Amplitude analysis of B s 0 → K S 0 K±π∓ decays
Abstract The first untagged decay-time-integrated amplitude analysis of B s 0 → K S 0 K±π∓ decays is performed using a sample corre...
| Main Authors: | , , , , , , , , , , , , , , |
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| Other Authors: | |
| Format: | Article |
| Language: | English |
| Published: |
Springer Berlin Heidelberg
2021
|
| Online Access: | https://hdl.handle.net/1721.1/131686 |
| Summary: | 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. |
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