期刊
UNIVERSE
卷 3, 期 2, 页码 -出版社
MDPI
DOI: 10.3390/universe3020043
关键词
QCD vacuum; mirror QCD; cosmological constant
资金
- RFBR [14-01-00647]
- Swedish Research Council [621-2013-428]
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.
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