Basic treatment of QCD phase transition bubble nucleation

Kisslinger, Leonard S.; Walawalkar, Sameer; Johnson, Mikkel B.

doi:10.1103/physrevd.71.065017

Cited by 15 publications

(10 citation statements)

References 33 publications

(79 reference statements)

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“…Since we find that |Ψ ′ (2S) >≃ −0.7|cc(2S) > +0.7|ccg(2S) >, so the charmonium and hybrid charmonium approximately cancel, we obtain for all 2 hadron decays, The solution to the Vogel ∆n = 2 puzzle is based on the aplication of the glueball/sigma model, based on the study of scalar mesons and scalar glueballs [11,12], which was motivated by the BES analysis of glueball decay [13], and our solution for the lowest mixed state to be the Υ(3S) state. The glueball/sigma model has been used for prediction of sigma production from glue created in hadron-hadron collisions [14] and the decay of hybrid baryons [15], which is closely related to the puzzle of sigma decays from upsilon states. The key is the glueball-meson coupling theorem [16] dxT…”

Section: A the ρ − π Puzzlementioning

confidence: 99%

Mixed heavy quark hybrid mesons, decay puzzles, and RHIC

Kisslinger

2009

Phys. Rev. D

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100

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We estimate the energy of the lowest charmonium and upsilon states with hybrid admixtures using the method of QCD Sum Rules. Our results show that the Ψ ′ (2S) and Υ(3S) states both have about a 50% admixture of hybrid and meson components. From this we find explanations of both the famous ρ − π puzzle for charmonium, and the unusual pattern of σ decays that have been found in Υ decays. Moreover, this picture can be used for predictions of heavy quark production with the octet model for RHIC.

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Section: A the ρ − π Puzzlementioning

confidence: 99%

Mixed heavy quark hybrid mesons, decay puzzles, and RHIC

Kisslinger

2009

Phys. Rev. D

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100

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“…Because the QGP is a strongly interacting dense medium, a surface tension arises at a boundary due to the presence of a strong interaction in the dense phase on one side of the boundary and the absence (or weakening) of the strong interaction with no density (or diminishing density) on the other side [46,47,48,49,50,51,52,53]. This imbalance of the forces acting on different parts at the boundary leads to the surface tension, while the detail profile of the boundary may depend on the nature and the order of phase transition.…”

Section: Granular Instability In the Evolution Of The Quark-gluonmentioning

confidence: 99%

Analysis of pion elliptic flow and Hanbury-Brown–Twiss interferometry in a granular quark-gluon plasma droplet model

2006

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In many simulations of high-energy heavy-ion collisions on an event-by-event analysis, it is known that the initial energy density distribution in the transverse plane is highly fluctuating. Subsequent longitudinal expansion will lead to many longitudinal tubes of quark-gluon plasma which have tendencies to break up into many spherical droplets because of sausage instabilities. We are therefore motivated to use a model of quark-gluon plasma granular droplets that evolve hydrodynamically to investigate pion elliptic flows and Hanbury-Brown-Twiss interferometry. We find that the data of pion transverse momentum spectra, elliptic flows, and HBT radii in √ sNN = 200 GeV Au + Au collisions at RHIC can be described well by an expanding source of granular droplets with an anisotropic velocity distribution.

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“…Bubble nucleation happens in boiling and cavitation processes in a wide range of contexts and disciplines [1], e.g., the electroweak [2,3] and QCD [4] phase transitions in cosmology, direct dark matter detection experiments [5][6][7], vulcanism [8] and hydrodynamic cavitation erosion [9], and sonochemistry [10]. Despite its fundamental importance, the detailed mechanism of bubble nucleation remains unclear [11], and accurate predictions of bubble nucleation rates are still not yet possible [11,12].…”

Section: Introductionmentioning

confidence: 99%

Direct simulations of homogeneous bubble nucleation: Agreement with classical nucleation theory and no local hot spots

et al. 2014

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We present results from direct, large-scale molecular dynamics simulations of homogeneous bubble (liquidto-vapor) nucleation. The simulations contain half a billion Lennard-Jones atoms and cover up to 56 million time steps. The unprecedented size of the simulated volumes allows us to resolve the nucleation and growth of many bubbles per run in simple direct micro-canonical simulations while the ambient pressure and temperature remain almost perfectly constant. We find bubble nucleation rates which are lower than in most of the previous, smaller simulations. It is widely believed that classical nucleation theory (CNT) generally underestimates bubble nucleation rates by very large factors. However, our measured rates are within two orders of magnitude of CNT predictions; only at very low temperatures does CNT underestimate the nucleation rate significantly. Introducing a small, positive Tolman length leads to very good agreement at all temperatures, as found in our recent vapor-to-liquid nucleation simulations. The critical bubbles sizes derived with the nucleation theorem agree well with the CNT predictions at all temperatures. Local hot spots reported in the literature are not seen: Regions where a bubble nucleation event will occur are not above the average temperature, and no correlation of temperature fluctuations with subsequent bubble formation is seen.

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Basic treatment of QCD phase transition bubble nucleation

Abstract: Starting from the QCD Lagrangian and the surface tension of QCD bubbles we derive the critical size of bubbles, the nucleation probability and the nucleation site separation distance.

Cited by 15 publications

References 33 publications

Mixed heavy quark hybrid mesons, decay puzzles, and RHIC

Mixed heavy quark hybrid mesons, decay puzzles, and RHIC

Analysis of pion elliptic flow and Hanbury-Brown–Twiss interferometry in a granular quark-gluon plasma droplet model

Direct simulations of homogeneous bubble nucleation: Agreement with classical nucleation theory and no local hot spots

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