ZnWO4 anisotropic scintillator for Dark Matter investigation with the directionality technique

被引：11

作者：

Bernabei, R. ^{[1
,2
]}

Belli, P. ^{[2
]}

Cappella, F. ^{[3
]}

Caracciolo, V. ^{[3
]}

Cerulli, R. ^{[3
]}

Danevich, F. A. ^{[4
]}

d'Angelo, A. ^{[5
]}

Di Marco, A. ^{[1
]}

Incicchitti, A. ^{[5
]}

Mokina, V. M. ^{[4
,5
]}

Poda, D. V. ^{[4
,6
]}

Polischuk, O. G. ^{[4
]}

Taruggi, C. ^{[1
,3
]}

Tretyak, V. I. ^{[4
,5
]}

机构：

[1] Univ Roma Tor Vergata, Dip Fis, I-00133 Rome, Italy

[2] Ist Nazl Fis Nucl, Sez Roma Tor Vergata, I-00133 Rome, Italy

[3] Ist Nazl Fis Nucl, Lab Nazl Gran Sasso, I-67100 Assergi, AQ, Italy

[4] Inst Nucl Res, MSP, UA-06380 Kiev, Ukraine

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

[6] Univ Paris Saclay, Univ Paris Sud, CSNSM, CNRS,IN2P3, F-91405 Orsay, France

来源：

RICAP16, 6TH ROMA INTERNATIONAL CONFERENCE ON ASTROPARTICLE PHYSICS | 2017年 / 136卷

关键词：

MODEL-INDEPENDENT RESULT; CRYSTAL SCINTILLATORS; SEARCH; DECAY; DETECTORS;

D O I：

10.1051/epjconf/201713605002

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The ZnWO4 crystal scintillator has unique features that make it very promising to realize a pioneering experiment to pursue Dark Matter investigation with the directionality technique. In particular in this detector the light output and the scintillation pulse shape for heavy particles (p, alpha, nuclear recoils) depend on the direction of the impinging particle with respect to the crystal axes, while the response to gamma/beta radiation is isotropic. The anisotropy of the light output can be considered to point out the presence in the diurnal counting rate of a Dark Matter signal produced by candidate particle inducing just nuclear recoils. In addition this crystal detector has also other important characteristics for a Dark Matter experiment: high light output, high level of radiopurity. In this paper the present performances of the developed ZnWO4 crystal scintillator will be summarized together with the possible future improvements. Some reachable sensitivities - under given assumptions - in the investigation of DM candidate particles with the directionality technique will also be addressed.

引用

页数：5

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