Luka Šantelj (Author), Marko Bračko (Author), Boštjan Golob (Author), Samo Korpar (Author), Peter Križan (Author), Tara Nanut (Author), Rok Pestotnik (Author), Marko Petrič (Author), Eva Ribežl (Author), Marko Starič (Author), Anže Zupanc (Author)

Abstract

We present a measurement of the time-dependent CP violation parameters in B0 → η′K0 decays. The measurement is based on the full data sample containing 772 × 10^6 BB pairs collected at the Υ(4S) resonance using the Belle detector at the KEKB asymmetric-energy e+e− collider. The measured values of the mixing-induced and direct CP violation parameters are: sin⁡ 2ϕ1eff=+0.68±0.07±0.03, Aη′K0=+0.03±0.05±0.04, where the first uncertainty is statistical and the second is systematic. The values obtained are the most accurate to date. Furthermore, these results are consistent with our previous measurements and with the world-average value of sin 2ϕ1 measured in B0 → J/ψK0 decays.

Keywords

CP violation;CKM angle beta;e+-e- Experiments;B physics;

Data

Language: English
Year of publishing:
Typology: 1.01 - Original Scientific Article
Organization: UM FKKT - Faculty of Chemistry and Chemical Engineering
UDC: 539.1
COBISS: 28166695 Link will open in a new window
ISSN: 1029-8479
Views: 898
Downloads: 320
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Other data

Secondary language: Slovenian
Secondary keywords: kršitev simetrije CP;CKM beta;e+-e- eksperimenti;B fizika;
URN: URN:SI:UM:
Type (COBISS): Scientific work
Pages: str. 165-1-165-20
Volume: ǂVol. ǂ2014
Chronology: 2014
DOI: 10.1007/JHEP10(2014)165
ID: 10844761