https://doi.org/10.1051/epjconf/202431400005
Exclusive c → uγ transitions of Bc meson
1 Istituto Nazionale di Fisica Nucleare, Sezione di Bari, Via Orabona 4, I-70126 Bari, Italy
2 Dipartimento Interateneo di Fisica “M. Merlin”, Università e Politecnico di Bari, via Orabona 4, 70126 Bari, Italy
* e-mail: nicola.losacco@ba.infn.it
Published online: 10 December 2024
We study the rare decays of the Bc meson induced by the flavour changing neutral current c → uγ transition. In the Standard Model they are strongly suppressed by the Glashow-Iliopoulos-Maiani mechanism, therefore they are sensitive to new physics. The difficulty is to get rid of long-distance contributions. We study such effects in radiative Bc transitions both to B* and to the axial-vector B′1 meson.
© The Authors, published by EDP Sciences, 2024
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