37 research outputs found
The leading two loop counterterm in the nonleptonic weak sector of CHPT
We calculate the leading divergences at NNLO for the octet part of the
nonleptonic weak sector of chiral perturbation theory, using renormalization
group methods. The role of counterterms which vanish at the equation of motion
and their use to simplify the calculation is shown explicitly. The obtained
countertem Lagrangian can be employed to calculate the chiral double log
contributions of quantities in this sector, most notably the K --> pi pi
amplitude. The double log contribution of the latter is discussed in a separate
paper.Comment: 28 pages, 3 figures, uses axodra
Snapshot-Based Methods and Algorithms
An increasing complexity of models used to predict real-world systems leads to the need for algorithms to replace complex models with far simpler ones, while preserving the accuracy of the predictions. This two-volume handbook covers methods as well as applications. This second volume focuses on applications in engineering, biomedical engineering, computational physics and computer science
The metron model: Elements of a unified deterministic theory of fields and particles
Keywords (parts 1-4): metron / unified theory / wave particle duality /
higher-dimensional gravity / solitons / Maxwell-Dirac-Einstein system /
Standard Model / EPR paradox / Bell's theorem / arrow of timeComment: 141 pages, LaTeX2
Phase transitions in quantum chromodynamics
The current understanding of finite temperature phase transitions in QCD is
reviewed. A critical discussion of refined phase transition criteria in
numerical lattice simulations and of analytical tools going beyond the
mean-field level in effective continuum models for QCD is presented.
Theoretical predictions about the order of the transitions are compared with
possible experimental manifestations in heavy-ion collisions. Various places in
phenomenological descriptions are pointed out, where more reliable data for
QCD's equation of state would help in selecting the most realistic scenario
among those proposed. Unanswered questions are raised about the relevance of
calculations which assume thermodynamic equilibrium. Promising new approaches
to implement nonequilibrium aspects in the thermodynamics of heavy-ion
collisions are described.Comment: 156 pages, RevTex. Tables II,VIII,IX and Fig.s 1-38 are not included
as postscript files. I would like to ask the requestors to copy the missing
tables and figures from the corresponding journal-referenc
Model Order Reduction
An increasing complexity of models used to predict real-world systems leads to the need for algorithms to replace complex models with far simpler ones, while preserving the accuracy of the predictions. This two-volume handbook covers methods as well as applications. This second volume focuses on applications in engineering, biomedical engineering, computational physics and computer science