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.
Tool reference
STARlight: A Monte Carlo simulation program for ultra-peripheral collisions of relativistic ions
Tool reference. 80% of classified Pith citations use this work as a method, library, or software dependency, not as a substantive claim.
8
Pith papers citing it
Method reference
80% of classified citations
abstract
Ultra-peripheral collisions (UPCs) have been a significant source of study at RHIC and the LHC. In these collisions, the two colliding nuclei interact electromagnetically, via two-photon or photonuclear interactions, but not hadronically; they effectively miss each other. Photonuclear interactions produce vector meson states or more general photonuclear final states, while two-photon interactions can produce lepton or meson pairs, or single mesons. In these interactions, the collision geometry plays a major role. We present a program, STARlight, that calculates the cross-sections for a variety of UPC final states and also creates, via Monte Carlo simulation, events for use in determining detector efficiency.
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method 4
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UNVERDICTED 8representative citing papers
First differential cross-sections for γγ→ττ in Pb+Pb collisions yield 95% CL intervals -0.057 < a_τ < 0.035 and |d_τ| < 2.7×10^{-16} e cm.
First measurement of γ+IP→jets cross-sections in 0n0n ultra-peripheral Pb+Pb collisions at 5.02 TeV, achieved by statistically separating photon-pomeron, photon-photon, and peripheral photonuclear contributions via template fits to minimum rapidity gap distributions.
Hadrons from ion electromagnetic dissociation break exclusivity conditions in ultraperipheral collisions, resolving tensions in exclusive muon-pair and coherent J/ψ measurements at the LHC.
ATLAS reports a 6 sigma observation that nuclear parton distribution modifications in photonuclear Pb+Pb collisions depend on impact parameter, shown by differing cross-section shapes versus x+ with and without forward neutron emission.
ATLAS reports differential cross sections for coherent exclusive J/ψ → μ⁺μ⁻ in Pb+Pb ultraperipheral collisions at √s_NN=5.36 TeV, agreeing with models but in tension with prior Run 2 data at central rapidity.
Calculations of excitation functions, momentum spectra, and transparency ratios for χ_c1(1P) on 12C and 184W nuclei demonstrate sensitivity to different absorption cross-section scenarios, proposed for extraction via future CEBAF data.
ATLAS reports on its Run 3 software infrastructure for data management, workflows, databases, validation, and physics analysis tools at the LHC.
citing papers explorer
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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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Differential measurements of $\gamma\gamma\to\tau\tau$ and constraints on $\tau$-lepton electromagnetic moments in Pb+Pb collisions at $\sqrt{s_{_\text{NN}}} = 5.02$ TeV with ATLAS
First differential cross-sections for γγ→ττ in Pb+Pb collisions yield 95% CL intervals -0.057 < a_τ < 0.035 and |d_τ| < 2.7×10^{-16} e cm.
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Measurement of jet photoproduction in ultra-peripheral Pb+Pb collisions without nuclear breakup at $\sqrt{s_\mathrm{NN}} = 5.02$ TeV with the ATLAS detector
First measurement of γ+IP→jets cross-sections in 0n0n ultra-peripheral Pb+Pb collisions at 5.02 TeV, achieved by statistically separating photon-pomeron, photon-photon, and peripheral photonuclear contributions via template fits to minimum rapidity gap distributions.
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A First Account of the Impact of Ion Electromagnetic Dissociation on Event Exclusivity in Ultraperipheral LHC Collisions
Hadrons from ion electromagnetic dissociation break exclusivity conditions in ultraperipheral collisions, resolving tensions in exclusive muon-pair and coherent J/ψ measurements at the LHC.
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Observation of impact parameter dependent modifications of nuclear parton distributions in photonuclear Pb+Pb collisions at $\sqrt{s_\mathrm{NN}} = 5.02$ TeV with the ATLAS detector
ATLAS reports a 6 sigma observation that nuclear parton distribution modifications in photonuclear Pb+Pb collisions depend on impact parameter, shown by differing cross-section shapes versus x+ with and without forward neutron emission.
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Measurement of coherent exclusive $J/\psi\to\mu^+\mu^-$ production in ultraperipheral Pb+Pb collisions at $\sqrt{s_{\textrm{NN}}}=5.36$ TeV with the ATLAS detector
ATLAS reports differential cross sections for coherent exclusive J/ψ → μ⁺μ⁻ in Pb+Pb ultraperipheral collisions at √s_NN=5.36 TeV, agreeing with models but in tension with prior Run 2 data at central rapidity.
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Absorption of 1$P$-wave heavy charmonium $\chi_{c1}(1P)$ in nuclei
Calculations of excitation functions, momentum spectra, and transparency ratios for χ_c1(1P) on 12C and 184W nuclei demonstrate sensitivity to different absorption cross-section scenarios, proposed for extraction via future CEBAF data.
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Software and computing for Run 3 of the ATLAS experiment at the LHC
ATLAS reports on its Run 3 software infrastructure for data management, workflows, databases, validation, and physics analysis tools at the LHC.