A. Lozar

activity

20242026

collaborators

8 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

First search for $B \to X_{s} I^½ I^ˉ ½$ decays

Belle II Collaboration, M. Abumusabh, I. Adachi +440

We report the first search for the flavor-changing neutral-current decays $B \to X_{s} I^½ I^ˉ ½$ , where $X_{s}$ is a hadronic system with strangeness equal to 1, in data co…

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

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-ex2026

First measurements of the branching fractions for the decay modes $I^_{c}^{0} \to I^ I^\cdot$ and $I^_{c}^{0} \to I^ I^\cdot^{'}$ and search for the decay $I^_{c}^{0} \to I^ I ¨ ^{0}$ using Belle and Belle II data

Belle, Belle II Collaborations, : +321

Using data samples of 988.4 fb $^{- 1}$ and 427.9 fb $^{- 1}$ collected with the Belle and Belle II detectors, we present a study of the singly Cabibbo-suppressed decays $Î_c^{0} \to…

physics.ins-det2025

Characterisation of the LAPPD, a large area microchannel-plate PMT

S. Korpar, R. Dolenec, F. Grijalva +7

We present a comprehensive characterization of the LAPPD Gen-II, a large-area microchannel-plate photomultiplier tube (MCP-PMT) equipped with a capacitively coupled sensing (readou…

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

First search for B→Xs​I^½I^ˉ½ decays

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

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

First measurements of the branching fractions for the decay modes I^c0​→I^I^⋅ and I^c0​→I^I^⋅′ and search for the decay I^c0​→I^I¨0 using Belle and Belle II data

Characterisation of the LAPPD, a large area microchannel-plate PMT

First search for $B \to X_{s} I^½ I^ˉ ½$ decays

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

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

First measurements of the branching fractions for the decay modes $I^_{c}^{0} \to I^ I^\cdot$ and $I^_{c}^{0} \to I^ I^\cdot^{'}$ and search for the decay $I^_{c}^{0} \to I^ I ¨ ^{0}$ using Belle and Belle II data