Elliptic flow, eccentricity and eccentricity fluctuations

• Autor(a) principal: Loizides,Constantin
• Data de Publicação: 2007
• Outros Autores: Alver,B., Back,B.B., Baker,M.D., Ballintijn,M., Barton,D.S., Betts,R.R., Bindel,R., Busza,W., Chai,Z., Chetluru,V., García,E., Gburek,T., Gulbrandsen,K., Hamblen,J., Harnarine,I., Henderson,C., Hofman,D.J., Hollis,R.S., Holynski,R., Holzman,B., Iordanova,A., Kane,J.L., Kulinich,P., Kuo,C.M., Li,W., Lin,W.T., Manly,S., Mignerey,A.C., Nouicer,R., Olszewski,A., Pak,R., Reed,C., Richardson,E., Roland,C., Roland,G., Sagerer,J., Sedykh,I., Smith,C.E., Stankiewicz,M.A., Steinberg,P., Stephans,G.S.F., Sukhanov,A., Szostak,A., Tonjes,M.B., Trzupek,A., van Nieuwenhuizen,G.J., Vaurynovich,S.S., Verdier,R., Veres,G.I., Walters,P., Wenger,E., Willhelm,D., Wolfs,F.L.H., Wosiek,B., Wozniak,K., Wyngaardt,S., Wyslouch,B.
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Brazilian Journal of Physics
• Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-97332007000500023
• topic: Participant eccentricity; Event-by-event

Differential studies of elliptic flow are one of the most powerful tools in studying the initial conditions and dynamical evolution of heavy ion collisions. The comparison of data from Cu+Cu and Au+Au collisions taken with the PHOBOS experiment at RHIC provides new information on the interplay between initial geometry and initial particle density in determining the observed final state flow pattern. Studies from PHOBOS point to the importance of fluctuations in the initial state geometry for understanding the Cu+Cu data. We relate the elliptic flow data to the results of our model studies on initial state geometry fluctuations and discuss how we will perform measurements of event-by-event fluctuations in elliptic flow in Au+Au collisions.