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Universe 2017, 3(2), 43; doi:10.3390/universe3020043

Mirror QCD and Cosmological Constant

1
Department of Astronomy and Theoretical Physics, Lund University, SE-223 62 Lund, Sweden
2
Bogoliubov Laboratory of Theoretical Physics, Joint Institute for Nuclear Research, 141980 Dubna, Russia
*
Author to whom correspondence should be addressed.
Academic Editor: Lorenzo Iorio
Received: 19 December 2016 / Revised: 30 April 2017 / Accepted: 2 May 2017 / Published: 8 May 2017
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Abstract

An analog of Quantum Chromo Dynamics (QCD) sector known as mirror QCD (mQCD) can affect the cosmological evolution due to a non-trivial contribution to the Cosmological Constant analogous to that induced by the ground state in non-perturbative QCD. In this work, we explore a plausible hypothesis for trace anomalies cancellation between the usual QCD and mQCD. Such an anomaly cancellation between the two gauge theories, if it exists in Nature, would lead to a suppression or even elimination of their contributions to the Cosmological Constant. The trace anomaly compensation condition and the form of the non-perturbative mQCD coupling constant in the infrared limit have been proposed by analysing a partial non-perturbative solution of the Einstein–Yang-Mills equations of motion. View Full-Text
Keywords: QCD vacuum; mirror QCD; cosmological constant QCD vacuum; mirror QCD; cosmological constant
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Pasechnik, R.; Prokhorov, G.; Teryaev, O. Mirror QCD and Cosmological Constant. Universe 2017, 3, 43.

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