Intensity interferometry in subatomic physics

Boal, David H.; Gelbke, C. K.; Jennings, B.K.

doi:10.1103/revmodphys.62.553

Cited by 508 publications

(472 citation statements)

References 166 publications

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“…However, as mentioned above, the particle emission time cannot be directly accessed by experiments, but the nucleon emission function can be extracted from two-particle correlation functions, see, e.g., Refs. [89,90,91,92] for reviews. In most studies, only the two-proton correlation function has been measured [97,98,99,100,24].…”

Section: Average Emission Timesmentioning

confidence: 99%

“…Of course we do not have direct access to the particle emission time experimentally, but two-particle correlation functions, through final-state interactions and quantum statistics effects, have been shown to be a sensitive probe to the temporal and spatial distribution of emission sources during the reaction dynamics of heavy ion collisions at incident energies ranging from intermediate [89,90,91] to RHIC energy [92].…”

Section: Pre-equilibrium Dynamicsmentioning

confidence: 99%

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Reaction dynamics with exotic nuclei

et al. 2005

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Iste magistrorum locus est simul et puerorum, mittunt quando volunt hic res quas perdere nolunt [1]. AbstractWe review the new possibilities offered by the reaction dynamics of asymmetric heavy ion collisions, using stable and unstable beams. We show that it represents a rather unique tool to probe regions of highly Asymmetric Nuclear Matter (AN M ) in compressed as well as dilute phases, and to test the in-medium isovector interaction for high momentum nucleons. The focus is on a detailed study of the symmetry term of the nuclear Equation of State (EOS) in regions far away from saturation conditions but always under laboratory controlled conditions. Thermodynamic properties of AN M are surveyed starting from nonrelativistic and relativistic effective interactions. In the relativistic case the role of the isovector scalar δ-meson is stressed. The qualitative new features of the liquid-gas phase transition, "diffusive" instability and isospin distillation, are discussed. The results of ab-initio simulations of n-rich, n-poor, heavy ion collisions, using stochastic isospin dependent transport equations, are analysed as a function of beam energy and centrality. The isospin dynamics plays an important role in all steps of the reaction, from prompt nucleon emissions to the final fragments. The isospin diffusion is also of large interest, due to the interplay of asymmetry and density gradients. In relativistic collisions, the possibility of a direct study of the covariant structure of the effective nucleon interaction is shown. Results are discussed for particle production, collective flows and iso-transparency.Perspectives of further developments of the field, in theory as well as in experiment, are presented.

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Section: Average Emission Timesmentioning

confidence: 99%

Section: Pre-equilibrium Dynamicsmentioning

confidence: 99%

Reaction dynamics with exotic nuclei

et al. 2005

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“…Quantum interference effects are probed by studying the Lorentz invariant quantity Q [2,37] of two indistinguishable particles of rest mass m and four-momenta q 1 and q 2 Q = −(q 1 − q 2 ) 2 = M 2 − 4m 2 , (2.1)…”

Section: Bec Measurementmentioning

confidence: 99%

“…Multiparticle production within the process of hadronisation can be investigated by measuring Bose-Einstein correlations (BEC) between indistinguishable bosons [1,2]. The technique to study the BEC effect in particle physics is the analogue of the Hanbury-BrownTwiss (HBT) intensity interferometry [3][4][5].…”

Section: Introductionmentioning

confidence: 99%

Bose-Einstein correlations of same-sign charged pions in the forward region in pp collisions at s = 7 $$ \sqrt{s}=7 $$ TeV

Aaij¹,

Adeva²,

Adinolfi³

et al. 2017

J. High Energ. Phys.

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Bose-Einstein correlations of same-sign charged pions, produced in protonproton collisions at a 7 TeV centre-of-mass energy, are studied using a data sample collected by the LHCb experiment. The signature for Bose-Einstein correlations is observed in the form of an enhancement of pairs of like-sign charged pions with small four-momentum difference squared. The charged-particle multiplicity dependence of the Bose-Einstein correlation parameters describing the correlation strength and the size of the emitting source is investigated, determining both the correlation radius and the chaoticity parameter. The measured correlation radius is found to increase as a function of increasing charged-particle multiplicity, while the chaoticity parameter is seen to decrease.

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“…It was calculated, by means of the well established technique, as a ratio of the momentum (k) dependent reaction yield Y (k) to the uncorrelated yield Y * (k) according to the formula (cf. [21])…”

Section: Experimental Techniquementioning

confidence: 99%

Two-proton correlation function for thepp→pp+ η andpp→pp+pionsreactions

Klaja¹,

Moskal²,

Czerwiński³

et al. 2010

J. Phys. G: Nucl. Part. Phys.

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Abstract. For the very first time, the correlation femtoscopy method is applied to a kinematically complete measurement of meson production in the collisions of hadrons. A two-proton correlation function was derived from the data for the pp → ppX reaction, measured near the threshold of η meson production. A technique developed for the purpose of this analysis permitted to establish the correlation function separately for the production of the pp + η and of the pp + pions systems. The shape of the two-proton correlation function for the ppη differs from that for the pp(pions) and both do not show a peak structure opposite to results determined for inclusive measurements of heavy ion collisions.

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Intensity interferometry in subatomic physics

Cited by 508 publications

References 166 publications

Reaction dynamics with exotic nuclei

Reaction dynamics with exotic nuclei

Bose-Einstein correlations of same-sign charged pions in the forward region in pp collisions at s = 7 $$ \sqrt{s}=7 $$ TeV

Two-proton correlation function for thepp→pp+ η andpp→pp+pionsreactions

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