Search for a Light Higgs Boson in Single-Photon Decays of ϒ (1S) Using ϒ (2S) →π+π- ϒ (1S) Tagging Method

S. Jia; C. P. Shen; I. Adachi; H. Aihara; S. Al Said; D. M. Asner; H. Atmacan; T. Aushev; R. Ayad; V. Babu; P. Behera; K. Belous; J. Bennett; M. Bessner; V. Bhardwaj; B. Bhuyan; T. Bilka; A. Bobrov; D. Bodrov; G. Bonvicini; J. Borah; M. Bračko; P. Branchini; T. E. Browder; A. Budano; M. Campajola; D. Červenkov; M. C. Chang; P. Chang; V. Chekelian; A. Chen; B. G. Cheon; K. Chilikin; H. E. Cho; K. Cho; S. J. Cho; S. K. Choi; Y. Choi; S. Choudhury; D. Cinabro; S. Cunliffe; S. Das; N. Dash; G. De Nardo; G. De Pietro; R. Dhamija; F. Di Capua; Z. DoleŽal; T. V. Dong; D. Epifanov; T. Ferber; D. Ferlewicz; B. G. Fulsom; R. Garg; V. Gaur; N. Gabyshev; A. Giri; P. Goldenzweig; B. Golob; E. Graziani; Y. Guan; K. Gudkova; C. Hadjivasiliou; T. Hara; K. Hayasaka; H. Hayashii; M. T. Hedges; W. S. Hou; K. Inami; G. Inguglia; A. Ishikawa; R. Itoh; M. Iwasaki; Y. Iwasaki; W. W. Jacobs; E. J. Jang; Y. Jin; K. K. Joo; J. Kahn; A. B. Kaliyar; K. H. Kang; T. Kawasaki; C. Kiesling; C. H. Kim; D. Y. Kim; K. H. Kim; Y. K. Kim; K. Kinoshita; P. Kodyš; S. Kohani; T. Konno; A. Korobov; S. Korpar; E. Kovalenko; P. KriŽan; R. Kroeger; P. Krokovny; M. Kumar; R. Kumar; K. Kumara; Y. J. Kwon; T. Lam; M. Laurenza; S. C. Lee; J. Li; L. K. Li; Y. Li; Y. B. Li; L. Li Gioi; J. Libby; K. Lieret; D. Liventsev; A. Martini; M. Masuda; T. Matsuda; D. Matvienko; S. K. Maurya; F. Meier; M. Merola; F. Metzner; K. Miyabayashi; R. Mizuk; G. B. Mohanty; R. Mussa; M. Nakao; D. Narwal; Z. Natkaniec; A. Natochii; L. Nayak; N. K. Nisar; S. Nishida; K. Nishimura; K. Ogawa; S. Ogawa; H. Ono; P. Oskin; P. Pakhlov; G. Pakhlova; T. Pang; S. Pardi; S. H. Park; S. Patra; S. Paul; T. K. Pedlar; R. Pestotnik; L. E. Piilonen; T. Podobnik; E. Prencipe; M. T. Prim; M. Röhrken; A. Rostomyan; N. Rout; G. Russo; D. Sahoo; S. Sandilya; A. Sangal; L. Santelj; T. Sanuki; V. Savinov; G. Schnell; J. Schueler; C. Schwanda; Y. Seino; K. Senyo; M. E. Sevior; M. Shapkin; C. Sharma; V. Shebalin; J. G. Shiu; B. Shwartz; J. B. Singh; A. Sokolov; E. Solovieva; S. Stanič; M. Starič; Z. S. Stottler; M. Sumihama; K. Sumisawa; T. Sumiyoshi; W. Sutcliffe; M. Takizawa; U. Tamponi; K. Tanida; F. Tenchini; K. Trabelsi; M. Uchida; S. Uehara; T. Uglov; Y. Unno; K. Uno; S. Uno; P. Urquijo; S. E. Vahsen; R. Van Tonder; G. Varner; A. Vinokurova; E. Waheed; D. Wang; E. Wang; M. Z. Wang; S. Watanuki; E. Won; B. D. Yabsley; W. Yan; S. B. Yang; H. Ye; J. Yelton; J. H. Yin; Y. Yusa; Y. Zhai; Z. P. Zhang; V. Zhilich; V. Zhukova

doi:10.1103/PhysRevLett.128.081804

Search for a Light Higgs Boson in Single-Photon Decays of ϒ (1S) Using ϒ (2S) →π+π- ϒ (1S) Tagging Method

S. Jia, C. P. Shen, I. Adachi, H. Aihara, S. Al Said, D. M. Asner, H. Atmacan, T. Aushev, R. Ayad, V. Babu, P. Behera, K. Belous, J. Bennett, M. Bessner, V. Bhardwaj, B. Bhuyan, T. Bilka, A. Bobrov, D. Bodrov, G. BonviciniJ. Borah, M. Bračko, P. Branchini, T. E. Browder, A. Budano, M. Campajola, D. Červenkov, M. C. Chang, P. Chang, V. Chekelian, A. Chen, B. G. Cheon, K. Chilikin, H. E. Cho, K. Cho, S. J. Cho, S. K. Choi, Y. Choi, S. Choudhury, D. Cinabro, S. Cunliffe, S. Das, N. Dash, G. De Nardo, G. De Pietro, R. Dhamija, F. Di Capua, Z. DoleŽal, T. V. Dong, D. Epifanov, T. Ferber, D. Ferlewicz, B. G. Fulsom, R. Garg, V. Gaur, N. Gabyshev, A. Giri, P. Goldenzweig, B. Golob, E. Graziani, Y. Guan, K. Gudkova, C. Hadjivasiliou, T. Hara, K. Hayasaka, H. Hayashii, M. T. Hedges, W. S. Hou, K. Inami, G. Inguglia, A. Ishikawa, R. Itoh, M. Iwasaki, Y. Iwasaki, W. W. Jacobs, E. J. Jang, Y. Jin, K. K. Joo, J. Kahn, A. B. Kaliyar, K. H. Kang, T. Kawasaki, C. Kiesling, C. H. Kim, D. Y. Kim, K. H. Kim, Y. K. Kim, K. Kinoshita, P. Kodyš, S. Kohani, T. Konno, A. Korobov, S. Korpar, E. Kovalenko, P. KriŽan, R. Kroeger, P. Krokovny, M. Kumar, R. Kumar, K. Kumara, Y. J. Kwon, T. Lam, M. Laurenza, S. C. Lee, J. Li, L. K. Li, Y. Li, Y. B. Li, L. Li Gioi, J. Libby, K. Lieret, D. Liventsev, A. Martini, M. Masuda, T. Matsuda, D. Matvienko, S. K. Maurya, F. Meier, M. Merola, F. Metzner, K. Miyabayashi, R. Mizuk, G. B. Mohanty, R. Mussa, M. Nakao, D. Narwal, Z. Natkaniec, A. Natochii, L. Nayak, N. K. Nisar, S. Nishida, K. Nishimura, K. Ogawa, S. Ogawa, H. Ono, P. Oskin, P. Pakhlov, G. Pakhlova, T. Pang, S. Pardi, S. H. Park, S. Patra, S. Paul, T. K. Pedlar, R. Pestotnik, L. E. Piilonen, T. Podobnik, E. Prencipe, M. T. Prim, M. Röhrken, A. Rostomyan, N. Rout, G. Russo, D. Sahoo, S. Sandilya, A. Sangal, L. Santelj, T. Sanuki, V. Savinov, G. Schnell, J. Schueler, C. Schwanda, Y. Seino, K. Senyo, M. E. Sevior, M. Shapkin, C. Sharma, V. Shebalin, J. G. Shiu, B. Shwartz, J. B. Singh, A. Sokolov, E. Solovieva, S. Stanič, M. Starič, Z. S. Stottler, M. Sumihama, K. Sumisawa, T. Sumiyoshi, W. Sutcliffe, M. Takizawa, U. Tamponi, K. Tanida, F. Tenchini, K. Trabelsi, M. Uchida, S. Uehara, T. Uglov, Y. Unno, K. Uno, S. Uno, P. Urquijo, S. E. Vahsen, R. Van Tonder, G. Varner, A. Vinokurova, E. Waheed, D. Wang, E. Wang, M. Z. Wang, S. Watanuki, E. Won, B. D. Yabsley, W. Yan, S. B. Yang, H. Ye, J. Yelton, J. H. Yin, Y. Yusa, Y. Zhai, Z. P. Zhang, V. Zhilich, V. Zhukova

SCI - Physics

Research output: Contribution to journal › Article › peer-review

1 Citation (Scopus)

Abstract

We search for a light Higgs boson (A0) decaying into a τ+τ- or μ+μ- pair in the radiative decays of ϒ(1S). The production of ϒ(1S) mesons is tagged by ϒ(2S)→π+π-ϒ(1S) transitions, using 158×106 ϒ(2S) events accumulated with the Belle detector at the KEKB asymmetric energy electron-positron collider. No significant A0 signals in the mass range from the τ+τ- or μ+μ- threshold to 9.2 GeV/c2 are observed. We set the upper limits at 90% credibility level (C.L.) on the product branching fractions for ϒ(1S)→γA0 and A0→τ+τ- varying from 3.8×10-6 to 1.5×10-4. Our results represent an approximately twofold improvement on the current world best upper limits for the ϒ(1S)→γA0(→τ+τ-) production. For A0→μ+μ-, the upper limits on the product branching fractions for ϒ(1S)→γA0 and A0→μ+μ- are at the same level as the world average limits, and vary from 3.1×10-7 to 1.6×10-5. The upper limits at 90% credibility level on the Yukawa coupling fϒ(1S) and mixing angle sinθA0 are also given.

Original language	English
Article number	081804
Journal	Physical review letters
Volume	128
Issue number	8
DOIs	https://doi.org/10.1103/PhysRevLett.128.081804
Publication status	Published - 2022 Feb 25

ASJC Scopus subject areas

Physics and Astronomy(all)

Access to Document

10.1103/PhysRevLett.128.081804

Cite this

Jia, S., Shen, C. P., Adachi, I., Aihara, H., Al Said, S., Asner, D. M., Atmacan, H., Aushev, T., Ayad, R., Babu, V., Behera, P., Belous, K., Bennett, J., Bessner, M., Bhardwaj, V., Bhuyan, B., Bilka, T., Bobrov, A., Bodrov, D., ... Zhukova, V. (2022). Search for a Light Higgs Boson in Single-Photon Decays of ϒ (1S) Using ϒ (2S) →π+π- ϒ (1S) Tagging Method. Physical review letters, 128(8), [081804]. https://doi.org/10.1103/PhysRevLett.128.081804

Jia, S, Shen, CP, Adachi, I, Aihara, H, Al Said, S, Asner, DM, Atmacan, H, Aushev, T, Ayad, R, Babu, V, Behera, P, Belous, K, Bennett, J, Bessner, M, Bhardwaj, V, Bhuyan, B, Bilka, T, Bobrov, A, Bodrov, D, Bonvicini, G, Borah, J, Bračko, M, Branchini, P, Browder, TE, Budano, A, Campajola, M, Červenkov, D, Chang, MC, Chang, P, Chekelian, V, Chen, A, Cheon, BG, Chilikin, K, Cho, HE, Cho, K, Cho, SJ, Choi, SK, Choi, Y, Choudhury, S, Cinabro, D, Cunliffe, S, Das, S, Dash, N, De Nardo, G, De Pietro, G, Dhamija, R, Di Capua, F, DoleŽal, Z, Dong, TV, Epifanov, D, Ferber, T, Ferlewicz, D, Fulsom, BG, Garg, R, Gaur, V, Gabyshev, N, Giri, A, Goldenzweig, P, Golob, B, Graziani, E, Guan, Y, Gudkova, K, Hadjivasiliou, C, Hara, T, Hayasaka, K, Hayashii, H, Hedges, MT, Hou, WS, Inami, K, Inguglia, G, Ishikawa, A, Itoh, R, Iwasaki, M, Iwasaki, Y, Jacobs, WW, Jang, EJ, Jin, Y, Joo, KK, Kahn, J, Kaliyar, AB, Kang, KH, Kawasaki, T, Kiesling, C, Kim, CH, Kim, DY, Kim, KH, Kim, YK, Kinoshita, K, Kodyš, P, Kohani, S, Konno, T, Korobov, A, Korpar, S, Kovalenko, E, KriŽan, P, Kroeger, R, Krokovny, P, Kumar, M, Kumar, R, Kumara, K, Kwon, YJ, Lam, T, Laurenza, M, Lee, SC, Li, J, Li, LK, Li, Y, Li, YB, Li Gioi, L, Libby, J, Lieret, K, Liventsev, D, Martini, A, Masuda, M, Matsuda, T, Matvienko, D, Maurya, SK, Meier, F, Merola, M, Metzner, F, Miyabayashi, K, Mizuk, R, Mohanty, GB, Mussa, R, Nakao, M, Narwal, D, Natkaniec, Z, Natochii, A, Nayak, L, Nisar, NK, Nishida, S, Nishimura, K, Ogawa, K, Ogawa, S, Ono, H, Oskin, P, Pakhlov, P, Pakhlova, G, Pang, T, Pardi, S, Park, SH, Patra, S, Paul, S, Pedlar, TK, Pestotnik, R, Piilonen, LE, Podobnik, T, Prencipe, E, Prim, MT, Röhrken, M, Rostomyan, A, Rout, N, Russo, G, Sahoo, D, Sandilya, S, Sangal, A, Santelj, L, Sanuki, T, Savinov, V, Schnell, G, Schueler, J, Schwanda, C, Seino, Y, Senyo, K, Sevior, ME, Shapkin, M, Sharma, C, Shebalin, V, Shiu, JG, Shwartz, B, Singh, JB, Sokolov, A, Solovieva, E, Stanič, S, Starič, M, Stottler, ZS, Sumihama, M, Sumisawa, K, Sumiyoshi, T, Sutcliffe, W, Takizawa, M, Tamponi, U, Tanida, K, Tenchini, F, Trabelsi, K, Uchida, M, Uehara, S, Uglov, T, Unno, Y, Uno, K, Uno, S, Urquijo, P, Vahsen, SE, Van Tonder, R, Varner, G, Vinokurova, A, Waheed, E, Wang, D, Wang, E, Wang, MZ, Watanuki, S, Won, E, Yabsley, BD, Yan, W, Yang, SB, Ye, H, Yelton, J, Yin, JH, Yusa, Y, Zhai, Y, Zhang, ZP, Zhilich, V & Zhukova, V 2022, 'Search for a Light Higgs Boson in Single-Photon Decays of ϒ (1S) Using ϒ (2S) →π+π- ϒ (1S) Tagging Method', Physical review letters, vol. 128, no. 8, 081804. https://doi.org/10.1103/PhysRevLett.128.081804

@article{5b7faebb74964cd7bab98c7911c0d4cb,

title = "Search for a Light Higgs Boson in Single-Photon Decays of ϒ (1S) Using ϒ (2S) →π+π- ϒ (1S) Tagging Method",

abstract = "We search for a light Higgs boson (A0) decaying into a τ+τ- or μ+μ- pair in the radiative decays of ϒ(1S). The production of ϒ(1S) mesons is tagged by ϒ(2S)→π+π-ϒ(1S) transitions, using 158×106 ϒ(2S) events accumulated with the Belle detector at the KEKB asymmetric energy electron-positron collider. No significant A0 signals in the mass range from the τ+τ- or μ+μ- threshold to 9.2 GeV/c2 are observed. We set the upper limits at 90% credibility level (C.L.) on the product branching fractions for ϒ(1S)→γA0 and A0→τ+τ- varying from 3.8×10-6 to 1.5×10-4. Our results represent an approximately twofold improvement on the current world best upper limits for the ϒ(1S)→γA0(→τ+τ-) production. For A0→μ+μ-, the upper limits on the product branching fractions for ϒ(1S)→γA0 and A0→μ+μ- are at the same level as the world average limits, and vary from 3.1×10-7 to 1.6×10-5. The upper limits at 90% credibility level on the Yukawa coupling fϒ(1S) and mixing angle sinθA0 are also given.",

author = "S. Jia and Shen, {C. P.} and I. Adachi and H. Aihara and {Al Said}, S. and Asner, {D. M.} and H. Atmacan and T. Aushev and R. Ayad and V. Babu and P. Behera and K. Belous and J. Bennett and M. Bessner and V. Bhardwaj and B. Bhuyan and T. Bilka and A. Bobrov and D. Bodrov and G. Bonvicini and J. Borah and M. Bra{\v c}ko and P. Branchini and Browder, {T. E.} and A. Budano and M. Campajola and D. {\v C}ervenkov and Chang, {M. C.} and P. Chang and V. Chekelian and A. Chen and Cheon, {B. G.} and K. Chilikin and Cho, {H. E.} and K. Cho and Cho, {S. J.} and Choi, {S. K.} and Y. Choi and S. Choudhury and D. Cinabro and S. Cunliffe and S. Das and N. Dash and {De Nardo}, G. and {De Pietro}, G. and R. Dhamija and {Di Capua}, F. and Z. Dole{\v Z}al and Dong, {T. V.} and D. Epifanov and T. Ferber and D. Ferlewicz and Fulsom, {B. G.} and R. Garg and V. Gaur and N. Gabyshev and A. Giri and P. Goldenzweig and B. Golob and E. Graziani and Y. Guan and K. Gudkova and C. Hadjivasiliou and T. Hara and K. Hayasaka and H. Hayashii and Hedges, {M. T.} and Hou, {W. S.} and K. Inami and G. Inguglia and A. Ishikawa and R. Itoh and M. Iwasaki and Y. Iwasaki and Jacobs, {W. W.} and Jang, {E. J.} and Y. Jin and Joo, {K. K.} and J. Kahn and Kaliyar, {A. B.} and Kang, {K. H.} and T. Kawasaki and C. Kiesling and Kim, {C. H.} and Kim, {D. Y.} and Kim, {K. H.} and Kim, {Y. K.} and K. Kinoshita and P. Kody{\v s} and S. Kohani and T. Konno and A. Korobov and S. Korpar and E. Kovalenko and P. Kri{\v Z}an and R. Kroeger and P. Krokovny and M. Kumar and R. Kumar and K. Kumara and Kwon, {Y. J.} and T. Lam and M. Laurenza and Lee, {S. C.} and J. Li and Li, {L. K.} and Y. Li and Li, {Y. B.} and {Li Gioi}, L. and J. Libby and K. Lieret and D. Liventsev and A. Martini and M. Masuda and T. Matsuda and D. Matvienko and Maurya, {S. K.} and F. Meier and M. Merola and F. Metzner and K. Miyabayashi and R. Mizuk and Mohanty, {G. B.} and R. Mussa and M. Nakao and D. Narwal and Z. Natkaniec and A. Natochii and L. Nayak and Nisar, {N. K.} and S. Nishida and K. Nishimura and K. Ogawa and S. Ogawa and H. Ono and P. Oskin and P. Pakhlov and G. Pakhlova and T. Pang and S. Pardi and Park, {S. H.} and S. Patra and S. Paul and Pedlar, {T. K.} and R. Pestotnik and Piilonen, {L. E.} and T. Podobnik and E. Prencipe and Prim, {M. T.} and M. R{\"o}hrken and A. Rostomyan and N. Rout and G. Russo and D. Sahoo and S. Sandilya and A. Sangal and L. Santelj and T. Sanuki and V. Savinov and G. Schnell and J. Schueler and C. Schwanda and Y. Seino and K. Senyo and Sevior, {M. E.} and M. Shapkin and C. Sharma and V. Shebalin and Shiu, {J. G.} and B. Shwartz and Singh, {J. B.} and A. Sokolov and E. Solovieva and S. Stani{\v c} and M. Stari{\v c} and Stottler, {Z. S.} and M. Sumihama and K. Sumisawa and T. Sumiyoshi and W. Sutcliffe and M. Takizawa and U. Tamponi and K. Tanida and F. Tenchini and K. Trabelsi and M. Uchida and S. Uehara and T. Uglov and Y. Unno and K. Uno and S. Uno and P. Urquijo and Vahsen, {S. E.} and {Van Tonder}, R. and G. Varner and A. Vinokurova and E. Waheed and D. Wang and E. Wang and Wang, {M. Z.} and S. Watanuki and E. Won and Yabsley, {B. D.} and W. Yan and Yang, {S. B.} and H. Ye and J. Yelton and Yin, {J. H.} and Y. Yusa and Y. Zhai and Zhang, {Z. P.} and V. Zhilich and V. Zhukova",

note = "Funding Information: We thank the KEKB group for the excellent operation of the accelerator; the KEK cryogenics group for the efficient operation of the solenoid; and the KEK computer group, and the Pacific Northwest National Laboratory (PNNL) Environmental Molecular Sciences Laboratory (EMSL) computing group for strong computing support; and the National Institute of Informatics, and Science Information NETwork 5 (SINET5) for valuable network support. We acknowledge support from the Ministry of Education, Culture, Sports, Science, and Technology (MEXT) of Japan, the Japan Society for the Promotion of Science (JSPS), and the Tau-Lepton Physics Research Center of Nagoya University; the Australian Research Council including Grants No. DP180102629, No. DP170102389, No. DP170102204, No. DP150103061, No. FT130100303; Austrian Federal Ministry of Education, Science and Research (FWF) and FWF Austrian Science Fund No. P~31361-N36; the National Natural Science Foundation of China under Contracts No. 12005040, No. 11675166, No. 11705209; No. 11975076; No. 12135005; No. 12175041; No. 12161141008; Key Research Program of Frontier Sciences, Chinese Academy of Sciences (CAS), Grant No. QYZDJ-SSW-SLH011; the Shanghai Science and Technology Committee (STCSM) under Grant No. 19ZR1403000; the Ministry of Education, Youth and Sports of the Czech Republic under Contract No. LTT17020; Horizon 2020 ERC Advanced Grant No. 884719 and ERC Starting Grant No. 947006 “InterLeptons” (European Union); the Carl Zeiss Foundation, the Deutsche Forschungsgemeinschaft, the Excellence Cluster Universe, and the VolkswagenStiftung; the Department of Atomic Energy (Project Identification No. RTI 4002) and the Department of Science and Technology of India; the Istituto Nazionale di Fisica Nucleare of Italy; National Research Foundation (NRF) of Korea Grants No. 2016R1\-D1A1B\-01010135, No. 2016R1\-D1A1B\-02012900, No. 2018R1\-A2B\-3003643, No. 2018R1\-A6A1A\-06024970, No. 2019K1\-A3A7A\-09033840, No. 2019R1\-I1A3A\-01058933, No. 2021R1\-A6A1A\-03043957, No. 2021R1\-F1A\-1060423, No. 2021R1\-F1A\-1064008; 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; 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, and the HSE University Basic Research Program, Moscow; University of Tabuk research grants S-1440-0321, S-0256-1438, and S-0280-1439 (Saudi Arabia); the Slovenian Research Agency Grants No. J1-9124 and No. P1-0135; Ikerbasque, Basque Foundation for Science, Spain; the Swiss National Science Foundation; the Ministry of Education and the Ministry of Science and Technology of Taiwan; and the United States Department of Energy and the National Science Foundation. Publisher Copyright: {\textcopyright} 2022 authors. Published by the American Physical Society.",

year = "2022",

month = feb,

day = "25",

doi = "10.1103/PhysRevLett.128.081804",

language = "English",

volume = "128",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "8",

}

TY - JOUR

T1 - Search for a Light Higgs Boson in Single-Photon Decays of ϒ (1S) Using ϒ (2S) →π+π- ϒ (1S) Tagging Method

AU - Jia, S.

AU - Shen, C. P.

AU - Adachi, I.

AU - Aihara, H.

AU - Al Said, S.

AU - Asner, D. M.

AU - Atmacan, H.

AU - Aushev, T.

AU - Ayad, R.

AU - Babu, V.

AU - Behera, P.

AU - Belous, K.

AU - Bennett, J.

AU - Bessner, M.

AU - Bhardwaj, V.

AU - Bhuyan, B.

AU - Bilka, T.

AU - Bobrov, A.

AU - Bodrov, D.

AU - Bonvicini, G.

AU - Borah, J.

AU - Bračko, M.

AU - Branchini, P.

AU - Browder, T. E.

AU - Budano, A.

AU - Campajola, M.

AU - Červenkov, D.

AU - Chang, M. C.

AU - Chang, P.

AU - Chekelian, V.

AU - Chen, A.

AU - Cheon, B. G.

AU - Chilikin, K.

AU - Cho, H. E.

AU - Cho, K.

AU - Cho, S. J.

AU - Choi, S. K.

AU - Choi, Y.

AU - Choudhury, S.

AU - Cinabro, D.

AU - Cunliffe, S.

AU - Das, S.

AU - Dash, N.

AU - De Nardo, G.

AU - De Pietro, G.

AU - Dhamija, R.

AU - Di Capua, F.

AU - DoleŽal, Z.

AU - Dong, T. V.

AU - Epifanov, D.

AU - Ferber, T.

AU - Ferlewicz, D.

AU - Fulsom, B. G.

AU - Garg, R.

AU - Gaur, V.

AU - Gabyshev, N.

AU - Giri, A.

AU - Goldenzweig, P.

AU - Golob, B.

AU - Graziani, E.

AU - Guan, Y.

AU - Gudkova, K.

AU - Hadjivasiliou, C.

AU - Hara, T.

AU - Hayasaka, K.

AU - Hayashii, H.

AU - Hedges, M. T.

AU - Hou, W. S.

AU - Inami, K.

AU - Inguglia, G.

AU - Ishikawa, A.

AU - Itoh, R.

AU - Iwasaki, M.

AU - Iwasaki, Y.

AU - Jacobs, W. W.

AU - Jang, E. J.

AU - Jin, Y.

AU - Joo, K. K.

AU - Kahn, J.

AU - Kaliyar, A. B.

AU - Kang, K. H.

AU - Kawasaki, T.

AU - Kiesling, C.

AU - Kim, C. H.

AU - Kim, D. Y.

AU - Kim, K. H.

AU - Kim, Y. K.

AU - Kinoshita, K.

AU - Kodyš, P.

AU - Kohani, S.

AU - Konno, T.

AU - Korobov, A.

AU - Korpar, S.

AU - Kovalenko, E.

AU - KriŽan, P.

AU - Kroeger, R.

AU - Krokovny, P.

AU - Kumar, M.

AU - Kumar, R.

AU - Kumara, K.

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N1 - Funding Information: We thank the KEKB group for the excellent operation of the accelerator; the KEK cryogenics group for the efficient operation of the solenoid; and the KEK computer group, and the Pacific Northwest National Laboratory (PNNL) Environmental Molecular Sciences Laboratory (EMSL) computing group for strong computing support; and the National Institute of Informatics, and Science Information NETwork 5 (SINET5) for valuable network support. We acknowledge support from the Ministry of Education, Culture, Sports, Science, and Technology (MEXT) of Japan, the Japan Society for the Promotion of Science (JSPS), and the Tau-Lepton Physics Research Center of Nagoya University; the Australian Research Council including Grants No. DP180102629, No. DP170102389, No. DP170102204, No. DP150103061, No. FT130100303; Austrian Federal Ministry of Education, Science and Research (FWF) and FWF Austrian Science Fund No. P~31361-N36; the National Natural Science Foundation of China under Contracts No. 12005040, No. 11675166, No. 11705209; No. 11975076; No. 12135005; No. 12175041; No. 12161141008; Key Research Program of Frontier Sciences, Chinese Academy of Sciences (CAS), Grant No. QYZDJ-SSW-SLH011; the Shanghai Science and Technology Committee (STCSM) under Grant No. 19ZR1403000; the Ministry of Education, Youth and Sports of the Czech Republic under Contract No. LTT17020; Horizon 2020 ERC Advanced Grant No. 884719 and ERC Starting Grant No. 947006 “InterLeptons” (European Union); the Carl Zeiss Foundation, the Deutsche Forschungsgemeinschaft, the Excellence Cluster Universe, and the VolkswagenStiftung; the Department of Atomic Energy (Project Identification No. RTI 4002) and the Department of Science and Technology of India; the Istituto Nazionale di Fisica Nucleare of Italy; National Research Foundation (NRF) of Korea Grants No. 2016R1\-D1A1B\-01010135, No. 2016R1\-D1A1B\-02012900, No. 2018R1\-A2B\-3003643, No. 2018R1\-A6A1A\-06024970, No. 2019K1\-A3A7A\-09033840, No. 2019R1\-I1A3A\-01058933, No. 2021R1\-A6A1A\-03043957, No. 2021R1\-F1A\-1060423, No. 2021R1\-F1A\-1064008; 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; 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, and the HSE University Basic Research Program, Moscow; University of Tabuk research grants S-1440-0321, S-0256-1438, and S-0280-1439 (Saudi Arabia); the Slovenian Research Agency Grants No. J1-9124 and No. P1-0135; Ikerbasque, Basque Foundation for Science, Spain; the Swiss National Science Foundation; the Ministry of Education and the Ministry of Science and Technology of Taiwan; and the United States Department of Energy and the National Science Foundation. Publisher Copyright: © 2022 authors. Published by the American Physical Society.

PY - 2022/2/25

Y1 - 2022/2/25

N2 - We search for a light Higgs boson (A0) decaying into a τ+τ- or μ+μ- pair in the radiative decays of ϒ(1S). The production of ϒ(1S) mesons is tagged by ϒ(2S)→π+π-ϒ(1S) transitions, using 158×106 ϒ(2S) events accumulated with the Belle detector at the KEKB asymmetric energy electron-positron collider. No significant A0 signals in the mass range from the τ+τ- or μ+μ- threshold to 9.2 GeV/c2 are observed. We set the upper limits at 90% credibility level (C.L.) on the product branching fractions for ϒ(1S)→γA0 and A0→τ+τ- varying from 3.8×10-6 to 1.5×10-4. Our results represent an approximately twofold improvement on the current world best upper limits for the ϒ(1S)→γA0(→τ+τ-) production. For A0→μ+μ-, the upper limits on the product branching fractions for ϒ(1S)→γA0 and A0→μ+μ- are at the same level as the world average limits, and vary from 3.1×10-7 to 1.6×10-5. The upper limits at 90% credibility level on the Yukawa coupling fϒ(1S) and mixing angle sinθA0 are also given.

AB - We search for a light Higgs boson (A0) decaying into a τ+τ- or μ+μ- pair in the radiative decays of ϒ(1S). The production of ϒ(1S) mesons is tagged by ϒ(2S)→π+π-ϒ(1S) transitions, using 158×106 ϒ(2S) events accumulated with the Belle detector at the KEKB asymmetric energy electron-positron collider. No significant A0 signals in the mass range from the τ+τ- or μ+μ- threshold to 9.2 GeV/c2 are observed. We set the upper limits at 90% credibility level (C.L.) on the product branching fractions for ϒ(1S)→γA0 and A0→τ+τ- varying from 3.8×10-6 to 1.5×10-4. Our results represent an approximately twofold improvement on the current world best upper limits for the ϒ(1S)→γA0(→τ+τ-) production. For A0→μ+μ-, the upper limits on the product branching fractions for ϒ(1S)→γA0 and A0→μ+μ- are at the same level as the world average limits, and vary from 3.1×10-7 to 1.6×10-5. The upper limits at 90% credibility level on the Yukawa coupling fϒ(1S) and mixing angle sinθA0 are also given.

UR - http://www.scopus.com/inward/record.url?scp=85126389684&partnerID=8YFLogxK

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U2 - 10.1103/PhysRevLett.128.081804

DO - 10.1103/PhysRevLett.128.081804

M3 - Article

C2 - 35275679

AN - SCOPUS:85126389684

SN - 0031-9007

VL - 128

JO - Physical Review Letters

JF - Physical Review Letters

IS - 8

M1 - 081804

ER -

Search for a Light Higgs Boson in Single-Photon Decays of ϒ (1S) Using ϒ (2S) →π+π- ϒ (1S) Tagging Method

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