LIQUID XENON AS A DARK-MATTER DETECTOR - PROSPECTS FOR NUCLEAR RECOIL DISCRIMINATION BY PHOTON TIMING

被引：45

作者：

DAVIES, GJ

DAVIES, JD

LEWIN, JD

SMITH, PF

JONES, WG

机构：

[1] UNIV LONDON IMPERIAL COLL SCI & TECHNOL, BLACKETT LAB, LONDON SW7 2BZ, ENGLAND

[2] RUTHERFORD APPLETON LAB, DEPT PARTICLE PHYS, CHILTON OX11 0SU, OXON, ENGLAND

来源：

PHYSICS LETTERS B | 1994年 / 320卷 / 3-4期

关键词：

D O I：

10.1016/0370-2693(94)90676-9

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Two mechanisms lead to liquid xenon scintillation, and are excited differently by incident electrons and by heavy charged nuclei. This could be used to discriminate nuclear recoil events from radioactive background in a search for hypothetical Galactic dark matter particles. To achieve low energy threshold a likelihood analysis is proposed using the time intervals between detected photons. Results are presented of Monte Carlo simulations, showing the background rejection achievable as a function of the number of detected photons. Some comments are included on background discrimination by simultaneous measurement of scintillation and ionization signals.

引用

页码：395 / 399

页数：5

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