Determining source cumulants in femtoscopy with gramcharlier and Edgeworth series
Date
2011
Authors
Eggers H.C.
De Kock M.B.
Schmiegel J.
Journal Title
Journal ISSN
Volume Title
Publisher
Abstract
Lowest-order cumulants provide important information on the shape of the emission source in femtoscopy. For the simple case of noninteracting identical particles, we show how the fourth-order source cumulant can be determined from measured cumulants in momentum space. The textbook GramCharlier series is found to be highly inaccurate, while the related Edgeworth series provides increasingly accurate estimates. Ordering of terms compatible with the Central Limit Theorem appears to play a crucial role even for non-Gaussian distributions. © 2011 World Scientific Publishing Company.
Description
Keywords
correlations, Edgeworth series, Femtoscopy, interferometry
Citation
Modern Physics Letters A
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http://www.scopus.com/inward/record.url?eid=2-s2.0-80051613003&partnerID=40&md5=7fb7db3ddbabaddfa153ba2b24b71e16