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Mapping the Electromagnetic Fields of Heavy-Ion Collisions with the Breit-Wheeler Process

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arxiv 2103.16623 v4 pith:7OBZEKQK submitted 2021-03-30 hep-ph nucl-ex

classification hep-phnucl-ex
keywords fieldscollisionselectromagneticheavy-ionbreit-wheelerprocessproduceddistribution
verification ladder T0 review T1 audit T2 compute T3 formal

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Ultra-relativistic heavy-ion collisions are expected to produce the strongest electromagnetic fields in the known Universe. These highly-Lorentz contracted fields can manifest themselves as linearly polarized quasi-real photons that can interact via the Breit-Wheeler process to produce lepton anti-lepton pairs. The energy and momentum distribution of the produced dileptons carry information about the strength and spatial distribution of the colliding fields. Recently it has been demonstrated that photons from these fields can interact even in heavy-ion collisions with hadronic overlap, providing a purely electromagnetic probe of the produced medium. In this review we discuss the recent theoretical progress and experimental advances for mapping the ultra-strong electromagnetic fields produced in heavy-ion collisions via measurement of the Breit-Wheeler process.

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Forward citations

Cited by 4 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Probing Quantum Numbers and Decay Branching Ratios of Exotic States via Entanglement-Enabled Spin Interference

    hep-ph 2026-06 unverdicted novelty 6.0 of 10

    Simulated spin-interference patterns in ρ(1450)→4π decays give a distinct azimuthal modulation for the π(1300)π channel, allowing its branching fraction to be extracted.

  2. Asymmetric muon-antimuon emission from $Z^0$ decays: a clear magnetometer in relativistic heavy-ion collisions

    hep-ph 2025-06 reject novelty 6.0 of 10

    A proposal that Z0 to mu+ mu- decays in a strong magnetic field produce negative v2 and harder antimuon pT, offering a potential early-field magnetometer.

  3. Screening rho-meson mass in the presence of strong magnetic fields

    hep-ph 2025-02 reject novelty 6.0 of 10

    The paper claims a first calculation of the rho-meson screening mass in strong magnetic fields, with two modes increasing with eB and one mode nearly constant.

  4. Strongly interacting matter in extreme magnetic fields

    nucl-th 2024-12 conditional novelty 2.0 of 10

    A state-of-the-art review of magnetic field effects in QCD and QED matter, covering meson properties, anomalous transport, effective models, the QCD phase diagram, and neutron stars.

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