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Very Long Baseline Neutrino Oscillation Experiments For Precise Measurments Of Oscillation Parameters And Search For N Mu Yields N Epsilon
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Book Synopsis VERY LONG BASELINE NEUTRINO OSCILLATION EXPERIMENTS FOR PRECISE MEASURMENTS OF OSCILLATION PARAMETERS AND SEARCH FOR N MU YIELDS N EPSILON. by :
Download or read book VERY LONG BASELINE NEUTRINO OSCILLATION EXPERIMENTS FOR PRECISE MEASURMENTS OF OSCILLATION PARAMETERS AND SEARCH FOR N MU YIELDS N EPSILON. written by and published by . This book was released on 2002 with total page 102 pages. Available in PDF, EPUB and Kindle. Book excerpt: Brookhaven National Laboratory and collaborators started a neutrino working group to identify new opportunities in the field of neutrino oscillations and explore how our laboratory facilities can be used to explore this field of research. The memo to the working group and the charge are included in Appendix I. This report is the result of the deliberations of the working group. Previously, we wrote a letter of intent to build a new high intensity neutrino beam at BNL. A new intense proton beam will be used to produce a conventional horn focused neutrino beam directed at a detector located in either the Homestake mine in Lead, South Dakota at 2540 km or the Waste Isolation Pilot Plant (WIPP) in Carlsbad, NM at 2880 km. As a continuation of the study that produced the letter of intent, this report examines several items in more detail. We mainly concentrate on the use of water Cherenltov detectors because of their size, resolution, and background rejection capability, and cost. We examine the prospects of building such a detector in the Homestake mine. The accelerator upgrade will be carried out in phases. We expect the first phase to yield a 0.4 MW proton beam and the second phase to result in a 1.0 MW beam. The details of this upgrade will be reported in a companion report. In this report we assume accelerator intensity of 1 MW for calculating event rates and spectra. We also assume a total experimental duration of 5 years with running time of 107 seconds per year. We examine the target station and the horn produced neutrino beam with focus on two topics: target and horn design for a 1 MW beam and the broad band spectrum of neutrinos from a 28 GeV proton beam.
Book Synopsis Precision Measurements of Long-Baseline Neutrino Oscillation at LBNF. by :
Download or read book Precision Measurements of Long-Baseline Neutrino Oscillation at LBNF. written by and published by . This book was released on 2015 with total page 3 pages. Available in PDF, EPUB and Kindle. Book excerpt: In a long-baseline neutrino oscillation experiment, the primary physics objectives are to determine the neutrino mass hierarchy, to determine the octant of the neutrino mixing angle [theta]23, to search for CP violation in neutrino oscillation, and to precisely measure the size of any CP-violating effect that is discovered. This presentation provides a brief introduction to these measurements and reports on efforts to optimize the design of a long-baseline neutrino oscillation experiment, the status of LBNE, and the transition to an international collaboration at LBNF.
Book Synopsis Future Long-Baseline Neutrino Oscillations by :
Download or read book Future Long-Baseline Neutrino Oscillations written by and published by . This book was released on 2015 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract is not provided.
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 A Study of Parameter Measurement in a Long-baseline Neutrino Oscillation Experiment by : David Anthony Petyt
Download or read book A Study of Parameter Measurement in a Long-baseline Neutrino Oscillation Experiment written by David Anthony Petyt and published by . This book was released on 1998 with total page 526 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Long Baseline Neutrino Oscillation Experiment at the AGS. Physics Design Report by :
Download or read book Long Baseline Neutrino Oscillation Experiment at the AGS. Physics Design Report written by and published by . This book was released on 1995 with total page 270 pages. Available in PDF, EPUB and Kindle. Book excerpt: The authors present a design for a multi-detector long baseline neutrino oscillation experiment at the BNL AGS. It has been approved by the BNL-HENP-PAC as AGS Experiment 889. The experiment will search for oscillations in the [nu]{sub [mu]}, disappearance channel and the [nu]{sub {mu}} ↔ [nu]{sub e} appearance channel by means of four identical neutrino detectors located 1, 3, 24, and 68km from the AGS neutrino source. Observed depletion of the [nu]{sub {mu}} flux (via quasi-elastic muon neutrino events, [nu]{sub {mu}}n → {mu}−p) in the far detectors not attended by an observed proportional increase of the [nu]{sub e} flux (via quasi-elastic electron neutrino events, [nu]{sub e}n → e−p) in those detectors will be prima facie evidence for the oscillation channel [nu]{sub {mu}} ↔ [nu]{sub {tau}}. The experiment is directed toward exploration of the region of the neutrino oscillation parameters [Delta]m2 and sin22[theta], suggested by the Kamiokande and IMB deep underground detectors but it will also explore a region more than two orders of magnitude larger than that of previous accelerator experiments. The experiment will run in a mode new to BNL. It will receive the fast extracted proton beam on the neutrino target approximately 20 hours per day when the AGS is not filling RHIC. A key aspect of the experimental design involves placing the detectors 1.5 degrees off the center line of the neutrino beam, which has the important advantage that the central value of the neutrino energy (≈ 1 GeV) and the beam spectral shape are, to a good approximation, the same in all four detectors. The proposed detectors are massive, imaging, water Cherenkov detectors similar in large part to the Kamiokande and IMB detectors. The design has profited from their decade-long experience, and from the detector designs of the forthcoming SNO and SuperKamiokande detectors.
Book Synopsis Measuring Neutrino Oscillation Parameters Using $\nu_\mu$ Disappearance in MINOS. by :
Download or read book Measuring Neutrino Oscillation Parameters Using $\nu_\mu$ Disappearance in MINOS. written by and published by . This book was released on 2011 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt: MINOS is a long-baseline neutrino oscillation experiment. It consists of two large steel-scintillator tracking calorimeters. The near detector is situated at Fermilab, close to the production point of the NuMI muon-neutrino beam. The far detector is 735 km away, 716m underground in the Soudan mine, Northern Minnesota. The primary purpose of the MINOS experiment is to make precise measurements of the 'atmospheric' neutrino oscillation parameters ([Delta]m{sub atm}2 and sin2 2[theta]{sub atm}). The oscillation signal consists of an energy-dependent deficit of [nu]{sub {mu}} interactions in the far detector. The near detector is used to characterize the properties of the beam before oscillations develop. The two-detector design allows many potential sources of systematic error in the far detector to be mitigated by the near detector observations. This thesis describes the details of the [nu]{sub {mu}}-disappearance analysis, and presents a new technique to estimate the hadronic energy of neutrino interactions. This estimator achieves a significant improvement in the energy resolution of the neutrino spectrum, and in the sensitivity of the neutrino oscillation fit. The systematic uncertainty on the hadronic energy scale was re-evaluated and found to be comparable to that of the energy estimator previously in use. The best-fit oscillation parameters of the [nu]{sub {mu}}-disappearance analysis, incorporating this new estimator were: [Delta]m2 = 2.32{sub -0.08}{sup +0.12} x 10−3 eV2, sin 2 2[theta]> 0.90 (90% C.L.). A similar analysis, using data from a period of running where the NuMI beam was operated in a configuration producing a predominantly {bar {nu}}{sub {mu}} beam, yielded somewhat different best-fit parameters [Delta]{bar m}2 = (3.36{sub -0.40}{sup +0.46}(stat.) ± 0.06(syst.)) x 10−3eV2, sin2 2{bar {theta}} = 0.86{sub -0.12}{sup _0.11}(stat.) ± 0.01(syst.). The tension between these results is intriguing, and additional antineutrino data is currently being taken in order to further investigate this apparent discrepancy.
Book Synopsis Preliminary Measurement of Neutrino Oscillation Parameters by NuMI/MINOS and Calibration Studies for Improving this Measurement by : Philip Andrew Symes
Download or read book Preliminary Measurement of Neutrino Oscillation Parameters by NuMI/MINOS and Calibration Studies for Improving this Measurement written by Philip Andrew Symes and published by . This book was released on 2006 with total page 456 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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 The MINOS Long-baseline Experiment at Fermilab by :
Download or read book The MINOS Long-baseline Experiment at Fermilab written by and published by . This book was released on 2001 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The MINOS (Main Injector Neutrino Oscillation Search) long-baseline experiment will search for neutrino oscillations by measuring an intense[nu][sub[mu]] beam at the end of a 730 km flight path. The 10,000 ton MINOS far detector will utilize magnetized steel plates interleaved with track chambers to reconstruct event topologies and to measure the energies of the muons, hadrons and electromagnetic showers produced by neutrino interactions. The experiment is designed to detect[nu][sub[mu]][r-arrow][nu][sub[tau]] and[nu][sub[mu]][r-arrow][nu][sub e] oscillations with[Delta]m[sup 2][ge] 0.001 eV[sup 2] and sin[sup 2] (2[theta])[ge] 0.01. Any oscillation signal observed can be verified and studied by several independent tests: a near/far rate comparison, the NC/CC event ratio, the CC and NC event energy spectra, and the identification of electrons and[tau] leptons. The neutrino beam can be operated in both wide-band and narrow-band configurations, allowing the detailed study oscillation phenomena. The experiment is scheduled to begin operation in 2001.
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 Precision Measurement of Neutrino Oscillation Parameters with KamLAND by : Thomas Michael ODonnell
Download or read book Precision Measurement of Neutrino Oscillation Parameters with KamLAND written by Thomas Michael ODonnell and published by . This book was released on 2011 with total page 378 pages. Available in PDF, EPUB and Kindle. Book excerpt: This dissertation describes a measurement of the neutrino oscillation parameters $Delta m2̂_{21}$, $theta_{12}$ and constraints on $theta_{13}$ based on a study of reactor antineutrinos at a baseline of $sim 180,$km with the KamLAND detector. The data presented here was collected between April 2002 and November 2009, and amounts to a total exposure of $2.64 \pm 0.07 times 10{̂32}$ proton-years. For this exposure we expect $2140 \pm 74 (syst)$ antineutrino candidates from reactors, assuming standard model neutrino behavior, and $350 pm 88 (syst)$ candidates from background. The number observed is 1614. The ratio of background-subtracted candidates observed to expected is $$frac{N_{Obs}-N_{Bkg}}{N_{Exp}} = 0.59 \pm 0.02 (stat)\pm 0.045 (syst)nonumber$$ which confirms reactor neutrino disappearance at greater than 5$sigma$ significance. Interpreting this deficit as being due to neutrino oscillation, the best-fit oscillation parameters from a three-flavor analysis are $Delta m{̂2}_{21} = 7.60 {̂+0.20}_{-0.19} times 10{̂-5} rm{eV2̂}$, mbox{$theta_{12} = 32.5 \pm 2.9$ degrees} and $sin{̂2}theta_{13} = 0.025 {̂+0.035}_{-0.035}$, the 95% confidence-level upper limit on $sin{̂2}theta_{13}$ is mbox{$sin{̂2}theta_{13}
Book Synopsis Long-baseline Neutrino Oscillation Experiments by :
Download or read book Long-baseline Neutrino Oscillation Experiments written by and published by . This book was released on 2005 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: There is no unambiguous definition for long baseline neutrino oscillation experiments. The term is generally used for accelerator neutrino oscillation experiments which are sensitive to [Delta]m[sup 2]
Book Synopsis FINAL NEUTRINO OSCILLATION RESULTS FROM LSND. by :
Download or read book FINAL NEUTRINO OSCILLATION RESULTS FROM LSND. written by and published by . This book was released on 2006 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The LSND experiment provides evidence for neutrino oscillations from both the primary [bar [nu]][sub [mu]] [r-arrow] [bar [nu]][sub e] oscillation search and the secondary [nu][sub [mu]] [r-arrow] [nu][sub e] oscillation search. At present, this remains the only evidence for appearance neutrino oscillations and implies that at least one neutrino has a mass greater than 0.4 eV/c[sup 2] and that neutrinos comprise more than 1% of the mass of the universe. The MiniBooNE experiment at Fermilab, which is presently under construction, will provide a definitive test of the LSND results, and if the neutrino oscillation results are confirmed, will make a precision measurement of the oscillation parameters.
Book Synopsis Studying Neutrino Oscillations Using Quasi-elastic Events in MINOS. by :
Download or read book Studying Neutrino Oscillations Using Quasi-elastic Events in MINOS. written by and published by . This book was released on 2008 with total page 158 pages. Available in PDF, EPUB and Kindle. Book excerpt: MINOS (Main Injector Neutrino Oscillation Search), is a long baseline neutrino experiment designed to search for neutrino oscillations using two detectors at Fermi National Accelerator Laboratory, IL (Near Detector) and Soudan, MN (Far Detector). It will study v[mu] → v[tau] oscillations and make a measurement on the oscillation parameters, [Delta]m$2\atop{23}$ and sin2 2[theta]23, via a v[mu] beam made at Fermilab. Charge current neutrino interactions in the MINOS detectors are of three types: quasi-elastic scattering (QEL), resonance scattering (RES) and deep inelastic scattering (DIS). Of these, quasi-elastic scattering leaves the cleanest signal with just one [mu] and one proton in the final state, thus rendering the reconstruction of the neutrino energy more accurate. This thesis will outline a method to separate QEL events from the others in the two detectors and perform a calculation of [Delta]m$2\atop{23}$ and sin2 2[theta]23 using those events. The period under consideration was May 2005 to February 2006. The number of observed quasi-elastic events with energies below 10 GeV was 29, where the expected number was 60 ± 3. A fit to the energy distribution of these events gives [Delta]m$2\atop{23}$ = 2.91$+0.49\atop{-0.53}$(stat)$+0.08\atop{-0.09}$(sys) x 10-3 eV2 and sin2 2[theta]23 = 0.990-0.180(stat)-0.030(sys).
Book Synopsis A Measurement of Neutrino Oscillations with Muon Neutrinos in the MINOS Experiment by :
Download or read book A Measurement of Neutrino Oscillations with Muon Neutrinos in the MINOS Experiment written by and published by . This book was released on 2011 with total page 258 pages. Available in PDF, EPUB and Kindle. Book excerpt: Experimental evidence has established that neutrino flavor states evolve over time. A neutrino of a particular flavor that travels some distance can be detected in a different neutrino flavor state. The Main Injector Neutrino Oscillation Search (MINOS) is a long-baseline experiment that is designed to study this phenomenon, called neutrino oscillations. MINOS is based at Fermilab near Chicago, IL, and consists of two detectors: the Near Detector located at Fermilab, and the Far Detector, which is located in an old iron mine in Soudan, MN. Both detectors are exposed to a beam of muon neutrinos from the NuMI beamline, and MINOS measures the fraction of muon neutrinos that disappear after traveling the 734 km between the two detectors. One can measure the atmospheric neutrino mass splitting and mixing angle by observing the energy-dependence of this muon neutrino disappearance. MINOS has made several prior measurements of these parameters. Here I describe recently-developed techniques used to enhance our sensitivity to the oscillation parameters, and I present the results obtained when they are applied to a dataset that is twice as large as has been previously analyzed. We measure the mass splitting ?m232 = (2.32-0.08+0.12) x 10-3 eV2/c4 and the mixing angle sin2(2?32) > 0.90 at 90% C.L. These results comprise the world's best measurement of the atmospheric neutrino mass splitting. Alternative disappearance models are also tested. The neutrino decay hypothesis is disfavored at 7.2? and the neutrino quantum decoherence hypothesis is disfavored at 9.0?.
Book Synopsis A New Long Baseline Neutrino Oscillation Experiment at Brookhaven by : Richard Lloyd Helmer
Download or read book A New Long Baseline Neutrino Oscillation Experiment at Brookhaven written by Richard Lloyd Helmer and published by . This book was released on 1994 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt:
