α activity of natural tungsten isotopes -: art. no. 014310

被引：102

作者：

Danevich, FA

Georgadze, AS

Kobychev, VV

Nagorny, SS

Nikolaiko, AS

Ponkratenko, OA

Tretyak, VI

Zdesenko, SY

Zdesenko, YG

Bizzeti, PG

Fazzini, TF

Maurenzig, PR

机构：

[1] Ukrainian Acad Sci, Inst Nucl Res, UA-03680 Kiev, Ukraine

[2] Univ Florence, Dipartimento Fis, I-50019 Florence, Italy

[3] Ist Nazl Fis Nucl, I-50019 Florence, Italy

来源：

PHYSICAL REVIEW C | 2003年 / 67卷 / 01期

关键词：

D O I：

10.1103/PhysRevC.67.014310

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

The indication for the alpha decay of W-180 with a half-life T-1/2(alpha)=1.1(-0.4)(+0.8)(stat)+/-0.3(syst)x10(18) yr has been observed for the first time with the help of the superlow background (CdWO4)-Cd-116 crystal scintillators. In a conservative approach the lower limit on half-life of W-180 has been established as T-1/2(alpha)(W-180)greater than or equal to0.7x10(18) yr at 90% C.L. In addition, new T-1/2(alpha) bounds were set for alpha decay of W-182, W-183, W-184, and W-186 at the level of 10(20) yr.

引用

页码：143101 / 143108

页数：8

共 40 条

[1] REDUCED ALPHA-WIDTHS FOR NUCLEI WITH N-GREATER-THAN-OR-EQUAL-TO-84,Z-LESS-THAN-OR-EQUAL-TO-84 [J].

ALBATAINA, B ;

JANECKE, J .

PHYSICAL REVIEW C, 1988, 37 (04) :1667-1671

[2] BOLOMETRIC MEASUREMENT OF THE BETA-SPECTRUM OF CD-113 [J].

ALESSANDRELLO, A ;

BROFFERIO, C ;

CAMIN, DV ;

CREMONESI, O ;

DANEVICH, FA ;

DEMARCILLAC, P ;

FIORINI, E ;

GIULIANI, A ;

KOUTS, VN ;

NIKOLAYKO, AS ;

PAVAN, M ;

PESSINA, G ;

PREVITALI, E ;

VIGNOLI, C ;

ZANOTTI, L ;

ZDESENKO, YG .

NUCLEAR PHYSICS B, 1994, :394-396

[3] LARGE CALORIMETRIC DEVICES FOR DOUBLE BETA-DECAY AND DARK-MATTER [J].

ALESSANDRELLO, A ;

BROFFERIO, C ;

CAMIN, DV ;

CATTADORI, C ;

CREMONESI, O ;

FIORINI, E ;

GIULIANI, A ;

PAVAN, M ;

PESSINA, G ;

PREVITALI, E ;

ZANOTTI, L .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 1994, 344 (01) :243-249

[4]

[Anonymous], 1967, THEORY PRACTICE SCIN

[5] The 1995 update to the atomic mass evaluation [J].

Audi, G ;

Wapstra, AH .

NUCLEAR PHYSICS A, 1995, 595 (04) :409-480

[6] Analysis of alpha-emitting isotopes in an inorganic scintillator [J].

Barton, JC ;

Edgington, JA .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2000, 443 (2-3) :277-286

[7] SEARCH FOR THE NATURAL ALPHA ACTIVITY OF TUNGSTEN [J].

BEARD, GB ;

KELLY, WH .

NUCLEAR PHYSICS, 1960, 16 (04) :591-596

[8] New results of 116Cd ββ decay experiment [J].

Bizzeti, PG ;

Danevich, FA ;

Fazzini, TF ;

Georgadze, AS ;

Kobychev, VV ;

Maurenzig, PR ;

Nagorny, SS ;

Nikolaiko, AS ;

Ponkratenko, OA ;

Tretyak, VI ;

Zdesenko, SY ;

Zdesenko, YG .

NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS, 2002, 110 :389-391

[9]

BIZZETI PG, 2002, B RUSS ACAD SCI P, V66, P630

[10] SIMPLE RELATION FOR ALPHA-DECAY HALF-LIVES [J].

BROWN, BA .

PHYSICAL REVIEW C, 1992, 46 (02) :811-814

← 1 2 3 4 →