### Abstract

There are two types of scales present simultaneously in the spacelike as well as in the timelike directions in a model class describing a cylindrically symmetric, finite, three-dimensionally expanding boson source. One type of scale is related to the finite lifetime or geometrical size of the system, and the other type is governed by the rate of change of the local momentum distribution in the considered temporal or spatial direction. The parameters of the Bose-Einstein correlation function may obey an M_{t} scaling, as observed in S+Pb and Pb+Pb reactions at CERN SPS. This M_{t} scaling may imply that the Bose-Einstein correlation functions view only a small part of a large and expanding system. The full sizes of the expanding system at the last interaction are shown to be measurable with the help of the invariant momentum distribution of the emitted particles. A vanishing duration parameter can also be generated, with a specific M, dependence, in the considered model class.

Original language | English |
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Pages (from-to) | 1390-1403 |

Number of pages | 14 |

Journal | Physical Review C - Nuclear Physics |

Volume | 54 |

Issue number | 3 |

DOIs | |

Publication status | Published - Sep 1996 |

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### ASJC Scopus subject areas

- Physics and Astronomy(all)
- Nuclear and High Energy Physics

### Cite this

**Bose-Einstein correlations for three-dimensionally expanding, cylindrically symmetric, finite systems.** / Csörgő, T.; Lörstad, B.

Research output: Contribution to journal › Article

*Physical Review C - Nuclear Physics*, vol. 54, no. 3, pp. 1390-1403. https://doi.org/10.1103/PhysRevC.54.1390

}

TY - JOUR

T1 - Bose-Einstein correlations for three-dimensionally expanding, cylindrically symmetric, finite systems

AU - Csörgő, T.

AU - Lörstad, B.

PY - 1996/9

Y1 - 1996/9

N2 - There are two types of scales present simultaneously in the spacelike as well as in the timelike directions in a model class describing a cylindrically symmetric, finite, three-dimensionally expanding boson source. One type of scale is related to the finite lifetime or geometrical size of the system, and the other type is governed by the rate of change of the local momentum distribution in the considered temporal or spatial direction. The parameters of the Bose-Einstein correlation function may obey an Mt scaling, as observed in S+Pb and Pb+Pb reactions at CERN SPS. This Mt scaling may imply that the Bose-Einstein correlation functions view only a small part of a large and expanding system. The full sizes of the expanding system at the last interaction are shown to be measurable with the help of the invariant momentum distribution of the emitted particles. A vanishing duration parameter can also be generated, with a specific M, dependence, in the considered model class.

AB - There are two types of scales present simultaneously in the spacelike as well as in the timelike directions in a model class describing a cylindrically symmetric, finite, three-dimensionally expanding boson source. One type of scale is related to the finite lifetime or geometrical size of the system, and the other type is governed by the rate of change of the local momentum distribution in the considered temporal or spatial direction. The parameters of the Bose-Einstein correlation function may obey an Mt scaling, as observed in S+Pb and Pb+Pb reactions at CERN SPS. This Mt scaling may imply that the Bose-Einstein correlation functions view only a small part of a large and expanding system. The full sizes of the expanding system at the last interaction are shown to be measurable with the help of the invariant momentum distribution of the emitted particles. A vanishing duration parameter can also be generated, with a specific M, dependence, in the considered model class.

UR - http://www.scopus.com/inward/record.url?scp=0030521145&partnerID=8YFLogxK

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U2 - 10.1103/PhysRevC.54.1390

DO - 10.1103/PhysRevC.54.1390

M3 - Article

VL - 54

SP - 1390

EP - 1403

JO - Physical Review C - Nuclear Physics

JF - Physical Review C - Nuclear Physics

SN - 0556-2813

IS - 3

ER -