Showing papers on "Neutrino detector published in 1978"

Proposed solar-neutrino experiment using /sup 7/1Ga

Abstract: A solar-neutrino experiment that uses /sup 7/1Ga as a detector can distinguish between broad classes of explanations for the discrepancy between prediction and observation in the /sup 3/7Cl experiment. A radiochemical experiment with the required amount of /sup 7/1Ga is feasible.

High energy neutrino astronomy

Abstract: The possibility of doing point source neutrino astronomy is discussed. Probable sources include galactic nuclei, Seyferts, quasars, radio galaxies, pulsars and supernovae.

Further Observation of Trimuon Production by Neutrinos and Antineutrinos

Abstract: We have observed six additional trimuons in a neutrino beam and one trimuon in an antineutrino beam using the new large-angle neutrino detector (NEULAND) at Fermilab One of the neutrino events has three very high-energy muons The properties of the new trimuon events together with the earlier events suggest at least two qualitatively different origins for this phenomenon

Experimental Studies of the Acoustic Signature of Proton Beams Traversing Fluid Media

Abstract: The work reported here establishes that a detectable sonic signal is produced by protons while traversing through or stopping in a fluid medium. Experiments exploring the global characteristics of both the acoustic generation mechanism and the radiation pattern have been performed at three different accelerators. The results are consistent with a simple thermal model for the transformation of the energy of moving charged particles into acoustic energy. This novel phenomenon could be exploited in several forseeable applications: (1) as a charged particle monitor in accelerator beams, (2) as a heavy ion detector sensitive to nuclear charge (signal infinity Z/sup 2/), e.g. in measuring the cosmic ray isotope abundances, (3) as an inexpensive shower detector in massive (approx. 10/sup 4/ Ton) neutrino detectors at the next generation of high energy accelerators, e.g. the Fermilab energy doubler and (4) as the shower calorimeter (and perhaps the muon detector) in massive (greater than or equal to 10/sup 9/ Ton) deep underwater detectors of cosmic neutrino and muon interactions.

Neutrino bursts and gravitational waves experiments

Abstract: Several experiments have been performed in many countries to observe gravitational waves or neutrino bursts. Since their simultaneous emission may occur in stellar collapses, we evaluate the effect of neutrino bursts on gravitational wave antennas and suggest the usefulness of a time correlation among the different detectors.

High-Energy Neutrino Experiments

Abstract: Neutrino physics has entered a new era with the advent of intense, high-energy neutrino beams, and with the advent of large-scale neutrino detectors. Now neutrino experimentation gets used to large numbers of events, and systematic errors start to dominate statistical ones. Precise experimental results are possible, and they are gradually replacing the less accurate and more qualitative earlier statements. However, faced with the impressive results which have emerged from past neutrino experiments, we can only hope that the forthcoming results, accessible only in high-precision experiments, will be of a similarly incisive character.

Limits of the Probability that Trimuons Are Produced by a New Short-Lived Source of Neutrinos

Abstract: Confidence levels against the hypothesis that the trimuon events observed with the large-angle neutrino detector (NEULAND) at Fermilab were induced by new kinds of neutrinos associated with short-lived particles were estimated to be 99.9%, 99%, and 85%, respectively, for the trimuon events in the three categories in which the momentum of the lowest energy muon is greater than 5, 10, and 20 GeV/c.

Neutrino experiments at high energies

Abstract: A review is given of experimental work in the field of neutrino physics carried out between 1972 and the first half of 1977 using high energy accelerators. The methodology of neutrino experiments is examined including neutrino beams, modern electronic detectors, and bubble chambers. Data are presented on the measurement of total cross sections with charged and neutral currents. Results of studies of elastic and deep inelastic scattering and their theoretical interpretation are described. The principal mechanisms of production of new particles and the results of an experimental search for them in neutrino interactions are discussed.

The significance of gamma ray observations for neutrino astronomy

Abstract: X-ray, gamma ray and neutrino observations are examined to show, in a general way, the relationship between them. Existing gamma ray measurements are summarized and some examples are used to set ranges or limits for neutrino fluxes for specific types of models. The purpose of this is to show the possibilities for separation between models and to aid in the consideration of neutrino detector designs. Attention is given to exceptional and normal galaxies, as well as to compact objects, and diffuse isotropic radiation. It is noted that the close relationship between gamma rays and neutrino production will be useful for future neutrino astronomy.

Monte Carlo simulation of inelastic neutrino scattering in DUMAND

Abstract: Detailed Monte Carlo calculations simulating the detection in the DUMAND 1-km/sup 3/ optical detector of inelastic neutrino scattering by nucleons at 2 TeV and above show that the measurement of the y distribution is subject to systematic errors due to experimental errors and intrinsic fluctuations which produce errors in the energy determinations of hadronic cascade and muon; uncertainty in the exact amount of antineutrino fraction in the cosmic-ray neutrino flux. The nature of these errors is explored, and methods for removing them from the data developed. The remaining uncertainties are those in the evaluation of the errors in energy determination, and in the antineutrino contamination. It appears that these errors, not statistical ones, will eventually govern the accuracy of the y distributions obtained. Nonetheless, the effect of the boson propagator on the y distribution is so marked that no plausible scenario can be found in which the residual errors cast doubt on whether or not the propagator effect is present.