M. Kaleta

activity

20242026

collaborators

10 papers

hep-ex2026

Measurement of inclusive $B \to X_{u} ℓ I^½$ partial branching fractions and $∣ V_{u b} ∣$ at Belle II

Belle II Collaboration, M. Abumusabh, I. Adachi +419

A sample of 365 fb $^{- 1}$ of $e^{+} e^{-} \to I^¥ (4 S) \to B B ˉ$ data collected by the Belle II experiment is used to measure the partial branching fractions of charmless semileptonic…

hep-ex2025

Measurement of the $I^_{c}^{+}$ lifetime

Belle II Collaboration, F. AbudinÃ©n, L. Aggarwal +360

An absolute measurement of the $I^_{c}^{+}$ lifetime is reported using $I^_{c}^{+} \to p K^{-} I ¨ ^{+}$ decays in events reconstructed from data collected by the Belle II experiment at t…

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…

hep-ex2025

Search for Pcs(4459) and Pcs(4338) in Upsilon(1S,2S) inclusive decays at Belle

I. Adachi, L. Aggarwal, H. Ahmed +402

Using data samples of 102 million Upsilon(1S) events and 158 million Upsilon(2S) events collected by the Belle detector at the KEKB asymmetric-energy $e^{+} e^{-}$ collider, we search f…

hep-ex2025

Measurement of the branching fraction, polarization, and time-dependent $C P$ asymmetry in $B^{0} \to I ¨ ^{+} I ¨ ^{-}$ decays and constraint on the CKM angle $I ¨ _{2}$

Belle II Collaboration, I. Adachi, L. Aggarwal +377

We present a measurement of the branching fraction and fraction of longitudinal polarization of $B^{0} \to I ¨ ^{+} I ¨ ^{-}$ decays, which have two $I ¨ ^{0}$ 's in the final state. We also meas…

physics.ins-det2025

Operational experience and performance of the Silicon Vertex Detector after the first long shutdown of Belle II

K. Ravindran, K. Adamczyk, H. Aihara +62

In 2024, the Belle II experiment resumed data taking after the Long Shutdown 1, which was required to install a two-layer pixel detector and upgrade accelerator components. We desc…

Measurement of inclusive B→Xu​ℓI^½ partial branching fractions and ∣Vub​∣ at Belle II

Measurement of the I^c+​ lifetime

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

Search for Pcs(4459) and Pcs(4338) in Upsilon(1S,2S) inclusive decays at Belle

Measurement of the branching fraction, polarization, and time-dependent CP asymmetry in B0→I¨+I¨− decays and constraint on the CKM angle I¨2​

Operational experience and performance of the Silicon Vertex Detector after the first long shutdown of Belle II

Measurement of inclusive $B \to X_{u} ℓ I^½$ partial branching fractions and $∣ V_{u b} ∣$ at Belle II

Measurement of the $I^_{c}^{+}$ lifetime

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

Measurement of the branching fraction, polarization, and time-dependent $C P$ asymmetry in $B^{0} \to I ¨ ^{+} I ¨ ^{-}$ decays and constraint on the CKM angle $I ¨ _{2}$