Data Readout Triggering for Phase 2 of the Belle II Particle Detector Experiment Based on Neural Networks

X, Y, Z search at Belle II

EPJ Web of Conferences ◽

10.1051/epjconf/201921202010 ◽

2019 ◽

Vol 212 ◽

pp. 02010

Author(s):

Elisabetta Prencipe

Keyword(s):

Line Shape ◽

Phase 2 ◽

Phase 3 ◽

Physics Program ◽

Data Analyses ◽

Belle Ii ◽

Open Issues

The Belle II experiment has successfully concluded Phase-2 of data taking in July 2018, and just started Phase-3, with the complete detector setup. Great perspectives and unique physics cases are enhanced in the Belle II physics program. In the sector of charmonium and spectroscopy, Belle II will investigate several physics processes: ISR physics for the vector states, bottomonium search and the study of the X(3872) line shape are some examples where the contribution of the Belle II experiment will help in better understanding QCD, for which several open issues still remain unsolved. First simulations and data analyses will be shown, with the first available dataset (2018), and the plan for spectroscopy search at Belle II will be discussed.

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Track vertex reconstruction with neural networks at the first level trigger of Belle II

EPJ Web of Conferences ◽

10.1051/epjconf/201715000009 ◽

2017 ◽

Vol 150 ◽

pp. 00009 ◽

Cited By ~ 5

Author(s):

Sara Neuhaus ◽

Sebastian Skambraks ◽

Christian Kiesling

Keyword(s):

Neural Networks ◽

Level Trigger ◽

Belle Ii ◽

Vertex Reconstruction

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Universal Particle Detector Experiment

Acta Astronautica ◽

10.1016/0094-5765(94)00178-o ◽

1995 ◽

Vol 35 ◽

pp. 145-154

Author(s):

Russell Paul Cain ◽

Jeffery C. Lesho ◽

O. Manuel Uy ◽

John P. Oliver ◽

C.G. Simon ◽

...

Keyword(s):

Particle Detector ◽

Detector Experiment

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Online Estimation of Particle Track Parameters based on Neural Networks for the Belle II Trigger System

10.22323/1.372.0010 ◽

2020 ◽

Author(s):

Steffen Baehr ◽

Kai Lukas Unger ◽

Juergen Becker ◽

Felix Meggendorfer ◽

Sebastian Skambraks ◽

...

Keyword(s):

Neural Networks ◽

Particle Track ◽

Trigger System ◽

Online Estimation ◽

Belle Ii

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Legal Question Answering System using Neural Attention

10.29007/4l2q ◽

2018 ◽

Author(s):

Ayaka Morimoto ◽

Daiki Kubo ◽

Motoki Sato ◽

Hiroyuki Shindo ◽

Yuji Matsumoto

Keyword(s):

Neural Networks ◽

Standard Method ◽

Question Answering ◽

Phase 1 ◽

Civil Law ◽

Weighted Sum ◽

Phase 2 ◽

Relevant Article ◽

Question Answering System ◽

The Given

This year’s COLIEE has two tasks called phases 1 and 2. The phase 1 needs to find the relevant article given a query t2, and the phase 2 needs to answer whether the given query t2 is yes or no according to Japan civil law articles.This paper presents our proposals for the phase 2 task. Two methods are presented. The first goes along the standard method taken by many authors, such that the relevant article t1 is selected by the similarity to the query t2 at the requirement (condition) and the effect (conclusion) descriptions of the articles. The second is our new proposal, in which Neural Networks with attention mechanism are applied to all the civil law articles in deciding the truthness of the query t2. This method takes into account all the articles by properly calculating their weighted sum.

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Data quality monitors of vertex detectors at the start of the Belle II experiment

EPJ Web of Conferences ◽

10.1051/epjconf/202024501035 ◽

2020 ◽

Vol 245 ◽

pp. 01035

Author(s):

Peter Kodyš ◽

Jesus Abudinen ◽

Karlheinz Georg Ackermann ◽

Karol Mateusz Adamczyk ◽

Patrick Ahlburg ◽

...

Keyword(s):

Data Quality ◽

Quality Monitoring ◽

Software Framework ◽

Phase 2 ◽

Full Data ◽

Vertex Detector ◽

Belle Detector ◽

Electron Positron ◽

Belle Ii ◽

Positron Collisions

The Belle II experiment features a substantial upgrade of the Belle detector and will operate at the SuperKEKB energy-asymmetric e+e− collider at KEK in Tsukuba, Japan. The accelerator completed its first phase of commissioning in 2016, and the Belle II detector saw its first electron-positron collisions in April 2018. Belle II features a newly designed silicon vertex detector based on double-sided strip layers and DEPFET pixel layers. A subset of the vertex detector was operated in 2018 to determine background conditions (Phase 2 operation). The collaboration completed full detector installation in January 2019, and the experiment started full data taking. This paper will report on the final arrangement of the silicon vertex detector part of Belle II with a focus on online monitoring of detector conditions and data quality, on the design and use of diagnostic and reference plots, and on integration with the software framework of Belle II. Data quality monitoring plots will be discussed with a focus on simulation and acquired cosmic and collision data.

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The DEPFET Mini-matrix Particle Detector

Acta Polytechnica ◽

10.14311/1241 ◽

2010 ◽

Vol 50 (4) ◽

Author(s):

J. Scheirich

Keyword(s):

Measuring System ◽

Particle Detector ◽

Readout Electronics ◽

Noise Parameters ◽

Active Pixel ◽

New Type ◽

Belle Ii

The DEPFET is new type of active pixel particle detector. A MOSFET is integrated in each pixel, providing the first amplification stage of the readout electronics. Excellent noise parameters are obtained with this layout. The DEPFET detector will be integrated as an inner detector in the BELLE II and ILC experiment. A flexible measuring system with a wide control cycle range and minimal noise was designed for testing small detector prototypes.Noise of 60 electrons of the equivalent input charge was achieved during the first measurements on the system.

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