Please use this identifier to cite or link to this item:
https://hdl.handle.net/2440/77540
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Full metadata record
DC Field | Value | Language |
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dc.contributor.author | Young, R. | - |
dc.date.issued | 2012 | - |
dc.identifier.citation | PoS (Lattice 2012); 014 | - |
dc.identifier.issn | 1824-8039 | - |
dc.identifier.uri | http://hdl.handle.net/2440/77540 | - |
dc.description | Extent: 12p. | - |
dc.description.abstract | The strange quark scalar content plays an important role in both the description of nucleon structure and in the determination of dark matter direct detection cross sections. As a measure of the strange-quark contribution to the nucleon mass, the strange-quark sigma term (ss) provides important insight into the nature of mass generation in QCD. The phenomenological determination of ss exhibits a wide range of variation, with values suggesting that the strange quark contributes anywhere between 0 and more than 30% of the nucleon mass. In the context of dark matter searches, coupled with relatively large Higgs coupling to strangeness, this variation dominates the uncertainty in predicted cross sections for a large class of dark matter models. Here we report on the recent results in lattice QCD, which are now giving a far more precise determination of ss than can be inferred from phenomenology. As a consequence, the lattice determinations of ss can now dramatically reduce the uncertainty in dark matter cross sections associated with the hadronic matrix elements. | - |
dc.description.statementofresponsibility | R. D. Young | - |
dc.description.uri | http://pos.sissa.it/cgi-bin/reader/conf.cgi?confid=164 | - |
dc.language.iso | en | - |
dc.publisher | Proceedings of Science | - |
dc.rights | © Copyright owned by the author(s) under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike Licence | - |
dc.source.uri | http://pos.sissa.it/archive/conferences/164/014/Lattice%202012_014.pdf | - |
dc.title | Strange quark content of the nucleon and dark matter searches | - |
dc.type | Conference paper | - |
dc.contributor.conference | International Symposium on Lattice Field Theory (30th : 2012 : Cairns, Australia) | - |
dc.identifier.doi | 10.22323/1.164.0014 | - |
dc.publisher.place | Italy | - |
pubs.publication-status | Published | - |
dc.identifier.orcid | Young, R. [0000-0002-4527-1811] | - |
Appears in Collections: | Aurora harvest Special Research Centre for the Subatomic Structure of Matter publications |
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File | Description | Size | Format | |
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hdl_77540.pdf | Published version | 1.49 MB | Adobe PDF | View/Open |
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