Search Results - "Dees, E B"
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Improved Neutron Lifetime Measurement with UCN τ
Published in Physical review letters (15-10-2021)“…We report an improved measurement of the free neutron lifetime τn using the UCN τ apparatus at the Los Alamos Neutron Science Center. We count a total of…”
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Measurement of the neutron lifetime using a magneto-gravitational trap and in situ detection
Published in Science (American Association for the Advancement of Science) (11-05-2018)“…The precise value of the mean neutron lifetime, τ , plays an important role in nuclear and particle physics and cosmology. It is used to predict the ratio of…”
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Neutron-antineutron oscillations: Theoretical status and experimental prospects
Published in Physics reports (11-02-2016)“…The observation of neutrons turning into antineutrons would constitute a discovery of fundamental importance for particle physics and cosmology. Observing the…”
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Improved limits on Fierz Interference using asymmetry measurements from the UCNA experiment
Published 13-11-2019“…Phys. Rev. C 101, 035503 (2020) The Ultracold Neutron Asymmetry (UCNA) experiment was designed to measure the $\beta$-decay asymmetry parameter, $A_0$, for…”
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Monte Carlo Simulations of Trapped Ultracold Neutrons in the UCN{\tau} Experiment
Published 16-10-2018“…Phys. Rev. C 100, 015501 (2019) In the UCN{\tau} experiment, ultracold neutrons (UCN) are confined by magnetic fields and the Earth's gravitational field…”
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A multilayer surface detector for ultracold neutrons
Published in Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment (21-10-2015)“…A multilayer surface detector for ultracold neutrons (UCNs) is described. The top 10B layer is exposed to vacuum and directly captures UCNs. The ZnS:Ag layer…”
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Measurement of the neutron lifetime using an asymmetric magneto- gravitational trap and in situ detection
Published 07-02-2018“…The precise value of the mean neutron lifetime, $\tau_n$, plays an important role in nuclear and particle physics and cosmology. It is a key input for…”
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8
Measurement of the neutron lifetime using a magneto-gravitational trap and in situ detection
Published in Science (American Association for the Advancement of Science) (11-05-2018)“…Here, the precise value of the mean neutron lifetime, τn, plays an important role in nuclear and particle physics and cosmology. It is used to predict the…”
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Journal Article -
9
Detection system for neutron β decay correlations in the UCNB and Nab experiments
Published in Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment (21-03-2017)“…We describe a detection system designed for precise measurements of angular correlations in neutron β decay. The system is based on thick, large area, highly…”
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Position-sensitive detection of ultracold neutrons with an imaging camera and its implications to spectroscopy
Published 12-05-2016“…Nuclear Instruments and Methods in Physics Research Section A, vol. 830, 36-43 (2016) Position-sensitive detection of ultracold neutrons (UCNs) is demonstrated…”
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Neutron-Antineutron Oscillations: Theoretical Status and Experimental Prospects
Published 18-10-2015“…Physics Reports, Volume 612, 11 February 2016, Pages 1-45 This paper summarizes the relevant theoretical developments, outlines some ideas to improve…”
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A multilayer surface detector for ultracold neutrons
Published 24-04-2015“…Nuclear Instruments and Methods in Physics Research Section A, Volume 798, 30-35 (2015) A multilayer surface detector for ultracold neutrons (UCNs) is…”
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Position-sensitive detection of ultracold neutrons with an imaging camera and its implications to spectroscopy
Published in Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment (11-09-2016)“…Position-sensitive detection of ultracold neutrons (UCNs) is demonstrated using an imaging charge-coupled device (CCD) camera. A spatial resolution less than…”
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15
Status of the UCN τ experiment
Published in EPJ Web of conferences (2019)“…The neutron is the simplest nuclear system that can be used to probe the structure of the weak interaction and search for physics beyond the standard model…”
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Journal Article Conference Proceeding -
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Search for neutron dark decay: n → χ + e + e
Published in EPJ Web of Conferences (2019)“…In January, 2018, Fornal and Grinstein proposed that a previously unobserved neutron decay branch to a dark matter particle (χ) could account for the…”
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Journal Article Conference Proceeding -
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Final results for the neutron β-asymmetry parameter A0 from the UCNA experiment
Published in EPJ Web of conferences (01-01-2019)“…The UCNA experiment was designed to measure the neutron β-asymmetry parameter A0 using polarized ultracold neutrons (UCN). UCN produced via downscattering in…”
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Conference Proceeding Journal Article -
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Storage of ultracold neutrons in the magneto-gravitational trap of the UCN τ experiment
Published in Physical review. C, Nuclear physics (23-05-2014)Get full text
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Upscattering of ultracold neutrons from gases
Published in Physical review. C, Nuclear physics (14-12-2015)Get full text
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Improved neutron lifetime measurement with UCN$\tau
Published 18-06-2021“…We report an improved measurement of the free neutron lifetime $\tau_{n}$ using the UCN$\tau$ apparatus at the Los Alamos Neutron Science Center. We counted a…”
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Journal Article