Published June 2007 | Version v1
Journal article Metadata-only

Two-pion-exchange parity-violating potential and np→dγ

Creators

  • 1. Sungkyunkwan University, Department of Physics and Institute of Basic Science, Suwon (Korea, Republic of)
  • 2. Laboratoire de Physique Subatomique et de Cosmologie, Grenoble Cedex (France)

Description

We calculate the parity-violating nucleon-nucleon potential in heavy-baryon chiral perturbation theory up to next-to-next-to-leading order. The one-pion exchange enters in leading order and the next-to-next-to-leading order consists of two-pion-exchange and the two-nucleon contact terms. In order to investigate the effect of the higher-order contributions, we calculate the parity-violating asymmetry in np→dγ at threshold. The one-pion-exchange contribution dominates the physical observable, while the two-pion-exchange contribution is about or less than 10% of the one-pion-exchange one. (orig.)

Availability note (English)

Available from: http://dx.doi.org/10.1140/epja/i2006-10426-8

Additional details

Identifiers

DOI
10.1140/epja/i2006-10426-8;

Publishing Information

Journal Title
European Physical Journal. A
Journal Volume
32
Journal Issue
4
Journal Page Range
p. 513-515
ISSN
1434-6001

Conference

Title
3. workshop from parity violation to hadronic structure and more (PAVI 2006)
Dates
16-20 May 2006
Place
Milos (Greece)

INIS

Country of Publication
Germany
Country of Input or Organization
Germany
INIS RN
38103255
Subject category
S73: NUCLEAR PHYSICS AND RADIATION PHYSICS;
Resource subtype / Literary indicator
Conference, Numerical Data
Descriptors DEI
CAPTURE; CHIRALITY; DEUTERIUM; E1-TRANSITIONS; FLAVOR MODEL; GAMMA RADIATION; HYDROGEN 1 TARGET; M1-TRANSITIONS; NEUTRON REACTIONS; NUCLEON-NUCLEON POTENTIAL; OPE POTENTIAL; P INVARIANCE; PERTURBATION THEORY; PHOTONS; PIONS; PROTON-NEUTRON INTERACTIONS; SYMMETRY BREAKING; THEORETICAL DATA; TRANSITION AMPLITUDES
Descriptors DEC
AMPLITUDES; BARYON REACTIONS; BARYON-BARYON INTERACTIONS; BOSONS; COMPOSITE MODELS; DATA; ELECTROMAGNETIC RADIATION; ELEMENTARY PARTICLES; ENERGY-LEVEL TRANSITIONS; HADRON REACTIONS; HADRON-HADRON INTERACTIONS; HADRONS; HYDROGEN ISOTOPES; INFORMATION; INTERACTIONS; INVARIANCE PRINCIPLES; IONIZING RADIATIONS; ISOTOPES; LIGHT NUCLEI; MASSLESS PARTICLES; MATHEMATICAL MODELS; MESONS; MULTIPOLE TRANSITIONS; NUCLEAR REACTIONS; NUCLEI; NUCLEON REACTIONS; NUCLEON-NUCLEON INTERACTIONS; NUMERICAL DATA; ODD-ODD NUCLEI; PARTICLE INTERACTIONS; PARTICLE MODELS; PARTICLE PROPERTIES; POTENTIALS; PROTON-NUCLEON INTERACTIONS; PSEUDOSCALAR MESONS; QUARK MODEL; RADIATIONS; STABLE ISOTOPES; TARGETS