%0 Journal Article %T Single mass scale diagrams: construction of a basis for the $ŠĆ$-expansion %A J. Fleischer %A M. Yu. Kalmykov %J Physics %D 1999 %I arXiv %R 10.1016/S0370-2693(99)01321-0 %X Exploring the idea of Broadhurst on the ``sixth root of unity'' we present an ansatz for construction of a basis of transcendental numbers for the epsilon-expansion of single mass scale diagrams with two particle massive cut. As example, several new two- and three-loop master integrals are calculated. %U http://arxiv.org/abs/hep-ph/9910223v3