Abstract
If heavy neutrinos with mass \(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l} \) are emitted in the decays of 8B in the Sun, then νH→νL+e ++e − decays should be observed. In the present work, the results of background measurements with the Borexino Counting Test Facility have been used to obtain bounds on the number of these decays. As a result, new limits on the coupling |U eH|2of a massive neutrino in the range of 1.1 MeV to 12 MeV have been derived (|U eH|2≤10−3−10−5). The obtained limits on the mixing parameter are stronger than obtained in previous experiments using nuclear reactors and accelerators.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
F. Boehm and P. Vogel, Physics of Massive Neutrinos (Cambridge Univ. Press, Cambridge, 1987).
R. E. Shrock, Phys. Rev. D 24, 1275 (1981).
P. C. de Holanda and A. Yu. Smirnov, hep-ph/0211264.
P. Vogel, Phys. Rev. D 30, 1505 (1984).
L. Oberauer, F. Von Feilitzsch, and R. L. Mossbauer, Phys. Lett. B 198, 113 (1987).
V. I. Kopeikin, L. A. Mikaelyan, and S. A. Fayans, Pis’ma Zh. Éksp. Teor. Fiz. 51(2), 75 (1990) [JETP Lett. 51, 86 (1990)].
A. V. Derbin, A. V. Chernyi, L. A. Popeko, et al., Pis’ma Zh. Éksp. Teor. Fiz. 57, 755 (1993) [JETP Lett. 57, 768 (1993)].
C. Hagner, M. Altman, F. von Feilitzsch, et al., Phys. Rev. D 52, 1343 (1995).
D. E. Groom et al. (Particle Data Group), Eur. Phys. J. C 15, 1 (2000); K. Hagiwara, K. Hikasa, K. Nakamura, et al., Phys. Rev. D 66, 010001 (2002).
D. Toussaint and F. Wilczek, Nature 289, 777 (1981).
L. Oberauer, C. Hagner, G. Raffelt, and E. Rieger, Astropart. Phys. 1, 377 (1993).
A. D. Dolgov, S. H. Hansen, G. Raffelt, and D. V. Semikoz, Nucl. Phys. B 580, 331 (2000).
A. D. Dolgov, Phys. Rep. 370, 333 (2002).
G. G. Raffelt, hep-ph/0208024.
G. Alimonti et al. (Borexino Collab.), Astropart. Phys. 18, 1 (2002).
H. O. Back et al. (Borexino Collab.), Phys. Lett. B 525, 29 (2002).
G. Ranucci et al., Nucl. Instrum. Methods Phys. Res. A 333, 553 (1993).
H. O. Back et al. (Borexino Collab.), Phys. Lett. B 563, 35 (2003).
G. Alimonti et al. (Borexino Collab.), Nucl. Instrum. Methods Phys. Res. A 406, 411 (1998).
G. Alimonti et al. (Borexino Collab.), Phys. Lett. B 422, 349 (1998).
G. Alimonti et al. (Borexino Collab.), Astropart. Phys. 8, 141 (1998).
G. Alimonti et al. (Borexino Collab.), Nucl. Instrum. Methods Phys. Res. A 440, 360 (2000).
J. B. Birks, Proc. Phys. Soc. London, Sect. A 64, 874 (1951).
J. M. Los Arcos and F. Ortiz, Comput. Phys. Commun. 103, 83 (1997).
O. Ju. Smirnov, Instrum. Exp. Tech. 46, 327 (2003).
H. O. Back et al. (Borexino Collab.), Phys. Lett. B 563, 35 (2003).
J. N. Bahcall, H. Pinsonneault, and S. Basu, Astrophys. J. 555, 990 (2001).
W. R. Nelson, H. Hirayama, and D. W. O. Rogers, The EGS4 Code System (1985), SLAC-265.
D. A. Bryman et al., Phys. Rev. Lett. 50, 1546 (1983).
Author information
Authors and Affiliations
Corresponding authors
Additional information
From Pis’ma v Zhurnal Éksperimental’no\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l} \) i Teoretichesko\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l} \) Fiziki, Vol. 78, No. 5, 2003, pp. 707–712.
Original English Text Copyright © 2003 by Back, Belata, Bari, Beau, Bellefon, Bellini, Benziger, Bonetti, Buck, Caccianiga, Cadonati, Calaprice, Cecchet, Chen, Credico, Dadoun, D’Angelo, Derbin, Deutsch, Elisei, Etenko, Feilitzsch, Fernholz, Ford, Franco, Freudiger, Galbiati, Gatti, Gazzana, Giammarchi, Giugni, Goeger-Neff, Goretti, Grieb, Hagner, Harding, Hartmann, Heusser, A. Ianni, A. M. Ianni, Kerret, Kiko, Kirsten, Kobychev, Korga, Korschinek, Kozlov, Kryn, Lamblin, Laubenstein, Lendvai, Litvinovich, Lombardi, Machulin, Malvezzi, Maneira, Manno, D. Manuzio, G. Manuzio, Masetti, Martemianov, Mazzucato, McCarty, Meroni, Miramonti, Monzani, Muratova, Musico, Niedermeier, Oberauer, Obolensky, Ortica, Pallavicini, Papp, Perasso, Pocar, Raghavan, Ranucci, Razeto, Sabelnikov, Salvo, Scardaoni, Schimizzi, Schoenert, Simgen, Shutt, Skorokhvatov, Smirnov, Sonnenschein, Sotnikov, Sukhotin, Tarasenkov, Tartaglia, Testera, Vignaud, Vogelaar, Vyrodov, Wojcik, Zaimidoroga, Zuzel.
This article was submitted by the authors in English.
Deceased.
GLIMOS.
Marie Curie fellowship at LNGS.
Rights and permissions
About this article
Cite this article
Back, H.O., Belata, M., de Bari, A. et al. New experimental limits on heavy neutrino mixing in 8B-decay obtained with the Borexino counting test facility. Jetp Lett. 78, 261–266 (2003). https://doi.org/10.1134/1.1625721
Received:
Issue Date:
DOI: https://doi.org/10.1134/1.1625721