Detection of very small neutrino masses in double-beta decay using laser tagging

被引：220

作者：

Danilov, M ^{[1
]}

DeVoe, R

Dolgolenko, A

Giannini, G

Gratta, G

Picchi, P

Piepke, A

Pietropaolo, F

Vogel, P

Vuilleumier, JL

Wang, YF

Zeldovich, O

机构：

[1] Univ Alabama, Dept Phys, Tuscaloosa, AL 35401 USA

[2] CALTECH, Dept Phys, Pasadena, CA 91125 USA

[3] IBM Corp, Almaden Res Ctr, San Jose, CA USA

[4] ITEP, Moscow, Russia

[5] Ist Nazl Fis Nucl, Lab Nazl Frascati, I-00044 Frascati, Italy

[6] CNR, Ist Cosmogeofis, I-10133 Turin, Italy

[7] Univ Turin, Dipartimento Fis, Turin, Italy

[8] Univ Neuchatel, Inst Phys, CH-2000 Neuchatel, Switzerland

[9] Ist Nazl Fis Nucl, Sezione Padova, Padua, Italy

[10] Stanford Univ, Dept Phys, Stanford, CA USA

[11] Univ Trieste, Dipartimento Fis, I-34014 Trieste, Italy

来源：

PHYSICS LETTERS B | 2000年 / 480卷 / 1-2期

关键词：

double beta decay; neutrino mass; TPC; optical tagging; ion trap;

D O I：

10.1016/S0370-2693(00)00404-4

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We describe an approach to the study of neutrino masses that combines quantum optics techniques with radiation detectors to obtain unprecedented sensitivity. With it the search for Majorana neutrino masses down to similar to 10 meV will become accessible. The experimental technique uses the possibility of individually detecting Ba+-ions in the final state of Xe-136 double-beta decay via resonant excitation with a set of lasers aimed at a specific location in a large Time Projection Chamber. The specificity of the atomic levels provides tagging and, together with more traditional event recognition parameters, greatly suppresses radioactive backgrounds. (C) 2000 Published by Elsevier Science B.V. All rights reserved.

引用

页码：12 / 18

页数：7

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