Recent Results of the COBRA Experiment
- NázevTitle
- Recent Results of the COBRA ExperimentRecent Results of the COBRA Experiment
- Druh výsledkuResult type
- Příspěvek ve sborníkuProceedings paper
- AutořiAuthors
- Y. Chu, C. Gößling, R. Hodák, K. Kröninger, M. Macko, M. Petro, E. Medunová, I. Štekl
- DOIDOI
- 10.1063/5.0235663
- Časopis / citaceJournal / citation
- In: Workshop on Calculation of Double-Beta-Decay Matrix Elements (MEDEX´22). New York: AIP Conference Proceedings, 2025. p. 020024-1-020024-4. vol. 3143. ISSN 1551-7616. ISBN 978-0-7354-5106-3.
- JazykLanguage
- eng
- WoSWoS
- 001598466300013
- ScopusScopus
- 2-s2.0-85219109217
- RIVRIV
- RIV/68407700:21670/25:00382689!RIV26-MSM-21670___
- ProjektProject
- Podzemní laboratoř LSM - účast České republikyLaboratoire Souterrain de Modane – participation of the Czech Republic
AbstraktAbstract
The CdZnTe 0ν Double Beta Research Apparatus (COBRA) is a low background experiment searching for double beta (ββ) decays with CdZnTe (CZT) room temperature semiconductor detectors. The "source = detector" concept of the experiment not only allows the investigation of ββ nuclides naturally present in the detector, but also the study of other rare event processes with high inherent detection efficiency. One process investigated is the fourfold forbidden non-unique single β-decay of113Cd which is measured to evaluate the quenching effects of the axial-vector coupling strength gA, a crucial parameter for the nuclear matrix elements. The other process being focused on is the113Cd charge non-conserving (CNC) β-decay, which is another experimental effort testing the electric charge conservation for nucleons. The current status of COBRA, and the results obtained in measurements of gA quenching, as well as new searches for the CNC β-decay are presented.
The CdZnTe 0ν Double Beta Research Apparatus (COBRA) is a low background experiment searching for double beta (ββ) decays with CdZnTe (CZT) room temperature semiconductor detectors. The "source = detector" concept of the experiment not only allows the investigation of ββ nuclides naturally present in the detector, but also the study of other rare event processes with high inherent detection efficiency. One process investigated is the fourfold forbidden non-unique single β-decay of113Cd which is measured to evaluate the quenching effects of the axial-vector coupling strength gA, a crucial parameter for the nuclear matrix elements. The other process being focused on is the113Cd charge non-conserving (CNC) β-decay, which is another experimental effort testing the electric charge conservation for nucleons. The current status of COBRA, and the results obtained in measurements of gA quenching, as well as new searches for the CNC β-decay are presented.