Beam-Energy Dependence of Directed Flow of Λ and Λ¯ , K^\pm, K^0_s and phi in 
Au+Au Collisions

STAR Collaboration,; Adamczyk, L.; Schmitz, N.; Seyboth, P.; et al.,

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Beam-Energy Dependence of Directed Flow of Λ and Λ¯ , K^\pm, K^0_s and phi in Au+Au Collisions

MPG-Autoren

STAR Collaboration,
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Adamczyk, L.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Schmitz, N.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Seyboth, P.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

et al.,
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

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Zitation

STAR Collaboration, Adamczyk, L., Schmitz, N., Seyboth, P., & et al. (2018). Beam-Energy Dependence of Directed Flow of Λ and Λ¯, K^\pm, K^0_s and phi in Au+Au Collisions. Physical Review Letters, (120), 062301. Retrieved from https://publications.mppmu.mpg.de/?action=search&mpi=MPP-2018-316.

Zitierlink: https://hdl.handle.net/21.11116/0000-0003-F951-9

Zusammenfassung

Rapidity-odd directed flow measurements at midrapidity are presented for $Λ$, $\barΛ$, $K^\pm$, $K^0_s$ and $φ$ at $\sqrt{s_{NN}} =$ 7.7, 11.5, 14.5, 19.6, 27, 39, 62.4 and 200 GeV in Au+Au collisions recorded by the STAR detector at the Relativistic Heavy Ion Collider. These measurements greatly expand the scope of data available to constrain models with differing prescriptions for the equation of state of quantum chromodynamics. Results show good sensitivity for testing a picture where flow is assumed to be imposed before hadron formation and the observed particles are assumed to form via coalescence of constituent quarks. The pattern of departure from a coalescence-inspired sum-rule can be a valuable new tool for probing the collision dynamics.