Hadronic Working Group Items for 2007
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Shower Shapes
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Continue test beam validation/comparison : Alberto Ribon
Finish Hadronic Shower Simulation Workshop validations: Dennis Wright
with Alberto Ribon, Gunter Folger
High energy models
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Verify high energy string models at 10-100 GeV: Gunter Folger
Improve QGS model (with Vladimir Grichine): Gunter Folger
Put improved FTF model into physics list: Gunter Folger
Unit testing of internal algorithms of QGS model to correct possible
incorrect implementations (Vladimir Grichine with Gunter Folger)
Improve HEP model energy conservation: Dennis Wright
Begin re-factoring of parameterized code: Dennis Wright
Cascade models
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Examine binary cascade: Gunter Folger
improve coupling to precompound model
make it usable for pions
INCL/ABLA cascade: Aatos Heikkinen
supervise Pekka Kaitaniemi and original developrers (mainly Alain Boudard)
Direct translation to C released in June (OO-designed models to be released
in December)
Unit test and Geant4 example demonstrating the usage of new models.
Also, ROOT usage in data-analysis demonstrated
Bertini Cascade: Aatos Heikkinen
Install/improve Coulumb barrier in Bertini cascade: Aatos Heikkinen
Release sub-model interfaces (evaporation, precompound)
Optimize code for speed
Tune internal cross-sections and nuclear model
Bertini Cascade: Extend pion cross sections to include more pions,
kaons in final state: Dennis Wright
Continued hadronic validation at medium energy: Dennis Wright
includes literature search and compilation of new data
New models:
Begin development of new parameterized model using HARP data: Vladimir Ivanchenko with
Dennis Wright
Heavy Ions
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Validation of binary cascade for heavy ion-ion collisions: Tatsumi Koi
Extend binary cascade or develop new model to handle high Z and
high energy JQMD: Tatsumi Koi
Implementation of additional nucleus-nucleus physics or interfaces with
nucleus-nucleus models: Pete Truscott
Neutrons
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Neutron validation: Alex Howard
Look into n-Tof and MEGAPIE/Isolde as possible benchmarks
Begin migration from G4NDL to Livermore neutron data library format: Tatsumi Koi
this includes developing a new high precision neutron category of
models to eventually replace the existing HP models
Elastic scattering
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Validation and tuning of elastic models: Vladimir Ivanchenko with Dennis Wright
Deliver first version of charge exchange process: Vladimir Ivanchenko
Coherent elastic hadron scattering from nuclei: Nikolai Starkov
optimize calculation of elastic scattering distibution
function (large increase in speed expected).
take into account difference between hadron-proton and
hadron-neutron parameters of elastic scattering amplitude
prepare a generator of quasi-elastic hadron-nucleus scattering summed
over all discrete and continuous parts of the spectra
Cross Sections
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Complete Glauber-Gribov cross sections: Vladimir Grichine
Test Barashenkov (p,n) cross sections: Vladimir Grichine
CHIPS parameterization: Mikhail Kosov
Subtract the CHIPS elastic XS from the total XS measurements and use them
together with the inelastic XS measurements for CHIPS parameterization of
inelastic XS for nucleons
Use the CHIPS parameterization of electromagnetic pA elastic scattering
for a discrete process, which can substitute for multiple scattering
(continuous) process of protons
Use NN and NA elastic XS approximation for simulation of incoherent
quasi-elastic and coherent charge exchange reaction of nucleons on nuclei
Tests and Examples
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Make new advanced example of a sampling calorimeter (HADR02): Vladimir Ivanchenko
Improve tests: Vladimir Ivanchenko
test30 and test35
CHIPS: Mikhail Kossov
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Tuning low energy nucleon-nucleus CHIPS inelastic interaction:
Collect data base of differential multiplicities for the tuning of pA
inelastic interactions, make a test facility (test49) for validation and
tuning of Geant4 inelastic processes
Find an optimal combination of deep inelastic CHIPS nuclear fragmentation
and quasi-elastic (a number of effective quasi-free nucleons)
At medium and high energies generalize quasi-elastic interaction (with
fixed number of effective nucleons) to quasi-free NN interaction (multiple
meson production on quasi-free nucleons).
Develop low energy simulation of antiproton-nuclear interactions
Parameterize elastic and inelastic cross-sectoions
Tune the CHIPS inelastic antiproton-nuclear interactions for low energies
Upgrade photo- and lepto-nuclear single nucleon production
Tune (gamma,n) branching of photo-nuclear reaction;
Convert (n,gamma) cross-sections to (gamma,n) cross-sections
Add quasi-elastic (l,l' N) lepto-nuclear reactions
As soon as the low energy CHIPS program is done for nucleons (and
anti-nucleons), make first steps for CHIPS pion-nuclear.
General:
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Complete error reporting capability based on hadronic whiteboard: Dennis Wright
Isotopes: test masses and abundances: Vladimir Ivanchenko