TY  - JOUR
AU  - LHCb Collaboration (Aaij, R. et al
AU  - Jaimes Elles, S. J.
AU  - Jashal, B. K.
AU  - Martinez-Vidal, F.
AU  - Oyanguren, A.
AU  - Rebollo De Miguel, M.
AU  - Remon Alepuz, C.
AU  - Ruiz Vidal, J.
AU  - Sanderswood, I.
PY  - 2023
DA  - 2023//
TI  - Search for the rare decays W+ → Ds+γ and Z → D0 γ at LHCb
T2  - Chin. Phys. C
JO  - Chinese Physics C
SP  - 093002
EP  - 13pp
VL  - 47
IS  - 9
PB  - IOP Publishing Ltd
KW  - W/Z boson
KW  - rare decay
KW  - upper limit of branching fraction
AB  - 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.
SN  - 1674-1137
UR  - https://arxiv.org/abs/2212.07120
UR  - https://doi.org/10.1088/1674-1137/aceae9
DO  - 10.1088/1674-1137/aceae9
LA  - English
N1  - WOS:001062397200001
ID  - LHCbCollaborationAaij_etal2023
ER  -