Pion interferometry in ultrarelativistic heavy-ion collisions

Bertsch, G. F.; Gong, Mengyuan; Tohyama, Mitsuru

doi:10.1103/physrevc.37.1896

Cited by 259 publications

(241 citation statements)

References 8 publications

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“…The three-dimensional correlation function in Q can be shown as one-dimensional functions of the projections of Q in the "out-side-long" coordinate system [216,217].…”

Section: Two-particle Interferometrymentioning

confidence: 99%

“…For heavy ion collisions, the HBT effect may provide information not only on the spatial extent of the emission source but also on its emission duration [215][216][217][218]. In particular, the long emission time as a result of the phase transition from the quark-gluon plasma to the hadronic matter in relativistic heavy ion collisions may lead to an emission source which has a R out /R side ratio much larger than 1 [218][219][220], where the out-direction is along the total transverse momentum of two detected particles and the side-direction is perpendicular to both the out-direction and the beam direction (called the long-direction) [216,217]. Since the quark-gluon plasma is expected to be formed in heavy ion collisions at RHIC, it is thus surprising to find that the extracted ratio R out /R side from a Gaussian fit to the measured correlation function of two identical pions in Au+Au collisions is close to 1 [221][222][223].…”

Section: Two-particle Interferometrymentioning

confidence: 99%

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Multiphase transport model for relativistic heavy ion collisions

et al. 2005

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We describe in detail how the different components of a multiphase transport (AMPT) model that uses the heavy ion jet interaction generator (HIJING) for generating the initial conditions, Zhang's parton cascade (ZPC) for modeling partonic scatterings, the Lund string fragmentation model or a quark coalescence model for hadronization, and a relativistic transport (ART) model for treating hadronic scatterings are improved and combined to give a coherent description of the dynamics of relativistic heavy ion collisions. We also explain the way parameters in the model are determined and discuss the sensitivity of predicted results to physical input in the model. Comparisons of these results to experimental data, mainly from heavy ion collisions at the BNL Relativistic Heavy Ion Collider, are then made in order to extract information on the properties of the hot dense matter formed in these collisions.

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“…The three-dimensional correlation function in Q can be shown as one-dimensional functions of the projections of Q in the "out-side-long" coordinate system [216,217].…”

Section: Two-particle Interferometrymentioning

confidence: 99%

Section: Two-particle Interferometrymentioning

confidence: 99%

Multiphase transport model for relativistic heavy ion collisions

et al. 2005

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“…Such a general procedure allows for an easy implementation of experimental cuts, final interaction or Coulomb corrections [72,73] and can be also applied to non-identical particle correlations [74]. The extracted multidimensional correlation functions are parameterized by the Bertsch-Pratt formula [75,76] …”

Section: Particle Spectra Flow Correlation Radiimentioning

confidence: 99%

Rapid hydrodynamic expansion in relativistic heavy-ion collisions

Božek

Wyskiel

2009

Phys. Rev. C

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Hydrodynamic expansion of the hot fireball created in relativistic Au-Au collisions at √ s = 200GeV in 3 + 1-dimensions is studied. We obtain a simultaneous, satisfactory description of the transverse momentum spectra, elliptic flow and pion correlation radii for different collision centralities and different rapidities. Early initial time of the evolution is required to reproduce the interferometry data, which provides a strong indication of the early onset of collectivity. We can also constraint the shape of the initial energy density in the beam direction, with a relatively high initial energy density at the center of the fireball.

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“…where q is the pair 4-momentum difference of the first and the second particle decomposed in the Bertsch-Pratt coordinate system [4,5] to q out , q side , and q long components. The source radii are extracted from the correlation functions by the standard Bowler-Sinyukov [6,7] method, which is based on the separation of the Coulomb interaction, K (q inv , R inv ), from the pure Bose-Einstein correlation function.…”

Section: Introductionmentioning

confidence: 99%