Mitigation of $$^{42}$$42Ar/$$^{42}$$42K background for the GERDA Phase II experiment

  title={Mitigation of \$\$^\{42\}\$\$42Ar/\$\$^\{42\}\$\$42K background for the GERDA Phase II experiment},
  author={A. Lubashevskiy and Matteo Agostini and Du{\vs}an Budj{\'a}{\vs} and Albert Gangapshev and K. Gusev and Mark Heisel and A. A. Klimenko and Antonio Di Lazzaro and Bjoern Lehnert and Krzysztof Pelczar and Stefan Sch{\"o}nert and Anatoly A. Smolnikov and Marc Walter and Grzegorz Zuzel},
  journal={The European Physical Journal C},
Background coming from the $$^{42}$$42Ar decay chain is considered to be one of the most relevant for the Gerda experiment, which searches for the neutrinoless double beta decay of $$^{76}$$76Ge. The sensitivity strongly relies on the absence of background around the Q-value of the decay. Background coming from $$^{42}$$42K, a progeny of $$^{42}$$42Ar, can contribute to that background via electrons from the continuous spectrum with an endpoint at 3.5 MeV. Research and development on the… 

Virtual depth by active background suppression: revisiting the cosmic muon induced background of Gerda Phase II

In-situ production of radioisotopes by cosmic muon interactions may generate a non-negligible background for deep underground rare event searches. Previous Monte Carlo studies for the Gerda

Upgrade for Phase II of the Gerda experiment

The Gerda collaboration is performing a sensitive search for neutrinoless double beta decay of $$^{76}\hbox {Ge}$$76Ge at the INFN Laboratori Nazionali del Gran Sasso, Italy. The upgrade of the Gerda

Final Results of GERDA on the Search for Neutrinoless Double-β Decay.

The GERmanium Detector Array (GERDA) experiment searched for the lepton-number-violating neutrinoless double-β (0νββ) decay of ^{76}Ge, whose discovery would have far-reaching implications in

GERDA: Final Results and Physics Beyond Neutrinoless Double-Beta Decay

  • P. Krause
  • Physics
    Journal of Physics: Conference Series
  • 2021
The GERDA experiment searched for the lepton number violating neutrinoless double-beta 0υββ decay of 76 Ge. Observation of this decay would provide answers to fundamental problems in particle physics

Search for exotic physics in double-$\beta$ decays with GERDA Phase II

. A search for Beyond the Standard Model double- β decay modes of 76 Ge has been performed with data collected during the Phase II of the GERmanium Detector Array ( Gerda ) experiment, located at

Modeling of GERDA Phase II data

The GERmanium Detector Array (Gerda) experiment at the Gran Sasso underground laboratory (LNGS) of INFN is searching for neutrinoless double-beta (0 νββ ) decay of 76 Ge. The technological challenge

Probing Majorana neutrinos with double-β decay

A germanium detector–based experiment places improved boundaries on the half-life of an exotic nuclear decay, which would make possible the neutrinoless double-β (0νββ) decay, a matter-creating process without the balancing emission of antimatter.

P o S ( H Q L 2 0 1 8 ) 0 5 6 Search for neutrinoless double beta decay with G ERDA Phase II

The GERDA Collaboration is searching for neutrinoless double beta (0νββ ) decay of the candidate isotope 76Ge operating bare germanium detectors enriched in 76Ge to about 88% in liquid argon (LAr).

Fabrication and characterization of high-purity germanium detectors with amorphous germanium contacts

Large, high-purity, germanium (HPGe) detectors are needed for neutrinoless double-beta decay and dark matter experiments. Currently, large (> 4 inches in diameter) HPGe crystals can be grown at the



LArGe: active background suppression using argon scintillation for the Gerda$$0\nu \beta \beta $$0νββ-experiment

LArGe is a Gerda low-background test facility to study novel background suppression methods in a low-background environment, for future application in the Gerda experiment. Similar to Gerda, LArGe

Background-free search for neutrinoless double-β decay of 76Ge with GERDA

The potential of an essentially background-free search for neutrinoless double-β decay will facilitate a larger germanium experiment with sensitivity levels that will bring us closer to clarifying whether neutrinos are their own antiparticles.

Pulse shape discrimination studies with a Broad-Energy Germanium detector for signal identification and background suppression in the GERDA double beta decay experiment

First studies of event discrimination with a Broad-Energy Germanium (BEGe) detector are presented. A novel pulse shape method, exploiting the characteristic electrical field distribution inside BEGe

MaGe-a Geant4-Based Monte Carlo Application Framework for Low-Background Germanium Experiments

We describe a physics simulation software framework, MaGe, that is based on the Geant4 simulation toolkit. MaGe is used to simulate the response of ultra-low radioactive background detectors to

ICP MS selection of radiopure materials for the GERDA experiment

The GERDA (GERmanium Detector Array) experiment, located in the Gran Sasso Underground Laboratory (LNGS, Italy) aims to search for neutrinoless double beta (0νββ) decay of the 76Ge isotope. Both an

Low background techniques and experimental challenges for Borexino and its nylon vessels

Neutrino physics has seen exciting developments over the past five years, following the experimental evidence of their oscillations in the atmospheric and solar sectors; precise measurements of

The Borexino solar neutrino experiment and its scintillator containment vessel

Thirty years ago, the rst solar neutrino detector proved fusion reactions power the Sun. However, the total rate detected in this and all subsequent solar neutrino experiments is consistently two to

A Liquid-Argon Ionization Detector for the Study of Double β Decay

A multisection liquid-argon ionization detector has been developed by the DBA collaboration to study double β decay of 100Mo. The experiment has been carried out in the Gran Sasso underground