Search for radiative β-decay of the free neutron

被引：3

作者：

Byrne, J ^{[1
]}

Khafizov, RU

Mostovoi, YA

Rozhnov, O

Solovei, VA

Beck, M

Kozlov, VU

Severijns, N

机构：

[1] Univ Sussex, Dept Phys & Astron, Brighton BN1 9QH, E Sussex, England

[2] RSC Kurchatov Inst, Moscow 127562, Russia

[3] Petersburg Nucl Phys Inst, Gatchina 188350, Russia

[4] Katholieke Univ Leuven, B-3001 Louvain, Belgium

来源：

JOURNAL OF RESEARCH OF THE NATIONAL INSTITUTE OF STANDARDS AND TECHNOLOGY | 2005年 / 110卷 / 04期

关键词：

beta decay; cold neutrons; electroweak interactions; neutron decay; radiative corrections; radiative decay;

D O I：

10.6028/jres.110.063

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

Results of the first experiment to search for the radiative decay mode of the free neutron are reported. The gamma-spectrum was studied in the energy region from 35 keV to 100 keV in six Cs(T1) scintillators, each set at an angle of 35 to, and shielded from, a central plastic scintillator electron detector. Triple coincidences were recorded with recoil protons detected in a micro-channel plate. A limit for the branching ratio BR <6.9x10(-3) (90% confidence level) was obtained, which is greater that the theoretical prediction by not more than a few tenths of a percent.

引用

页码：415 / 420

页数：6

共 14 条

[1] The upper limit of the branching ratio for radiative beta decay of free neutrons [J].

Beck, M ;

Byrne, J ;

Khafizov, RU ;

Kozlov, VY ;

Mostovoi, YA ;

Rozhnov, OV ;

Severijns, N ;

Solovei, VA .

JETP LETTERS, 2002, 76 (06) :332-336

[2] On the stopping of fast particles and on the creation of positive electrons [J].

Bethe, H ;

Heitler, W .

PROCEEDINGS OF THE ROYAL SOCIETY OF LONDON SERIES A-CONTAINING PAPERS OF A MATHEMATICAL AND PHYSICAL CHARACTER, 1934, 146 (A856) :0083-0112

[3] Radiative neutron beta-decay and its possible experimental realization [J].

Gaponov, YV ;

Khafizov, RU .

PHYSICS LETTERS B, 1996, 379 (1-4) :7-12

[4] The radiative beta-decay mode of the free neutron [J].

Gaponov, YV ;

Khafizov, RU .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2000, 440 (03) :557-561

[5] Review of particle physics -: art. no. 010001 [J].

Hagiwara, K ;

Hikasa, K ;

Nakamura, K ;

Tanabashi, M ;

Aguilar-Benitez, M ;

Amsler, C ;

Barnett, RM ;

Burchat, PR ;

Carone, CD ;

Caso, C ;

Conforto, G ;

Dahl, O ;

Doser, M ;

Eidelman, S ;

Feng, JL ;

Gibbons, L ;

Goodman, M ;

Grab, C ;

Groom, DE ;

Gurtu, A ;

Hayes, KG ;

Hernández-Rey, JJ ;

Honscheid, K ;

Kolda, C ;

Mangano, ML ;

Manley, DM ;

Manohar, AV ;

March-Russell, J ;

Masoni, A ;

Miquel, R ;

Monig, K ;

Murayama, H ;

Navas, S ;

Olive, KA ;

Pape, L ;

Patrignani, C ;

Piepke, A ;

Roos, M ;

Terning, J ;

Tornqvist, NA ;

Trippe, TG ;

Vogel, P ;

Wohl, CG ;

Workman, RL ;

Yao, WM ;

Armstrong, B ;

Gee, PS ;

Lugovsky, KS ;

Lugovsky, SB ;

Lugovsky, VS .

PHYSICAL REVIEW D, 2002, 66 (01)

[6]

JACKSON JD, 1962, CLASSICAL ELECTRODYN, P526

[7]

KHAFIZOV RU, 2003, P 11 INT S INT NEUTR

[8] GENERAL PROPERTIES OF ELECTROMAGNETIC CORRECTIONS TO BETA DECAY OF A PHYSICAL NUCLEON [J].

SIRLIN, A .

PHYSICAL REVIEW, 1967, 164 (05) :1767-&

[9] LARGE MW, MZ BEHAVIOR OF THE O(ALPHA) CORRECTIONS TO SEMI-LEPTONIC PROCESSES MEDIATED BY W [J].

SIRLIN, A .

NUCLEAR PHYSICS B, 1982, 196 (01) :83-92

[10] CURRENT-ALGEBRA FORMULATION OF RADIATIVE-CORRECTIONS IN GAUGE THEORIES AND UNIVERSALITY OF WEAK INTERACTIONS [J].

SIRLIN, A .

REVIEWS OF MODERN PHYSICS, 1978, 50 (03) :573-605

← 1 2 →