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One-loop contribution to dark-matter-nucleon scattering in the pseudo-scalar dark matter model

2019-01Journal article Open access
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dc.contributor.authorAzevedo, Duarte
dc.contributor.authorDuch, Mateusz
dc.contributor.authorGrzadkowski, Bohdan
dc.contributor.authorHuang, Da
dc.contributor.authorIglicki, Michal
dc.contributor.authorSantos, Rui
dc.date.accessioned2022-03-04T12:28:55Z
dc.date.available2022-03-04T12:28:55Z
dc.date.issued2019-01
dc.description.abstractRecent dark matter (DM) direct searches place very stringent constraints on the possible DM candidates proposed in extensions of the Standard Model. There are however models where these constraints are avoided. One of the simplest and most striking examples comes from a straightforward Higgs-portal pseudo-scalar DM model featured with a softly broken U(1) symmetry. In this model the tree-level DM-nucleon scattering cross section vanishes in the limit of zero momentum transfer. It has also been argued that the leading-order DM-nucleon cross section appears at the one-loop level. In this work we have calculated the exact cross section in the zero momentum transfer at the leading order i.e., at the one-loop level of perturbative expansion. We have concluded that, in agreement with expectations, the amplitude for the scattering process is UV finite and approaches zero in the limit of vanishing DM masses. Moreover, we made clear that the finite DM velocity correction at tree level is subdominant with respect to the one-loop contribution. Based on the analytic formulae, our numerical studies show that, for a typical choice of model parameters, the DM nuclear recoiling cross section is well below OO(10−50 cm2), which indicates that the DM direct detection signal in this model naturally avoids present strong experimental limits on the cross section.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationAZEVEDO, Duarte; [et al] – One-loop contribution to dark-matter-nucleon scattering in the pseudo-scalar dark matter model. Journal of High Energy Physics. eISSN 1029-8479. Vol. 2019, N.º 1 (2019), pp. 1-20.pt_PT
dc.identifier.doi10.1007/JHEP01(2019)138pt_PT
dc.identifier.eissn1029-8479
dc.identifier.urihttp://hdl.handle.net/10400.21/14379
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherSpringerpt_PT
dc.relation.publisherversionhttps://link.springer.com/content/pdf/10.1007/JHEP01(2019)138.pdfpt_PT
dc.subjectBeyond Standard Modelpt_PT
dc.subjectHiggs Physicspt_PT
dc.titleOne-loop contribution to dark-matter-nucleon scattering in the pseudo-scalar dark matter modelpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage20pt_PT
oaire.citation.issue1pt_PT
oaire.citation.startPage1pt_PT
oaire.citation.titleJournal of High Energy Physicspt_PT
oaire.citation.volume2019pt_PT
person.familyNameAzevedo
person.familyNameDuch
person.familyNameGrzadkowski
person.familyNameSantos
person.givenNameDuarte
person.givenNameMateusz
person.givenNameBohdan
person.givenNameRui
person.identifier100360
person.identifier.ciencia-idEE1E-B7A4-FD9A
person.identifier.ciencia-id5A1A-5794-6DC2
person.identifier.orcid0000-0002-2647-1893
person.identifier.orcid0000-0002-9361-1067
person.identifier.orcid0000-0001-9980-6335
person.identifier.orcid0000-0002-7948-0355
person.identifier.ridF-1956-2010
person.identifier.scopus-author-id7006224664
person.identifier.scopus-author-id10739338800
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
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relation.isAuthorOfPublication.latestForDiscoveryf972a9bd-1bdd-4a47-8d1e-94e9595eddc0

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