@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 O. Grzymkowska 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",
}