If heavy neutrinos with mass mvH >or= 2me are emitted in the decays of 8B in the Sun, then sub H/ rArr nu L + 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 of a massive neutrino in the range of 1.1 MeV to 12 MeV have been derived (|UeH|2 <or= 10-3-10-5). The obtained limits on the mixing parameter are stronger than obtained in previous experiments using nuclear reactors and accelerators
This thesis details the search for mixing between electron neutrinos and possible heavy neutrinos us...
We analyzed the spectrum of the Re-187 beta decay, obtained with a cryogenic microcalorimeter, searc...
No evidence for neutrino oscillations is seen in our experiment which observed neutrinos from muon-d...
If heavy neutrinos with mass mH 2me are emitted in the decays of 8B in the Sun, then H L + e+ + e- d...
If heavy neutrinos with mass mH 2me are emitted in the decays of 8B in the Sun, then H L + e+ + e- d...
If heavy neutrinos with mass m(nu H)greater than or equal to2m(e) are emitted in the decays of B-8 i...
If heavy neutrinos with mass m(nu H)greater than or equal to2m(e) are emitted in the decays of B-8 i...
If heavy neutrinos with mass m\u3bdH 652me are produced in the Sun via the decay 8B\u21928Be+e++\u3b...
If heavy neutrinos with mass m(vH) >= 2m(e) are produced in the Sun via the decay B-8 -> Be-8 + e(+)...
If heavy neutrinos with mass mνH≥2me are produced in the Sun via the decay 8B→8Be+e++νH in a side br...
If heavy neutrinos with mass mνH≥2me are produced in the Sun via the decay 8B→8Be+e++νH in a side br...
Improved upper limits of generation-mixing amplitudes /b U//sub ie/ are presented for the electron-f...
New limits on lepton mixing parameters are derived from a search for decays of heavy neutrinos in a ...
General bounds on the mixing between heavy and active neutrinos from a complete set of 28 observable...
This thesis details the search for mixing between electron neutrinos and possible heavy neutrinos us...
This thesis details the search for mixing between electron neutrinos and possible heavy neutrinos us...
We analyzed the spectrum of the Re-187 beta decay, obtained with a cryogenic microcalorimeter, searc...
No evidence for neutrino oscillations is seen in our experiment which observed neutrinos from muon-d...
If heavy neutrinos with mass mH 2me are emitted in the decays of 8B in the Sun, then H L + e+ + e- d...
If heavy neutrinos with mass mH 2me are emitted in the decays of 8B in the Sun, then H L + e+ + e- d...
If heavy neutrinos with mass m(nu H)greater than or equal to2m(e) are emitted in the decays of B-8 i...
If heavy neutrinos with mass m(nu H)greater than or equal to2m(e) are emitted in the decays of B-8 i...
If heavy neutrinos with mass m\u3bdH 652me are produced in the Sun via the decay 8B\u21928Be+e++\u3b...
If heavy neutrinos with mass m(vH) >= 2m(e) are produced in the Sun via the decay B-8 -> Be-8 + e(+)...
If heavy neutrinos with mass mνH≥2me are produced in the Sun via the decay 8B→8Be+e++νH in a side br...
If heavy neutrinos with mass mνH≥2me are produced in the Sun via the decay 8B→8Be+e++νH in a side br...
Improved upper limits of generation-mixing amplitudes /b U//sub ie/ are presented for the electron-f...
New limits on lepton mixing parameters are derived from a search for decays of heavy neutrinos in a ...
General bounds on the mixing between heavy and active neutrinos from a complete set of 28 observable...
This thesis details the search for mixing between electron neutrinos and possible heavy neutrinos us...
This thesis details the search for mixing between electron neutrinos and possible heavy neutrinos us...
We analyzed the spectrum of the Re-187 beta decay, obtained with a cryogenic microcalorimeter, searc...
No evidence for neutrino oscillations is seen in our experiment which observed neutrinos from muon-d...