Elliptic flow, eccentricity and eccentricity fluctuations

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.

Participant eccentricity; Event-by-event

Authorship

Constantin Loizides

Massachusetts Institute of Technology, Cambridge, MA, USAMassachusetts Institute of TechnologyUSACambridge, MA, USAMassachusetts Institute of Technology, Cambridge, MA, USA

B. Alver

Massachusetts Institute of Technology, Cambridge, MA, USAMassachusetts Institute of TechnologyUSACambridge, MA, USAMassachusetts Institute of Technology, Cambridge, MA, USA

B.B. Back

Argonne National Laboratory, Argonne, IL, USAArgonne National LaboratoryUSAArgonne, IL, USAArgonne National Laboratory, Argonne, IL, USA

M.D. Baker

Brookhaven National Laboratory, Upton, NY, USABrookhaven National LaboratoryUSAUpton, NY, USABrookhaven National Laboratory, Upton, NY, USA

M. Ballintijn

Massachusetts Institute of Technology, Cambridge, MA, USAMassachusetts Institute of TechnologyUSACambridge, MA, USAMassachusetts Institute of Technology, Cambridge, MA, USA

D.S. Barton

Brookhaven National Laboratory, Upton, NY, USABrookhaven National LaboratoryUSAUpton, NY, USABrookhaven National Laboratory, Upton, NY, USA

R.R. Betts

University of Illinois at Chicago, Chicago, IL, USAUniversity of Illinois at ChicagoUSAChicago, IL, USAUniversity of Illinois at Chicago, Chicago, IL, USA

R. Bindel

University of Maryland, College Park, MD, USAUniversity of MarylandUSACollege Park, MD, USAUniversity of Maryland, College Park, MD, USA

W. Busza

Massachusetts Institute of Technology, Cambridge, MA, USAMassachusetts Institute of TechnologyUSACambridge, MA, USAMassachusetts Institute of Technology, Cambridge, MA, USA

Z. Chai

Brookhaven National Laboratory, Upton, NY, USABrookhaven National LaboratoryUSAUpton, NY, USABrookhaven National Laboratory, Upton, NY, USA

V. Chetluru

University of Illinois at Chicago, Chicago, IL, USAUniversity of Illinois at ChicagoUSAChicago, IL, USAUniversity of Illinois at Chicago, Chicago, IL, USA

E. García

University of Illinois at Chicago, Chicago, IL, USAUniversity of Illinois at ChicagoUSAChicago, IL, USAUniversity of Illinois at Chicago, Chicago, IL, USA

T. Gburek

Institute of Nuclear Physics PAN, Kraków, PolandInstitute of Nuclear Physics PANPolandKraków, PolandInstitute of Nuclear Physics PAN, Kraków, Poland

K. Gulbrandsen

Massachusetts Institute of Technology, Cambridge, MA, USAMassachusetts Institute of TechnologyUSACambridge, MA, USAMassachusetts Institute of Technology, Cambridge, MA, USA

J. Hamblen

University of Rochester, Rochester, NY, USAUniversity of RochesterUSARochester, NY, USAUniversity of Rochester, Rochester, NY, USA

I. Harnarine

University of Maryland, College Park, MD, USAUniversity of MarylandUSACollege Park, MD, USAUniversity of Maryland, College Park, MD, USA

C. Henderson

Massachusetts Institute of Technology, Cambridge, MA, USAMassachusetts Institute of TechnologyUSACambridge, MA, USAMassachusetts Institute of Technology, Cambridge, MA, USA

D.J. Hofman

University of Illinois at Chicago, Chicago, IL, USAUniversity of Illinois at ChicagoUSAChicago, IL, USAUniversity of Illinois at Chicago, Chicago, IL, USA

R.S. Hollis

University of Illinois at Chicago, Chicago, IL, USAUniversity of Illinois at ChicagoUSAChicago, IL, USAUniversity of Illinois at Chicago, Chicago, IL, USA

R. Holynski

Institute of Nuclear Physics PAN, Kraków, PolandInstitute of Nuclear Physics PANPolandKraków, PolandInstitute of Nuclear Physics PAN, Kraków, Poland

B. Holzman

Brookhaven National Laboratory, Upton, NY, USABrookhaven National LaboratoryUSAUpton, NY, USABrookhaven National Laboratory, Upton, NY, USA

A. Iordanova

University of Illinois at Chicago, Chicago, IL, USAUniversity of Illinois at ChicagoUSAChicago, IL, USAUniversity of Illinois at Chicago, Chicago, IL, USA

J.L. Kane

Massachusetts Institute of Technology, Cambridge, MA, USAMassachusetts Institute of TechnologyUSACambridge, MA, USAMassachusetts Institute of Technology, Cambridge, MA, USA

P. Kulinich

Massachusetts Institute of Technology, Cambridge, MA, USAMassachusetts Institute of TechnologyUSACambridge, MA, USAMassachusetts Institute of Technology, Cambridge, MA, USA

C.M. Kuo

National Central University, Chung-Li, TaiwanNational Central UniversityTaiwanChung-Li, TaiwanNational Central University, Chung-Li, Taiwan

W. Li

Massachusetts Institute of Technology, Cambridge, MA, USAMassachusetts Institute of TechnologyUSACambridge, MA, USAMassachusetts Institute of Technology, Cambridge, MA, USA

W.T. Lin

National Central University, Chung-Li, TaiwanNational Central UniversityTaiwanChung-Li, TaiwanNational Central University, Chung-Li, Taiwan

S. Manly

University of Rochester, Rochester, NY, USAUniversity of RochesterUSARochester, NY, USAUniversity of Rochester, Rochester, NY, USA

A.C. Mignerey

University of Maryland, College Park, MD, USAUniversity of MarylandUSACollege Park, MD, USAUniversity of Maryland, College Park, MD, USA

R. Nouicer

Brookhaven National Laboratory, Upton, NY, USABrookhaven National LaboratoryUSAUpton, NY, USABrookhaven National Laboratory, Upton, NY, USA

A. Olszewski

Institute of Nuclear Physics PAN, Kraków, PolandInstitute of Nuclear Physics PANPolandKraków, PolandInstitute of Nuclear Physics PAN, Kraków, Poland

R. Pak

Brookhaven National Laboratory, Upton, NY, USABrookhaven National LaboratoryUSAUpton, NY, USABrookhaven National Laboratory, Upton, NY, USA

C. Reed

Massachusetts Institute of Technology, Cambridge, MA, USAMassachusetts Institute of TechnologyUSACambridge, MA, USAMassachusetts Institute of Technology, Cambridge, MA, USA

E. Richardson

University of Maryland, College Park, MD, USAUniversity of MarylandUSACollege Park, MD, USAUniversity of Maryland, College Park, MD, USA

C. Roland

Massachusetts Institute of Technology, Cambridge, MA, USAMassachusetts Institute of TechnologyUSACambridge, MA, USAMassachusetts Institute of Technology, Cambridge, MA, USA

G. Roland

Massachusetts Institute of Technology, Cambridge, MA, USAMassachusetts Institute of TechnologyUSACambridge, MA, USAMassachusetts Institute of Technology, Cambridge, MA, USA

J. Sagerer

University of Illinois at Chicago, Chicago, IL, USAUniversity of Illinois at ChicagoUSAChicago, IL, USAUniversity of Illinois at Chicago, Chicago, IL, USA

I. Sedykh

Brookhaven National Laboratory, Upton, NY, USABrookhaven National LaboratoryUSAUpton, NY, USABrookhaven National Laboratory, Upton, NY, USA

C.E. Smith

University of Illinois at Chicago, Chicago, IL, USAUniversity of Illinois at ChicagoUSAChicago, IL, USAUniversity of Illinois at Chicago, Chicago, IL, USA

M.A. Stankiewicz

Brookhaven National Laboratory, Upton, NY, USABrookhaven National LaboratoryUSAUpton, NY, USABrookhaven National Laboratory, Upton, NY, USA

P. Steinberg

Brookhaven National Laboratory, Upton, NY, USABrookhaven National LaboratoryUSAUpton, NY, USABrookhaven National Laboratory, Upton, NY, USA

G.S.F. Stephans

Massachusetts Institute of Technology, Cambridge, MA, USAMassachusetts Institute of TechnologyUSACambridge, MA, USAMassachusetts Institute of Technology, Cambridge, MA, USA

A. Sukhanov

Brookhaven National Laboratory, Upton, NY, USABrookhaven National LaboratoryUSAUpton, NY, USABrookhaven National Laboratory, Upton, NY, USA

A. Szostak

Brookhaven National Laboratory, Upton, NY, USABrookhaven National LaboratoryUSAUpton, NY, USABrookhaven National Laboratory, Upton, NY, USA

M.B. Tonjes

University of Maryland, College Park, MD, USAUniversity of MarylandUSACollege Park, MD, USAUniversity of Maryland, College Park, MD, USA

A. Trzupek

Institute of Nuclear Physics PAN, Kraków, PolandInstitute of Nuclear Physics PANPolandKraków, PolandInstitute of Nuclear Physics PAN, Kraków, Poland

G.J. van Nieuwenhuizen

Massachusetts Institute of Technology, Cambridge, MA, USAMassachusetts Institute of TechnologyUSACambridge, MA, USAMassachusetts Institute of Technology, Cambridge, MA, USA

S.S. Vaurynovich

Massachusetts Institute of Technology, Cambridge, MA, USAMassachusetts Institute of TechnologyUSACambridge, MA, USAMassachusetts Institute of Technology, Cambridge, MA, USA

R. Verdier

Massachusetts Institute of Technology, Cambridge, MA, USAMassachusetts Institute of TechnologyUSACambridge, MA, USAMassachusetts Institute of Technology, Cambridge, MA, USA

G.I. Veres

Massachusetts Institute of Technology, Cambridge, MA, USAMassachusetts Institute of TechnologyUSACambridge, MA, USAMassachusetts Institute of Technology, Cambridge, MA, USA

P. Walters

University of Rochester, Rochester, NY, USAUniversity of RochesterUSARochester, NY, USAUniversity of Rochester, Rochester, NY, USA

E. Wenger

Massachusetts Institute of Technology, Cambridge, MA, USAMassachusetts Institute of TechnologyUSACambridge, MA, USAMassachusetts Institute of Technology, Cambridge, MA, USA

D. Willhelm

University of Maryland, College Park, MD, USAUniversity of MarylandUSACollege Park, MD, USAUniversity of Maryland, College Park, MD, USA

F.L.H. Wolfs

University of Rochester, Rochester, NY, USAUniversity of RochesterUSARochester, NY, USAUniversity of Rochester, Rochester, NY, USA

B. Wosiek

Institute of Nuclear Physics PAN, Kraków, PolandInstitute of Nuclear Physics PANPolandKraków, PolandInstitute of Nuclear Physics PAN, Kraków, Poland

K. Wozniak

Institute of Nuclear Physics PAN, Kraków, PolandInstitute of Nuclear Physics PANPolandKraków, PolandInstitute of Nuclear Physics PAN, Kraków, Poland

S. Wyngaardt

Brookhaven National Laboratory, Upton, NY, USABrookhaven National LaboratoryUSAUpton, NY, USABrookhaven National Laboratory, Upton, NY, USA

B. Wyslouch

Massachusetts Institute of Technology, Cambridge, MA, USAMassachusetts Institute of TechnologyUSACambridge, MA, USAMassachusetts Institute of Technology, Cambridge, MA, USA

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