Internal Cumulants for Femtoscopy with Fixed Charged Multiplicity
Joint Authors
Source
Advances in High Energy Physics
Issue
Vol. 2013, Issue 2013 (31 Dec. 2013), pp.1-22, 22 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2013-07-29
Country of Publication
Egypt
No. of Pages
22
Main Subjects
Abstract EN
A detailed understanding of all effects and influences on higher-order correlations is essential.
At low charged multiplicity, the effect of a non-Poissonian multiplicity distribution can significantly distort correlations.
Evidently, the reference samples with respect to which correlations are measured should yield a null result in the absence of correlations.
We show how the careful specification of desired properties necessarily leads to an average-of-multinomials reference sample.
The resulting internal cumulants and their averaging over several multiplicities fulfill all requirements of correctly taking into account non-Poissonian multiplicity distributions as well as yielding a null result for uncorrelated fixed-N samples.
Various correction factors are shown to be approximations at best.
Careful rederivation of statistical variances and covariances within the frequentist approach yields errors for cumulants that differ from those used so far.
We finally briefly discuss the implementation of the analysis through a multiple event buffer algorithm.
American Psychological Association (APA)
Eggers, H. C.& Buschbeck, B.. 2013. Internal Cumulants for Femtoscopy with Fixed Charged Multiplicity. Advances in High Energy Physics،Vol. 2013, no. 2013, pp.1-22.
https://search.emarefa.net/detail/BIM-455689
Modern Language Association (MLA)
Eggers, H. C.& Buschbeck, B.. Internal Cumulants for Femtoscopy with Fixed Charged Multiplicity. Advances in High Energy Physics No. 2013 (2013), pp.1-22.
https://search.emarefa.net/detail/BIM-455689
American Medical Association (AMA)
Eggers, H. C.& Buschbeck, B.. Internal Cumulants for Femtoscopy with Fixed Charged Multiplicity. Advances in High Energy Physics. 2013. Vol. 2013, no. 2013, pp.1-22.
https://search.emarefa.net/detail/BIM-455689
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-455689