CINECA IRIS Institutional Research Information System
IRIS è la soluzione IT che facilita la raccolta e la gestione dei dati relativi alle attività e ai prodotti della ricerca. Fornisce a ricercatori, amministratori e valutatori gli strumenti per monitorare i risultati della ricerca, aumentarne la visibilità e allocare in modo efficace le risorse disponibili.
EnglishWe propose to exploit the angular distribution of the positrons emitted in the reaction <(nu)over bar>(e) + p --> n + e(+) to extract a possible antineutrino signal from the Superkamiokande background. From the statistics collected in just 101.9 days one obtains a model independent upper bound on the antineutrino flux Phi(nu)- (E(nu)-> 8.3 MeV) < 9 . 10(4) cm(-2) s(-1) at the 95% C.L. By assuming the same energy spectrum as for the (8)B neutrinos, the 95% C.L. bound is Phi(nu)- (E(nu)-> 8.3 MeV) < 6 . 10(4) cm(-2) s(-1). Within three years of data taking, the sensitivity to nu(e) --> <(nu)over bar>(e) transition probability will reach the 1% level, thus providing a stringent test of hybrid oscillation models. (C) 1997 Elsevier Science B.V.
| Titolo: | Superkamiokande and solar antineutrinos | |
| Autori: | ||
| Data di pubblicazione: | 1997 | |
| Rivista: | ||
| Abstract: | We propose to exploit the angular distribution of the positrons emitted in the reaction <(nu)over bar>(e) + p --> n + e(+) to extract a possible antineutrino signal from the Superkamiokande background. From the statistics collected in just 101.9 days one obtains a model independent upper bound on the antineutrino flux Phi(nu)- (E(nu)-> 8.3 MeV) < 9 . 10(4) cm(-2) s(-1) at the 95% C.L. By assuming the same energy spectrum as for the (8)B neutrinos, the 95% C.L. bound is Phi(nu)- (E(nu)-> 8.3 MeV) < 6 . 10(4) cm(-2) s(-1). Within three years of data taking, the sensitivity to nu(e) --> <(nu)over bar>(e) transition probability will reach the 1% level, thus providing a stringent test of hybrid oscillation models. (C) 1997 Elsevier Science B.V. | |
| Handle: | http://hdl.handle.net/11697/8819 | |
| Appare nelle tipologie: | 1.1 Articolo in rivista |
File in questo prodotto:
http://hdl.handle.net/11697/8819
Copyright © 2022