Publications (39)
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…
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…
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…
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…
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…
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…
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^+…
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…
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…
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…
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…
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…
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…
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^…
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…
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…
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…
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…
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…
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…
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…
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…
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 …
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 $…
Measurement of the integrated luminosity of the Phase 2 data of the Belle II experiment
Belle II Collaboration, F. Abudinén, I. Adachi +420
From April to July 2018, a data sample at the peak energy of the resonance was collected with the Belle~II detector at the SuperKEKB electron-positron collider. This is th…
Measurement of the branching fraction for decays reconstructed in 2019-2020 Belle II data
Belle II Collaboration, F. Abudinén, I. Adachi +551
We report the first reconstruction of the decay mode at Belle II using samples of 2019 and 2020 data that correspond to 62.8 fb of integrated lumin…
First search for direct -violating asymmetry in decays at Belle II
Belle II Collaboration, F. Abudinén, I. Adachi +551
We report on the first measurement of the direct -violating asymmetry () in the charmless decay at Belle II and an updated measurement of its bra…
Measurement of the branching fractions of decays using 2019/2020 Belle II data
Belle II Collaboration, F. Abudinén, I. Adachi +545
This note describes the rediscovery of decays in Belle II data, both in the charged and neutral final state: and . The is searc…
lepton mass measurement at Belle II
Belle II Collaboration, F. Abudinén, I. Adachi +539
The reconstruction of tau-pair production, , from the subsequent 3-prong () and 1-prong ($Ï^{-} \to…
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…
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…
Measurements of branching fractions and direct -violating asymmetries in $B^+ \to K^+ Ï^0~\mbox{and}~Ï^+ Ï^0$ 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 Ï^+Ï…
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…
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-…
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…
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…
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…
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 ÏK^{*…
-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…