Development of Holmium-163 Electron-Capture Spectroscopy with Transition-Edge Sensors

Croce, Mark P.; Rabin, Michael W.; Mocko, Veronika; Kunde, G. J.; Birnbaum, Eva R.; Bond, E. M.; Engle, Jonathan W.; Hoover, A.; Nortier, F.M.; Pollington, Anthony D.; Taylor, W. A.; Weisse-Bernstein, Nina R.; Wolfsberg, Laura E.; Hays-Wehle, J. P.; Schmidt, Daniel R.; Swetz, Daniel S.; Ullom, Joel N.; Barnhart, Todd E.; Nickles, R.J.

doi:10.1007/s10909-015-1451-2

Cited by 48 publications

(34 citation statements)

References 19 publications

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“…HOLMES is expected to start data taking in 2018, but a smaller scale experiment with a limited number of pixels will run in 2017, with the aim to collect a statistics of about 10 10 decays in a few months. Figure 32: NUMECs TES detectors (left) and the latest spectrum measured from NuMECS (right), see text (from [157]).…”

Section: Holmesmentioning

confidence: 99%

“…After testing many procedures, the best results were recently obtained by deposition of an aqueous solution on nanoporous gold on a regular gold foil, followed by annealing in dilute H 2 atmosphere at 800 • C. The microcalorimeter absorber is made by folding and pressing a small piece of the gold foil. Figure 32 shows a spectrum collected in 40 hours [157]. The 163 Ho activity is about 0.1 Bq.…”

Section: Numecsmentioning

confidence: 99%

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The Use of Low Temperature Detectors for Direct Measurements of the Mass of the Electron Neutrino

Nucciotti

2016

Advances in High Energy Physics

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Recent years have witnessed many exciting breakthroughs in neutrino physics. The detection of neutrino oscillations has proved that neutrinos are massive particles but the assessment of their absolute mass scale is still an outstanding challenge in today particle physics and cosmology. Since low temperature detectors were first proposed for neutrino physics experiments in 1984, there have been tremendous technical progresses: today this technique offers the high energy resolution and scalability required to perform competitive experiments challenging the lowest electron neutrino masses. This paper reviews the thirty-year effort aimed at realizing a calorimetric measurements with sub-eV neutrino mass sensitivity using low temperature detectors.

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Section: Holmesmentioning

confidence: 99%

Section: Numecsmentioning

confidence: 99%

The Use of Low Temperature Detectors for Direct Measurements of the Mass of the Electron Neutrino

Nucciotti

2016

Advances in High Energy Physics

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“…We consider in particular the first two planned phases of the ECHo project, ECHo-1k and ECHo-1M [94,95]. Other 163 Ho experimental projects are HOLMES [96], which has a program to investigate small neutrino masses competitive with the ECHo program, and NuMECS [97], which at least for the moment is only aiming at a precise measurement of the 163 Ho decay spectrum.…”

Section: Jhep06(2016)061mentioning

confidence: 99%

“…There is still not a good agreement among the different authors on the expected structures in the 163 Ho spectrum due to these excitations. The available data on the 163 Ho spectrum [97,114,115] are still not able to clearly resolve the controversy. An important point to mention is that the two-hole excitations in which an electron is "shaken-off" in the continuum may imply a substantial increase of the fraction of events in the endpoint region of the spectrum [112,113].…”

Section: Jhep06(2016)061mentioning

confidence: 99%

Light sterile neutrino sensitivity of 163Ho experiments

Gastaldo

Giunti

Zavanin

2016

J. High Energ. Phys.

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Abstract:We explore the sensitivity of 163 Ho electron capture experiments to neutrino masses in the standard framework of three-neutrino mixing and in the framework of 3+1 neutrino mixing with a sterile neutrino which mixes with the three standard active neutrinos, as indicated by the anomalies found in short-baseline neutrino oscillations experiments. We calculate the sensitivity to neutrino masses and mixing for different values of the energy resolution of the detectors, of the unresolved pileup fraction and of the total statistics of events, considering the expected values of these parameters in the two planned stages of the ECHo project (ECHo-1k and ECHo-1M). We show that an extension of the ECHo-1M experiment with the possibility to collect 10 16 events will be competitive with the KATRIN experiment. This statistics will allow to explore part of the 3+1 mixing parameter space indicated by the global analysis of short-baseline neutrino oscillation experiments. In order to cover all the allowed region, a statistics of about 10 17 events will be needed.

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“…To achieve these requirements a Megapixel arrays experiment is needed, where the multiplexing factor (number of multiplexed detector signals) and the read-out bandwidth play a crucial role for future developments. Currently, three experiments explore the approach of using electron capture on 163 Ho to assess the neutrino mass: ECHo [22], HOLMES [30], and NuMECS [31].…”

Section: Micro-calorimeter For Direct Neutrino Mass Measurementsmentioning

confidence: 99%

Assess the neutrino mass with micro and macro calorimeter approach

Giachero

2017

J. Phys.: Conf. Ser.

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Abstract. Thanks to oscillation experiments it is now an established fact that neutrinos are massive particles. Yet, the assessment of neutrinos absolute mass scale is still an outstanding challenge in particle physics and cosmology as oscillation experiments are sensitive only to the squared mass differences of the three neutrino mass eigenstates. The mass hierarchy is not the only missing piece in the puzzle. Theories of neutrino mass generation call into play Majorana neutrinos and there are experimental observations pointing toward the existence of sterile neutrinos in addition to the three weakly interacting ones. Three experimental approaches are currently pursued: an indirect neutrino mass determination via cosmological observables, the search for neutrinoless double β-decay, and a direct measurement based on the kinematics of single β or electron capture decays.Bolometers and calorimeters are low temperature detectors used in many applications, such as astrophysics, fast spectroscopy and particle physics. In particular, sensitive calorimeters play an important role in the neutrino mass measurement and in the search for the neutrinoless double β-decay. There has been great technical progress on low temperature detectors since they were proposed for neutrino physics experiments in 1984. This general detector paradigm can be implemented in devices as small as a micrometer for sub eV radiation or as large as 1 kg for MeV scale particles. Today this technique offers the high energy resolution and scalability required for leading edges and competitive experiments addressing the still open questions in neutrino physics.

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Development of Holmium-163 Electron-Capture Spectroscopy with Transition-Edge Sensors

Cited by 48 publications

References 19 publications

The Use of Low Temperature Detectors for Direct Measurements of the Mass of the Electron Neutrino

The Use of Low Temperature Detectors for Direct Measurements of the Mass of the Electron Neutrino

Light sterile neutrino sensitivity of 163Ho experiments

Assess the neutrino mass with micro and macro calorimeter approach

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