Dependence of Elliptic Flow on Transverse Momentum in (SNN) =200 GeV Au-Au and (SNN) =2.76 TeV Pb-Pb Collisions

• 来源期刊: 中国物理快报（英文版）
• 年，卷（期）: 2012,（7）
• 页码范围: 67-70
• 页数: 4页
• 语种: 英文
• DOI: 10.1088/0256-307X/29/7/072501

摘要

We investigate the dependence of elliptic flows v2 on transverse momentum PT for charged hadrons produced in nucleus-nucleus collisions at high energy by using a multi-source thermal model,where the contribution of source interactions is considered.Our calculated results are approximately in agrcement with the experimental data over a wider PT range from the PHENIX and ALICE collaborations.It is found that the expansion factor increases linearly with the impact parameter from most central (0-5％) to mid-peripheral (35-40％) collisions.