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ZEUS Data Preservation project at Max-Planck Institut für Physik

Use default ZEUS password to access password-protected web pages!
The passwords for the virtual machines are given in documentation.

Recently the Data Preservation became an important topic with the High Energy Physics community. The data preservation can be defined an ability to have a continued access to the digital data, materials related to a given experiment and derive a valuable scientific results from those material using contemporary methods and models. Therefore the project consist of the following parts:
  • Experiment documentation preservation.
  • Bit preservation.
  • Software analysis capability preservation.
  • Monte Carlo generation capability preservation.
  • Data preservation documentation.

ZEUS paper archive in DESY

ZEUS notes on InSpire(Please use username and password for ZEUS internal web pages.)

ZEUS data and software usage policy

ZEUS data access

ZEUS data format: Common Ntuples

ZEUS environment

To perform an analysis of ZEUS data some software and environment is needed. It is very likely the ZEUS software will run on the contemporary operation system. However, if that is not the case, there are the following options that should work as a long term solution. To obtain an access to a working ZEUS environment one can
  1. A working environment for ZEUS is preserved on two ZEUS DPHEP machines nafhh-zeus01 or nafhh-zeus02 in DESY. To access these machines DESY account is needed.
  2. A working environment for ZEUS can be obtained in a virtual or real machine with ZEUS software. The last option can be realeased in several ways, which are described below in details.

    1. Download Virtual Box machine image and run it(simplest way).

    2. Prepare a virtual machine by yourself and install the system from DVD(a more advanced example with Virtual Box).

    3. Install CentOS7 on a real machine by yourself.


ZEUS analysis software

ZEUS Monte Carlo event generation

The production of Common Ntuple Monte Carlo simulated samples for ZEUS is a two step procedure. First the hard process should be simulated with a Monte Carlo generator then, the generated events should be passed through detector simulation software and reconstructed in the same way as it is done for the real events. For the simulation of the hard process there are two options:
  1. To use the old Monte Carlo generators available as a part of ZEUS software. See instructions
  2. To use modern Monte Carlo generators. See instructions
After the hard events was simulated, these should be passed throught the detector simulation and then through reconstruction chain. In the detector simulation software the detector and trigger configuretions are deduced from the name of the input file. Therefore the input files for the simulation should be renamed accordingly to the naming rules depending on the desired data-taking period and common ntuple version. Then, the reconstruction software will be chossen accordingly. The detailed instructions on the simulation and production of the common ntuples from the event files are given in canpter ZEUS MC events reconstruction.

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