QCD chiral transition temperature in a Dyson-Schwinger-equation context

Blank, M.; Krassnigg, A.

doi:10.1103/physrevd.82.034006

Cited by 34 publications

(31 citation statements)

References 58 publications

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“…In this case we have in the light quark sector T χ = 128 MeV, whereas T d = 270 MeV according to the parametrization of the PL potential in the pure gauge sector. The value obtained for T χ is in the typical range found in the DSE approach [41]. The peak position of the chiral susceptibility in the strange quark sector does not coincide with the one in the light quark sector in this case.…”

Section: A Order Parameters For Chiral and Deconfinement Transitionmentioning

confidence: 55%

Width of the QCD transition in a Polyakov-loop Dyson-Schwinger equation model

et al. 2011

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We consider the pseudocritical temperatures for the chiral and deconfinement transitions within a Polyakov-loop Dyson-Schwinger equation approach which employs a nonlocal rank-2 separable model for the effective gluon propagator. These pseudocritical temperatures differ by a factor of two when the quark and gluon sectors are considered separately, but get synchronized and become coincident when their coupling is switched on. The coupling of the Polyakov-loop to the chiral quark dynamics narrows the temperature region of the QCD transition in which chiral symmetry and deconfinement is established. We investigate the effect of rescaling the parameter T0 in the Polyakov-loop potential on the QCD transition for both the logarithmic and polynomial forms of the potential. While the critical temperatures vary in a similar way, the width of the transition is stronger affected for the logarithmic potential. For this potential the character of the transition changes from crossover to a first order one when T0 < 210 MeV, but it remains crossover in the whole range of relevant T0 values for the polynomial form.

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Section: A Order Parameters For Chiral and Deconfinement Transitionmentioning

confidence: 55%

Width of the QCD transition in a Polyakov-loop Dyson-Schwinger equation model

et al. 2011

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“…From the theory point of view, one needs a thorough understanding of nonperturbative QCD, which is sought via different approaches such as the traditional quark model in relativistic forms [3][4][5][6][7][8][9][10][11], effective field theories [12][13][14][15], QCD sum rules (QSRs) [16][17][18][19], latticeregularized QCD [20][21][22][23][24], and covariant approaches to QCD bound states at various levels of sophistication and aspects pertaining thereto [25][26][27][28][29][30][31][32][33][34][35][36][37][38][39][40][41].…”

Section: Introductionmentioning

confidence: 99%

Aspects of open-flavour mesons in a comprehensive DSBSE study

et al. 2017

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Open-flavour meson studies are the necessary completion to any comprehensive investigation of quarkonia. We extend recent studies of quarkonia in the Dyson-Schwinger-Bethe-Salpeter-equation approach to explore their results for all possible flavour combinations. Within the inherent limitations of the setup, we present the most comprehensive results for meson masses and leptonic decay constants currently available and put them in perspective with respect to experiment and other approaches.

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“…This model interaction has been used over the past years to successfully describe hadron properties, most prominently but not limited to the ones of pseudoscalar and vector mesons, such as electromagnetic properties [9,[48][49][50][51][52], strong decay widths [53,54], valence-quark distributions [55,56], as well as properties at finite temperature [57,58].…”

Section: Interaction Model and Phenomenological Setupmentioning

confidence: 99%