Measurement of the Mass and Width of the Ds1(2536)+ Meson

J. P. Lees,V. Poireau,E. Prencipe,V. Tisserand,J. Garra Tico,E. Grauges,M. Martinelli, D. A. Milanes,A. Palano,M. Pappagallo,G. Eigen,B. Stugu,L. Sun,D. N. Brown,L. T. Kerth,Yu G. Kolomensky,G. Lynch,I. L. Osipenkov,H. Koch,T. Schroeder,D. J. Asgeirsson,C. Hearty,T. S. Mattison,J. A. McKenna, A. Khan,V. E. Blinov,A. R. Buzykaev,V. P. Druzhinin, V. B. Golubev,E. A. Kravchenko,A. P. Onuchin,S. I. Serednyakov,Yu I. Skovpen,E. P. Solodov,K. Yu. Todyshev,A. N. Yushkov,M. Bondioli,S. Curry,D. Kirkby,A. J. Lankford,M. Mandelkern,D. P. Stoker, H. Atmacan,J. W. Gary,F. Liu,O. Long,G. M. Vitug,C. Campagnari,T. M. Hong,D. Kovalskyi,J. D. Richman, C. A. West,A. M. Eisner,J. Kroseberg,W. S. Lockman,A. J. Martinez,T. Schalk,B. A. Schumm,A. Seiden, C. H. Cheng,D. A. Doll,B. Echenard,K. T. Flood,D. G. Hitlin,P. Ongmongkolkul,F. C. Porter,A. Y. Rakitin,R. Andreassen,M. S. Dubrovin,B. T. Meadows,M. D. Sokoloff,P. C. Bloom,W. T. Ford,A. Gaz,M. Nagel,U. Nauenberg,J. G. Smith, S. R. Wagner,R. Ayad,W. H. Toki,H. Jasper,A. Petzold,B. Spaan,M. J. Kobel,K. R. Schubert,R. Schwierz,D. Bernard,M. Verderi,P. J. Clark,S. Playfer,J. E. Watson,D. Bettoni,C. Bozzi,R. Calabrese,G. Cibinetto,E. Fioravanti,I. Garzia,E. Luppi,M. Munerato,M. Negrini,L. Piemontese,R. Baldini-Ferroli,A. Calcaterra,R. de Sangro,G. Finocchiaro,M. Nicolaci,S. Pacetti,P. Patteri,I. M. Peruzzi,M. Piccolo,M. Rama,A. Zallo,R. Contri,E. Guido,M. Lo Vetere,M. R. Monge,S. Passaggio,C. Patrignani,E. Robutti,B. Bhuyan,V. Prasad,C. L. Lee,M. Morii,A. J. Edwards,A. Adametz,J. Marks,U. Uwer,F. U. Bernlochner,M. Ebert,H. M. Lacker,T. Lueck,P. D. Dauncey,M. Tibbetts,P. K. Behera,U. Mallik,C. Chen,J. Cochran,H. B. Crawley,W. T. Meyer,S. Prell,E. I. Rosenberg,A. E. Rubin,A. V. Gritsan,Z. J. Guo,N. Arnaud,M. Davier,D. Derkach,J. Firmino da Costa,G. Grosdidier,F. Le Diberder,A. M. Lutz,B. Malaescu,A. Perez,P. Roudeau,M. H. Schune,A. Stocchi,L. Wang,G. Wormser,D. J. Lange,D. M. Wright,I. Bingham,C. A. Chavez,J. P. Coleman, J. R. Fry,E. Gabathuler,D. E. Hutchcroft,D. J. Payne,C. Touramanis,A. J. Bevan,F. Di Lodovico,R. Sacco,M. Sigamani,G. Cowan,S. Paramesvaran,A. C. Wren,C. L. Davis,A. G. Denig,M. Fritsch,W. Gradl,A. Hafner,K. E. Alwyn,D. Bailey, R. J. Barlow,G. Jackson,G. D. Lafferty,R. Cenci,B. Hamilton,A. Jawahery,D. A. Roberts,G. Simi,C. Dallapiccola,E. Salvati,R. Cowan,D. Dujmic,G. Sciolla,D. Lindemann,P. M. Patel,S. H. Robertson,M. Schram, P. Biassoni,A. Lazzaro,V. Lombardo,F. Palombo,S. Stracka,L. Cremaldi,R. Godang,R. Kroeger,P. Sonnek,D. J. Summers,X. Nguyen,P. Taras,G. De Nardo,D. Monorchio,G. Onorato,C. Sciacca,G. Raven,H. L. Snoek,C. P. Jessop, K. J. Knoepfel,J. M. LoSecco,W. F. Wang,L. A. Corwin,K. Honscheid,R. Kass,N. L. Blount,J. Brau,R. Frey,J. A. Kolb,R. Rahmat,N. B. Sinev,D. Strom,J. Strube,E. Torrence, G. Castelli,E. Feltresi,N. Gagliardi,M. Margoni,M. Morandin,M. Posocco,M. Rotondo,F. Simonetto,R. Stroili,E. Ben-Haim,M. Bomben,G. R. Bonneaud,H. Briand, G. Calderini,J. Chauveau,O. Hamon,Ph Leruste,G. Marchiori,J. Ocariz,S. Sitt,M. Biasini,E. Manoni,A. Rossi,C. Angelini,G. Batignani,S. Bettarini,M. Carpinelli,G. Casarosa,A. Cervelli,F. Forti,M. A. Giorgi,A. Lusiani,N. Neri,E. Paoloni,G. Rizzo,J. J. Walsh,D. Lopes Pegna,C. Lu,J. Olsen,A. J. S. Smith,A. V. Telnov,F. Anulli,G. Cavoto,R. Faccini,F. Ferrarotto,F. Ferroni,M. Gaspero, L. Li Gioi,M. A. Mazzoni,G. Piredda, C. Buenger,T. Hartmann,T. Leddig,H. Schroeder,R. Waldi,T. Adye,E. O. Olaiya,F. F. Wilson,S. Emery,G. Hamel de Monchenault,G. Vasseur,Ch Yeche,M. T. Allen,D. Aston,D. J. Bard,R. Bartoldus,J. F. Benitez,C. Cartaro,M. R. Convery,J. Dorfan,G. P. Dubois-Felsmann,W. Dunwoodie,R. C. Field,M. Franco Sevilla,B. G. Fulsom,A. M. Gabareen,M. T. Graham,P. Grenier,C. Hast,W. R. Innes,M. H. Kelsey,H. Kim,P. Kim,M. L. Kocian,D. W. G. S. Leith,P. Lewis,S. Li,B. Lindquist,S. Luitz,V. Luth,H. L. Lynch,D. B. MacFarlane,D. R. Muller,H. Neal,S. Nelson,C. P. O'Grady,I. Ofte,M. Perl,T. Pulliam,B. N. Ratcliff,A. Roodman,A. A. Salnikov,V. Santoro,R. H. Schindler,J. Schwiening,A. Snyder,D. Su,M. K. Sullivan,S. Sun,K. Suzuki,J. M. Thompson,J. Va'vra,A. P. Wagner,M. Weaver,W. J. Wisniewski,M. Wittgen, D. H. Wright,H. W. Wulsin,A. K. Yarritu,C. C. Young,V. Ziegler,X. R. Chen,W. Park,M. V. Purohit,R. M. White,J. R. Wilson,A. Randle-Conde,S. J. Sekula,M. Bellis,P. R. Burchat, T. S. Miyashita,M. S. Alam,J. A. Ernst,N. Guttman,A. Soffer,P. Lund,S. M. Spanier,R. Eckmann,J. L. Ritchie,A. M. Ruland, C. J. Schilling, R. F. Schwitters,B. C. Wray,J. M. Izen,X. C. Lou,F. Bianchi,D. Gamba,M. Pelliccioni,L. Lanceri,L. Vitale,N. Lopez-March,F. Martinez-Vidal,A. Oyanguren,H. Ahmed,J. Albert,Sw Banerjee,H. H. F. Choi,K. Hamano,G. J. King,R. Kowalewski,M. J. Lewczuk,C. Lindsay,I. M. Nugent,J. M. Roney, R. J. Sobie,T. J. Gershon,P. F. Harrison,T. E. Latham, E. M. T. Puccio,H. R. Band,S. Dasu,Y. Pan,R. Prepost,C. O. Vuosalo,S. L. Wu

Physical review D Particles, fields, gravitation, and cosmology/Physical review D, Particles, fields, gravitation, and cosmology（2011）

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摘要

The decay width and mass of the Ds1(2536)+ meson are measured via the decay channel Ds1+ -> D*+KS0 using 385 fb^-1 of data recorded with the BABAR detector in the vicinity of the Y(4S) resonance at the PEP-II asymmetric-energy electron-positron collider. The result for the decay width is 0.92 +- 0.03 (stat) +- 0.04 (syst) MeV. For the mass, a value of 2535.08 +- 0.01 +- 0.15 MeV/c^2 is obtained. The mass difference between the Ds1+ and the D*+ is measured to be 524.83 +- 0.01 +- 0.04 MeV/c^2, representing a significant improvement compared to the current world average. The unnatural spin-parity assignment for the Ds1+ meson is confirmed.

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