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university of Provence - Aix-Marseille I |  |
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university of Provence - Aix-Marseille I | |
| HAL: hal-00439233, version 1 |
| arXiv: 0912.0899 |
| DOI: 10.1103/PhysRevD.81.054032 |
| Detailed view |  Export this paper |
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| Physical Review D 81 (2010) 054032 |
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| Extracting CP violation and strong phase in D decays by using quantum correlations in psi(3770)-> D0\bar{D}0 -> (V_1V_2)(V_3V_4) and psi(3770)->D0\bar{D}0 -> (V_1V_2)(K pi) |
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| J. Charles 1S. Descotes-Genon 2 |
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| For the FCPPL collaboration(s) |
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| (2010-03-30) |
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| The charm quark offers interesting opportunities to cross-check the mechanism of CP violation precisely tested in the strange and beauty sectors. In this paper, we exploit the angular and quantum correlations in the D\bar{D} pairs produced through the decay of the psi(3770) resonance in a charm factory to investigate CP-violation in two different ways. We build CP-violating observables in psi(3770) -> D\bar{D} -> (V_1V_2)(V_3 V_4) to isolate specific New Physics effects in the charm sector. We also consider the case of psi(3770) -> D\bar{D} -> (V_1V_2)(K\pi) decays, which provide a new way to measure the strong phase difference delta between Cabibbo-favored and doubly-Cabibbo suppressed D decays required in the determination of the CKM angle gamma. Neglecting the systematics, we give a first rough estimate of the sensitivities of these measurements at BES-III with an integrated luminosity of 20 fb^-1 at psi(3770) peak and at a future Super tau-charm factory with a luminosity of 10^35 cm^-2.s^-1. |
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| 1: | Centre de Physique Théorique (CPT) |
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CNRS : FR2291 – Université de Provence - Aix-Marseille I – Université de la Méditerranée - Aix-Marseille II – Université Sud Toulon Var |
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| 2: | Laboratoire de Physique Théorique d'Orsay (LPT) |
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CNRS : UMR8627 – Université Paris XI - Paris Sud |
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| Subject | : | Physics/High Energy Physics - Phenomenology |
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| Fulltext link: |
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| http://fr.arXiv.org/abs/0912.0899 |
| hal-00439233, version 1 | |
| http://hal.archives-ouvertes.fr/hal-00439233 | |
| oai:hal.archives-ouvertes.fr:hal-00439233 | |
| From: Jérôme Charles | |
| Submitted on: Monday, 7 December 2009 07:27:46 | |
| Updated on: Wednesday, 31 March 2010 15:56:00 | |
