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"Table 6a" of "Proton Lambda correlations in central Au + Au collisions at s(NN)**(1/2) = 200-GeV."

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Mendeley Data2024-01-31 更新2024-06-27 收录
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https://www.hepdata.net/record/100424
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We report on $p-\Lambda$, $p-\bar{\Lambda}$, $\bar{p}-\Lambda$, and $\bar{p}-\bar{\Lambda}$ correlation functions constructed in central $Au-Au$ collisions at $\sqrt{s_{NN}}=200$ GeV by the STAR experiment at RHIC. The proton and lambda source size is inferred from the $p-\Lambda$ and $\bar{p}-\bar{\Lambda}$ correlation functions. It is found to be smaller than the pion source size also measured by the STAR experiment at smaller transverse masses, in agreement with a scenario of a strong universal collective flow. The $p-\bar{\Lambda}$ and $\bar{p}-\Lambda$ correlation functions, which are measured for the first time, exhibit a large anticorrelation. Annihilation channels and/or a negative real part of the spin-averaged scattering length must be included in the final-state interactions calculation to reproduce the measured correlation function.
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2024-01-31
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