Journal article

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

F Abudinen, I Adachi, P Ahlburg, H Aihara, N Akopov, A Aloisio, F Ameli, L Andricek, N Anh Ky, DM Asner, H Atmacan, T Aushev, V Aushev, T Aziz, K Azmi, V Babu, S Baehr, S Bahinipati, AM Bakich, P Bambade Show all

CHINESE PHYSICS C | IOP PUBLISHING LTD | Published : 2020

Abstract

From April to July 2018, a data sample at the peak energy of the γ(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.

Grants

Awarded by Science Committee of the Republic of Armenia


Awarded by Australian Research Council


Awarded by Austrian Federal Ministry of Education, Science and Research


Awarded by Austrian Science Fund


Awarded by Chinese Academy of Sciences


Awarded by National Natural Science Foundation of China


Awarded by LiaoNing Revitalization Talents Program


Awarded by Shanghai Municipal Science and Technology Committee


Awarded by Shanghai Pujiang Program


Awarded by Ministry of Education, Youth and Sports of the Czech Republic


Awarded by Charles University grants


Awarded by European Research Council


Awarded by Israel Science Foundation


Awarded by United States-Israel Binational Science Foundation


Awarded by Istituto Nazionale di Fisica Nucleare


Awarded by Japan Society for the Promotion of Science


Awarded by National Research Foundation (NRF) of Korea


Awarded by Frontiers of Science Program


Awarded by Ministry of Science and Higher Education of the Russian Federation


Awarded by Slovenian Research Agency


Awarded by Agencia Estatal de Investigacion, Spain


Awarded by Generalitat Valenciana


Awarded by Ministry of Science and Technology (Taiwan)


Awarded by US National Science Foundation


Awarded by US Department of Energy


Awarded by National Foundation for Science and Technology Development (NAFOSTED) of Vietnam


Funding Acknowledgements

This work was supported by the following funding sources: Science Committee of the Republic of Armenia Grant No. 18T-1C180; Australian Research Council and research grant Nos. DP180102629, DP170102389, DP170102204, DP150103061, FT130100303, and FT130100018; Austrian Federal Ministry of Education, Science and Research, and Austrian Science Fund No. P 31361-N36; Natural Sciences and Engineering Research Council of Canada, Compute Canada and CANARIE; Chinese Academy of Sciences and research grant No. QYZDJ-SSW-SLH011, National Natural Science Foundation of China and research grant Nos. 11521505, 11575017, 11675166, 11761141009, 11705209, and 11975076, LiaoNing Revitalization Talents Program under contract No. XLYC1807135, Shanghai Municipal Science and Technology Committee under contract No. 19ZR1403000, Shanghai Pujiang Program under Grant No. 18PJ1401000, and the CAS Center for Excellence in Particle Physics (CCEPP); the Ministry of Education, Youth and Sports of the Czech Republic under Contract No. LTT17020 and Charles University grants SVV 260448 and GAUK 404316; European Research Council, 7th Framework PIEF-GA-2013-622527, Horizon 2020 Marie Sklodowska-Curie grant agreement No. 700525 'NIOBE,' Horizon 2020 Marie Sklodowska-Curie RISE project JENNIFER grant agreement No. 644294, Horizon 2020 ERC-Advanced Grant No. 267104, and NewAve No. 638528 (European grants); L'Institut National de Physique Nucleaire et de Physique des Particules (IN2P3) du CNRS (France); BMBF, DFG, HGF, MPG and AvH Foundation (Germany); Department of Atomic Energy and Department of Science and Technology (India); Israel Science Foundation grant No. 2476/17 and United States-Israel Binational Science Foundation grant No. 2016113; Istituto Nazionale di Fisica Nucleare and the research grants BELLE2; Japan Society for the Promotion of Science, Grant-in-Aid for Scientific Research grant Nos. 16H03968, 16H03993, 16H06492, 16K05323, 17H01133, 17H05405, 18K03621, 18H03710, 18H05226, 19H00682, 26220706, and 26400255, the National Institute of Informatics, and Science Information NETwork 5 (SINET5), and the Ministry of Education, Culture, Sports, Science, and Technology (MEXT) of Japan; National Research Foundation (NRF) of Korea Grant Nos. 2016R1D1A1B01010135, 2016R1D1A1B02012900, 2018R1A2B3003643, 2018R1A6A1A06024970, 2018R1D1A1B07047294, 2019K1A3A7A09033840, and 2019R1I1A3A01058933, Radiation Science Research Institute, Foreign Large-size Research Facility Application Supporting project, the Global Science Experimental Data Hub Center of the Korea Institute of Science and Technology Information and KREONET/GLORIAD; Universiti Malaya RU grant, Akademi Sains Malaysia and Ministry of Education Malaysia; Frontiers of Science Program contracts FOINS-296, CB-221329, CB-236394, CB-254409, and CB-180023, and the Thematic Networks program (Mexico); the Polish Ministry of Science and Higher Education and the National Science Center; the Ministry of Science and Higher Education of the Russian Federation, Agreement 14.W03.31.0026; Slovenian Research Agency and research grant Nos. J1-9124 and P1-0135; Agencia Estatal de Investigacion, Spain grant Nos. FPA2014-55613-P and FPA2017-84445-P, and CIDEGENT/2018/020 of Generalitat Valenciana; Ministry of Science and Technology and research grant Nos. MOST106-2112-M-002-005MY3 and MOST107-2119-M-002-035-MY3, and the Ministry of Education (Taiwan); Thailand Center of Excellence in Physics; TUBITAK ULAKBIM (Turkey); Min-istry of Education and Science of Ukraine; the US National Science Foundation and research grant Nos.r PHY-1807007 and PHY-1913789, and the US Department of Energy and research grant Nos. DE-AC06-76RLO1830, DE-SC0007983, DE-SC0009824, DE-SC0009973, DE-SC0010073, DE-SC0010118, DE-SC0010504, DE-SC0011784, DE-SC0012704; and the National Foundation for Science and Technology Development (NAFOSTED) of Vietnam under grant No 103.99-2018.45