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dc.contributor.authorSTAR Collaboration
Butterworth, J.
Eppley, G.
Geurts, F.
Llope, W.J.
McDonald, D.
Roberts, J.B.
Xin, K.
Yepes, P.
dc.date.accessioned 2015-05-13T20:17:19Z
dc.date.available 2015-05-13T20:17:19Z
dc.date.issued 2013
dc.identifier.citation STAR Collaboration, Butterworth, J., Eppley, G., et al.. "Freeze-out dynamics via charged kaon femtoscopy in √sNN=200 GeV central Au + Au collisions." Physical Review C, 88, no. 3 (2013) American Physical Society: 34906. http://dx.doi.org/10.1103/PhysRevC.88.034906.
dc.identifier.urihttps://hdl.handle.net/1911/80209
dc.description.abstract We present measurements of three-dimensional correlation functions of like-sign, low-transverse-momentum kaon pairs from √sNN=200 GeV Au+Au collisions. A Cartesian surface-spherical harmonic decomposition technique was used to extract the kaon source function. The latter was found to have a three-dimensional Gaussian shape and can be adequately reproduced by Therminator event-generator simulations with resonance contributions taken into account. Compared to the pion one, the kaon source function is generally narrower and does not have the long tail along the pair transverse momentum direction. The kaon Gaussian radii display a monotonic decrease with increasing transverse mass mT over the interval of 0.55≤mT≤1.15 GeV/c2. While the kaon radii are adequately described by the mT -scaling in the outward and sideward directions, in the longitudinal direction the lowest mT value exceeds the expectations from a pure hydrodynamical model prediction.
dc.language.iso eng
dc.publisher American Physical Society
dc.rights Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
dc.title Freeze-out dynamics via charged kaon femtoscopy in √sNN=200 GeV central Au + Au collisions
dc.type Journal article
dc.citation.journalTitle Physical Review C
dc.citation.volumeNumber 88
dc.citation.issueNumber 3
dc.type.dcmi Text
dc.identifier.doihttp://dx.doi.org/10.1103/PhysRevC.88.034906
dc.type.publication publisher version
dc.citation.firstpage 34906


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