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Your search keyword '"Yu. .. Sobolev"' showing total 2 results
Start Over Author "Yu. .. Sobolev" Journal physics letters b
2 results on '"Yu. .. Sobolev"'

1. Circular polarization of γ-quanta in np→dγ reactions with polarized neutrons

Author

A. N. Pirozhkov, V.V. Ivanov, A. Bazhenov, E. A. Kolomensky, Vladimir M Lobashev, Yu. Sobolev, L. A. Grigor'eva, and V.A. Nazarenko

Subjects
Physics, Nuclear and High Energy Physics, Photomultiplier, Optics, Transmission (telecommunications), business.industry, Detector, Neutron, Atomic physics, Spin isomers of hydrogen, business, Circular polarization
Abstract

The circular polarization of the 2.23 MeV γ -quanta in the reaction np→d γ with polarized cold neutrons has been measured to be P γ =(−1.5±0.3)×10 −3 . A high-purity solid parahydrogen target was used. The circular polarization was measured with two magnetic transmission polarimeters, NaI(Tl) crystals with photomultipliers were used as detectors. The result is examined from the point of view of recent theoretical calculations.

Published
1992

2. First observation of trapped high-field seeking ultracold neutron spin states

Author

Philipp Schmidt-Wellenburg, L. Goeltl, Guillaume Pignol, P. Geltenbort, T. Zechlau, B. Franke, Klaus Kirch, Yu. Sobolev, G. Kessler, Peter Fierlinger, M. Daum, J. Karch, E. Pierre, Erwin Gutsmiedl, H.-C. Koch, T. Lauer, A. Kraft, Geza Zsigmond, Bernhard Lauss, Davide Reggiani, Institut Laue-Langevin (ILL), ILL, Laboratoire de physique corpusculaire de Caen (LPCC), Université de Caen Normandie (UNICAEN), Normandie Université (NU)-Normandie Université (NU)-École Nationale Supérieure d'Ingénieurs de Caen (ENSICAEN), Normandie Université (NU)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), and Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS)

Subjects
Physics, Neutron lifetime, Nuclear and High Energy Physics, Spin states, Condensed matter physics, Ultracold neutron storage, 010308 nuclear & particles physics, Astrophysics::High Energy Astrophysical Phenomena, Nuclear Theory, Magnetic confinement fusion, Ultracold neutrons, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], 01 natural sciences, 3. Good health, Magnetic field, Shutter, 0103 physical sciences, Neutron, 010306 general physics, Axial symmetry, Nuclear Experiment, Magnetic dipole
Abstract

Ultracold neutrons were stored in a volume, using a magnetic dipole field shutter. Radial confinement was provided by material walls. Low-field seeking neutrons were axially confined above the magnetic field. High-field seeking neutrons are trapped inside the magnetic field. They can systematically shift the measured neutron lifetime to lower values in experiments with magnetic confinement. ISSN:0370-2693 ISSN:0031-9163 ISSN:1873-2445

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