Zobrazeno 1 - 10
of 56
pro vyhledávání: '"Riembau, Marc"'
Autor:
Cohen, Timothy, Riembau, Marc
Matrix elements of Wilson-line dressed operators play a central role in the factorization of soft and collinear modes in gauge theories. When expressed using spinor helicity variables, these so-called form factors admit a classification starting from
Externí odkaz:
http://arxiv.org/abs/2406.03540
Universal theories are a broad class of well-motivated microscopic dynamics of the electroweak sector that go beyond the Standard Model description. The long distance physics is described by electroweak parameters which correspond to local operators
Externí odkaz:
http://arxiv.org/abs/2312.03834
Autor:
Riembau, Marc
We study the impact of full unitarity on the moment structure of forward scattering amplitudes. We introduce the semiarcs, calculable quantities in the EFT dispersively related to both real and imaginary parts of the UV amplitude for a fixed number o
Externí odkaz:
http://arxiv.org/abs/2212.14056
Autor:
Ricci, Lorenzo, Riembau, Marc
Energy correlators are field-theoretically clean and phenomenologically valuable probes of QCD dynamics. We explore the possibility of using the information encoded in the energy correlators of a hadronically decaying electroweak vector boson in orde
Externí odkaz:
http://arxiv.org/abs/2207.03511
We show how calculable IR loop effects impact positivity bounds in Effective Field Theories with causal and unitary UV completions. We identify infrared singularities which appear in dispersion relations at $|t|\lesssim m^2$. In the massless limit, t
Externí odkaz:
http://arxiv.org/abs/2112.12561
Publikováno v:
Phys. Rev. D 104, 036006 (2021)
We find the complete set of conditions satisfied by the forward $2\to2$ scattering amplitude in unitarity and causal theories. These are based on an infinite set of energy dependent quantities -- the arcs -- which are dispersively expressed as moment
Externí odkaz:
http://arxiv.org/abs/2011.00037
We use the on-shell S-matrix and form factors to compute anomalous dimensions of higher dimension operators in the Standard Model Effective Field Theory. We find that in many instances, these computations are made simple by using the on-shell method.
Externí odkaz:
http://arxiv.org/abs/2005.06983
Publikováno v:
Phys. Rev. Lett. 123, 181801 (2019)
The measurement of Higgs couplings constitute an important part of present Standard Model precision tests at colliders. In this article, we show that modifications of Higgs couplings induce energy-growing effects in specific amplitudes involving long
Externí odkaz:
http://arxiv.org/abs/1812.09299
The ACME collaboration has recently reported a new bound on the electric dipole moment (EDM) of the electron, $|d_e|< 1.1 \times 10^{-29}\, {\rm e\cdot cm}$ at 90$\%$ confidence level, reaching an unprecedented accuracy level. This can translate into
Externí odkaz:
http://arxiv.org/abs/1810.09413
We use the current CMS and ATLAS data for the leptonic $pp \to WW, WZ$ channels to show that diboson production is, for a broad class of flavour models, already competitive with LEP-1 measurements for setting bounds on the dimension six operators par
Externí odkaz:
http://arxiv.org/abs/1810.05149