Bibliographic Citation
| Document | For copies of Journal Articles, please contact the Publisher or your local public or university library and refer to the information in the Resource Relation field. For copies of other documents, please see the Availability, Publisher, Research Organization, Resource Relation and/or Author (affiliation information) fields and/or Document Availability. |
|---|---|
| Title | Status of the IUCF pionium search |
| Creator/Author | Betker, A.C. ; Cameron, J.M. ; Jacobs, W.W. [and others] |
| Publication Date | 1995 Oct 01 |
| OSTI Identifier | OSTI ID: 255578 |
| Report Number(s) | CONF-9510116-- |
| Other Number(s) | Journal ID: BAPSA6; ISSN 0003-0503; TRN: TRN: 96:002195-0177 |
| Resource Type | Journal Article |
| Resource Relation | Journal Name: Bulletin of the American Physical Society; Journal Volume: 40; Journal Issue: 10; Conference: Fall meeting of the Division of Nuclear Physics of the American Physical Society, Bloomington, IN (United States), 25-28 Oct 1995; Other Information: PBD: Oct 1995 |
| Subject | 66 PHYSICS; PIONIUM; PARTICLE IDENTIFICATION; DEUTERIUM TARGET; PROTON REACTIONS; BRANCHING RATIO |
| Description/Abstract | A search for a {pi}{sup +} -{pi}{sub -} atomic bound state, pionium, is presently in progress at the IUCF cooler. The eventual goal is to measure the relative branching ratios of the decay channels. Pionium will be created via the D(p,{sup 3}He){pi}{sup +}{pi}{sup -} reaction just above the production threshold of 430.5 MeV. The {sup 3}He`s are separated from the primary proton beam by a 6{degree} bending magnet in the storage ring, and focused onto a Silicon-Germanium detector telescope by a magnetic channel. A set of plastic scintillators will be used to veto unbound charged-pion production with an expected 98% efficiency. In preparation for the pionium search, the D(p, {sup 3}He){pi}{degrees} and D(p,{sup 3} He)2{pi}{degrees} reactions are being studied to elucidate event selectivity, background, and the expected cross-section for free {pi}{sup +}{pi}{sup -} production. The current status of the experiment will be discussed. |
| Country of Publication | United States |
| Language | English |
| Format | Medium: X; Size: pp. 1628.e |
| System Entry Date | 2009 Dec 16 |
Top | |