Show simple item record

dc.contributor.author
Banerjee, D.
dc.contributor.author
Bernhard, J.
dc.contributor.author
Burtsev, V. E.
dc.contributor.author
Chumakov, A. G.
dc.contributor.author
Cooke, D.
dc.contributor.author
Crivelli, P.
dc.contributor.author
Depero, E.
dc.contributor.author
Dermenev, A. V.
dc.contributor.author
Donskov, S. V.
dc.contributor.author
Dusaev, R. R.
dc.contributor.author
Enik, T.
dc.contributor.author
Charitonidis, N.
dc.contributor.author
Feshchenko, A.
dc.contributor.author
Frolov, V. N.
dc.contributor.author
Gardikiotis, A.
dc.contributor.author
Gerassimov, S. G.
dc.contributor.author
Gninenko, S.N.
dc.contributor.author
Hösgen, M.
dc.contributor.author
Jeckel, M.
dc.contributor.author
Kachanov, V. A.
dc.contributor.author
Molina-Bueno L.
dc.contributor.author
Radics, Balint
dc.contributor.author
Rubbia, A.
dc.contributor.author
Sieber, H.
dc.contributor.author
et al.
dc.date.accessioned
2020-09-10T07:15:44Z
dc.date.available
2020-09-04T20:03:02Z
dc.date.available
2020-09-10T07:15:44Z
dc.date.issued
2020-08-17
dc.identifier.issn
0031-9007
dc.identifier.issn
1079-7114
dc.identifier.other
10.1103/PhysRevLett.125.081801
en_US
dc.identifier.uri
http://hdl.handle.net/20.500.11850/438580
dc.identifier.doi
10.3929/ethz-b-000438580
dc.description.abstract
We carried out a model-independent search for light scalar (s) and pseudoscalar axionlike (a) particles that couple to two photons by using the high-energy CERN SPS H4 electron beam. The new particles, if they exist, could be produced through the Primakoff effect in interactions of hard bremsstrahlung photons generated by 100 GeVelectrons in the NA64 active dump with virtual photons provided by the nuclei of the dump. The a(s) would penetrate the downstream HCAL module, serving as a shield, and would be observed either through their a(s) -> gamma gamma decay in the rest of the HCAL detector, or as events with a large missing energy if the a(s) decays downstream of the HCAL. This method allows for the probing of the a(s) parameter space, including those from generic axion models, inaccessible to previous experiments. No evidence of such processes has been found from the analysis of the data corresponding to 2.84 x 10(11) electrons on target, allowing us to set new limits on the a(s)gamma gamma-coupling strength for a(s) masses below 55 MeV.
en_US
dc.format
application/pdf
en_US
dc.language.iso
en
en_US
dc.publisher
American Physical Society
en_US
dc.rights.uri
http://creativecommons.org/licenses/by/4.0/
dc.title
Search for Axionlike and Scalar Particles with the NA64 Experiment
en_US
dc.type
Journal Article
dc.rights.license
Creative Commons Attribution 4.0 International
ethz.journal.title
Physical Review Letters
ethz.journal.volume
125
en_US
ethz.journal.issue
8
en_US
ethz.journal.abbreviated
Phys. rev. lett.
ethz.pages.start
081801
en_US
ethz.size
7 p.
en_US
ethz.version.deposit
publishedVersion
en_US
ethz.identifier.wos
ethz.identifier.scopus
ethz.publication.place
College Park, MD
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::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::03503 - Rubbia, André / Rubbia, André
ethz.date.deposited
2020-09-04T20:03:25Z
ethz.source
WOS
ethz.eth
yes
en_US
ethz.availability
Open access
en_US
ethz.rosetta.installDate
2020-09-10T07:15:56Z
ethz.rosetta.lastUpdated
2021-02-15T17:06:58Z
ethz.rosetta.exportRequired
true
ethz.rosetta.versionExported
true
ethz.COinS
ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.atitle=Search%20for%20Axionlike%20and%20Scalar%20Particles%20with%20the%20NA64%20Experiment&rft.jtitle=Physical%20Review%20Letters&rft.date=2020-08-17&rft.volume=125&rft.issue=8&rft.spage=081801&rft.issn=0031-9007&1079-7114&rft.au=Banerjee,%20D.&Bernhard,%20J.&Burtsev,%20V.%20E.&Chumakov,%20A.%20G.&Cooke,%20D.&rft.genre=article&rft_id=info:doi/10.1103/PhysRevLett.125.081801&
 Search print copy at ETH Library

Files in this item

Thumbnail

Publication type

Show simple item record