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pro vyhledávání: '"Bossard, G."'
The invariants in half-maximal supergravity theories in D=4,5 are discussed in detail up to dimension eight (e.g. R^4). In D=4, owing to the anomaly in the rigid SL(2,R) duality symmetry, the restrictions on divergences need careful treatment. In pur
Externí odkaz:
http://arxiv.org/abs/1304.7753
The invariants in D=4, N=4 supergravity are discussed up to the three-loop order (where one expects a general R^4 structure). Because there is an anomaly in the rigid SL(2,R) symmetry of this theory, the analysis of possible restrictions on three-loo
Externí odkaz:
http://arxiv.org/abs/1212.0841
The volume of on-shell D=4, N=8 superspace is shown to vanish. Despite this, it is shown that there is a fully supersymmetric and duality-invariant candidate d^8 R^4 counterterm corresponding to an anticipated seven-loop logarithmic divergence in D=4
Externí odkaz:
http://arxiv.org/abs/1105.6087
Integral invariants in maximally supersymmetric Yang-Mills theories are discussed in spacetime dimensions $4\leq D\leq 10$ for $SU(k)$ gauge groups. It is shown that, in addition to the action, there are three special invariants in all dimensions. Tw
Externí odkaz:
http://arxiv.org/abs/1012.3142
Publikováno v:
JHEP 1101:020,2011
The role of duality symmetries in the construction of counterterms for maximal supergravity theories is discussed in a field-theoretic context from different points of view. These are: dimensional reduction, the question of whether appropriate supers
Externí odkaz:
http://arxiv.org/abs/1009.0743
Publikováno v:
Phys.Lett.B682:137-142,2009
The question of whether BPS invariants are protected in maximally supersymmetric Yang-Mills theories is investigated from the point of view of algebraic renormalisation theory. The protected invariants are those whose cohomology type differs from tha
Externí odkaz:
http://arxiv.org/abs/0908.3883
Publikováno v:
Gen.Rel.Grav.41:919-981,2009
We discuss various approaches to the problem of determining which supersymmetric invariants are permitted as counterterms in maximally supersymmetric super Yang--Mills and supergravity theories in various dimensions. We review the superspace non-reno
Externí odkaz:
http://arxiv.org/abs/0901.4661
Autor:
Bossard, G., Drescher, H. J., Kalmykov, N. N., Ostapchenko, S., Pavlov, A. I., Pierog, T., Vishnevskaya, E. A., Werner, K.
Publikováno v:
Phys.Rev. D63 (2001) 054030
The purpose of this paper is twofold: first we want to introduce a new type of hadronic interaction model (NEXUS), which has a much more solid theoretical basis as, for example, presently used models like QGSJET and VENUS, and ensures therefore a muc
Externí odkaz:
http://arxiv.org/abs/hep-ph/0009119
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