Search Results - "Lasakov, M. S."

Specifics of Preparation of Storage Chambers for Ultracold Neutrons and EDM Spectrometer Sensitivity by Lasakov, M. S., Pirozhkov, A. N., Serebrov, A. P.

“…Storage cells for ultracold neutrons (UCNs) are crucial parts of the experimental setup used to measure the electric dipole moment (EDM) of a neutron. The…”
Get full text

Search for neutron–mirror neutron oscillations in a laboratory experiment with ultracold neutrons by Serebrov, A.P., Aleksandrov, E.B., Dovator, N.A., Dmitriev, S.P., Fomin, A.K., Geltenbort, P., Kharitonov, A.G., Krasnoschekova, I.A., Lasakov, M.S., Murashkin, A.N., Shmelev, G.E., Varlamov, V.E., Vassiljev, A.V., Zherebtsov, O.M., Zimmer, O.

“…Mirror matter is considered as a candidate for dark matter. In connection with this an experimental search for neutron–mirror neutron (nn′) transitions has…”
Get full text

Replica neutron guides for experiments with ultracold neutrons by Serebrov, A. P., Vasil’ev, A. V., Lasakov, M. S., Siber, E. V., Murashkin, A. N., Egorov, A. I., Fomin, A. K., Sbitnev, S. V., Geltenbort, P., Zimmer, O.

“…The method for producing neutron guides for ultracold neutrons based on the replica method has been described. A comparative analysis of the quality of replica…”
Get full text

Ultracold-neutron infrastructure for the PNPI/ILL neutron EDM experiment by Serebrov, A.P., Geltenbort, P., Shoka, I.V., Shmelev, G.E., Kharitonov, A.G., Vassiliev, A.V., Krasnoshekova, I.A., Lasakov, M.S., Siber, E.V., Fomin, A.K., Zimmer, O.

“…A PNPI/ILL experiment to measure the neutron electric dipole moment (EDM) is currently being prepared at the facility PF2 for ultracold neutrons (UCN) at the…”
Get full text

Low-energy heating of ultracold neutrons during their storage in material bottles by Serebrov, A.P, Butterworth, J, Daum, M, Fomin, A.K, Geltenbort, P, Kirch, K, Krasnoschekova, I.A, Lasakov, M.S, Rudnev, Yu.P, Varlamov, V.E, Vassiljev, A.V

“…We have studied the low-energy heating of ultracold neutrons during their storage. On fomblin, it is greatly suppressed for the low temperature liquid and at…”
Get full text

Experimental study of quasi-elastic scattering of ultracold neutrons by Steyerl, A., Yerozolimsky, B.G., Serebrov, A.P., Geltenbort, P., Achiwa, N., Pokotilovski, Yu.N., Kwon, O., Lasakov, M.S., Krasnoshchokova, I.A., Vasilyev, A.V.

Get full text

Superconducting UCN polarizer for a new EDM spectrometer by Serebrov, A.P., Lasakov, M.S., Fomin, A.K., Geltenbort, P., Murashkin, A.N., Krasnoshekova, I.A., Rudnev, Yu.P., Vasiliev, A.V.

“…A test experiment has shown that the number of ultra cold neutrons (UCN) of one polarization transmitted through a 100 μm Al foil when placed in a 5 T magnetic…”
Get full text

Depolarization of ultracold neutrons during their storage in material bottles by Serebrov, A.P., Lasakov, M.S., Vassiljev, A.V., Krasnoschekova, I.A., Rudnev, Yu.P., Fomin, A.K., Varlamov, V.E., Geltenbort, P., Butterworth, J., Young, A.R., Pesavento, U.

“…The depolarization of ultracold neutrons (UCN) during their storage in traps has been investigated. The neutron spin-flip probability for the materials studied…”
Get full text

A large area silicon UCN detector with the analysis of UCN polarization by Lasakov, M.S., Serebrov, A.P., Khusainov, A.Kh, Pustovoit, A., Borisov, Yu.V., Fomin, A.K., Geltenbort, P., Kon’kov, O.I., Kotina, I.M., Shablii, A.I., Solovei, V.A., Vasiliev, A.V.

“…A silicon UCN detector with an area of 45 cm 2 and with a 6 LiF converter was developed at PNPI. The spectral efficiency of the silicon UCN detector was…”
Get full text

Experimental search for neutron–mirror neutron oscillations using storage of ultracold neutrons by Serebrov, A.P., Aleksandrov, E.B., Dovator, N.A., Dmitriev, S.P., Fomin, A.K., Geltenbort, P., Kharitonov, A.G., Krasnoschekova, I.A., Lasakov, M.S., Murashkin, A.N., Shmelev, G.E., Varlamov, V.E., Vassiljev, A.V., Zherebtsov, O.M., Zimmer, O.

“…The idea of a hidden sector of mirror partners of elementary particles has attracted considerable interest as a possible candidate for dark matter. Recently it…”
Get full text

New measurements of the neutron electric dipole moment by Serebrov, A. P., Kolomenskiy, E. A., Pirozhkov, A. N., Krasnoschekova, I. A., Vassiljev, A. V., Polushkin, A. O., Lasakov, M. S., Fomin, A. K., Shoka, I. V., Solovey, V. A., Zherebtsov, O. M., Geltenbort, P., Ivanov, S. N., Zimmer, O., Alexandrov, E. B., Dmitriev, S. P., Dovator, N. A.

“…We report a new measurement of the neutron electric dipole moment with the PNPI EDM spectrometer using the ultracold neutron source PF2 at the research reactor…”
Get full text

Measurements of the antineutrino spin asymmetry in beta decay of the neutron and restrictions on the mass of a right-handed gauge boson by Kuznetsov, IA, Serebrov, AP, Stepanenko, IV, IV, Alduschenkov, AV, Lasakov, MS, Kokin, AA, Mostovoi, YA, Yerozolimsky, BG, Dewey, MS

Get full text

Experimental studies of very cold neutrons passing through solid deuterium by Serebrov, A. P., Kolomenski, E. A., Lasakov, M. S., Mityukhlyaev, V. A., Pirozhkov, A. N., Potapov, I. A., Varlamov, V. E., Vasiliev, A. V., Young, A. R., Zakharov, A. A.

Get full text

Measurement of the antineutrino escape asymmetry with respect to the spin of the decaying neutron by Serebrov, A. P., Kuznetsov, I. A., Stepanenko, I. V., Aldushchenkov, A. V., Lasakov, M. S., Mostovoi, Yu. A., Erozolimskii, B. G., Dewey, M. S., Wietfeldt, F. E., Zimmer, O., Börner, H.

Get full text

Measurement of the total cross sections of ultracold neutrons with noble gases and search for long-range forces by Serebrov, A. P., Geltenbort, P., Zherebtsov, O. M., Sbitnev, S. V., Varlamov, V. E., Vassiljev, A. V., Lasakov, M. S., Krasnoschekova, I. A., Ivanov, S. N.

“…The comparison of results of cross section measurements by the different methods can provide useful information on existence of long-range interaction. The…”
Get full text

New measurements of neutron electric dipole moment by Serebrov, A. P, Kolomenskiy, E. A, Pirozhkov, A. N, Krasnoshekova, I. A, Vasiliev, A. V, Polyushkin, A. O, Lasakov, M. S, Fomin, A. K, Shoka, I. V, Solovey, V. A, Zherebtsov, O. M, Geltenbort, P, Zimmer, O, Ivanov, S. N, Alexandrov, E. B, Dmitriev, S. P, Dovator, N. A

“…We report a new measurement of the neutron electric dipole moment with the PNPI EDM spectrometer using the ultracold neutron source PF2 at the research reactor…”
Get full text

Search for macroscopic CP violating forces using a neutron EDM spectrometer by Serebrov, A. P., Zimmer, O., Geltenbort, P., Fomin, A. K., Ivanov, S. N., Kolomensky, E. A., Krasnoshekova, I. A., Lasakov, M. S., Lobashev, V. M., Pirozhkov, A. N., Varlamov, V. E., Vasiliev, A. V., Zherebtsov, O. M., Aleksandrov, E. B., Dmitriev, S. P., Dovator, N. A.

“…The search for CP violating forces between nucleons in the so-called axion window of force ranges λ between 2 × 10 −5 m and 0.02 m is interesting because only…”
Get full text

New method for precise determination of neutron beam polarization by Serebrov, A.P., Aldushchenkov, A.V., Lasakov, M.S., Kuznetsov, I.A., Stepanenko, I.V.

“…We report the realization of a new method for precise determination of neutron beam polarization. The analyzing system utilizes two analyzers connected by a…”
Get full text

Vacuum test bench for high-voltage tests of storage chambers in the electric dipole moment spectrometer by Lasakov, M. S., Polyushkin, A. O., Serebrov, A. P., Kolomenskii, E. A., Pirozhkov, A. N., Krasnoshchekova, I. A.

“…We describe the structure of the high-voltage test bench for checking individual insulators and their assemblies with separate control of leakage currents in…”
Get full text

New search for the neutron electric dipole moment with ultracold neutrons at ILL by Serebrov, A. P., Kolomenskiy, E. A., Pirozhkov, A. N., Krasnoschekova, I. A., Vassiljev, A. V., Polyushkin, A. O., Lasakov, M. S., Murashkin, A. N., Solovey, V. A., Fomin, A. K., Shoka, I. V., Zherebtsov, O. M., Geltenbort, P., Ivanov, S. N., Zimmer, O., Alexandrov, E. B., Dmitriev, S. P., Dovator, N. A.

Get full text