Lake Baikal neutrino experiment: Selected results

Balkanov, V.; Белолаптиков, И. А.; Bezrukov, L.; Буднев, Н.; Chensky, A. G.; Danilchenko, I. A.; Dzhilkibaev, Zh.-A.M.; Domogatsky, G. V.; Дорошенко, А. А.; Fialkovsky, S.V.; Гапоненко, O. Н.; Garus, A. A.; Гресс, Т.; Kiss, D.; Klimov, A. I.; Klimushin, S.I.; Кошечкин, А. П.; Kuznetzov, Vy.; Kulepov, V.F.; Kuzmichev, L. A.; Lovzov, S.V.; Laudenskaite, J. J.; Лубсандоржиев, Б.; Milenin, M.B.; Миргазов, Р. Р.; Moseiko, N. I.; Netikov, V.A.; Osipova, E.; Панфилов, А. И.; Parfenov, Yu. V.; Pavlov, A. A.; Pliskovsky, E. N.; Pokhil, P. G.; Popova, E.; Rozanov, M.I.; Sokalski, I. A.; Spiering, C.; Streicher, O.; Tarashansky, B.; Toht, G.; Thon, T.; Vasiliev, R.; Wischnewski, R.; Yashin, I. V.

doi:10.1134/1.855731

Cited by 18 publications

(21 citation statements)

References 13 publications

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“…Observation of muon neutrinos provide the best hope for the neutrino channel since the resulting upgoing muons produced in the Earth can be distinguished from background down-going atmospheric muons and have long range in present and planned Cherenkov neutrino detectors. These include AMANDA, ANTARES, IceCube, Baikal and NESTOR (see, for example, [33,34,35]; see also [36] for a recent review). The Sun, being dominated by hydrogen, is particularly favourable, with predictions of the muon rates for different neutralino models also easier to calculate.…”

Section: Prhep Hep2001mentioning

confidence: 99%

Limits on WIMP dark matter

Spooner

Kudryavtsev

2001

Proceedings of International Europhysics Conference on High Energy Physics — PoS(hep2001)

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Abstract:The current state searches for dark matter in the form of Weakly Interacting Massive Particles (WIMPs) using both direct and indirect techniques is reviewed. Advances in recent years by various direct search experiments, utilising technology able to record the nuclear recoil events expected from elastic scattering by WIMPs, have allowed progress towards lower limits to be made. In particular, the Edelweiss and CDMS collaborations are achieving sensitiviy able to challenge data from DAMA interpreted as evidence for WIMPs of mass in the region of 60 GeV. Meanwhile, indirect searches, based on observing the annihilation products of neutralino-neutralino interactions in the Earth, Sun and Galaxy, have produced intriguing results. For instance, analysis by Superkamiokande now suggests limits comparable with the best direct search results. WIMP Direct SearchesWIMPs interact with normal matter by elastic scattering off nuclei. The energy deposited by the resulting recoil nuclei or atoms has a characteristic exponential spectrum. This is determined mainly by the kinematics of the interaction, the WIMP mass relative to that of the recoiling nuclei and the velocity of the WIMP, determined by the velocity of the Earth through the galactic halo. The favoured range of WIMP masses, velocities and likely cross sections (for instance for MSSM) lead to recoil spectra expected to have energy ranging from a few keV upto a few hundred keV with rate <1 kg −1 day −1 . The latter rate is typically a factor of 10 6 lower than the ambient rate from background gammas due to surrounding natural radioactivity [1].These characteristics determine basic requirements of direct detection technology, the need for low energy threshold and some means of identifying genuine recoils from the much higher rate of background electron recoils. The latter is feasible in principle because the * Speaker.

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Section: Prhep Hep2001mentioning

confidence: 99%

Limits on WIMP dark matter

Spooner

Kudryavtsev

2001

Proceedings of International Europhysics Conference on High Energy Physics — PoS(hep2001)

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“…There are several Cherenkov light-based neutrino telescopes currently operating or under construction in the Antarctic (AMANDA [23,24] and IceCube [10]), in Lake Baikal [25,26], and in the Mediterranean (ANTARES [27], NEMO [28], and NESTOR [29]). The total flux of staus through a detector is proportional to the initial flux of high-energy cosmic neutrinos F , attenuated inside the Earth according to the total inelastic neutrino-nucleon cross section σ νN .…”

Section: Detection Rate At Neutrino Telescopesmentioning

confidence: 99%

Heat Treatment of Amorphous and Polycrystalline Silicon Thin Films with High-Pressure H₂O Vapor

Sameshima

Satoh

Sakamoto

et al. 1998

Jpn. J. Appl. Phys.

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We perform an exhaustive study of the role neutrino telescopes could play in the discovery and exploration of supersymmetric extensions of the Standard Model with a long-lived stau next-to-lightest superparticle. These staus are produced in pairs by cosmic neutrino interactions in the Earth matter. We show that the background of stau events to the standard muon signal is negligible and plays no role in the determination of the cosmic neutrino flux. On the other hand, one can expect up to 50 pair events per year in a cubic kilometre detector such as IceCube, if the superpartner mass spectrum and the high-energy cosmic neutrino flux are close to experimental bounds.Keywords: ultra high energy photons and neutrinos, neutrino and gamma astronomy ArXiv ePrint: hep-ph/0604188

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“…For the experiment at Baikal lake, the muon angular distributions, as well as the depth dependence of the vertical muon flux, were studied in the data taken with NT-36 to NT-96 detector [4]. In the work done by Balkanov et al [4], the experimental results of the shore shadow effect were presented as the ratio of zenith angle distribution of muons from the north and south. A sharp deficit in the number of muons arriving from the north was observed in the zenith angles larger than 70 • .…”

Section: Introductionmentioning

confidence: 99%

Shore Shadow Effect in Baikal

2022

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The measurement of the individual charged particles especially muons in an extended air shower (EAS) resulting from primary cosmic rays provides important distinguishing parameters to identify the chemical composition of the cosmic primary particles. For Neutrino Telescope experiments like Baikal-GVD, the estimation of underwater muon flux is of importance to study atmospheric muons. In this paper, a GEANT4-based simulation is presented to estimate the atmospheric muon flux underwater taking Baikal-GVD as an example. The location of the Baikal-GVD experiment at Lake Baikal provides a unique opportunity to study the passage of muons through its northern shore and the water. The muons arriving from the north direction will lose more energy as compared to those arriving from the south. An approximation for the northern shore is also simulated in the GEANT4 geometry and the results of the simulation are compared with the measurements from the NT-96 detector. The results of the simulations are consistent with the shore shadow observed in the measurements in the NT-96. This approach can also be used to propagate the muons from generators like CORSIKA through long distances in matter like water, ice, earth, etc. for simulations in such experiments.

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Lake Baikal neutrino experiment: Selected results

Abstract: We review the present status of the Baikal Neutrino Project. The construction and performance of the large deep underwater Cherenkov detector NT-200 with 192 PMTs , which is currently taking data in Lake Baikal, are described. Some results from intermediate detector stages are presented.

Cited by 18 publications

References 13 publications

Limits on WIMP dark matter

Limits on WIMP dark matter

Heat Treatment of Amorphous and Polycrystalline Silicon Thin Films with High-Pressure H₂O Vapor

Shore Shadow Effect in Baikal

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Lake Baikal neutrino experiment: Selected results

Abstract: We review the present status of the Baikal Neutrino Project. The construction and performance of the large deep underwater Cherenkov detector NT-200 with 192 PMTs , which is currently taking data in Lake Baikal, are described. Some results from intermediate detector stages are presented.

Cited by 18 publications

References 13 publications

Limits on WIMP dark matter

Limits on WIMP dark matter

Heat Treatment of Amorphous and Polycrystalline Silicon Thin Films with High-Pressure H2O Vapor

Shore Shadow Effect in Baikal

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Product

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About

Heat Treatment of Amorphous and Polycrystalline Silicon Thin Films with High-Pressure H₂O Vapor