Measurements of long-range azimuthal anisotropies and associated Fourier coefficients for <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:mi>p</mml:mi><mml:mi>p</mml:mi></mml:mrow></mml:math> collisions at <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:msqrt><mml:mi>s</mml:mi></mml:msqrt><mml:mo>=</mml:mo><mml:mn>5.02</mml:mn></mml:mrow></mml:math> and 13 TeV and <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:mi>p</mml:mi><mml:mo>+</mml:mo><mml:mtext>Pb</mml:mtext></mml:mrow></mml:math> collisions at <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:msqrt><mml:msub><mml:mi>s</mml:mi><mml:mi>NN</mml:mi></mml:msub></mml:msqrt><mml:mo>=</mml:mo><mml:mn>5.02</mml:mn></mml:mrow></mml:math> TeV with the ATLAS detector
Why this work is in the frame
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Bibliographic record
Abstract
ATLAS measurements of two-particle correlations are presented for $\sqrt{s}=5.02$ and 13 TeV $pp$ collisions and for $\sqrt{{s}_{\mathrm{NN}}}=5.02$ TeV $p+\text{Pb}$ collisions at the LHC. The correlation functions are measured as a function of relative azimuthal angle $\mathrm{\ensuremath{\Delta}}\ensuremath{\phi}$, and pseudorapidity separation $\mathrm{\ensuremath{\Delta}}\ensuremath{\eta}$, using charged particles detected within the pseudorapidity interval $|\ensuremath{\eta}|<2.5$. Azimuthal modulation in the long-range component of the correlation function, with $|\mathrm{\ensuremath{\Delta}}\ensuremath{\eta}|>2$, is studied using a template fitting procedure to remove a ``back-to-back'' contribution to the correlation function that primarily arises from hard-scattering processes. In addition to the elliptic, $\mathrm{cos}(2\mathrm{\ensuremath{\Delta}}\ensuremath{\phi})$, modulation observed in a previous measurement, the $pp$ correlation functions exhibit significant $\mathrm{cos}(3\mathrm{\ensuremath{\Delta}}\ensuremath{\phi})$ and $\mathrm{cos}(4\mathrm{\ensuremath{\Delta}}\ensuremath{\phi})$ modulation. The Fourier coefficients ${v}_{n,n}$ associated with the $\mathrm{cos}(n\mathrm{\ensuremath{\Delta}}\ensuremath{\phi})$ modulation of the correlation functions for $n=2--4$ are measured as a function of charged-particle multiplicity and charged-particle transverse momentum. The Fourier coefficients are observed to be compatible with $\mathrm{cos}(n\ensuremath{\phi})$ modulation of per-event single-particle azimuthal angle distributions. The single-particle Fourier coefficients ${v}_{n}$ are measured as a function of charged-particle multiplicity, and charged-particle transverse momentum for $n=2--4$. The integrated luminosities used in this analysis are, 64 ${\mathrm{nb}}^{\ensuremath{-}1}$ for the $\sqrt{s}=13$ TeV $pp$ data, 170 ${\mathrm{nb}}^{\ensuremath{-}1}$ for the $\sqrt{s}=5.02$ TeV $pp$ data, and 28 ${\mathrm{nb}}^{\ensuremath{-}1}$ for the $\sqrt{{s}_{\mathrm{NN}}}=5.02$ TeV $p+\text{Pb}$ data.
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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 | 0.009 | 0.009 |
| Meta-epidemiology (narrow) | 0.005 | 0.008 |
| Meta-epidemiology (broad) | 0.002 | 0.008 |
| Bibliometrics | 0.002 | 0.005 |
| Science and technology studies | 0.011 | 0.010 |
| Scholarly communication | 0.008 | 0.006 |
| Open science | 0.010 | 0.012 |
| Research integrity | 0.009 | 0.008 |
| Insufficient payload (model declined to judge) | 0.143 | 0.008 |
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 it