Explanipedia

Neutrinoless double beta decay sensitivity of the XLZD rare event observatory Open

J. Aalbers, K. Abe, Miquel Adrover, S. Ahmed Maouloud, D. S. Akerib , et al. · 2025

The XLZD collaboration is developing a two-phase xenon time projection chamber with an active mass of 60–80 t capable of probing the remaining weakly interacting massive particle-nucleon interaction parameter space down to the so-called ne…

Neutrinoless Double Beta Decay Sensitivity of the XLZD Rare Event Observatory Open

J. Aalbers, K. Abe, Miquel Adrover, S. Ahmed Maouloud, D. S. Akerib , et al. · 2024

The XLZD collaboration is developing a two-phase xenon time projection chamber with an active mass of 60 to 80 t capable of probing the remaining WIMP-nucleon interaction parameter space down to the so-called neutrino fog. In this work we …

The XLZD Design Book: Towards the Next-Generation Liquid Xenon Observatory for Dark Matter and Neutrino Physics Open

J. Aalbers, K. Abe, Miquel Adrover, S. Ahmed Maouloud, D. S. Akerib , et al. · 2024

This report describes the experimental strategy and technologies for XLZD, the next-generation xenon observatory sensitive to dark matter and neutrino physics. In the baseline design, the detector will have an active liquid xenon target of…

Cosmogenic background simulations for neutrinoless double beta decay with the DARWIN observatory at various underground sites Open

Martín F. Adrover, L. Althueser, B. Andrieu, E. Angelino, J. R. Angevaare , et al. · 2024

Xenon dual-phase time projections chambers (TPCs) have proven to be a successful technology in studying physical phenomena that require low-background conditions. With $$40\,\textrm{t}$$ of liquid xenon (LXe) in the TPC baseline design…

Erratum to: Sensitivity of the DARWIN observatory to the neutrinoless double beta decay of $$^{136}$$Xe Open

F. Agostini, S. Ahmed Maouloud, L. Althueser, F. D. Amaro, B. Antunović , et al. · 2023

We correct an overestimation of the production rate of $$^{137}$$ Xe in the DARWIN detector operated at LNGS. This formerly dominant intrinsic background source is now at a level similar to the irreducible background from solar $$^8$$ …

Cosmogenic background simulations for the DARWIN observatory at\n different underground locations Open

Martín F. Adrover, L. Althueser, B. Andrieu, E. Angelino, J. R. Angevaare , et al. · 2023

Xenon dual-phase time projections chambers (TPCs) have proven to be a\nsuccessful technology in studying physical phenomena that require\nlow-background conditions. With 40t of liquid xenon (LXe) in the TPC baseline\ndesign, DARWIN will ha…

Search for Lorentz-invariance violation with the first KATRIN data Open

M. Aker, D. Batzler, A. Beglarian, J. Behrens, A. I. Berlëv , et al. · 2023

Some extensions of the Standard Model of particle physics allow for Lorentz invariance and charge-parity-time invariance violations. In the neutrino sector strong constraints have been set by neutrino-oscillation and time-of-flight experim…

Characterization of the KATRIN cryogenic pumping section Open

C. Röttele, M. Steidl, Michael Sturm, M. Röllig, A. Marsteller , et al. · 2022

The KArlsruhe TRItium Neutrino (KATRIN) experiment aims to determine the effective anti-electron neutrino mass with a sensitivity of 0.2 eV/c2 by using the kinematics of tritium β-decay. It is crucial to have a high signal rate which is ac…

Improved eV-scale sterile-neutrino constraints from the second KATRIN measurement campaign Open

M. Aker, D. Batzler, A. Beglarian, J. Behrens, A. I. Berlëv , et al. · 2022

We present the results of the light sterile neutrino search from the second Karlsruhe Tritium Neutrino (KATRIN) measurement campaign in 2019. Approaching nominal activity, 3.76×106 tritium β-electrons are analyzed in an energy window exten…

KATRIN background due to surface radioimpurities Open

F.M. Fränkle, Anna Katharina Schaller, K. Blaum, L. Bornschein, G. Drexlin , et al. · 2022

New Constraint on the Local Relic Neutrino Background Overdensity with the First KATRIN Data Runs Open

M. Aker, D. Batzler, A. Beglarian, J. Behrens, A. I. Berlëv , et al. · 2022

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 h…

The design, construction, and commissioning of the KATRIN experiment Open

M. Aker, K. Altenmüller, J. F. Amsbaugh, M. Arenz, M. Babutzka , et al. · 2021

The KArlsruhe TRItium Neutrino (KATRIN) experiment, which aims to make a direct and model-independent determination of the absolute neutrino mass scale, is a complex experiment with many components. More than 15 years ago, we published a t…

Analysis methods for the first KATRIN neutrino-mass measurement Open

M. Aker, K. Altenmüller, A. Beglarian, J. Behrens, A. I. Berlëv , et al. · 2021

We report on the dataset, data handling, and detailed analysis techniques of the first neutrino-mass measurement by the Karlsruhe Tritium Neutrino (KATRIN) experiment, which probes the absolute neutrino-mass scale via the β-decay kinematic…

Precision measurement of the electron energy-loss function in tritium and deuterium gas for the KATRIN experiment Open

M. Aker, A. Beglarian, J. Behrens, A. I. Berlëv, U. Besserer , et al. · 2021

Bound on Active-Sterile Neutrino Mixing from the First Four-Week Science Run of KATRIN Open

M. Aker, K. Altenmüller, A. Beglarian, J. Behrens, A. I. Berlëv , et al. · 2021

We 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 d…

Neutral tritium gas reduction in the KATRIN differential pumping sections Open

A. Marsteller, B. Bornschein, L. Bornschein, G. Drexlin, F. Friedel , et al. · 2020

Solar neutrino detection sensitivity in DARWIN via electron scattering Open

J. Aalbers, F. Agostini, S. Ahmed Maouloud, M. Alfonsi, L. Althueser , et al. · 2020

Solar neutrino detection sensitivity in DARWIN via electron scattering Open

J. Aalbers, F. Agostini, S. Ahmed Maouloud, M. Alfonsi, L. Althueser , et al. · 2020

Sensitivity of the DARWIN observatory to the neutrinoless double beta decay of $$^{136}$$Xe Open

F. Agostini, S. Ahmed Maouloud, L. Althueser, F. D. Amaro, B. Antunović , et al. · 2020

Sensitivity of the DARWIN observatory to the neutrinoless double beta decay of $^{136}$Xe Open

F. Agostini, S. Ahmed Maouloud, L. Althueser, F. D. Amaro, B. Antunović , et al. · 2020

The DARWIN observatory is a proposed next-generation experiment to search for particle dark matter and for the neutrinoless double beta decay of $^{136}$Xe. Out of its 50$\,$t total natural xenon inventory, 40$\,$t will be the active targe…

High-resolution spectroscopy of gaseous $^{83m}$Kr conversion electrons with the KATRIN experiment Open

K. Altenmüller, M. Arenz, W-J Baek, M. Beck, A. Beglarian , et al. · 2020

In this work, we present the first spectroscopic measurements of conversion electrons originating fromthe decay ofmetastable gaseous $^{83m}$Kr with the Karlsruhe Tritium Neutrino (KATRIN) experiment. The obtained results represent one of …

Suppression of Penning discharges between the KATRIN spectrometers Open

M. Aker, K. Altenmüller, A. Beglarian, J. Behrens, A. I. Berlëv , et al. · 2020

The KArlsruhe TRItium Neutrino experiment (KATRIN) aims to determine the effective electron (anti)-neutrino mass with a sensitivity of 0.2eV/c$^{2}$ by precisely measuring the endpoint region of the tritium β-decay spectrum. It uses a tand…

Improved Upper Limit on the Neutrino Mass from a Direct Kinematic Method by KATRIN Open

M. Aker, K. Altenmüller, M. Arenz, M. Babutzka, John Barrett , et al. · 2019

We report on the neutrino mass measurement result from the first four-week science run of the Karlsruhe Tritium Neutrino experiment KATRIN in spring 2019. Beta-decay electrons from a high-purity gaseous molecular tritium source are energy …

Gamma-induced background in the KATRIN main spectrometer Open

K. Altenmüller, M. Arenz, Woo-Jeong Baek, M. Beck, A. Beglarian , et al. · 2019

Impact of a cryogenic baffle system on the suppression of radon-induced background in the KATRIN Pre-Spectrometer Open

S. Görhardt, J. Bonn, L. Bornschein, G. Drexlin, F. M. Fränkle , et al. · 2018

The KATRIN experiment will determine the effective electron anti-neutrino mass with a sensitivity of 200 meV/c2 at 90% CL. The energy analysis of tritium β-decay electrons will be performed by a tandem setup of electrostatic retarding spec…

Time-dependent simulation of the flow reduction of D2 and T2 in the KATRIN experiment Open

F. Friedel, C. Röttele, L. Schimpf, J. Wolf, G. Drexlin , et al. · 2018

First transmission of electrons and ions through the KATRIN beamline Open

M. Arenz, Woo-Jeong Baek, M. Beck, A. Beglarian, J. Behrens , et al. · 2018

The Karlsruhe Tritium Neutrino (KATRIN) experiment is a large-scale effort to probe the absolute neutrino mass scale with a sensitivity of 0.2 eV (90% confidence level), via a precise measurement of the endpoint spectrum of tritium β-decay…

Impact of a cryogenic baffle system on the suppression of radon-induced background in the KATRIN Pre-Spectrometer Open

S. Goerhardt, J. Bonn, L. Bornschein, G. Drexlin, F. M. Fraenkle , et al. · 2018

The KATRIN experiment will determine the effective electron anti-neutrino mass with a sensitivity of 200 meV/c$^2$ at 90% CL. The energy analysis of tritium $β$-decay electrons will be performed by a tandem setup of electrostatic retarding…

The KATRIN superconducting magnets: overview and first performance results Open

M. Arenz, Woo-Jeong Baek, M. Beck, A. Beglarian, J. Behrens , et al. · 2018

The KATRIN experiment aims for the determination of the effective electron anti-neutrino mass from the tritium beta-decay with an unprecedented sub-eV sensitivity. The strong magnetic fields, designed for up to 6~T, adiabatically guide β-e…

Time dependent simulation of the flow reduction of D$_2$ and T$_2$ in the KATRIN experiment Open

F. Friedel, C. Röttele, L. Schimpf, G. Drexlin, M. Hackenjos , et al. · 2018

The KArlsruhe TRItium Neutrino experiment (KATRIN) aims to measure the effective electron anti-neutrino mass with an unprecedented sensitivity of 0.2 eV/c$^2$, using beta-electrons from tritium decay. Super-conducting magnets will guide th…

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