Published 2010 | Version v1
Journal article Metadata-only

First results of Beta-asymmetry measurement in neutron decay with the spectrometer Perkeo III

Creators

  • 1. Physikalisches Institut, Universitaet Heidelberg (Germany)
  • 2. Institut Laue-Langevin, Grenoble (France)
  • 3. Physik-Department E18, TU Muenchen (Germany)
  • 4. Atominstitut, TU Wien (Austria)

Description

Neutron decay is well described by theory. Accurate measurements of correlations in this semileptonic decay allow high precision tests of the Standard Model and physics beyond, i.e. unitarity of quark mixing CKM matrix, right handed currents or scalar and tensor interactions. With the new spectrometer Perkeo III we measured the parity-violating Beta-asymmetry described by the correlation-coefficient A. We improved systematics as well as statistics. The measurement is virtually background-free due to the use of a pulsed cold neutron beam. The instrument was installed at the high flux neutron source at the ILL. Data taking has been finished in August 2009. We present the current status of the data analysis.

Additional details

Identifiers

URL
http://www.dpg-verhandlungen.de;

Publishing Information

Journal Title
Verhandlungen der Deutschen Physikalischen Gesellschaft
Journal Issue
Bonn 2010 issue
Series
Also available as printed version: Verhandlungen der Deutschen Physikalischen Gesellschaft v. 45(2)
Journal Page Range
[1 p.]
ISSN
0420-0195
CODEN
VDPEAZ

Conference

Title
74. Annual meeting with ordinary general meeting of the DPG and 2010 Spring meeting with the professional associations extraterrestrial physics, gravitation and theory of relativity, hadrons and nuclei, particle physics, theoretical and mathematical fundamentals of the physics, the working teams equal opportunities, energy, the working groups information, young DPG, philosophy of the physics, physics and disarmament, symposia industry and book exhibition
Original Conference Title
74. Jahrestagung mit Ordentlicher Mitgliederversammlung der DPG und Fruehjahrstagung 2010 mit den Fachverbaenden Extraterrestrische Physik, Gravitation und Relativitaetstheorie, Hadronen und Kerne, Teilchenphysik, Theoretische und Mathematische Grundlagen der Physik, den Arbeitskreisen Chancengleichheit, Energie, den Arbeitsgruppen junge DPG, Information, Philosophie der Physik, Physik und Abruestung, Symposien Industrie- und Buchausstellung
Dates
15-19 Mar 2010
Place
Bonn (Germany)

INIS

Country of Publication
Germany
Country of Input or Organization
Germany
INIS RN
41126866
Subject category
S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
Resource subtype / Literary indicator
Conference
Descriptors DEI
ASYMMETRY; CORRELATIONS; NEUTRONS; P INVARIANCE; SEMILEPTONIC DECAY; SYMMETRY BREAKING
Descriptors DEC
BARYONS; DECAY; ELEMENTARY PARTICLES; FERMIONS; HADRONS; INVARIANCE PRINCIPLES; NUCLEONS; PARTICLE DECAY; WEAK PARTICLE DECAY

Optional Information

Notes
Session: HK 27.4 Di 17:45; No further information available