A solenoidal electron spectrometer for a precision measurement of the neutron β-asymmetry with ultracold neutrons

被引：19

作者：

Plaster, B. ^{[1
,2
]}

Carr, R. ^{[2
]}

Filippone, B. W. ^{[2
]}

Harrison, D. ^{[3
]}

Hsiao, J. ^{[2
]}

Ito, T. M. ^{[2
,4
]}

Liu, J. ^{[2
]}

Martin, J. W. ^{[2
,3
]}

Tipton, B. ^{[2
]}

Yuan, J. ^{[2
]}

机构：

[1] Univ Kentucky, Dept Phys & Astron, Lexington, KY 40506 USA

[2] CALTECH, WK Kellogg Radiat Lab, Pasadena, CA 91125 USA

[3] Univ Winnipeg, Dept Phys, Winnipeg, MB R3B 2E9, Canada

[4] Los Alamos Natl Lab, Los Alamos, NM 87545 USA

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 2008年 / 595卷 / 03期

基金：

加拿大自然科学与工程研究理事会; 美国国家科学基金会;

关键词：

Neutron beta-decay; Low-energy electron magnetic spectrometer; Ultracold neutrons;

D O I：

10.1016/j.nima.2008.07.143

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

We describe an electron spectrometer designed for a precision measurement of the neutron beta-asymmetry with spin-polarized ultracold neutrons. The spectrometer consists of a 1.0-T solenoidal Held with two identical multiwire proportional chamber and plastic scintillator electron detector packages situated within 0.6-T field-expansion regions, Select results from performance studies of the spectrometer with calibration sources are reported. (C) 2008 Elsevier B.V. All rights reserved.

引用

页码：587 / 598

页数：12

共 24 条

[1] Quark mixing, CKM unitarity -: The unitarity problem [J].

Abele, H ;

Barberio, E ;

Dubbers, D ;

Glück, F ;

Hardy, JC ;

Marciano, WJ ;

Serebrov, A ;

Severijns, N .

EUROPEAN PHYSICAL JOURNAL C, 2004, 33 (01) :1-8

[2] Is the unitarity of the quark-mixing CKM matrix violated in neutron β-decay? -: art. no. 211801 [J].

Abele, H ;

Hoffmann, MA ;

Baessler, S ;

Dubbers, D ;

Glück, F ;

Müller, U ;

Nesvizhevsky, V ;

Reich, J ;

Zimmer, O .

PHYSICAL REVIEW LETTERS, 2002, 88 (21) :4

[3] The neutron. Its properties and basic interactions [J].

Abele, Hartmut .

PROGRESS IN PARTICLE AND NUCLEAR PHYSICS, VOL 60, NO 1, 2008, 60 (01) :1-81

[4] Precision measurements and CKM unitarity [J].

Czarnecki, A ;

Marciano, WJ ;

Sirlin, A .

PHYSICAL REVIEW D, 2004, 70 (09)

[5] Sharpening low-energy, standard-model tests via correlation coefficients in neutron β decay [J].

Gardner, S ;

Zhang, C .

PHYSICAL REVIEW LETTERS, 2001, 86 (25) :5666-5669

[6] Superallowed 0+→0+ nuclear β decays:: A critical survey with tests of the conserved vector current hypothesis and the standard model -: art. no. 055501 [J].

Hardy, JC ;

Towner, IS .

PHYSICAL REVIEW C, 2005, 71 (05)

[7] New limits on fundamental weak-interaction parameters from superallowed β decay -: art. no. 092502 [J].

Hardy, JC ;

Towner, IS .

PHYSICAL REVIEW LETTERS, 2005, 94 (09)

[8] A multiwire proportional chamber for precision studies of neutron β decay angular correlations [J].

Ito, T. M. ;

Carr, R. ;

Filippone, B. W. ;

Martin, J. W. ;

Plaster, B. ;

Rybka, G. ;

Yuan, J. .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2007, 571 (03) :676-686

[9] POSSIBLE TESTS OF TIME REVERSAL INVARIANCE IN BETA DECAY [J].

JACKSON, JD ;

TREIMAN, SB ;

WYLD, HW .

PHYSICAL REVIEW, 1957, 106 (03) :517-521

[10]

JACKSON JD, 1999, CLASSICAL ELECTRODYN, P592

← 1 2 3 →