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ΛΛ Correlation function in Au+Au collisions at √[S(NN)]=200 GeV
L Adamczyk1, J K Adkins2, G Agakishiev3
1AGH University of Science and Technology, Cracow, Poland.
Physical Review Letters
|January 31, 2015
Summary
We measured Lambda-Lambda correlations in gold-gold collisions at the Relativistic Heavy-Ion Collider. This provides insights into the strong force between hyperons, aiding dihyperon searches.
Area of Science:
- Nuclear Physics
- Particle Physics
- High-Energy Physics
Background:
- Understanding the strong nuclear force is crucial.
- Hyperon-hyperon interactions are not well-constrained.
- Dihyperon searches are important for nuclear physics.
Purpose of the Study:
- To measure Lambda-Lambda correlations in Au+Au collisions.
- To determine interaction parameters between Lambda particles.
- To assess implications for dihyperon searches.
Main Methods:
- Utilized the STAR detector at the Relativistic Heavy-Ion Collider.
- Analyzed gold-gold collisions at 200 GeV.
- Applied the Lednický-Lyuboshitz analytical model for data fitting.
Main Results:
- Presented Lambda-Lambda correlation functions.
- Obtained source size, scattering length, and effective range.
- Discussed the implications of these parameters.
Conclusions:
- The measured correlation function provides constraints on Lambda-Lambda interactions.
- These findings contribute to the ongoing search for dihyperons.
- Further studies can refine understanding of hyperon interactions.
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