| Article | |
| Report number | arXiv:2112.11852 ; Belle Preprint 2021-30; KEK Preprint 2021-35 |
| Title | Search for a light Higgs boson in single-photon decays of $\Upsilon(1S)$ using $\Upsilon(2S) \to \pi^+ \pi^- \Upsilon(1S)$ tagging method |
| Author(s) |
Jia, S. (Fudan U.) ; Shen, C.P. (Fudan U.) ; Adachi, I. (KEK, Tsukuba ; Sokendai, Kanagawa) ; Aihara, H. (Tokyo U.) ; Said, S. Al (U. Tabuk ; Jeddah U. ; Minia U.) ; Asner, D.M. (Brookhaven) ; Atmacan, H. (Cincinnati U.) ; Aushev, T. (Higher Sch. of Economics, Moscow) ; Ayad, R. (U. Tabuk) ; Babu, V. (DESY) ; Behera, P. (Indian Inst. Tech., Madras) ; Belous, K. (Serpukhov, IHEP) ; Bennett, J. (Mississippi U.) ; Bessner, M. (Hawaii U.) ; Bhardwaj, V. (IISER, Mohali) ; Bhuyan, B. (Indian Inst. Tech., Guwahati) ; Bilka, T. (Charles U.) ; Bobrov, A. (Novosibirsk State U. ; Novosibirsk, IYF) ; Bodrov, D. (Lebedev Inst. ; Higher Sch. of Economics, Moscow) ; Bonvicini, G. (Wayne State U.) ; Borah, J. (Indian Inst. Tech., Guwahati) ; Bračko, M. (Maribor U. ; Stefan Inst., Ljubljana) ; Branchini, P. (INFN, Rome3) ; Browder, T.E. (Hawaii U.) ; Budano, A. (INFN, Rome3) ; Campajola, M. (INFN, Naples) ; Červenkov, D. (Charles U.) ; Chang, M.-C. (Catholic U.) ; Chang, P. (Taiwan, Natl. Taiwan U.) ; Chekelian, V. (Munich, Max Planck Inst.) ; Chen, A. (Taiwan, Natl. Central U.) ; Cheon, B.G. (Hanyang U.) ; Chilikin, K. (Lebedev Inst.) ; Cho, H.E. (Hanyang U.) ; Cho, K. (KISTI, Daejeon) ; Cho, S.-J. (Yonsei U.) ; Choi, S.-K. (Chung-Ang U.) ; Choi, Y. (Sungkyunkwan U.) ; Choudhury, S. (Iowa State U.) ; Cinabro, D. (Wayne State U.) ; Cunliffe, S. (DESY) ; Das, S. (MNIT, Jaipur) ; Dash, N. (Indian Inst. Tech., Madras) ; De Nardo, G. (INFN, Naples) ; De Pietro, G. (INFN, Rome3) ; Dhamija, R. (Indian Inst. Tech., Hyderabad) ; Di Capua, F. (INFN, Naples) ; Doležal, Z. (Charles U.) ; Dong, T.V. (Duy Tan U.) ; Epifanov, D. (Novosibirsk State U. ; Novosibirsk, IYF) ; Ferber, T. (DESY) ; Ferlewicz, D. (Melbourne U.) ; Fulsom, B.G. (PNL, Richland) ; Garg, R. (Panjab U.) ; Gaur, V. (Virginia Tech. ; Virginia State U.) ; Gabyshev, N. (Novosibirsk State U. ; Novosibirsk, IYF) ; Giri, A. (Indian Inst. Tech., Hyderabad) ; Goldenzweig, P. (KIT, Karlsruhe, EKP) ; Golob, B. (Ljubljana U. ; Stefan Inst., Ljubljana) ; Graziani, E. (INFN, Rome3) ; Guan, Y. (Cincinnati U.) ; Gudkova, K. (Novosibirsk State U. ; Novosibirsk, IYF) ; Hadjivasiliou, C. (PNL, Richland) ; Hara, T. (KEK, Tsukuba ; Sokendai, Kanagawa) ; Hayasaka, K. (Niigata U.) ; Hayashii, H. (Nara Women's U.) ; Hedges, M.T. (Hawaii U.) ; Hou, W.-S. (Taiwan, Natl. Taiwan U.) ; Inami, K. (Nagoya U.) ; Inguglia, G. (Vienna, OAW) ; Ishikawa, A. (KEK, Tsukuba ; Sokendai, Kanagawa) ; Itoh, R. (KEK, Tsukuba ; Sokendai, Kanagawa) ; Iwasaki, M. (Osaka City U.) ; Iwasaki, Y. (KEK, Tsukuba) ; Jacobs, W.W. (CERN) ; Jang, E.-J. (Gyeongsang Natl. U.) ; Jin, Y. (Tokyo U.) ; Joo, K.K. (Chonnam Natl. U.) ; Kahn, J. (KIT, Karlsruhe, EKP) ; Kaliyar, A.B. (Tata Inst.) ; Kang, K.H. (Tokyo U., IPMU) ; Kawasaki, T. (Kitasato U.) ; Kiesling, C. (Munich, Max Planck Inst.) ; Kim, C.H. (Hanyang U.) ; Kim, D.Y. (Hanyang U.) ; Kim, K.-H. (Yonsei U.) ; Kim, Y.-K. (Yonsei U.) ; Kinoshita, K. (Cincinnati U.) ; Kodyš, P. (Charles U.) ; Kohani, S. (Hawaii U.) ; Konno, T. (Kitasato U.) ; Korobov, A. (Novosibirsk State U. ; Novosibirsk, IYF) ; Korpar, S. (Maribor U. ; Stefan Inst., Ljubljana) ; Kovalenko, E. (Novosibirsk State U. ; Novosibirsk, IYF) ; Križan, P. (Ljubljana U. ; Stefan Inst., Ljubljana) ; Kroeger, R. (Mississippi U.) ; Krokovny, P. (Novosibirsk State U. ; Novosibirsk, IYF) ; Kumar, M. (MNIT, Jaipur) ; Kumar, R. (Punjab Agric. U., Ludhiana) ; Kumara, K. (Wayne State U.) ; Kwon, Y.-J. (Yonsei U.) ; Lam, T. (Virginia Tech. ; Virginia State U.) ; Laurenza, M. (INFN, Rome3 ; Rome III U.) ; Lee, S.C. (Kyungpook Natl. U.) ; Li, J. (Kyungpook Natl. U.) ; Li, L.K. (Cincinnati U.) ; Li, Y. (Fudan U.) ; Li, Y.B. (Fudan U.) ; Gioi, L. Li (Munich, Max Planck Inst.) ; Libby, J. (Indian Inst. Tech., Madras) ; Lieret, K. (Munich U.) ; Liventsev, D. (KEK, Tsukuba ; Wayne State U.) ; Martini, A. (DESY) ; Masuda, M. (Nanjing U. ; Osaka U., Res. Ctr. Nucl. Phys. ; ERI, Tokyo) ; Matsuda, T. (Miyazaki U.) ; Matvienko, D. (Lebedev Inst. ; Novosibirsk State U. ; Novosibirsk, IYF) ; Maurya, S.K. (Indian Inst. Tech., Guwahati) ; Meier, F. (Duke U.) ; Merola, M. (INFN, Naples) ; Metzner, F. (KIT, Karlsruhe, EKP) ; Miyabayashi, K. (Nara Women's U.) ; Mizuk, R. (Lebedev Inst. ; Higher Sch. of Economics, Moscow) ; Mohanty, G.B. (Tata Inst.) ; Nakao, M. (KEK, Tsukuba ; Sokendai, Kanagawa) ; Narwal, D. (Indian Inst. Tech., Guwahati) ; Natkaniec, Z. (Cracow, INP) ; Natochii, A. (Hawaii U.) ; Nayak, L. (Indian Inst. Tech., Hyderabad) ; Nisar, N.K. (Brookhaven) ; Nishida, S. (KEK, Tsukuba ; Sokendai, Kanagawa) ; Nishimura, K. (Hawaii U.) ; Ogawa, K. (Niigata U.) ; Ogawa, S. (Toho U.) ; Ono, H. (Niigata U. ; Nippon Dental U.) ; Oskin, P. (Lebedev Inst.) ; Pakhlov, P. (Lebedev Inst. ; Moscow Phys. Eng. Inst.) ; Pakhlova, G. (Lebedev Inst. ; Higher Sch. of Economics, Moscow) ; Pang, T. (Pittsburgh U.) ; Pardi, S. (INFN, Naples) ; Park, S.-H. (KEK, Tsukuba) ; Patra, S. (IISER, Mohali) ; Paul, S. (Munich, Tech. U. ; Munich, Max Planck Inst.) ; Pedlar, T.K. (Luther Coll.) ; Pestotnik, R. (Stefan Inst., Ljubljana) ; Piilonen, L.E. (Virginia Tech. ; Virginia State U.) ; Podobnik, T. (Ljubljana U. ; Stefan Inst., Ljubljana) ; Prencipe, E. (Julich, Forschungszentrum) ; Prim, M.T. (Bonn U., HISKP) ; Röhrken, M. (DESY) ; Rostomyan, A. (DESY) ; Rout, N. (Indian Inst. Tech., Madras) ; Russo, G. (INFN, Naples) ; Sahoo, D. (Iowa State U.) ; Sandilya, S. (Indian Inst. Tech., Hyderabad) ; Sangal, A. (Cincinnati U.) ; Santelj, L. (Ljubljana U. ; Stefan Inst., Ljubljana) ; Sanuki, T. (Tohoku U.) ; Savinov, V. (Pittsburgh U.) ; Schnell, G. (Basque U., Bilbao ; IKERBASQUE, Bilbao) ; Schueler, J. (Hawaii U.) ; Schwanda, C. (Vienna, OAW) ; Seino, Y. (Niigata U.) ; Senyo, K. (Yamagata U.) ; Sevior, M.E. (Melbourne U.) ; Shapkin, M. (Serpukhov, IHEP) ; Sharma, C. (MNIT, Jaipur) ; Shebalin, V. (Hawaii U.) ; Shiu, J.-G. (Taiwan, Natl. Taiwan U.) ; Shwartz, B. (Novosibirsk State U. ; Novosibirsk, IYF) ; Singh, J.B. (Panjab U.) ; Sokolov, A. (Serpukhov, IHEP) ; Solovieva, E. (Lebedev Inst.) ; Stanič, S. (Nova Gorica U.) ; Starič, M. (Stefan Inst., Ljubljana) ; Stottler, Z.S. (Virginia Tech. ; Virginia State U.) ; Sumihama, M. (Gifu U. ; Nanjing U. ; Osaka U., Res. Ctr. Nucl. Phys.) ; Sumisawa, K. (KEK, Tsukuba ; Sokendai, Kanagawa) ; Sumiyoshi, T. (Tokyo Metropolitan U.) ; Sutcliffe, W. (Bonn U., HISKP) ; Takizawa, M. (Showa Pharmaceutical U. ; RIKEN (main) ; KEK, Tsukuba) ; Tamponi, U. (INFN, Turin) ; Tanida, K. (JAEA, Ibaraki) ; Tenchini, F. (DESY) ; Trabelsi, K. (IJCLab, Orsay) ; Uchida, M. (Tokyo Inst. Tech.) ; Uehara, S. (KEK, Tsukuba ; Sokendai, Kanagawa) ; Uglov, T. (Lebedev Inst. ; Higher Sch. of Economics, Moscow) ; Unno, Y. (Hanyang U.) ; Uno, K. (Niigata U.) ; Uno, S. (KEK, Tsukuba ; Sokendai, Kanagawa) ; Urquijo, P. (Melbourne U.) ; Vahsen, S.E. (Hawaii U.) ; Van Tonder, R. (Bonn U., HISKP) ; Varner, G. (Hawaii U.) ; Vinokurova, A. (Novosibirsk State U. ; Novosibirsk, IYF) ; Waheed, E. (KEK, Tsukuba) ; Wang, D. (Florida U.) ; Wang, E. (Pittsburgh U.) ; Wang, M.-Z. (Taiwan, Natl. Taiwan U.) ; Watanuki, S. (Yonsei U.) ; Won, E. (Korea U.) ; Yabsley, B.D. (Sydney U.) ; Yan, W. (USTC, Hefei) ; Yang, S.B. (Korea U.) ; Ye, H. (DESY) ; Yelton, J. (Florida U.) ; Yin, J.H. (Korea U.) ; Yusa, Y. (Niigata U.) ; Zhai, Y. (Iowa State U.) ; Zhang, Z.P. (USTC, Hefei) ; Zhilich, V. (Novosibirsk State U. ; Novosibirsk, IYF) ; Zhukova, V. (Lebedev Inst.) |
| Publication | 2022-02-23 |
| Imprint | 2021-12-22 |
| Number of pages | 9 |
| Note | 9 pages, 5 figures; accepted for publication as a Letter in Physical Review Letters |
| In: | Phys. Rev. Lett. 128 (2022) 081804 |
| DOI | 10.1103/PhysRevLett.128.081804 (publication) |
| Subject category | hep-ph ; Particle Physics - Phenomenology ; hep-ex ; Particle Physics - Experiment |
| Accelerator/Facility, Experiment | KEK BF BELLE |
| Abstract | We search for a light Higgs boson ($A^0$) decaying into a $\tau^+\tau^-$ or $\mu^+\mu^-$ pair in the radiative decays of $\Upsilon(1S)$. The production of $\Upsilon(1S)$ mesons is tagged by $\Upsilon(2S)\to \pi^+ \pi^- \Upsilon(1S)$ transitions, using 158 million $\Upsilon(2S)$ events accumulated with the Belle detector at the KEKB asymmetric energy electron-positron collider. No significant $A^0$ signals in the mass range from the $\tau^+\tau^-$ or $\mu^+\mu^-$ threshold to 9.2 GeV/$c^2$ are observed. We set the upper limits at 90% credibility level (C.L.) on the product branching fractions for $\Upsilon(1S)\to \gamma A^0$ and $A^0\to \tau^+\tau^-$ varying from $3.8\times10^{-6}$ to $1.5\times10^{-4}$. Our results represent an approximately twofold improvement on the current world best upper limits for the $\Upsilon(1S)\to \gamma A^0(\to \tau^+\tau^-)$ production. For $A^0\to \mu^+\mu^-$, the upper limits on the product branching fractions for $\Upsilon(1S)\to \gamma A^0$ and $A^0\to \mu^+\mu^-$ are at the same level as the world average limits, and vary from $3.1\times10^{-7}$ to $1.6\times10^{-5}$. The upper limits at 90% C.L. on the Yukawa coupling $f_{\Upsilon(1S)}$ and mixing angle ${\rm sin}\theta_{A^0}$ are also given. |
| Copyright/License | preprint: (License: arXiv nonexclusive-distrib 1.0) publication: Published by the American Physical Society (License: CC BY 4.0) |
Corresponding record in: Inspire
记录创建於2022-02-24，最後更新在2024-10-24