Belle-II high level trigger at SuperKEKB

S. Lee; R. Itoh; T. Higuchi; M. Nakao; S. Y. Suzuki; E. Won

doi:10.1088/1742-6596/396/1/012029

Belle-II high level trigger at SuperKEKB

S. Lee, R. Itoh, T. Higuchi, M. Nakao, S. Y. Suzuki, E. Won

Research output: Contribution to journal › Conference article › peer-review

Abstract

A next generation B-factory experiment, Belle II, is now being constructed at KEK in Japan. The upgraded accelerator SuperKEKB is designed to have the maximum luminosity of 8 × 10³⁵ cm^-2s^-1 that is a factor 40 higher than the current world record. As a consequence, the Belle II detector yields a data stream of the event size ∼1 MB at a Level 1 rate of 30 kHz. The Belle II High Level Trigger (HLT) is designed to reduce the Level 1 rate to 1/5 by performing the real time full event reconstruction and by applying the physics level event selection as the software trigger. In this paper, the development of the high level trigger system for Belle II and its performance is discussed.

Original language	English
Article number	012029
Journal	Journal of Physics: Conference Series
Volume	396
Issue number	PART 1
DOIs	https://doi.org/10.1088/1742-6596/396/1/012029
Publication status	Published - 2012
Event	International Conference on Computing in High Energy and Nuclear Physics 2012, CHEP 2012 - New York, NY, United States Duration: 2012 May 21 → 2012 May 25

ASJC Scopus subject areas

General Physics and Astronomy

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10.1088/1742-6596/396/1/012029

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title = "Belle-II high level trigger at SuperKEKB",

abstract = "A next generation B-factory experiment, Belle II, is now being constructed at KEK in Japan. The upgraded accelerator SuperKEKB is designed to have the maximum luminosity of 8 × 1035 cm-2s-1 that is a factor 40 higher than the current world record. As a consequence, the Belle II detector yields a data stream of the event size ∼1 MB at a Level 1 rate of 30 kHz. The Belle II High Level Trigger (HLT) is designed to reduce the Level 1 rate to 1/5 by performing the real time full event reconstruction and by applying the physics level event selection as the software trigger. In this paper, the development of the high level trigger system for Belle II and its performance is discussed.",

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T1 - Belle-II high level trigger at SuperKEKB

AU - Lee, S.

AU - Itoh, R.

AU - Higuchi, T.

AU - Nakao, M.

AU - Suzuki, S. Y.

AU - Won, E.

PY - 2012

Y1 - 2012

N2 - A next generation B-factory experiment, Belle II, is now being constructed at KEK in Japan. The upgraded accelerator SuperKEKB is designed to have the maximum luminosity of 8 × 1035 cm-2s-1 that is a factor 40 higher than the current world record. As a consequence, the Belle II detector yields a data stream of the event size ∼1 MB at a Level 1 rate of 30 kHz. The Belle II High Level Trigger (HLT) is designed to reduce the Level 1 rate to 1/5 by performing the real time full event reconstruction and by applying the physics level event selection as the software trigger. In this paper, the development of the high level trigger system for Belle II and its performance is discussed.

AB - A next generation B-factory experiment, Belle II, is now being constructed at KEK in Japan. The upgraded accelerator SuperKEKB is designed to have the maximum luminosity of 8 × 1035 cm-2s-1 that is a factor 40 higher than the current world record. As a consequence, the Belle II detector yields a data stream of the event size ∼1 MB at a Level 1 rate of 30 kHz. The Belle II High Level Trigger (HLT) is designed to reduce the Level 1 rate to 1/5 by performing the real time full event reconstruction and by applying the physics level event selection as the software trigger. In this paper, the development of the high level trigger system for Belle II and its performance is discussed.

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DO - 10.1088/1742-6596/396/1/012029

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AN - SCOPUS:84873294607

SN - 1742-6588

VL - 396

JO - Journal of Physics: Conference Series

JF - Journal of Physics: Conference Series

IS - PART 1

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T2 - International Conference on Computing in High Energy and Nuclear Physics 2012, CHEP 2012

Y2 - 21 May 2012 through 25 May 2012

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Belle-II high level trigger at SuperKEKB

Abstract

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