8 research outputs found
Status of COMPASS RICH-1 Upgrade with MPGD-based Photon Detectors
No full textA Set of new MPGD-based Photon Detectors is being built for the upgrade of COMPASS RICH-1. The detectors cover a total active area of 1.4 m2 and are based on a hybrid architecture consisting of two THGEM layers and a Micromegas. A CsI film on one THGEM acts as a reflective photocathode. The characteristics of the detector, the production of the components and their validation tests are described in detail.A Set of new MPGD-based Photon Detectors is being built for the upgrade of COMPASS RICH-1. The detectors cover a total active area of 1.4 m and are based on a hybrid architecture consisting of two THGEM layers and a Micromegas. A CsI film on one THGEM acts as a reflective photocathode. The characteristics of the detector, the production of the components and their validation tests are described in detail
Physics of Atomic Nuclei V. 67, I. 11
No full textPhysics of Atomic Nuclei -- November 2004
Volume 67, Issue 11, pp. 1931-2106
DARK MATTER
Aspects of Spin-Dependent Dark Matter Search
V. A. Bednyakov
pp. 1931-1941 Full Text: PDF (2317 kB)
NEUTRINO PHYSICS
Final Results on the Search for nuµ --> nue Oscillations in the NOMAD Experiment
B. A. Popov (for the NOMAD Collaboration)
pp. 1942-1947 Full Text: PDF (390 kB)
Status of the Experiment on the Measurement of the Neutrino Magnetic Moment with the Spectrometer GEMMA
A. G. Beda, V. B. Brudanin, E. V. Demidova, V. G. Egorov, M. G. Gavrilov, V. N. Kornoukhov, A. S. Starostin, and C. Vylov
pp. 1948-1952 Full Text: PDF (136 kB)
Sensitivity and Systematics of KATRIN Experiment
N. A. Titov (for the KATRIN Collaboration)
pp. 1953-1958 Full Text: PDF (227 kB)
The Need to Measure Low-Energy Antineutrinos (E nu-bar < 0.782 MeV) from the Sun
O. Manuel
pp. 1959-1962 Full Text: PDF (177 kB)
Components of Antineutrino Emission in Nuclear Reactor
V. I. Kopeikin, L. A. Mikaelyan, and V. V. Sinev
pp. 1963-1968 Full Text: PDF (161 kB)
Interaction of Electron Neutrinos with 56Fe in the LSD for Enue <= 50 MeV
Yu. V. Gaponov, O. G. Ryazhskaya, and S. V. Semenov
pp. 1969-1973 Full Text: PDF (159 kB)
DOUBLE-BETA DECAY AND RARE PROCESSES
CAMEO Project and Discovery Potential of the Future 2beta-Decay Experiments
Yu. G. Zdesenko[dagger], F. A. Danevich, and V. I. Tretyak
pp. 1974-1983 Full Text: PDF (265 kB)
The Extrapolation of NEMO Techniques to Future Generation 2beta-Decay Experiments
A. S. Barabash (and the NEMO Collaboration)
pp. 1984-1988 Full Text: PDF (370 kB)
New Search for T Violation in the Decays of the Charged Kaon
V. V. Anisimovsky et al. (for the KEK–PS E246 Collaboration)
pp. 1989-1994 Full Text: PDF (554 kB)
First Results from the NEMO-3 Experiment
O. I. Kochetov (on behalf of the NEMO Collaboration)
pp. 1995-2001 Full Text: PDF (494 kB)
The Majorana Neutrinoless Double-Beta Decay Experiment
C. E. Aalseth et al. (Majorana Collaboration)
pp. 2002-2010 Full Text: PDF (444 kB)
First Results of a Search for the Two-Neutrino Double-Beta Decay of 136Xe with High-Pressure Copper Proportional Counters
Yu. M. Gavriljuk, A. M. Gangapshev, V. V. Kuzminov, N. Ya. Osetrova, S. I. Panasenko, and S. S. Ratkevich
pp. 2011-2016 Full Text: PDF (1000 kB)
Analysis of alpha-Particle Background Events in a High-Pressure Proportional Counter
Yu. M. Gavriljuk, A. M. Gangapshev, V. V. Kuzminov, N. Ya. Osetrova, S. I. Panasenko, and S. S. Ratkevich
pp. 2017-2020 Full Text: PDF (295 kB)
The np Interaction Effects on the Double-Beta Decay Nuclear Matrix Elements for Medium-Mass Nuclei
P. K. Raina, A. Shukla, P. K. Rath, B. M. Dixit, K. Chaturverdi, R. Chandra, S. K. Dhiman, and A. J. Singh
pp. 2021-2026 Full Text: PDF (172 kB)
Looking for SUSY with EDELWEISS-I and -II
G. Gerbier et al. (EDELWEISS Collaboration)
pp. 2027-2031 Full Text: PDF (1787 kB)
Dark Matter Searches by the Boulby Collaboration and Liquid Xenon Prototype Development
A. S. Howard (on behalf of the Boulby Dark Matter Collaboration)
pp. 2032-2040 Full Text: PDF (2996 kB)
RARE PROCESSES AND ASTROPHYSICS
Neutrino Emission and Oscillations in White Dwarf Matter Accreting onto a Primordial Black Hole
V. V. Tikhomirov and S. E. Yuralevich
pp. 2041-2043 Full Text: PDF (119 kB)
Astroparticle Physics with AMS-02
A. G. Malinin (on behalf of the AMS Collaboration)
pp. 2044-2049 Full Text: PDF (262 kB)
Salt Neutrino Detector for Ultrahigh-Energy Neutrinos
M. Chiba, T. Kamijo, O. Yasuda, Y. Chikashige, T. Kon, Y. Takeoka, and R. Yoshida
pp. 2050-2053 Full Text: PDF (303 kB)
NESTOR Experiment in 2003
V. A. Zhukov et al. (NESTOR Collaboration)
pp. 2054-2057 Full Text: PDF (454 kB)
KLYPVE/TUS Space Experiments for Study of Ultrahigh-Energy Cosmic Rays
B. A. Khrenov, V. V. Alexandrov, D. I. Bugrov, G. K. Garipov, N. N. Kalmykov, M. I. Panasyuk, S. A. Sharakin, A. A. Silaev, I. V. Yashin, V. M. Grebenyuk, D. V. Naumov, A. G. Olshevsky, B. M. Sabirov, R. N. Semenov, M. Slunechka, I. I. Skryl, L. G. Tkatchev, O. A. Saprykin, V. S. Syromyatnikov, V. E. Bitkin, S. A. Eremin, A. I. Matyushkin, F. F. Urmantsev, V. Abrashin, V. Koval, Y. Arakcheev, A. Cordero, O. Martinez, E. Morena, C. Robledo, H. Salazar, L. Villasenor, A. Zepeda, I. Park, M. Shonsky, and J. Zicha
pp. 2058-2061 Full Text: PDF (245 kB)
Cosmic-Ray Muon and Atmospheric Neutrino Fluxes at Very High Energies
L. V. Volkova
pp. 2062-2065 Full Text: PDF (137 kB)
On the Possibility of Detecting Solar pp Neutrino with the Large-Volume Liquid Organic Scintillator Detector
A. V. Derbin, O. Yu. Smirnov, and O. A. Zaimidoroga
pp. 2066-2072 Full Text: PDF (292 kB)
NUCLEI
Theory
New Method for Calculating the Potential Energy of Deformed Nuclei within the Liquid-Drop Model
R. S. Kurmanov and G. I. Kosenko
pp. 2073-2079 Full Text: PDF (182 kB)
Theoretical Investigation of the Angular-Momentum Dependence of the Mean Fission Lifetime of Excited Nuclei
I. I. Gontchar, N. A. Ponomarenko, V. V. Turkin, and L. A. Litnevsky
pp. 2080-2094 Full Text: PDF (340 kB)
ELEMENTARY PARTICLES AND FIELDS
Theory
Leptonic Decays of the W Boson in a Strong Electromagnetic Field
A. V. Kurilin
pp. 2095-2100 Full Text: PDF (179 kB)
Simple Numerical Method of Computing the Probabilities of Angular Momentum Jnu Occurring among Possible Vectors J Resulting from n Angular Momentum jµ Summation (µ = 1–n)
M. Kaczmarczyk
pp. 2101-2106 Full Text: PDF (159 kB)Archived web conten
Status of COMPASS RICH-1 Upgrade with MPGD-based Photon Detectors
No full textA Set of new MPGD-based Photon Detectors is being built for the upgrade of COMPASS RICH-1. The detectors cover a total active area of 1.4 m2 and are based on a hybrid architecture consisting of two THGEM layers and a Micromegas. A CsI film on one THGEM acts as a reflective photocathode. The characteristics of the detector, the production of the components and their validation tests are described in detail
Experimental Complex TAIGA
No full textThe astrophysical complex TAIGA (Tunka Advanced Instrument for cosmic-ray physics and Gamma-ray Astronomy), whose first phase is being completed in the Tunka valley 50 km from Lake Baikal, is described. Its research program, first results, and development prospects are discussed
The precision of the IACT mechanical mounts of the TAIGA observatory
No full textThe TAIGA (Tunka Advanced Instrument for cosmic ray physics and Gamma Astronomy) observatory is located in the Tunka valley (~50 km west from the southern shore of Lake Baikal) at an altitude of 675m a.s.l. The TAIGA observatory aims to address gamma-ray astronomy at energies from a few TeV to several PeV and CR physics from 100 TeV to several EeV. Its main feature is the complementary, hybrid approach to distinguish CR events from those of gamma rays. Currently TAIGA consists of ~80 wide-angle air Cherenkov detectors (HiSCORE stations), three ~4m diameter IACTs and several hundred surface and underground muon detectors, grouped in three jointly operating arrays. The exceptional feature of the TAIGA IACT array is it’s topology that allows one to aim for the optimal cost/performance by scanning the optimal inter-telescope distances from 300m up to 600m. The IACTs have alt-azimuth type mounts and 576-pixel imaging cameras in the foci, covering 9.6° aperture in the sky. The segmented reflectors of ~10m² area follow the Davis-Cotton design. The largest diameter of the hexagonal shape reflector is 4.3m and the focal length is 4.75m. The rigid telescope mount provides a maximum displacement of EAS image below 2mm (i.e. ≤ 0.024°) in the photodetector plane. The main parameters of IACTs are of a crucial importance for their efficient operation and is presented
First Results from Operating a Prototype Wide-Angle Telescope for the TAIGA Installation
No full textThe prototype of a small wide-angle telescope was installed within the astrophysical complex TAIGA in the Tunka Valley in September 2019. Data were collected on the prototype’s performance during the last eight observation sessions. Operating regimes of the telescope’s systems, the trigger system, and the system for synchronizing with the TAIGA complex were tested. The first results from analyzing data on the prototype telescope’s performance are presented
Detecting Gamma Rays with Energies Greater than 3–4 ТeV from the Crab Nebula and Blazar Markarian 421 by Imaging Atmospheric Cherenkov Telescopes in the TAIGA Experiment
No full textThe TAIGA hybrid gamma-ray observatory is currently being developed in the Tunka Valley, 50 km from Lake Baikal, to study gamma radiation and charged cosmic ray fluxes in the 10–10 eV range. The first results are presented for detecting gamma rays from the Crab Nebula in 44 h of observation, and from the blazar Markarian 421 in 62 h of observation with a significance of around 5–6 σ by one of the TAIGA IACT telescopes
Depth of the Maximum of Extensive Air Showers (EASes) and the Mean Mass Composition of Primary Cosmic Rays in the 10–10 eV Range of Energies, According to Data from the TUNKA-133 and TAIGA-HiSCORE Arrays for Detecting EAS Cherenkov Light in the Tunkinsk Valley
No full textA corrected energy dependence of the depth of the maximum in the wide range of energies 10 to 10 eV is obtained using data collected at the Tunka-133 facility over 7 years of operation (2009–2017) and the TAIGA-HiSCORE facility in the 2019–2020 season. At the highest energies, our results match those of the Pierre Auger observatory. The results are converted to parameter ❬ln A❭, which characterizes the mean EAS composition
