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Author
dc.contributor.author
Borsanyi, S 
Author
dc.contributor.author
Durr, S 
Author
dc.contributor.author
Fodor, Z 
Author
dc.contributor.author
Frison, J 
Author
dc.contributor.author
Hoelbling, C 
Author
dc.contributor.author
Katz, SD 
Author
dc.contributor.author
Krieg, S 
Author
dc.contributor.author
Kurth, T 
Author
dc.contributor.author
Lellouch, L 
Author
dc.contributor.author
Lippert, T 
Availability Date
dc.date.accessioned
2020-04-07T08:19:00Z
Availability Date
dc.date.available
2020-04-07T08:19:00Z
Release
dc.date.issued
2013
uri
dc.identifier.uri
http://hdl.handle.net/10831/43211
Abstract
dc.description.abstract
While electromagnetic and up-down quark mass difference effects on octet baryon masses are very small, they have important consequences. The stability of the hydrogen atom against beta decay is a prominent example. Here, we include these effects by adding them to valence quarks in a lattice QCD calculation based on N-f = 2 + 1 simulations with five lattice spacings down to 0.054 fm, lattice sizes up to 6 fm, and average up-down quark masses all the way down to their physical value. This allows us to gain control over all systematic errors, except for the one associated with neglecting electromagnetism in the sea. We compute the octet baryon isomultiplet mass splittings, as well as the individual contributions from electromagnetism and the up-down quark mass difference. Our results for the total splittings are in good agreement with experiment.
Language
dc.language
Angol
Title
dc.title
Isospin Splittings in the Light-Baryon Octet from Lattice QCD and QED
Type
dc.type
folyóiratcikk
Date Change
dc.date.updated
2019-07-16T13:45:12Z
Doi ID
dc.identifier.doi
10.1103/PhysRevLett.111.252001
Wos ID
dc.identifier.wos
000328883700001
ID Scopus
dc.identifier.scopus
84890624213
MTMT ID
dc.identifier.mtmt
2514943
Issue Number
dc.identifier.issue
25
abbreviated journal
dc.identifier.jabbrev
PHYS REV LETT
Journal
dc.identifier.jtitle
PHYSICAL REVIEW LETTERS
Volume Number
dc.identifier.volume
111
Release Date
dc.description.issuedate
2013
Pubmed ID
dc.identifier.pubmed
24483739
department of Author
dc.contributor.institution
MTA-ELTE Elméleti Fizikai Kutatócsoport
department of Author
dc.contributor.institution
MTA Határon Túli Magyarok Titkársága
department of Author
dc.contributor.institution
MTA-ELTE Lendület Rácstérelméleti Kutatócsoport
department of Author
dc.contributor.institution
Atomfizikai Tanszék
department of Author
dc.contributor.institution
Elméleti Fizikai Tanszék
department of Author
dc.contributor.institution
Komplex Rendszerek Fizikája Tanszék
Author institution
dc.contributor.department
Elméleti Fizikai Tanszék
Author institution
dc.contributor.department
MTA-ELTE Lendület Rácstérelméleti Kutatócsoport


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Isospin Splittings in the Light-Baryon Octet from Lattice QCD and QED
 

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