Masses of Light Quarks in Quantum Chromodynamics - INSPIRE

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Masses of Light Quarks in Quantum Chromodynamics

W. Hubschmid
(
- Bern U.
)
,
S. Mallik
(
- Bern U.
)

Dec, 1980

13 pages

Published in:

Nucl.Phys.B 193 (1981) 368-380

Published: 1981

DOI:

10.1016/0550-3213(81)90338-2

Report number:

Print-81-0069 (BERN)

reference search32 citations

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Abstract: (Elsevier)

We try to determine light quark masses by considering sum rules for the vacuum expectation value of the time-ordered correlation function of two divergences of the axial vector current. The evaluation is carried out at momenta high enough for the non-perturbative contributions to be negligible. We find that the average mass of the up and down quark at a momentum of 1 GeV lies between 3.3 and 7.9 MeV while that for the strange quark lies between 84 and 212 MeV. The ranges of values reflect predominantly the uncertainty in the absorptive part in the low energy region (⪅1.7 GeV).

QUANTUM CHROMODYNAMICS
QUARK: MASS
MASS: QUARK
CURRENT: AXIAL-VECTOR
CORRELATION FUNCTION
SUM RULE: FINITE ENERGY
up
down
strangeness
RENORMALIZATION: REGULARIZATION

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Figures(0)

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