Resonance decay effects on anisotropy parameters

Journal Article · Thu Mar 11 00:00:00 EST 2004 · Physics Letter B

DOI:https://doi.org/10.1016/j.physletb.2004.06.110· OSTI ID:836969

Dong, Xin; Esumi, S; Sorensen, P; Xu, Nu; Xu, Z

We present the elliptic flow v{sub 2} of pions produced from resonance decays. The transverse momentum p{sub T} spectra of the parent particles are taken from thermal model fits and their v{sub 2} are fit under the assumption that they follow a number-of-constituent-quark (NCQ) scaling law expected from quark-coalescence models. The v{sub 2} of pions from resonance particle decays is found to be similar to the measured pion v{sub 2}. We also propose the measurement of electron v{sub 2} as a means to extract open-charm v{sub 2} 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.

• Research Organization: Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
• Sponsoring Organization: USDOE Director. Office of Science. Office of High Energy and Nuclear Physics. Division of Nuclear Physics; National Science Foundation of China Project 10275027 (US)
• DOE Contract Number: AC03-76SF00098
• OSTI ID: 836969
• Report Number(s): LBNL-54764; R&D Project: NRNC; TRN: US0500852
• Journal Information: Physics Letter B, Vol. 597, Issue 3-4; Other Information: Submitted to Physics Letter B: Volume 597, No.3-4; Journal Publication Date: 09/16/2004; PBD: 11 Mar 2004
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ANISOTROPY
DECAY
ELECTRONS
GLUONS
NUCLEI
PIONS
QUARK MATTER
QUARKS
RESONANCE
RESONANCE PARTICLES
SCALING LAWS
SPECTRA
TRANSVERSE MOMENTUM