Search for B−→μ−ν¯μ Decays at the Belle Experiment

A. Sibidanov; K. E. Varvell; I. Adachi; H. Aihara; S. Al Said; D. M. Asner; T. Aushev; R. Ayad; V. Babu; I. Badhrees; S. Bahinipati; A. M. Bakich; V. Bansal; E. Barberio; P. Behera; B. Bhuyan; J. Biswal; A. Bozek; M. Bračko; T. E. Browder; D. Červenkov; P. Chang; V. Chekelian; A. Chen; B. G. Cheon; K. Chilikin; K. Cho; S.-K. Choi; Y. Choi; D. Cinabro; T. Czank; N. Dash; S. Di Carlo; Z. Doležal; Z. Drásal; D. Dutta; S. Eidelman; D. Epifanov; J. E. Fast; T. Ferber; B. G. Fulsom; V. Gaur; N. Gabyshev; A. Garmash; P. Goldenzweig; D. Greenwald; Y. Guan; E. Guido; J. Haba; K. Hayasaka; H. Hayashii; M. T. Hedges; S. Hirose; W.-S. Hou; C.-L. Hsu; T. Iijima; K. Inami; G. Inguglia; A. Ishikawa; R. Itoh; M. Iwasaki; W. W. Jacobs; I. Jaegle; H. B. Jeon; Y. Jin; K. K. Joo; T. Julius; J. Kahn; A. B. Kaliyar; K. H. Kang; G. Karyan; T. Kawasaki; C. Kiesling; D. Y. Kim; J. B. Kim; S. H. Kim; Y. J. Kim; K. Kinoshita; P. Kodyš; S. Korpar; D. Kotchetkov; P. Križan; P. Krokovny; T. Kuhr; R. Kulasiri; R. Kumar; A. Kuzmin; Y.-J. Kwon; J. S. Lange; I. S. Lee; C. H. Li; L. Li; L. Li Gioi; J. Libby; D. Liventsev; M. Lubej; T. Luo; M. Masuda; T. Matsuda; M. Merola; K. Miyabayashi; H. Miyata; R. Mizuk; G. B. Mohanty; H. K. Moon; T. Mori; R. Mussa; E. Nakano; M. Nakao; T. Nanut; K. J. Nath; Z. Natkaniec; M. Nayak; M. Niiyama; N. K. Nisar; S. Nishida; S. Ogawa; S. Okuno; H. Ono; P. Pakhlov; G. Pakhlova; B. Pal; C.-S. Park; H. Park; S. Paul; T. K. Pedlar; R. Pestotnik; L. E. Piilonen; M. Ritter; A. Rostomyan; M. Rozanska; Y. Sakai; M. Salehi; S. Sandilya; Y. Sato; V. Savinov; O. Schneider; G. Schnell; C. Schwanda; Y. Seino; K. Senyo; M. E. Sevior; V. Shebalin; C. P. Shen; T.-A. Shibata; J.-G. Shiu; F. Simon; A. Sokolov; E. Solovieva; M. Starič; J. F. Strube; J. Stypula; M. Sumihama; K. Sumisawa; T. Sumiyoshi; M. Takizawa; U. Tamponi; K. Tanida; F. Tenchini; K. Trabelsi; M. Uchida; S. Uehara; T. Uglov; Y. Unno; S. Uno; P. Urquijo; C. Van Hulse; G. Varner; V. Vorobyev; C. H. Wang; M.-Z. Wang; P. Wang; M. Watanabe; S. Watanuki; E. Widmann; E. Won; Y. Yamashita; H. Ye; J. Yelton; C. Z. Yuan; Y. Yusa; Z. P. Zhang; V. Zhilich; V. Zhukova; V. Zhulanov; A. Zupanc; The Belle Collaboration;A. Sibidanov;K. E. Varvell;I. Adachi;H. Aihara;S. Al Said;D. M. Asner;T. Aushev;R. Ayad;V. Babu;I. Badhrees;S. Bahinipati;A. M. Bakich;V. Bansal;E. Barberio;P. Behera;B. Bhuyan;J. Biswal;A. Bozek;M. Bračko;T. E. Browder;D. Červenkov;P. Chang;V. Chekelian;A. Chen;B. G. Cheon;K. Chilikin;K. Cho;S.-K. Choi;Y. Choi;D. Cinabro;T. Czank;N. Dash;S. Di Carlo;Z. Doležal;Z. Drásal;D. Dutta;S. Eidelman;D. Epifanov;J. E. Fast;T. Ferber;B. G. Fulsom;V. Gaur;N. Gabyshev;A. Garmash;P. Goldenzweig;D. Greenwald;Y. Guan;E. Guido;J. Haba;K. Hayasaka;H. Hayashii;M. T. Hedges;S. Hirose;W.-S. Hou;C.-L. Hsu;T. Iijima;K. Inami;G. Inguglia;A. Ishikawa;R. Itoh;M. Iwasaki;W. W. Jacobs;I. Jaegle;H. B. Jeon;Y. Jin;K. K. Joo;T. Julius;J. Kahn;A. B. Kaliyar;K. H. Kang;G. Karyan;T. Kawasaki;C. Kiesling;D. Y. Kim;J. B. Kim;S. H. Kim;Y. J. Kim;K. Kinoshita;P. Kodyš;S. Korpar;D. Kotchetkov;P. Križan;P. Krokovny;T. Kuhr;R. Kulasiri;R. Kumar;A. Kuzmin;Y.-J. Kwon;J. S. Lange;I. S. Lee;C. H. Li;L. Li;L. Li Gioi;J. Libby;D. Liventsev;M. Lubej;T. Luo;M. Masuda;T. Matsuda;M. Merola;K. Miyabayashi;H. Miyata;R. Mizuk;G. B. Mohanty;H. K. Moon;T. Mori;R. Mussa;E. Nakano;M. Nakao;T. Nanut;K. J. Nath;Z. Natkaniec;M. Nayak;M. Niiyama;N. K. Nisar;S. Nishida;S. Ogawa;S. Okuno;H. Ono;P. Pakhlov;G. Pakhlova;B. Pal;C.-S. Park;H. Park;S. Paul;T. K. Pedlar;R. Pestotnik;L. E. Piilonen;M. Ritter;A. Rostomyan;M. Rozanska;Y. Sakai;M. Salehi;S. Sandilya;Y. Sato;V. Savinov;O. Schneider;G. Schnell;C. Schwanda;Y. Seino;K. Senyo;M. E. Sevior;V. Shebalin;C. P. Shen;T.-A. Shibata;J.-G. Shiu;F. Simon;A. Sokolov;E. Solovieva;M. Starič;J. F. Strube;J. Stypula;M. Sumihama;K. Sumisawa;T. Sumiyoshi;M. Takizawa;U. Tamponi;K. Tanida;F. Tenchini;K. Trabelsi;M. Uchida;S. Uehara;T. Uglov;Y. Unno;S. Uno;P. Urquijo;C. Van Hulse;G. Varner;V. Vorobyev;C. H. Wang;M.-Z. Wang;P. Wang;M. Watanabe;S. Watanuki;E. Widmann;E. Won;Y. Yamashita;H. Ye;J. Yelton;C. Z. Yuan;Y. Yusa;Z. P. Zhang;V. Zhilich;V. Zhukova;V. Zhulanov;A. Zupanc;The Belle Collaboration;

doi:10.1103/physrevlett.121.031801

Search for B−→μ−ν¯μ Decays at the Belle Experiment

Clicks: 338

ID: 273336

2018

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Abstract

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We report the results of a search for the rare, purely leptonic decay B−→μ−ν¯μ performed with a 711 fb−1 data sample that contains 772×106 BB¯ pairs, collected near the ϒ(4S) resonance with the Belle detector at the KEKB asymmetric-energy e+e− collider. The signal events are selected based on the presence of a high momentum muon and the topology of the rest of the event showing properties of a generic B-meson decay, as well as the missing energy and momentum being consistent with the hypothesis of a neutrino from the signal decay. We find a 2.4 standard deviation excess above background including systematic uncertainties, which corresponds to a branching fraction of B(B−→μ−ν¯μ)=(6.46±2.22±1.60)×10−7 or a frequentist 90% confidence level interval on the B−→μ−ν¯μ branching fraction of [2.9,10.7]×10−7.

Reference Key	collaboration2018physicalsearch12 Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors	A. Sibidanov,K. E. Varvell,I. Adachi,H. Aihara,S. Al Said,D. M. Asner,T. Aushev,R. Ayad,V. Babu,I. Badhrees,S. Bahinipati,A. M. Bakich,V. Bansal,E. Barberio,P. Behera,B. Bhuyan,J. Biswal,A. Bozek,M. Bračko,T. E. Browder,D. Červenkov,P. Chang,V. Chekelian,A. Chen,B. G. Cheon,K. Chilikin,K. Cho,S.-K. Choi,Y. Choi,D. Cinabro,T. Czank,N. Dash,S. Di Carlo,Z. Doležal,Z. Drásal,D. Dutta,S. Eidelman,D. Epifanov,J. E. Fast,T. Ferber,B. G. Fulsom,V. Gaur,N. Gabyshev,A. Garmash,P. Goldenzweig,D. Greenwald,Y. Guan,E. Guido,J. Haba,K. Hayasaka,H. Hayashii,M. T. Hedges,S. Hirose,W.-S. Hou,C.-L. Hsu,T. Iijima,K. Inami,G. Inguglia,A. Ishikawa,R. Itoh,M. Iwasaki,W. W. Jacobs,I. Jaegle,H. B. Jeon,Y. Jin,K. K. Joo,T. Julius,J. Kahn,A. B. Kaliyar,K. H. Kang,G. Karyan,T. Kawasaki,C. Kiesling,D. Y. Kim,J. B. Kim,S. H. Kim,Y. J. Kim,K. Kinoshita,P. Kodyš,S. Korpar,D. Kotchetkov,P. Križan,P. Krokovny,T. Kuhr,R. Kulasiri,R. Kumar,A. Kuzmin,Y.-J. Kwon,J. S. Lange,I. S. Lee,C. H. Li,L. Li,L. Li Gioi,J. Libby,D. Liventsev,M. Lubej,T. Luo,M. Masuda,T. Matsuda,M. Merola,K. Miyabayashi,H. Miyata,R. Mizuk,G. B. Mohanty,H. K. Moon,T. Mori,R. Mussa,E. Nakano,M. Nakao,T. Nanut,K. J. Nath,Z. Natkaniec,M. Nayak,M. Niiyama,N. K. Nisar,S. Nishida,S. Ogawa,S. Okuno,H. Ono,P. Pakhlov,G. Pakhlova,B. Pal,C.-S. Park,H. Park,S. Paul,T. K. Pedlar,R. Pestotnik,L. E. Piilonen,M. Ritter,A. Rostomyan,M. Rozanska,Y. Sakai,M. Salehi,S. Sandilya,Y. Sato,V. Savinov,O. Schneider,G. Schnell,C. Schwanda,Y. Seino,K. Senyo,M. E. Sevior,V. Shebalin,C. P. Shen,T.-A. Shibata,J.-G. Shiu,F. Simon,A. Sokolov,E. Solovieva,M. Starič,J. F. Strube,J. Stypula,M. Sumihama,K. Sumisawa,T. Sumiyoshi,M. Takizawa,U. Tamponi,K. Tanida,F. Tenchini,K. Trabelsi,M. Uchida,S. Uehara,T. Uglov,Y. Unno,S. Uno,P. Urquijo,C. Van Hulse,G. Varner,V. Vorobyev,C. H. Wang,M.-Z. Wang,P. Wang,M. Watanabe,S. Watanuki,E. Widmann,E. Won,Y. Yamashita,H. Ye,J. Yelton,C. Z. Yuan,Y. Yusa,Z. P. Zhang,V. Zhilich,V. Zhukova,V. Zhulanov,A. Zupanc,The Belle Collaboration;A. Sibidanov;K. E. Varvell;I. Adachi;H. Aihara;S. Al Said;D. M. Asner;T. Aushev;R. Ayad;V. Babu;I. Badhrees;S. Bahinipati;A. M. Bakich;V. Bansal;E. Barberio;P. Behera;B. Bhuyan;J. Biswal;A. Bozek;M. Bračko;T. E. Browder;D. Červenkov;P. Chang;V. Chekelian;A. Chen;B. G. Cheon;K. Chilikin;K. Cho;S.-K. Choi;Y. Choi;D. Cinabro;T. Czank;N. Dash;S. Di Carlo;Z. Doležal;Z. Drásal;D. Dutta;S. Eidelman;D. Epifanov;J. E. Fast;T. Ferber;B. G. Fulsom;V. Gaur;N. Gabyshev;A. Garmash;P. Goldenzweig;D. Greenwald;Y. Guan;E. Guido;J. Haba;K. Hayasaka;H. Hayashii;M. T. Hedges;S. Hirose;W.-S. Hou;C.-L. Hsu;T. Iijima;K. Inami;G. Inguglia;A. Ishikawa;R. Itoh;M. Iwasaki;W. W. Jacobs;I. Jaegle;H. B. Jeon;Y. Jin;K. K. Joo;T. Julius;J. Kahn;A. B. Kaliyar;K. H. Kang;G. Karyan;T. Kawasaki;C. Kiesling;D. Y. Kim;J. B. Kim;S. H. Kim;Y. J. Kim;K. Kinoshita;P. Kodyš;S. Korpar;D. Kotchetkov;P. Križan;P. Krokovny;T. Kuhr;R. Kulasiri;R. Kumar;A. Kuzmin;Y.-J. Kwon;J. S. Lange;I. S. Lee;C. H. Li;L. Li;L. Li Gioi;J. Libby;D. Liventsev;M. Lubej;T. Luo;M. Masuda;T. Matsuda;M. Merola;K. Miyabayashi;H. Miyata;R. Mizuk;G. B. Mohanty;H. K. Moon;T. Mori;R. Mussa;E. Nakano;M. Nakao;T. Nanut;K. J. Nath;Z. Natkaniec;M. Nayak;M. Niiyama;N. K. Nisar;S. Nishida;S. Ogawa;S. Okuno;H. Ono;P. Pakhlov;G. Pakhlova;B. Pal;C.-S. Park;H. Park;S. Paul;T. K. Pedlar;R. Pestotnik;L. E. Piilonen;M. Ritter;A. Rostomyan;M. Rozanska;Y. Sakai;M. Salehi;S. Sandilya;Y. Sato;V. Savinov;O. Schneider;G. Schnell;C. Schwanda;Y. Seino;K. Senyo;M. E. Sevior;V. Shebalin;C. P. Shen;T.-A. Shibata;J.-G. Shiu;F. Simon;A. Sokolov;E. Solovieva;M. Starič;J. F. Strube;J. Stypula;M. Sumihama;K. Sumisawa;T. Sumiyoshi;M. Takizawa;U. Tamponi;K. Tanida;F. Tenchini;K. Trabelsi;M. Uchida;S. Uehara;T. Uglov;Y. Unno;S. Uno;P. Urquijo;C. Van Hulse;G. Varner;V. Vorobyev;C. H. Wang;M.-Z. Wang;P. Wang;M. Watanabe;S. Watanuki;E. Widmann;E. Won;Y. Yamashita;H. Ye;J. Yelton;C. Z. Yuan;Y. Yusa;Z. P. Zhang;V. Zhilich;V. Zhukova;V. Zhulanov;A. Zupanc;The Belle Collaboration;
Journal	physical review letters
Year	2018
DOI	10.1103/physrevlett.121.031801 Searching for DOI...
URL	https://sciprofiles.com/publication/view/a6eaed3120af3655a7e036eaef8b770d https://doi.org/10.1103/physrevlett.121.031801
Keywords	topology branching confidence resonance decay neutrino belle kekb

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