Published August 5, 2010 | Version v1
Journal article Metadata-only

Search for η-mesic helium using WASA-at-COSY

Creators

  • 1. Institut fuer Kernphysik and Juelich Center for Hadron Physics, Forschungszentrum Juelich, Juelich (Germany)
  • 2. Institute of Physics, Jagellonian University, 30-059 Cracow (Poland)

Description

The installation of the WASA detector at the cooler synchrotron COSY opened the possibility to search for η-mesic helium with high statistics and high acceptance. A search for the 4He--η bound state is conducted via an exclusive measurement of the excitation function for the dd→3Hepπ- reaction varying continuously the beam momentum around the threshold for the dd→4Heη reaction. Ramping of the beam momentum and taking advantage of the large acceptance of the WASA detector allows to minimize systematical uncertainities.

Additional details

Identifiers

DOI
10.1063/1.3483429;

Publishing Information

Journal Title
AIP Conference Proceedings
Journal Volume
1257
Journal Issue
1
Journal Page Range
p. 725-728
ISSN
0094-243X
CODEN
APCPCS

Conference

Title
13. international conference on hadron spectroscopy
Acronym
HADRON 2009
Dates
29 Nov - 4 Dec 2009
Place
Tallahassee, FL (United States)

INIS

Country of Publication
United States
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
42031497
Subject category
S73: NUCLEAR PHYSICS AND RADIATION PHYSICS;
Resource subtype / Literary indicator
Conference
Descriptors DEI
BOUND STATE; COSY STORAGE RING; DEUTERIUM TARGET; DEUTERON REACTIONS; ETA MESONS; EXCITATION FUNCTIONS; EXCLUSIVE INTERACTIONS; HELIUM 4; MULTIPARTICLE SPECTROMETERS; NUCLEAR STRUCTURE; PARTICLE IDENTIFICATION; STATISTICS
Descriptors DEC
ACCELERATORS; BOSONS; CHARGED-PARTICLE REACTIONS; CROSS SECTIONS; CYCLIC ACCELERATORS; DIFFERENTIAL CROSS SECTIONS; ELEMENTARY PARTICLES; EVEN-EVEN NUCLEI; FUNCTIONS; HADRONS; HELIUM ISOTOPES; INTERACTIONS; ISOTOPES; LIGHT NUCLEI; MATHEMATICS; MEASURING INSTRUMENTS; MESONS; NUCLEAR REACTIONS; NUCLEI; PARTICLE INTERACTIONS; PSEUDOSCALAR MESONS; SPECTROMETERS; STABLE ISOTOPES; STORAGE RINGS; SYNCHROTRONS; TARGETS

Optional Information

Notes
(c) 2010 American Institute of Physics
Collaborations
WASA-at-COSY Collaboration