NSR Query Results
Output year order : Descending NSR database version of May 10, 2024. Search: Author = A.V.Vassiljev Found 8 matches. 2018SE09 Phys.Rev. C 97, 055503 (2018) A.P.Serebrov, E.A.Kolomensky, A.K.Fomin, I.A.Krasnoshchekova, A.V.Vassiljev, D.M.Prudnikov, I.V.Shoka, A.V.Chechkin, M.E.Chaikovskiy, V.E.Varlamov, S.N.Ivanov, A.N.Pirozhkov, P.Geltenbort, O.Zimmer, T.Jenke, M.Van der Grinten, M.Tucker Neutron lifetime measurements with a large gravitational trap for ultracold neutrons RADIOACTIVITY 1n(β-); measured Iβ, T1/2 of free neutron, storage cycles for two different holding times, temperature dependence of the UCN storage time, inverse UCN loss rate, neutron count rates before (reactor cycle 179) and after (reactor cycle 181) using gravitationally trapped ultra-cold neutrons (UCN) at Institute Laue-Langevin (ILL) using the PF2 MAM UCN beam; deduced trap-neutron collision frequency, systematic error in T1/2 measurements using Monte Carlo simulations, influence of the residual gas on UCN storage. Comparison with previous experimental values in the last 17 years, and with evaluations by Particle Data Group. Discussed problem of a 3.9σ discrepancy between measurements of half-life of free neutron using neutrons in beams and those with stored ultracold neutrons (UCN).
doi: 10.1103/PhysRevC.97.055503
2017SE25 JETP Lett. 106, 623 (2017) A.P.Serebrov, E.A.Kolomenskiy, A.K.Fomin, I.A.Krasnoschekova, A.V.Vassiljev, D.M.Prudnikov, I.V.Shoka, A.V.Chechkin, M.E.Chaikovskii, V.E.Varlamov, S.N.Ivanov, A.N.Pirozhkov, P.Geltenbort, O.Zimmer, T.Jenke, M.Van der Grinten, M.Tucker New measurement of the neutron lifetime with a large gravitational trap RADIOACTIVITY 1NN(β-); measured decay products; deduced T1/2. Comparison with available data.
doi: 10.1134/S0021364017220143
2015SE16 Phys.Rev. C 92, 055501 (2015) A.P.Serebrov, E.A.Kolomenskiy, A.N.Pirozhkov, I.A.Krasnoschekova, A.V.Vassiljev, A.O.Polyushkin, M.S.Lasakov, A.N.Murashkin, V.A.Solovey, A.K.Fomin, I.V.Shoka, O.M.Zherebtsov, P.Geltenbort, S.N.Ivanov, O.Zimmer, E.B.Alexandrov, S.P.Dmitriev, N.A.Dovator New search for the neutron electric dipole moment with ultracold neutrons at ILL NUCLEAR MOMENTS 1n; measured Ramsey resonance curves, neutron electric dipole moment (EDM) using ultracold neutrons (UCN) from High-Flux Reactor of ILL-Grenoble and double-chamber magnetic resonance spectrometer developed at PNPI-Gatchina; deduced an upper limit of EDM. Discussed possibilities for further improvement.
doi: 10.1103/PhysRevC.92.055501
2014SE08 JETP Lett. 99, 4 (2014) A.P.Serebrov, E.A.Kolomenskiy, A.N.Pirozhkov, I.A.Krasnoschekova, A.V.Vassiljev, A.O.Polushkin, M.S.Lasakov, A.K.Fomin, I.V.Shoka, V.A.Solovey, O.M.Zherebtsov, P.Geltenbort, S.N.Ivanov, O.Zimmer, E.B.Alexandrov, S.P.Dmitriev, N.A.Dovator New measurements of the neutron electric dipole moment NUCLEAR MOMENTS 1NN; measured frequencies of neutron precession; deduced electric dipole moment. Comparison with available data.
doi: 10.1134/S0021364014010111
2014SE09 Phys.Rev. C 89, 044002 (2014) A.P.Serebrov, P.Geltenbort, O.M.Zherebtsov, S.V.Sbitnev, V.E.Varlamov, A.V.Vassiljev, M.S.Lasakov, I.A.Krasnoschekova, S.N.Ivanov, D.Pushin Experimental search for long-range forces in neutron scattering via a gravitational spectrometer NUCLEAR REACTIONS He(n, n), E=ultracold; measured storage time of neutrons in the UCN trap, transfer of recoil energy using the gravitational spectrometer at ILL-Grenoble reactor facility; deduced scattering σ, constraints on the strength of the long-range "fifth" force. Comparison with neutron interferometer technique and transmission method.
doi: 10.1103/PhysRevC.89.044002
2013SE13 JETP Lett. 97, 670 (2013) A.P.Serebrov, P.Geltenbort, O.M.Zherebtsov, S.V.Sbitnev, V.E.Varlamov, A.V.Vassiljev, M.S.Lasakov, I.A.Krasnoschekova, S.N.Ivanov Measurement of the total cross sections of ultracold neutrons with noble gases and search for long-range forces NUCLEAR REACTIONS He, Ne, Ar, Kr, Xe(n, X), E<0.0000003 eV; measured reaction products; deduced σ, neutron decay probability parameters. Comparison with theoretical calculations.
doi: 10.1134/S0021364013120114
2011SE10 Phys.Rev. C 84, 044001 (2011) A.P.Serebrov, O.M.Zherebtsov, S.V.Sbitnev, V.E.Varlamov, A.V.Vassiljev, M.S.Lasakov Search for long-range force between a neutron and an atom with a trap of ultracold neutrons NUCLEAR REACTIONS He, Ne, Ar, Kr(n, X), E=ultracold; analyzed total interaction σ of neutrons with free atoms to search for long-range forces between neutrons and atoms.
doi: 10.1103/PhysRevC.84.044001
2008SE08 Phys.Rev. C 78, 035505 (2008) A.P.Serebrov, V.E.Varlamov, A.G.Kharitonov, A.K.Fomin, Yu.N.Pokotilovski, P.Geltenbort, I.A.Krasnoschekova, M.S.Lasakov, R.R.Taldaev, A.V.Vassiljev, O.M.Zherebtsov Neutron lifetime measurements using gravitationally trapped ultracold neutrons RADIOACTIVITY 1n(β-); measured half-life using gravitationally trapped ultracold neutrons.
doi: 10.1103/PhysRevC.78.035505
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