Deep-underground dark matter search with a COSINUS detector prototype

被引：3

作者：

Angloher, G. ^{[1
]}

Bharadwaj, M. R. ^{[1
]}

Dafinei, I. ^{[2
,3
]}

Di Marco, N. ^{[2
,4
]}

Einfalt, L. ^{[5
,6
]}

Ferroni, F. ^{[2
,3
]}

Fichtinger, S. ^{[5
]}

Filipponi, A. ^{[4
,7
]}

Frank, T. ^{[1
]}

Friedl, M.

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

Ge, Z. ^{[8
]}

Heikinheimo, M. ^{[9
]}

Hughes, M. N. ^{[1
]}

Huitu, K. ^{[9
]}

Kellermann, M. ^{[1
]}

Maji, R. ^{[5
,6
]}

Mancuso, M. ^{[1
]}

Pagnanini, L. ^{[2
,4
]}

Petricca, F. ^{[1
]}

Pirro, S. ^{[4
]}

Proebst, F. ^{[1
]}

Profeta, G. ^{[4
,7
]}

Puiu, A. ^{[2
,4
]}

Reindl, F. ^{[5
,6
]}

Schaeffner, K. ^{[1
]}

Schieck, J. ^{[5
,6
]}

Schmiedmayer, D. ^{[5
,6
]}

Schwertner, C. ^{[5
,6
]}

Shera, K. ^{[1
]}

Stahlberg, M. ^{[1
]}

Stendahl, A. ^{[9
]}

Stukel, M. ^{[2
,4
]}

Tresca, C. ^{[4
,10
]}

Wagner, F. ^{[5
]}

Yue, S. ^{[8
]}

Zema, V. ^{[1
]}

Zhu, Y.

机构：

[1] Max Planck Inst Phys & Astrophys, D-85748 Garching, Germany

[2] Gran Sasso Sci Inst, I-67100 Laquila, Italy

[3] Ist Nazl Fis Nucl, Sez Roma, I-00185 Rome, Italy

[4] Ist Nazl Fis Nucl, Lab Nazl Gran Sasso, I-67010 Assergi, Italy

[5] Austrian Acad Sci, Inst Hochenergiephys, A-1050 Vienna, Austria

[6] Tech Univ Wien, Atominst, A-1020 Vienna, Austria

[7] Univ dellAquila, Dipartimento Sci Fis & Chim, I-67100 Laquila, Italy

[8] SICCAS Shanghai Inst Ceram, Shanghai 201899, Peoples R China

[9] Univ Helsinki, Helsinki Inst Phys, Helsinki 00014, Finland

[10] Univ dellAquila, Dipartimento Sci Fis & Chim, CNR SPIN, I-67100 Laquila, Italy

来源：

PHYSICAL REVIEW D | 2024年 / 110卷 / 04期

基金：

奥地利科学基金会;

关键词：

D O I：

10.1103/PhysRevD.110.043010

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Sodium iodide (NaI)-based cryogenic scintillating calorimeters using quantum sensors for signal readout have shown promising first results toward a model-independent test of the annually modulating signal detected by the DAMA/LIBRA dark matter experiment. The COSINUS Collaboration has previously reported on the first above-ground measurements using a dual-channel readout of phonons and light based on transition edge sensors (TESs) that allows for particle discrimination on an event-by-event basis. In this article, we outline the first underground measurement of a NaI cryogenic calorimeter readout via the novel remoTES scheme. A 3.67 g NaI absorber with an improved silicon light detector design was operated at the Laboratori Nazionali del Gran Sasso, Italy. A significant improvement in the discrimination power of e-/gamma events to nuclear recoils was observed with a fivefold improvement in the nuclear recoil baseline resolution, achieving 6 1/4 441 eV. Furthermore, we present a limit on the spin-independent dark matter nucleon elastic scattering cross section, achieving a sensitivity of O(pb) with an exposure of only 11.6 g d.

引用

页数：10

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