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High Energy Physics - Phenomenology

arXiv:hep-ph/9807430 (hep-ph)
[Submitted on 20 Jul 1998 (v1), last revised 29 Jun 1999 (this version, v2)]

Title:The CP-Conserving Direction

Authors:M.C. Banuls, J. Bernabeu
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Abstract: A symmetry transformation is well defined in the case of an invariant theory, being the corresponding operator undetermined otherwise. However, we show that, even with CP violation, it is possible to determine the CP transformation by separating the Lagrangian of the Standard Model in a CP-conserving and a CP-violating part, in a unique way, making use of the empirically known quark mixing hierarchy. To order \lambda^3 for the Bd-system, the CP-conserving direction matches one of the sides of the (bd) unitarity triangle. We use this determination to calculate the rephasing invariant parameter \epsilon, which measures CP-mixing in the B0-B0bar system.
Comments: 12 pages, no figure. Version to appear in JHEP
Subjects: High Energy Physics - Phenomenology (hep-ph)
Report number: FTUV 98/37
Cite as: arXiv:hep-ph/9807430
  (or arXiv:hep-ph/9807430v2 for this version)
  https://doi.org/10.48550/arXiv.hep-ph/9807430
Journal reference: JHEP 9906 (1999) 032
Related DOI: https://doi.org/10.1088/1126-6708/1999/06/032

Submission history

From: Mari-Carmen Banuls [view email]
[v1] Mon, 20 Jul 1998 21:43:57 UTC (9 KB)
[v2] Tue, 29 Jun 1999 17:01:21 UTC (12 KB)
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