495 citations · 1.9k across the 34 of their papers we have counts for
34 papers
MaRTIn -- Manual for the "Massive Recursive Tensor Integration"
Joachim Brod, Lorenz Hüdepohl, Emmanuel Stamou +1
We present MaRTIn, an extendable all-in-one package for calculating amplitudes up to two loops in an expansion in external momenta or using the method of infrared rearrangement. Re…
Absence of SO(4) quantum criticality in Dirac semimetals at two-loop order
Max Uetrecht, Igor F. Herbut, Emmanuel Stamou +1
Evidence for relativistic quantum criticality of antiferromagnetism and superconductivity in two-dimensional Dirac fermion systems has been found in large-scale quantum Monte Carlo…
Asymptotic Safety Guaranteed at Four Loop
Daniel F. Litim, Nahzaan Riyaz, Emmanuel Stamou +1
We investigate a family of four-dimensional quantum field theories with weakly interacting ultraviolet fixed points up to four loop order in perturbation theory. Key new ingredient…
A Precise Electron EDM Constraint on CP-odd Heavy-Quark Yukawas
Joachim Brod, Zachary Polonsky, Emmanuel Stamou
CP-odd Higgs couplings to bottom and charm quarks arise in many extensions of the standard model and are of potential interest for electroweak baryogenesis. These couplings induce…
Leveraging on-shell interference to search for FCNCs of the top quark and the Z boson
Lucas Cremer, Johannes Erdmann, Roni Harnik +2
Flavour-changing-neutral currents (FCNCs) involving the top quark are highly suppressed within the Standard Model (SM). Hence, any signal in current or planned future collider expe…
Impact of indirect CP violation on Br
Joachim Brod, Emmanuel Stamou
The decay , with the final muon pair in an angular-momentum zero state, is a sensitive probe of short-distance physics. It has recently been shown how to…
Global Constraints on Yukawa Operators in the Standard Model Effective Theory
Joachim Brod, Jonathan M. Cornell, Dimitrios Skodras +1
CP-violating contributions to Higgs--fermion couplings are absent in the standard model of particle physics (SM), but are motivated by models of electroweak baryogenesis. Here, we…
New Physics Searches at Kaon and Hyperon Factories
Evgueni Goudzovski, Diego Redigolo, Kohsaku Tobioka +61
Rare meson decays are among the most sensitive probes of both heavy and light new physics. Among them, new physics searches using kaons benefit from their small total decay widths…
Updated Standard Model Prediction for and
Joachim Brod, Martin Gorbahn, Emmanuel Stamou
The rare decay modes and the parameter that measures CP violation in Kaon mixing are sensitive probes of physics beyond the standard model. In this article we…
Self-interacting neutrinos: solution to Hubble tension versus experimental constraints
Kun-Feng Lyu, Emmanuel Stamou, Lian-Tao Wang
Exotic self-interactions among the Standard-Model neutrinos have been proposed as a potential reason behind the tension in the expansion rate, H0, of the universe inferred from dif…
Standard-model prediction of with manifest CKM unitarity
Joachim Brod, Martin Gorbahn, Emmanuel Stamou
The parameter describes CP violation in the neutral kaon system and is one of the most sensitive probes of new physics. The large uncertainties related to the charm-quark con…
Probing flavoured Axions in the Tail of
Johannes Albrecht, Emmanuel Stamou, Robert Ziegler +1
We discuss how LHC di-muon data collected to study can be used to constrain light particles with flavour-violating couplings to -quarks. Focussing on the case of a…
Electric dipole moment constraints on CP-violating heavy-quark Yukawas at next-to-leading order
Joachim Brod, Emmanuel Stamou
Electric dipole moments are sensitive probes of new phases in the Higgs Yukawa couplings. We calculate the complete two-loop QCD anomalous dimension matrix for the mixing of CP-odd…
Weak mixing below the weak scale in dark-matter direct detection
Joachim Brod, Benjamin Grinstein, Emmanuel Stamou +1
If dark matter couples predominantly to the axial-vector currents with heavy quarks, the leading contribution to dark-matter scattering on nuclei is either due to one-loop weak cor…
Light Resonances and the Low- Bin of
Wolfgang Altmannshofer, Michael J. Baker, Stefania Gori +4
LHCb has reported hints of lepton-flavor universality violation in the rare decays , both in high- and low- bins. Although the high- hint may…
Scaling dimensions in QED from the -expansion
Lorenzo Di Pietro, Emmanuel Stamou
We study the fixed point that controls the IR dynamics of QED in . We derive the scaling dimensions of four-fermion and bilinear operators beyond leading order in -e…
Operator mixing in -expansion: scheme and evanescent (in)dependence
Lorenzo Di Pietro, Emmanuel Stamou
We consider theories with fermionic degrees of freedom that have a fixed point of Wilson-Fisher type in non-integer dimension . Due to the presence of evanescent operator…
Interpreting a 750 GeV Diphoton Resonance
Rick S. Gupta, Sebastian Jäger, Yevgeny Kats +2
We discuss the implications of the significant excesses in the diphoton final state observed by the LHC experiments ATLAS and CMS around a diphoton invariant mass of 750 GeV. The i…
Large BR(h->tau mu) in the MSSM?
Daniel Aloni, Yosef Nir, Emmanuel Stamou
We study how large the rate of the lepton-flavor violating Higgs decay h->tau mu can be in the (R-parity conserving) MSSM. We make no assumptions, such as universality or alignment…
Quantum Electrodynamics in d=3 from the epsilon-expansion
Lorenzo Di Pietro, Zohar Komargodski, Itamar Shamir +1
We study Quantum Electrodynamics in d=3 (QED_3) coupled to N_f flavors of fermions. The theory flows to an IR fixed point for N_f larger than some critical number N_f^c. For N_f<=…
Dark Matter and Gauged Flavor Symmetries
Fady Bishara, Admir Greljo, Jernej F. Kamenik +2
We investigate the phenomenology of flavored dark matter (DM). DM stability is guaranteed by an accidental symmetry, a subgroup of the standard model (SM) flavor g…
Prospects for measuring the Higgs coupling to light quarks
Gilad Perez, Yotam Soreq, Emmanuel Stamou +1
We discuss the prospects to probe the light-quark Yukawa couplings to the Higgs boson. The Higgs coupling to the charm quark can be probed both via inclusive and exclusive approach…
Heavy baryons as polarimeters at colliders
Mario Galanti, Andrea Giammanco, Yuval Grossman +3
In new-physics processes that produce b or c jets, a measurement of the initial b or c-quark polarization could provide crucial information about the structure of the new physics.…
Constraining the Charm Yukawa and Higgs-quark Coupling Universality
Gilad Perez, Yotam Soreq, Emmanuel Stamou +1
We introduce four different types of data-driven analyses with different level of robustness that constrain the size of the Higgs-charm Yukawa coupling: (i) recasting the vector-bo…