Published January 1, 2002 | Version v1
Journal article Metadata-only

Protonium annihilation into π0π0 at rest in a liquid hydrogen target

Creators

  • 1. Dipartimento di Fisica dell'Universita di Bologna and INFN Sezione di Bologna, Bologna (Italy)

Description

The annihilation frequency of the reaction p(bar sign)p→π0π0 at rest in liquid hydrogen has been measured by the Obelix experiment by using different apparatus configurations and trigger conditions. The value obtained is f(π0π0, LH)=(2.8±0.1stat±0.4syst)x10-4. With the same data samples, the π0η annihilation frequency has been determined to be f(π0η, LH)=(0.9±0.2stat±0.1syst)x10-4. The results are discussed within the frame of the present experimental situation

Additional details

Identifiers

DOI
10.1103/PhysRevD.65.012001;

Publishing Information

Journal Title
Physical Review. D, Particles Fields
Journal Volume
65
Journal Issue
1
Journal Page Range
p. 012001-012001.11
ISSN
0556-2821
CODEN
PRVDAQ

INIS

Country of Publication
United States
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
35039427
Subject category
S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; S74: ATOMIC AND MOLECULAR PHYSICS;
Resource subtype / Literary indicator
Numerical Data
Descriptors DEI
ANNIHILATION; ETA MESONS; EXPERIMENTAL DATA; HADRONIC ATOMS; MULTIPARTICLE SPECTROMETERS; PARTICLE IDENTIFICATION; PARTICLE PRODUCTION; PIONS NEUTRAL; PROTON-ANTIPROTON INTERACTIONS
Descriptors DEC
ATOMS; BARYON-BARYON INTERACTIONS; BOSONS; DATA; ELEMENTARY PARTICLES; HADRON-HADRON INTERACTIONS; HADRONS; INFORMATION; INTERACTIONS; MEASURING INSTRUMENTS; MESONS; NUCLEON-ANTINUCLEON INTERACTIONS; NUMERICAL DATA; PARTICLE INTERACTIONS; PIONS; PSEUDOSCALAR MESONS; SPECTROMETERS

Optional Information

Notes
(c) 2001 The American Physical Society
Collaborations
OBELIX Collaboration