arXiv subjects

Zornitza Daraktchieva

Publications and source records attributed to Zornitza Daraktchieva.

3 recordsLinked to original sources

arXiv2009

Search for neutrinoless double beta decay with NEMO 3 experiment

NEMO 3 experiment is designed to search for neutrinoless double beta decay. It is located in the Modane Underground Laboratory (LSM) and has been taking data since February 2003. The half- lives of two neutrino beta decay have been measured for seven isotopes. No evidence of neutrinoless double beta decay has been found. The limits on both the half-lives of the neutrinoless double beta decay and the corresponding Majorana effective masses are derived

hep-ex↗

arXiv2008

MUNU final results

The MUNU detector has been designed to study antineutrino-electron elastic scattering at low energy. The central tracking detector is a 1 m3 Time Projection Chamber surrounded by an anti-Compton detector. In this paper the results from final analysis of the data recorded at 3-bar and 1-bar pressure are presented. At 3-bar a new upper limit on the neutrino magnetic moment < 9 x 10-11 (7 x 10-11) mu_B at 90 (68%) C.L. is derived. At 1-bar pressure electron tracks down to 80 keV are measured in the TPC. A 137Cs photopeak is reconstructed by measuring both the energy and direction of the Compton electrons in the TPC.

hep-ex↗

arXiv2003

The new limit for the magnetic moment of the electron antineutrino from the MUNU experiment

The MUNU experiment uses the electron antineutrino-electron elastic scattering to examine the magnetic properties of the electron antineutrino. The detector is situated at 18 m from the reactor, serving as an electron antineutrino source. Data corresponding to 66.6 days reactor-on and 16.7 days reactor-off are reported in this study .The electron recoil spectrum is obtained, using the visual scanning procedure. A new limit on the neutrino magnetic moment is derived.

hep-ex↗