Journal article

Search for Axionlike Particles Produced in e( )e(-) Collisions at Belle II

F Abudinen, I Adachi, H Aihara, N Akopov, A Aloisio, F Ameli, N Anh Ky, DM Asner, T Aushev, V Aushev, V Babu, S Baehr, S Bahinipati, P Bambade, Sw Banerjee, S Bansal, J Baudot, J Becker, PK Behera, J Bennett Show all

Physical Review Letters | American Physical Society | Published : 2020

Abstract

We present a search for the direct production of a light pseudoscalar a decaying into two photons with the Belle II detector at the SuperKEKB collider. We search for the process e+e−→γa, a→γγ in the mass range 0.2<ma<9.7 GeV/c2 using data corresponding to an integrated luminosity of (445±3)pb−1. Light pseudoscalars interacting predominantly with standard model gauge bosons (so-called axionlike particles or ALPs) are frequently postulated in extensions of the standard model. We find no evidence for ALPs and set 95% confidence level upper limits on the coupling strength gaγγof ALPs to photons at the level of 10−3GeV−1.The limits are the most restrictive to date for 0.2<ma<1GeV/c2.

Grants

Awarded by Science Committee of the Republic of Armenia


Awarded by Australian Research Council


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 SVV


Awarded by GAUK


Awarded by European Research Council, 7th Framework


Awarded by L'Institut National de Physique Nucl'the Czech Republic


Awarded by Deutsche Forschungsgemeinschaft (DFG) under Germany's Excellence


Awarded by Israel Science Foundation


Awarded by United States-Israel Binational Science Foundation


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 University of Tabuk research


Awarded by Slovenian Research Agency


Awarded by Agencia Estatal de Investigacion, Spain


Awarded by Ministry of Science and Technology


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

We thank the SuperKEKB group for the excellent operation of the accelerator; the KEK cryogenics group for the efficient operation of the solenoid; and the KEK computer group for on-site computing support. 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 Grants No. DP180102629, No. DP170102389, No. DP170102204, No. DP150103061, No. FT130100303, and No. 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 Grants No. 11521505, No. 11575017, No. 11675166, No. 11761141009, No. 11705209, and No. 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 No. SVV 260448 and No. GAUK 404316; European Research Council, 7th Framework PIEF-GA-2013622527, Horizon 2020 Marie Sklodowska-Curie Grant Agreement No. 700525 "NIOBE," and Horizon 2020 Marie Sklodowska-Curie RISE project JENNIFER2 Grant Agreement No. 822070 (European grants); L'Institut National de Physique Nucl ' eaire et de Physique des Particules (IN2P3) du CNRS (France); BMBF, DFG, HGF, MPG, AvH Foundation, and Deutsche Forschungsgemeinschaft (DFG) under Germany's Excellence Strategy-EXC2121 "Quantum Universe"Grant No. 390833306 (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 Grants No. 16H03968, No. 16H03993, No. 16H06492, No. 16K05323, No. 17H01133, No. 17H05405, No. 18K03621, No. 18H03710, No. 18H05226, No. 19H00682, No. 26220706, and No. 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 Grants No. 2016R1D1A1B01010135, No. 2016R1D1A1B02012900, No. 2018R1A2B3003643, No. 2018R1A6A1A06024970, No. 2018R1D1A1B07047294, No. 2019K1A3A7A09033840, and No. 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 No. FOINS-296, No. CB221329, No. CB-236394, No. CB-254409, and No. CB180023, and SEP-CINVESTAV research Grant No. 237 (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 No. 14.W03.31.0026; University of Tabuk research Grants No. S-1440-0321, No. S-0256-1438, and No.S-0280-1439 (Saudi Arabia); Slovenian Research Agency and research Grants No. J1-9124 and No. P10135; Agencia Estatal de Investigacion, Spain Grant No. FPA2014-55613-P and No. FPA2017-84445-P, and Grant No. CIDEGENT/2018/020 of Generalitat Valenciana; Ministry of Science and Technology and research Grants No. MOST106-2112-M-002-005-MY3 and No. MOST107-2119-M-002-035-MY3, and the Ministry of Education (Taiwan); Thailand Center of Excellence in Physics; TUBITAK ULAKBIM (Turkey); Ministry of Education and Science of Ukraine; the US National Science Foundation and research Grants No. PHY-1807007 and No. PHY-1913789, and the US Department of Energy and research Grants No. DE-AC0676RLO1830, No. DE-SC0007983, No. DE-SC0009824, No. DE-SC0009973, No. DE-SC0010073, No. DESC0010118, No. DE-SC0010504, No. DE-SC0011784, and No. DE-SC0012704; and the National Foundation for Science and Technology Development (NAFOSTED) of Vietnam under Contract No. 103.99-2018.45.