Zobrazeno 1 - 10
of 91
pro vyhledávání: '"Janowski, Tadeusz"'
We present the first analytic ${\cal O}(\alpha_s)$-computation at twist-$1$,$2$ of the $\bar B_{u,d,s} \to \gamma$ form factors within the framework of sum rules on the light-cone. These form factors describe the charged decay $\bar B_u \to \gamma \e
Externí odkaz:
http://arxiv.org/abs/2106.13616
We calculate the coupling between a vector resonance and two Goldstone bosons in $SU(2)$ gauge theory with $N_f=2$ Dirac fermions in the fundamental representation. The considered theory can be used to construct a minimal Composite Higgs models. The
Externí odkaz:
http://arxiv.org/abs/2012.09761
Composite Higgs models are promising candidate models to address the long-standing naturalness problem in the Standard Model. Among them, the most minimal one is the SU(2) with 2 flavours of fermions in the fundamental representation of the gauge gro
Externí odkaz:
http://arxiv.org/abs/1910.13847
Autor:
Hermansson-Truedsson, Nils, Bijnens, Johan, Harrison, James, Janowski, Tadeusz, Jüttner, Andreas, Portelli, Antonin
In order to reach (sub-)per cent level precision in lattice calculations of the hadronic vacuum polarisation, isospin breaking corrections must be included. This requires introducing QED on the lattice, and the associated finite-size effects are pote
Externí odkaz:
http://arxiv.org/abs/1910.03250
We discuss an alternate scheme, or a 'line of constant physics', which can be used when computing isospin breaking corrections to hadronic quantities. We show that within a certain class of schemes one can separate the electromagnetic corrections fro
Externí odkaz:
http://arxiv.org/abs/1810.11647
We present preliminary results on the lattice simulation of an SU(2) gauge theory with two fermion flavors and one strongly interacting scalar field, all in the fundamental representation of SU(2). The motivation for this study comes from the recent
Externí odkaz:
http://arxiv.org/abs/1710.10831
We present a non perturbative study of SU(2) gauge theory with two fundamental Dirac flavours. This theory provides a minimal template which is ideal for a wide class of Standard Model extensions featuring novel strong dynamics, such as a minimal rea
Externí odkaz:
http://arxiv.org/abs/1710.07218
We compute the leading QED corrections to the hadronic vacuum polarization (HVP) of the photon, relevant for the determination of leptonic anomalous magnetic moments, $a_\ell$. We work in the electroquenched approximation and use dynamical QCD config
Externí odkaz:
http://arxiv.org/abs/1710.06024
Autor:
Hansen, Frederik F., Janowski, Tadeusz, Langaeble, Kasper, Mann, Robert B., Sannino, Francesco, Steele, Tom G., Wang, Zhi-Wei
Publikováno v:
Phys. Rev. D 97, 065014 (2018)
We determine the phase diagram of complete asymptotically free SU($N_c$) gauge theories featuring $N_s$ complex scalars and $N_f$ Dirac quarks transforming according to the fundamental representation of the gauge group. The analysis is performed at t
Externí odkaz:
http://arxiv.org/abs/1706.06402