Zobrazeno 1 - 10
of 90
pro vyhledávání: '"Hofer, Lars"'
Autor:
Capdevila, Bernat, Crivellin, Andreas, Descotes-Genon, Sébastien, Hofer, Lars, Matias, Joaquim
Publikováno v:
Phys. Rev. Lett. 120, 181802 (2018)
In recent years, intriguing hints for the violation of Lepton Flavour Universality (LFU) have been accumulated in semileptonic $B$ decays, both in the neutral-current transitions $b\to s\ell^+\ell^-$ (i.e., $R_K$ and $R_{K^*}$) and the charged-curren
Externí odkaz:
http://arxiv.org/abs/1712.01919
The production of a neutral and a charged vector boson with subsequent decays into three charged leptons and a neutrino is a very important process for precision tests of the Standard Model of elementary particles and in searches for anomalous triple
Externí odkaz:
http://arxiv.org/abs/1708.06938
Precision measurements of flavour observables provide powerful tests of many extensions of the Standard Model. This contribution covers a range of flavour measurements of $b\to s\ell^+\ell^-$ transitions, several of which are in tension with the Stan
Externí odkaz:
http://arxiv.org/abs/1703.10005
In the absence of direct evidence for New Physics at present LHC energies, the focus is set on the anomalies and discrepancies recently observed in rare $b \to s\ell\ell$ transitions which can be interpreted as indirect hints. Global fits have shown
Externí odkaz:
http://arxiv.org/abs/1701.08672
We present a state-of-the-art calculation of the next-to-leading-order electroweak corrections to ZZ production, including the leptonic decays of the Z bosons into $\mu^+\mu^-\mathrm{e}^+\mathrm{e}^-$ or $\mu^+\mu^-\mu^+\mu^-$ final states. We use co
Externí odkaz:
http://arxiv.org/abs/1611.05338
The present status of the LHC anomalies found in exclusive semileptonic $b\to s\ell^+\ell^-$ decays is discussed with special emphasis on the exclusive 4-body angular distribution $B \to K^*(\to K\pi)\ell^+\ell^-$. The treatment of hadronic uncertain
Externí odkaz:
http://arxiv.org/abs/1609.01355
Recent measurements of $b\to s\mu^+\mu^-$ processes at LHCb and BELLE have revealed tensions at the $2-3\,\sigma$ level between the Standard Model (SM) prediction and the experimental results in the channels $B\to K^*\mu^+\mu^-$ and $B_s\to\phi\mu^+\
Externí odkaz:
http://arxiv.org/abs/1608.07832
Recently, the LHC has found several anomalies in exclusive semileptonic b --> s l^+ l^- decays. In this proceeding, we summarize the most important results of our global analysis of the relevant decay modes. After a discussion of the hadronic uncerta
Externí odkaz:
http://arxiv.org/abs/1605.06059
Autor:
Biedermann, Benedikt, Billoni, Marina, Denner, Ansgar, Dittmaier, Stefan, Hofer, Lars, Jager, Barbara, Salfelder, Lukas
We present results of the first calculation of next-to-leading-order electroweak corrections to W-boson pair production at the LHC that fully takes into account leptonic W-boson decays and off-shell effects. Employing realistic event selections, we d
Externí odkaz:
http://arxiv.org/abs/1605.03419
Autor:
Actis, Stefano, Denner, Ansgar, Hofer, Lars, Lang, Jean-Nicolas, Scharf, Andreas, Uccirati, Sandro
We present the Fortran95 program Recola for the perturbative computation of next-to-leading-order transition amplitudes in the Standard Model of particle physics. The code provides numerical results in the 't Hooft-Feynman gauge. It uses the complex-
Externí odkaz:
http://arxiv.org/abs/1605.01090