GLISSANDO 2 Documentation
GLISSANDO 2 - GLauber Initial State Simulation AND mOre...
ver. 2.506, 10 May 2013
Authors:
Modification of the code to ver. 2.506.
For the detailed description of ver. 1 program and further references to the description of the model, please, refer our Computer Physics Communications 180(2009)69, arXiv:0710.5731 [nucl-th]
accessibile from: http://arxiv.org.abs/0710.5731
Implementation of nuclear correlations in ver. 2 as described in Phys. Rev. C81(2010)064909
Homepage: http://www.pu.kielce.pl/homepages/mryb/GLISSANDO/index.html
GLISSANDO is a Glauber Monte-Carlo generator for early-stages of relativistic heavy-ion collisions, written in c++ and interfaced to ROOT. Several models are implemented: the wounded-nucleon model, the binary collisions model, the mixed model, and the model with hot-spots. The original geometric distribution of sources (i.e., wounded nucleons or binary collisions) in the transverse plane can be superimposed with a statistical distribution simulating the dispersion in the generated transverse energy in each individual collision. The program generates inter alia the fixed axes (standard) and variable-axes (participant) two-dimensional profiles of the density of sources in the transverse plane and their Fourier components. These profiles can be used in further analyses of physical phenomena, such as the the jet quenching, event-by-event hydrodynamics, or analyses of the elliptic flow and its fluctuations. Characteristics of the event (multiplicities, eccentricities, Fourier shape coefficients, etc.) are evaluated and stored in a ROOT file for further off-line studies. A number of scripts is provided for that purpose. The code can also be used for the proton-nucleus and deuteron-nucleus collisions.
Version 2 of GLISSANDO offers much more functionality than version 1, moreover, it is fully object-oriented, providing the user with the flexibility of inspecting and, if needed, modyfying the code in a simple manner. New features involve:
- The possibility of feeding into the simulations the nuclear distributions accounting for the two-body NN correlations (read from external files, see Alvioli, Drescher and Strikman, [Phys. Lett. B680, 225, 2009], the distributions can be found at http://www.phys.psu.edu/~malvioli/eventgenerator/ )
- The use of the Gaussian NN wounding profile (which is more realistic than the commonly-used hard-core wounding profile, see the analysis by Bialas and Bzdak [Acta Phys. Polon. B38, 159,2007])
- The generation of the core-mantle (core-corona) distributions (see Bozek [Acta Phys. Polon. B36, 3071,2005] and Werner [Phys. Rev. Lett. 98, 152301, 2007], see also Becattini and Manninen [Phys. Lett. B673, 19, 2009] and Bozek [Phys. Rev. C79, 054901, 2009])
- The analysis of the triangular shape deformation parameter and profiles, relevant for the triangular flow, see Alver and Roland, [Phys. Rev. C81, 054905, 2010] and Alver, Gombeaud, Luzum,and Ollitrault, [arXiv:1007.5469]
- Generation of rapidity distributions in the wounded-nucleon picture according to the model of Bialas and Czyz [Acta Phys.Polon.B36:905-918,2005], as implemented by Bozek [arXiv:1002.4999]. This allows to obtain the fully 3-dimensional distribution of matter in the early Glauber phase of the collision.
- The generation of initial distributions of nucleons in deformed nuclei according to the deformed Woods-Saxon density with default deformation parameters taken from P.Moller,J.R.Nix,W.D.Mayers, and W.J.Swiatecki [Nucl.Data Tables 59,185,1995].See also W.Broniowski,M.Rybczynski,G.Stefanek [Phys.Rev. C87, 044908, 2013; arXiv:1211.2537]
The reference manual for ver. 2, generated by Doxygen, is supplied at the home page. The full write-up of ver. 2 is under preparation.
The code can be freely used and redistributed. However, if you decide to make modifications, the authors would appreciate notification for the record. Any publication or display of results obtained using GLISSANDO must include a reference to our published paper.
Generated on 10 May 2013 for GLISSANDO 2 by
1.4.7