Measurement of the D∗− polarization in the decay B0 → D∗−τ+ντ
A. Abdesselam,I. Adachi,K. Adamczyk,J.K. Ahn,H. Aihara,S. Al Said,K. Arinstein,Y. Arita,D.M. Asner,H. Atmacan,V. Aulchenko,T. Aushev,R. Ayad,T. Aziz,V. Babu,I. Badhrees,S. Bahinipati,A.M. Bakich,Y. Ban,V. Bansal,E. Barberio,M. Barrett,W. Bartel,P. Behera,C. Beleño,K. Belous,M. Berger,F. Bernlochner,D. Besson,V. Bhardwaj,B. Bhuyan,T. Bilka,J. Biswal,T. Bloomfield,A. Bobrov,A. Bondar,G. Bonvicini,A. Bozek,M. Bračko,N. Braun,F. Breibeck,T.E. Browder,M. Campajola,L. Cao,G. Caria,D. Červenkov,M.-C. Chang,P. Chang,Y. Chao,R. Cheaib,V. Chekelian,A. Chen,K.-F. Chen,B.G. Cheon,K. Chilikin,R. Chistov,H.E. Cho,K. Cho,V. Chobanova,S.-K. Choi,Y. Choi,S. Choudhury,D. Cinabro,J. Crnkovic,S. Cunliffe,T. Czank,M. Danilov,N. Dash,S. Di Carlo,J. Dingfelder,Z. Doležal,T.V. Dong,D. Dossett,Z. Drásal,A. Drutskoy,S. Dubey,D. Dutta,S. Eidelman,D. Epifanov,J.E. Fast,M. Feindt,T. Ferber,A. Frey,O. Frost,B.G. Fulsom,R. Garg,V. Gaur,N. Gabyshev,A. Garmash,M. Gelb,J. Gemmler,D. Getzkow,F. Giordano,A. Giri,P. Goldenzweig,B. Golob,D. Greenwald,M.G. Perdekamp,J. Grygier,O. Grzymkowska,Y. Guan,E. Guido,H. Guo,J. Haba,P. Hamer,K. Hara,T. Hara,Y. Hasegawa,J. Hasenbusch,K. Hayasaka,H. Hayashii,X.H. He,M. Heck,M.T. Hedges,D. Heffernan,M. Heider,A. Heller,T. Higuchi,S. Hirose,T. Horiguchi,Y. Hoshi,K. Hoshina,W.-S. Hou,Y.B. Hsiung,C.-L. Hsu,K. Huang,M. Huschle,Y. Igarashi,T. Iijima,M. Imamura,K. Inami,G. Inguglia,A. Ishikawa,K. Itagaki,R. Itoh,M. Iwasaki,Y. Iwasaki,S. Iwata,W.W. Jacobs,I. Jaegle,H.B. Jeon,S. Jia,Y. Jin,D. Joffe,M. Jones,C.W. Joo,K.K. Joo,T. Julius,J. Kahn,H. Kakuno,A.B. Kaliyar,J.H. Kang,K.H. Kang,P. Kapusta,G. Karyan,S.U. Kataoka,E. Kato,Y. Kato,P. Katrenko,H. Kawai,T. Kawasaki,T. Keck,H. Kichimi,C. Kiesling,B.H. Kim,C.H. Kim,D.Y. Kim,H.J. Kim,J.B. Kim,K.T. Kim,S.H. Kim,S.K. Kim,Y.J. Kim,T. Kimmel,H. Kindo,K. Kinoshita,C. Kleinwort,J. Klucar,N. Kobayashi,P. Kodyš,Y. Koga,T. Konno,S. Korpar,D. Kotchetkov,R.T. Kouzes,P. Križan,R. Kroeger,J.-F. Krohn,P. Krokovny,B. Kronenbitter,T. Kuhr,R. Kulasiri,R. Kumar,T. Kumita,E. Kurihara,Y. Kuroki,A. Kuzmin,P. Kvasnička,Y.-J. Kwon,Y.-T. Lai,K. Lalwani,J.S. Lange,I.S. Lee,J.K. Lee,J.Y. Lee, S.C. Lee,M. Leitgab,R. Leitner,D. Levit,P. Lewis,C.H. Li,H. Li,L.K. Li,Y. Li, Y.B. Li,L. Li Gioi,J. Libby,K. Lieret,A. Limosani,Z. Liptak,C. Liu,Y. Liu,D. Liventsev,A. Loos,R. Louvot,P.-C. Lu,M. Lubej,T. Luo,J. MacNaughton,M. Masuda,T. Matsuda,D. Matvienko,J.T. McNeil,M. Merola,F. Metzner,Y. Mikami,K. Miyabayashi,Y. Miyachi,H. Miyake,H. Miyata,Y. Miyazaki,R. Mizuk,G.B. Mohanty,S. Mohanty,H.K. Moon,T.J. Moon,T. Mori,T. Morii,H.-G. Moser,M. Mrvar,T. Müller,N. Muramatsu,R. Mussa,Y. Nagasaka,Y. Nakahama,I. Nakamura,K.R. Nakamura,E. Nakano,H. Nakano,T. Nakano,M. Nakao,H. Nakayama,H. Nakazawa,T. Nanut,K.J. Nath,Z. Natkaniec,M. Nayak,K. Neichi,C. Ng,C. Niebuhr,M. Niiyama,N.K. Nisar,S. Nishida,K. Nishimura,O. Nitoh,A. Ogawa,K. Ogawa,S. Ogawa,T. Ohshima,S. Okuno,S.L. Olsen,H. Ono,Y. Ono,Y. Onuki,W. Ostrowicz,C. Oswald,H. Ozaki,P. Pakhlov,G. Pakhlova,B. Pal,E. Panzenböck,S. Pardi,C.-S. Park,C.W. Park,H. Park,K.S. Park,S.-H. Park,S. Patra,S. Paul,I. Pavelkin,T.K. Pedlar,T. Peng,L. Pesántez,R. Pestotnik,M. Peters,L.E. Piilonen,V. Popov,K. Prasanth,E. Prencipe,M. Prim,K. Prothmann,M.V. Purohit,A. Rabusov,J. Rauch,B. Reisert,P.K. Resmi,E. Ribežl,M. Ritter,J. Rorie,A. Rostomyan,M. Rozanska,S. Rummel,G. Russo,D. Sahoo,H. Sahoo,T. Saito,Y. Sakai,M. Salehi,S. Sandilya,D. Santel,L. Santelj,T. Sanuki,J. Sasaki,N. Sasao,Y. Sato,V. Savinov,T. Schlüter,O. Schneider,G. Schnell,P. Schönmeier,M. Schram,J. Schueler,C. Schwanda,A.J. Schwartz,B. Schwenker,R. Seidl,Y. Seino,D. Semmler,K. Senyo,O. Seon,I.S. Seong,M.E. Sevior,L. Shang,M. Shapkin,V. Shebalin,C.P. Shen,T.-A. Shibata,H. Shibuya,S. Shinomiya,J.-G. Shiu,B. Shwartz,A. Sibidanov,F. Simon,J.B. Singh,R. Sinha,K. Smith,A. Sokolov,Y. Soloviev,E. Solovieva,S. Stanič,M. Starič,M. Steder,Z. Stottler,J.F. Strube,J. Stypula,S. Sugihara,A. Sugiyama,M. Sumihama,K. Sumisawa,T. Sumiyoshi,W. Sutcliffe,K. Suzuki,S. Suzuki,S.Y. Suzuki,Z. Suzuki,H. Takeichi,M. Takizawa,U. Tamponi,M. Tanaka,S. Tanaka,K. Tanida,N. Taniguchi,Y. Tao,G.N. Taylor,F. Tenchini,Y. Teramoto,K. Trabelsi,T. Tsuboyama,M. Uchida,T. Uchida,I. Ueda,S. Uehara,T. Uglov,Y. Unno,S. Uno,P. Urquijo,Y. Ushiroda,Y. Usov,S.E. Vahsen,C. Van Hulse,R. Van Tonder,P. Vanhoefer,G. Varner,K.E. Varvell,K. Vervink,A. Vinokurova,V. Vorobyev,A. Vossen,M.N. Wagner,E. Waheed,B. Wang,C.H. Wang,M.-Z. Wang,P. Wang,X.L. Wang,M. Watanabe,Y. Watanabe,S. Watanuki,R. Wedd,S. Wehle,E. Widmann,J. Wiechczynski,K.M. Williams,E. Won,B.D. Yabsley,S. Yamada,H. Yamamoto,Y. Yamashita,S.B. Yang,S. Yashchenko,H. Ye,J. Yelton,J.H. Yin,Y. Yook,C.Z. Yuan,Y. Yusa,S. Zakharov,C.C. Zhang,J. Zhang,L.M. Zhang,Z.P. Zhang,L. Zhao,V. Zhilich,V. Zhukova,V. Zhulanov,T. Zivko,A. Zupanc,N. Zwahlen
user-5f8411ab4c775e9685ff56d3（2018）
Cited 27|Views18
Abstract
We report the first measurement of the D∗− meson polarization in the decay B0 → D∗−τ+ντ using the full data sample of 772×106 BB¯ pairs recorded with the Belle detector at the KEKB electron-positron collider. Our result, FLD∗ = 0.60 ±0.08(stat) ±0.04(sys), where FLD∗ denotes the D∗− meson longitudinal polarization fraction, agrees within about 1.7 standard deviations of the standard model prediction.
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Key words
KEKB,Meson,Polarization (waves),Particle physics,Physics,Detector,Standard deviation,Full data
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