Szczegóły publikacji
Opis bibliograficzny
Studies of the resonance structure in $D^{0} \to K^{\mp}\pi^{\pm}\pi^{\pm}\pi^{\mp}$ decays / R. Aaij, [et al.], A. DENDEK, [et al.], M. FIRLEJ, [et al.], T. FIUTOWSKI, [et al.], M. IDZIK, [et al.], W. KUCEWICZ, [et al.], M. W. MAJEWSKI, [et al.], J. MOROŃ, [et al.], A. OBŁĄKOWSKA-MUCHA, [et al.], B. RACHWAŁ, [et al.], K. ŚWIENTEK, [et al.], T. SZUMLAK, [et al.] // The European Physical Journal. C, Particles and Fields ; ISSN 1434-6044. — 2018 — vol. 78 iss. 6 art. no. 443, s. 1–31. — Wymagania systemowe: Adobe Reader. — Bibliogr. s. 26–27, Abstr. — Publikacja dostępna online od: 2018-06-02. — W. Kucewicz - dod. afiliacja: Henryk Niewodniczanski Institute of Nuclear Physics, Polish Academy of Sciences, Kraków
Autorzy (796)
Dane bibliometryczne
ID BaDAP | 116274 |
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Data dodania do BaDAP | 2018-09-22 |
Tekst źródłowy | URL |
DOI | 10.1140/epjc/s10052-018-5758-4 |
Rok publikacji | 2018 |
Typ publikacji | artykuł w czasopiśmie |
Otwarty dostęp | |
Creative Commons | |
Czasopismo/seria | European Physical Journal, C |
Abstract
Amplitude models are constructed to describe the resonance structure of D0→K−π+π+π− and D0→K+π−π−π+ decays using pp collision data collected at centre-of-mass energies of 7 and 8 TeV with the LHCb experiment, corresponding to an integrated luminosity of 3.0 fb−1. The largest contributions to both decay amplitudes are found to come from axial resonances, with decay modes D0→a1(1260)+K− and D0→K1(1270/1400)+π− being prominent in D0→K−π+π+π− and D0→K+π−π−π+, respectively. Precise measurements of the lineshape parameters and couplings of the a1(1260)+, K1(1270)− and K(1460)− resonances are made, and a quasi model-independent study of the K(1460)− resonance is performed. The coherence factor of the decays is calculated from the amplitude models to be RK3π=0.459±0.010(stat)±0.012(syst)±0.020(model), which is consistent with direct measurements. These models will be useful in future measurements of the unitary-triangle angle γ and studies of charm mixing and CP violation.