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arXiv · 2107.14510

Methods for the suppression of background cascades produced along atmospheric muon tracks in the Baikal-GVD

V. A. Allakhverdyan·A. D. Avrorin·A. V. Avrorin·V. M. Aynutdinov·R. Bannasch·Z. Bardačová·I. A. Belolaptikov·I. V. Borina·V. B. Brudanin·N. M. Budnev·V. Y. Dik·G. V. Domogatsky·A. A. Doroshenko·R. Dvornický·A. N. Dyachok·Zh. -A. M. Dzhilkibaev·E. Eckerová·T. V. Elzhov·L. Fajt·S. V. Fialkovski·A. R. Gafarov·K. V. Golubkov·N. S. Gorshkov·T. I. Gress·M. S. Katulin·K. G. Kebkal·O. G. Kebkal·E. V. Khramov·M. M. Kolbin·K. V. Konischev·K. A. Kopański·A. V. Korobchenko·A. P. Koshechkin·V. A. Kozhin·M. V. Kruglov·M. K. Kryukov·V. F. Kulepov·Pa. Malecki·Y. M. Malyshkin·M. B. Milenin·R. R. Mirgazov·D. V. Naumov·V. Nazari·W. Noga·D. P. Petukhov·E. N. Pliskovsky·M. I. Rozanov·V. D. Rushay·E. V. Ryabov·G. B. Safronov·B. A. Shaybonov·M. D. Shelepov·F. Šimkovic·A. E. Sirenko·A. V. Skurikhin·A. G. Solovjev·M. N. Sorokovikov·I. Štekl·A. P. Stromakov·E. O. Sushenok·O. V. Suvorova·V. A. Tabolenko·B. A. Tarashansky·Y. V. Yablokova·S. A. Yakovlev·D. N. Zaborov
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Abstract

The Baikal-GVD (Gigaton Volume Detector) is a km$^{3}$- scale neutrino telescope located in Lake Baikal. Currently (year 2021) the Baikal-GVD is composed of 2304 optical modules divided to 8 independent detection units, called clusters. Specific neutrino interactions can cause Cherenkov light topology, referred to as a cascade. However, cascade-like events originate from discrete stochastic energy losses along muon tracks. These cascades produce the most abundant background in searching for high-energy neutrino cascade events. Several methods have been developed, optimized, and tested to suppress background cascades.

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V. A. Allakhverdyan, A. D. Avrorin, A. V. Avrorin, V. M. Aynutdinov, R. Bannasch, Z. Bardačová, I. A. Belolaptikov, I. V. Borina, V. B. Brudanin, N. M. Budnev, V. Y. Dik, G. V. Domogatsky, A. A. Doroshenko, R. Dvornický, A. N. Dyachok, Zh. -A. M. Dzhilkibaev, E. Eckerová, T. V. Elzhov, L. Fajt, S. V. Fialkovski, A. R. Gafarov, K. V. Golubkov, N. S. Gorshkov, T. I. Gress, M. S. Katulin, K. G. Kebkal, O. G. Kebkal, E. V. Khramov, M. M. Kolbin, K. V. Konischev, K. A. Kopański, A. V. Korobchenko, A. P. Koshechkin, V. A. Kozhin, M. V. Kruglov, M. K. Kryukov, V. F. Kulepov, Pa. Malecki, Y. M. Malyshkin, M. B. Milenin, R. R. Mirgazov, D. V. Naumov, V. Nazari, W. Noga, D. P. Petukhov, E. N. Pliskovsky, M. I. Rozanov, V. D. Rushay, E. V. Ryabov, G. B. Safronov, B. A. Shaybonov, M. D. Shelepov, F. Šimkovic, A. E. Sirenko, A. V. Skurikhin, A. G. Solovjev, M. N. Sorokovikov, I. Štekl, A. P. Stromakov, E. O. Sushenok, O. V. Suvorova, V. A. Tabolenko, B. A. Tarashansky, Y. V. Yablokova, S. A. Yakovlev, D. N. Zaborov. 2021-07-30. Methods for the suppression of background cascades produced along atmospheric muon tracks in the Baikal-GVD. https://doi.org/10.22323/1.395.1114

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