@article{db297ac6a1db4d4880fb0219fd20440e,
title = "Observation of the Decay Bs0 →k0 K 0",
abstract = "We measure the decay Bs0→K0K0 using data collected at the ?(5S) resonance with the Belle detector at the KEKB e+e- collider. The data sample used corresponds to an integrated luminosity of 121.4 fb-1. We measure a branching fraction B(Bs0→K0K0)=[19.6-5.1+5.8(stat)±1.0(syst)±2.0(NBs0Bs0)]×10-6 with a significance of 5.1 standard deviations. This measurement constitutes the first observation of this decay.",
author = "\{Belle Collaboration\} and B. Pal and Schwartz, \{A. J.\} and A. Abdesselam and I. Adachi and H. Aihara and Asner, \{D. M.\} and T. Aushev and R. Ayad and T. Aziz and V. Babu and I. Badhrees and S. Bahinipati and Bakich, \{A. M.\} and E. Barberio and P. Behera and V. Bhardwaj and B. Bhuyan and J. Biswal and A. Bobrov and A. Bozek and M. Bra{\v c}ko and Browder, \{T. E.\} and D. {\v C}ervenkov and V. Chekelian and A. Chen and Cheon, \{B. G.\} and R. Chistov and K. Cho and V. Chobanova and Y. Choi and D. Cinabro and J. Dalseno and N. Dash and Z. Dole{\v Z}al and Z. Dr{\'a}sal and A. Drutskoy and D. Dutta and S. Eidelman and H. Farhat and Fast, \{J. E.\} and Fulsom, \{B. G.\} and V. Gaur and A. Garmash and R. Gillard and Goh, \{Y. M.\} and P. Goldenzweig and D. Greenwald and Kang, \{K. H.\} and Kim, \{H. J.\} and Kim, \{M. J.\}",
note = "Publisher Copyright: {\textcopyright} 2016 American Physical Society.",
year = "2016",
month = apr,
day = "19",
doi = "10.1103/PhysRevLett.116.161801",
language = "English",
volume = "116",
journal = "Physical Review Letters",
issn = "0031-9007",
publisher = "American Physical Society",
number = "16",
}