New results on collectivity with CMS

التفاصيل البيبلوغرافية
العنوان: New results on collectivity with CMS
المؤلفون: Milosevic, Jovan
سنة النشر: 2017
المجموعة: Nuclear Experiment
مصطلحات موضوعية: Nuclear Experiment
الوصف: Nonlinear response coefficients of higher-order anisotropy harmonics for charged particles are measured in PbPb collisions at 2.76 and 5.02 TeV as a function of transverse momentum and collision centrality. The nonlinear response coefficients are obtained from $v_{n}$ harmonics measured with respect to their own plane and the mixed harmonics. Additionally, at 5.02 TeV PbPb collisions, a significant negative skewness is observed by a fine splitting between $v_{2}\{4\}$ and $v_{2}\{6\}$ cumulants. The elliptic flow skewness is measured up to 60\% centrality. The results are compared with hydrodynamic models with different shear viscosity to entropy density ratios and initial conditions.
Comment: 6 pages, 8 fugures, LHCP conference contribution
نوع الوثيقة: Working Paper
URL الوصول: http://arxiv.org/abs/1708.09717
رقم الأكسشن: edsarx.1708.09717
قاعدة البيانات: arXiv