Amplitude analysis of B s 0 → K S 0 K±π∓ decays
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Author(s)
Aaij, R.
Abellán Beteta, C.
Adeva, B.
Adinolfi, M.
Aidala, C. A
Ajaltouni, Z.
Akar, S.
Albicocco, P.
Albrecht, J.
Alessio, F.
Date Issued
June 21, 2019
Publisher
Springer Berlin Heidelberg
Citation
Journal of High Energy Physics. 2019 Jun 21;2019(6):114
Version
Final published version
Abstract
Abstract
The first untagged decay-time-integrated amplitude analysis of B
s
0
→ K
S
0
K±π∓ decays is performed using a sample corresponding to 3.0 fb−1 of pp collision data recorded with the LHCb detector during 2011 and 2012. The data are described with an amplitude model that contains contributions from the intermediate resonances K*(892)0,+, K
2
*
(1430)0,+ and K
0
*
(1430)0,+, and their charge conjugates. Measurements of the branching fractions of the decay modes B
s
0
→ K*(892)±K∓ and
B
s
0
→
K
*
—
892
0
K
0
—
$$ {B}_s^0\to \overset{\left(\hbox{---} \right)}{K^{*}}{(892)}^0\overset{\left(\hbox{---} \right)}{K^0} $$
are in agreement with, and more precise than, previous results. The decays B
s
0
→ K
0
*
(1430)±K∓ and
B
s
0
→
K
0
*
—
1430
0
K
0
—
$$ {B}_s^0\to \overset{\left(\hbox{---} \right)}{K_0^{*}}{(1430)}^0\overset{\left(\hbox{---} \right)}{K^0} $$
are observed for the first time, each with significance over 10 standard deviations.
MIT Department
Massachusetts Institute of Technology. Department of Physics
Terms of Use
Creative Commons Attribution
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DOI of Published Version
https://doi.org/10.1007/JHEP06(2019)114
