Search Results - "Varlamov, V. E"

New experimental limits on neutron – mirror neutron oscillations in the presence of mirror magnetic field by Berezhiani, Z., Biondi, R., Geltenbort, P., Krasnoshchekova, I. A., Varlamov, V. E., Vassiljev, A. V., Zherebtsov, O. M.

“…Present experimental and astrophysical limits do not exclude that the neutron ( n ) oscillation into mirror neutron ( n ′ ), a sterile state exactly degenerate…”
Get full text

Echocardiographic findings in acromegaly: prevalence of concentric left ventricular remodeling in a large single-center cohort by Hinojosa-Amaya, J. M., Varlamov, E. V., Yedinak, C. G., Cetas, J. S., McCartney, S., Banskota, S., Fleseriu, M.

“…Purpose Acromegaly is a rare disease and is associated with increased cardiovascular (CV) morbidity and mortality, especially in patients with uncontrolled…”
Get full text

New measurement of the neutron lifetime with a large gravitational trap by Serebrov, A. P., Kolomenskiy, E. A., Fomin, A. K., Krasnoschekova, I. A., Vassiljev, A. V., Prudnikov, D. M., Shoka, I. V., Chechkin, A. V., Chaikovskii, M. E., Varlamov, V. E., Ivanov, S. N., Pirozhkov, A. N., Geltenbort, P., Zimmer, O., Jenke, T., Van der Grinten, M., Tucker, M.

“…The lifetime of the neutron is one of the key physical quantities used to determine the weak interaction parameters and to test predictions of the theory of…”
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

Experimental Setup for Neutron Lifetime Measurements with a Large Gravitational Trap at Low Temperatures by Serebrov, A. P., Kolomenskii, E. A., Fomin, A. K., Koptyukhov, A. O., Krasnoshchekova, I. A., Vasil’ev, A. V., Prudnikov, D. M., Shoka, I. V., Chechkin, A. V., Chaikovskii, M. E., Varlamov, V. E., Ivanov, S. N., Pirozhkov, A. N., Geltenbort, P., Zimmer, O., Jenke, T., van der Grinten, M. G. D., Tucker, M. A. H.

“…Currently the most accurate measurements of neutron lifetime are being performed at the Petersburg Nuclear Physics Institute with ultracold neutrons (UCNs)…”
Get full text

On the Role of a Decentralized Control System in Adaptation to High Ambient Temperature in a Population of the Oligochaete Tubifex tubifex by Gainutdinov, M Kh, Yargunov, V G, Kalinnikova, T B, Gainutdinov, T M, Varlamov, V E

Get full text

New experimental limits on neutron - mirror neutron oscillations in the presence of mirror magnetic field by Berezhiani, Z, Biondi, R, Geltenbort, P, Krasnoshchekova, I. A, Varlamov, V. E, Vassiljev, A. V, Zherebtsov, O. M

“…Present probes do not exclude that the neutron ($n$) oscillation into mirror neutron ($n'$), a sterile state exactly degenerate in mass with the neutron, can…”
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

Neutron lifetime measurements with the big gravitational trap for ultracold neutrons by Serebrov, A. P, Kolomensky, E . A, Fomin, A. K, Krasnoschekova, I. A, Vassiljev, A. V, Prudnikov, D. M, Shoka, I. V, Chechkin, A. V, Chaikovskiy, M. E, Varlamov, V. E, Ivanov, S. N, Pirozhkov, A. N, Geltenbort, P, Zimmer, O, Jenke, T, Van der Grinten, M, Tucker, M

“…Phys. Rev. C 97, 055503 (2018) Neutron lifetime is one of the most important physical constants which determines parameters of the weak interaction and…”
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

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

New installation for measuring a neutron lifetime with a big gravitational trap of ultra cold neutrons by Serebrov, A. P., Fomin, A. K., Kharitonov, A. G., Varlamov, V. E., Chechkin, A. V.

“…At present the highest precision of neutron lifetime measurements has been achieved by the experiment made in Petersburg Nuclear Physics Institute (PNPI) with…”
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

Neutron lifetime measurement on setups with gravitational trap by Serebrov, A. P., Fomin, A. K., Kharitonov, A. G., Varlamov, V. E., Kolomenskiy, E. A., Krasnoshchekova, I. A., Chechkin, A. V.

“…Currently, the best accuracy of neutron lifetime measurements has been attained in the experiment with a gravitational trap for ultracold neutrons (UCNs),…”
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

Coding of chemosensory information by the nervous system ofDaphnia magna andEnchytraeus albidus under conditions of action of high environmental temperature by Gainutdinov, M. Kh, Yargunov, V. G., Krasnoperova, I. A., Varlamov, V. E., Kalinnikova, T. B., Povoda, V. I., Petrova, R. B., Gainutdinov, T. M.

“…Chemical stimuli (glutamate, glycine, cAMP, and AMP) cause slow and pronounced changes in thermostability of the organisms ofDaphnia magna andEnchytraeus…”
Get full text

Observation of the penetration of subbarrier ultracold neutrons through beryllium foils and coatings by Varlamov, V. E., Nesvizhevskii, V. V., Serebrov, A. P., Tal’daev, R. R., Kharitonov, A. G., Geltenbort, P., Pendlebury, M., Strelkov, A. V., Shvetsov, V. N., Schreckenbach, K.

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

“…JETP Lett.91:6-10,2010 The search for CP violating forces between nucleons in the so-called axion window of force ranges lam between 2x10^-5 m and 0.02 m is…”
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

Program for studying fundamental interactions at the PIK reactor facilities by Serebrov, A. P., Vassiljev, A. V., Varlamov, V. E., Geltenbort, P., Gridnev, K. A., Dmitriev, S. P., Dovator, N. A., Egorov, A. I., Ezhov, V. F., Zherebtsov, O. M., Zinoviev, V. G., Ivochkin, V. G., Ivanov, S. N., Ivanov, S. A., Kolomensky, E. A., Konoplev, K. A., Krasnoschekova, I. A., Lasakov, M. S., Lyamkin, V. A., Martemyanov, V. P., Murashkin, A. N., Neustroev, P. V., Onegin, M. S., Petelin, A. L., Pirozhkov, A. N., Polyushkin, A. O., Prudnikov, D. V., Ryabov, V. L., Samoylov, R. M., Sbitnev, S. V., Fomin, A. K., Fomichev, A. V., Zimmer, O., Cherniy, A. V., Shoka, I. V.

“…A research program aimed at studying fundamental interactions by means of ultracold and polarized cold neutrons at the GEK-4-4′ channel of the PIK reactor is…”
Get full text