Please use this identifier to cite or link to this item:
https://hdl.handle.net/2440/76822
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dc.contributor.author | Bali, G. | - |
dc.contributor.author | Bruns, P. | - |
dc.contributor.author | Collins, S. | - |
dc.contributor.author | Deka, M. | - |
dc.contributor.author | Glaessle, B. | - |
dc.contributor.author | Gockeler, M. | - |
dc.contributor.author | Greil, L. | - |
dc.contributor.author | Hemmert, T. | - |
dc.contributor.author | Horsley, R. | - |
dc.contributor.author | Najjar, J. | - |
dc.contributor.author | Nakamura, Y. | - |
dc.contributor.author | Nobile, A. | - |
dc.contributor.author | Pleiter, D. | - |
dc.contributor.author | Rakow, P. | - |
dc.contributor.author | Schafer, A. | - |
dc.contributor.author | Schiel, R. | - |
dc.contributor.author | Schierholz, G. | - |
dc.contributor.author | Sternbeck, A. | - |
dc.contributor.author | Zanotti, J. | - |
dc.date.issued | 2013 | - |
dc.identifier.citation | Nuclear Physics B, 2013; 866(1):1-25 | - |
dc.identifier.issn | 0550-3213 | - |
dc.identifier.issn | 1873-1562 | - |
dc.identifier.uri | http://hdl.handle.net/2440/76822 | - |
dc.description.abstract | We analyze Nf=2 nucleon mass data with respect to their dependence on the pion mass down to mπ=157MeV and compare it with predictions from covariant baryon chiral perturbation theory (BChPT). A novel feature of our approach is that we fit the nucleon mass data simultaneously with the directly obtained pion-nucleon σ-term. Our lattice data below mπ=435MeV is well described by O(p4) BChPT and we find σ=37(8)(6)MeV for the σ-term at the physical point. Using the nucleon mass to set the scale we obtain a Sommer parameter of r0=0.501(10)(11)fm. © 2012 Elsevier B.V. | - |
dc.description.statementofresponsibility | QCDSF Collaboration, G.S. Bali ... J. Zanotti ... et al. | - |
dc.language.iso | en | - |
dc.publisher | Elsevier Science BV | - |
dc.rights | © 2012 Elsevier B.V. All rights reserved. | - |
dc.source.uri | http://dx.doi.org/10.1016/j.nuclphysb.2012.08.009 | - |
dc.subject | Nucleon mass | - |
dc.subject | Pion–nucleon sigma term | - |
dc.subject | Sommer scale | - |
dc.subject | Covariant baryon chiral perturbation theory | - |
dc.subject | Finite size corrections | - |
dc.title | Nucleon mass and sigma term from lattice QCD with two light fermion flavors | - |
dc.type | Journal article | - |
dc.identifier.doi | 10.1016/j.nuclphysb.2012.08.009 | - |
dc.relation.grant | http://purl.org/au-research/grants/arc/FT100100005 | - |
dc.relation.grant | http://purl.org/au-research/grants/arc/FT100100005 | - |
pubs.publication-status | Published | - |
dc.identifier.orcid | Zanotti, J. [0000-0002-3936-1597] | - |
Appears in Collections: | Aurora harvest 4 Chemistry and Physics publications |
Files in This Item:
File | Description | Size | Format | |
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hdl_76822.pdf | Accepted version | 829.33 kB | Adobe PDF | View/Open |
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