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Title: Measurement of the integrated luminosity of the Phase 2 data of the Belle II experiment

Journal Article · · Chinese Physics. C, High Energy Physics and Nuclear Physics
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From April to July 2018, a data sample at the peak energy of the Υ(4S) resonance was collected with the Belle II detector at the SuperKEKB electron-positron collider. This is the first data sample of the Belle II experiment. Using Bhabha and digamma events, we measure the integrated luminosity of the data sample to be (496.3±0.3±3.0) pb-1), where the first uncertainty is statistical and the second is systematic. This work provides a basis for future luminosity measurements at Belle II.

Research Organization:
Pacific Northwest National Laboratory (PNNL), Richland, WA (United States); Univ. of Hawaii, Honolulu, HI (United States); Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Organization:
USDOE Office of Science (SC), High Energy Physics (HEP)
Contributing Organization:
BELLE II collaboration
Grant/Contract Number:
AC05-76RL01830; SC0010504; SC0012704
OSTI ID:
1635544
Alternate ID(s):
OSTI ID: 1581505; OSTI ID: 1779501
Report Number(s):
BNL-212490-2019-JAAM; TRN: US2201584
Journal Information:
Chinese Physics. C, High Energy Physics and Nuclear Physics, Vol. 44, Issue 2; ISSN 1674-1137
Publisher:
IOP PublishingCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 16 works
Citation information provided by
Web of Science

References (40)

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Time-integrated luminosity recorded by the BABARdetector at the PEP-II<mml:math altimg="si0120.gif" overflow="scroll" xmlns:xocs="http://www.elsevier.com/xml/xocs/dtd" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://www.elsevier.com/xml/ja/dtd" xmlns:ja="http://www.elsevier.com/xml/ja/dtd" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:tb="http://www.elsevier.com/xml/common/table/dtd" xmlns:sb="http://www.elsevier.com/xml/common/struct-bib/dtd" xmlns:ce="http://www.elsevier.com/xml/common/dtd" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:cals="http://www.elsevier.com/xml/common/cals/dtd" xmlns:sa="http://www.elsevier.com/xml/common/struct-aff/dtd"><mml:msup><mml:mrow><mml:mi mathvariant="normal">e</mml:mi></mml:mrow><mml:mrow><mml:mo>+</mml:mo></mml:mrow></mml:msup><mml:msup><mml:mrow><mml:mi mathvariant="normal">e</mml:mi></mml:mrow><mml:mrow><mml:mo>-</mml:mo></mml:mrow></mml:msup></mml:math> collider
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Figures / Tables (4)

Table 1(p. 8)table Table 1
ee", "γγ ", "Bkg", and "Tot" denote the Bhabha, digamma, background ( μ+μ-, e+e-e+e-, B+B-, B0$$\bar{B}^0$$, $$c\bar{c}$$, $$s\bar{s}$$, $$u\bar{u}$$, $$d\bar{d}$$ and τ+τ-), and total MC samples, respectively. The vertical arrows indicate the regions of the selected events." data-ostiid="1635544">
Fig. 1(p. 9)figure Fig. 1
ee", "γγ ", "Bkg", and "Tot" denote the Bhabha, digamma, background ( μ+μ-, e+e-e+e-, B+B-, B0$$\bar{B}^0$$, $$c\bar{c}$$, $$s\bar{s}$$, $$u\bar{u}$$, $$d\bar{d}$$ and τ+τ-), and total MC samples, respectively. The vertical arrows indicate the regions of the selected events." data-ostiid="1635544">
Fig. 2(p. 10)figure Fig. 2
Table 2(p. 11)table Table 2

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Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
luminosity
Bahabha
digamma
Belle II