The QCD phase diagram for external magnetic fields

Bali GS, Bruckmann F, Endrödi G, Fodor Z, Katz SD, Krieg S, Schäfer A, Szabó KK (2012)
Journal of High Energy Physics 2012(2): 44.

Zeitschriftenaufsatz | Veröffentlicht | Englisch
 
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Autor*in
Bali, G. S.; Bruckmann, F.; Endrödi, GergelyUniBi; Fodor, Z.; Katz, S. D.; Krieg, S.; Schäfer, A.; Szabó, K. K.
Abstract / Bemerkung
The effect of an external (electro)magnetic field on the finite temperature transition of QCD is studied. We generate configurations at various values of the quantized magnetic flux with N f  = 2 + 1 flavors of stout smeared staggered quarks, with physical masses. Thermodynamic observables including the chiral condensate and susceptibility, and the strange quark number susceptibility are measured as functions of the field strength. We perform the renormalization of the studied observables and extrapolate the results to the continuum limit using N t  = 6, 8 and 10 lattices. We also check for finite volume effects using various lattice volumes. We find from all of our observables that the transition temperature T c significantly decreases with increasing magnetic field. This is in conflict with various model calculations that predict an increasing T c (B). From a finite volume scaling analysis we find that the analytic crossover that is present at B = 0 persists up to our largest magnetic fields eB ≈ 1 GeV2, and that the transition strength increases mildly up to this eB ≈ 1 GeV2.
Erscheinungsjahr
2012
Zeitschriftentitel
Journal of High Energy Physics
Band
2012
Ausgabe
2
Art.-Nr.
44
eISSN
1029-8479
Page URI
https://pub.uni-bielefeld.de/record/2955764

Zitieren

Bali GS, Bruckmann F, Endrödi G, et al. The QCD phase diagram for external magnetic fields. Journal of High Energy Physics. 2012;2012(2): 44.
Bali, G. S., Bruckmann, F., Endrödi, G., Fodor, Z., Katz, S. D., Krieg, S., Schäfer, A., et al. (2012). The QCD phase diagram for external magnetic fields. Journal of High Energy Physics, 2012(2), 44. https://doi.org/10.1007/JHEP02(2012)044
Bali, G. S., Bruckmann, F., Endrödi, G., Fodor, Z., Katz, S. D., Krieg, S., Schäfer, A., and Szabó, K. K. (2012). The QCD phase diagram for external magnetic fields. Journal of High Energy Physics 2012:44.
Bali, G.S., et al., 2012. The QCD phase diagram for external magnetic fields. Journal of High Energy Physics, 2012(2): 44.
G.S. Bali, et al., “The QCD phase diagram for external magnetic fields”, Journal of High Energy Physics, vol. 2012, 2012, : 44.
Bali, G.S., Bruckmann, F., Endrödi, G., Fodor, Z., Katz, S.D., Krieg, S., Schäfer, A., Szabó, K.K.: The QCD phase diagram for external magnetic fields. Journal of High Energy Physics. 2012, : 44 (2012).
Bali, G. S., Bruckmann, F., Endrödi, Gergely, Fodor, Z., Katz, S. D., Krieg, S., Schäfer, A., and Szabó, K. K. “The QCD phase diagram for external magnetic fields”. Journal of High Energy Physics 2012.2 (2012): 44.

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