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0001 <?xml version="1.0"?>
0002 
0003 <!-- Copyright (c) The JETSCAPE Collaboration, 2018 -->
0004 <!-- Modular, task-based framework for simulating all aspects of heavy-ion collisions -->
0005 <!-- For the list of contributors see AUTHORS. -->
0006 <!-- Report issues at https://github.com/JETSCAPE/JETSCAPE/issues -->
0007 <!-- or via email to bugs.jetscape@gmail.com -->
0008 <!-- Distributed under the GNU General Public License 3.0 (GPLv3 or later). -->
0009 <!-- See COPYING for details. -->
0010 
0011  <jetscape>
0012 
0013   <!-- General settings -->
0014   <nEvents> 100 </nEvents>
0015   <setReuseHydro> true </setReuseHydro>
0016   <nReuseHydro> 10 </nReuseHydro>
0017 
0018   <!-- Technical settings -->
0019   <debug> on </debug>
0020   <remark> off </remark>
0021   <vlevel> 0 </vlevel>
0022   <nEvents_printout> 100 </nEvents_printout>
0023   <enableAutomaticTaskListDetermination> true </enableAutomaticTaskListDetermination>
0024 
0025   <!--  JetScape Writer Settings -->
0026   <outputFilename>test_out</outputFilename>
0027   <JetScapeWriterAscii> off </JetScapeWriterAscii>
0028   <JetScapeWriterAsciiGZ> off </JetScapeWriterAsciiGZ>
0029   <JetScapeWriterHepMC> off </JetScapeWriterHepMC>
0030   <JetScapeWriterRootHepMC> off </JetScapeWriterRootHepMC>
0031   <JetScapeWriterFinalStatePartonsAscii> off </JetScapeWriterFinalStatePartonsAscii>
0032   <JetScapeWriterFinalStateHadronsAscii> off </JetScapeWriterFinalStateHadronsAscii>
0033   <write_pthat> 0 </write_pthat>
0034 
0035   <!--  Random Settings. For now, just a global  seed. -->
0036   <!--  Note: It's each modules responsibility to adopt it -->
0037   <!--  Note: Most if not all modules should understand 0 to mean a random value -->
0038   <!--  Note: Both 0 and non-zero values require careful treatment in case of multi-threading -->
0039   <!--           An example implementation is in JetEnergyLossManager.cc -->
0040   <Random>
0041     <seed>0</seed>
0042   </Random>
0043 
0044   <!-- Inital State Module  -->
0045   <IS>
0046     <!-- x range [-grid_max_x, grid_max_x] -->
0047     <!-- y range [-grid_max_y, grid_max_y]-->
0048     <!-- longitudinal range [-grid_max_z, grid_max_z]-->
0049     <!-- in units of [fm] -->
0050     <grid_max_x> 15 </grid_max_x>
0051     <grid_max_y> 15 </grid_max_y>
0052     <grid_max_z> 0.2 </grid_max_z>
0053     <grid_step_x> 0.3 </grid_step_x>
0054     <grid_step_y> 0.3 </grid_step_y>
0055     <grid_step_z> 0.2 </grid_step_z>
0056 
0057     <Trento>
0058     <PhysicsInputs  projectile='Pb'
0059             target='Pb'
0060             sqrts='2760'
0061             cross-section='6.4'
0062             normalization='13.9'>
0063     </PhysicsInputs>
0064     <CutInputs  centrality-low='50'
0065           centrality-high='60'>
0066     </CutInputs>
0067     <TransInputs  reduced-thickness='0.0'
0068             fluctuation="1.2"
0069             nucleon-width="0.9"
0070             nucleon-min-dist="1.2">
0071     </TransInputs>
0072     <LongiInputs  mean-coeff="1.0"
0073             std-coeff="3.0"
0074             skew-coeff="0.0"
0075             skew-type="1"
0076             jacobian="0.8">
0077     </LongiInputs>
0078     </Trento>
0079 
0080     <!-- Options to read initial conditions from saved file  -->
0081     <initial_profile_path>../examples/test_hydro_files</initial_profile_path>
0082   </IS>
0083 
0084   <!-- Hard Process -->
0085   <Hard>
0086 
0087     <!-- Parton Gun test with fixed pT and fixed IS pos = 0  -->
0088     <PGun>
0089       <name>PGun</name>
0090       <pT>100</pT>
0091       <parID>21</parID>
0092     </PGun>
0093 
0094     <!-- Pythia Gun -->
0095     <!-- Sensible defaults are set in the class. ptHat etc. get their own field -->
0096     <PythiaGun>
0097       <name>PythiaGun</name>
0098       <FSR_on>0</FSR_on>
0099       <pTHatMin>100</pTHatMin>
0100       <pTHatMax>120</pTHatMax>
0101       <eCM>5020</eCM>
0102       <!-- The soft momentum cutoff in GeV removes partons from the pythia gun. The default matches the PP19 setup. -->
0103       <softMomentumCutoff>2.0</softMomentumCutoff>
0104       <!-- You can add any number of additional lines to initialize pythia here -->
0105       <!-- Note that if the tag exists it cannot be empty (tinyxml produces a segfault) -->
0106       <LinesToRead>
0107         HardQCD:all = on
0108       </LinesToRead>
0109     </PythiaGun>
0110 
0111     <epemGun>
0112       <name>epemgun</name>
0113       <eCM>5020</eCM>
0114       <!-- You can add any number of additional lines to initialize pythia here -->
0115       <!-- Note that if the tag exists it cannot be empty (tinyxml produces a segfault) -->
0116       <LinesToRead>
0117         HadronLevel::all = off
0118       </LinesToRead>
0119     </epemGun>
0120   </Hard>
0121 
0122   <!--Eloss Modules -->
0123   <!-- Individual Eloss Modules run Eloss and Eloss Manager  -->
0124   <Eloss>
0125 
0126     <deltaT>0.1</deltaT>
0127     <formTime> -0.1</formTime>
0128     <maxT>20</maxT>
0129     <tStart> 0.6 </tStart> <!-- Start time of jet quenching, proper time, fm/c   -->
0130     <mutex>ON</mutex>
0131     <AddLiquefier> false </AddLiquefier>
0132 
0133     <Matter>
0134       <name>Matter</name>
0135       <matter_on> 1 </matter_on>
0136       <Q0> 2.0 </Q0>
0137       <T0> 0.16 </T0>
0138       <vir_factor> 0.25 </vir_factor>
0139       <in_vac> 1 </in_vac>
0140       <recoil_on> 0 </recoil_on>
0141       <broadening_on> 0 </broadening_on>
0142       <brick_med> 0 </brick_med>   <!-- Set brick_med to 1 while using Brick Hydro module-->
0143       <brick_length> 5.0 </brick_length>
0144       <hydro_Tc> 0.16 </hydro_Tc>
0145       <!-- Pick a qhat formula -->
0146       <!-- Type=0 : HTL Formula with both alpha_s fixed  -->
0147       <!-- Type=1 : HTL Formula with one running alpha_s and one fixed alpha_s  -->
0148       <!-- Type=2 : Constant q-hat; qhat=qhat0   -->
0149       <!-- Type=3 : qhat=qhat0*T^3  -->
0150       <!-- Type=4 : qhat=qhat0*s; s=entropy density  -->
0151       <!-- Type=5 : HTL q-hat with Virtuality dependent function 1/(1+A*pow(ln(Q2),2) + B*pow(ln(Q2),4))  -->
0152       <!-- Type=6 : HTL q-hat with Virtuality dependent function int e^{-Cx}/(1+A*pow(ln(Q2),1) + B*pow(ln(Q2),2)) -->
0153       <!-- Type=7 : HTL q-hat with Virtuality dependent function  int x^{C}(1-x)^{D}/(1+A*pow(ln(Q2),1) + B*pow(ln(Q2),2))-->
0154       <QhatParametrizationType> 0 </QhatParametrizationType>
0155       <qhat0> -2.0 </qhat0>  <!-- If Type=0, 1, 5,6,7 set qhat0 as negative since alphas will be used-->
0156       <alphas> 0.25 </alphas>
0157       <qhatA> 10.0 </qhatA>    <!-- Always positive, Used only if QhatParametrizationType=5,6,7  -->
0158       <qhatB> 10.0 </qhatB>    <!-- Always positive, Used only if QhatParametrizationType=5,6,7  -->
0159       <qhatC> 1.0 </qhatC>    <!-- (0,100) for Type=6, and (-10,100) for Type=7, Used only if QhatParametrizationType=6,7  -->
0160       <qhatD> 0.0 </qhatD>    <!-- (-10,100), Used only if QhatParametrizationType=7  -->
0161     </Matter>
0162 
0163     <Lbt>
0164       <name> Lbt </name>
0165       <Q0> 2.0 </Q0>
0166       <in_vac> 0 </in_vac>
0167       <only_leading> 0 </only_leading>
0168       <hydro_Tc> 0.16 </hydro_Tc>
0169       <alphas> 0.2 </alphas>
0170       <run_alphas>1</run_alphas>   <!-- 0 for fixed alpha_s and 1 for running alpha_s -->
0171     </Lbt>
0172 
0173     <Martini>
0174       <name > Martini </name>
0175       <Q0> 2.0 </Q0>
0176       <alpha_s> 0.3 </alpha_s>
0177       <pcut> 2.0 </pcut>
0178       <hydro_Tc> 0.16 </hydro_Tc>
0179       <recoil_on> 0 </recoil_on>
0180       <run_alphas>1</run_alphas>
0181       <path>../src/jet/Martini/</path>
0182     </Martini>
0183 
0184     <AdSCFT>
0185       <name> AdSCFT </name>
0186       <kappa> 0.36 </kappa>
0187       <T0> 0.16 </T0>
0188       <Q0> 2.0 </Q0>
0189       <in_vac> 0 </in_vac>
0190     </AdSCFT>
0191 
0192   </Eloss>
0193 
0194   <PartonPrinter>
0195       <Status>off</Status>
0196       <FileName>./FinalPartonsInfo.dat</FileName>
0197   </PartonPrinter>
0198 
0199   <!--Preequilibrium Dynamics Module -->
0200   <Preequilibrium>
0201 
0202     <!-- starting long. proper time for Preequilibrium dynamics -->
0203     <tau0>0.1</tau0>
0204     <!-- switching long. proper time from Preequilibrium dynamics to Hydrodynamics (Landau Matching) -->
0205     <taus>0.2</taus>
0206 
0207     <!-- Individual Preequilibrium Dynamics models  -->
0208     <FreestreamMilne>
0209       <name>FreestreamMilne</name>
0210       <freestream_input_file>freestream_input</freestream_input_file>
0211     </FreestreamMilne>
0212 
0213     <NullPreDynamics> </NullPreDynamics>
0214 
0215   </Preequilibrium>
0216 
0217 
0218   <!-- Create liquifier -->
0219   <Liquefier>
0220       <!-- CausalLiquefier -->
0221       <CausalLiquefier>
0222           <name>CausalLiquefier</name>
0223           <dtau>0.02</dtau><!-- fluid time step in [fm] -->
0224           <dx>0.3</dx><!-- fluid cell size in [fm] -->
0225           <dy>0.3</dy><!-- fluid cell size in [fm] -->
0226           <deta>0.2</deta><!-- fluid cell size -->
0227           <tau_delay>2.0</tau_delay><!-- in [fm] -->
0228           <time_relax>0.1</time_relax><!-- in [fm] -->
0229           <d_diff>0.08</d_diff><!-- in [fm] -->
0230           <width_delta>0.1</width_delta><!-- in [fm] -->
0231       </CausalLiquefier>
0232   </Liquefier>
0233 
0234   <!-- Hydro  Module  -->
0235   <Hydro>
0236 
0237     <AddLiquefier> false </AddLiquefier>
0238 
0239     <!-- Test Brick if bjorken_expansion_on="true", T(t) = T * (start_time[fm]/t)^{1/3} -->
0240     <Brick bjorken_expansion_on="false" start_time="0.6">
0241       <name>Brick</name>
0242       <T>0.2</T>
0243     </Brick>
0244 
0245     <!-- Test Gubser  -->
0246     <Gubser>
0247     </Gubser>
0248 
0249     <!-- Hydro from a file  -->
0250     <hydro_from_file>
0251       <name>Hydro from file </name>
0252       <read_in_multiple_hydro>1</read_in_multiple_hydro>
0253       <hydro_files_folder>../examples/test_hydro_files</hydro_files_folder>
0254 
0255       <!-- read in file type  -->
0256       <!-- hydro_type == 1 read in evo file from VISHNew -->
0257       <!-- hydro_type == 2 read in evo file from MUSIC -->
0258       <hydro_type>1</hydro_type>
0259 
0260       <boost_invariant_>1</boost_invariant_>
0261       <!-- VISHNew hydro evolution filename (hdf5 format) -->
0262       <VISH_file>../examples/test_hydro_files/VISH_evo.h5</VISH_file>
0263       <!-- flag whether read in viscous information -->
0264       <!-- (only works for VISHNew evo files) -->
0265       <load_viscous_info>0</load_viscous_info>
0266 
0267       <!-- MUSIC hydro evolution filename (plain binary format) -->
0268       <!-- the associated input file specifies the grid information -->
0269       <MUSIC_input_file>../examples/test_hydro_files/MUSIC_input</MUSIC_input_file>
0270       <MUSIC_file>../examples/test_hydro_files/MUSIC_evo.dat</MUSIC_file>
0271       <!-- transition temperature between QGP and Hadron Resonance Gas -->
0272       <T_c>0.154</T_c>
0273 
0274       <!-- read in hydro evo file every Ntau step -->
0275       <!-- (only works for MUSIC evo files) -->
0276       <read_hydro_every_ntau>1</read_hydro_every_ntau>
0277     </hydro_from_file>
0278 
0279     <!-- MUSIC  -->
0280     <MUSIC>
0281       <name>MUSIC</name>
0282       <MUSIC_input_file>music_input</MUSIC_input_file>
0283       <beastMode>0</beastMode>
0284       <Initial_time_tau_0>0.5</Initial_time_tau_0>
0285       <output_evolution_to_file>1</output_evolution_to_file>
0286       <shear_viscosity_eta_over_s>0.08</shear_viscosity_eta_over_s>
0287       <T_dependent_Shear_to_S_ratio>0</T_dependent_Shear_to_S_ratio>
0288       <eta_over_s_T_kink_in_GeV>0.16</eta_over_s_T_kink_in_GeV>
0289       <eta_over_s_low_T_slope_in_GeV>0.</eta_over_s_low_T_slope_in_GeV>
0290       <eta_over_s_high_T_slope_in_GeV>0.</eta_over_s_high_T_slope_in_GeV>
0291       <eta_over_s_at_kink>0.08</eta_over_s_at_kink>
0292       <temperature_dependent_bulk_viscosity>0</temperature_dependent_bulk_viscosity>
0293       <zeta_over_s_max>0</zeta_over_s_max>
0294       <zeta_over_s_T_peak_in_GeV>0.18</zeta_over_s_T_peak_in_GeV>
0295       <zeta_over_s_width_in_GeV>0.02</zeta_over_s_width_in_GeV>
0296       <zeta_over_s_lambda_asymm>0.0</zeta_over_s_lambda_asymm>
0297       <Include_second_order_terms>1</Include_second_order_terms>
0298       <freezeout_temperature>-1</freezeout_temperature>
0299       <Perform_CooperFrye_Feezeout>0</Perform_CooperFrye_Feezeout>
0300     </MUSIC>
0301 
0302     <!-- CLVisc  -->
0303     <CLVisc>
0304       <name>CLVisc</name>
0305       <cpu_block_size>1</cpu_block_size>
0306       <gpu_block_size>64</gpu_block_size>
0307       <device_type>gpu</device_type>
0308       <device_id> 0 </device_id>
0309       <etaos_xmin> 0.15 </etaos_xmin>
0310       <etaos_ymin> 0.08 </etaos_ymin>
0311       <etaos_left_slop> 0.0 </etaos_left_slop>
0312       <etaos_right_slop> 0.0 </etaos_right_slop>
0313       <tau0> 0.6 </tau0>
0314       <!-- *_skip is used to save less bulk data -->
0315       <ntau_skip> 10 </ntau_skip>
0316       <nx_skip> 2 </nx_skip>
0317       <ny_skip> 2 </ny_skip>
0318       <netas_skip> 2 </netas_skip>
0319       <!-- scale_factor: scale the initial entropy/energy density -->
0320       <scale_factor> 57 </scale_factor>
0321       <dtau> 0.02 </dtau>
0322       <result_directory>./</result_directory>
0323       <Perform_CooperFrye_Feezeout>0</Perform_CooperFrye_Feezeout>
0324     </CLVisc>
0325 
0326   </Hydro>
0327 
0328   <!-- Jet Hadronization Module -->
0329    <JetHadronization>
0330        <name>colored/colorless/hybrid</name>
0331        <take_recoil>1</take_recoil>
0332        <!--eCMforHadronization only for pp collisions-->
0333        <!--in hybrid put the full eCM here, this is distributed to the beam partons-->
0334        <eCMforHadronization>5020</eCMforHadronization>
0335        <reco_Mlevelmax>1</reco_Mlevelmax>
0336        <reco_Blevelmax>1</reco_Blevelmax>
0337        <reco_goldstone>0</reco_goldstone>
0338        <thermreco_distmax>5.0</thermreco_distmax>
0339        <shower_recofactor>1.0</shower_recofactor>
0340        <thermal_recofactor>1.0</thermal_recofactor>
0341        <recobias_t>0</recobias_t>
0342        <hydro_Tc>0.16</hydro_Tc>
0343        <eta_max_boost_inv>2.0</eta_max_boost_inv> <!--only relevant for boost invariant hydro, max eta for thermal parton sampler-->
0344        <had_postprop>0.0</had_postprop>
0345        <part_prop>1.0</part_prop>
0346        <pythia_decays>on</pythia_decays> <!-- lets the particles given to pythia decay-->
0347        <tau0Max>10.0</tau0Max> <!-- only particles with tau0 < tau0Max (given in mm/c) can decay, increase to include weak decays-->
0348        <weak_decays>depracted</weak_decays> <!-- use the parameters pythia_decays and tau0Max, this parameter is only a dummy to make old xml files work-->
0349        <!-- You can add any number of additional lines to initialize pythia hadronization here -->
0350        <!-- Note that if the tag exists it cannot be empty (tinyxml produces a segfault) -->
0351        <!-- <LinesToRead> -->
0352        <!--   111:mayDecay = off  -->
0353        <!-- </LinesToRead> -->
0354        <reco_hadrons_in_pythia>1</reco_hadrons_in_pythia>
0355        <!-- Switch to include more pythia particles from an additional xml file with particle information -->
0356        <additional_pythia_particles>0</additional_pythia_particles>
0357        <!-- Path to file with additional particles for pythia (for higher reco_Mlevelmax)-->
0358        <additional_pythia_particles_path>../config/HH_LightExcitedMesons.xml</additional_pythia_particles_path>
0359    </JetHadronization>
0360 
0361   <!-- Particlization Module  -->
0362   <SoftParticlization>
0363     <!-- iSpectraSampler -->
0364     <iSS>
0365       <!-- read in file type  -->
0366       <!-- hydro_mode == 0 read in surface file from VISHNew -->
0367       <!-- hydro_mode == 1 read in surface file from MUSIC (2+1)D -->
0368       <!-- hydro_mode == 2 read in surface file from MUSIC (3+1)D -->
0369       <hydro_mode>1</hydro_mode>
0370 
0371       <!-- file path for the default input file  -->
0372       <iSS_input_file>../external_packages/iSS/iSS_parameters.dat</iSS_input_file>
0373       <!-- directory path where the hydro surface is stored  -->
0374       <iSS_working_path>.</iSS_working_path>
0375       <!-- file path for the default table files  -->
0376       <iSS_table_path>../external_packages/iSS/iSS_tables</iSS_table_path>
0377       <!-- file path for the default particle table files  -->
0378       <iSS_particle_table_path>../external_packages/iSS/iSS_tables</iSS_particle_table_path>
0379       <!-- hadron species list  0: PDG 2005; 1: UrQMD; 2: SMASH -->
0380       <afterburner_type>1</afterburner_type>
0381 
0382       <number_of_repeated_sampling>1</number_of_repeated_sampling>
0383       <Perform_resonance_decays>1</Perform_resonance_decays>
0384     </iSS>
0385   </SoftParticlization>
0386 
0387   <!-- Hadronic Afterburner  -->
0388   <Afterburner>
0389     <!-- fragmentation hadrons in the afterburner only possible with hybrid hadronization-->
0390     <include_fragmentation_hadrons>0</include_fragmentation_hadrons>
0391     <!-- only the afterburner hadrons are written to a file -->
0392     <!-- if fragmentation hadrons are not included in the afterburner they are also written  -->
0393     <output_only_final_state_hadrons>1</output_only_final_state_hadrons>
0394     <!-- SMASH -->
0395     <SMASH>
0396       <name>SMASH</name>
0397       <SMASH_config_file>../external_packages/smash/smash_config.yaml</SMASH_config_file>
0398       <SMASH_particles_file>../external_packages/smash/smash_code/input/particles.txt</SMASH_particles_file>
0399       <SMASH_decaymodes_file>../external_packages/smash/smash_code/input/decaymodes.txt</SMASH_decaymodes_file>
0400       <!-- time in fm/c in the computational frame, when the simulation shoud be ended -->
0401       <end_time>300.0</end_time>
0402       <!-- 0 - run the full afterburner, 1 - only decay the resonances without even propagation -->
0403       <only_decays>0</only_decays>
0404     </SMASH>
0405   </Afterburner>
0406 </jetscape>