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HHH Whitepaper
/ Abouabid, Hamza (Abdelmalek Essaadi U.) ; Arhrib, Abdesslam (Abdelmalek Essaadi U.) ; Arnold, Hannah (Stony Brook U.) ; Azevedo, Duarte (KIT, Karlsruhe, TP) ; Brigljevic, Vuko (Boskovic Inst., Zagreb) ; Chen, Maggie (Oxford U., Theor. Phys.) ; Diaz, Daniel (San Diego State U.) ; Duarte, Javier (San Diego State U.) ; du Pree, Tristan (NIKHEF, Amsterdam ; Twente U., Enschede) ; Falaki, Jaouad El (Ibn Zohr U., Agadir) et al.
We here report on the progress of the HHH Workshop, that took place in Dubrovnik in July 2023. After the discovery of a particle that complies with the properties of the Higgs boson of the Standard Model, all SM parameters are in principle determined. [...]
arXiv:2407.03015.-
2024-11-19 - 117 p.
- Published in : 10.1140/epjc/s10052-024-13376-3
Fulltext: document - PDF; 2407.03015 - PDF;
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CEPC Technical Design Report: Accelerator
/ CEPC Study Group Collaboration
The Circular Electron Positron Collider (CEPC) is a large scientific project initiated and hosted by China, fostered through extensive collaboration with international partners. The complex comprises four accelerators: a 30 GeV Linac, a 1.1 GeV Damping Ring, a Booster capable of achieving energies up to 180 GeV, and a Collider operating at varying energy modes (Z, W, H, and ttbar). [...]
arXiv:2312.14363; IHEP-CEPC-DR-2023-01; IHEP-AC-2023-01.-
2024-06-03 - 1106 p.
- Published in : Radiat. Detect. Technol. Methods 8 (2024) 1-1105
Fulltext: 2312.14363 - PDF; Publication - PDF;
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Gravitational echoes of lepton number symmetry breaking with light and ultralight Majorons
/ Addazi, Andrea (SCU, Chengdu ; Frascati) ; Marcianò, Antonino (Frascati ; Fudan U.) ; Morais, António P. (CERN ; U. Aveiro (main)) ; Pasechnik, Roman (Lund U.) ; Viana, João (Lisbon U., CFTC) ; Yang, Hao (Fudan U., Shanghai ; Shanghai Jiao Tong U.)
We formulate a version of the low-scale Majoron model equipped with an inverse seesaw mechanism featuring lepton-number preserving dimension-6 operators in the scalar potential. Contrary to its dimension-4 counterpart, we find that the model can simultaneously provide light and ultralight Majorons, neutrino masses and their mixing, while featuring strong first-order cosmological phase transitions associated to the spontaneous breaking of the lepton number and the electroweak symmetries in the early Universe. [...]
arXiv:2304.02399; CERN-TH-2023-054.-
2023-09-14 - 29 p.
Fulltext: 2304.02399 - PDF; document - PDF; erratum - PDF;
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