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Théorie des Interactions Fondamentales
(28) Production(s) de l'année 2024

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Module doctoral expérimental AUTOMNE : Ateliers Pratiques d'éducation à la Transition Ecologique

Auteur(s): Coillot C., Doyennette L., Ganault Pierre, Guillet T., Rousseau E., Teissier Roland

(Affiches/Poster) ETES2024 Enseigner les Transitions Ecologiques et Sociales dans le Supérieur (Bordeaux, FR), 2024

Majorana neutrino dipole moments and masses at a muon collider

Auteur(s): Frigerio M., Vignaroli Natascia

Conference: 12th Neutrino Oscillation Workshop 2024 (Otrante, IT, 2024-09-02)
Actes de conférence: PoS, vol. NOW2024 p.042 (2025)
Texte intégral en Openaccess :

Ref HAL: hal-04891856_v1
Ref Arxiv: 2412.09473
Ref INSPIRE: 2858867
DOI: 10.22323/1.473.0042
Ref. & Cit.: NASA ADS
Exporter : BibTex | endNote
Résumé:

A future multi-TeV muon collider would provide an important probe for Majorana neutrinos. A muon collider with a collision energy of $\sim$ 30 TeV would be sensitive to $\nu_e-\nu_\mu$ transition dipole moments of the order of $\sim 10^{-12}\mu_B$ and would be thus competitive with the latest astrophysical observation and laboratory experiments. Contrary to the latter, the muon collider would have the unique advantage of a direct and clean identification of lepton number and flavour violation. This would establish the Majorana nature of the neutrino and would provide crucial complementary information on the neutrino properties in the event of a (near) future observation at low-energy experiments. Additionally, a muon collider would improve by orders of magnitude the direct bounds on the Majorana neutrino mass matrix entries $m_{e\mu}$ and $m_{\mu\mu}$ .

High-contrast high-efficiency two-stage VIPA based Brillouin imaging spectrometer using a single diffraction mask

Auteur(s): Desoutter Alban, Vialla R., Cuisinier Frédéric, Messat Yassine, Salehi Hamideh, Rousseau E., Ruffle B.

Conference: Brillouin Microscopy Conference 2024 (Trondheim, NO, 2024-09-11)

Two portals to GeV sterile neutrinos : dipole versus mixing

Auteur(s): Bertuzzo Enrico, Frigerio M.

(Document sans référence bibliographique)
Texte intégral en Openaccess :

Ref HAL: hal-04847829_v1
Ref Arxiv: 2412.10101
Ref INSPIRE: 2859433
Ref. & Cit.: NASA ADS
Exporter : BibTex | endNote
Résumé:

Massive sterile neutrinos, also known as heavy neutral leptons, can have a mixing with active neutrinos, $\theta$ , as well as a dipole coupling to the photon, $d$ . We study the interplay between these two portals, considering the production from meson decays of sterile neutrinos with mass $0.1$ GeV $\lesssim M_N \lesssim 10$ GeV, at beam-dump facilities such as NA62 and SHiP, and at the FASER2 experiment. These sterile neutrinos can be long-lived and decay into a photon in a distant detector, via the dipole operator. We find that all these experiments will be sensitive to values of $d$ which are presently unconstrained. The experimental reach varies strongly with the mass $M_N$ and the mixing $\theta$ , and one observes specific correlations with the flavour of active neutrinos. The SHiP experiment will mark a jump in sensitivity, as it will probe dipole couplings as small as $d\sim 10^{-8}$ GeV $^{-1}$ , thus testing new physics well above the electroweak scale.

Interest of Brillouin microscopy based on VIPA for mechanical mapping of biological samples

Auteur(s): Desoutter Alban, Vialla R., Cuisinier Frédéric, Messat Y, Salehi Hamideh, Rousseau E., Ruffle B.

(Affiches/Poster) N4M (Camogli (Genova), IT), 2024-03-03

Interest of diffractive mask in a VIPA-based Brillouin spectrometer for biological sample

Auteur(s): Desoutter Alban, Vialla R., Cuisinier Frédéric, Messat Yassine, Salehi Hamideh, Rousseau E., Ruffle B.

Conference: Optical Elastography and Tissue Biomechanics XI (San Francisco, FR, 2024-01-27)

Computing on the verge of chaos: classical and quantum reservoirs

Auteur(s): Felbacq D., Rousseau E., Kling Emmanuel

Conference: Active Photonic Platforms (APP) 2024 (San Diego, CA, US, 2024-08-18)
Actes de conférence: Proceedings of SPIE, vol. 13110 p.131100B ()

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Théorie des Interactions Fondamentales
(28) Production(s) de l'année 2024

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Théorie des Interactions Fondamentales(28) Production(s) de l'année 2024

Théorie des Interactions Fondamentales
(28) Production(s) de l'année 2024