Published 2009 | Version v1
Journal article Metadata-only

Electromagnetic corrections in η→3π decays

Creators

  • 1. Bethe Center for Theoretical Physics, Universitaet Bonn (Germany)
  • 2. Helmholtz-Institut fuer Strahlen- und Kernphysik (Theorie), Universitaet Bonn (Germany)
  • 3. Institut fuer Kernphysik (Theorie) and Juelich Center for Hadron Physics, Forschungszentrum Juelich, D-52425 Juelich (Germany)

Description

We re-evaluate the electromagnetic corrections to η→3π decays at next-to-leading order in the chiral expansion, arguing that effects of order e2(mu-md) disregarded so far are not negligible compared to other contributions of order e2 times a light quark mass. Despite the appearance of the Coulomb pole in η→π+π-π0 and cusps in η→3π0, the overall corrections remain small.

Additional details

Identifiers

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

Publishing Information

Journal Title
Verhandlungen der Deutschen Physikalischen Gesellschaft
Journal Issue
Bochum 2009 issue
Series
Also available as printed version: Verhandlungen der Deutschen Physikalischen Gesellschaft v. 44(3)
Journal Page Range
[1 p.]
ISSN
0420-0195
CODEN
VDPEAZ

Conference

Title
DPG Spring meeting 2009 in conjunction with the European Nuclear Physics Conference (EuNPC) of the DPG Division hadronic and nuclear physics and the nuclear physics board of the European Physical Society (EPS)
Dates
16-20 Mar 2009
Place
Bochum (Germany)

INIS

Country of Publication
Germany
Country of Input or Organization
Germany
INIS RN
41025980
Subject category
S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
Resource subtype / Literary indicator
Conference
Descriptors DEI
CHIRALITY; COULOMB CORRECTION; ETA MESONS; HADRONIC PARTICLE DECAY; SERIES EXPANSION
Descriptors DEC
BOSONS; CORRECTIONS; DECAY; ELEMENTARY PARTICLES; HADRONS; MESONS; PARTICLE DECAY; PARTICLE PROPERTIES; PSEUDOSCALAR MESONS

Optional Information

Notes
Session: HK 51.4 Mi 15:00; No further information available