scholarly journals Short strings and gluon propagator in the infrared region

2000 ◽  
Vol 83-84 ◽  
pp. 470-475
Author(s):  
M.N. Chernodub ◽  
F.V. Gubarev ◽  
M.I. Polikarpov ◽  
V.I. Zakharov
Keyword(s):  
Gluon Propagator ◽  
Infrared Region

CONFINING TIME-LIKE GLUON AND CONFINED SPATIAL GLUONS IN COULOMB GAUGE QCD

2008 ◽  
Vol 23 (27n30) ◽  
pp. 2352-2355 ◽  
Author(s):  
Y. NAKAGAWA ◽  
A. NAKAMURA ◽  
T. SAITO ◽  
H. TOKI
Keyword(s):  
Gluon Propagator ◽  
Infrared Region ◽  
Coulomb Gauge ◽  
Degree Of Freedom ◽  
Ghost Propagator ◽  
Equal Time ◽  
Lattice Gauge ◽  
Transverse Gluon ◽  
Infrared Limit

We investigate the Gribov-Zwanziger scenario in Coulomb gauge QCD using a SU(3) quenched lattice gauge simulation. The ghost propagator diverges in the infrared limit stronger than the free ghost propagator, and the ghost degree of freedom plays a central role in the confinement mechanism in the Coulomb gauge. The infrared divergent ghost dressing function results in the confining color-Coulomb instantaneous interaction. The equal-time transverse gluon propagator is suppressed in the infrared region. Therefore, in the Coulomb gauge, the instantaneous interaction mediated by time-like gluons is responsible for the confining force, and the would-be physical gluons are confined in hadrons.

Unquenched Effects and Quark Mass Dependence of Lattice Gluon Propagator in Infrared Region

2008 ◽  
Vol 50 (1) ◽  
pp. 125-128 ◽  
Author(s):  
Zhang Yan-Bin ◽  
Ping Jia-Lun ◽  
Lü Xiao-Fu ◽  
Zong Hong-Shi
Keyword(s):  
Quark Mass ◽  
Gluon Propagator ◽  
Infrared Region ◽  
Mass Dependence ◽  
Quark Mass Dependence

scholarly journals Gluon propagator in the infrared region

1998 ◽  
Vol 58 (3) ◽  
Author(s):  
Derek B. Leinweber ◽  
Jon Ivar Skullerud ◽  
Anthony G. Williams ◽  
Claudio Parrinello
Keyword(s):  
Gluon Propagator ◽  
Infrared Region

scholarly journals A DYNAMICAL GLUON MASS SOLUTION IN MANDELSTAM'S APPROXIMATION

2005 ◽  
Vol 20 (32) ◽  
pp. 7613-7632 ◽  
Author(s):  
A. C. AGUILAR ◽  
A. A. NATALE
Keyword(s):  
Gluon Propagator ◽  
Asymptotic Expression ◽  
Full Range ◽  
Infrared Region ◽  
Landau Gauge ◽  
Dyson Equation ◽  
Renormalization Procedure ◽  
Light Cone Gauge ◽  
Gluon Mass ◽  
The One

We discuss the pure gauge Schwinger–Dyson equation for the gluon propagator in the Landau gauge within an approximation proposed by Mandelstam many years ago. We show that a dynamical gluon mass arises as a solution. This solution is obtained numerically in the full range of momenta that we have considered without the introduction of any ansatz or asymptotic expression in the infrared region. The vertex function that we use follows a prescription formulated by Cornwall to determine the existence of a dynamical gluon mass in the light cone gauge. The renormalization procedure differs from the one proposed by Mandelstam and allows for the possibility of a dynamical gluon mass. Some of the properties of this solution, such as its dependence on Λ QCD and its perturbative scaling behavior are also discussed.

Note on the spectral classification of carbon stars in the photographic infrared region

1966 ◽  
Vol 24 ◽  
pp. 21-23
Author(s):  
Y. Fujita
Keyword(s):  
Infrared Region ◽  
Spectral Classification ◽  
Carbon Stars

We have investigated the spectrograms (dispersion: 8Å/mm) in the photographic infrared region fromλ7500 toλ9000 of some carbon stars obtained by the coudé spectrograph of the 74-inch reflector attached to the Okayama Astrophysical Observatory. The names of the stars investigated are listed in Table 1.

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