Updated search for B c + $$ {B}_c^{+} $$ decays to two charm mesons
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13130_2021_Article_17388.pdf
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Author(s)
Aaij, R.
Abdelmotteleb, A. S. W.
Abellán Beteta, C.
Ackernley, T.
Adeva, B.
Adinolfi, M.
Afsharnia, H.
Agapopoulou, C.
Aidala, C. A.
Aiola, S.
Date Issued
December 17, 2021
Publisher
Springer Berlin Heidelberg
Citation
Journal of High Energy Physics. 2021 Dec 17;2021(12):117
Version
Final published version
Abstract
Abstract
A data set corresponding to an integrated luminosity of 9 fb−1 of proton-proton collisions collected by the LHCb experiment has been analysed to search for
B
c
+
→
D
s
∗
+
—
D
∗
0
$$ {B}_c^{+}\to {D}_{(s)}^{\left(\ast \right)+}{\genfrac{}{}{0pt}{}{\left(\hbox{---} \right)}{D}}^{\left(\ast \right)0} $$
decays. The decays are fully or partially reconstructed, where one or two missing neutral pions or photons from the decay of an excited charm meson are allowed. Upper limits for the branching fractions, normalised to B+ decays to final states with similar topologies, are obtained for sixteen
B
c
+
$$ {B}_c^{+} $$
decay modes. For the decay
B
c
+
→
D
s
+
D
¯
0
$$ {B}_c^{+}\to {D}_s^{+}{\overline{D}}^0 $$
, an excess with a significance of 3.4 standard deviations is found.
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/JHEP12(2021)117
