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1.
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The Electron Capture in $^{163}$Ho Experiment - a Short Update
/ Kovac, Neven (Kirchhoff Inst. Phys.) ; Ahrens, Felix (Kirchhoff Inst. Phys.) ; Barth, Arnulf (Kirchhoff Inst. Phys.) ; Berndt, Sebastian (Mainz U. ; Mainz U., Inst. Phys.) ; Blaum, Klaus (Heidelberg, Max Planck Inst.) ; Brass, Martin (U. Heidelberg, ITP) ; Bruer, Erik (Kirchhoff Inst. Phys.) ; Door, Menno (Heidelberg, Max Planck Inst.) ; Dorrer, Holger (Mainz U.) ; Düllmann, Christoph (Mainz U.) et al.
The definition of the absolute neutrino mass scale is one of the main goals of the Particle Physics today.
The study of the end-point regions of the $\beta$- and electron capture (EC) spectrum offers a possibility to determine the effective electron (anti-)neutrino mass in a completely model independent way, as it only relies on the energy and momentum conservation. [...]
2022 - 4 p.
- Published in : PoS EPS-HEP2021 (2022) 211
Fulltext: PDF;
In : European Physics Society conference on High Energy Physics 2021, Online, Online, 26 - 30 Jul 2021, pp.211
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2.
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High-resolution and low-background $^{163}$Ho spectrum: interpretation of the resonance tails
/ Velte, C (Kirchhoff Inst. Phys.) ; Ahrens, F (Kirchhoff Inst. Phys.) ; Barth, A (Kirchhoff Inst. Phys.) ; Blaum, K (Heidelberg, Max Planck Inst.) ; Braß, M (U. Heidelberg, ITP) ; Door, M (Heidelberg, Max Planck Inst.) ; Dorrer, H (Mainz U., Inst. Kernphys.) ; Düllmann, Ch E (Mainz U., Inst. Kernphys. ; Darmstadt, GSI ; Helmholtz Inst., Mainz) ; Eliseev, S (Heidelberg, Max Planck Inst.) ; Enss, C (Kirchhoff Inst. Phys.) et al.
The determination of the effective electron neutrino mass via kinematic analysis of beta and electron capture spectra is considered to be model-independent since it relies on energy and momentum conservation. At the same time the precise description of the expected spectrum goes beyond the simple phase space term. [...]
2019 - 8 p.
- Published in : Eur. Phys. J. C 79 (2019) 1026
External link: Fulltext
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3.
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Direct decay-energy measurement as a route to the neutrino mass
/ Karthein, Jonas (CERN ; Heidelberg, Max Planck Inst.) ; Atanasov, Dinko (Dresden, Tech. U.) ; Blaum, Klaus (Heidelberg, Max Planck Inst.) ; Eliseev, Sergey (Heidelberg, Max Planck Inst.) ; Filianin, Pavel (Heidelberg, Max Planck Inst.) ; Lunney, David (CSNSM, Orsay) ; Manea, Vladimir (CERN) ; Mougeot, Maxime (CSNSM, Orsay) ; Neidherr, Dennis (Darmstadt, GSI) ; Novikov, Yuri (St. Petersburg State U. ; St. Petersburg, INP) et al.
A high-precision measurement of the $^{131}$Cs$ \rightarrow ^{131}$Xe ground-to-ground-state electron-capture $Q_{\textrm{EC}}$-value was performed using the ISOLTRAP mass spectrometer at ISOLDE/CERN. The novel PI-ICR technique allowed to reach a relative mass precision $\delta m/m$ of $1.4\cdot10^{-9}$. [...]
arXiv:1905.05510.-
2019-06-12 - 10 p.
- Published in : Hyperfine Interact. 240 (2019) 61
Fulltext: PDF;
In : 9th Symposium on Large TPCs for Low-Energy Rare Event Detection, Paris, France, 12 - 14 Dec 2018, pp.61
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4.
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Precision electron-capture energy in$^{202}$Pb and its relevance for neutrino mass determination
/ Welker, A (CERN ; Dresden, Tech. U.) ; Filianin, P (Heidelberg, Max Planck Inst. ; St. Petersburg, INP) ; Althubiti, N A S (Manchester U.) ; Atanasov, D (Heidelberg, Max Planck Inst.) ; Blaum, K (Heidelberg, Max Planck Inst.) ; Cocolios, T E (Manchester U. ; Leuven U.) ; Eliseev, S (Heidelberg, Max Planck Inst.) ; Herfurth, F (Darmstadt, GSI) ; Kreim, S (Heidelberg, Max Planck Inst.) ; Lunney, D (CSNSM, Orsay) et al.
Within the framework of an extensive programme devoted to the search for alternative candidates for the neutrino mass determination, the atomic mass difference between$^{202}$Pb and$^{202}$Tl has been measured with the Penning trap mass spectrometer ISOLTRAP at the ISOLDE facility at CERN. The obtained value $ Q_{{\rm EC}} = 38.8(43)$ keV is three times more precise than the AME2012 value. [...]
2017 - 4 p.
- Published in : Eur. Phys. J. A 53 (2017) 153
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5.
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The electron capture in $^{163}$Ho experiment – ECHo
/ Gastaldo, L (Kirchhoff Inst. Phys.) ; Blaum, K (Heidelberg, Max Planck Inst.) ; Chrysalidis, K (Mainz U., Inst. Phys.) ; Day Goodacre, T (CERN) ; Domula, A (Dresden, Tech. U.) ; Door, M (Heidelberg, Max Planck Inst.) ; Dorrer, H (Mainz U., Inst. Kernphys. ; PSI, Villigen ; Bern U.) ; Düllmann, Ch E (Mainz U., Inst. Kernphys. ; Darmstadt, GSI ; Helmholtz Inst., Mainz) ; Eberhardt, K (Mainz U., Inst. Kernphys. ; Helmholtz Inst., Mainz) ; Eliseev, S (Heidelberg, Max Planck Inst.) et al.
Neutrinos, and in particular their tiny but non-vanishing masses, can be considered one of the doors towards physics beyond the Standard Model. Precision measurements of the kinematics of weak interactions, in particular of the$^{3}$H β-decay and the$^{163}$Ho electron capture (EC), represent the only model independent approach to determine the absolute scale of neutrino masses. [...]
2017 - 72 p.
- Published in : Eur. Phys. J. Spec. Top. 226 (2017) 1623-1694
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6.
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Recent Results for the ECHo Experiment
/ Hassel, C (Kirchhoff Inst. Phys.) ; Blaum, K (Heidelberg, Max Planck Inst.) ; Goodacre, T Day (CERN) ; Dorrer, H (Mainz U., Inst. Kernphys.) ; Düllmann, Ch E (Mainz U., Inst. Kernphys.) ; Eberhardt, K (Mainz U., Inst. Kernphys.) ; Eliseev, S (Heidelberg, Max Planck Inst.) ; Enss, C (Kirchhoff Inst. Phys.) ; Filianin, P (Heidelberg, Max Planck Inst.) ; Fäßler, A (Tubingen U.) et al.
The Electron Capture in$^{163}$ Ho experiment, ECHo, is designed to investigate the electron neutrino mass in the sub-eV range by means of the analysis of the calorimetrically measured spectrum following the electron capture (EC) in$^{163}$ Ho. Arrays of low-temperature metallic magnetic calorimeters (MMCs), read-out by microwave SQUID multiplexing, will be used in this experiment. [...]
2016 - 12 p.
- Published in : J. Low Temp. Phys. 184 (2016) 910-921
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7.
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A White Paper on keV Sterile Neutrino Dark Matter
/ Drewes, M. (Munich, Tech. U.) ; Lasserre, T. (Munich, Tech. U.) ; Merle, A. (Munich, Max Planck Inst.) ; Mertens, S. (LBL, Berkeley ; KIT, Karlsruhe) ; Adhikari, R. (Jamia Millia Islamia) ; Agostini, M. (Gran Sasso) ; Ky, N.Anh (Hanoi, Inst. Phys. ; Vietnam Natl. U.) ; Araki, T. (Saitama U.) ; Archidiacono, M. (Aarhus U.) ; Bahr, M. (UC, Santa Barbara) et al.
We present a comprehensive review of keV-scale sterile neutrino Dark Matter, collecting views and insights from all disciplines involved - cosmology, astrophysics, nuclear, and particle physics - in each case viewed from both theoretical and experimental/observational perspectives. After reviewing the role of active neutrinos in particle physics, astrophysics, and cosmology, we focus on sterile neutrinos in the context of the Dark Matter puzzle. [...]
arXiv:1602.04816; FERMILAB-PUB-16-068-T.-
2017-01-13 - 239 p.
- Published in : JCAP 01 (2017) 025
Fulltext: PDF; External link: Fermilab Accepted Manuscript
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10.
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Search for $\beta$-transitions with the lowest decay energy for a determination of the neutrino mass
/ Eliseev, S (Max Planck Institute for Nuclear Physics, Germany) ; Althubiti, N (University of Manchester, Manchester, United Kingdom) ; Ascher, P (Max Planck Institute for Nuclear Physics, Germany) ; Atanasov, D (Max Planck Institute for Nuclear Physics, Germany) ; Blaum, K (Max Planck Institute for Nuclear Physics, Germany) ; Böhm, Ch (Max Planck Institute for Nuclear Physics, Germany) ; Borgmann, Ch (Uppsala University, Sweden) ; Breitenfeldt, M (Universidad Complutense, Spain; CERN) ; Cakirli, R B (Istanbul University, Department of Physics, Turkey) ; Cocolios, T E (University of Manchester, Manchester, United Kingdom) et al.
CERN-INTC-2014-038 ; INTC-P-410.
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2014.
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