Elliptic flow of identified hadrons in Au+Au collisions at √ sNN = 7.7–62.4 GeV (2013)
- Authors:
- USP affiliated authors: MUNHOZ, MARCELO GAMEIRO - IF ; SUAIDE, ALEXANDRE ALARCON DO PASSO - IF ; TOLEDO, ALEJANDRO SZANTO DE - IF
- Unidade: IF
- Assunto: COLISÕES DE ÍONS PESADOS RELATIVÍSTICOS
- Language: Inglês
- Abstract: Measurements of the elliptic flow, v2, of identified hadrons (π ±, K±, K0 s , p, ¯p, φ, Λ, Λ, Ξ−, Ξ + , Ω−, Ω + ) in Au+Au collisions at √ sNN = 7.7, 11.5, 19.6, 27, 39 and 62.4 GeV are presented. The measurements were done at mid-rapidity using the Time Projection Chamber and the Time-of-Flight detectors of the STAR experiment during the Beam Energy Scan program at RHIC. A significant difference in the v2 values for particles and the corresponding anti-particles was observed at all transverse momenta for the first time. The difference increases with decreasing center-of-mass energy, √ sNN (or increasing baryon chemical potential, µB) and is larger for the baryons as compared to the mesons. This implies that particles and anti-particles are no longer consistent with the universal number-of-constituent quark (NCQ) scaling of v2 that was observed at √ sNN = 200 GeV. However, for the group of particles NCQ scaling at (mT −m0)/nq > 0.4 GeV/c 2 is not violated within ±10%. The v2 values for φ mesons at 7.7 and 11.5 GeV are approximately two standard deviations from the trend defined by the other hadrons at the highest measured pT values.
- Imprenta:
-
ABNT
ADAMCZYK, L et al. Elliptic flow of identified hadrons in Au+Au collisions at √ sNN = 7.7–62.4 GeV. . São Paulo: Instituto de Física, Universidade de São Paulo. Disponível em: http://lanl.arxiv.org/pdf/1301.2348v1.pdf. Acesso em: 10 mar. 2026. , 2013 -
APA
Adamczyk, L., Lima, L. M. de, Munhoz, M. G., Oliveira, R. A. N. de, Souza, U. G. de, Suaide, A. A. do P., & Szanto de Toledo, A. (2013). Elliptic flow of identified hadrons in Au+Au collisions at √ sNN = 7.7–62.4 GeV. São Paulo: Instituto de Física, Universidade de São Paulo. Recuperado de http://lanl.arxiv.org/pdf/1301.2348v1.pdf -
NLM
Adamczyk L, Lima LM de, Munhoz MG, Oliveira RAN de, Souza UG de, Suaide AA do P, Szanto de Toledo A. Elliptic flow of identified hadrons in Au+Au collisions at √ sNN = 7.7–62.4 GeV [Internet]. 2013 ;[citado 2026 mar. 10 ] Available from: http://lanl.arxiv.org/pdf/1301.2348v1.pdf -
Vancouver
Adamczyk L, Lima LM de, Munhoz MG, Oliveira RAN de, Souza UG de, Suaide AA do P, Szanto de Toledo A. Elliptic flow of identified hadrons in Au+Au collisions at √ sNN = 7.7–62.4 GeV [Internet]. 2013 ;[citado 2026 mar. 10 ] Available from: http://lanl.arxiv.org/pdf/1301.2348v1.pdf - Identified particle transverse momentum spectra in p+p and d+Au collisions at ''S IND.NN' POT. 1/2' = 200GeV''
- First measurement of the jet cross section in polarized p+p collisions at "S IND.NN" POT. 1/2" = 200 GeV
- Double longitudinal spin asymmetry in inclusive jet production in polarized p+p collisions at sqrt(s) = 200 GeV
- Strange baryon resonance production in ''S IND.NN' POT. 1/2' = 200 GeV'' p+p and Au+Au collisions
- Inclusive electron distributions at high pt in dAu and pp collisions at RHIC
- Global observables in dAu collisions at 'ANTIPOT. s NN''POT. 1/2' = 200 GeV
- Hadronization geometry from net-charge angular correlations on momentum subspace ("eta", "fi") in Au + Au collisions at ''S IND.NN' POT. 1/2 '= 130 GeV
- Transverse-momentum p(t) correlations on (eta,phi) from mean-p(t) fluctuations in Au-Au collisions at root(s) (NN)=200GeV
- Phi-meson production in heavy-ion collisions at RHIC
- Scaling properties of hyperon production in Au+Au collisions at ''S IND. NN' POT. 1/2'=200 GeV
How to cite
A citação é gerada automaticamente e pode não estar totalmente de acordo com as normas
