A new slant on hadron structure

Rather than regarding the restriction of current lattice QCD simulations to quark masses that are 5–10 times larger than those observed as a problem, we note that this presents a wonderful opportunity to deepen our understanding of QCD. Just as it has been possible to learn a great deal about QCD by...

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Bibliographic Details
Published inPramāṇa Vol. 57; no. 2-3; pp. 251 - 261
Main Authors Detmold, W, Leinweber, D B, Melnitchouk, W, Thomas, A W, Wright, S V
Format Journal Article Conference Proceeding
LanguageEnglish
Published Dordrecht Springer Nature B.V 01.08.2001
Subjects
CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS
ENANTIOMORPHS
HADRONS
MAGNETIC MOMENTS
Magnetic properties
Mathematical analysis
NUCLEAR PHYSICS
NUCLEAR PHYSICS AND RADIATION PHYSICS
PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
QUANTUM CHROMODYNAMICS
QUARKS
STRUCTURE FUNCTIONS
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Summary:Rather than regarding the restriction of current lattice QCD simulations to quark masses that are 5–10 times larger than those observed as a problem, we note that this presents a wonderful opportunity to deepen our understanding of QCD. Just as it has been possible to learn a great deal about QCD by treating Nc as a variable, so the study of hadron properties as a function of quark mass is leading us to a deeper appreciation of hadron structure. As examples we cite progress in using the chiral properties of QCD to connect hadron masses, magnetic moments, charge radii and structure functions calculated at large quark masses within lattice QCD with the values observed physically.
Bibliography:USDOE Office of Energy Research (ER) (US)
AC05-84ER40150
JLAB-THY-01-43; DOE/ER/40150-2042; nucl-th/0104043; ADP-01-05/T440
ISSN:0304-4289
0973-7111
DOI:10.1007/s12043-001-0036-6