Hartmut Wittig

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Following your need to always fulfil the inspiration to obtain everybody is now simple. Connecting to the internet is one of the short cuts to do. There are so many sources that offer and connect us to other world condition. As one of the products to see in internet, this website becomes a very available place to look for countless intelligent software(More)
We review lattice results related to pion, kaon, Dand B-meson physics with the aim of making them easily accessible to the particle-physics community. More specifically, we report on the determination of the lightquark masses, the form factor f+(0), arising in semileptonic K → π transition at zero momentum transfer, as well as the decay-constant ratio fK /(More)
Continuous media such as audio and video require a certain quality of service (QoS) when transferred through computer networks. The selection of a network route for a particular media stream should hence take into account which route is best-suited for providing this QoS. QoSFinder is a method for QoS-based routing of multimedia streams. It is based on a(More)
Multimedia systems must be able to support a certain quality of service (QoS) to satisfy the stringent real-time performance requirements of their applications. HeiRAT, the Heidelberg Resource Administration Technique, is a comprehensive QoS management system that was designed and implemented in connection with a distributed multimedia platform for(More)
We present results for the reference scale r0 in SU(3) Lattice Gauge Theory for β = 6/g2 0 in the range 5.7 ≤ β ≤ 6.57. The high relative accuracy of 0.3–0.6% in r0/a was achieved through good statistics, the application of a multi-hit procedure and a variational approach in the computation of Wilson loops. A precise definition of the force used to extract(More)
Resource management offers Quality-of-Service reliability for timecritical continuous-media applications. Currently existing resource management systems provide only means to reserve resources starting with the reservation attempt and lasting for an unspecified duration. However, for several applications such as video conferencing the ability to reserve the(More)
Digital and interactive TV systems will bring hundreds of TV program channels to the people. Then, the use of existing strategies for channel selection will fail: It is neither possible to select the program by “surfing” through the channels, nor by using printed program guides. This paper describes a new approach towards creation of a Personal Electronic(More)
The renormalization factor relating the bare to the renormalization group invariant quark masses is accurately calculated in quenched lattice QCD using a recursive finitesize technique. The result is presented in the form of a product of a universal factor times another factor, which depends on the details of the lattice theory but is easy to compute, since(More)
We determine the renormalization group invariant quark mass corresponding to the sum of the strange and the average light quark mass in the quenched approximation of QCD, using as essential input the mass of the K-mesons. In the continuum limit we find (Ms + M̂)/FK = 0.874(29), which includes systematic errors. Translating this nonperturbative result into(More)