Detection of source inhomogeneity through event-by-event two-pion Bose–Einstein correlations

We develop a method for detecting the inhomogeneity of the pion-emitting sources produced in ultra-relativistic heavy ion collisions, through event-by-event two-pion Bose–Einstein correlations. The root-mean-square of the error-inverse-weighted fluctuations between the two-pion correlation functions...

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Bibliographic Details
Published inPhysics letters. B Vol. 669; no. 5; pp. 317 - 320
Main Authors Ren, Yan-Yu, Zhang, Wei-Ning, Liu, Jian-Li
Format Journal Article
LanguageEnglish
Published Elsevier B.V 27.11.2008
Subjects
25.75.-q
25.75.Nq
25.75.Gz
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ISSN0370-2693
1873-2445
DOI10.1016/j.physletb.2008.10.005

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Summary:We develop a method for detecting the inhomogeneity of the pion-emitting sources produced in ultra-relativistic heavy ion collisions, through event-by-event two-pion Bose–Einstein correlations. The root-mean-square of the error-inverse-weighted fluctuations between the two-pion correlation functions of single and mixed events are useful observables for the detection. By investigating the root-mean-square of the weighted fluctuations for different impact parameter regions people may hopefully determine the inhomogeneity of the particle-emitting in the coming Large Hadron Collider (LHC) heavy ion experiments.
ISSN:0370-2693
1873-2445
DOI:10.1016/j.physletb.2008.10.005