Title▼ | Belle II Number▼ | Authors | Date▼ | Downloads |
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Implementing the Belle II Conditions Database Using Industry-Standard ToolsPublic
The Belle II Experiment at KEK is preparing for first collisions in early 2018. Processing the large amounts of data that will be produced will require conditions data to be readily available to systems worldwide in a fast and efficient manner that is straightforward to both the user and maintainer. The Belle II Conditions Database was designed … |
BELLE2-POSTER-CONF-2017-016 |
Lynn Wood,
Todd Elsethagen,
Kevin Fox,
Malachi Schram
Jeter Hall, Bibi Raju, Eric Stephan, Jovan Araiza |
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The Belle II computing systemPublic
In order to process large-scale data and provide the physics results in a timely fashion, the Belle II experiment has adopted existing distributed computing technologies such as "GRID" and "Cloud", connecting the computing resources of collaborating institutes in the world via high speed networks. |
BELLE2-POSTER-CONF-2017-014 | Michel Hernandez-Villanueva, Eduard De La Cruz-Burelo |
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Track extrapolation and muon identification with GEANT4E in Belle II event reconstructionPublic
I describe the charged-track extrapolation and muon-identification modules in the Belle II data-analysis code framework (basf2). These modules use GEANT4E to extrapolate reconstructed charged tracks outward from the Belle II Central Drift Chamber into the outer particle-identification detectors, the electromagnetic calorimeter, and the K-long and … |
BELLE2-POSTER-CONF-2019-003 | Leo Piilonen |
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Series Production Testing, Commissioning and Initial Operation of the Belle II Silicon Vertex Detector Readout SystemPublic
This poster shows hardware and procedures to test all components of the SVD data readout system (Cables, FADC boards, JBs) of the Belle II Silicon Vertex Detector (SVD) individually after the series production and the findings of the commissioning of the whole readout chain using final hardware in two test setups. |
BELLE2-POSTER-CONF-2019-002 | Richard Thalmeier |
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Run and Slow Control System of the Belle II Silicon Vertex DetectorPublic
The Belle II Silicon Vertex Detector (SVD) has been installed recently and is now prepared for physics run at SuperKEKB factory, Tsukuba, Japan. For a reliable operation and data taking of the SVD a sophisticated and robust run and slow control system has been implemented, which utilizes the Experimental Physics and Industrial Control System (EPIC… |
BELLE2-POSTER-CONF-2019-001 |
Christian Irmler
Hao Yin |
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Performance Studies of Belle II SVDPublic
The Belle II experiment at the SuperKEKB asymmetric-energy e+e- collider in KEK, Japan will operate at an instantaneous luminosity of 8×1035 cm-2s-1, which is about 40 times larger than that of its predecessor, Belle. It is built with the aim of collecting a huge amount of data corresponding to an integration luminosity of about 50 ab-1 by 2025 fo… |
BELLE2-POSTER-CONF-2018-009 | Kavita Lalwani |
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Belle II Virtual RealityPublic
(none) |
BELLE2-POSTER-CONF-2018-008 | Leo Piilonen |
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Belle II VR: A Virtual Reality Visualization of Subatomic Particle PhysicsPublic
I describe a novel interactive virtual reality visualization of subatomic particle physics, designed as an educational tool for learning about and exploring the subatomic particle collision events of the Belle II experiment. The visualization is designed for untethered, locomotive virtual reality, allowing multiple simultaneous users to walk natur… |
BELLE2-POSTER-CONF-2018-007 | Leo Piilonen |
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Track Extrapolation and Muon Identification in Belle II Event ReconstructionPublic
I describe the charged-track extrapolation and muon-identification modules in the Belle II data-analysis code framework (basf2). These modules use GEANT4E to extrapolate reconstructed charged tracks outward from the Belle II Central Drift Chamber into the outer particle-identification detectors, the electromagnetic calorimeter, and the K-long and … |
BELLE2-POSTER-CONF-2018-006 | Leo Piilonen |
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Decay Chain Reconstruction in Belle IIPublic
The Belle II detector will begin its data taking phase in 2018. Featuring a state of the art vertex detector with innovative pixel sensors, it will record collisions of e+e- beams from the SuperKEKB accelerator which is slated to provide luminosities 40x higher than KEKB. This large amount of data will come at the price of an increased beam backg… |
BELLE2-POSTER-CONF-2018-005 | Jo-Frederik Krohn, Francesco Tenchini |
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Belle2Lab - Interactive Tool for Public Analysis of Belle II DataPublic
Several data samples from a Belle II experiment will be available to the general public as a part of experiment outreach activities. Belle2Lab is designed as an interactive graphical user interface to reconstructed particles, offering users basic particle selection tools. The tool is based on a Blockly JavaScript graphical code generator and can b… |
BELLE2-POSTER-CONF-2018-004 | Rok Pestotnik |
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Charm physics prospects at Belle IIPublic
Belle II is a major upgrade of the Belle experiment, and will operate at the B-factory SuperKEKB, located at the KEK laboratory in Tsukuba, Japan. Belle II will be an ideal laboratory to study the properties of the charm quark, collecting more than 5x10^10 ccbar events with a total integrated luminosity of about 50 ab^-1 in the next decade. We wil… |
BELLE2-POSTER-CONF-2017-013 | Giacomo De Pietro |
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Alignment and physics performance of the Belle II vertex detectorPublic
The Belle II experiment at the SuperKEKB accelerator will start to take physics data in 2018. One of the major upgrades of the Belle II detector introduces a DEPFET pixel sensors in the two innermost layers of its silicon vertex detector, followed by four layers of silicon strip sensors. Excellent performance of the vertex reconstruction is a cruc… |
BELLE2-POSTER-CONF-2017-012 | Tadeas Bilka, Jakub Kandra |
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Performance of the Belle II SVD using offline software reconstructionPublic
The silicon vertex detector (SVD) is one of the important detector elements of the Belle II experiment at SuperKEKB. It consists of four-layers of double sided silicon strip detectors (DSSDs) arranged in concentric cylinders around the Belle II interaction point. In conjunction with the DEPFET-based pixel detector (PXD), the SVD plays a key role i… |
BELLE2-POSTER-CONF-2018-003 | Kavita Lalwani |
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Measurement of the CKM angle phi3 using B->DK at Belle IIPublic
The precise determination of the CKM angle phi3 is highly desirable to scrutinise the consistency of the Standard Model and to probe for the presence of new physics. There have been many efforts by BABAR, Belle and LHCb to measure this angle but due to the small data samples so far produced, phi3 is poorly determined. Hence, a precision measuremen… |
BELLE2-POSTER-CONF-2018-002 |
Kavita Lalwani,
Karim Trabelsi
Manish Kumar, Prashant Krishnan |
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The Belle II Experiment at KEK, Tsukuba, JapanPublic
The Belle II experiment at the asymmetric e+e− SuperKEKB collider is a major upgrade of the Belle experiment, which ran at the KEKB collider at the KEK laboratory in Japan. The design luminosity of SuperKEKB is 8×10^35 cm−2 s−1, which is about 40 times higher than that of KEKB. The expected integrated luminosity of Belle II is 50 ab−1 in five year… |
BELLE2-POSTER-CONF-2017-011 | Christoph Schwanda |
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Improvement of AMGA Python Client Library for the Belle II ExperimentPublic
This paper describes the recent improvement of AMGA python client library for the Belle II Experiment. We were drawn to the action items about library improvement after in-depth discussions with the developer of the Belle II distributed computing group. It includes GSI support, client-side metadata federation support and atomic operation support. … |
BELLE2-POSTER-CONF-2017-010 | Jae-Hyuck Kwak |
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Studies of the X(3872) at Belle IIPublic
The X(3872) is one of the most puzzling resonances ever observed. First seen by the Belle Collaboration in 2003, it solicited the effort of a hundred of experimental physicists and dozens of theorists, who nowadays are trying yet to shed light on the nature of this peculiar resonant state. It was seen in several decay modes and different productio… |
BELLE2-CONF-PROC-2022-001 | Elisabetta Prencipe |
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Precise measurements of the $D$ meson lifetimesPublic
We report the result of $D^0$ and $D^+$ lifetime measurement using $\Dz$ and $\Dp $ decays reconstructed using $72~{\rm fb^{-1}}$ of data collected by the Belle II experiment at SuperKEKB asymmetric-energy $e^+e^−$ collider. The results, $\tau(D^0)=410.5\pm1.1({\rm stat})\pm0.8({\rm syst})~{\rm fs}$ and $\tau(D^+)=1030.4\pm4.7({\rm stat})\pm 3.1({… |
BELLE2-CONF-PROC-2021-024 | Nisar Nellikunnummel |
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Migrating the Belle II collaborative services and toolsPublic
Collaborative services and tools are essential for any (HEP) experiment. They help to integrate global virtual communities by allowing to share and exchange relevant information among members by way of web-based services. Typical examples are public and internal web pages, wikis, mailing list services, issue tracking system, services for meeting o… |
BELLE2-POSTER-CONF-2018-001 |
Oliver Frost,
Thomas Kuhr,
Markus Prim,
Johannes Grygier,
Longke Li,
Phillip Urquijo,
David Dossett,
Thomas Hauth,
Andreas Gellrich,
Nils Braun,
Mikihiko Nakao
D. Jahnke-Zumbusch, D. Knittel, P. v. d. Reest, B. Vennemann, F. Schwenssen |
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