High Energy Physics - Phenomenology
[Submitted on 31 Oct 2016 (v1), last revised 9 Sep 2017 (this version, v2)]
Title:Delayed versus accelerated quarkonium formation in a magnetic field
View PDFAbstract:Formation time of heavy quarkonia in a homogeneous magnetic field is analyzed by using a phenomenological ansatz of the vector current correlator. Because the existence of a magnetic field mixes vector quarkonia ($J/\psi$, $\psi^\prime$) and their pseudoscalar partners ($\eta_c$, $\eta_c^\prime$), the properties of the quarkonia can be modified through such a spin mixing. This means that the formation time of quarkonia is also changed by the magnetic field. We show the formation time of vector quarkonia is delayed by an idealized constant magnetic field, where the formation time of the excited state becomes longer than that of the ground state. As a more realistic situation in heavy-ion collisions, effects by a time-dependent magnetic field are also discussed, where delayed formation of $J/\psi$ and $\psi^\prime$ and very early formation of $\eta_c$ and $\eta_c^\prime$ are found.
Submission history
From: Kei Suzuki [view email][v1] Mon, 31 Oct 2016 10:31:18 UTC (95 KB)
[v2] Sat, 9 Sep 2017 17:37:20 UTC (99 KB)
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