Resonance decay effects on anisotropy parameters
X. DongNuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USAS. EsumiInstitute of Physics, University of Tsukuba, Tsukuba, Ibaraki 305, JapanP. SørensenNuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USAN. XuNuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USAN. XuPhysics Division, Brookhaven National Laboratory, Upton, NY 11973, USA
2004en
Ochiq kirishGibrid
Litsenziya: cc-by
ABI
Annotatsiya
We present the elliptic flow v2 of pions produced from resonance decays. The transverse momentum pT spectra of the parent particles are taken from thermal model fits and their v2 are fit under the assumption that they follow a number-of-constituent-quark (NCQ) scaling law expected from quark-coalescence models. The v2 of pions from resonance particle decays is found to be similar to the measured pion v2. We also propose the measurement of electron v2 as a means to extract open-charm v2 and investigate whether a thermalized system of quasi-free quarks and gluons (a quark–gluon plasma) is created in collisions of Au nuclei at RHIC.
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