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Future experiments with neutrino superbeams, beta-beams, and neutrino factories

Description: This report describes the goals of the next generations of accelerator-based neutrino experiments, and the various strategies that are being considered to achieve those goals. Because these next steps in the field are significantly different from the current or previous steps, novel techniques must be considered for both the detectors and the neutrino beams themselves. We consider not only conventional neutrino beams created by decays of pions, but also those which could be made by decays of beams of relativistic isotopes (so-called ''beta-beams'') and also by decays of beams of muons (neutrino factories).
Date: October 27, 2003
Creator: Harris, Deborah A
Partner: UNT Libraries Government Documents Department

NuTeV SSQT performance

Description: The NuTeV experiment (E815) took data during the 1996-1997 Fermilab fixed target run. The experiment used the sign-selected-quadrupole- train (SSQT) in its neutrino beamline to choose either a neutrino or an anti- neutrino beam. This note summarizes the performance of the SSQT, as measured by the beamline monitoring devices, the observed {nu}{sub {mu}} and {anti {nu}}{sub {mu}} fluxes, and the upper limit on the wrong sign neutrino contamination.
Date: February 1, 1998
Creator: Yu, J. & NuTeV
Partner: UNT Libraries Government Documents Department

MUON COLLIDERS: THE ULTIMATE NEUTRINO BEAMLINES.

Description: It is shown that muon decays in straight sections of muon collider rings will naturally produce highly collimated neutrino beams that can be several orders of magnitude stronger than the beams at existing accelerators. We discuss possible experimental setups and give a very brief overview of the physics potential from such beamlines. Formulae are given for the neutrino event rates at both short and long baseline neutrino experiments in these beams.
Date: March 29, 1999
Creator: KING,B. J.
Partner: UNT Libraries Government Documents Department

Transition Crossing for the BNL Super Neutrino Beam Facility.

Description: The super neutrino beam facility proposed at the Brookhaven National Laboratory requires proton beams to cross the transition energy in the AGS to reach 1 MW beam power at top energy. High intensity beams are accelerated at a fast repetition rate. Upon transition crossing, such high intensity bunches of large momentum spreads suffer from strong nonlinear chromatic effects and self-field effects. Using theoretical and experimental methods, we determine the impact of these effects and the effectiveness of transition-jump compensation schemes, and determine the optimum crossing scenario for the super neutrino beam facility.
Date: July 5, 2004
Creator: Wei, J. & Tsoupas, N.
Partner: UNT Libraries Government Documents Department

Neutrino beam line optics study

Description: A study was done to understand the beam line optics from the beginning of Switchyard all the way to the end of Neutrino beam line. All available SWIC data were taken to get the beam centroid and width to be used in the analysis. The beam emittance and lattice function at the beginning of beam line can also be inferred from the study. The result indicated that the normalized 95% emittance to be around 15 {pi}-mm-mr for the vertical plane and about 28 {pi}-mm-mr for the horizontal plane.
Date: September 1, 1996
Creator: Yang, Ming-Jen
Partner: UNT Libraries Government Documents Department

The physics potential of neutrino beams from muon storage rings

Description: High-intensity neutrino beams could be produced using a very intense muon source, and allowing the muons to decay in a storage ring containing a long straight section. Taking the parameters of muon source designs that are currently under study for future high luminosity muon colliders, the characteristics of the neutrino beams that could be produced are discussed and some examples of their physics potential given. It is shown that the neutrino and antineutrino beam intensities may be sufficient to produce hundreds of neutrino interactions per year in a detector on the far side of the Earth.
Date: December 1, 1997
Creator: Greer, S.
Partner: UNT Libraries Government Documents Department

High intensity muon storage rings for neutrino production: Lattice design

Description: Five energies, 250, 100, 50, 20, and 10 GeV, have been explored in the design of a muon storage ring for neutrino-beam production. The ring design incorporates exceptionally long straight sections with large beta functions in order to produce an intense, parallel neutrino beam via muon decay. To emphasize compactness and reduce the number of muon decays in the arcs, high-field superconducting dipoles are used in the arc design.
Date: May 1, 1998
Creator: Johnstone, C>
Partner: UNT Libraries Government Documents Department

Physics with a millimole of muons

Description: The eventual prospect of muon colliders reaching several TeV encourages us to consider the experimental opportunities presented by very copious stores of muons, approaching 10{sup 21} per year. I summarize and comment upon some highlights of the Fermilab Workshop on Physics at the First Muon Collider and at the Front End of a Muon Collider. Topics include various varieties of {mu}{mu} colliders, {mu}p colliders, and applications of the intense neutrino beams that can be generated in muon storage rings.
Date: March 1, 1998
Creator: Quigg, C.
Partner: UNT Libraries Government Documents Department

How well do we need to know the beam properties at a neutrino factory?

Description: In principle, a neutrino factory can produce a beam with a well known {nu}{sub e} and {nu}{sub {mu}} flux. In practice, the uncertainties on the muon beam properties will introduce uncertainties into the calculated neutrino fluxes. The authors explore the relationship between the beam systematics and the systematic uncertainties on predicted event rates at a far site. The desired precision with which they must know the beam momentum, direction, divergence, momentum spread, and polarization are discussed.
Date: February 29, 2000
Creator: Geer, S. & Crisan, C.
Partner: UNT Libraries Government Documents Department

Muon Collider/Neutrino Factory: Status and prospects

Description: During the 1990s an international collaboration has been studying the possibility of constructing and operating a high-energy high-luminosity {mu}{sup +}{mu}{sup {minus}} collider. Such a machine could be the approach of choice to extend the discovery reach beyond that of the LHC. More recently, a growing collaboration is exploring the potential of a stored-muon-beam neutrino factory to elucidate neutrino oscillations. A neutrino factory could be an attractive stepping-stone to a muon collider. Its construction, possibly feasible within the coming decade, could have substantial impact on neutrino physics.
Date: January 26, 2000
Creator: Kaplan, D.M.
Partner: UNT Libraries Government Documents Department

A SCENARIO FOR A BROOKHAVEN NEUTRINO SUPER BEAM EXPERIMENT.

Description: This paper examines the feasibility of a long baseline neutrino beam facility based on a proposed upgrade to the AGS accelerator at Brookhaven National Laboratory. It assumes that the AGS is upgraded initially to a 1 MW proton driver and eventually to a 4 MW proton machine. This upgrade would provide a strong incentive for a long baseline low energy neutrino beam to study neutrino oscillations. In this paper we look at a possible long baseline experiment with a detector at Cornell, which is 350 km away from BNL.
Date: July 1, 2001
Creator: DIWAN,M.V.; KAHN,S.A.; PALMER,R.B.; STUMER,I.; PARSA,Z. & MCDONALD,K.T.
Partner: UNT Libraries Government Documents Department

Operational experience with beam loss, shielding and residual radiation in the Fermilab proton source

Description: A report on beam loss, radiation shielding, and residual radiation experiences and status in the Fermilab Linac and Booster is presented. Historically, the Linac/Booster system has served only as an injector for the relatively low repetition rate Main Ring synchrotron. With the construction of an 8 GeV target station for the 5 Hz MiniBooNE neutrino beam and rapid multi-batch injection into the Main Injector for the NUMI experiment, the demand for Booster protons will increase dramatically over the next few years. Booster beam loss reduction and control are key to the entire future Fermilab high energy physics program.
Date: August 28, 2000
Creator: Webber, Robert C.
Partner: UNT Libraries Government Documents Department

NEUTRINO FACTORY BASED ON MUON-STORAGE-RINGS TO MUON COLLIDERS: PHYSICS AND FACILITIES.

Description: Intense muon sources for the purpose of providing intense high energy neutrino beams ({nu} factory) represents very interesting possibilities. If successful, such efforts would significantly advance the state of muon technology and provides intermediate steps in technologies required for a future high energy muon collider complex. High intensity muon: production, capture, cooling, acceleration and multi-turn muon storage rings are some of the key technology issues that needs more studies and developments, and will briefly be discussed here. A muon collider requires basically the same number of muons as for the muon storage ring neutrino factory, but would require more cooling, and simultaneous capture of both {+-} {mu}. We present some physics possibilities, muon storage ring based neutrino facility concept, site specific examples including collaboration feasibility studies, and upgrades to a full collider.
Date: June 18, 2001
Creator: PARSA,Z.
Partner: UNT Libraries Government Documents Department

MUON SOURCES, NEUTRINO FACTORY TO MU+- COLLIDERS.

Description: Employing intense muon sources to carry out forefront low energy research, such as the search for muon - number non-conservation, or for the purpose of providing intense high energy neutrino beams ({nu}factory) represents very interesting possibilities. If successful, such efforts would significantly advance the state of muon technology and provides intermediate steps in technologies required for a future high energy muon collider complex. High intensity muon: production, capture, cooling, acceleration and multiturn muon storage rings are some of the key technology issues that needs more studies and development. A muon collider require basically same number of muons as for the muon storage ring Neutrino Factory, but would require more cooling, and simultaneous capture of both {+-}{mu}. We present an overview of Muon Sources - Neutrino Factories, example of a muon storage ring at BNL, and possible upgrades to a full Muon Collider.
Date: June 10, 2000
Creator: PARSA,Z.
Partner: UNT Libraries Government Documents Department

MUON SOURCES, NEUTRINO FACTORY TO MU+- COLLIDERS.

Description: Employing intense muon sources to carry out forefront low energy research, such as the search for muon - number non-conservation, or for the purpose of providing intense high energy neutrino beams ({nu}factory) represents very interesting possibilities. If successful, such efforts would significantly advance the state of muon technology and provides intermediate steps in technologies required for a future high energy muon collider complex. High intensity muon: production, capture, cooling, acceleration and multiturn muon storage rings are some of the key technology issues that needs more studies and development. A muon collider require basically same number of muons as for the muon storage ring Neutrino Factory, but would require more cooling, and simultaneous capture of both {+-}{mu}. We present an overview of Muon Sources - Neutrino Factories, example of a muon storage ring at BNL, and possible upgrades to a full Muon Collider.
Date: June 10, 2000
Creator: Parsa, Z.
Partner: UNT Libraries Government Documents Department

Beam tests of ionization chambers for the NuMI neutrino beam

Description: We have conducted tests at the Fermilab Booster of ionization chambers to be used as monitors of the NuMI neutrino beamline. The chambers were exposed to proton fluxes of up to 10{sup 12} particles/cm{sup 2}/1.56 {micro}s. We studied space charge effects which can reduce signal collection from the chambers at large charged particle beam intensities.
Date: September 25, 2003
Creator: al., Robert M. Zwaska et
Partner: UNT Libraries Government Documents Department

Status of the MINOS Experiment

Description: We report on the status of the MINOS long baseline neutrino experiment presently under construction at the Fermi National Accelerator Laboratory and the Soudan mine. There is growing evidence that the solar neutrino and atmospheric neutrino anomalies [1] are the result of neutrino oscillations. The MINOS experiment is a long baseline neutrino oscillation experiment designed to study the region of parameter space indicated by the SuperKamiokande atmospheric neutrino results [2]. The experiment consists of two detectors, one with a mass of 980 tons located at Fermilab (the near detector) and the other of mass 5400 tons located 731 km away in the Soudan mine in northern Minnesota (the far detector). The third component is the neutrino beam which is currently under construction at Fermilab.
Date: March 17, 2003
Creator: Buckley-Geer, Elizabeth
Partner: UNT Libraries Government Documents Department

NEUTRINO SUPER BEAM FACILITY FOR A LONG BASELINE EXPERIMENT FROM BNL TO HOMESTAKE.

Description: An upgrade to the BNL Alternate Gradient Synchrotron (AGS) could produce a very intense proton source at a relatively low cost. Such a proton beam could be used to generate a conventional neutrino beam with a significant flux at large distances from the laboratory. This provides the possibility of a very long baseline neutrino experiment at the Homestake mine. The construction of this facility would allow a program of experiments to study many of the aspects of neutrino oscillations including CP violations. This study examines a 1 MW proton source at BNL and a large 1 megaton detector positioned at the Homestake Mine as the ultimate goal of a staged program to study neutrino oscillations.
Date: October 21, 2002
Creator: KAHN,S.
Partner: UNT Libraries Government Documents Department

CONCEPTUAL DESIGN STUDY OF HORN POWER SUPPLY.

Description: A 250 kA pulsed power supply is required for the focusing horn of the proposed Brookhaven AGS Super Neutrino Beam Facility for long baseline neutrino oscillation experiment. It is expected to pulse at 2.5 Hz repetition rate. A preliminary study is being conducted to explore the key issues associated with the power supply system design. Advanced technologies used in similar systems as well as new ideas are being examined, simulated and evaluated. This power supply will be a very high stored energy, high average power, and high peak power system.
Date: June 16, 2003
Creator: ZHANG,W.; SANDBERG,J. & WENG,W.T.
Partner: UNT Libraries Government Documents Department

AGS SUPER NEUTRINO BEAM FACILITY ACCELERATOR AND TARGET SYSTEM DESIGN (NEUTRINO WORKING GROUP REPORT-II).

Description: This document describes the design of the accelerator and target systems for the AGS Super Neutrino Beam Facility. Under the direction of the Associate Laboratory Director Tom Kirk, BNL has established a Neutrino Working Group to explore the scientific case and facility requirements for a very long baseline neutrino experiment. Results of a study of the physics merit and detector performance was published in BNL-69395 in October 2002, where it was shown that a wide-band neutrino beam generated by a 1 MW proton beam from the AGS, coupled with a half megaton water Cerenkov detector located deep underground in the former Homestake mine in South Dakota would be able to measure the complete set of neutrino oscillation parameters: (1) precise determination of the oscillation parameters {Delta}m{sub 32}{sup 2} and sin{sup 2} 2{theta}{sub 32}; (2) detection of the oscillation of {nu}{sub {mu}}-{nu}{sub e} and measurement of sin{sup 2} 2{theta}{sub 13}; (3) measurement of {Delta}m{sub 21}{sup 2} sin 2{theta}{sub 12} in a {nu}{sub {mu}} {yields} {nu}{sub e} appearance mode, independent of the value of {theta}{sub 13}; (4) verification of matter enhancement and the sign of {Delta}m{sub 32}{sup 2}; and (5) determination of the CP-violation parameter {delta}{sub CP} in the neutrino sector. This report details the performance requirements and conceptual design of the accelerator and the target systems for the production of a neutrino beam by a 1.0 MW proton beam from the AGS. The major components of this facility include a new 1.2 GeV superconducting linac, ramping the AGS at 2.5 Hz, and the new target station for 1.0 MW beam. It also calls for moderate increase, about 30%, of the AGS intensity per pulse. Special care is taken to account for all sources of proton beam loss plus shielding and collimation of stray beam halo particles to ensure equipment reliability and ...
Date: April 21, 2003
Creator: DIWAN,M.; MARCIANO,W.; WENG,W. & RAPARIA,D.
Partner: UNT Libraries Government Documents Department

Search for Muon Neutrino Disappearance in a Short-Baseline Accelerator Neutrino Beam

Description: We report a search for muon neutrino disappearance in the {Delta}m{sup 2} region of 0.5--40 eV{sup 2} using data from both Sci-BooNE and MiniBooNE experiments. SciBooNE data provides a constraint on the neutrino flux, so that the sensitivity to {nu}{sub {mu}} disappearance with both detectors is better than with just MiniBooNE alone. The preliminary sensitivity for a joint {nu}{sub {mu}} disappearance search is presented.
Date: April 25, 2010
Creator: Nakajima, Y. & U., /Kyoto
Partner: UNT Libraries Government Documents Department

Accelerator neutrino program at Fermilab

Description: The accelerator neutrino programme in the USA consists primarily of the Fermilab neutrino programme. Currently, Fermilab operates two neutrino beamlines, the Booster neutrino beamline and the NuMI neutrino beamline and is the planning stages for a third neutrino beam to send neutrinos to DUSEL. The experiments in the Booster neutrino beamline are miniBooNE, SciBooNE and in the future microBooNE, whereas in the NuMI beamline we have MINOS, ArgoNut, MINERVA and coming soon NOvA. The major experiment in the beamline to DUSEL will be LBNE.
Date: May 1, 2010
Creator: Parke, Stephen J.
Partner: UNT Libraries Government Documents Department