Probing the absolute neutrino mass scale with 163Ho: The HOLMES project

被引：1

作者：

De Gerone, M. ^{[1
]}

Alpert, B. ^{[2
]}

Becker, D. ^{[2
]}

Bennett, D. ^{[2
]}

Biasotti, M. ^{[1
,3
]}

Ceriale, V ^{[1
,3
]}

Dressler, R. ^{[4
]}

Faverzani, M. ^{[5
,6
]}

Ferri, E. ^{[5
]}

Fowler, J. ^{[2
]}

Gallucci, G. ^{[1
]}

Gard, J. ^{[2
]}

Gatti, F. ^{[1
,3
]}

Giachero, A. ^{[5
,6
]}

J-Hays-Wehle ^{[2
,5
]}

Heinitz, S. ^{[4
]}

Hilton, G. ^{[2
]}

Koester, U. ^{[7
]}

Lusignoli, M. ^{[8
,9
]}

Mates, J. ^{[2
]}

Nucciotti, A. ^{[5
,6
]}

Nisi, S. ^{[10
]}

Orlando, A. ^{[5
]}

Pessina, G. ^{[5
]}

Puiu, A. ^{[5
,6
]}

Ragazzi, S. ^{[5
]}

Reintsema, C. ^{[2
]}

Ribeiro Gomes, M. ^{[11
]}

Schmidt, D. ^{[2
]}

Schumann, D. ^{[4
]}

Swetz, D. ^{[2
]}

Ullom, J. ^{[2
]}

Vale, L. ^{[2
]}

机构：

[1] Ist Nazl Fis Nucl, Sez Genova, Genoa, Italy

[2] NIST, Boulder, CO USA

[3] Univ Genoa, Dipartimento Fis, Genoa, Italy

[4] Paul Scherrer Inst, Villigen, Switzerland

[5] Ist Nazl Fis Nucl, Sez Milano Bicocca, Milan, Italy

[6] Univ Milano Bicocca, Dipartimento Fis, Milan, Italy

[7] Inst Laue Langevin, Grenoble, France

[8] Ist Nazl Fis Nucl, Sez Roma 1, I-1 Rome, Italy

[9] Univ Roma La Sapienza, Dipartimento Fis, Rome, Italy

[10] Ist Nazl Fis Nucl, Lab Nazl Gran Sasso, Assergi, Italy

[11] Univ Lisbon, Multidisciplinary Ctr Astrophys, Lisbon, Portugal

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 2019年 / 936卷

基金：

欧洲研究理事会;

关键词：

Neutrino mass measurement; Electron capture; Holmium; Transition edge sensors;

D O I：

10.1016/j.nima.2018.10.108

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

The HOLMES project aims to directly measure the nu mass down to the eV scale using the electron capture decay (EC) of Ho-163. It will perform a precise calorimetric measurement of the end-point of the Ho energy spectrum looking for the deformation caused by a finite nu mass. The choice of Ho-163 as source is driven by the very low Q-value of the EC reaction, which allows for high sensitivity with low activities (O(10(2))Bq/detector), thus reducing the pile-up probability. A large array made by thousands of transition edge sensors based micro-calorimeters will be used. The calorimetric approach eliminates systematic uncertainties arising from the use of an external beta source, and minimizes the effect of the atomic de-excitation process. The commissioning of the first implanted sub-array is scheduled for the end of 2018. It will provide useful data about the EC decay of Ho-163 together with a first limit on nu mass.

引用

页码：252 / 253

页数：2

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