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dc.contributor.author
Cooke, David A.
dc.contributor.author
Crivelli, Paolo
dc.contributor.author
Alnis, Janis
dc.contributor.author
Antognini, Aldo
dc.contributor.author
Brown, Benjamin L.
dc.contributor.author
Friedreich, Susanne
dc.contributor.author
Gabard, Alexander
dc.contributor.author
Hänsch, Theodor W.
dc.contributor.author
Kirch, Klaus
dc.contributor.author
Rubbia, André
dc.contributor.author
Vranković, Vjeran
dc.date.accessioned
2022-08-08T12:50:57Z
dc.date.available
2017-06-11T19:20:28Z
dc.date.available
2022-08-08T12:50:57Z
dc.date.issued
2015-08
dc.identifier.issn
0304-3843
dc.identifier.issn
1572-9540
dc.identifier.other
10.1007/s10751-015-1158-4
en_US
dc.identifier.uri
http://hdl.handle.net/20.500.11850/104261
dc.identifier.doi
10.3929/ethz-b-000104261
dc.description.abstract
We report the first observation of the annihilation of positronium from the 2S state. Positronium (Ps) is excited with a two-photon transition from the 1S to the 2S state where its lifetime is increased by a factor of eight compared to the ground state due to the decrease in the overlap of the positron electron wave-function. The yield of delayed annihilation photons detected as a function of laser frequency is used as a new method of detecting laser-excited Ps in the 2S state. This can be considered the first step towards a new high precision measurement of the 1S–2S Ps line.
en_US
dc.format
application/pdf
en_US
dc.language.iso
en
en_US
dc.publisher
Springer
en_US
dc.rights.uri
http://rightsstatements.org/page/InC-NC/1.0/
dc.subject
Positronium
en_US
dc.subject
Spectroscopy
en_US
dc.subject
Bound state QED
en_US
dc.title
Observation of positronium annihilation in the 2S state: towards a new measurement of the 1S-2S transition frequency
en_US
dc.type
Conference Paper
dc.rights.license
In Copyright - Non-Commercial Use Permitted
dc.date.published
2015-03-26
ethz.book.title
Proceedings of the International Conference on Exotic Atoms and Related Topics (EXA 2014)
en_US
ethz.journal.title
Hyperfine Interactions
ethz.journal.volume
233
en_US
ethz.journal.issue
1
en_US
ethz.journal.abbreviated
Hyperfine Interact
ethz.pages.start
67
en_US
ethz.pages.end
73
en_US
ethz.version.deposit
publishedVersion
en_US
ethz.event
International Conference on Exotic Atoms and Related Topics (EXA 2014)
en_US
ethz.event.location
Vienna, Austria
en_US
ethz.event.date
September 15-19, 2014
en_US
ethz.notes
It was possible to publish this article open access thanks to a Swiss National Licence with the publisher.
en_US
ethz.identifier.wos
ethz.identifier.scopus
ethz.publication.place
Berlin
en_US
ethz.publication.status
published
en_US
ethz.leitzahl
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02010 - Dep. Physik / Dep. of Physics::02532 - Institut für Teilchen- und Astrophysik / Inst. Particle Physics and Astrophysics::03864 - Kirch, Klaus / Kirch, Klaus
en_US
ethz.leitzahl
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02010 - Dep. Physik / Dep. of Physics::02532 - Institut für Teilchen- und Astrophysik / Inst. Particle Physics and Astrophysics::03503 - Rubbia, André / Rubbia, André
en_US
ethz.leitzahl.certified
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02010 - Dep. Physik / Dep. of Physics::02532 - Institut für Teilchen- und Astrophysik / Inst. Particle Physics and Astrophysics::03503 - Rubbia, André / Rubbia, André
ethz.leitzahl.certified
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02010 - Dep. Physik / Dep. of Physics::02532 - Institut für Teilchen- und Astrophysik / Inst. Particle Physics and Astrophysics::03864 - Kirch, Klaus / Kirch, Klaus
ethz.date.deposited
2017-06-11T19:20:32Z
ethz.source
ECIT
ethz.identifier.importid
imp5936537a311bb79796
ethz.ecitpid
pub:163099
ethz.eth
yes
en_US
ethz.availability
Open access
en_US
ethz.rosetta.installDate
2017-07-15T02:45:30Z
ethz.rosetta.lastUpdated
2024-02-02T17:48:25Z
ethz.rosetta.versionExported
true
ethz.COinS
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