Download or read book Semi inclusive Neutral Current Neutral Pion Production Selection at the NOvA numi Off axis Electron Neutrino Appearance Near Detector Using Prong Level Convolutional Neural Networks written by Alan Javier Cedeno and published by . This book was released on 2018 with total page 123 pages. Available in PDF, EPUB and Kindle. Book excerpt: The NONA neutrino experiment based in Fermilab is designed to measure ! e neutrino oscillations. This experiment will give us insight into the properties of massive neutrinos. Neutral current (NC) ;e neutral pion production events can mimic the ! e oscillation signal and therefore are an important background for NONA to understand. Neutral pions decay into two photons which can fake a single electron shower ( e appearance signal) in two ways: either the 2 photons can merge together or one of them may escape detection. In order to constrain this background, NONA utilizes the Near Detector to measure neutral current 0 neutrino interactions. In this analysis, neutrino-Nucleus ( !N) NC 0 interactions with total pion energy greater then 0.3 GeV are studied by selecting two prong events with two final state photons as determined by prong based Convolutional Visual Networks (CVN). The analysis is performed on 3.54x1021 Protons On Target (POT) of NONA Near Detector simulated data and compared to 8.09x1020 POT of data. Optimization of the selection based on fractional cross-section uncertainty and an initial energy resolution study of the final sample are presented. The final 2 prong selection using prong based CVN gave a purity of 74%, selection efficiency of 1.8%, and an expected (NC) ;e neutral pion cross section of 15.2%.

Download or read book Neutrino Mixing written by Samoil Mikhelevich Bilenʹkiĭ and published by World Scientific Publishing Company Incorporated. This book was released on 2000 with total page 325 pages. Available in PDF, EPUB and Kindle. Book excerpt: The idea of neutrino oscillations was suggested in 1957 by B Pontecorvo, immediately after the discovery of parity violation in b-decay. It took more than 40 years and the efforts of many experimental teams before the first convincing evidence that neutrinos are massive and mixed particles came to light. A central figure in this enthusiastic endeavour to unravel neutrino properties is Samoil M Bilenky, from his early collaboration (in Dubna) with Pontecorvo to his most recent attempts at analyzing and reconciling, in a coherent theoretical framework, the results of many difficult experiments. These aim at the measurement of neutrino masses and oscillations: from the various solar neutrino experiments, via the LSND accelerator experiment, to the most suggestive atmospheric neutrino experiments. This book, which celebrates the seventieth birthday of Samoil M Bilenky, offers a fairly complete overview of theoretical issues and experimental facts about our present understanding of neutrino physics and its implications for astrophysical and cosmological problems. Indeed, some contributions are devoted to more general topics within and beyond the Standard Model, from lattice QCD to dark matter and supersymmetric models.

Download or read book Hadronic Structure written by José L. Goity and published by World Scientific. This book was released on 2001 with total page 347 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume contains lectures presented at the 14th Annual Hampton University Graduate Studies at the Continuous Electron Beam Accelerator Facility (HUGS at CEBAF), that took place at Jefferson Lab and Hampton University from June 1st to 18th, 1999. The programme was focused on the structure of hadrons from the low to the high energy regimes, including a balance of theory and experiment, and emphasized topics in electron scattering on the nucleon and nuclei.

Download or read book Measurement of the Top Quark Mass written by Tzu-Chung Frank Hsieh and published by . This book was released on 1998 with total page 292 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Large Hadron Collider written by Don Lincoln and published by JHU Press. This book was released on 2014-10 with total page 238 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lincoln, a senior scientist at Fermi National Accelerator Laboratory and adjunct professor of physics at Notre Dame, gives readers an insider's view of the Hadron Collider from its conception, through its early discoveries and difficulties, to its greatest triumph, the discovery of the Higgs boson.

Download or read book Low Energy Electrons written by Oddur Ingólfsson and published by CRC Press. This book was released on 2019-04-23 with total page 254 pages. Available in PDF, EPUB and Kindle. Book excerpt: Low-energy electrons are ubiquitous in nature and play an important role in natural phenomena as well as many potential and current industrial processes. Authored by 16 active researchers, this book describes the fundamental characteristics of low-energy electron–molecule interactions and their role in different fields of science and technology, including plasma processing, nanotechnology, and health care, as well as astro- and atmospheric physics and chemistry. The book is packed with illustrative examples, from both fundamental and application sides, features about 130 figures, and lists over 800 references. It may serve as an advanced graduate-level study course material where selected chapters can be used either individually or in combination as a basis to highlight and study specific aspects of low-energy electron–molecule interactions. It is also directed at researchers in the fields of plasma physics, nanotechnology, and radiation damage to biologically relevant material (such as in cancer therapy), especially those with an interest in high-energy-radiation-induced processes, from both an experimental and a theoretical point of view.

Download or read book Muon Neutrino Disappearance in NOvA with a Deep Convolutional Neural Network Classifier written by and published by . This book was released on 2016 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The NuMI Off-axis Neutrino Appearance Experiment (NOvA) is designed to study neutrino oscillation in the NuMI (Neutrinos at the Main Injector) beam. NOvA observes neutrino oscillation using two detectors separated by a baseline of 810 km; a 14 kt Far Detector in Ash River, MN and a functionally identical 0.3 kt Near Detector at Fermilab. The experiment aims to provide new measurements of [Delta]m2 and [theta]23 and has potential to determine the neutrino mass hierarchy as well as observe CP violation in the neutrino sector. Essential to these analyses is the classification of neutrino interaction events in NOvA detectors. Raw detector output from NOvA is interpretable as a pair of images which provide orthogonal views of particle interactions. A recent advance in the field of computer vision is the advent of convolutional neural networks, which have delivered top results in the latest image recognition contests. This work presents an approach novel to particle physics analysis in which a convolutional neural network is used for classification of particle interactions. The approach has been demonstrated to improve the signal efficiency and purity of the event selection, and thus physics sensitivity. Early NOvA data has been analyzed (2.74×1020 POT, 14 kt equivalent) to provide new best- fit measurements of sin2([theta]23) = 0.43 (with a statistically-degenerate compliment near 0.60) and.

Download or read book Study of Neutrino induced Neutral Current Neutral Pion Production in the T2K Near Detector written by Samantha Short and published by . This book was released on 2013 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Study of Neutrino electron Scattering and Coherent Neutral Pion Production written by Mark Fielding Bregman and published by . This book was released on 1984 with total page 107 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Single Neutral Pion Production in Charged Current and Neutral Current Neutrino Interactions written by and published by . This book was released on 1988 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Single Pion Production in Charged and Neutral Current Neutrino Interactions written by Gaston S. Ormazabal and published by . This book was released on 1985 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Observation of Electron Neutrino Appearance in the NuMI Beam with the NOvA Experiment written by and published by . This book was released on 2015 with total page 245 pages. Available in PDF, EPUB and Kindle. Book excerpt: NOvA is a long-baseline neutrino oscillation experiment that uses two functionally identical detectors separated by 810 kilometers at locations 14 milliradians o -axis from the NuMI muon neutrino beam at Fermilab. At these locations the beam energy peaks at 2 GeV. This baseline is the longest in the world for an accelerator-based neutrino oscillation experiment, which enhances the sensitivity to the neutrino mass ordering. The experiment studies oscillations of the muon neutrino and anti-neutrino beam that is produced. Both detectors completed commissioning in the summer of 2014 and continue to collect data. One of the primary physics goals of the experiment is the measurement of electron neutrino appearance in the muon neutrino beam which yields measurements of the oscillation parameters sin22[theta]13, [delta], and the neutrino mass ordering within the standard model of neutrino oscillations. This thesis presents the analysis of data collected between February 2014 and May 2015, corresponding to 3.52 X 1020 protons-on-target. In this first analysis NOvA recorded 6 electron neutrino candidates which is a 3.3[sigma] observation of electron neutrino appearance. The T2K experiment performs the same measurement on a baseline of 295 kilometers and has a 1 [sigma] preference for the normal mass ordering over the inverted ordering over the phase space of the CP violating parameter [delta], which is also weakly seen in the NOvA result. By the summer of 2016 NOvA will triple its statistics due to increased beam power and a completed detector. If electron neutrinos continue to be observed at the current rate NOvA will be able to establish a mass ordering preference at a similar con dence level to T2K.

Download or read book Single Neutral Pion Production by Charged current bar nu mu Interactions on Hydrocarbon at langle E nu rangle written by and published by . This book was released on 2015 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt: We studied single neutral pion production via muon antineutrino charged-current interactions in plastic scintillator (CH) using the MINERvA detector exposed to the NuMI low-energy, wideband antineutrino beam at Fermilab. Measurement of this process constrains models of neutral pion production in nuclei, which is important because the neutral-current analog is a background for appearance oscillation experiments. Furthermore, the differential cross sections for ?0 momentum and production angle, for events with a single observed ?0 and no charged pions, are presented and compared to model predictions. These results comprise the first measurement of the ?0 kinematics for this process.

Download or read book Improved Measurement of Neutral Current Coherent pi 0 Production on Carbon in a Few GeV Neutrino Beam written by and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The SciBooNE Collaboration reports a measurement of neutral current coherent neutral pion production on carbon by a muon neutrino beam with average energy 0.8 GeV. The separation of coherent from inclusive neutral pion production has been improved by detecting recoil protons from resonant neutral pion production. We measure the ratio of the neutral current coherent neutral pion production to total charged current cross sections to be (1.16 +/- 0.24) x 10-2. The ratio of charged current coherent pion to neutral current coherent pion production is calculated to be 0.14+0.30 -0.28, using our published charged current coherent pion measurement.

Download or read book A Measurement of Neutrino Induced Charged Current Neutral Pion Production written by and published by . This book was released on 2010 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Single Neutral Pion Production in Neutrino Interactions written by and published by . This book was released on 1976 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Electron Neutrino Appearance in the NO nu A Experiment written by and published by . This book was released on 2016 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The NuMI Off-Axis $\nu_e$ Appearance (NO$\nu$A) experiment is a long baseline, off-axis neutrino oscillation experiment. It is designed to search for oscillations of $\nu_\mu$ to $\nu_e$ by comparing measurements of the NuMI beam composition in two detectors. These two detectors are functionally identical, nearly fully-active liquid-scintillator tracking calorimeters and located at two points along the beam line to observe the neutrinos. The Near Detector (ND), situated \unit[1]{km} away from the proton target at Fermilab, measures neutrinos prior to oscillation. Then the Far Detector (FD), located 810 km away at Ash River, Minnesota, measures the neutrinos after they have traveled and potentially oscillated. The neutrino beam is generated at Fermi Nation al Accelerator Laboratory in Batavia, Illinois by the Neutrinos at the Main Injector (NuMI) facility. \\~\\ By observing the $\nu_\mu\to\nu_e$ oscillation, NO$\nu$A is capable of measuring the neutrino mass hierarchy, CP violation and the octant of mixing angle $\theta_{23}$. This thesis presents the first measurement of $\nu_e$ appearance in the NO$\nu$A detectors with $3.52\times10^{20}$ protons-on-target (POT) data accumulated from February 2014 till May 2015. In this analysis the primary $\nu_e$ CC particle selection LID observes 6 $\nu_e$ like events in the far detector with a background prediction of $0.99\pm0.11$ (syst.), which corresponds to a $3.3\sigma$ excess over the no-oscillation hypothesis. This results disfavors $0.1\pi