A Light Higgs at the LHC and the B-Anomalies

Understand

After the Higgs discovery, the LHC has been looking for new resonances, decaying into pairs of Standard Model (SM) particles.

• Recently, the CMS experiment observed an excess in the di-photon channel, with a di-photon invariant mass of about 96~GeV.
• This mass range is similar to the one of an excess observed in the search for the associated production of Higgs bosons with the $Z$ neutral gauge boson at LEP, with the Higgs bosons decaying to bottom quark pairs.
• On the other hand, the LHCb experiment observed a discrepancy with respect to the SM expectations of the ratio of the decay of $B$-mesons to $K$-mesons and a pair of leptons, $R_{K^{(*)}} = BR(B \to K^{(*)} \mu^+\mu^-)/BR(B\to K^{(*)} e^+e^-)$.