A nonflow subtraction framework for m-particle cumulants is developed and tested in HIJING simulations for O+O and d+Au collisions.
Observation of long-range near-side angular correlations in proton-lead collisions at the LHC
10 Pith papers cite this work, alongside 716 external citations. Polarity classification is still indexing.
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abstract
Results on two-particle angular correlations for charged particles emitted in pPb collisions at a nucleon-nucleon center-of-mass energy of 5.02 TeV are presented. The analysis uses two million collisions collected with the CMS detector at the LHC. The correlations are studied over a broad range of pseudorapidity, eta, and full azimuth, phi, as a function of charged particle multiplicity and particle transverse momentum, pt. In high-multiplicity events, a long-range (2 < abs(Delta(eta)) < 4), near-side (Delta(phi) approximately 0) structure emerges in the two-particle Delta(eta)-Delta(phi) correlation functions. This is the first observation of such correlations in proton-nucleus collisions, resembling the ridge-like correlations seen in high-multiplicity pp collisions at sqrt(s) = 7 TeV and in AA collisions over a broad range of center-of-mass energies. The correlation strength exhibits a pronounced maximum in the range of pt = 1-1.5 GeV and an approximately linear increase with charged particle multiplicity for high-multiplicity events. These observations are qualitatively similar to those in pp collisions when selecting the same observed particle multiplicity, while the overall strength of the correlations is significantly larger in pPb collisions.
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First measurement of the nuclear modification factor R_AA in OO collisions at 5.36 TeV shows suppression with a minimum of 0.69 at p_T around 6 GeV, favoring models with parton energy loss.
Bayesian constraints on early-time jet quenching from large collision systems yield predictions of measurable energy loss in oxygen-oxygen collisions.
STAR reports 20% suppression of recoiling hadrons and jets in high-event-activity O+O collisions at 200 GeV, with a measured 0.7 GeV/c pT shift for large-radius jets, providing evidence for jet quenching in small systems.
A new RTA form with counter-terms yields species-dependent first-order viscous corrections that modify light-hadron yields and K/π, p/π ratios in p-Pb and Pb-Pb collisions.
A time-dependent Schrödinger equation model reproduces suppression of Υ(nS)/Υ(1S) and ψ(2S)/J/ψ yield ratios versus multiplicity in p-Pb collisions at 8.16 TeV, supporting transient hot QCD medium in small systems.
A conditional probability framework derives Maxwell-Boltzmann, Bose-Einstein and Fermi-Dirac statistics plus conservation-induced covariances from saddle-point marginals, then uses orthogonal projections to isolate conservation effects in PYTHIA-simulated p+Pb events.
AMPT model calculations indicate that forward-backward asymmetry in D0 meson RpPb and v2 in 8.16 TeV p-Pb collisions arises from initial-state cold nuclear effects and final-state partonic interactions, with coalescence-fragmentation competition shaping the pT and rapidity dependence, suggesting par
MC-CGC simulations with rcBK evolution favor HERA-tuned MV^γ and MV^e initial conditions for LHCb forward hadron data, show kT factorization outperforming DHJ at mid-rapidity, and provide predictions for ALICE FoCal neutral mesons and jets.
CMS measures V_nΔ in pPb events at √s_NN = 8.16 TeV as a function of forward rapidity gap width, p_T, and multiplicity in γPb and IP Pb enriched samples, comparing to prior pp, pPb, and γp data plus event generators.
citing papers explorer
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Nonflow Subtraction Beyond Two-Particle Correlations
A nonflow subtraction framework for m-particle cumulants is developed and tested in HIJING simulations for O+O and d+Au collisions.
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Observation of suppressed charged-particle production in ultrarelativistic oxygen-oxygen collisions
First measurement of the nuclear modification factor R_AA in OO collisions at 5.36 TeV shows suppression with a minimum of 0.69 at p_T around 6 GeV, favoring models with parton energy loss.
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Bayesian Constraints on Pre-Equilibrium Jet Quenching and Predictions for Oxygen Collisions
Bayesian constraints on early-time jet quenching from large collision systems yield predictions of measurable energy loss in oxygen-oxygen collisions.
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Measurement of jet quenching in O+O collisions at $\sqrt{s_\mathrm{NN}}=200$ GeV by the STAR experiment at RHIC
STAR reports 20% suppression of recoiling hadrons and jets in high-event-activity O+O collisions at 200 GeV, with a measured 0.7 GeV/c pT shift for large-radius jets, providing evidence for jet quenching in small systems.
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Species-dependent viscous corrections at particlization: A novel relaxation time approximation approach
A new RTA form with counter-terms yields species-dependent first-order viscous corrections that modify light-hadron yields and K/π, p/π ratios in p-Pb and Pb-Pb collisions.
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Probing hot QCD medium with heavy quarkonium in small and large collision systems
A time-dependent Schrödinger equation model reproduces suppression of Υ(nS)/Υ(1S) and ψ(2S)/J/ψ yield ratios versus multiplicity in p-Pb collisions at 8.16 TeV, supporting transient hot QCD medium in small systems.
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Equilibrium Statistics as Conditional Laws and Conservation-Induced Correlations
A conditional probability framework derives Maxwell-Boltzmann, Bose-Einstein and Fermi-Dirac statistics plus conservation-induced covariances from saddle-point marginals, then uses orthogonal projections to isolate conservation effects in PYTHIA-simulated p+Pb events.
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Investigating forward-backward asymmetry in D-meson production and anisotropic flow in p-Pb collisions at the LHC
AMPT model calculations indicate that forward-backward asymmetry in D0 meson RpPb and v2 in 8.16 TeV p-Pb collisions arises from initial-state cold nuclear effects and final-state partonic interactions, with coalescence-fragmentation competition shaping the pT and rapidity dependence, suggesting par
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Forward hadron production in pp collisions at LHC energies from an event generator based on the color glass condensate framework
MC-CGC simulations with rcBK evolution favor HERA-tuned MV^γ and MV^e initial conditions for LHCb forward hadron data, show kT factorization outperforming DHJ at mid-rapidity, and provide predictions for ALICE FoCal neutral mesons and jets.
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Dependence of two-particle azimuthal correlations on the forward rapidity gap width in pPb collisions at $\sqrt{s_\mathrm{NN}}$ = 8.16 TeV
CMS measures V_nΔ in pPb events at √s_NN = 8.16 TeV as a function of forward rapidity gap width, p_T, and multiplicity in γPb and IP Pb enriched samples, comparing to prior pp, pPb, and γp data plus event generators.