We perform the first measurement on the D0 − D ̄ 0 mixing parameters using a time-dependent amplitude analysis of the decay D0 → πþπ−π0. The data were recorded with the BABAR detector at center-of-mass energies at and near the Υð4SÞ resonance, and correspond to an integrated luminosity of approximately 468.1 fb−1. The neutral D meson candidates are selected from D0ð2010Þþ → D0πþs decays where the flavor at the production is identified by the charge of the low-momentum pion, πþs . The measured mixing parameters are x 1⁄4 ð1.5 ` 1.2 ` 0.6Þ% and y 1⁄4 ð0.2 ` 0.9 ` 0.5Þ%, where the quoted uncertainties are statistical and systematic, respectively.

Measurement of the neutral D meson mixing parameters in a time-dependent amplitude analysis of the D0 →π+π-π0 decay

BIANCHI, Fabrizio;DE MORI, FRANCESCA;GAMBA, Diego;
2016-01-01

Abstract

We perform the first measurement on the D0 − D ̄ 0 mixing parameters using a time-dependent amplitude analysis of the decay D0 → πþπ−π0. The data were recorded with the BABAR detector at center-of-mass energies at and near the Υð4SÞ resonance, and correspond to an integrated luminosity of approximately 468.1 fb−1. The neutral D meson candidates are selected from D0ð2010Þþ → D0πþs decays where the flavor at the production is identified by the charge of the low-momentum pion, πþs . The measured mixing parameters are x 1⁄4 ð1.5 ` 1.2 ` 0.6Þ% and y 1⁄4 ð0.2 ` 0.9 ` 0.5Þ%, where the quoted uncertainties are statistical and systematic, respectively.
2016
93
11
112014-1
112014-10
http://harvest.aps.org/bagit/articles/10.1103/PhysRevD.93.112014/apsxml
Nuclear and High Energy Physics
Lees, J.P.; Poireau, V.; Tisserand, V.; Grauges, E.; Palano, A.; Eigen, G.; Brown, D.N.; Kolomensky, Yu. G.; Koch, H.; Schroeder, T.; Hearty, C.; Matt...espandi
File in questo prodotto:
File Dimensione Formato  
PhysRevD.93.112014.pdf

Accesso aperto

Tipo di file: PDF EDITORIALE
Dimensione 982.96 kB
Formato Adobe PDF
982.96 kB Adobe PDF Visualizza/Apri

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2318/1637442
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 16
  • ???jsp.display-item.citation.isi??? 10
social impact