scholarly journals Analogue Space-time Based on 2-Component Bose-Einstein Condensates

2007 ◽  
pp. 115-163 ◽  
Author(s):  
S. Weinfurtner ◽  
S. Liberati ◽  
M. Visser
Keyword(s):  
Space Time ◽  
Bose Einstein

scholarly journals Lévy HBT Results at NA61/SHINE

Universe ◽  
2019 ◽  
Vol 5 (6) ◽  
pp. 154 ◽  
Author(s):  
Barnabás Pórfy
Keyword(s):  
Source Parameters ◽  
High Energy ◽  
Space Time ◽  
Time Structure ◽  
Transverse Mass ◽  
Mass Dependence ◽  
Space Time Structure ◽  
Bose Einstein

Bose–Einstein (or Hanbury–Brown and Twiss (HBT)) momentum correlations reveal the space–time structure of the particle emitting source created in high energy nucleus–nucleus collisions. In this paper we present the latest NA61/SHINE measurements of Bose–Einstein correlations of identified pion pairs and their description based on Lévy distributed sources in Be + Be collisions at 150A GeV/c. We investigate the transverse mass dependence of the Lévy source parameters and discuss their possible interpretations.

scholarly journals Geometry and Space-Time Extent of Pion Emission Region at FCC Energies

2016 ◽  
Vol 2016 ◽  
pp. 1-14 ◽  
Author(s):  
V. A. Okorokov
Keyword(s):  
Energy Dependence ◽  
Particle Density ◽  
Space Time ◽  
Emission Region ◽  
Proton Proton ◽  
Pion Emission ◽  
Charged Particle Density ◽  
Total Multiplicity ◽  
Bose Einstein ◽  
Smooth Approximations

The energy dependence is investigated for a wide set of space-time characteristics derived from Bose–Einstein correlations of secondary pion pairs produced in proton-proton and nucleus-nucleus interactions. Analytic functions suggested for smooth approximations of the energy dependence of emission region parameters demonstrate reasonable agreement with all available experimental results for proton-proton collisions while the approximations correspond to most of experimental data for nucleus-nucleus collisions at energies above 5 GeV. Estimations for a wide set of space-time quantities are obtained for energies for the Future Circular Collider (FCC) project based on the smooth approximations. The space particle densities at freeze-out are derived also from estimations for the volume of the emission region and for total multiplicity at FCC energies. Estimations for charged particle density and its critical value allow the possibility of lasing behavior for secondary pions in nucleus-nucleus collisions at FCC energy. The mathematical formalism is presented for study of the peak shape of correlation function for general case of central-symmetrical Lévy–Feldheim distribution.

scholarly journals PION INTERFEROMETRY AS A PROBE OF TIME VARYING SOURCES

1992 ◽  
Vol 07 (16) ◽  
pp. 1471-1484 ◽  
Author(s):  
J.A. CASADO
Keyword(s):  
Time Dependence ◽  
Time Distribution ◽  
Functional Form ◽  
Center Of Mass ◽  
Space Time ◽  
Time Varying ◽  
Pion Interferometry ◽  
Explicit Time Dependence ◽  
Bose Einstein ◽  
The Way

We discuss the way in which Bose-Einstein correlations among identical pions are affected by the presence of an explicit time dependence in the pion source’s space-time distribution. A particular functional form for this distribution has been assumed in order to compute both the longitudinal and transverse radii. In addition, the variations of these radii with the two pions center-of-mass rapidity is studied.

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