Publications by authors named "A Berlev"
We report on the direct search for cosmic relic neutrinos using data acquired during the first two science campaigns of the KATRIN experiment in 2019. Beta-decay electrons from a high-purity molecular tritium gas source are analyzed by a high-resolution MAC-E filter around the end point at 18.57 keV.
View Article and Find Full Text PDFWe report on the light sterile neutrino search from the first four-week science run of the KATRIN experiment in 2019. Beta-decay electrons from a high-purity gaseous molecular tritium source are analyzed by a high-resolution MAC-E filter down to 40 eV below the endpoint at 18.57 keV.
View Article and Find Full Text PDFArticle Synopsis
- * Data collection began in early 2019, and initial analyses revealed that KATRIN doubled the known limit on neutrino mass thanks to the excellent performance of its system components.
- * The laser Raman monitoring system (LARA) continuously tracks the gas composition in the experiment, providing precise measurements of tritium isotopic purity, essential for accurate neutrino mass calculations, achieving greater precision than required.