Results 11 to 20 of about 691,412 (265)

Super-soft CP violation [PDF]

open access: yesJournal of High Energy Physics, 2021
Solutions of the Strong CP Problem based on the spontaneous breaking of CP must feature a non-generic structure and simultaneously explain a coincidence between a priori unrelated CP-even and CP-odd mass scales.
Alessandro Valenti, Luca Vecchi
doaj   +2 more sources

Leptogenesis from low energy CP violation [PDF]

open access: yesJournal of High Energy Physics, 2019
We revisit the possibility of producing the observed baryon asymmetry of the Universe via thermal leptogenesis, where CP violation comes exclusively from the low-energy phases of the neutrino mixing matrix.
K. Moffat   +3 more
doaj   +2 more sources

CP violation from string theory [PDF]

open access: yesPhysics Letters B, 2018
We identify a natural way to embed CP symmetry and its violation in string theory. The CP symmetry of the low energy effective theory is broken by the presence of heavy string modes.
Hans Peter Nilles   +3 more
doaj   +2 more sources

CP violation in charm [PDF]

open access: yesEPJ Web of Conferences, 2022
The existence of CP violation in the decays of strange and beauty mesons is very well established experimentally. On the contrary, CP violation in the decays of charmed particles has been elusive for a long time and has been observed for the first time ...

doaj   +1 more source

Beyond Jarlskog: 699 invariants for CP violation in SMEFT [PDF]

open access: yesJournal of High Energy Physics, 2021
As SMEFT is a framework of growing importance to analyze high-energy data, understanding its parameter space is crucial. The latter is commonly split into CP-even and CP-odd parts, but this classification is obscured by the fact that CP violation is ...
Q. Bonnefoy   +3 more
semanticscholar   +1 more source

Spontaneous CP violation by modulus τ in A4 model of lepton flavors [PDF]

open access: yesJournal of High Energy Physics, 2020
We discuss the modular A4 invariant model of leptons combining with the generalized CP symmetry. In our model, both CP and modular symmetries are broken spontaneously by the vacuum expectation value of the modulus τ.
H. Okada, M. Tanimoto
semanticscholar   +1 more source

Opportunistic CP violation

open access: yesJournal of High Energy Physics, 2023
In the electroweak sector of the Standard Model, CP violation arises through a very particular interplay between the three quark generations, as described by the Cabibbo-Kobayashi-Maskawa (CKM) mechanism and the single Jarlskog invariant J 4.
Quentin Bonnefoy   +3 more
doaj   +1 more source

Mixing and CP Violation in the Charm System [PDF]

open access: yes, 2020
In recent years charm physics has undergone a renaissance, one which has been catalysed by an unexpected and impressive set of experimental results from the $B$-factories, the Tevatron and LHCb.
A. Lenz, G. Wilkinson
semanticscholar   +1 more source

Two-Higgs-doublet model with soft CP violation confronting electric dipole moments and colliders [PDF]

open access: yes, 2020
We analyze CP-violating effects in both Electric Dipole Moment (EDM) measurements and future analyses at the Large Hadron Collider (LHC) assuming a 2-Higgs-Doublet Model (2HDM) with "soft" CP-violation.
K. Cheung   +3 more
semanticscholar   +1 more source

Challenge for spontaneous CP violation in Type IIB orientifolds with fluxes [PDF]

open access: yes, 2020
We systematically investigate the possibilities of realizing the spontaneous $CP$ violation in Type IIB flux compactifications on toroidal orientifolds.
Tatsuo C. Kobayashi, Hajime Otsuka
semanticscholar   +1 more source

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