Discovering partonic rescattering in light nucleus collisions

Abstract

We demonstrate that oxygen-oxygen (OO) collisions at the LHC provide unprecedented sensitivity to parton energy loss in a system whose size is comparable to those created in very peripheral heavy-ion collisions. With leading and next-to-leading order calculations of nuclear modification factors, we show that the baseline in the absence of partonic rescattering is known with up to 2% theoretical accuracy in inclusive OO collisions. Surprisingly, a $Z$-boson normalized nuclear modification factor does not lead to higher theoretical accuracy within current uncertainties of nuclear parton distribution functions. We study a broad range of parton energy loss models and we find that the expected signal of partonic rescattering can be disentangled from the baseline by measuring charged hadron spectra in the range $20\text{GeV}<p_T<100\text{GeV}$

arXiv comment8 pages, 7 figures, see the companion paper "Predicting parton energy loss in small collision systems"; v2: added NLO hadron baseline calculations, small changes, published version

References in corpus (47)

• LHAPDF6: parton density access in the LHC precision era
• Glauber Modeling in High Energy Nuclear Collisions
• New parton distribution functions from a global analysis of quantum chromodynamics
• Radiative energy loss and $p_{\perp }$-broadening of high energy partons in nuclei
• Radiative energy loss of high energy quarks and gluons in a finite volume quark-gluon plasma
• Suppression of Hadrons with Large Transverse Momentum in Central Au+Au Collisions at $sqrt {s sub {sub {NN}}}_ = 130 GeV
• Fully quantum treatment of the Landau--Pomeranchuk--Migdal effect in QED and QCD
• Reaction Operator Approach to Non-Abelian Energy Loss
• Enhanced production of multi-strange hadrons in high-multiplicity proton-proton collisions
• Radiative energy loss of high energy quarks in finite-size nuclear matter and quark-gluon plasma
• Gluon Radiation off Hard Quarks in a Nuclear Environment: Opacity Expansion
• Centrality dependence of high pT hadron suppression in Au+Au collisions at sqrt(sNN)=130 GeV
• Multiple Parton Scattering in Nuclei: Parton Energy Loss
• EPPS16: Nuclear parton distributions with LHC data
• Suppression of charged particle production at large transverse momentum in central Pb-Pb collisions at $\sqrt{s_{\mathrm{NN}}}=2.76$ TeV
• Study of high-pT charged particle suppression in PbPb compared to pp collisions at sqrt(sNN)=2.76 TeV
• Fragmentation Functions for Pions, Kaons, and Protons at Next-to-Leading Order
• Evidence for collectivity in pp collisions at the LHC
• K${}_{\mathrm{S}}^0$ and $\mathrm{\Lambda }$ production in Pb-Pb collisions at $\sqrt{s_{\mathrm{NN}}}$ = 2.76 TeV
• Multi-strange baryon production at mid-rapidity in Pb-Pb collisions at $\sqrt{s_{\mathrm{NN}}}$ = 2.76 TeV
• Evidence for collective multi-particle correlations in pPb collisions
• MARTINI: An event generator for relativistic heavy-ion collisions
• Jet pair production in POWHEG
• Direct photon production in Pb-Pb collisions at $\sqrt{s_\rm{NN}}$ = 2.76 TeV
• Charged-particle nuclear modification factors in PbPb and pPb collisions at sqrt(s[NN]) = 5.02 TeV
• Multi-particle azimuthal correlations in p-Pb and Pb-Pb collisions at the CERN Large Hadron Collider
• NNLO QCD predictions for single jet inclusive production at the LHC
• Comparison of Jet Quenching Formalisms for a Quark-Gluon Plasma "Brick"
• Next-to-Leading Order Fragmentation Functions for Pions and Kaons
• Measurement of the nuclear modification factor for inclusive jets in Pb+Pb collisions at $\sqrt{s_{\mathrm{NN}}}=5.02$ TeV with the ATLAS detector
• JEWEL 2.0.0 - Directions for Use
• Measurement of charged-particle spectra in Pb+Pb collisions at $\sqrt{s_{\mathsf{NN}}}=2.76$ TeV with the ATLAS detector at the LHC
• Centrality and rapidity dependence of inclusive jet production in $\sqrt{s_{\mathrm{NN}}}=5.02$ TeV proton-lead collisions with the ATLAS detector
• PDF reweighting in the Hessian matrix approach
• Measurement of multi-particle azimuthal correlations in $pp$, $p$+Pb and low-multiplicity Pb+Pb collisions with the ATLAS detector
• Measurement of the cross section for inclusive isolated-photon production in $pp$ collisions at $\sqrt{s}=13$ TeV using the ATLAS detector
• Towards a Precise Parton Luminosity Determination at the CERN LHC
• Luminosity monitors at the LHC
• Measurement of light-by-light scattering and search for axion-like particles with 2.2 nb${}^{-1}$ of Pb+Pb data with the ATLAS detector
• Absence of jet quenching in peripheral nucleus-nucleus collisions
• Predicting parton energy loss in small collision systems
• Non-quadratic improved Hessian PDF reweighting and application to CMS dijet measurements at 5.02 TeV
• Constraining gluon distributions in nuclei using dijets in proton-proton and proton-lead collisions at $\sqrt{s_{{}_{\mathrm{NN}}}}=$ 5.02 TeV
• Charged-particle nuclear modification factors in XeXe collisions at $\sqrt{s_{\mathrm{NN}}}$ = 5.44 TeV
• QCD Challenges from pp to A-A Collisions
• Calculations for deep inelastic scattering using fast interpolation grid techniques at NNLO in QCD and the extraction of ${\alpha }_s$ from HERA data
• Shadowing in inelastic nucleon-nucleon cross section?

Cited by in corpus (35)

• The ALICE experiment: a journey through QCD
• Heavy quarks and jets as probes of the QGP
• Determining the jet transport coefficient $\hat{q}$ from inclusive hadron suppression measurements using Bayesian parameter estimation
• Predicting parton energy loss in small collision systems
• Cone size dependence of jet suppression in heavy-ion collisions
• Jet radiation in a longitudinally expanding medium
• Medium Response and Jet-Hadron Correlations in Relativistic Heavy-Ion Collisions
• Enhancement of baryon-to-meson ratios around jets as a signature of medium response
• Scaling behaviors of heavy flavor meson suppression and flow in different nuclear collision systems at the LHC
• Strong constraints on jet quenching in centrality-dependent $p$+Pb collisions at 5.02 TeV from ATLAS
• Multi-partonic medium induced cascades in expanding media
• Predictions for the sPHENIX physics program
• Characterizing nuclear modification effects in high-energy O-O collisions at energies available at the CERN Large Hadron Collider: A transport model perspective
• Jet quenching parameter in QCD kinetic theory
• Light-nuclei gluons from dijet production in proton-oxygen collisions
• Contribution to differential ${\pi }^0$ and ${\gamma }_{\mathrm{dir}}$ modification in small systems from color fluctuation effects
• Search for jet quenching effects in high-multiplicity pp collisions at $\sqrt{s}$ = 13 TeV via di-jet acoplanarity
• No-quenching baseline for energy loss signals in oxygen-oxygen collisions
• An Experiment for Electron-Hadron Scattering at the LHC
• Ratios of jet and hadron spectra at LHC energies: measuring high-$p_T$ suppression without a $pp$ reference
• Glauber predictions for oxygen and neon collisions at energies available at the LHC
• Bayesian Constraints on Pre-Equilibrium Jet Quenching and Predictions for Oxygen Collisions
• Observation of suppressed charged-particle production in ultrarelativistic oxygen-oxygen collisions
• Selection bias effects on high-$p_{\mathrm{T}}$ yield and correlation measurements in Oxygen+Oxygen collisions
• In-medium gluon radiation spectrum with all-order resummation of multiple scatterings in longitudinally evolving media
• A unified description of small, peripheral, and large system suppression data from pQCD
• Statistical analysis of pQCD energy loss across system size, flavor, $\sqrt{s_{NN}}$, and $p_T$
• Impact of scale, nuclear PDF and temperature variations on the interpretation of medium-modified jet production data from the LHC
• Opportunities of OO and $p$O collisions at the LHC
• Collisional and radiative energy loss in small systems
• Production of leptons from decay of heavy-flavor hadrons in high-energy nuclear collisions
• Studying the QGP with Jets at the LHC and RHIC
• Exploring system size dependence of jet modification in heavy-ion collisions
• Multiplicity-dependent jet modification from di-hadron correlations in pp collisions at $\sqrt{s}=13$ TeV
• System-size dependence of charged-particle suppression in ultrarelativistic nucleus-nucleus collisions