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dc.contributor.author
Catena, Riccardo
dc.contributor.author
Emken, Timon
dc.contributor.author
Spaldin, Nicola
dc.contributor.author
Tarantino, Walter
dc.date.accessioned
2020-10-16T09:54:07Z
dc.date.available
2020-10-16T08:39:29Z
dc.date.available
2020-10-16T09:54:07Z
dc.date.issued
2020
dc.identifier.issn
2643-1564
dc.identifier.other
10.1103/physrevresearch.2.033195
en_US
dc.identifier.uri
http://hdl.handle.net/20.500.11850/446312
dc.identifier.doi
10.3929/ethz-b-000446312
dc.description.abstract
In the leading paradigm of modern cosmology, about 80% of our Universe's matter content is in the form of hypothetical, as yet undetected particles. These do not emit or absorb radiation at any observable wavelengths, and therefore constitute the so-called dark matter (DM) component of the Universe. Detecting the particles forming the Milky Way DM component is one of the main challenges for astroparticle physics and basic science in general. One promising way to achieve this goal is to search for rare DM-electron interactions in low-background deep underground detectors. Key to the interpretation of this search is the response of detectors' materials to elementary DM-electron interactions defined in terms of electron wave functions' overlap integrals. In this work, we compute the response of atomic argon and xenon targets used in operating DM search experiments to general, so far unexplored DM-electron interactions. We find that the rate at which atoms can be ionized via DM-electron scattering can in general be expressed in terms of four independent atomic responses, three of which we identify here for the first time. We find our new atomic responses to be numerically important in a variety of cases, which we identify and investigate thoroughly using effective theory methods. We then use our atomic responses to set 90% confidence level (C.L.) exclusion limits on the strength of a wide range of DM-electron interactions from the null result of DM search experiments using argon and xenon targets.
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
Atomic responses to general dark matter-electron interactions
en_US
dc.type
Journal Article
dc.rights.license
Creative Commons Attribution 4.0 International
dc.date.published
2020-08-05
ethz.journal.title
Physical Review Research
ethz.journal.volume
2
en_US
ethz.journal.issue
3
en_US
ethz.journal.abbreviated
Phys. Rev. Res.
ethz.pages.start
033195
en_US
ethz.size
27 p.
en_US
ethz.version.deposit
publishedVersion
en_US
ethz.grant
Hidden, entangled and resonating orders/HERO
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::02160 - Dep. Materialwissenschaft / Dep. of Materials::03903 - Spaldin, Nicola A. / Spaldin, Nicola A.
en_US
ethz.leitzahl.certified
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02160 - Dep. Materialwissenschaft / Dep. of Materials::03903 - Spaldin, Nicola A. / Spaldin, Nicola A.
en_US
ethz.grant.agreementno
810451
ethz.grant.fundername
EC
ethz.grant.funderDoi
10.13039/501100000780
ethz.grant.program
H2020
ethz.date.deposited
2020-10-16T08:39:40Z
ethz.source
FORM
ethz.eth
yes
en_US
ethz.availability
Open access
en_US
ethz.rosetta.installDate
2020-10-16T09:54:19Z
ethz.rosetta.lastUpdated
2021-02-15T18:25:19Z
ethz.rosetta.exportRequired
true
ethz.rosetta.versionExported
true
ethz.COinS
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