Standard Model at the LHC 2026

Session

Flavour physics

7 Apr 2026, 16:30

B1 (Campus Luigi Einaudi, Torino, Italy)

Conveners

Flavour physics: Rare B decays

• Marcella Bona (Queen Mary, University of London)
• Mick Mulder (CERN)
• Nico Gubernari (University of Bonn)
• Dmytro Kovalskyi (MIT)

Flavour physics

• Marcella Bona (Queen Mary, University of London)
• Dmytro Kovalskyi (MIT)
• Mick Mulder (CERN)
• Nico Gubernari (University of Bonn)

62. CMS: Rare b-hadron decays

Federica Maria Simone (Istituto Nazionale di Fisica Nucleare)

07/04/2026, 16:30

63. Predictions for inclusive rare B meson decays

Enrico Lunghi (Indiana University), Enrico Lunghi

07/04/2026, 16:55

64. LHCb: Rare b->sll and b->dll transitions including Lambda_b decays

Camille Normand (IGFAE, USC)

07/04/2026, 17:20

18. Reconciling hadronic and partonic analyticity in $b \to s \ell\ell$ transitions

Simon Mutke (University of Bonn)

07/04/2026, 17:45

To search for physics beyond the Standard Model (BSM) some of the most promising and sensitive observables are constituted by flavour-changing neutral-current $B$-meson decays mediated by $b \to s \ell\ell$ transitions. While several hints for deviations from the Standard Model have emerged over the recent years, it has also become clear that a more thorough theoretical understanding of...

65. LHCb: Semileptonic b->q l nu decays and non-leptonic B decays

Alejandro Rodríguez Álvarez (University of Barcelona (ICCUB))

09/04/2026, 09:00

66. Belle II: Latest developments on semileptonic (and rare) B decays

Youngjoon Kwon (Yonsei University)

09/04/2026, 09:25

67. Lattice QCD predictions for semileptonic B decays

Oliver Witzel (University of Siegen)

09/04/2026, 09:50

14. Search for the rare B_{s}^0 \to mu^+ mu^- mu^+ mu^- decays at CMS

Marco Buonsante (Istituto Nazionale di Fisica Nucleare)

09/04/2026, 10:15

A search for the rare B_(s)^0 \to \mu^+ \mu^- \mu^+ \mu^- decays is presented using proton-proton collision data collected by the CMS experiment at \sqrt{s} = 13.6 TeV between 2022 and 2024, corresponding to an integrated luminosity of 170 fb^{-1}. These Cabibbo-suppressed flavor-changing neutral current processes are highly suppressed in the Standard Model and are sensitive to potential new...

28. Search for rare radiative decays of the Higgs boson with the CMS experiment

Jose Enrique Palencia Cortezon (Universidad de Oviedo)

One of the key goals of the LHC physics program is the precise determination of the Higgs boson couplings to fermions across all generations. While couplings to third-generation fermions have been established, those to light quarks remain largely unconstrained. Rare exclusive radiative decays of the Higgs boson, such as H → ρ/ϕ/K*⁰ + γ, provide a unique and direct probe of the Yukawa couplings...