This title appears in the Scientific Report :
2008
Please use the identifier:
http://dx.doi.org/10.1126/science.1163233 in citations.
Ab initio Determination of Light Hadron Masses
Ab initio Determination of Light Hadron Masses
More than 99% of the mass of the visible universe is made up of protons and neutrons. Both particles are much heavier than their quark and gluon constituents, and the Standard Model of particle physics should explain this difference. We present a full ab initio calculation of the masses of protons,...
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Personal Name(s): | Dürr, S. |
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Fodor, Z. / Frison, J. / Hoelbling, C. / Hoffmann, R. / Katz, S. D. / Krieg, S. / Kurth, T. / Lellouch, L. / Lippert, T. / Szabo, K. K. / Vulvert, G. | |
Contributing Institute: |
Jülich Supercomputing Center; JSC Jülich-Aachen Research Alliance - Simulation Sciences; JARA-SIM |
Published in: | Science, 322 (2008) S. 1224 - 1227 |
Imprint: |
Washington, DC [u.a.]
American Association for the Advancement of Scienc
2008
|
Physical Description: |
1224 - 1227 |
DOI: |
10.1126/science.1163233 |
PubMed ID: |
19023076 |
Document Type: |
Journal Article |
Research Program: |
Scientific Computing |
Series Title: |
Science
322 |
Subject (ZB): | |
Publikationsportal JuSER |
More than 99% of the mass of the visible universe is made up of protons and neutrons. Both particles are much heavier than their quark and gluon constituents, and the Standard Model of particle physics should explain this difference. We present a full ab initio calculation of the masses of protons, neutrons, and other light hadrons, using lattice quantum chromodynamics. Pion masses down to 190 mega-electron volts are used to extrapolate to the physical point, with lattice sizes of approximately four times the inverse pion mass. Three lattice spacings are used for a continuum extrapolation. Our results completely agree with experimental observations and represent a quantitative confirmation of this aspect of the Standard Model with fully controlled uncertainties. |