REAL

Ab Initio Determination of Light Hadron Masses

Durr, S. and Fodor, Zoltán and Frison, J. and Hoelbling, C. and Hoffmann, R. and Katz, Sándor (2008) Ab Initio Determination of Light Hadron Masses. SCIENCE, 322 (5905). pp. 1224-1227. ISSN 0036-8075

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Abstract

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.

Item Type: Article
Uncontrolled Keywords: STATES; FINITE-VOLUME; ENERGY-SPECTRUM; VOLUME DEPENDENCE; QUANTUM-FIELD THEORIES; TEMPERATURE; quantitative analysis; priority journal; NEUTRON; HADRON; electromagnetic radiation; DYNAMICS; ARTICLE; quantum mechanics; fundamental particle; PROTON
Subjects: Q Science / természettudomány > QC Physics / fizika
SWORD Depositor: MTMT SWORD
Depositing User: MTMT SWORD
Date Deposited: 05 Sep 2017 08:15
Last Modified: 05 Sep 2017 08:15
URI: http://real.mtak.hu/id/eprint/61434

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