%0 Journal Article
%T Search for the rare decays W+ → Ds+γ and Z → D0 γ at LHCb
%A LHCb Collaboration (Aaij, R. et al
%A Jaimes Elles, S. J.
%A Jashal, B. K.
%A Martinez-Vidal, F.
%A Oyanguren, A.
%A Rebollo De Miguel, M.
%A Remon Alepuz, C.
%A Ruiz Vidal, J.
%A Sanderswood, I.
%J Chinese Physics C
%D 2023
%V 47
%N 9
%I IOP Publishing Ltd
%@ 1674-1137
%G English
%F LHCbCollaborationAaij_etal2023
%O WOS:001062397200001
%O exported from refbase (https://references.ific.uv.es/refbase/show.php?record=5808), last updated on Wed, 10 Apr 2024 12:39:11 +0000
%X A search for the rare decays W+ -> D-s(+)gamma and Z -> D-0 gamma and is performed using proton-proton collision data collected by the LHCb experiment at a centre-of-mass energy of 13TeV, corresponding to an integrated luminosity of 2.0fb(-1). No significant signal is observed for either decay mode and upper limits on their branching fractions are set using W+ -> mu(+)nu and Z ->mu(+)mu(-)decays as normalization channels. The upper limits are and at 95% confidence level for W+ -> D-s(+)gamma and Z -> D-0 gamma the and decay modes, respectively. This is the first reported search for Z -> D-0 gamma the decay, while the upper limit on the Z -> D-0 gamma branching fraction improves upon the previous best limit.
%K W/Z boson
%K rare decay
%K upper limit of branching fraction
%R 10.1088/1674-1137/aceae9
%U https://arxiv.org/abs/2212.07120
%U https://doi.org/10.1088/1674-1137/aceae9
%P 093002-13pp