Baryon asymmetry, dark matter, and quantum chromodynamics
Bibliographic record
Abstract
We propose a novel scenario to explain the observed cosmological asymmetry between matter and antimatter, based on nonperturbative QCD physics. This scenario relies on a mechanism of separation of quarks and antiquarks in two coexisting phases at the end of the cosmological QCD phase transition: ordinary hadrons (and antihadrons), along with massive lumps (and antilumps) of novel color superconducting phase. The latter would serve as the cosmological cold dark matter. In certain conditions the separation of charge is $C$ and $CP$ asymmetric and can leave a net excess of hadrons over antihadrons in the conventional phase, even if the visible universe is globally baryon symmetric $B=0$. In this case an equal, but negative, overall baryon charge must be hidden in the lumps of novel phase. Because of the small volume occupied by these dense lumps/antilumps of color superconducting phase and the specific features of their interaction with normal matter in hadronic phase, this scenario does not contradict the current phenomenological constrains on presence of antimatter in the visible universe. Moreover, in this scenario the observed cosmological ratio ${\ensuremath{\Omega}}_{\mathrm{D}\mathrm{M}}\ensuremath{\sim}{\ensuremath{\Omega}}_{B}$ within an order of magnitude finds a natural explanation, as both contributions to $\ensuremath{\Omega}$ originated from the same physics during the QCD phase transition. The baryon to entropy ratio ${n}_{B}/{n}_{\ensuremath{\gamma}}\ensuremath{\sim}{10}^{\ensuremath{-}10}$ would also be a natural outcome, fixed by the temperature ${T}_{f}\ensuremath{\lesssim}{T}_{\mathrm{Q}\mathrm{C}\mathrm{D}}$ at which the separation of phases is completed.
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How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.001 | 0.000 |
| Meta-epidemiology (narrow) | 0.001 | 0.001 |
| Meta-epidemiology (broad) | 0.002 | 0.000 |
| Bibliometrics | 0.000 | 0.001 |
| Science and technology studies | 0.001 | 0.001 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.001 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".