R. de Sangro

activity

20242026

collaborators

6 papers

hep-ex2026

Search for a new 17 MeV resonance via $e^{+} e^{-}$ annihilation with the PADME Experiment

F. Bossi, R. De Sangro, C. Di Giulio +24

The PADME Experiment at the Frascati DA $I^¦$ NE LINAC has searched for a hypothetical particle with mass around 17 MeV, commonly referred to as the X17, using a positron beam inciden…

hep-ex2025

Measurement of $C P$ asymmetries in $B^{0} \to K_{S}^{0} I ¨ ^{0} I^^{3}$ decays at Belle II

Belle II Collaboration, I. Adachi, L. Aggarwal +436

We report measurements of time-dependent $C P$ asymmetries in $B^{0} \to K_{S}^{0} I ¨ ^{0} I^^{3}$ decays based on a data sample of $(388 \pm 6) \times 1 0^{6}$ $B B ˉ$ events collected at the $Î¥(4…

hep-ex2025

Search for $B^{0} \to K^{* 0} I ¨ ^{+} I ¨ ^{-}$ decays at the Belle II experiment

Belle II Collaboration, I. Adachi, K. Adamczyk +446

We present a search for the rare flavor-changing neutral-current decay $B^{0} \to K^{* 0} I ¨ ^{+} I ¨ ^{-}$ with data collected by the Belle II experiment at the SuperKEKB electron-posit…

hep-ex2025

Measurement of $B \to K^{*} (892) I^^{3}$ decays at Belle II

Belle II Collaboration, I. Adachi, L. Aggarwal +451

We present measurements of $B \to K^{*} (892) I^^{3}$ decays using $365 fb^{- 1}$ of data collected from 2019 to 2022 by the Belle~II experiment at the SuperKEKB asymmetric-energ…

hep-ex2025

A search for baryogenesis and dark matter in $B^{+} \to I^_{c}^{+} + invisible$ decays

BABAR Collaboration

A mechanism of baryogenesis and dark matter production via $B$ -meson oscillations and decays has recently been proposed to explain the observed dark matter abundance and matter-ant…

hep-ex2024

Measurement of $C P$ asymmetries in $B^{0} \to I^\cdot^{'} K_{s}^{0}$ decays at Belle II

Belle II Collaboration, I. Adachi, L. Aggarwal +399

We describe a measurement of charge-parity ( $C P$ ) violation asymmetries in $B^{0} \to I^\cdot^{'} K_{S}^{0}$ decays using Belle II data. We consider $I^\cdot^{'} \to I^\cdot (\to I^^{3} I^^{3}) I ¨ ^{+} I ¨ ^{-}$ and $Î·'\toÏ(\toÏ^…

Search for a new 17 MeV resonance via e+e− annihilation with the PADME Experiment

Measurement of CP asymmetries in B0→KS0​I¨0I^3 decays at Belle II

Search for B0→K∗0I¨+I¨− decays at the Belle II experiment

Measurement of B→K∗(892)I^3 decays at Belle II

A search for baryogenesis and dark matter in B+→I^c+​+invisible decays

Measurement of CP asymmetries in B0→I^⋅′Ks0​ decays at Belle II

Search for a new 17 MeV resonance via $e^{+} e^{-}$ annihilation with the PADME Experiment

Measurement of $C P$ asymmetries in $B^{0} \to K_{S}^{0} I ¨ ^{0} I^^{3}$ decays at Belle II

Search for $B^{0} \to K^{* 0} I ¨ ^{+} I ¨ ^{-}$ decays at the Belle II experiment

Measurement of $B \to K^{*} (892) I^^{3}$ decays at Belle II

A search for baryogenesis and dark matter in $B^{+} \to I^_{c}^{+} + invisible$ decays

Measurement of $C P$ asymmetries in $B^{0} \to I^\cdot^{'} K_{s}^{0}$ decays at Belle II