Speaker
Alberto Lusiani
(Scuola Normale Superiore and INFN, sezione di Pisa)
Description
Many extensions of the Standard Model include the possibility of light new particles, such as axions candidates. These scenarios can be probed using the large data sets collected by $B$-factories, complementing measurements performed at the LHC. We report on a search for an Axion-like particle (ALP), $a$, produced in the Flavor-Changing Neutral-Current decay $B\to K a$, with $a\to \gamma\gamma$, which is expected to be competitive with the corresponding Standard-Model electroweak processes. This search, performed by using a dataset of about 470 million $B\bar{B}$ pairs collected by the $BABAR$ experiment at the PEP-II $e^+e^-$ collider, is sensitive to ALP masses in the range 0 - 4.78 GeV.
| In-person participation | No |
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Primary author
Alberto Lusiani
(Scuola Normale Superiore and INFN, sezione di Pisa)
