### Abstract

The usual x^{2} method of fit quality assessment is a special case of the more general method of Bayesian model comparison which involves integrals of the likelihood and prior over all possible values of all parameters. We introduce new parametrisations based on systematic expansions around the stretched exponential or Fourier-transformed Lévy source distribution, and utilise the increased discriminating power of the Bayesian approach to evaluate the relative probability of these models to be true representations of a recently measured Bose-Einstein correlation data in e^{+}e^{-} annihilations at LEP.

Original language | English |
---|---|

Article number | 033 |

Journal | Proceedings of Science |

Volume | 2011-September |

Publication status | Published - Jan 1 2011 |

Event | 7th Workshop on Particle Correlations and Femtoscopy, WPCF 2011 - Tokyo, Japan Duration: Sep 20 2011 → Sep 24 2011 |

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### ASJC Scopus subject areas

- General

### Cite this

^{2}to Bayesian model comparison and Levy expansions of Bose-Einstein correlations in e+e-reactions.

*Proceedings of Science*,

*2011-September*, [033].

**From x ^{2} to Bayesian model comparison and Levy expansions of Bose-Einstein correlations in e+e-reactions.** / Kock, Michiel B.De; Eggers, Hans C.; Csörgő, T.

Research output: Contribution to journal › Conference article

^{2}to Bayesian model comparison and Levy expansions of Bose-Einstein correlations in e+e-reactions',

*Proceedings of Science*, vol. 2011-September, 033.

^{2}to Bayesian model comparison and Levy expansions of Bose-Einstein correlations in e+e-reactions. Proceedings of Science. 2011 Jan 1;2011-September. 033.

}

TY - JOUR

T1 - From x2 to Bayesian model comparison and Levy expansions of Bose-Einstein correlations in e+e-reactions

AU - Kock, Michiel B.De

AU - Eggers, Hans C.

AU - Csörgő, T.

PY - 2011/1/1

Y1 - 2011/1/1

N2 - The usual x2 method of fit quality assessment is a special case of the more general method of Bayesian model comparison which involves integrals of the likelihood and prior over all possible values of all parameters. We introduce new parametrisations based on systematic expansions around the stretched exponential or Fourier-transformed Lévy source distribution, and utilise the increased discriminating power of the Bayesian approach to evaluate the relative probability of these models to be true representations of a recently measured Bose-Einstein correlation data in e+e- annihilations at LEP.

AB - The usual x2 method of fit quality assessment is a special case of the more general method of Bayesian model comparison which involves integrals of the likelihood and prior over all possible values of all parameters. We introduce new parametrisations based on systematic expansions around the stretched exponential or Fourier-transformed Lévy source distribution, and utilise the increased discriminating power of the Bayesian approach to evaluate the relative probability of these models to be true representations of a recently measured Bose-Einstein correlation data in e+e- annihilations at LEP.

UR - http://www.scopus.com/inward/record.url?scp=84942115848&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84942115848&partnerID=8YFLogxK

M3 - Conference article

VL - 2011-September

JO - Proceedings of Science

JF - Proceedings of Science

SN - 1824-8039

M1 - 033

ER -