Published May 23, 2011 | Version v1
Journal article Metadata-only

Dispersive analysis of the new Belle γγ→ππ results with chiral constraints

Creators

  • 1. Departamento de Fisica Teorica II, Universidad Complutense de Madrid, E-28040 Madrid (Spain)
  • 2. Groupe de Physique Theorique, Institut de Physique Nucleaire Universite Paris-Sud 11, F-91406 Orsay (France)

Description

We present an analysis of the recent high-statistics γγ→ππ data from the Belle collaboration, based on the method of matching dispersive Muskhelishvili-Omnes type equations and chiral expansion formulas, extended beyond the region of ππ elastic scattering. Chiral constraints which derive from the knowledge of all of the p4 and one of the relevant p6 coupling constants are implemented. Values of the pion dipole as well as quadrupole polarizabilities are deduced.

Additional details

Identifiers

DOI
10.1063/1.3574994;

Publishing Information

Journal Title
AIP Conference Proceedings
Journal Volume
1343
Journal Issue
1
Journal Page Range
p. 256-258
ISSN
0094-243X
CODEN
APCPCS

Conference

Title
9. international conference on quark confinement and the hadron spectrum
Acronym
QCHS 9
Dates
30 Aug - 3 Sep 2010
Place
Madrid (Spain)

INIS

Country of Publication
United States
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
42104784
Subject category
S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
Resource subtype / Literary indicator
Conference
Descriptors DEI
CHIRAL SYMMETRY; CHIRALITY; COUPLING CONSTANTS; DIPOLES; ELASTIC SCATTERING; EXPANSION; GAMMA RADIATION; INTERACTIONS; PHOTONS; PION-PION INTERACTIONS; PIONS; POLARIZABILITY; POLARIZATION
Descriptors DEC
BOSONS; ELECTRICAL PROPERTIES; ELECTROMAGNETIC RADIATION; ELEMENTARY PARTICLES; HADRON-HADRON INTERACTIONS; HADRONS; INTERACTIONS; IONIZING RADIATIONS; MASSLESS PARTICLES; MESON-MESON INTERACTIONS; MESONS; MULTIPOLES; PARTICLE INTERACTIONS; PARTICLE PROPERTIES; PHYSICAL PROPERTIES; PSEUDOSCALAR MESONS; RADIATIONS; SCATTERING; SYMMETRY

Optional Information

Notes
(c) 2011 American Institute of Physics