An Extension of the Molecular Simulator GEMS to Calculate the Signal of Crossed Beam Experiments

  • Antonio Laganá
  • Nadia Balucani
  • Stefano Crocchianti
  • Piergiorgio Casavecchia
  • Ernesto Garcia
  • Amaia Saracibar
Part of the Lecture Notes in Computer Science book series (LNCS, volume 6784)


By exploiting the potentialities of collaborative work and of high throughput computing on the grid platform recently deployed within the European Grid Initiative and made available to the virtual organization COMPCHEM, it has been possible to extend GEMS, a simulator of molecular systems, to reproduce in an ab initio fashion the signal measured in molecular beam experiments. As a case study the crossed beam experiment measuring the differential cross section of the OH(v OH = 0,j OH = 0) + CO(v CO = 0,j CO = 0) → H + CO2 reaction has been considered. The results of the calculations provide a univocal evaluation of the accuracy of the ab initio potential energy surfaces proposed in the literature.


molecular simulators grid computing 


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Copyright information

© Springer-Verlag Berlin Heidelberg 2011

Authors and Affiliations

  • Antonio Laganá
    • 1
  • Nadia Balucani
    • 1
  • Stefano Crocchianti
    • 1
  • Piergiorgio Casavecchia
    • 1
  • Ernesto Garcia
    • 2
  • Amaia Saracibar
    • 2
  1. 1.Dipartimento di ChimicaUniversità degli Studi di PerugiaPerugiaItaly
  2. 2.Departamento de Quimica FisicaUniversidad del Pais VascoVitoriaSpain

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