Unraveling the final-state interactions and correlations inside high-multiplicity jets at LHC
Bibliographic record
Abstract
Recent CMS measurements on high-multiplicity jets have revealed intriguing near-side long-range correlations in two-particle correlations within jets containing over 80 charged tracks. These structures suggest the potential existence of final-state interactions beyond those considered in current parton shower programs. In this study, we investigate three mechanisms that may become significant when the phase-space density of particles becomes high: twoto- two partonic rescattering, two-to-one partonic fusion, and hadronic rescattering. These processes are implemented at the end of the PYTHIA8 parton shower. We pay particular attention to modeling the spacetime evolution of partons and tracking the color flow during their interactions. Our analysis explores how these effects influence particle correlations in high-multiplicity jet events, offering insights into the underlying dynamics and providing potential directions for improving theoretical models in this regime.
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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 | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| 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".