209 research outputs found
QCD and High Energy Interactions: Moriond 2018 Theory Summary
The highlights of the theory developments presented at the Rencontres de
Moriond 2018 on QCD and High Energy Interactions are summarised and put into
perspective.Comment: 9 pages, contribution to the 53rd Rencontres de Moriond on QCD and
High Energy Interactions (Moriond QCD 2018), La Thuile, Italy, March 17-24,
2018. Version 2: references update
Numerical evaluation of massive multi-loop integrals with SecDec
The program package SecDec is presented, allowing the numerical evaluation of
multi-loop integrals. The restriction to Euclidean kinematics of version 1.0
has been lifted: thresholds can be handled by an automated deformation of the
integration contour into the complex plane. Other new features of the program,
which go beyond the standard decomposition of loop integrals, are also
described. The program is publicly available at http://secdec.hepforge.org.Comment: 6 pages, proceedings of the 11th DESY workshop "Loops and Legs in
Quantum Field Theory", April 2012, Wernigerode, German
Numerical multi-loop calculations with the program SecDec
SecDec is a program which can be used for the evaluation of parametric
integrals, in particular multi-loop integrals. For a given set of propagators
defining the graph, the program constructs the graph polynomials, factorizes
the endpoint singularities, and finally produces a Laurent series in the
dimensional regularization parameter, whose coefficients are evaluated
numerically. In this talk we discuss various features of the program, which
extend the range of applicability. We also present a recent phenomenological
example of an application entering the momentum dependent two-loop corrections
to neutral Higgs boson masses in the MSSM.Comment: 9 pages, 5 figures; contribution to the proceedings of the conference
ACAT 2014 (Advanced Computing and Analysis Techniques in physics), Prague,
Czech Republic, September 201
High precision theory predictions in the Higgs sector
We discuss recent progress in Standard Model predictions related to Higgs boson physics at the LHC and comment on the combination of higher order corrections with potential effects of heavy New Physics parametrised by Effective Field Theories
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