C. Finck

Radiation damage study of Belle II silicon strip sensors with 90 MeV electron irradiation

K. Adamczyk, H. Aihara, K. Amos, S. Bacher et autres

The silicon strip sensors of the Belle II silicon vertex detector were irradiated with 90 MeV electron beams up to a 1 MeV neutron equivalent fluence of 3.1 × 1 0 13 c m − 2 , which corresponds to approximately ten …

pl, jp, it, in, fr, at, kr (code pays fourni par la source)

Impact of radiation damage to the performance of depleted monolithic active pixel sensors for Belle II vertex detector upgrade

S. Wang, M. Babeluk, T. Bergauer, M. Friedl et autres

The Belle II experiment running at the SuperKEKB e + e − collider will be upgraded during its Long Shutdown 2 (LS2), in order to reach its target instantaneous luminosity of 6 × 1 0 35 cm − 2 s − 1 …

Searches for Charged-Lepton-Flavor Violation in χ b J ( 1 P ) Decays

M. Abumusabh, I. Adachi, Agrim Aggarwal, L. Aggarwal et autres

We report the first searches for charged-lepton-flavor violation in decays of χ_{bJ}(1P) (J=0, 1, and 2) to a pair of charged leptons using 158 million ϒ(2S) decays collected with the Belle detector in e^{+}e^{-} collisions at the KEKB collider. No significant signal …

Measurement of 80-200 MeV/n $^{16}$O nuclear cross-section on Carbon and Polyethylene targets with the nuclear emulsion detector of the FOOT experiment

FOOT Collaboration, Giuliana Galati, Vincenzo Boccia, A. Alexandrov et autres

Accurate knowledge of nuclear fragmentation cross-sections is essential for optimizing charged particle therapy. In this study, conducted within the framework of the FOOT (FragmentatiOn Of Target) experiment, we present the first measurements with a large angular acceptance of total charge-changing cross-section and …

Measurement of 80-200 MeV/n $^{16}$O nuclear cross-section on Carbon and Polyethylene targets with the nuclear emulsion detector of the FOOT experiment

FOOT Collaboration, Giuliana Galati, Vincenzo Boccia, A. Alexandrov et autres

Accurate knowledge of nuclear fragmentation cross-sections is essential for optimizing charged particle therapy. In this study, conducted within the framework of the FOOT (FragmentatiOn Of Target) experiment, we present the first measurements with a large angular acceptance of total charge-changing cross-section and …

it, jp, fr, cu, de (code pays fourni par la source)

Study of e+e− → π+π−Υ(1D) at Belle II

M. Abumusabh, I. Adachi, Agrim Aggarwal, L. Aggarwal et autres

A bstract The bottomonium spectrum, consisting of bound states of a b quark and an anti- b quark, provides an excellent laboratory for probing quantum chromodynamics in the non-perturbative regime. While S and P-wave bottomonium states are well studied experimentally, information on …

us (code pays fourni par la source)

Search for the Decay B + → K + τ + τ − Using Data from the Belle and Belle II Experiments

M. Abumusabh, I. Adachi, K. Adamczyk, Agrim Aggarwal et autres

We report a search for the rare decay B^{+}→K^{+}τ^{+}τ^{-} using 1.2×10^{9} ϒ(4S) mesons produced near threshold in electron-positron collisions and collected by the Belle and Belle II experiments. We fully reconstruct the hadronic decay of one B meson produced in the ϒ(4S)→B^{+}B^{-} …

Study of e + e − → h + h − J / ψ ( h = π , K , p ) via initial-state radiation at Belle II

M. Abumusabh, I. Adachi, Agrim Aggarwal, L. Aggarwal et autres

Using a data sample of 427.9 fb − 1 collected by the Belle II detector at or near the ϒ ( 4 S ) and ϒ ( 10753 ) resonances, the cross sections for e + e − → h + h …

Search for Feebly Interacting Particles in B Decays with Missing Energy at Belle

M. Abumusabh, I. Adachi, L. Aggarwal, H. Ahmed et autres

We present a search for an invisible hidden-sector particle X_{inv}, produced in B^{0}→D[over ¯]^{0}X_{inv} and B^{±}→hX_{inv} decays, where h=π^{±}, K^{±}, D_{s}^{±}, p^{±}. The search is performed using e^{+}e^{-} collision data recorded with the Belle detector, corresponding to 711 fb^{-1}. No significant signal …

Study of B + → μ + ν μ decays at Belle and Belle II

M. Abumusabh, I. Adachi, K. Adamczyk, Agrim Aggarwal et autres

We report a measurement of the branching fraction for the leptonic decay B + → μ + ν μ . This work presents the first B + → μ + ν μ result using Belle II data, an updated Belle measurement that …

Observation of e + e − → η ϒ ( 2 S ) and search for e + e − → η ϒ ( 1 S ) , γ X b at s near 10.75 GeV

I. Adachi, L. Aggarwal, H. Ahmed, Y. H. Ahn et autres

We present an analysis of the processes e + e − → η ϒ ( 1 S ) , η ϒ ( 2 S ) , and γ X b with X b → π + π − χ b J , …

Search for e + e − → γ χ b J ( J = 0 , 1, 2) near s = 10.746 GeV at Belle II

M. Abumusabh, I. Adachi, L. Aggarwal, H. Ahmed et autres

We search for the e + e − → γ χ 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 the Belle II detector …