Test of the tau-model of Bose-Einstein correlations and reconstruction of the source function in hadronic Z-boson decay at LEP
Bose–Einstein correlations of pairs of identical charged pions produced in hadronic Z decays are analyzed in terms of various parametrizations. A good description is achieved using a Lévy stable distribution in conjunction with a model where a particle’s momentum is correlated with its space–time po...
| Main Authors: | , , , , , , , , , , , , , , , , , , |
|---|---|
| Other Authors: | |
| Format: | Article |
| Language: | en_US |
| Published: |
Springer-Verlag
2013
|
| Online Access: | http://hdl.handle.net/1721.1/76320 https://orcid.org/0000-0002-4436-6077 https://orcid.org/0000-0001-7831-7460 https://orcid.org/0000-0002-6047-4211 https://orcid.org/0000-0002-0450-7007 https://orcid.org/0000-0002-5006-6847 https://orcid.org/0000-0003-3513-8408 https://orcid.org/0000-0002-8667-5660 https://orcid.org/0000-0002-7172-9021 |
| Summary: | Bose–Einstein correlations of pairs of identical charged pions produced in hadronic Z decays are analyzed in terms of various parametrizations. A good description is achieved using a Lévy stable distribution in conjunction with a model where a particle’s momentum is correlated with its space–time point of production, the τ-model. Using this description and the measured rapidity and transverse momentum distributions, the space–time evolution of particle emission in two-jet events is reconstructed. However, the elongation of the particle emission region previously observed is not accommodated in the τ-model, and this is investigated using an ad hoc modification. |
|---|