C. Santos

collaborators

5 papers

hep-ex2026

Search for axion-like particles decaying to two photons at Belle II

Belle II Collaboration, M. Abumusabh, I. Adachi +450

Axion-like particles (ALPs) are predicted in many extensions of the Standard Model and provide a well-motivated portal between visible and hidden sectors through their coupling to…

hep-ex2026

Study of $B^{+} \to I^¼^{+} I^½_{I^} ¼$ decays at Belle and Belle II

Belle, Belle II Collaborations, : +412

We report a measurement of the branching fraction for the leptonic decay $B^{+} \to I^¼^{+} I^½_{I^} ¼$ . This work presents the first $B^{+} \to I^¼^{+} I^½_{I^} ¼$ result using Belle~II data, an updated Be…

hep-ex2026

Search for $e^{+} e^{-} \to I^^{3} I ¨ _{b J}$ ( $J$ = 0, 1, 2) near $s = 10.746$ GeV at Belle II

Belle II Collaboration, M. Abumusabh, I. Adachi +399

We search for the $e^{+} e^{-} \to I^^{3} I ¨ _{b J}$ ( $J$ = 0, 1, 2) processes at center-of-mass energies $s$ = 10.653, 10.701, 10.746, and 10.804 GeV. These data were collected with t…

hep-ex2026

A search for feebly-interacting particles in $B$ decays with missing energy at Belle

Belle, Belle II Collaborations, : +406

We present a search for an invisible hidden-sector particle $X_{inv}$ , produced in $B^{0} \to D ˉ^{0} X_{inv}$ and $B^{\pm} \to h X_{inv}$ decays, where $h = I ¨ ^{\pm}$ ,…

hep-ex2025

Search for lepton flavor-violating decay modes $B^{0} \to K^{* 0} I ¨ ^{\pm} ℓ^{\mp}$ ( $ℓ = e, I^¼$ ) with hadronic B-tagging at Belle and Belle II

Belle, Belle II Collaborations, : +375

We present the results of a search for the charged-lepton-flavor violating decays $B^{0} \to K^{* 0} I ¨ ^{\pm} ℓ^{\mp}$ , where $ℓ^{\mp}$ is either an electron or a muon. The…

Search for axion-like particles decaying to two photons at Belle II

Study of B+→I^¼+I^½I^​¼ decays at Belle and Belle II

Search for e+e−→I^3I¨bJ​ (J = 0, 1, 2) near s​=10.746 GeV at Belle II

A search for feebly-interacting particles in B decays with missing energy at Belle

Search for lepton flavor-violating decay modes B0→K∗0I¨±ℓ∓ (ℓ=e,I^¼) with hadronic B-tagging at Belle and Belle II

Study of $B^{+} \to I^¼^{+} I^½_{I^} ¼$ decays at Belle and Belle II

Search for $e^{+} e^{-} \to I^^{3} I ¨ _{b J}$ ( $J$ = 0, 1, 2) near $s = 10.746$ GeV at Belle II

A search for feebly-interacting particles in $B$ decays with missing energy at Belle

Search for lepton flavor-violating decay modes $B^{0} \to K^{* 0} I ¨ ^{\pm} ℓ^{\mp}$ ( $ℓ = e, I^¼$ ) with hadronic B-tagging at Belle and Belle II