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Transverse momentum dependence of eta meson suppression in Au+Au collisions at sq root(s{sub NN})=200 GeV

Adare, A. ; Bickley, A. A. ; Ellinghaus, F. ; Glenn, A. ; Kinney, E. ; Kiriluk, K. ; Linden Levy, L. A. ; Nagle, J. L. ; Rosen, C. A. ; Seele, J. ; Wysocki, M. ; Afanasiev, S. ; Isupov, A. ; Litvinenko, A. ; Malakhov, A. ; Peresedov, V. ; Rukoyatkin, P. ; Zolin, L. ; Aidala, C. ; Datta, A.

Physical review. C, Nuclear physics, 2010-07, Vol.82 (1)

United States

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Título:
Transverse momentum dependence of eta meson suppression in Au+Au collisions at sq root(s{sub NN})=200 GeV
Autor: Adare, A. ; Bickley, A. A. ; Ellinghaus, F. ; Glenn, A. ; Kinney, E. ; Kiriluk, K. ; Linden Levy, L. A. ; Nagle, J. L. ; Rosen, C. A. ; Seele, J. ; Wysocki, M. ; Afanasiev, S. ; Isupov, A. ; Litvinenko, A. ; Malakhov, A. ; Peresedov, V. ; Rukoyatkin, P. ; Zolin, L. ; Aidala, C. ; Datta, A.
Assuntos: ACCELERATORS ; ATOM COLLISIONS ; ATOM-ATOM COLLISIONS ; BARYON-BARYON INTERACTIONS ; BOSONS ; BROOKHAVEN RHIC ; COLLISIONS ; ELEMENTARY PARTICLES ; ELEMENTS ; ENERGY RANGE ; ETA MESONS ; EXTRACTION ; GEV RANGE ; GEV RANGE 100-1000 ; GOLD ; HADRON-HADRON INTERACTIONS ; HADRONS ; HEAVY ION ACCELERATORS ; INTERACTIONS ; LINEAR MOMENTUM ; MESONS ; METALS ; MODIFICATIONS ; NUCLEAR PHYSICS AND RADIATION PHYSICS ; NUCLEON-NUCLEON INTERACTIONS ; PARTICLE INTERACTIONS ; PARTICLE PRODUCTION ; PHYSICS OF ELEMENTARY PARTICLES AND FIELDS ; PIONS ; PIONS NEUTRAL ; PROTON-NUCLEON INTERACTIONS ; PROTON-PROTON INTERACTIONS ; PSEUDOSCALAR MESONS ; SEPARATION PROCESSES ; SIMULATION ; STORAGE RINGS ; TRANSITION ELEMENTS ; TRANSVERSE MOMENTUM
É parte de: Physical review. C, Nuclear physics, 2010-07, Vol.82 (1)
Descrição: New measurements by the PHENIX experiment at the Relativistic Heavy Ion Collider for eta production at midrapidity as a function of transverse momentum (p{sub T}) and collision centrality in sq root(s{sub NN})=200 GeV Au+Au and p+p collisions are presented. They indicate nuclear modification factors (R{sub AA}) which are similar in both magnitude and trend to those found in earlier pi{sup 0} measurements. Linear fits to R{sub AA} as a function of p{sub T} in 5-20 GeV/c show that the slope is consistent with zero within two standard deviations at all centralities, although a slow rise cannot be excluded. Having different statistical and systematic uncertainties, the pi{sup 0} and eta measurements are complementary at high p{sub T}; thus, along with the extended p{sub T} range of these data they can provide additional constraints for theoretical modeling and the extraction of transport properties.
Editor: United States
Idioma: Inglês

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Transverse momentum dependence of eta meson suppression in Au+Au collisions at sq root(s{sub NN})=200 GeV

Adare, A. ; Bickley, A. A. ; Ellinghaus, F. ; Glenn, A. ; Kinney, E. ; Kiriluk, K. ; Linden Levy, L. A. ; Nagle, J. L. ; Rosen, C. A. ; Seele, J. ; Wysocki, M. ; Afanasiev, S. ; Isupov, A. ; Litvinenko, A. ; Malakhov, A. ; Peresedov, V. ; Rukoyatkin, P. ; Zolin, L. ; Aidala, C. ; Datta, A.

United States

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