Search for a Light Higgs Boson in Single-Photon Decays of ϒ(1S) Using ϒ(2S)→π^{+}π^{-}ϒ(1S) Tagging Method.
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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DOI：
10.1103/physrevlett.128.081804
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发表时间：
2021-12
影响因子：
8.6
通讯作者：
Belle Collaboration S. Jia;C. Shen;I. Adachi;H. Aihara;S. Said;D. 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. Bravcko;P. Branchini;T. Browder;A. Budano;M. Campajola;D. vCervenkov;M. Chang;P. Chang;V. Chekelian;A. Chen;B. Cheon;K. Chilikin;H. Cho;K. Cho;S. Cho;S. Choi;Y. Choi;S. Choudhury;D. Cinabro;S. Cunliffe;S. Das;N. Dash;G. Nardo;G. D. Pietro;R. Dhamija;F. Capua;Z. Dolevzal;T. Dong;D. Epifanov;T. Ferber;D. Ferlewicz;B. 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. Hedges;W. Hou;K. Inami;G. Inguglia;A. Ishikawa;R. Itoh;M. Iwasaki;Y. Iwasaki;W. Jacobs;E. Jang;Y. Jin;K. Joo;J. Kahn;A. B. Kaliyar;K. Kang;T. Kawasaki;C. Kiesling;C. Kim;D. Kim;K. Kim;Y. Kim;K. Kinoshita;P. Kodyvs;S. Kohani;T. Konno;A. Korobov;S. Korpar;E. Kovalenko;P. Krivzan;R. Kroeger;P. Krokovny;M. Kumar;R. Kumar;K. Kumara;Y. Kwon;T. Lam;M. Laurenza;S. Lee;J. Li;L. Li;Y. Li;Y. Li;L. Gioi;J. Libby;K. Lieret;D. Liventsev;Alessio Martini;M. Masuda;T. Matsuda;D. Matvienko;S. Maurya;F. Meier;M. Merola;F. Metzner;K. Miyabayashi;R. Mizuk;G. Mohanty;M. Nakao;D. Narwal;Z. Natkaniec;A. Natochii;L. Nayak;N. Nisar;S. Nishida;K. Nishimura;K. Ogawa;S. Ogawa;H. Ono;P. Oskin;P. Pakhlov;G. Pakhlova;T. Pang;S. Pardi;S. Park;S. Patra;S. Paul;T. Pedlar;R. Pestotnik;L. Piilonen;T. Podobnik;E. Prencipe;M. Prim;M. Rohrken;A. Rostomyan;N. Rout;G. Russo;D. Sahoo;S. Sandilya;A. Sangal;L. Šantelj;T. Sanuki;V. Savinov;G. Schnell;J. Schueler;C. Schwanda;Y. Seino;K. Senyo;M. Sevior;M. Shapkin;C. Sharma;V. Shebalin;J. Shiu;B. Shwartz;J. Singh;A. Sokolov;E. Solovieva;S. Stanivc;M. Starivc;Z. 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. Vahsen;R. Tonder;G. Varner;A. Vinokurova;E. Waheed;D. Wang;E. Wang;M. Wang;S. Watanuki;E. Won;B. Yabsley;W. Yan;S. Yang;H. Ye;J. Yelton;J. Yin;Y. Yusa;Y. Zhai;Z. Zhang;V. Zhilich;V. Zhukova
中科院分区：
文献类型：
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作者：
Belle Collaboration S. Jia;C. Shen;I. Adachi;H. Aihara;S. Said;D. 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. Bravcko;P. Branchini;T. Browder;A. Budano;M. Campajola;D. vCervenkov;M. Chang;P. Chang;V. Chekelian;A. Chen;B. Cheon;K. Chilikin;H. Cho;K. Cho;S. Cho;S. Choi;Y. Choi;S. Choudhury;D. Cinabro;S. Cunliffe;S. Das;N. Dash;G. Nardo;G. D. Pietro;R. Dhamija;F. Capua;Z. Dolevzal;T. Dong;D. Epifanov;T. Ferber;D. Ferlewicz;B. 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. Hedges;W. Hou;K. Inami;G. Inguglia;A. Ishikawa;R. Itoh;M. Iwasaki;Y. Iwasaki;W. Jacobs;E. Jang;Y. Jin;K. Joo;J. Kahn;A. B. Kaliyar;K. Kang;T. Kawasaki;C. Kiesling;C. Kim;D. Kim;K. Kim;Y. Kim;K. Kinoshita;P. Kodyvs;S. Kohani;T. Konno;A. Korobov;S. Korpar;E. Kovalenko;P. Krivzan;R. Kroeger;P. Krokovny;M. Kumar;R. Kumar;K. Kumara;Y. Kwon;T. Lam;M. Laurenza;S. Lee;J. Li;L. Li;Y. Li;Y. Li;L. Gioi;J. Libby;K. Lieret;D. Liventsev;Alessio Martini;M. Masuda;T. Matsuda;D. Matvienko;S. Maurya;F. Meier;M. Merola;F. Metzner;K. Miyabayashi;R. Mizuk;G. Mohanty;M. Nakao;D. Narwal;Z. Natkaniec;A. Natochii;L. Nayak;N. Nisar;S. Nishida;K. Nishimura;K. Ogawa;S. Ogawa;H. Ono;P. Oskin;P. Pakhlov;G. Pakhlova;T. Pang;S. Pardi;S. Park;S. Patra;S. Paul;T. Pedlar;R. Pestotnik;L. Piilonen;T. Podobnik;E. Prencipe;M. Prim;M. Rohrken;A. Rostomyan;N. Rout;G. Russo;D. Sahoo;S. Sandilya;A. Sangal;L. Šantelj;T. Sanuki;V. Savinov;G. Schnell;J. Schueler;C. Schwanda;Y. Seino;K. Senyo;M. Sevior;M. Shapkin;C. Sharma;V. Shebalin;J. Shiu;B. Shwartz;J. Singh;A. Sokolov;E. Solovieva;S. Stanivc;M. Starivc;Z. 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. Vahsen;R. Tonder;G. Varner;A. Vinokurova;E. Waheed;D. Wang;E. Wang;M. Wang;S. Watanuki;E. Won;B. Yabsley;W. Yan;S. Yang;H. Ye;J. Yelton;J. Yin;Y. Yusa;Y. Zhai;Z. Zhang;V. Zhilich;V. Zhukova
We search for a light Higgs boson (A^{0}) 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 158×10^{6} ϒ(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 τ^{+}τ^{-} or μ^{+}μ^{-} 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 ϒ(1S)→γA^{0} and A^{0}→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)→γA^{0}(→τ^{+}τ^{-}) production. For A^{0}→μ^{+}μ^{-}, the upper limits on the product branching fractions for ϒ(1S)→γA^{0} and A^{0}→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 f_{ϒ(1S)} and mixing angle sinθ_{A^{0}} are also given.
We search for a light Higgs boson (A^{0}) 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 158×10^{6} ϒ(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 τ^{+}τ^{-} or μ^{+}μ^{-} 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 ϒ(1S)→γA^{0} and A^{0}→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)→γA^{0}(→τ^{+}τ^{-}) production. For A^{0}→μ^{+}μ^{-}, the upper limits on the product branching fractions for ϒ(1S)→γA^{0} and A^{0}→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 f_{ϒ(1S)} and mixing angle sinθ_{A^{0}} are also given.