Deformation Effect and Five-fold Correlation Time Reversal Test in Neutron Resonances Using Aligned [sup 165]Ho
Deformation Effect and Five-fold Correlation Time Reversal Test in Neutron Resonances Using Aligned [sup 165]Ho

Author:

Publisher:

Published: 1993

Total Pages: 10

ISBN-13:

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In 1988, Bunakov proposed a test of parity (P) even time reversal (T) violation in the neighborhood of two interfering p-wave resonances of the same spin. A similar enhancement exists if a d-wave and s-wave resonance interfere. Until now, however, no suitable resonances have been located in nuclei which can be aligned, and the only tests of time reversal violation in neutron transmission have been carried out with MeV-energy neutrons. The authors estimate the deformation effect cross sections for neutron resonances in aligned [sup 165]Ho, and estimate the sensitivity of a five-fold correlation time reversal test carried out on a resonance that exhibits a deformation effect.

Government Reports Annual Index
Government Reports Annual Index

Author:

Publisher:

Published: 1995

Total Pages: 1686

ISBN-13:

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Sections 1-2. Keyword Index.--Section 3. Personal author index.--Section 4. Corporate author index.-- Section 5. Contract/grant number index, NTIS order/report number index 1-E.--Section 6. NTIS order/report number index F-Z.

Time Reversal Invariance And Parity Violation In Neutron Reactions - Proceedings Of The 2nd International Workshop
Time Reversal Invariance And Parity Violation In Neutron Reactions - Proceedings Of The 2nd International Workshop

Author: Christopher R Gould

Publisher: World Scientific

Published: 1994-01-28

Total Pages: 262

ISBN-13: 9814552291

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The International Workshop on Time Reversal Invariance and Parity Violation in Neutron Reactions focused on the study of parity violation (PV) and time reversal invariance (TRI) in neutron physics. Emphasis was placed on measurements with polarized neutron beams and polarized targets as well as on the implication of recent theoretical developments for the future progress of this rapidly developing and increasingly important field of research.

Test of Time Reversal Symmetry with Resonance Neutron Scattering
Test of Time Reversal Symmetry with Resonance Neutron Scattering

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Publisher:

Published: 1986

Total Pages:

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The possibility of searching for time-reversal symmetry violation in the scattering of epithermal neutrons from nuclei is discussed. Sources of both statistical and systematic errors are reviewed. A qualitative assessment of the size of the time reversal is made and a schematic design of an experiment to test time reversal symmetry is presented. (DWL) 10 refs., 1 fig.

Time Reversal Invariance - a Test in Free Neutron Decay
Time Reversal Invariance - a Test in Free Neutron Decay

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Publisher:

Published: 1999

Total Pages: 175

ISBN-13:

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Time reversal invariance violation plays only a small role in the Standard Model, and the existence of a T-violating effect above the predicted level would be an indication of new physics. A sensitive probe of this symmetry in the weak interaction is the measurement of the T-violating ''D''-correlation in the decay of free neutrons. The triple-correlation D[sigma]{sub n}·p{sub e} x p{sub v} involves three kinematic variables, the neutron spin, electron momentu, and neutrino (or proton) momentum, and changes sign under time reversal. This experiment detects the decay products of a polarized cold neutron beam with an octagonal array of scintillation and solid-state detectors. Data from first run at NIST's Cold Neutron Research Facility give a D-coefficient of -0.1 ± 1.3(stat.) ± 0.7(syst) x 10−3. This measurement has the greatest bearing on extensions to the Standard model that incorporate leptoquarks, although exotic fermion and lift-right symmetric models also allow a D as large as the present limit.

The Nucleus
The Nucleus

Author: F.D. Smit

Publisher: Springer Science & Business Media

Published: 1999

Total Pages: 540

ISBN-13: 9780306463020

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Proceedings of the International Conference on The Nucleus: New Physics for the New Millennium, held January 18-22, 1999, at the National Accelerator Centre, Faure, South Africa

Radiological Safety Aspects of the Operation of Electron Linear Accelerators
Radiological Safety Aspects of the Operation of Electron Linear Accelerators

Author: William P. Swanson

Publisher: Bernan Press(PA)

Published: 1979

Total Pages: 350

ISBN-13:

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Electron linear accelerators are being used throughout the world in increasing numbers in a variety of important applications. Foremost among these is their role in the treatment of cancer. Commercial uses include non-destructive testing by radiography, food preservation, product sterilization and radiation processing of materials such as plastics and adhesives. Scientific applications include investigations in radiation biology, radiation chemistry, nuclear and elementary particle physics and radiation research. This manual provides authoritative guidance in radiation protection for this important category of radiation sources.

Medicinal Chemistry and Pharmacological Potential of Fullerenes and Carbon Nanotubes
Medicinal Chemistry and Pharmacological Potential of Fullerenes and Carbon Nanotubes

Author: Franco Cataldo

Publisher: Springer Science & Business Media

Published: 2008-09-08

Total Pages: 411

ISBN-13: 140206845X

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Fullerenes and nanotubes are two classes of carbon structures or allotropes, which were discovered about 17 years ago. Since that time, many chemical derivatives have been synthesized using fullerenes and nanotubes as building blocks. Particularly promising was the theory that the chemical properties of fullerenes, and certain derivatives, made them likely candidates for anticancer drugs, inhibitors of viruses such as HIV, or even as anti-bacterials. Their cyctotoxicity can also be controlled by specific circumstances. In addition, the funtionalization of nanotubes has not only produced relatively simple derivatives, but also complex hybrids with biological macromolecules, which show unique supramolecular architecture and which are promising in many medical applications. The application of fullerenes and nanotubes in medicine is at the frontier of our knowledge, thus the work in this field represents the basis for future novel developments.