Femtoscopy with unlike-sign kaons at STAR in 200 GeV Au+Au collisions

被引：1
|
作者：
Lidrych, Jindrich [1 ]
机构：
[1] Czech Tech Univ, Fac Nucl Sci & Phys Engn, Biehova 7, Prague 11519 1, Czech Republic
来源：
4TH INTERNATIONAL CONFERENCE ON NEW FRONTIERS IN PHYSICS | 2016年 / 126卷
关键词：
D O I：
10.1051/epjconf/201612605008
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
In the collisions of heavy ions the nuclear matter can undergo a phase transition from hadrons to a state of deconfined quarks and gluons called the Quak-Gluon Plasma. Femtoscopic measurements of two-particle correlations at small relative momenta reveal information about the space-time characteristics of the system at the moment of particle emission. The correlations result from quantum statistics, final-state Coulomb interactions, and the strong final-state interactions between the emitted particles. It has been predicted that correlations due to the strong final-state interactions in a system where a narrow resonance is present will be sensitive, in the region of the resonance, to the source size and momentum-space correlations. Such a measurement can provide complementary information to the measurements at very low relative momenta. This paper presents the preliminary results of a STAR analysis of unlike-sign kaon femtoscopic correlations in Au+Au collisions at root s(NN)=200 GeV, including the region of phi(1020) resonance. The experimental results are compared to a theoretical prediction that includes the treatment of resonance formation due to the final-state interactions.
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页数：7
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