Computer algebra and higher orders in particle theory

Deutsches Elektronen-Synchrotron DESY
Platanenallee 6
D-15738 Zeuthen

Universität Würzburg
Lehrstuhl für Theoretische Physik II
Institut für Theoretische Physik und Astrophysik
Am Hubland
97074 Würzburg

Particle physics at high-energy collider experiments requires a quantitative understanding of strong and electroweak hard scattering processes to very high accuracy. The proposed research group aims at this task of precision phenomenology by means of perturbative calculations to higher orders, where computer algebra is an indispensable tool for computations at the two- or three-loop level. Expertise in this area has been acquired in a complete next-to-next-to-leading order calculation for deep-inelastic structure functions as measured very precisely at HERA.

Together with the partners at Würzburg University the research group will target a number of strategic issues and physical observables which will play a key role in precision physics at HERA, the LHC and a potential ILC. Research topics include the strong coupling constant and parton distributions from HERA, scattering processes with massive particles to two loops, for instance top-quark production at the LHC or a future ILC, and Drell-Yan-like scattering processes at the LHC to three loops. The projects will be realized in active pursuit of the mission of the Helmholtz association with respect to cooperation with universities, and they will stimulate education and training of students and young researchers.

Leader of the Young Investigators Group of Helmholtz:

Dr. S.-O. Moch
Deutsches Elektronen-Synchrotron
Platanenallee 6
D-15738 Zeuthen
Office: 3L/04
Tel. : +49 337627-7383
Email :

Weiterführende Links
application/pdf Sachbericht 2005 (22KB)
application/pdf Sachbericht 2006 (16KB)
application/pdf Sachbericht 2007 (21KB)
application/pdf Sachbericht 2008 (1.7 MB)