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Your search keyword '"V. V. Ashikhmin"' showing total 6 results
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6 results on '"V. V. Ashikhmin"'

1. Search for events in the LVD detector coinciding with gravitational signals from the collapse of close binary systems

Author

N. Yu. Agafonova, V. F. Yakushev, V. V. Ashikhmin, O. G. Ryazhskaya, A. S. Malgin, R. I. Enikeev, E. A. Dobrynina, and I. R. Shaliryanova

Subjects
Physics, Gravitation, History, Detector, GW151226, Binary number, Collapse (topology), Astrophysics, Large Volume Detector, Computer Science Applications, Education
Abstract

The results of the search for events detected by the Large Volume Detector coinciding with the gravitational signals from the GW150914, GW151226, GW170104, GW170608, GW170814 and GW170817 are presented.

Published
2019
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3. Study of neutron interactions with NaCl in LVD

Author

V. F. Yakushev, I. R. Shakiryanova, O. G. Ryazhskaya, V. G. Ryasny, N. Yu. Agafonova, R. I. Enikeev, K. V. Manukovskiy, A V Udin, A. S. Malgin, V. L. Dadykin, and V. V. Ashikhmin

Subjects
Physics, History, Physics::Instrumentation and Detectors, Detector, Radiation, Computer Science Applications, Education, Nuclear physics, Gravitation, Stars, High Energy Physics::Experiment, Neutron, Neutrino, National laboratory
Abstract

LVD detector, located in Gran Sasso National Laboratory, has been working on the program of the search for neutrino radiation from gravitational collapses of stars since 1992. In 2005 additional modifications of the detector by adding NaCl target were made. For the last two years the experiment with one portatank (8 counters) of LVD has been under way. Monte-Carlo simulation and its comparison with experimental data are presented and discussed in this paper.

Published
2013
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4. Neutrons produced by muons in LVD: Monte Carlo simulation

Author

V. L. Dadykin, A. S. Malgin, V. G. Ryasny, R. I. Enikeev, O. G. Ryazhskaya, A V Udin, K. V. Manukovskiy, N. Yu. Agafonova, I. R. Shakiryanova, and V. V. Ashikhmin

Subjects
Nuclear physics, Physics, History, Muon, Physics::Instrumentation and Detectors, Astrophysics::High Energy Astrophysical Phenomena, Shield, Monte Carlo method, High Energy Physics::Experiment, Neutron, Computer Science Applications, Education
Abstract

The results of Monte-Carlo simulations of neutron production by muons in LVD obtained with Geant4 and SHIELD programs are presented. The detection efficiencies of gammas and neutons in the LVD are calculated.

Published
2013
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6. IMPLICATION FOR THE CORE-COLLAPSE SUPERNOVA RATE FROM 21 YEARS OF DATA OF THE LARGE VOLUME DETECTOR.

Author

N. Y. Agafonova, M. Aglietta, P. Antonioli, V. V. Ashikhmin, G. Badino, G. Bari, R. Bertoni, E. Bressan, G. Bruno, V. L. Dadykin, E. A. Dobrynina, R. I. Enikeev, W. Fulgione, P. Galeotti, M. Garbini, P. L. Ghia, P. Giusti, F. Gomez, E. Kemp, and A. S. Malgin

Subjects
SUPERNOVAE, CATACLYSMIC variable stars, GALACTIC X-ray sources, NEUTRINOS, LEPTONS (Nuclear physics)
Abstract

The Large Volume Detector (LVD) has been continuously taking data since 1992 at the INFN Gran Sasso National Laboratory. The LVD is sensitive to neutrino bursts from gravitational stellar collapses with full detection probability over the Galaxy. We have searched for neutrino bursts in LVD data taken over 7,335 days of operation. No evidence of neutrino signals has been found between 1992 June and 2013 December. The 90% C.L. upper limit on the rate of core collapse and failed supernova explosions out to distances of 25 kpc is found to be 0.114 yr−1. [ABSTRACT FROM AUTHOR]

Published
2015
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