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pro vyhledávání: '"M. F. Zoller"'
Autor:
K. G. Chetyrkin, M. F. Zoller
Publikováno v:
Journal of High Energy Physics, Vol 2017, Iss 6, Pp 1-15 (2017)
Abstract We present analytical results at four-loop level for the renormalization constants and anomalous dimensions of an extended QCD model with one coupling constant and an arbitrary number of fermion representations. One example of such a model i
Externí odkaz:
https://doaj.org/article/d87b7853964d457e96be0751b413350d
Autor:
M. F. Zoller
Publikováno v:
Journal of High Energy Physics
We present analytical results for the QCD $\beta$-function extended to the gaugeless limit of the unbroken phase of the Standard Model at four-loop level. Apart from the strong coupling itself we include the top-Yukawa contribution and the Higgs self
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7ce886b1b8f0191e729ddbe2b69aea73
Autor:
M. F. Zoller
Publikováno v:
Journal of High Energy Physics
The correlator of two gluonic operators plays an important role for example in transport properties of a Quark Gluon Plasma (QGP) or in sum rules for glueballs. In [1] an operator product expansion (OPE) at zero temperature was performed for the corr
Autor:
M. F. Zoller
Publikováno v:
Proceedings of The European Physical Society Conference on High Energy Physics — PoS(EPS-HEP 2013).
The discovery of a Higgs particle has triggered numerous theoretical and experimental investigations concerning its production and decay rates and has led to interesting results concerning its interaction with fermions and gauge bosons. The self-inte
Autor:
M. F. Zoller
Publikováno v:
Journal of High Energy Physics. 2013
In this paper analytical results are presented for higher order corrections to coefficient functions of the operator product expansion (OPE) for the correlator of two pseudoscalar gluonium operators \tilde{O}_1=G^{\mu \nu}\tilde{G}_{\mu \nu}. The Wil
Autor:
M. F. Zoller, K.G. Chetyrkin
Publikováno v:
Journal of High Energy Physics. 2013
We analytically compute the QCD, electroweak, Higgs and third generation Yukawa contributions to the \beta-function for the Higgs self-coupling as well as for the Higgs mass parameter in the unbroken phase of the Standard Model at three-loop level.
Autor:
M. F. Zoller, K.G. Chetyrkin
Publikováno v:
Journal of High Energy Physics. 2012
We analytically calculate higher order corrections to coefficient functions of the operator product expansion (OPE) for the Euclidean correlator of two energy-momentum tensors in massless QCD. These are the three-loop contribution to the coefficient
Autor:
M. F. Zoller, K.G. Chetyrkin
Publikováno v:
Journal of High Energy Physics. 2012
We analytically compute the dominant contributions to the \beta-functions for the top-Yukawa coupling, the strong coupling and the Higgs self-coupling as well as the anomalous dimensions of the scalar, gluon and quark fields in the unbroken phase of