Soft and Hard Probes of QCD Topological Structures in Relativistic Heavy-Ion Collisions by Shuzhe Shi

Author:Shuzhe Shi
Language: eng
Format: epub, pdf
ISBN: 9783030254827
Publisher: Springer International Publishing

(5.9)

2. fluctuating-B scheme that while magnetic field decays in time in the same way as previous scheme, it has nontrivial spatial dependence:

(5.10)

taking lifetime τ B = 0.6 fm in both schemes and as in smooth-AVFD simulation. In latter scheme, the spatial profile is computed from proton distribution of the corresponding event:

(5.11)

where B t (B p) represents the magnetic field generated by a proton in the target (projectile), with center at (x i, y i, z i) when t = 0. Also, we take into account the finite size of the proton, and assume its electric charge density as a Gaussian distribution with σ = 0.5 fm, corresponding to the root-mean-square radius of 〈r 2〉1∕2 = 0.87 fm.2 With such setup, magnetic field generated by a given proton could be computed as

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