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相关论文: Initial conditions from the shadowed Glauber model

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The centrality determination and the estimated fluctuations of number of participant nucleons $N_{part}$ in Au-Au collisions at 1.23 $A$GeV beam kinetic energy suffers from severe model dependencies. Comparing the Glauber Monte Carlo (MC)…

高能物理 - 唯象学 · 物理学 2023-09-14 Manjunath Omana Kuttan , Jan Steinheimer , Kai Zhou , Marcus Bleicher , Horst Stoecker

Predictions of elliptic flow ($v_2$) and nuclear modification factor ($R_{AA}$) are provided as a function of centrality in U + U collisions at $\sqrt{s_{_{NN}}}$ = 200 GeV. Since the $^{238}$U nucleus is naturally deformed, one could…

核理论 · 物理学 2009-11-05 Hiroshi Masui , Bedangadas Mohanty , Nu Xu

The centrality dependence of pseudorapidity density of charged particles ($ dN_{ch}/d\eta $) in $Cu+Cu$ ($Au+Au$) collisions at RHIC energy of $ \sqrt{s_{_{\rm NN}}}=22.4$ , $62.4 $ and $200$ ($19.6$, $62.4$ and $200$) GeV, is investigated…

高能物理 - 唯象学 · 物理学 2017-12-25 Khaled Abdel-Waged , Nuha Felemban

In nucleon-nucleon collisions, charged particle's multiplicity fluctuates. We have studied the effect of multiplicity fluctuation on flow harmonics in nucleus-nucleus collision in event-by-event hydrodynamics. Assuming that the charged…

核理论 · 物理学 2013-04-03 A. K. Chaudhuri

The phenomenon of shadowing of nuclear structure functions at small values of Bjorken-$x$ is analyzed. First, multiple scattering is discussed as the underlying physical mechanism. In this context three different but related approaches are…

高能物理 - 唯象学 · 物理学 2014-11-18 N. Armesto

The recently published first measurement of charged hadron multiplicity density at mid-rapidity $dN_{ch}/d\eta=1584 \pm 4 ({\rm stat.}) \pm 76 ({\rm sys.})$ in central $Pb+Pb$ collisions at $\sqrt{s} = 2.76$ TeV by the ALICE Experiment at…

核理论 · 物理学 2011-08-19 Wei-tian Deng , Xin-Nian Wang , Rong Xu

In the framework of various Glauber-like models we compute several correlation observables in nuclear collisions at the SPS, RHIC, and LHC energies. We analyze fluctuations of the eccentricity of the fireball created in the collision, in…

核理论 · 物理学 2009-02-24 Maciej Rybczynski , Wojciech Broniowski , Piotr Bozek

In this paper, we investigate various ways of defining the initial source eccentricity using the Monte Carlo Glauber (MCG) approach. In particular, we examine the participant eccentricity, which quantifies the eccentricity of the initial…

Multiple initial state parton interactions in p(d)+Au collisions are calculated in a Glauber-Eikonal formalism. The convolution of perturbative QCD parton-nucleon cross sections predicts naturally the competing pattern of low-pT suppression…

核理论 · 物理学 2009-10-09 Alberto Accardi , Miklos Gyulassy

We explore Glauber Monte Carlo predictions for the planned ultra-relativistic ${}^{16}{\rm O}$+${}^{16}{\rm O}$ and p+${}^{16}{\rm O}$ collisions, as well as for collisions of ${}^{16}{\rm O}$ on heavy targets. In particular, we present…

高能物理 - 唯象学 · 物理学 2020-01-01 Maciej Rybczyński , Wojciech Broniowski

We investigate the effect of nucleon-nucleon correlations on the initial condition of ultra-central heavy ion collisions at LHC energies. We calculate the eccentricities of the MC-Glauber and IP-Glasma models in the 0--1% centrality class…

核理论 · 物理学 2014-07-01 G. S. Denicol , C. Gale , S. Jeon , J. -F. Paquet , B. Schenke

This work presents data analysis on Pb-Pb collisions at $\sqrt{s_{\rm NN}}$=2.76 TeV with centrality $40\%-50\%$. We present introduction and Monte-Carlo simulation results of the Glauber model, which shed light on the initial geometric…

高能物理 - 实验 · 物理学 2022-07-13 Ce-ran Hu , Wen-tao He , Cheng-ze Lyu , Kang-jie Yang , Lily Yao , Rui-chong Zhao

We re-examine the predictions of a two-phase model of shadowing in nuclear deep-inelastic scattering in light of new NMC data on the x, A and Q**2 dependence of the ratios of structure functions. The model, which combines vector meson…

高能物理 - 唯象学 · 物理学 2008-11-26 W. Melnitchouk , A. W. Thomas

We introduce a modified form of the Kharzeev-Levin-Nardi (KLN) approach for nuclear collisions. The new ansatz for the unintegrated gluon distribution function preserves factorization, and the saturation scale is bound from below by that…

核理论 · 物理学 2008-11-26 H. -J. Drescher , Y. Nara

In this work we present a study of the influence of nucleus initializations on the event-by-event elliptic flow coefficient, $v_2$. In most Monte-Carlo models, the initial positions of the nucleons in a nucleus are completely uncorrelated,…

高能物理 - 唯象学 · 物理学 2017-02-01 B. M. Tavares , H. -J. Drescher , T. Kodama

Multiple initial state parton interactions in p(d)+A collisions are calculated in a Glauber-Eikonal formalism, which incorporates the competing pattern of low-pT suppression due geometrical shadowing, and a moderate-pT Cronin enhancement of…

核理论 · 物理学 2009-10-09 Alberto Accardi , Miklos Gyulassy

Non-trivial geometrical effects in relativistic central collisions of deformed nuclei are studied using a simple version of optical Glauber model. For very small impact parameters large centrality and eccentricity fluctuations are observed.…

核理论 · 物理学 2008-11-26 Peter Filip

Due to gluon saturation, the growth of the inelastic nucleon-nucleon cross section with increasing collision energy sqrt(s) results in a broadening of the nucleon's density distribution in position space. This leads to a natural smoothing…

核理论 · 物理学 2012-10-08 Ulrich W. Heinz , J. Scott Moreland

The ability to accurately compute the series of coefficients $v_n$ characterizing the momentum space anisotropies of particle production in ultrarelativistic heavy ion collisions as a function of centrality is widely regarded as a triumph…

核理论 · 物理学 2014-06-25 Thorsten Renk , Harri Niemi

In the framework of the Glauber model as implemented in GLISSANDO 2, we study the fluctuations of flow harmonics in Pb+Pb collisions at the LHC centre-of-mass energy of 2.76 TeV. The model with wounded nucleons and the admixture of binary…

核理论 · 物理学 2016-05-25 Maciej Rybczynski , Wojciech Broniowski