Szczegóły publikacji
Opis bibliograficzny
First observation of $D^{0} - \bar{D}^{0}$ oscillations in $D^{0} \to K^{+}\pi^{-}\pi^{+}\pi^{-}$ decays and measurement of the associated coherence parameters / R. Aaij, [et al.], M. FIRLEJ, [et al.], T. FIUTOWSKI, [et al.], M. IDZIK, [et al.], W. KUCEWICZ, [et al.], P. MORAWSKI, [et al.], J. MOROŃ, [et al.], A. OBŁĄKOWSKA-MUCHA, [et al.], K. ŚWIENTEK, [et al.], T. SZUMLAK, [et al.] // Physical Review Letters ; ISSN 0031-9007. — 2016 — vol. 116 iss. 24 art. no. 241801, s. 241801-1–241801-10. — Bibliogr. s. 241801-5–241801-6. — Publikacja dostępna online od: 2016-06-17. — W. Kucewicz - pierwsza afiliacja: Henryk Niewodniczanski Institute of Nuclear Physics Polish Academy of Sciences, Kraków
Autorzy (300)
Dane bibliometryczne
| ID BaDAP | 99497 |
|---|---|
| Data dodania do BaDAP | 2016-08-26 |
| Tekst źródłowy | URL |
| DOI | 10.1103/PhysRevLett.116.241801 |
| Rok publikacji | 2016 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Czasopismo/seria | Physical Review Letters |
Abstract
Charm meson oscillations are observed in a time-dependent analysis of the ratio of D-0 -> K+pi(-)pi(+)pi(-) to D-0 -> K-pi(+)pi(-)pi(+) decay rates, using data corresponding to an integrated luminosity of 3.0 fb(-1) recorded by the LHCb experiment. The measurements presented are sensitive to the phase-space averaged ratio of doubly Cabibbo-suppressed to Cabibbo-favored amplitudes r(D)(K3 pi) and the product of the coherence factor R-D(K3 pi) and a charm mixing parameter y'(K3 pi). The constraints measured are r(D)(K3 pi) = (5.67 +/- 0.12) x 10(-2), which is the most precise determination to date, and R-D(K3 pi) y'(K3 pi) = (0.3 +/- 1.8) x 10(-3), which provides useful input for determinations of the CP-violating phase gamma in B-+/- -> DK +/-, D -> K–/+pi(+/-)pi(-/+)pi(+/-) decays. The analysis also gives the most precise measurement of the D-0 -> K+pi(-)pi(+)pi(-) branching fraction, and the first observation of D-0-(D) over bar (0) oscillations in this decay mode, with a significance of 8.2 standard deviations.
