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Test of Electric Charge Conservation With Borexino

M Agostini  1   2 S Appel  1 G Bellini  3 J Benziger  4 D Bick  5 G Bonfini  6 D Bravo  7 B Caccianiga  3 F Calaprice  8   2 A Caminata  9 P Cavalcante  6 A Chepurnov  10 D D'Angelo  3 S Davini  2 A Derbin  11 L Di Noto  9 I Drachnev  2 A Empl  12 A Etenko  13 K Fomenko  14 D Franco  15 F Gabriele  6 C Galbiati  3   8 C Ghiano  9 M Giammarchi  3 M Goeger-Neff  1 A Goretti  6   8 M Gromov  10   16 C Hagner  5 E Hungerford  12 Aldo Ianni  6   17 Andrea Ianni  6   8 K Jedrzejczak  18 M Kaiser  5 V Kobychev  19 D Korablev  14 G Korga  6 D Kryn  15 M Laubenstein  6 B Lehnert  20 E Litvinovich  13   21 F Lombardi  6 P Lombardi  3 L Ludhova  3 G Lukyanchenko  13 I Machulin  13   21 S Manecki  7 W Maneschg  22 S Marcocci  2 E Meroni  3 M Meyer  5 L Miramonti  3 M Misiaszek  18   6 M Montuschi  23 P Mosteiro  8 V Muratova  11 B Neumair  1 L Oberauer  1 M Obolensky  15 F Ortica  24 K Otis  25 M Pallavicini  9 L Papp  1 L Perasso  9 A Pocar  25 G Ranucci  3 A Razeto  6 A Re  3 A Romani  24 R Roncin  15   6 N Rossi  6 S Schönert  1 D Semenov  11 H Simgen  22 M Skorokhvatov  13   21 O Smirnov  14 A Sotnikov  14 S Sukhotin  13 Y Suvorov  26 R Tartaglia  6 G Testera  9 J Thurn  20 M Toropova  13 E Unzhakov  11 A Vishneva  14 R B Vogelaar  7 F von Feilitzsch  1 H Wang  26 S Weinz  27 J Winter  27 M Wojcik  18 M Wurm  27 Z Yokley  7 O Zaimidoroga  14 S Zavatarelli  9 K Zuber  20 G Zuzel  18 Borexino Collaboration
Affiliations

Test of Electric Charge Conservation With Borexino

M Agostini et al. Phys Rev Lett.

Abstract

Borexino is a liquid scintillation detector located deep underground at the Laboratori Nazionali del Gran Sasso (LNGS, Italy). Thanks to the unmatched radio purity of the scintillator, and to the well understood detector response at low energy, a new limit on the stability of the electron for decay into a neutrino and a single monoenergetic photon was obtained. This new bound, τ≥6.6×10^{28} yr at 90% C.L., is 2 orders of magnitude better than the previous limit.

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