Yu.V. Sobolev

Publications (2)0 Total impact

• Article: Circular polarization of γ-quanta in np→dγ reactions with polarized neutrons

  A.N. Bazhenov, L.A. Grigor'eva, V.V. Ivanov, E.A. Kolomensky, V.M. Lobashev, V.A. Nazarenko, A.N. Pirozhkov, Yu.V. Sobolev
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  ABSTRACT: The circular polarization of the 2.23 MeV γ-quanta in the reaction np→dγ with polarized cold neutrons has been measured to be Pγ=(−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.
  Physics Letters B.
• Article: New measurement of the electric dipole moment of the neutron

  I.S. Altarev, Yu.V. Borisov, N.V. Borovikova, S.N. Ivanov, E.A. Kolomensky, M.S. Lasakov, V.M. Lobashev, V.A. Nazarenko, A.N. Pirozhkov, A.P. Serebrov, Yu.V. Sobolev, E.V. Shulgina, A.I. Yegorov
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  ABSTRACT: A new experiment on the search for the electric dipole moment of the neutron was carried out using a magnetic resonance set-up with electric field and stored ultracold neutrons. The EDM of the neutron was measured to be +(2.6±4.2±1.6)×10−26e cm, the first error being RMS or statistical and the second one systematical. An upper limit at the 95% CL is |dn|<11×10−26ecm.
  Physics Letters B.