Update of the Binoth les Houches Accord for a standard interface between Monte Carlo tools and one-loop programs
Computer Physics Communications 185:2 (2014) 560-571
Abstract:
We present an update of the Binoth Les Houches Accord (BLHA) to standardise the interface between Monte Carlo programs and codes providing one-loop matrix elements. © 2013 Elsevier B.V. All rights reserved.Update of the Binoth Les Houches Accord for a standard interface between Monte Carlo tools and one-loop programs
Computer Physics Communications Elsevier 185:2 (2014) 560-571
Big-bang nucleosynthesis
Chinese Physics C IOP Publishing 38:9 (2014) 090001
Abstract:
A critical review is given of the current status of cosmological nucleosynthesis. In the framework of the Standard Model with 3 types of relativistic neutrinos, the baryon-to-photon ratio, $\eta$, corresponding to the inferred primordial abundances of deuterium and helium-4 is consistent with the independent determination of $\eta$ from observations of anisotropies in the cosmic microwave background. However the primordial abundance of lithium-7 inferred from observations is significantly below its expected value. Taking systematic uncertainties in the abundance estimates into account, there is overall concordance in the range $\eta = (5.7-6.7)\times 10^{-10}$ at 95% CL (corresponding to a cosmological baryon density $\Omega_B h^2 = 0.021 - 0.025$). The D and He-4 abundances, when combined with the CMB determination of $\eta$, provide the bound $N_\nu=3.28 \pm 0.28$ on the effective number of neutrino species. Other constraints on new physics are discussed briefly.QCD calculations for jet substructure
ArXiv 1311.6514 (2013)
Abstract:
We present results on novel analytic calculations to describe invariant mass distributions of QCD jets with three substructure algorithms: trimming, pruning and the mass-drop taggers. These results not only lead to considerable insight into the behaviour of these tools, but also show how they can be improved. As an example, we discuss the remarkable properties of the modified mass-drop tagger.Towards an understanding of jet substructure
Journal of High Energy Physics Springer Nature 2013:9 (2013) 29