Zobrazeno 1 - 10
of 1 926
pro vyhledávání: '"Barducci A"'
Publikováno v:
JHEP 10 (2024) 016
Dipole interactions between dark sector states or between a Standard Model particle and a dark state can efficiently be searched for via high-intensity fixed-target facilities. We propose to look for the associated mono-$\gamma$ signature at the NA62
Externí odkaz:
http://arxiv.org/abs/2406.17599
We study the phenomenology of $d=6$ dipole portal operators connecting active and sterile neutrinos at a futuristic muon collider. These operators can be the dominant portal between the Standard Model and the New Physics sector in scenarios in which
Externí odkaz:
http://arxiv.org/abs/2404.09609
We study the phenomenological viability of chiral extensions of the Standard Model, with new chiral fermions acquiring their mass through interactions with a single Higgs. We examine constraints from electroweak precision tests, Higgs physics and dir
Externí odkaz:
http://arxiv.org/abs/2311.10130
Autor:
Daniele Barducci, Alessandro Dondarini
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 10, Pp 1-22 (2024)
Abstract We study the phenomenology of d = 6 dipole portal operators connecting active and sterile neutrinos at a futuristic muon collider. These operators can be the dominant portal between the Standard Model and the New Physics sector in scenarios
Externí odkaz:
https://doaj.org/article/e597d3c7ee054a9c9959e0b381a6e915
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 10, Pp 1-20 (2024)
Abstract Dipole interactions between dark sector states or between a Standard Model particle and a dark state can efficiently be searched for via high-intensity fixed-target facilities. We propose to look for the associated mono-γ signature at the N
Externí odkaz:
https://doaj.org/article/68124d7a294d44c6bf1b28fc57b81828
We consider the dipole portal to sterile neutrinos, also called heavy neutral leptons (HNLs). The dipole interaction with the photon leads to HNL production in meson decays, as well as triggers the HNL decay into an active neutrino and a photon. HNLs
Externí odkaz:
http://arxiv.org/abs/2308.16608
Autor:
Barducci, Daniele, Strumia, Alessandro
A muon collider could produce the heavier Standard Model particles with a boost, for example in resonant processes such as $\mu^-\mu^+\to h$ or $\mu^-\mu^+\to Z$. We propose machine configurations that produce the boost (asymmetric beam energies, til
Externí odkaz:
http://arxiv.org/abs/2306.12480
We study perturbative unitarity constraints on generic interactions between fermion and vector fields, which are allowed to have generic quantum numbers under a $\prod_i SU(N_i) \otimes U(1)$ group. We derive compact expressions for the bounds on the
Externí odkaz:
http://arxiv.org/abs/2306.11533
Autor:
Barducci, Daniele, Toni, Claudio
In view of the latest experimental results recently released by the ATOMKI collaboration, we critically re-examine the possible theoretical interpretation of the observed anomalies in terms of a new BSM boson $X$ with mass $\sim17\;$MeV. To this end
Externí odkaz:
http://arxiv.org/abs/2212.06453
We consider the minimal see-saw extension of the Standard Model with two right-handed singlet fermions $N_{1,2}$ with mass at the GeV scale, augmented by an effective dipole operator between the sterile states. We firstly review current bounds on thi
Externí odkaz:
http://arxiv.org/abs/2209.13469