Results 11 to 20 of about 18,495 (200)

CP violation [PDF]

open access: yesProceedings of International Europhysics Conference on High Energy Physics — PoS(hep2001), 2001
Several pieces of direct and indirect evidence now suggest that the Kobayashi-Maskawa mechanism plays a distinguished role for CP violation at the electroweak scale. This talk provides a general overview of CP violation in its various contexts, emphasizing CP violation in flavour-violating interactions, such as due to the Kobayashi-Maskawa mechanism. I
Martin Beneke, Beneke, Martin
openaire   +4 more sources

CP Violation [PDF]

open access: yes, 1999
Abstract CP violation is an intriguing and elusive subject, and current knowledge of it remains limited, on both the experimental and theoretical levels. Researchers lack a fundamental understanding of its origin, and this is all the more important because CP violation is related to the generation problem and mass problem, two of the ...
Branco, Gustavo   +2 more
core   +7 more sources

CP VIOLATION [PDF]

open access: yesInternational Journal of Modern Physics A, 2007
In this contribution to the Festschrift in honor of Bruce McKellar and Girish Joshi, I discuss a model proposed recently1 in which the CP violating phase in the CKM matrix is identical to the phase in the Higgs potential resulting from spontaneous CP violation.
Höcker, A
core   +4 more sources

Generalised CP and A4 family symmetry [PDF]

open access: yes, 2013
We perform a comprehensive study of family symmetry models based on A4 combined with the generalised CP symmetry H CP. We investigate the lepton mixing parameters which can be obtained from the original symmetry A4 ?
Stuart, Alexander J.   +2 more
core   +1 more source

Spontaneous CP violation and the strong CP problem

open access: yesJournal of High Energy Physics, 2017
We derive sufficient conditions that guarantee a robust solution of the strong CP problem in theories with spontaneous CP violation, and introduce a class of models satisfying these requirements. In the simplest scenarios the dominant contribution to the
Luca Vecchi
doaj   +1 more source

CP violation [PDF]

open access: yesNuclear Physics B - Proceedings Supplements, 1995
We review the present status of the Standard Model of CP violation, which is based on a complex phase in the Cabibbo-Kobayashi- Maskawa (CKM) matrix. So far CP violation has been observed only in $K^0-\Kbar$ mixing, consistent with a sizable phase. The implications of future CP nonconserving measurements in $K$ and $B$ decays are discussed within the ...
openaire   +2 more sources

Search for CP violation in the decay D+→π−π+π+ [PDF]

open access: yes, 2013
A search for CP violation in the phase space of the decay D+→π−π+π+ is reported using pp collision data, corresponding to an integrated luminosity of 1.0 fb−1, collected by the LHCb experiment at a centre-of-mass energy of 7 TeV.
Dossett, D.   +14 more
core   +1 more source

CP violation from string theory

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   +1 more source

CP violation [PDF]

open access: yesAIP Conference Proceedings, 1981
13 pages, to be published in Lecture Notes of TASI-2000, edited by Jonathan L.
openaire   +2 more sources

Model-independent search for CP violation in D0→K−K+π−π+ and D0→π−π+π+π− decays [PDF]

open access: yes, 2013
A search for CP violation in the phase-space structures of D0 and View the MathML source decays to the final states K−K+π−π+ and π−π+π+π− is presented.
HASH(0x55a67fa10458)   +13 more
core   +1 more source

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