V. Tarasenkov

Pulse-shape discrimination with the counting test facility

Pulse shape discrimination (PSD) is one of the most distinctive features of liquid scintillators. Since the introduction of the scintillation techniques in the field of particle detection, many studies have been carried out to characterize intrinsic properties of the most common liquid scintillator mixtures in this respect. Several application methods and algorithms able to achieve optimum discrimination performances have been developed. However, the vast majority of these studies have been performed on samples of small dimensions. The Counting Test Facility, prototype of the solar neutrino experiment Borexino, as a 4 ton spherical scintillation detector immersed in 1000 tons of shielding water, represents a unique opportunity to extend the small-sample PSD studies to a large-volume setup. Specifically, in this work we consider two different liquid scintillation mixtures employed in CTF, illustrating for both the PSD characterization results obtained either with the processing of the scintillation waveform through the optimum Gattis method, or via a more conventional approach based on the charge content of the scintillation tail. The outcomes of this study, while interesting per se, are also of paramount importance in view of the expected Borexino detector performances, where PSD will be an essential tool in the framework of the background rejection strategy needed to achieve the required sensitivity to the solar neutrino signals.

New limits on nucleon decays into invisible channels with the BOREXINO Counting Test Facility

The results of background measurements with the second version of the BOREXINO Counting Test Facility (CTF-II), installed in the Gran Sasso Underground Laboratory, were used to obtain limits on the instability of nucleons, bounded in nuclei, for decays into invisible channels (

New experimental limits on violations of the Pauli exclusion principle obtained with the Borexino Counting Test Facility

inv

CNO and pep neutrino spectroscopy in Borexino: Measurement of the deep-underground production of cosmogenic C-11 in an organic liquid scintillator

): disappearance, decays to neutrinos, etc. The approach consisted of a search for decays of unstable nuclides resulting from

On the possibility of experimentally confirming the hypothesis of reactor antineutrino passage into a sterile state

N

SEARCH FOR THE DIRAC MONOPOLE AT THE 70 GeV I.P.H.E. PROTON SYNCHROTRON.

and

New experimental limits on heavy neutrino mixing in ⁸B decay obtained with the Borexino Counting Test Facility

NN

Neutrino-4 experiment on search for sterile neutrino with multi-section model of detector

decays of parents

Creation of neutrino laboratory for carrying out experiment on search for a sterile neutrino at the SM-3 reactor

^{12}

Search for magnetic monopoles at the 70 GeV IPHE proton synchrotron

C,