Probing dark photons from a light scalar at Belle II
Sign Up to like & getrecommendations! Published in 2024 at "Journal of High Energy Physics"
DOI: 10.1007/jhep05(2024)094
Abstract: In the minimal U(1) extension of the Standard Model (SM), a new gauge boson referred to as “dark photon” is predicted. The dark-photon mass can be generated from an additional Higgs mechanism associated with a… read more here.
Keywords: dark scalar; dark photon; belle; probing dark ... See more keywords
Determination of the CKM angle ϕ3 from a combination of Belle and Belle II results
Sign Up to like & getrecommendations! Published in 2024 at "Journal of High Energy Physics"
DOI: 10.1007/jhep10(2024)143
Abstract: We report a determination of the CKM angle ϕ3, also known as γ, from a combination of measurements using samples of up to 711 fb−1 from the Belle experiment and up to 362 fb−1 from… read more here.
Keywords: belle; combination; ckm angle; determination ckm ... See more keywords
Design of the OBELIX monolithic CMOS pixel sensor for an upgrade of the Belle II vertex detector
Sign Up to like & getrecommendations! Published in 2024 at "Journal of Instrumentation"
DOI: 10.1088/1748-0221/19/04/c04020
Abstract: The Belle II collaboration has initiated a program to upgrade its detector in order to address the challenges set by the increase of the SuperKEKB collider luminosity, targeting 6×1035 cm2 s-1. A monolithic CMOS pixel… read more here.
Keywords: belle; detector; monolithic cmos; cmos pixel ... See more keywords
First extraction of the Λ polarizing fragmentation function from Belle e+e− data
Sign Up to like & getrecommendations! Published in 2020 at "Physical Review D"
DOI: 10.1103/physrevd.102.054001
Abstract: We present a thorough phenomenological analysis of the experimental data from Belle Collaboration for the transverse $\Lambda$ and $\bar\Lambda$ polarisation, measured in $e^+e^-$ annihilation processes, for the case of inclusive (plus a jet) and associated… read more here.
Keywords: first extraction; fragmentation function; belle;
Signatures of supersymmetry and a Lμ−Lτ gauge boson at Belle-II
Sign Up to like & getrecommendations! Published in 2019 at "Physical Review D"
DOI: 10.1103/physrevd.99.035035
Abstract: We propose that the $\gamma + E \hspace{-.5em}/\;\:$ signal at the Belle-II will be a smoking gun for supersymmetry (SUSY) in the presence of a gauged $U(1)_{L_{\mu}-L_{\tau}}$ symmetry. A striking consequence of breaking the enhanced… read more here.
Keywords: gamma; signatures supersymmetry; belle; energy ... See more keywords
Search for Lepton-Flavor-Violating Decay Modes B^{0}→K_{S}^{0}τ^{±}ℓ^{∓} with Hadronic B Tagging at Belle and Belle II.
Sign Up to like & getrecommendations! Published in 2025 at "Physical review letters"
DOI: 10.1103/yzvh-v3hm
Abstract: We present the first search for the lepton-flavor-violating decay modes B^{0}→K_{S}^{0}τ^{±}ℓ^{∓} (ℓ=μ,e) using the 711 and 365 fb^{-1} data samples recorded by the Belle and Belle II detectors, respectively. We use a hadronic B-tagging technique to fully… read more here.
Keywords: belle; decay modes; violating decay; lepton flavor ... See more keywords