scholarly journals Gauge-invariant screening masses and static quark free energies in Nf=2+1 QCD at nonzero baryon density

2018 ◽  
Vol 97 (5) ◽  
Author(s):  
Michele Andreoli ◽  
Claudio Bonati ◽  
Massimo D’Elia ◽  
Michele Mesiti ◽  
Francesco Negro ◽  
...  
Keyword(s):  
Baryon Density ◽  
Free Energies ◽  
Gauge Invariant ◽  
Static Quark

A CALCULATION OF THE MAGNETIC MOMENT OF THE Δ++

1993 ◽  
Vol 08 (34) ◽  
pp. 3283-3290
Author(s):  
MILTON DEAN SLAUGHTER
Keyword(s):  
Quark Model ◽  
Magnetic Moment ◽  
Broken Symmetry ◽  
Flavor Symmetry ◽  
Perturbative Calculation ◽  
Gauge Invariant ◽  
Equal Time ◽  
Asymptotic Level ◽  
Equal Time Commutation ◽  
Static Quark

A fully relativistic, gauge-invariant, and non-perturbative calculation of the Δ++ magnetic moment, μΔ++, is made using equal-time commutation relations (ETCRs) and the dynamical concepts of asymptotic SU F(2) flavor symmetry and asymptotic level realization. Physical masses of the Δ and nucleon are used in this broken symmetry calculation. It is found that μΔ++=2.04μp, where μp is the proton magnetic moment. This result is very similar to that obtained by using SU(6) ⊗ O(3) symmetry or the static quark model.

scholarly journals COSMOLOGICAL BARYOGENESIS IN SUPERSTRING MODELS WITH STABLE PROTONS

1986 ◽  
Vol 01 (06) ◽  
pp. 389-396 ◽  
Author(s):  
B.A. CAMPBELL ◽  
J. ELLIS ◽  
D.V. NANOPOULOS ◽  
K.A. OLIVE
Keyword(s):  
Effective Action ◽  
Scalar Fields ◽  
Baryon Density ◽  
Low Energy ◽  
Expectation Values ◽  
Gauge Invariant ◽  
Energy Models

We discuss cosmological baryogenesis in phenomenological low-energy models inspired by the superstring which have an unobservably long baryon lifetime. The Affleck-Dine mechanism of baryogenesis in a cold (≲104 GeV ) universe is shown to be feasible, with a large baryon density being produced by the decays of large expectation values for squark and slepton fields after inflation. We catalogue the gauge-invariant quartic scalar operators in the low-energy effective action which could appear once supersymmetry is broken, show that the D-terms in the potential can vanish, and discuss the possibility that the F-terms have flat directions allowing large values for these scalar fields.

scholarly journals The static quark potential from the gauge invariant Abelian decomposition

2014 ◽  
Vol 729 ◽  
pp. 192-198 ◽  
Author(s):  
Nigel Cundy ◽  
Y.M. Cho ◽  
Weonjong Lee ◽  
Jaehoon Leem
Keyword(s):  
Gauge Invariant ◽  
Abelian Decomposition ◽  
Quark Potential ◽  
Static Quark

scholarly journals Application of Fixed Scale Approach to Static Quark Free Energies in Quenched and 2 + 1 Flavor Lattice QCD with Improved Wilson Quark Action

2012 ◽  
Vol 128 (5) ◽  
pp. 955-970 ◽  
Author(s):  
Y. Maezawa ◽  
T. Umeda ◽  
S. Aoki ◽  
S. Ejiri ◽  
T. Hatsuda ◽  
...  
Keyword(s):  
Lattice Qcd ◽  
Free Energies ◽  
Static Quark

scholarly journals Static quark free energies at finite temperature

2008 ◽  
Author(s):  
Sandor D. Katz ◽  
Zoltan Fodor ◽  
Antal Jakovac ◽  
Kalman Szabo
Keyword(s):  
Finite Temperature ◽  
Free Energies ◽  
Static Quark
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