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Measurement Of Neutrino Interactions And Three Flavor Neutrino Oscillations In The T2k Experiment
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Book Synopsis Measurement of Neutrino Interactions and Three Flavor Neutrino Oscillations in the T2K Experiment by : Tatsuya Kikawa
Download or read book Measurement of Neutrino Interactions and Three Flavor Neutrino Oscillations in the T2K Experiment written by Tatsuya Kikawa and published by Springer. This book was released on 2015-09-18 with total page 276 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is based on the author's work in the T2K long-baseline neutrino oscillation experiment, in which neutrinos are generated by a proton beam and are detected by near and far neutrino detectors. In order to achieve the precise measurement of the neutrino oscillation, an accurate understanding of the neutrino beam and the neutrino interaction is essential. Thus, the author measured the neutrino beam properties and the neutrino interaction cross sections using a near neutrino detector called INGRID and promoted a better understanding of them. Then, the author performed a neutrino oscillation analysis using the neutrino beam and neutrino interaction models verified by the INGRID measurements. As a result, some values of the neutrino CP phase are disfavored at the 90% confidence level. If the measurement precision is further improved, we may be able to discover the finite CP phase which involves the CP violation. Thus, this result is an important step towards the discovery of CP violation in the lepton sector, which may be the key to understanding the origin of the matter–antimatter asymmetry in the universe.
Book Synopsis Neutrino Oscillations by : Jennifer A. Thomas
Download or read book Neutrino Oscillations written by Jennifer A. Thomas and published by World Scientific. This book was released on 2008 with total page 274 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book reviews the status of a very exciting field OCo neutrino oscillations OCo at a very important time. The fact that neutrinos have mass has only been proved in the last few years and the acceptance of that fact has opened up a whole new area of study to understand the fundamental parameters of the mixing matrix. The book summarizes the results from all the experiments which have played a role in the measurement of neutrino oscillations and briefly describes the scope of some new planned experiments. Contributions include a theoretical introduction by Stephen Parke from FNAL, as well as articles from all the major experimental groups who have been pivotal in uncovering the nature of the neutrino mass. Sample Chapter(s). Chapter 1: Neutrino Oscillation Phenomenology (677 KB). Contents: Neutrino Oscillation Phenomenology (S J Parke); The Super-Kamiokande Experiment (C W Walter); Sudbury Neutrino Observatory (S J M Peeters & J R Wilson); Neutrino Oscillation Physics with KamLAND: Reactor Antineutrinos and Beyond (K M Heeger); K2K: KEK to Kamioka Long-Baseline Neutrino Oscillation Experiment (R J Wilkes); MINOS (P Vahle); The LSND and KARMEN Neutrino Oscillation Experiments (W C Louis); MiniBooNE (S J Brice); The OPERA Experiment in the CNGS Beam (D Autiero et al.); The T2K Experiment (D L Wark); The NO?A Experiment (G J Feldman); Double Chooz (G A Horton-Smith & T Lasserre); Daya Bay: A Sensitive Determination of ? 13 with Reactor Antineutrinos (K B Luk & Y Wang). Readership: Physicists, researchers and graduate students in high energy/nuclear and particle physics."
Book Synopsis Joint Three-flavour Oscillation Analysis of Muon Neutrino Disappearance and Electron Neutrino Appearance in the T2K Neutrino Beam by : Patrick de Perio
Download or read book Joint Three-flavour Oscillation Analysis of Muon Neutrino Disappearance and Electron Neutrino Appearance in the T2K Neutrino Beam written by Patrick de Perio and published by . This book was released on 2014 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis First Measurement of Neutrino and Antineutrino Oscillation at T2K by : Kirsty Elizabeth Duffy
Download or read book First Measurement of Neutrino and Antineutrino Oscillation at T2K written by Kirsty Elizabeth Duffy and published by Springer. This book was released on 2017-09-13 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Book Synopsis Flavor Oscillations With Sterile Neutrinosand In Dense Neutrino Environments by : David Hollander
Download or read book Flavor Oscillations With Sterile Neutrinosand In Dense Neutrino Environments written by David Hollander and published by . This book was released on 2015 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Many experiments have provided evidence for neutrino flavor oscillations, and consequently that neutrinos are in fact massive which is not predicted by the Standard Model. Many experiments have been built to constrain the parameters which determine flavor oscillations, and for only three flavors of neutrinos the mixing parameters are well known, aside from the CP violating phase for two mass hierarchies. Most experimental data can be well explained by mixing between three flavors of neutrinos, however oscillation anomalies from several experiments, most notably from LSND (Liquid Scintillator Neutrino Detector) have suggested that there may be additional flavors of neutrinos beyond those in the Standard Model. One of the focuses of this dissertation is the possibility of adding new flavors of right-handed neutrinos to the Standard Model to account for oscillation anomalies, and exploring the consequences of sterile neutrinos for other experiments.Sensitivities to a particular model of sterile neutrinos at the future Long-Baseline Neutrino Experiment will be determined, in which CP effects introduced by the sterile neutrinos play an important role. It will be demonstrated how, by combining data from the Long-Baseline Neutrino Experiment along with data from Daya Bay and T2K, it is possible to provide evidence for or rule out this model of sterile neutrinos.A chi-squared analysis is used to determine the significance of measuring the effects of sterile neutrinos in IceCube; it will be shown that it may be possible to extract evidence for sterile neutrinos from high energy atmospheric neutrinos in IceCube. Furthermore it will be demonstrated how measuring neutrino flavor ratios from astrophysical sources in IceCube can help to distinguish between the three flavor scenario and a beyond the Standard Model (BSM) scenario involving sterile neutrinos. Measuring astrophysical as well as atmospheric neutrinos can evince the existence of sterile neutrinos.Despite the fact that the mixing parameters for the three Standard Model neutrino flavors are well known, some implications of neutrino interactions for flavor oscillations are not well understood. Neutrinos can interact with one another in a similar way to how neutrinos interact with normal matter. Neutrino-neutrino forward scattering can lead to a flavor swap for the propagating neutrino, or the propagating neutrino can retain its original flavor. These interactions contribute an effective potential to the Hamiltonian describing the flavor evolution which depends on a background neutrino density. In normal matter the neutrino density is very low which allows for neutrino-neutrino interactions to be ignored, however these interactions can dominate over vacuum and normal matter interactions in very dense environments such as core-collapse supernovae and early universe scenarios.Neutrino-neutrino interactions give rise to terms quadratic in neutrino densities in the equations of motion, and can give rise to what is called collective oscillations resulting from interference with vacuum and normal matter effects. The non-linearity has made the problem of solving for collective oscillations analytically intractable without simplifying assumptions, and has made this a problem relegated to supercomputer simulations. This dissertation is concerned with analytic methods for solving the equations of motion for core-collapse neutrino propagation. It will be shown here that, by keeping only $\nu\nu$-interactions at initial distances outward from the supernova core, it is possible to solve the equations of motion by factorizing vacuum oscillations and the effects of $\nu\nu$-interactions. Furthermore, it will be shown how using this factorization scheme it is possible to predict where flavor oscillations become unstable. This is an important development because it can allow one to predict the neutrino flux in Earth experiments from core-collapse supernovae, while at the same time gaining an understanding of the underlying physics involved in complicated processes such as collective oscillations and the rapid growth of oscillations at medium range distances. Using the factorization ansatz together with a measured supernova spectrum it is possible in principle to determine the thermal spectra inside of the supernova.
Download or read book Neutrino Mass written by Guido Altarelli and published by Springer. This book was released on 2004-02-24 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Book Synopsis Neutrino Oscillations by : Fumihiko Suekane
Download or read book Neutrino Oscillations written by Fumihiko Suekane and published by Springer. This book was released on 2015-03-23 with total page 193 pages. Available in PDF, EPUB and Kindle. Book excerpt: Neutrino oscillation (N.O.) is the only firm evidence of the physics beyond the Standard Model of particle physics and is one of the hottest topics in elementary particle physics today. This book focuses on the N.O., from its history to the future prospects, from the basic theories to the experiments. Various phenomena of N.O. are described intuitively with thorough explanations of the fundamental physics behind well-known formulations. For example, while many textbooks start with a discussion of the mixing matrix, this book stresses that N.O. is caused by the transition amplitudes between different neutrino flavors, and that the purpose of N.O. experiments is to measure transition amplitudes and think of its origin. The current understanding of neutrino oscillation is also summarized using the most up-to-date measurements, including the recently measured neutrino mixing angle θ13, and the future prospects of N.O. studies are described as well. The level of this book makes it a bridge between introductory textbooks and scientific papers.
Book Synopsis Neutrino Oscillation Parameter Sensitivity in Future Long-Baseline Experiments by :
Download or read book Neutrino Oscillation Parameter Sensitivity in Future Long-Baseline Experiments written by and published by . This book was released on 2014 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt: The study of neutrino interactions and propagation has produced evidence for physics beyond the standard model and promises to continue to shed light on rare phenomena. Since the discovery of neutrino oscillations in the late 1990s there have been rapid advances in establishing the three flavor paradigm of neutrino oscillations. The 2012 discovery of a large value for the last unmeasured missing angle has opened the way for future experiments to search for charge-parity symmetry violation in the lepton sector. This thesis presents an analysis of the future sensitivity to neutrino oscillations in the three flavor paradigm for the T2K, NO A, LBNE, and T2HK experiments. The theory of the three flavor paradigm is explained and the methods to use these theoretical predictions to design long baseline neutrino experiments are described. The sensitivity to the oscillation parameters for each experiment is presented with a particular focus on the search for CP violation and the measurement of the neutrino mass hierarchy. The variations of these sensitivities with statistical considerations and experimental design optimizations taken into account are explored. The effects of systematic uncertainties in the neutrino flux, interaction, and detection predictions are also considered by incorporating more advanced simulations inputs from the LBNE experiment.
Book Synopsis Observation of ν_μ→ν_e Oscillation in the T2K Experiment by : Kei Ieki
Download or read book Observation of ν_μ→ν_e Oscillation in the T2K Experiment written by Kei Ieki and published by Springer. This book was released on 2018-03-31 with total page 199 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this thesis the author contributes to the analysis of neutrino beam data collected between 2010 and 2013 to identify νμ→νe events at the Super-Kamiokande detector. In particular, the author improves the pion–nucleus interaction uncertainty, which is one of the dominant systematic error sources in T2K neutrino oscillation measurement. In the thesis, the measurement of νμ→νe oscillation in the T2K (Tokai to Kamioka) experiment is presented and a new constraint on δCP is obtained. This measurement and the analysis establish, at greater than 5σ significance, the observation of νμ→νe oscillation for the first time in the world. Combining the T2K νμ→νe oscillation measurement with the latest findings on oscillation parameters including the world average value of θ13 from reactor experiments, the constraint on the value of δCP at the 90% confidence level is obtained. This constraint on δCP is an important step towards the discovery of CP violation in the lepton sector.
Book Synopsis Study of Neutrino Interactions in the Near Detector of T2K by : Chiraz Ferchichi
Download or read book Study of Neutrino Interactions in the Near Detector of T2K written by Chiraz Ferchichi and published by . This book was released on 2014 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The T2K experiment studies the properties of neutrinos, particularly neutrino oscillations. It takes place in Japan and uses a muonic neutrino beam produced by the J-PARC accelerator complex, a near detector, ND280 on the J-PARC site in order to characterise the beam, and a far detector, Super-Kamiokande 295 km away in order to measure the neutrino oscillations. The near detector is also used to study the neutrino interactions and the goal of this thesis is the measurement of muonic neutrino deep inelastic scattering cross sections.The thesis first introduces neutrino physics, then the T2K experiment and more particularly the time projection chambers of the near detector, and its data quality checking that I was in charge of. The analysis is based on the T2K data recorded until 2013. The selection of charged current muonic neutrino interactions is then presented, as well as a preliminary study of the selection of charged current muonic neutrino interactions with the production of a neutral pion. A criterion on track multiplicity allows enriching the former sample in interactions corresponding to a neutrino deep inelastic scattering. Finally a fit, first validated on simulated data, allows the extraction of the muonic neutrino deep inelastic scattering cross sections.
Book Synopsis Predicting the T2K Neutrino Flux and Measuring Oscillation Parameters by : Tomislav Vladisavljevic
Download or read book Predicting the T2K Neutrino Flux and Measuring Oscillation Parameters written by Tomislav Vladisavljevic and published by Springer Nature. This book was released on 2020-09-14 with total page 206 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis reports the calculation of neutrino production for the T2K experiment; the most precise a priori estimate of neutrino production that has been achieved for any accelerator-based neutrino oscillation experiment to date. The production of intense neutrino beams at accelerator facilities requires exceptional understanding of chains of particle interactions initiated within extended targets. In this thesis, the calculation of neutrino production for T2K has been improved by using measurements of particle production from a T2K replica target, taken by the NA61/SHINE experiment. This enabled the reduction of the neutrino production uncertainty to the level of 5%, which will have a significant impact on neutrino oscillation and interaction measurements by T2K in the coming years. In addition to presenting the revised flux calculation methodology in an accessible format, this thesis also reports a joint T2K measurement of muon neutrino and antineutrino disappearance, and the accompanying electron neutrino and antineutrino appearance, with the updated beam constraint.
Book Synopsis The Analysis of Nuclear Materials and Their Environments by : Claude André Degueldre
Download or read book The Analysis of Nuclear Materials and Their Environments written by Claude André Degueldre and published by Springer. This book was released on 2017-10-11 with total page 308 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides an overview of passive and interactive analytical techniques for nuclear materials. The book aims to update readers on new techniques available and provide an introduction for those who are new to the topic or are looking to move into actinides and nuclear materials science. The characterization of actinide species and radioactive materials is vital for understanding how these elements and radioactive isotopes are formed and behave and how these materials can be improved. The analysis of the actinides or radioactive materials goes beyond spent fuel science to the applicable complete fuel cycle and including analysis of reactor materials.
Book Synopsis Observation of ν_μ→ν_e Oscillation in the T2K Experiment by : Kei Ieki
Download or read book Observation of ν_μ→ν_e Oscillation in the T2K Experiment written by Kei Ieki and published by Springer. This book was released on 2015-12-24 with total page 205 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this thesis the author contributes to the analysis of neutrino beam data collected between 2010 and 2013 to identify νμ→νe events at the Super-Kamiokande detector. In particular, the author improves the pion–nucleus interaction uncertainty, which is one of the dominant systematic error sources in T2K neutrino oscillation measurement. In the thesis, the measurement of νμ→νe oscillation in the T2K (Tokai to Kamioka) experiment is presented and a new constraint on δCP is obtained. This measurement and the analysis establish, at greater than 5σ significance, the observation of νμ→νe oscillation for the first time in the world. Combining the T2K νμ→νe oscillation measurement with the latest findings on oscillation parameters including the world average value of θ13 from reactor experiments, the constraint on the value of δCP at the 90% confidence level is obtained. This constraint on δCP is an important step towards the discovery of CP violation in the lepton sector.
Book Synopsis Measurement of Neutrino and Antineutrino Oscillations by the T2K Experiment Including a New Additional Sample of Νe Interactions at the Far Detector by :
Download or read book Measurement of Neutrino and Antineutrino Oscillations by the T2K Experiment Including a New Additional Sample of Νe Interactions at the Far Detector written by and published by . This book was released on 2017 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Neutrino Oscillations And Their Origin - Proceedings Of The Fifth International Workshop by : Yoichiro Suzuki
Download or read book Neutrino Oscillations And Their Origin - Proceedings Of The Fifth International Workshop written by Yoichiro Suzuki and published by World Scientific. This book was released on 2005-06-23 with total page 522 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume brings together international experts in diverse areas of physics to discuss recent progress in the experimental and theoretical study of neutrino oscillations.Readers are brought up to date with the latest developments in important neutrino experiments, and the associated progress in theory is summarized. The principal projects worldwide, such as Super-Kamiokande, SNO, KamLAND, are considered, and contributions also report on future experiments, including JPARC, OPERA, and MINOS.Several other related topics, such as dark matter, double beta decay, lepton flavor violation, and cosmology, are discussed, reflecting the wide-ranging specializations of many contributors outside of pure neutrino physics.
Book Synopsis Handbook of Particle Detection and Imaging by : Claus Grupen
Download or read book Handbook of Particle Detection and Imaging written by Claus Grupen and published by Springer Science & Business Media. This book was released on 2012-01-08 with total page 1251 pages. Available in PDF, EPUB and Kindle. Book excerpt: The handbook centers on detection techniques in the field of particle physics, medical imaging and related subjects. It is structured into three parts. The first one is dealing with basic ideas of particle detectors, followed by applications of these devices in high energy physics and other fields. In the last part the large field of medical imaging using similar detection techniques is described. The different chapters of the book are written by world experts in their field. Clear instructions on the detection techniques and principles in terms of relevant operation parameters for scientists and graduate students are given.Detailed tables and diagrams will make this a very useful handbook for the application of these techniques in many different fields like physics, medicine, biology and other areas of natural science.
Book Synopsis Measurement of Pion-Carbon Cross Sections at DUET and Measurement of Neutrino Oscillation Parameters at the T2K Experiment by : Elder Sebastian Pinzon Guerra
Download or read book Measurement of Pion-Carbon Cross Sections at DUET and Measurement of Neutrino Oscillation Parameters at the T2K Experiment written by Elder Sebastian Pinzon Guerra and published by . This book was released on 2018 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Tokai-to-Kamioka (T2K) experiment is a long baseline neutrino oscillation experiment. An intense muon neutrino (or antineutrino) beam is produced at the Japan Proton Accelerator Research Complex (J-PARC) by protons hitting a graphite target. The neutrinos are measured 280 m from the target, and again 295 km across Japan using the Super-Kamiokande detector. This allows for the study of the neutrino oscillations in four channels: the electron neutrino and antineutrino appearance, and muon neutrino and antineutrino disappearance. In T2K, neutrinos are observed primarily via charged current quasi-elastic scattering (CCQE) interactions, as well as charged current single pion (CC1) production. The pion is free to interact inside and outside the nucleus primarily via absorption and charge exchange processes. Reducing the uncertainties on these cross sections reduces the systematic uncertainties for neutrino oscillation measurements. The Dual Use Experiment at TRIUMF (DUET) was conducted to address this issue. This thesis describes the recent results from DUET: the most precise measurements of absorption and charge exchange cross sections of pion on carbon for the momentum range of 201.6~295.1 MeV/c. These DUET measurements, along with existing pion-nucleus scattering data for different atomic nuclei, are used to improve the cascade model that simulates pion-nucleus scattering in T2K, and to reduce the associated systematic uncertainties. These improvements are used in a Markov Chain Monte Carlo neutrino oscillation analysis of the T2K Run 1-8 data, corresponding to 14.7x10e20 protons-on-target in neutrino mode and 7.6x10e20 in antineutrino mode. As a result, the most precise measurement of the parameters that govern the neutrino oscillation phenomenon is obtained. In particular, the values indicative of no matter-antimatter asymmetry (CP-conservation) are excluded at the 95.4% (2-sigma) level. This constitutes the world-leading constraint for CP-violation in the leptonic sector.
