Abstract
We discuss the phenomenon of (inverse) magnetic catalysis for both the deconfinement and chiral transition. We discriminate between the hard and soft wall model, which we suitably generalize to include a magnetic field. Our findings show a critical deconfinement temperature going down, in contrast with the chiral restoration temperature growing with increasing magnetic field. This is at odds with contemporary lattice data, so the quest for a holographic QCD model capable of capturing inverse magnetic catalysis in the chiral sector remains open.
Highlights
The ongoing heavy ion collision programs (ALICE or RHIC) provide a fertile testing ground for novel experimental, phenomenological and theoretical features of strongly coupled QCD
Our findings show a critical deconfinement temperature going down, in contrast with the chiral restoration temperature growing with increasing magnetic field
This is at odds with contemporary lattice data, so the quest for a holographic QCD model capable of capturing inverse magnetic catalysis in the chiral sector remains open
Summary
The ongoing heavy ion collision programs (ALICE or RHIC) provide a fertile testing ground for novel experimental, phenomenological and theoretical features of strongly coupled QCD. For the chiral behaviour one intuitively expects the phenomenon of magnetic catalysis based on the dynamics of lower-dimensional systems [2]. Another powerful (analytical) tool to probe both static and dynamical questions in QCD is provided by the AdS/CFT [8] inspired description of strongly coupled gauge systems. The goal of this proceeding will be to employ a modified AdS/QCD (soft) wall model to investigate whether the magnetic lattice QCD predictions for both deconfinement and chiral phase transitions can be corroborated from holographic AdS/QCD. For details we refer to our original work [9]
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