Ядерна фізика та енергетика Nuclear Physics and Atomic Energy   ISSN: 1818-331X (Print), 2074-0565 (Online)   Publisher: Institute for Nuclear Research of the National Academy of Sciences of Ukraine   Languages: Ukrainian, English   Periodicity: 4 times per year   Open access peer reviewed journal

Full text (ru)

A. Sh. Georgadze, V. V. Kobychev, O. A. Ponkratenko

Institute for Nuclear Research, National Academy of Sciences of Ukraine, Kyiv, Ukraine

Abstract: The possibility to use large amount of CdWO₄ crystal scintillators to detect solar neutrino of low energies via neutrino capture reactions on ¹¹⁶Cd is investigated. The detector concept is based on placing CdWO₄ crystals in liquid scintillator inside the sphere of 18 m in diameter, on which 9500 photomultipliers are installed. Such design makes possible to reconstruct the event position inside CdWO₄ crystal with accuracy 1 mm for 1 MeV electrons. Thus, expected background from random signal coincidences can be reduced to the rate ∼300 events per year, which is of the same order of magnitude as the expected neutrino signal (260 ± 65 events per year in 30 ton of CdWO₄), taking into account neutrino detection efficiency.

1. Davis R., Jr. Solar Neutrinos. II. Experimental. Phys. Rev. Lett. 12 (1964) 303. https://doi.org/10.1103/PhysRevLett.12.303

2. Hampel W., Handt J., Heusser G. et al. GALLEX Collaboration. Phys. Lett. B 447 (1999) 127. https://doi.org/10.1016/S0370-2693(98)01579-2

3. Anselmann P., Hampel W., Heusser G. et al. Update of GALLEX solar neutrino results and implications. Nucl. Phys. B (Proc. Suppl.) 38 (1995) 68. https://doi.org/10.1016/0920-5632(94)00735-E

4. Gavrin V. SAGE Collaboration. Solar neutrino results from SAGE. Nucl. Phys. B (Proc. Suppl.) 91 (2001) 36. https://doi.org/10.1016/S0920-5632(00)00920-8

5. Fukuda Y., Hayakawa T., Ichihara E. et al. Evidence for Oscillation of Atmospheric Neutrinos. Phys. Rev. Lett. 81 (1998) 1562; https://doi.org/10.1103/PhysRevLett.81.1562

Fukuda Y., Hayakawa T., Ichihara E. et al. Constraints on Neutrino Oscillation Parameters from the Measurement of Day-Night Solar Neutrino Fluxes at Super-Kamiokande. Phys. Rev. Lett. 82 (1999) 1810; https://doi.org/10.1103/PhysRevLett.82.1810

Fukuda Y., Hayakawa T., Ichihara E. et al. Measurement of the Solar Neutrino Energy Spectrum Using Neutrino-Electron Scattering. Phys. Rev. Lett. 82 (1999) 2430. https://doi.org/10.1103/PhysRevLett.82.2430

6. Ahmad Q. R., Allen R. C., Andersen T. C. et al. Direct Evidence for Neutrino Flavor Transformation from Neutral-Current Interactions in the Sudbury Neutrino Observatory. Phys. Rev. Lett. 89 (2002) 011301; https://doi.org/10.1103/PhysRevLett.89.011301

Ahmad Q. R., Allen C. R., Andersen T. C. et al. Phys. Rev. Lett. 87 (2001) 071301. https://doi.org/10.1103/PhysRevLett.87.071301

7. Bahcall J. N., Pinsonneault M. H., Basu S. Solar Models: Current Epoch and Time Dependences, Neutrinos, and Helioseismological Properties. Astrophysical J. 555 (2001) 990; https://doi.org/10.1086/321493

Bahcall J. N., Pinsonneault M. H. Solar models with helium and heavy-element diffusion. Rev. Mod. Phys. 67 (1995) 781; https://doi.org/10.1103/RevModPhys.67.781

Bahcall J. N., Ulrich R. C. Solar models, neutrino experiments, and helioseismology. Rev. Mod. Phys. 60 (1988) 297. https://doi.org/10.1103/RevModPhys.60.297

8. Turck-Chieze S., Däppen W., Fossat E., Provost J. et al. The solar interior. Phys. Rep. 230 (1993) 57. https://doi.org/10.1016/0370-1573(93)90020-E

9. Takaaki K. Nucl. Phys. B (Proc. Suppl.) 77 (1999) 123; https://doi.org/10.1016/S0920-5632(99)00407-7

Fukuda Y., Hayakawa T., Ichihara E. et al. Measurement of the Flux and Zenith-Angle Distribution of Upward Throughgoing Muons by Super-Kamiokande. Phys. Rev. Lett. 82 (1999) 2644. https://doi.org/10.1103/PhysRevLett.82.2644

10. Ambrosio M., Antolini R., Bakari D. et al. Atmospheric neutrino oscillations from upward throughgoing muon multiple scattering in MACRO. Phys. Lett. B 566 (2003) 35. https://doi.org/10.1016/S0370-2693(03)00806-2

11. Ahn M. H., Aoki S., Bhang H. et al. Indications of Neutrino Oscillation in a 250 km Long-baseline Experiment. Phys. Rev. Lett. 90 (2003) 041801. https://doi.org/10.1103/PhysRevLett.90.041801

12. Eguchi K., Enomoto S., Furuno K. et al. First Results from KamLAND: Evidence for Reactor Antineutrino Disappearance. Phys. Rev. Lett. 90 (2003) 021802. https://doi.org/10.1103/PhysRevLett.90.021802

13. Ahmed S. N., Anthony A. E., Beier E. W. et al. Measurement of the Total Active ⁸B Solar Neutrino Flux at the Sudbury Neutrino Observatory with Enhanced Neutral Current Sensitivity. Phys. Rev. Lett. 92 (2004) 181301. https://doi.org/10.1103/PhysRevLett.92.181301

14. Aharmim B., Ahmed S. N., Anthony A. E. et al. Electron Energy Spectra, Fluxes, and Day-Night Asymmetries of ⁸B Solar Neutrinos from the 391-Day Salt Phase SNO Data Set. Phys. Rev. C 72 (2005) 055502. https://doi.org/10.1103/PhysRevC.72.055502

15. Bahcall J. N., Pena-Garay C. Global analyses as a road map to solar neutrino fluxes and oscillation parameters. J. High Energy Phys. 11 (2003) 004. https://doi.org/10.1088/1126-6708/2003/11/004

16. Alimonti G., Arpesella C., Back H. et al. Science and technology of Borexino: a real-time detector for low energy solar neutrinos. Astroparticle Physics 16 (2002) 205. https://doi.org/10.1016/S0927-6505(01)00110-4

17. Raghavan R. S. Phys. Rev. Lett. 37 (1976) 259; https://doi.org/10.1103/PhysRevLett.37.259

Raghavan R. S., Pakvasa S., Brown B. A. New Tools for Solving the Solar-Neutrino Problem. Phys. Rev. Lett. 57 (1986) 1801. https://doi.org/10.1103/PhysRevLett.57.1801

18. Ejiri H., Engel J., Hazama R. et al. Spectroscopy of Double-Beta and Inverse-Beta Decays from ¹⁰⁰Mo for Neutrinos. Phys. Rev. Lett. 85 (2000) 2917. https://doi.org/10.1103/PhysRevLett.85.2917

19. Suzuki Y. Proc. Int. Workshop on Low Energy Solar Neutrinos, LowNu2, 4 - 5 Dec. 2000, Tokyo, Japan. Ed: Y. Suzuki (Singapore: World Scientific, 2001). https://doi.org/10.1142/9789812793942_0014

20. Zuber K. Spectroscopy of low energy solar neutrinos using CdTe detectors. Phys. Lett. B 571 (2003) 148. https://doi.org/10.1016/j.physletb.2003.07.070

21. Danevich F. A., Georgadze A. Sh., Kobychev V. V. et al. Phys. Rev. C 68 (2003) 035501. https://doi.org/10.1103/PhysRevC.68.035501

22. Bellini G., Caccianiga B., Chen M. et al. Eur. Phys. J. C 19 (2001) 43. https://doi.org/10.1007/s100520100594

23. Гротц К., Клапдор-Клайнгротхаус Г. В. Слабое взаимодействие в физике ядра, частиц и астрофизике (Москва: Мир, 1992) 451 с.

24. Table of Isotopes. Ed. By V. S. Shirley (New York, 1996).

25. Danevich F. A., Georgadze A. Sh., Kobychev V. V. et al. Phys. Rev. C 62 (2000) 045501. https://doi.org/10.1103/PhysRevC.62.045501

26. Георгадзе А. Ш., Даневич Ф. А., Здесенко Ю. Г. и др. Результаты исследований 2β-распада ¹¹⁶Cd с помощью сцинтилляторов ¹¹⁶CdWO₄. Ядерная физика 58 (1995) 1170.

27. Bhattacharya M., Garci'a A., Hindi M. M. et al. Phys. Rev. C 58 (1998) 1247. https://doi.org/10.1103/PhysRevC.58.1247

28. Dorenbos P., de Hass J. T. M., van Eijk C. W. E. IEEE Trans. Nucl. Sci. 42 (1995) 2190; https://doi.org/10.1109/23.489415

Kinloch D. R., Novak W., Raby P., Toepke I. IEEE Trans. Nucl. Sci. 41 (1994) 752. https://doi.org/10.1109/23.322800

29. The SNO Collaboration. The Sudbury Neutrino Observatory. Nuclear Instruments and Methods in Physics Research A 449 (2000) 172. https://doi.org/10.1016/S0168-9002(99)01469-2

30. Ponkratenko O. A., Tretyak V. I., Zdesenko Yu. G. Event Generator DECAY4 for Simulating Double-Beta Processes and Decays of Radioactive Nuclei. Phys. of Atomic Nuclei. 63 (2000) 1282. https://doi.org/10.1134/1.855784

31. Георгадзе А. Ш., Даневич Ф. А., Здесенко Ю. Г. и др. Бета-распад ¹¹³Cd. Ядерная физика 59 (1996) 5.

32. Yoshida S., Kishimoto T., Ogawa I. et al. CANDLES project for double beta decay of ⁴⁸Ca. Nuclear Physics B (Proc. Suppl.) 138 (2005) 214. https://doi.org/10.1016/j.nuclphysbps.2004.11.051