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Manipulating strong electromagnetic fields with the average transverse momentum of relativistic nuclear collisions

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arxiv 2104.01890 v1 pith:3F7WEK4H submitted 2021-04-05 nucl-th hep-exhep-phnucl-ex

classification nucl-thhep-exhep-phnucl-ex
keywords magneticcollisionsfieldeventevent-by-eventhandlemomentumprovides
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abstract

We show that an event-shape engineering based on the mean transverse momentum of charged hadrons, $[p_t]$, provides an optimal handle on the strength of the magnetic field created in central heavy-ion collisions at high energy. This is established through quantitative evaluations of the correlation existing between the event-by-event magnetic field produced by the spectator protons in 5.02 TeV Pb+Pb collisions and the event-by-event $[p_t]$ at a given collision centrality. We argue that the event selection based on $[p_t]$ provides a better handle on the magnetic field than the more traditional selection based on the event ellipticities. Advantages brought by this new method for the experimental search of the chiral magnetic effect are discussed.

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Forward citations

Cited by 2 Pith papers

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

  1. Nuclear Physics Confronts Relativistic Collisions Of Isobars

    nucl-ex 2025-07 conditional novelty 5.0 of 10

    RHIC isobar data are explained by different shapes of 96Ru and 96Zr, with 96Zr showing a large octupole deformation, so nuclear structure uncertainty, not the magnetic field, dominates the observed ratios.

  2. 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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