Gouranga C. Nayak
University of Arizona
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Featured researches published by Gouranga C. Nayak.
Journal of High Energy Physics | 2013
Gouranga C. Nayak
A bstractConstant electric charge e satisfies the continuity equation ∂μjμ(x) = 0 where jμ(x) is the current density of the electron. However, the Yang-Mills color current density jμa(x) of the quark satisfies the equation Dμ[A]jμa(x) = 0 which is not a continuity equation (∂μjμa(x) ≠ 0) which implies that a color charge qa(t) of the quark is not constant but it is time dependent where a = 1,2, . . .8 are color indices. In this paper we derive general form of color potential produced by color charges of the quark. We find that the general form of the color potential produced by the color charges of the quark at rest is given by
European Physical Journal C | 2013
Gouranga C. Nayak
{\varPhi^a}(x)=A_0^a\left( {t,\mathrm{x}} \right)=\frac{{{q^b}\left( {t-\frac{r}{c}} \right)}}{r}{{\left[ {\frac{{\exp \left[ {g\int {dr\frac{{Q\left( {t-\frac{r}{c}} \right)}}{r}} } \right]-1}}{{g\int {dr\frac{{Q\left( {t-\frac{r}{c}} \right)}}{r}} }}} \right]}_{ab }}
Annals of Physics | 2010
Gouranga C. Nayak
where dr integration is an indefinite integration,
Annals of Physics | 2010
Gouranga C. Nayak
{Q_{ab }}\left( {{\tau_0}} \right)={f^{abd }}{q^d}\left( {{\tau_0}} \right),\;r=\left| {\overrightarrow{x}-\overrightarrow{X}\left( {{\tau_0}} \right)} \right|,{\tau_0}=t-\frac{r}{c}
Annals of Physics | 2009
Gouranga C. Nayak
is the retarded time, c is the speed of light,
Physics of Particles and Nuclei Letters | 2011
Gouranga C. Nayak
\overrightarrow{X}\left( {{\tau_0}} \right)
Journal of High Energy Physics | 2011
Gouranga C. Nayak
is the position of the quark at the retarded time and the repeated color indices b, d(= 1, 2, . . . 8) are summed. For constant color charge qa we reproduce the Coulomb-like potential
European Physical Journal C | 2009
Gouranga C. Nayak
{\varPhi^a}(x)=\frac{{{q^a}}}{r}
Physics of Particles and Nuclei Letters | 2016
Gouranga C. Nayak
which is consistent with the Maxwell theory where constant electric charge e produces the Coulomb potential
Journal of High Energy Physics | 2009
Gouranga C. Nayak
\varPhi (x)=\frac{e}{r}