Calibration and Alignment Framework for the Belle II detector

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F18%3A10389757" target="_blank" >RIV/00216208:11320/18:10389757 - isvavai.cz</a>

Result on the web

<a href="http://iopscience.iop.org/article/10.1088/1742-6596/1085/3/032023/meta" target="_blank" >http://iopscience.iop.org/article/10.1088/1742-6596/1085/3/032023/meta</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1088/1742-6596/1085/3/032023" target="_blank" >10.1088/1742-6596/1085/3/032023</a>

Result language

angličtina

Original language name

Calibration and Alignment Framework for the Belle II detector

Original language description

The Belle II experiment is approaching its first physics run in 2018. Its full capability to operate at the precision frontier will need not only excellent performance of the SuperKEKB accelerator and the detector, but also advanced calibration methods combined with data quality monitoring. To deliver data in a form suitable for analysis as soon as possible, an automated Calibration Framework (CAF) has been developed. The CAF integrates various calibration algorithms and their input collection methods for event-level data. It allows execution of the calibration workflow using different backends from local machines to a computing cluster, resolution of dependencies among algorithms, management of the produced calibration constants, and database access across possible iterations. One of the main algorithms fully integrated in the framework uses Millepede II [2] to solve a large minimization problem emerging in the track-based alignment and calibration of the pixel and strip detector, the central drift chamber, and the muon system. Advanced fitting tools are used to properly describe the detector material and magnetic field and include measurements of different sub-detectors into a single global fit performed by Millepede. This talk will present the design of the calibration framework, the integration of the Millepede calibration, and its current performance.

Czech name

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Czech description

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Type

D - Article in proceedings

CEP classification

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OECD FORD branch

10303 - Particles and field physics

Project

<a href="/en/project/LTT17020" target="_blank" >LTT17020: Study of Beyond Standard Model Physics with the International Experiment Belle II in Japan</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2018

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection

Journal of Physics: Conference Series [online]

ISBN

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ISSN

1742-6596

e-ISSN

neuvedeno

Number of pages

6

Pages from-to

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Publisher name

IOP Publishing

Place of publication

UK

Event location

Seattle, Spojené Státy Americké

Event date

Aug 21, 2017

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

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