Prediction of Cosmological Constant Λ in Veneziano Ghost Theory of QCD

Lijuan Zhou, Weixing Ma, Leonard S. Kisslinger

Department of Information and Computing Science, Guangxi University of Technology, Liu Zhou, China.
Department of Physics, Carnegie-Mellon University, Pittsburgh, USA.
nstitute of High Energy Physics, Chinese Academy of Sciences, Beijing, China.

DOI: 10.4236/jmp.2012.329151                

Abstract

Based on the Veneziano ghost theory of QCD, we estimate the cosmological constant Λ, which is related to the vacuum energy density, , by =8πG . In the recent Veneziano ghost theory is given by the absolute value of the product of the local quark condensate and quark current mass: =(2N_fH/m)*c|m_q＜0|:qq:|0>|.By solving Dyson-Schwinger Equations for a dressed quark propagator, we found the local quark condensate <0|:qq:|0>; -(235 MeV)³, the generally accepted value. The quark current mass is m_q 4.0 Mev. This gives the same result for as found by previous authors, which is somewhat larger than the observed value. However, when we make use of the nonlocal quark condensate, <0|:q(x)q(0):|0>=g(x)<0|:qq:|0>, with g(x) estimated from our previous work, we find Λ is in a good agreement with the observations.

Keywords

Cosmological Constant ; Veneziano Ghost Theory of QCD; Local Quark Vacuum Condensate; Nonlocal Quark Condensate; Quantum Chromodynamics-QCD

Conflicts of Interest

The authors declare no conflicts of interest.

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