papers

Publications (39)

hep-ex2020

Measurement of the branching fraction with early Belle II data

Belle II Collaboration, F. Abudinén, I. Adachi +533

We measure the branching fractions for the decays and using of data coll…

math.DG2007

On critical normal sections for two-dimensional immersions in R^{n+2}

S. Froehlich, F. Mueller

We study orthonormal normal sections of two-dimensional immersions in , at which these sections are critical for a functional of total torsion. In partic…

physics.ins-det2017

Development of a Highly Selective First-Level Muon Trigger for ATLAS at HL-LHC Exploiting Precision Muon Drift-Tube Data

S. Abovyan, V. Danielyan, M. Fras +8

The High-Luminosity LHC (HL-LHC) will provide the unique opportunity to explore the nature of physics beyond the Standard Model of strong and electroweak interactions. Highly selec…

hep-ex2021

Measurement of the time-integrated mixing probability with a semileptonic double-tagging strategy and of Belle II collision data

Belle II Collaboration, F. Abudinén, I. Adachi +550

We present the first measurement of the time-integrated mixing probability using Belle II data collected at a center-of-mass (CM) energy of 10.58 GeV, corresponding to the m…

hep-ex2021

Study of decays using of Belle II data

Belle II Collaboration, F. Abudinen, I. Adachi +549

We report measurements related to hadronic decays to final states that contain charm mesons. The analyses are performed on a data set collected by the B…

hep-ex2020

Measurement of Hadronic Mass Moments in Decays at Belle II

Belle II Collaboration, F. Abudinén, I. Adachi +540

We present measurements of the first six hadronic mass moments in semileptonic decays. The hadronic mass moments, together with other observables of inc…

hep-ex2021

Combined analysis of Belle and Belle II data to determine the CKM angle using decays

Belle, Belle II Collaborations, : +319

We present a measurement of the Cabibbo-Kobayashi-Maskawa unitarity triangle angle (also known as~) using a model-independent Dalitz plot analysis of \linebreak $B^+…

physics.optics2008

Optomechanical Stochastic Resonance in a Macroscopic Torsion Oscillator

F. Mueller, S. Heugel, L. J. Wang

Linear mechanical oscillators have been applied to measure very small forces, mostly with the help of noise suppression. In contrast, adding noise to non-linear oscillators can imp…

hep-ex2020

Measurement of the lifetime using fully reconstructed hadronic decays in the 2019 Belle II dataset

Belle II Collaboration, F. Abudinén, I. Adachi +534

This document presents the measurement of meson lifetimes using the 2019 Belle II dataset that corresponds to an integrated luminosity of fb. Each candid…

hep-ex2020

Search for an invisibly decaying boson at Belle II in plus missing energy final states

Belle II Collaboration, I. Adachi, P. Ahlburg +358

Theories beyond the standard model often predict the existence of an additional neutral boson, the . Using data collected by the Belle II experiment during 2018 at the…

hep-ex2021

Measurements of branching fractions and direct CP asymmetries in , and using 2019 and 2020 data

Belle II Collaboration, F. Abudinén, I. Adachi +549

We report updated measurements of branching fractions () and CP-violating charge asymmetries () for charmless decays at Belle II, which opera…

hep-ex2020

First flavor tagging calibration using 2019 Belle II data

Belle II Collaboration, F. Abudinén, I. Adachi +540

We report on the first calibration of the standard Belle II -flavor tagger using the full data set collected at the resonance in 2019 with the Belle II detector a…

hep-ex2020

A calibration of the Belle II hadronic tag-side reconstruction algorithm with decays

Belle II Collaboration, F. Abudinén, I. Adachi +540

Tag-side reconstruction is an important method for reconstructing meson decays with missing energy. The Belle II tag-side reconstruction algorithm, Full Event Interpretation, r…

hep-ex2021

Angular analysis of decays reconstructed in 2019-2020 Belle II data

Belle II collaboration, F. Abudinén, I. Adachi +549

We report on the first Belle II measurement of the branching fraction () and longitudinal polarization fraction () of decays. We reconstruct $B^…

hep-ex2021

Measurements of branching fractions and CP-violating charge asymmetries in multibody charmless decays reconstructed in 2019-2020 Belle II data

Belle II collaboration, F. Abudinén, I. Adachi +549

We report on measurements of branching fractions () and CP-violating charge asymmetries () of multibody charmless decays reconstructed by the…

hep-ex2019

The Belle II Physics Book

E. Kou, P. Urquijo, W. Altmannshofer +524

We present the physics program of the Belle II experiment, located on the intensity frontier SuperKEKB collider. Belle II collected its first collisions in 2018, and is ex…

physics.ins-det2012

DEPFET active pixel detectors for a future linear collider

O. Alonso, R. Casanova, A. Dieguez +84

The DEPFET collaboration develops highly granular, ultra-transparent active pixel detectors for high-performance vertex reconstruction at future collider experiments. The character…

hep-ex2020

Measurement of the semileptonic branching fraction with fully reconstructed meson decays and 34.6 fbof Belle II data

Belle II Collaboration, F. Abudinen, I. Adachi +540

We present a first measurement of the branching fraction using fully reconstructed meson decays employing the Full Event Int…

nucl-ex2016

Photoproduction ofeta-pi pairs off nucleons and deuterons

A. Kaeser, F. Mueller, J. Ahrens +66

Quasi-free photoproduction of -pairs has been investigated from threshold up to incident photon energies of 1.4 GeV, respectively up to photon-nucleon invariant masses up to…

cond-mat.mes-hall2013

Single-hole tunneling through a two-dimensional hole gas in intrinsic silicon

P. C. Spruijtenburg, J. Ridderbos, F. Mueller +5

In this letter we report single-hole tunneling through a quantum dot in a two-dimensional hole gas, situated in a narrow-channel field-effect transistor in intrinsic silicon. Two l…

hep-ex2021

Measurements of the branching fractions for decays at Belle II

F. Abudinén, I. Adachi, R. Adak +565

This paper reports a study of decays using fb of data collected during 2019--2020 by the Belle II experiment at the SuperKEKB asym…

cond-mat.supr-con2008

Coherent Activation of Zero-Field Fiske Modes in Arrays of Josephson Junctions

I. Ottaviani, M. Cirillo, M. Lucci +6

Series arrays of Josephson junctions show evidence of a mode in which all the junctions oscillate in synchronism on voltage resonances appearing, in zero external magnetic field, a…

hep-ex2021

Exclusive Decays with Hadronic Full-event-interpretation Tagging in 62.8 fb of Belle II Data

Belle II Collaboration, F. Abudinén, I. Adachi +565

We present a reconstruction in early data of the semileptonic decay , and first results of a reconstruction of the decays

hep-ex2021

Rediscovery of at Belle II

Belle II Collaboration, F. Abudinén, I. Adachi +545

We present preliminary results on the reconstruction of the decay, where or $…

hep-ex2019

Measurement of the integrated luminosity of the Phase 2 data of the Belle II experiment

Belle II Collaboration, F. Abudinén, I. Adachi +420

From April to July 2018, a data sample at the peak energy of the resonance was collected with the Belle~II detector at the SuperKEKB electron-positron collider. This is th…

hep-ex2021

Measurement of the branching fraction for decays reconstructed in 2019-2020 Belle II data

Belle II Collaboration, F. Abudinén, I. Adachi +551

We report the first reconstruction of the decay mode at Belle II using samples of 2019 and 2020 data that correspond to 62.8 fb of integrated lumin…

hep-ex2021

First search for direct -violating asymmetry in decays at Belle II

Belle II Collaboration, F. Abudinén, I. Adachi +551

We report on the first measurement of the direct -violating asymmetry () in the charmless decay at Belle II and an updated measurement of its bra…

hep-ex2021

Measurement of the branching fractions of decays using 2019/2020 Belle II data

Belle II Collaboration, F. Abudinén, I. Adachi +545

This note describes the rediscovery of decays in Belle II data, both in the charged and neutral final state: and . The is searc…

hep-ex2021

lepton mass measurement at Belle II

Belle II Collaboration, F. Abudinén, I. Adachi +539

The reconstruction of tau-pair production, , from the subsequent 3-prong () and 1-prong ($τ^{-} \to…

hep-ex2020

Studies of the semileptonic and decay processes with 34.6 fb of Belle II data

Belle II Collaboration, F. Abudinén, I. Adachi +542

We report measurements of the and processes using 34.6 fb of collision events recorded by the Bell…

physics.optics2007

Observation of opto-mechanical multistability in a high Q torsion balance oscillator

F. Mueller, S. Heugel, L. J. Wang

We observe the opto-mechanical multistability of a macroscopic torsion balance oscillator. The torsion oscillator forms the moving mirror of a hemi-spherical laser light cavity. Wh…

hep-ex2021

Measurements of branching fractions and direct -violating asymmetries in $B^+ \to K^+ π^0~\mbox{and}~π^+ π^0$ decays using 2019 and 2020 Belle II data

F. Abudinén, I. Adachi, R. Adak +549

We report measurements of branching fractions () and direct -violating asymmetries () for the decays and $B^+ \to π^+π…

hep-ex2020

Measurements of branching fractions and CP-violating charge asymmetries in charmless decays reconstructed in 2019--2020 Belle~II data

Belle II Collaboration, F. Abudinén, I. Adachi +544

We report on first measurements of branching fractions~() and CP-violating charge asymmetries~() in charmless decays at Belle~II. We use a sample of e…

physics.ins-det2007

Sub-Kelvin Cooling of a Macroscopic Oscillator and femto-Newton Force Measurement

F. Mueller, S. Heugel, L. J. Wang

Measuring very small forces, particularly those of a gravitational nature, has always been of great interest, as fundamental tests of our understanding of the physical laws. Ultra-…

hep-ex2020

Charmless decay reconstruction in 2019 Belle II data

Belle II Collaboration, F. Abudinén, I. Adachi +533

We report on the reconstruction of various charmless decays from electron-positron collisions at the energy corresponding to the resonance collected with the Belle II…

cond-mat.mes-hall2017

Passivation and characterization of charge defects in ambipolar silicon quantum dots

P. C. Spruijtenburg, S. V. Amitonov, F. Mueller +2

In this Report we show the role of charge defects in the context of the formation of electrostatically defined quantum dots. We introduce a barrier array structure to probe defects…

hep-ex2020

Exclusive Decays with Hadronic Full Event Interpretation Tagging in 34.6 fb of Belle II Data

Belle II Collaboration, F. Abudinén, I. Adachi +541

We present the results of the re-discovery of the decay in 34.6 fb of Belle II data using hadronic -tagging via the Full Event Interpretatio…

hep-ex2020

Rediscovery of decays and measurement of the longitudinal polarization fraction in decays using the Summer 2020 Belle II dataset

F. Abudinén, I. Adachi, R. Adak +538

We utilize a sample of 34.6 fb, collected by the Belle II experiment at the SuperKEKB asymmetric energy collider, to search for the , $B^+ \to ϕK^{*…

hep-ex2022

-flavor tagging at Belle II

F. Abudinén, N. Akopov, A. Aloisio +118

We report on new flavor tagging algorithms developed to determine the quark-flavor content of bottom () mesons at Belle II. The algorithms provide essential inputs for measureme…