QCD Vacuum Energy and the Cosmological Constant Derivation

These sources describe a theoretical framework connecting quantum chromodynamics QCD to the cosmological constant by analyzing how vacuum energy reacts to the presence of matter.
The author derives a dimensionless coupling constant denoted as alpha from nucleon sigma terms to quantify the shift in vacuum energy density at finite baryon densities.
By extending the Einstein-Hilbert action with this coupling and an elastic correction the research produces a closed-form expression for the cosmological constant that aligns closely with astronomical observations.
Independent N-body simulations and the QCD trace anomaly are used to verify the influence of nonlinear screening and the coherence of quark-gluon condensate shifts.
Furthermore the papers link this vacuum-matter coupling to the scalar quark content of nucleons which is essential for predicting dark matter detection cross sections.
Ultimately the work offers falsifiable predictions and lattice QCD benchmarks to test this reconciliation of particle physics scales with cosmological reality. Kriger B.
2026.
The cosmological constant as a QCD observable: derivation nonlinear screening and falsification.
Submitted to Physics Letters B PLB-D-26-00760.
Kriger B.
2026.
Density dependence of QCD vacuum energy from nucleon sigma terms.
Submitted to Progress of Theoretical and Experimental Physics March 19 2026.

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