Programs in Physics & Physical Chemistry
|[Licence| Download | New Version Template] adxk_v1_1.tar.gz(1652 Kbytes)|
|Manuscript Title: SANCnews: Sector ffbb|
|Authors: D. Bardin, S. Bondarenko, L. Kalinovskaya, G. Nanava, L. Rumyantsev, W. von Schlippe|
|Program title: SANC|
|Catalogue identifier: ADXK_v1_1|
Distribution format: tar.gz
|Journal reference: Comput. Phys. Commun. 177(2007)738|
|Programming language: Java, FORM3, PERL, FORTRAN.|
|Computer: Intel-based PCs on which Java and FORM3 are available.|
|Operating system: Linux, Windows.|
|RAM: 10 MB|
|Word size: 32|
|Keywords: Feynman diagrams, Perturbation theory, Quantum field theory, Standard Model, Electroweak interactions, QCD, QED, One-loop calculations, Monte Carlo generators.|
|PACS: 11.10.Gh, 11.15.Kc, 11.80.Cr..|
Does the new version supersede the previous version?: Yes
Nature of problem:
Automatic calculation of pseudo- and realistic observables for various processes and decays in the Standard Model of Electroweak interactions, QCD and QED at one-loop precision level. Form factors and helicity amplitudes free of UV divergences are produced. For exclusion of IR singularities the soft photon emission is included.
Numerical computation of analytical formulae of form factors and helicity amplitudes. For simulation of two fermion radiative decays of Standard Model bosons (W±, Z) and the Higgs boson a Monte Carlo technique is used.
Reasons for new version:
Implementation of new processes; extension of an automatic generation of FORTRAN codes by the s2n.f package onto many more processes; bug fixes.
Summary of revisions:
In the current version of SANC there are 3 and 4 particle processes and decays available at one-loop precision level.
The running time depends on the selected process. For instance, the symbolic calculation of form factors (with precomputed building blocks) for H → e+e-Z process takes about 10 sec, helicity amplitudes - about 10 sec, and bremsstrahlung - 1 min 10 sec. The relevant s2n runs take about 2 min 40 sec, 1 sec and 30 sec respectively. The numerical computation of decay rate for this process (production of benchmark case 3 Table) takes about 5 sec (CPU 3GHz IP4, RAM 512Mb, L2 1024 KB).
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