Hanbury-Brown–twiss Interferometry With Identical Bosons in Relativistic Heavy Ion Collisions: Comparisons With Hadronic Scattering Models

Humanic, T. J.

doi:10.1142/s0218301306003977

Cited by 38 publications

(77 citation statements)

References 49 publications

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“…Very closely the same time evolution is found in Ref. [4] for a different thermal-like model and the Eq. (1) start conditions with τ 0 = 1.0 fm/c, as in Ref.…”

Section: A Physical Meaning Of τsupporting

confidence: 87%

“…In a previous article [3] it was shown that rescattering would change the slopes of transverse momentum spectra such that the slope became flatter with increasing mass of the particle species in good accordance with experimental data and irrespective of whether the input model data to the rescattering code [4] came from a thermal-like event generator or from a partonic based generator. The main aim of the present report is to investigate if the same is true for azimuthal asymmetries in the particle distributions, measured by the strength of the second harmonic of the distributions relative to the reaction plane, the so-called elliptic flow or v2 value, observed systematically in Au + Au collisions at 130 and 200 GeV/nucleon experiments (see Refs.…”

Section: Introductionmentioning

confidence: 63%

“…[3] and in earlier publications (see, e.g., Ref. [4]), although some changes have been made. First, the code was upgraded to use double precision throughout and the random number generator was changed to one with a longer cycle and fewer correlation problems than the standard Fortran routine; it is documented in Ref.…”

Section: The Hadronic Rescattering Calculationmentioning

confidence: 99%

“…[3]. The change includes all particles in the collision that is swept by under the movement of one sphere through the other, containing the initial particles, while previously [4] only particles contained in the overlap of both spheres in their middle position (z = 0 along the collision axis) were included. This results in more particles participating in the rescattering process as compared with previous finite impact parameter applications.…”

Section: The Hadronic Rescattering Calculationmentioning

confidence: 99%

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Elliptic flow from collision geometry and rescattering

2009

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Calculations of elliptic flow based on two initial state models of Au + Au collisions at √ s = 200 GeV/n coupled with a hadronic rescattering calculation are presented. The two initial state models used are a thermal model and a partonic model. Results from these calculations are compared with experiments and it is found that both initial state models give satisfactory representations of elliptic flow measurements, provided that the rescattering is started early enough in the collision process. It is also found that the present hadronic model studies do not show the jet suppression observed experimentally.

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“…Very closely the same time evolution is found in Ref. [4] for a different thermal-like model and the Eq. (1) start conditions with τ 0 = 1.0 fm/c, as in Ref.…”

Section: A Physical Meaning Of τsupporting

confidence: 87%

Section: Introductionmentioning

confidence: 63%

Section: The Hadronic Rescattering Calculationmentioning

confidence: 99%

Section: The Hadronic Rescattering Calculationmentioning

confidence: 99%

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Elliptic flow from collision geometry and rescattering

2009

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“…5 (c)): The calculated values of R 2 O − R 2 S are about 3.5 ∼ 5 fm while the measured ones are 1.5 ∼ 4 fm. Many efforts have been put forward over the last years to clarify this issue [39,44,38,46,45,28,27,25]. Here, we show in Fig.…”

Section: Pos(cpod07)048mentioning

confidence: 74%

Pion freeze-out as seen through HBT correlations in HICs from FAIR/AGS to RHIC energies

Li¹

2008

Proceedings of Critical Point and Onset of Deconfinement - 4th International Workshop — PoS(CPOD07)

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In this talk we present the results of two-pion HBT correlation at freeze-out in heavy ion collisions (HICs) from AGS to RHIC energies. The UrQMD hadron-string transport model as well as the CRAB analyzing program are adopted. Based on the cascade mode, in general, the calculations are satisfying and well in line with the experimental data although discrepancies are not negligible. Such as: I), the HBT time-related puzzle exists at all energies. II), at low AGS energies, the calculated volume as well as the mean free path of pion source at freeze-out are lower than data. It implies that a better description of interactions of particles at early stage of HICs is required.

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Femtoscopically Probing the Freeze-out Configuration in Heavy Ion Collisions

Lisa¹,

Pratt²

2010

Relativistic Heavy Ion Physics

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Two-particle femtoscopy reveals the space-time substructure of the freeze-out configuration from heavy ion collisions. Detailed fingerprints of bulk collectivity are evident in space-momentum correlations, which have been systematically measured as a function of particle type, three-momentum, and collision conditions. A clear scenario, dominated by hydrodynamic-type flow emerges. Reproducing the strength and features of the femtoscopic signals in models involves important physical quantities like the Equation of State, as well as less fundamental technical details. An interesting approximate "factorization" in the measured systematics suggests that the overall physical freeze-out scale is set by final state chemistry, but the kinematic substructure is largely universal. Referring to previous results from hadron and lepton collisions, we point to the importance of determining whether these "universal" trends persist from the largest to the smallest systems. We review theoretical expectations for heavy ion femtoscopy at the LHC, and point to directions needing further theory and experimental work at RHIC and the LHC.

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Hanbury-Brown–twiss Interferometry With Identical Bosons in Relativistic Heavy Ion Collisions: Comparisons With Hadronic Scattering Models

Cited by 38 publications

References 49 publications

Elliptic flow from collision geometry and rescattering

Elliptic flow from collision geometry and rescattering

Pion freeze-out as seen through HBT correlations in HICs from FAIR/AGS to RHIC energies

Femtoscopically Probing the Freeze-out Configuration in Heavy Ion Collisions

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