The renormalization of the Chern-Simons parameter is investigated by using an exact and manifestly gauge invariant evolution equation for the scale-dependent effective average action.

Genome scans of polymorphisms promise to provide insights into the patterns and frequencies of positive selection under natural conditions. The use of microsatellites as markers has the potential to focus on very recent events, since in contrast to SNPs, their high mutation rates should remove signatures of older events. We assess this concept here in a large-scale study. We have analyzed two p...

The effective string picture of confinement is used to derive theoretical predictions for the interquark potential at finite temperature. At short distances, the leading string correction to the linear confining potential between a heavy quark-antiquark pair is the “Liischer term”. We assume a Nambu-Goto effective string action, and work out subleading contributions in an analytical way. We dis...

We study the “effective string picture” of confinement, deriving theoretical predictions for the interquark potential at finite temperature. At low temperatures, the leading string correction to the linear confining potential between a heavy quarkantiquark pair is the “Lüscher term”. Assuming a Nambu–Goto effective string action, subleading contributions can be worked out in an analytical way. ...

We show here that the Kirchhoff index of a network is the average of the Wiener capacities of its vertices. Moreover, we obtain a closed-form formula for the effective resistance between any pair of vertices when the considered network has some symmetries which allows us to give the corresponding formulas for the Kirchhoff index. In addition, we find the expression for the Foster’s n-th Formula.

Within a theoretical study using both HYLANDER and RQMD, we revisit Bose-Einstein correlation measurements of 200AGeV S+S and 160AGeV Pb+Pb. Transverse flow does not show up in the Bose-Einstein measurements. The decrease of the effective transverse radius parameters with increasing transverse average momentum of the particle pair is largely due to the effect of resonance decays. E. Mail: schle...

The solution structure of the self-complementary DNA decamer 5'd(CTGGATCCAG)2 comprising the specific target site for the restriction endonuclease BamH1 is investigated by using nuclear magnetic resonance sectroscopy and restrained molecular dynamics. With the exception of the H5'/H5" sugar proton resonances, all the nonexchangeable proton resonances are assigned sequentially by using pure-phas...