Theia: an advanced optical neutrino detector

Askins, M.; Bagdasarian, Z.; Barros, N.; Beier, E. W.; Blucher, E.; Bonventre, R.; Bourret, Edith; Callaghan, E. J.; Caravaca, J.; Diwan, M. V.; Dye, S. T.; Eisch, J.; Elagin, A.; Enqvist, T.; Fischer, V.; Frankiewicz, K.; Grant, C.; Guffanti, D.; Hagner, C.; Hallin, A. L.; Jackson, C. M.; Jiang, Runyu; Kaptanoglu, T.; Klein, J. R.; Kolomensky, Yu. G.; Kraus, C.; Krennrich, F.; Kutter, T.; Lachenmaier, T.; Land, B. J.; Lande, K.; Learned, J. G.; Lozza, V.; Ludhová, L.; Malek, M.; Manecki, S.; Maneira, J.; Maricic, J.; Martýn, J.; Mastbaum, A.; Mauger, C.; Moretti, Federico; Napolitano, J.; Naranjo, Brian; Nieslony, M.; Oberauer, L.; Gann, G. D. Orebi; Ouellet, J. L.; Pershing, T.; Petcov, S.T.; Pickard, L.; Rosero, R.; Sanchez, M. C.; Sawatzki, Julia; Seo, S. H.; Smiley, M.; Smy, M. B.; Stahl, A.; Steiger, Hans; Stock, Matthias Raphael; Sunej, H.; Svoboda, R.; Tiras, E.; Trzaska, W. H.; Tzanov, M.; Vagins, M. R.; Vilela, C.; Wang, Z.; Wang, J.; Wetstein, M.; Wilking, M. J.; Winslow, L. A.; Wittich, P.; Wonsak, B.; Worcester, E.; Wurm, M.; Yang, G.; Yeh, M.; Zimmerman, E. D.; Zsoldos, S.; Zuber, Κ.

doi:10.1140/epjc/s10052-020-7977-8

Cited by 119 publications

(129 citation statements)

References 123 publications

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“…While a 1.5 cpd/100 ton precision is translated, according to Eq. 15, to a precision that is about three to four times larger than the precision of the GS98 and AGSS09 catalogues, a future measurement of R CNO with a precision 0.5 cpd/100 ton (achievable by next generation experiments [49][50][51]) will be able to constrain the C+N fraction of the Sun with an uncertainty 15%, which is comparable to the precision of the current estimations obtained from measurements of the photosphere.…”

Section: Cno Neutrinos As Cn Abundance Messengersmentioning

confidence: 89%

Sensitivity to neutrinos from the solar CNO cycle in Borexino

Agostini¹,

Altenmüller²,

Appel³

et al. 2020

Eur. Phys. J. C

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Neutrinos emitted in the carbon, nitrogen, oxygen (CNO) fusion cycle in the Sun are a sub-dominant, yet crucial component of solar neutrinos whose flux has not been measured yet. The Borexino experiment at the Laboratori Nazionali del Gran Sasso (Italy) has a unique opportunity to detect them directly thanks to the detector’s radiopurity and the precise understanding of the detector backgrounds. We discuss the sensitivity of Borexino to CNO neutrinos, which is based on the strategies we adopted to constrain the rates of the two most relevant background sources, $$pep$$ pep neutrinos from the solar pp-chain and $$^{210}$$ 210 Bi beta decays originating in the intrinsic contamination of the liquid scintillator with $$^{210}$$ 210 Pb. Assuming the CNO flux predicted by the high-metallicity Standard Solar Model and an exposure of 1000 days $$\times $$ × 71.3 t, Borexino has a median sensitivity to CNO neutrino higher than 3 $$\sigma $$ σ . With the same hypothesis the expected experimental uncertainty on the CNO neutrino flux is 23%, provided the uncertainty on the independent estimate of the $$^{210}\text {Bi}$$ 210 Bi interaction rate is 1.5 $$\hbox {cpd}/100~\hbox {ton}$$ cpd / 100 ton . Finally, we evaluated the expected uncertainty of the C and N abundances and the expected discrimination significance between the high and low metallicity Standard Solar Models (HZ and LZ) with future more precise measurement of the CNO solar neutrino flux.

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Section: Cno Neutrinos As Cn Abundance Messengersmentioning

confidence: 89%

Sensitivity to neutrinos from the solar CNO cycle in Borexino

Agostini¹,

Altenmüller²,

Appel³

et al. 2020

Eur. Phys. J. C

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“…The future Water-Cherenkov Hyper-Kamiokande detector plans 187 kton fiducial volume for the detection of 8 B and hep solar neutrinos [143]. Among the next-generation experiments with novel detection techniques aiming at solar and geoneutrino measurements, THEIA [50] considers a few-tens-of-kton-scale detector filled with water-based liquid scintillator, combining the advantages of water (directional Cherenkov light) and liquid scintillator (high light yield) detectors. The sensitivity of the next-generation experiments for direct Dark Matter WIMP searches will be limited by the so-called "neutrino floor" [144][145][146], an irreducible background due to the coherent elastic neutrino-nucleus scattering (CEνNS) of neutrinos from natural sources, in particular solar neutrinos.…”

Section: Discussionmentioning

confidence: 99%

“…Even today, they are at the base of the most precise determination of the θ 12 mixing angle [46]. More recently, they are being used in searches for physics beyond the Standard Model [17,47] and are among the goals of future experiments [48][49][50][51]. The vast majority (about 99%) of the energy produced in the Sun comes from a series of reactions fusing Hydrogen to Helium, called pp chain.…”

Section: Solar Neutrinosmentioning

confidence: 99%

Borexino Results on Neutrinos from the Sun and Earth

et al. 2021

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Borexino is a 280-ton liquid scintillator detector located at the Laboratori Nazionali del Gran Sasso in Italy. Since the start of its data-taking in May 2007, it has provided several measurements of low-energy neutrinos from various sources. At the base of its success lie unprecedented levels of radio-purity and extensive thermal stabilization, both resulting from a years-long effort of the collaboration. Solar neutrinos, emitted in the Hydrogen-to-Helium fusion in the solar core, are important for the understanding of our star, as well as neutrino properties. Borexino is the only experiment that has performed a complete spectroscopy of the pp chain solar neutrinos (with the exception of the hep neutrinos contributing to the total flux at 10−5 level), through the detection of pp, 7Be, pep, and 8B solar neutrinos and has experimentally confirmed the existence of the CNO fusion cycle in the Sun. Borexino has also detected geoneutrinos, antineutrinos from the decays of long-lived radioactive elements inside the Earth, that can be exploited as a new and unique tool to study our planet. This paper reviews the most recent Borexino results on solar and geoneutrinos, from highlighting the key elements of the analyses up to the discussion and interpretation of the results for neutrino, solar, and geophysics.

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“…sntools was initially developed to study supernova model discrimination with Hyper-Kamiokande (Migenda, 2019) and is also used to develop a supernova DAQ system for the same experiment. More recently, sntools was adapted by the WATCHMAN (Askins et al, 2015) experiment and for early studies for the THEIA detector concept (Askins et al, 2020).…”

Section: Statement Of Needmentioning

confidence: 99%