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CERN Document Server 118 record trovati  1 - 10successivofine  salta al record: La ricerca ha impiegato 1.35 secondi. 
1.
Higgs Factory options for CERN: A comparative study / Blondel, Alain (LPNHE, Paris) ; Grojean, Christophe (DESY) ; Janot, Patrick (CERN) ; Wilkinson, Guy (Oxford U.)
``All future $e^+e^-$ Higgs factories have similar reach for the precise measurement of the Higgs boson properties.'': this popular statement has often led to the impression that all $\rm e^+e^-$ options are scientifically equivalent when it comes to choosing the future post-LHC collider at CERN. [...]
arXiv:2412.13130. - 27.
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Comment on "Sustainability Strategy for the Cool Copper Collider", arXiv:2307.04084 / Grojean, Christophe (DESY ; Humboldt U., Berlin) ; Janot, Patrick (CERN)
The paper entitled "Sustainability Strategy for the Cool Copper Collider" by M. [...]
arXiv:2412.12236. - 8.
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MuCol Milestone Report No. 5: Preliminary Parameters / MuCoL Collaboration
This document is comprised of a collection of updated preliminary parameters for the key parts of the muon collider. [...]
arXiv:2411.02966. -
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Panel 1 / Domcke, Valerie (speaker) (CERN) ; Armas, Jácome (speaker) ; Gross, David (speaker) ; Grojean, Christophe (speaker) (DESY (Hamburg), Humboldt University (Berlin) and CERN) ; Strominger, Andrew (speaker)
2024 - 3312. CERN70 Public Events at CERN; The case of the (still) mysterious Universe External links: Talk details; Event details In : The case of the (still) mysterious Universe
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The flavor invariants of the $\nu$SM / Grojean, Christophe (DESY ; Humboldt U., Berlin ; CERN) ; Kley, Jonathan (DESY ; Humboldt U., Berlin) ; Leflot, Damien (Annecy, LAPTH) ; Yao, Chang-Yuan (DESY ; Nankai U.)
Sixty years after the experimental discovery of CP violation in the quark sector, the existence of a similar CP violation in the lepton sector is still to be established. Actually, the structure of such a violation depends crucially on the origin of the neutrino masses. [...]
arXiv:2406.00094; CERN-TH-2024-076; DESY-24-021; HU-EP-24/14.- 2024-12-10 - 60 p. - Published in : JHEP 2412 (2024) 069 Fulltext: 2406.00094 - PDF; document - PDF;
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A log story short: running contributions to radiative Higgs decays in the SMEFT / Grojean, Christophe (DESY ; Humboldt U., Berlin ; CERN) ; Guedes, Guilherme (DESY) ; Roosmale Nepveu, Jasper (DESY ; Humboldt U., Berlin) ; Salla, Gabriel M. (DESY ; Sao Paulo U.)
We investigate the renormalization of the radiative decays of the Higgs to two gauge bosons in the Standard Model Effective Field Theory at mass dimension eight. Given that these are loop-level processes, their one-loop renormalization can be phenomenologically important when triggered by operators generated through the tree-level exchange of heavy particles (assuming a weakly coupled UV model). [...]
arXiv:2405.20371; CERN-TH-2024-075; DESY-24-077; HU-EP-24/15-RTG.- 2024-12-10 - 50 p. - Published in : JHEP 2412 (2024) 065 Fulltext: 2405.20371 - PDF; document - PDF;
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Small instanton-induced flavor invariants and the axion potential / Bedi, Ravneet (Minnesota U.) ; Gherghetta, Tony (Minnesota U.) ; Grojean, Christophe (DESY ; Humboldt U., Berlin ; CERN) ; Guedes, Guilherme (DESY) ; Kley, Jonathan (DESY ; Humboldt U., Berlin) ; Vuong, Pham Ngoc Hoa (DESY)
Small instantons which increase the axion mass due to an appropriate modification of QCD at a UV scale $\Lambda_{\rm SI}$, can also enhance the effect of CP-violating operators to shift the axion potential minimum by an amount, $\theta_{\rm ind}$, proportional to the flavorful couplings in the SMEFT. Since physical observables must be flavor basis independent, we construct a basis of determinant-like flavor invariants that arise from instanton calculations containing the effects of dimension-six CP-odd operators at the scale $\require{cancel}\Lambda_{\cancel{\rm CP}}$. [...]
arXiv:2402.09361; CERN-TH-2024-022; DESY-24-019; HU-EP-24/05; UMN--TH--4313/24.- 2024-06-24 - 49 p. - Published in : JHEP 2406 (2024) 156 Fulltext: document - PDF; 2402.09361 - PDF;
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ALPs, the on-shell way / Bertuzzo, Enrico (Sao Paulo U. ; Modena U.) ; Grojean, Christophe (DESY ; Humboldt U., Berlin ; CERN) ; Salla, Gabriel M. (Sao Paulo U. ; DESY)
We study how the coupling between axion-like particles (ALPs) and matter can be obtained at the level of on-shell scattering amplitudes. We identify three conditions that allow us to compute amplitudes that correspond to shift-symmetric Lagrangians, at the level of operators with dimension 5 or higher, and we discuss how they relate and extend the Adler's zero condition. [...]
arXiv:2311.16253; CERN-TH-2023-202; DESY-23-090; HU-EP-23/21.- 2024-05-15 - 50 p. - Published in : JHEP 2405 (2024) 175 Fulltext: 2311.16253 - PDF; document - PDF;
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Gargamelle: un courant et le modèle devint standard / Grojean, Christophe (speaker) (DESY (Hamburg) and Humboldt University (Berlin))
2023 - 1739. GLOBE - Public Events; L'aventure de la première grande découverte au CERN External links: Talk details; Event details In : L'aventure de la première grande découverte au CERN
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Higgs and Beyond the Standard Model: from LHC to future colliders / Grojean, Christophe (speaker)
BSM is turning 50 this year: the SM was not yet established experimentally that attempts to overcome its limitations and to offer an even more unified view of the laws of Nature started. Today, outstanding problems in particle physics and cosmology still call for BSM physics. [...]
2023 - 4293. Theory Colloquia External link: Event details In : Higgs and Beyond the Standard Model: from LHC to future colliders
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CERN Document Server : 118 record trovati   1 - 10successivofine  salta al record:
Vedi anche: autori con nomi simili
162 GROJEAN, Christophe
19 Grojean, C
37 Grojean, C.
1 Grojean, Ch
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