Turning up and down strong magnetic fields in relativistic nuclear collisions
Résumé
I show that the average transverse momentum, 〈pt〉 , of the hadrons emitted in relativistic nuclear collisions can be used as a “knob” to control the strength of the magnetic field induced by the spectator and the participant protons over the overlap region. I thus argue that any observable sensitive to this magnetic field is nontrivially correlated with 〈pt〉 at a given collision centrality.
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