROSETTA can help answer them. The text concludes with a chapter on what scientists expect from the ROSETTA mission and how its data will influence our life on Earth. As a result, the author elucidates highly topical and fascinating knowledge to scientists and students of various scientific backgrounds, allowing them to work with ROSETTA's data.

History of Original Ideas and Basic Discoveries in Particle Physics
History of Original Ideas and Basic Discoveries in Particle Physics

Author: Harvey B. Newman

Publisher: Springer Science & Business Media

Published: 2012-12-06

Total Pages: 986

ISBN-13: 1461311470

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The International Conference on the History of Original Ideas and Basic Discoveries, held at the "Ettore Majorana" Centre for Scientific Culture in Erice, Sicily, July 27-August 4, 1994, brought together sixty of the leading scientists including many Nobel Laureates in high energy physics, principal contributors in other fields of physics such as high Tc superconductivity, particle accelerators and detector instrumentation, and thirty-six talented younger physicists selected from candidates throughout the world. The scientific program, including 49 lectures and a discussion session on the "Status and Future Directions in High Energy Physics" was inspired by the conference theme: The key experimental discoveries and theoretical breakthroughs of the last 50 years, in particle physics and related fields, have led us to a powerful description of matter in terms of three quark and three lepton families and four fundamental interactions. The most recent generation of experiments at e+e- and proton-proton colliders, and corresponding advances in theoretical calculations, have given us remarkably precise determinations of the basic parameters of the electroweak and strong interactions. These developments, while showing the striking internal consistency of the Standard Model, have also sharpened our view of the many unanswered questions which remain for the next generation: the origin and pattern of particle masses and families, the unification of the interactions including gravity, and the relation between the laws of physics and the initial conditions of the universe.

Domain Generalization with Machine Learning in the NOvA Experiment
Domain Generalization with Machine Learning in the NOvA Experiment

Author: Andrew T.C. Sutton

Publisher: Springer Nature

Published: 2023-12-10

Total Pages: 174

ISBN-13: 3031435834

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This thesis presents significant advances in the use of neural networks to study the properties of neutrinos. Machine learning tools like neural networks (NN) can be used to identify the particle types or determine their energies in detectors such as those used in the NOvA neutrino experiment, which studies changes in a beam of neutrinos as it propagates approximately 800 km through the earth. NOvA relies heavily on simulations of the physics processes and the detector response; these simulations work well, but do not match the real experiment perfectly. Thus, neural networks trained on simulated datasets must include systematic uncertainties that account for possible imperfections in the simulation. This thesis presents the first application in HEP of adversarial domain generalization to a regression neural network. Applying domain generalization to problems with large systematic variations will reduce the impact of uncertainties while avoiding the risk of falsely constraining the phase space. Reducing the impact of systematic uncertainties makes NOvA analysis more robust, and improves the significance of experimental results.

The Physics of Neutrino Interactions
The Physics of Neutrino Interactions

Author: M. Sajjad Athar

Publisher: Cambridge University Press

Published: 2020-12-03

Total Pages:

ISBN-13: 110896348X

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The study of neutrinos and their interaction with matter has made many important contributions to our present knowledge of physics. This advanced text introduces neutrino physics and presents a theoretical framework for describing relativistic particles. It gives a pedagogical description of the neutrino, its properties, the standard model of electroweak interactions, and neutrino scattering from leptons and nucleons. Focusing on the role of nuclear effects, the discussion extends to various processes of quasielastic, inelastic, and deep inelastic scattering from nucleons and nuclei. Neutrino sources, detection and oscillation, along with the role of neutrinos in astrophysics and motivation for the need of physics beyond the standard model are discussed in detail. This topical book will stimulate new ideas and avenues for research, and will form a valuable resource for advanced students and researchers working in the field of neutrino physics.

New Era For Cp Asymmetries: Axions And Rare Decays Of Hadrons And Leptons
New Era For Cp Asymmetries: Axions And Rare Decays Of Hadrons And Leptons

Author: Ikaros I Bigi

Publisher: World Scientific

Published: 2021-07-14

Total Pages: 354

ISBN-13: 9813233095

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This book is dedicated to Lev Okun, who passed away in November 2015. He was a true pioneer in probing fundamental dynamics.The book has two objectives. First is to showcase Okun's impact for decades since 1963, when he published his remarkable book Weak Interaction of Elementary Particles. Second is to present the current progress of our scientific community in the studies of our Universe. New directions and possible future developments are discussed, often using the past as a guide. The authors mostly focus on CP asymmetries in the transitions of hadrons and leptons, but they also discuss their rare decays, and talk about axions and supersymmetry, and possible connections with dark matter, extra dimensions, baryogenesis and multiverse.This book is suitable for readers who know quantum mechanics and quantum field theories in general.