Published April 14, 2003 | Version v1
Report Metadata-only

Observation of a Narrow Meson Decaying to Ds+ π0 at a Mass of 2.32 GeV/c2

Creators

Description

We have observed a narrow state near 2.32 GeV/c2 in the inclusive Ds+ π0 invariant mass distribution from e+e- annihilation data at energies near 10.6 GeV. The observed width is consistent with the experimental resolution. The small intrinsic width and the quantum numbers of the final state indicate that the decay violates isospin conservation. The state has natural spin-parity and the low mass suggests a JP = 0+ assignment. The data sample corresponds to an integrated luminosity of 91 fb-1 recorded by the BABAR detector at the PEP-II asymmetric-energy e+e- storage ring

Availability note (English)

Available from PURL: https://www.osti.gov/servlets/purl/813006-j9Krne/native/

Additional details

Identifiers

URL
https://www.osti.gov/servlets/purl/813006-j9Krne/native/;

Publishing Information

Imprint Pagination
7 p.
Report number
SLAC-PUB--9711

INIS

Country of Publication
United States
Country of Input or Organization
United States
INIS RN
34065666
Subject category
S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; S43: PARTICLE ACCELERATORS;
Resource subtype / Literary indicator
Non-conventional Literature
Descriptors DEI
ANNIHILATION; BEAM EMITTANCE; ELECTRON-POSITRON INTERACTIONS; ISOSPIN; MASS DISTRIBUTION; MESONS; PARTICLE DECAY; PEP STORAGE RINGS; QUANTUM NUMBERS; RESOLUTION
Descriptors DEC
BOSONS; DECAY; DISTRIBUTION; ELEMENTARY PARTICLES; HADRONS; INTERACTIONS; LEPTON-LEPTON INTERACTIONS; PARTICLE INTERACTIONS; PARTICLE PROPERTIES; SPATIAL DISTRIBUTION; STORAGE RINGS

Optional Information

Contract/Grant/Project number
AC--03-76SF00515
Funding organization
USDOE Office of Science (United States)