$D-\bar D$ mixing in the framework of the HQE revisited
| dc.creator | Bobrowski, M. | |
| dc.creator | Lenz, A. | |
| dc.creator | Riedl, J. | |
| dc.creator | Rohrwild, J. | |
| dc.date | 2009-04-25 | |
| dc.date.accessioned | 2026-07-07T13:08:49Z | |
| dc.date.available | 2026-07-07T13:08:49Z | |
| dc.description | 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 a factor in the upper double-digit range. | |
| dc.description | 4 pages, 3 figures | |
| dc.identifier | https://arxiv.org/abs/0904.3971 | |
| dc.identifier | http://arxiv.org/abs/0904.3971 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/228543 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | $D-\bar D$ mixing in the framework of the HQE revisited | |
| dc.type | text |