How large can the SM contribution to CP violation in mixing be?

How large can the SM contribution to CP violation in mixing be?

We reconsider the leading HQE contributions to the absorptive part of the mixing amplitude of neutral D mesons by taking also α s corrections and subleading 1/ m c corrections into account. We show that these contributions to Γ 12 do not vanish in the exact SU(3) F limit and they also can have a lar...

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Veröffentlicht in:The journal of high energy physics 2010-03, Vol.2010 (3), Article 9
Hauptverfasser: Bobrowski, M., Lenz, A., Riedl, J., Rohrwild, J.
Format: Artikel
Sprache:eng
Schlagworte:
Absorptivity
Classical and Quantum Gravitation
CP violation
Elementary Particles
High energy physics
Mesons
Physics
Physics and Astronomy
Quantum Field Theories
Quantum Field Theory
Quantum Physics
Relativity Theory
String Theory
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Zusammenfassung:We reconsider the leading HQE contributions to the absorptive part of the mixing amplitude of neutral D mesons by taking also α s corrections and subleading 1/ m c corrections into account. We show that these contributions to Γ 12 do not vanish in the exact SU(3) F limit and they also can have a large phase. Moreover, we give an example of a new physics model that can enhance these leading HQE terms to Γ 12 , which are orders of magnitude lower than the current experimental expectation, by one to two orders of magnitude.
ISSN:1029-8479
1029-8479
DOI:10.1007/JHEP03(2010)009