Baikal-GVD: status and prospects

Avrorin, А.D.; Avrorin, A.V.; Aynutdinov, V. M.; Баннаш, Р.; Белолаптиков, И. А.; Brudanin, V.; Буднев, Н. М.; Дорошенко, А. А.; Domogatsky, G.; Dvornický, R.; Dyachok, A. N.; Dzhilkibaev, Zh.-A.M.; Fajt, L.; Fialkovsky, S.V.; Гафаров, А. Р.; Golubkov, K.V.; Gres, T.I.; Honz, Z.; Кебкал, К.Г.; Kebkal, O.G.; Khramov, E.; Kolbin, M.M.; Konischev, K. V.; Korobchenko, A.P.; Кошечкин, А. П.; Кожин, В. А.; Kulepov, V.F.; Kuleshov, D.; Milenin, M.B.; Mirgazov, R.; Osipova, E.R.; Панфилов, А. И.; Pankov, L.; Петухов, Д. П.; Pliskovsky, E. N.; Rozanov, M.I.; Rjabov, E.V.; Rushay, V.D.; Safronov, G.; Šimkovic, F.; Shoibonov, B.; Solovjev, A.G.; Сороковиков, М. Н.; Shelepov, M.D.; Suvorova, O. V.; Shtekl, I.; Таболенко, В. А.; Tarashansky, B.; Yakovlev, S. A.; Загородников, А.; Зурбанов, В. Л.

doi:10.1051/epjconf/201819101006

Cited by 53 publications

(30 citation statements)

References 16 publications

(14 reference statements)

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“…As this process is directly sensitive to the flux of electron antineutrinos at Earth, its measurement provides flavor separation which is invaluable for understanding the production mechanisms which source UHE neutrinos [8][9][10][11]. As more data is collected at IceCube, as well as other large volume detectors such as KM3NeT [12] and Baikal-GVD [13], it is anticipated that a measurement of this process will become feasible.…”

Section: Introductionmentioning

confidence: 99%

Precise predictions for multi-TeV and PeV energy neutrino scattering rates

Gauld

2019

Phys. Rev. D

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The scattering rate of multi-TeV and PeV energy neutrinos is fast becoming an interesting topic in (astro)particle-physics. This is due to experimental progress at Neutrino Telescopes such as IceCube which have begun to gain sensitivity to the flux of neutrinos in this energy range. In view of this, a precise calculation of the scattering rate of neutrinos upon atoms is presented. The two main components of the calculation are the differential cross-section predictions for neutrino scattering upon an atomic nucleus (such as that of water), as well as upon atomic electrons. In the first case, the predictions for neutrino-nucleus cross-sections in charged-and neutral-current scattering are refined by including resonant contributions generated within the photon field of the nucleus, which alter the considered distributions by ≈ 2%. In the latter case, radiative corrections are provided for all 2 → 2 scattering processes of the formνee − → ff . For antineutrino energies of Eν e ≈ 6 PeV, where these processes become resonantly enhanced (the Glashow resonance) and dominate the total cross-section, these corrections amount to ≈ −10%. * Electronic address: r.gauld@nikhef.nl 1 Unless specifically stated, 'neutrinos' will collectively refer to both neutrinos and antineutrinos.

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Section: Introductionmentioning

confidence: 99%

Precise predictions for multi-TeV and PeV energy neutrino scattering rates

Gauld

2019

Phys. Rev. D

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“…We now also have first compelling evidence that blazars are sources of high-energy neutrinos, but they are unlikely the sole contributors of the diffuse flux. With the help of future optical Cherenkov telescopes -KM3NeT [39], Baikal-GVD [40], and IceCube-Gen2 [41] -we will be able to shed more light on these recent observations and establish high-energy neutrinos as an essential component for multi-messenger astronomy.…”

Section: Discussionmentioning

confidence: 99%

Neutrino Sources from a Multi-Messenger Perspective

Ahlers

2019

EPJ Web Conf.

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The field of high-energy neutrino astronomy is undergoing a rapid evolution. After the discovery of a diffuse flux of astrophysical TeV-PeV neutrinos in 2013, the Ice-Cube observatory has recently found first compelling evidence for neutrino emission from blazars. In this brief review, I will summarize the status of these neutrino observations and highlight the strong role of multi-messenger astronomy for their interpretation.

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“…where dσ χT /dE r is the differential cross section for DM-nucleus scattering, E r the nuclear recoil energy deposited in the collision, w = u 2 + v 2 (r) the DM particle velocity in the target nucleus rest frame at a distance r from the centre of the Sun, u the speed such a particle would have at r → ∞, µ + = (µ T + 1)/2, where µ T is the WIMP-nucleus reduced mass, E = m χ w 2 /2, and the index T runs over the 16 most abundant elements in the Sun, namely H, 3 He, 4 He, 12 C, 14 N, 16 O, 20 Ne, 23 Na, 24 Mg, 27 Al, 28 Si, 32 S, 40 Ar, 40 Ca, 56 Fe, and 58 Ni. The density of the T -th element at a distance r from the Sun's centre is denoted by n T (r) and modelled as in the DARKSUSY package, which also provides an expression for v(r) in terms of the Sun's gravitational potential [73].…”

Section: Dark Matter Capture In the Sunmentioning

confidence: 99%

Assessing the sensitivity of PINGU to effective dark matter-nucleon interactions

Bäckström

Heros

2019

J. Cosmol. Astropart. Phys.

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We calculate the sensitivity of next generation neutrino telescopes to the 28 (isoscalar and isovector) coupling constants defining the non-relativistic effective theory of (spin 1/2) dark matter (DM)-nucleon interactions. We take as a benchmark detector the proposed Precision IceCube Next Generation Upgrade (PINGU), although our results are valid for any other neutrino telescope of similar effective volume. We express PINGU's sensitivity in terms of 5σ sensitivity contours in the DM-mass -coupling constant plane, and compare our sensitivity contours with the 90% C.L. exclusion limits on the same coupling constants that we obtain from a reanalysis of the null result of current DM searches at IceCube/DeepCore. We find that PINGU can effectively probe not only the canonical spin-independent and spindependent DM-nucleon interactions, but also velocity-dependent or momentum-dependent interactions that generate coherently enhanced DM-nucleus scattering cross sections. We also find that PINGU's 5σ sensitivity contours are significantly below current IceCube/DeepCore 90% C.L. exclusion limits when bb is the leading DM annihilation channel. This result shows the importance of lowering the experimental energy threshold when probing models that generate soft neutrino energy spectra, and holds true independently of the assumed DMnucleon interaction and for all DM masses tested here. When DM primarily annihilates into ττ , a PINGU-like detector will improve upon current exclusion limits for DM masses below 35 GeV, independently of the assumed DM-nucleon interaction.

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Baikal-GVD: status and prospects

Cited by 53 publications

References 16 publications

Precise predictions for multi-TeV and PeV energy neutrino scattering rates

Precise predictions for multi-TeV and PeV energy neutrino scattering rates

Neutrino Sources from a Multi-Messenger Perspective

Assessing the sensitivity of PINGU to effective dark matter-nucleon interactions

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