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4 papers · 2 filters
Non-perturbative construction of counterterms for 2PI-approximation
A. Patkos, Zs. Szep
A concise method is presented for the non-perturbative computation of the counterterms renormalising 2PI-actions. The procedure is presented for a real scalar field up to lambda^2…
Counterterm resummation for 2PI-approximation in constant background
A. Patkos, Zs. Szep
Explicit counterterm construction is presented in a symmetry breaking background for the 2PI effective action of the self-interacting one-component scalar field including skeleton…
Cold Nuclear Modifications at RHIC and LHC
G. G. Barnaföldi, G. Fai, P. Lévai +2
We use recent nuclear parton distributions, among them the Hirai--Kumano--Nagai (HKN) and Eskola--Paukkunen--Salgado (EPS08) parameterizations, in our pQCD-improved parton model to…
Electroweak Precision Constraints on Vector-like Fermions
G. Cynolter, E. Lendvai
We calculate the oblique electroweak corrections and confront with the experiments in an extension of the Standard Model. The new fields added are a vector-like weak doublet and a…