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Measurement of b quark fragmentation fractions in the production of strange and light B mesons in pp¯ collisions at s=1.8TeV

F. Abe17, H. Akimoto39, A. Akopian31, M. G. Albrow7, S. R. Amendolia27, D. Amidei20, J. Antos33, S. Aota37, G. Apollinari31 et al. (CDF Collaboration)

G. Apollinari31, T. Arisawa39, T. Asakawa37, W. Ashmanskas5, M. Atac7, P. Azzi-Bacchetta25, N. Bacchetta25, S. Bagdasarov31, M. W. Bailey22, P. de Barbaro30, A. Barbaro-Galtieri18, V. E. Barnes29, B. A. Barnett15, M. Barone9, G. Bauer19, T. Baumann11, F. Bedeschi27, S. Behrends3, S. Belforte27, G. Bellettini27, J. Bellinger40, D. Benjamin6, J. Bensinger3, A. Beretvas7, J. P. Berge7, J. Berryhill5, S. Bertolucci9, S. Bettelli27, B. Bevensee26, A. Bhatti31, K. Biery7, C. Bigongiari27, M. Binkley7, D. Bisello25, R. E. Blair1, C. Blocker3, K. Bloom20, S. Blusk30, A. Bodek30, W. Bokhari26, G. Bolla29, Y. Bonushkin4, D. Bortoletto29, J. Boudreau28, A. Brandl22, L. Breccia2, C. Bromberg21, N. Bruner22, R. Brunetti2, E. Buckley-Geer7, H. S. Budd30, K. Burkett11, G. Busetto25, A. Byon-Wagner7, K. L. Byrum1, M. Campbell20, A. Caner27, W. Carithers18, D. Carlsmith40, J. Cassada30, A. Castro25, D. Cauz36, A. Cerri27, P. S. Chang33, P. T. Chang33, H. Y. Chao33, J. Chapman20, M.-T. Cheng33, M. Chertok34, G. Chiarelli27, C. N. Chiou33, F. Chlebana7, L. Christofek13, M. L. Chu33, S. Cihangir7, A. G. Clark10, M. Cobal27, E. Cocca27, M. Contreras5, J. Conway32, J. Cooper7, M. Cordelli9, D. Costanzo27, C. Couyoumtzelis10, D. Cronin-Hennessy6, R. Cropp14, R. Culbertson5, D. Dagenhart38, T. Daniels19, F. DeJongh7, S. Dell’Agnello9, M. Dell’Orso27, R. Demina7, L. Demortier31, M. Deninno2, P. F. Derwent7, T. Devlin32, J. R. Dittmann6, S. Donati27, J. Done34, T. Dorigo25, N. Eddy13, K. Einsweiler18, J. E. Elias7, R. Ely18, E. Engels, Jr.28, W. Erdmann7, D. Errede13, S. Errede13, Q. Fan30, R. G. Feild41, Z. Feng15, C. Ferretti27, I. Fiori2, B. Flaugher7, G. W. Foster7, M. Franklin11, J. Freeman7, J. Friedman19, Y. Fukui17, S. Gadomski14, S. Galeotti27, M. Gallinaro26, O. Ganel35, M. Garcia-Sciveres18, A. F. Garfinkel29, C. Gay41, S. Geer7, D. W. Gerdes20, P. Giannetti27, N. Giokaris31, P. Giromini9, G. Giusti27, M. Gold22, A. Gordon11, A. T. Goshaw6, Y. Gotra28, K. Goulianos31, H. Grassmann36, C. Green29, L. Groer32, C. Grosso-Pilcher5, G. Guillian20, J. Guimaraes da Costa15, R. S. Guo33, C. Haber18, E. Hafen19, S. R. Hahn7, R. Hamilton11, T. Handa12, R. Handler40, W. Hao35, F. Happacher9, K. Hara37, A. D. Hardman29, R. M. Harris7, F. Hartmann16, J. Hauser4, E. Hayashi37, J. Heinrich26, A. Heiss16, B. Hinrichsen14, K. D. Hoffman29, C. Holck26, R. Hollebeek26, L. Holloway13, Z. Huang20, B. T. Huffman28, R. Hughes23, J. Huston21, J. Huth11, H. Ikeda37, M. Incagli27, J. Incandela7, G. Introzzi27, J. Iwai39, Y. Iwata12, E. James20, H. Jensen7, U. Joshi7, E. Kajfasz25, H. Kambara10, T. Kamon34, T. Kaneko37, K. Karr38, H. Kasha41, Y. Kato24, T. A. Keaffaber29, K. Kelley19, M. Kelly20, R. D. Kennedy7, R. Kephart7, D. Kestenbaum11, D. Khazins6, T. Kikuchi37, M. Kirk3, B. J. Kim27, H. S. Kim14, S. H. Kim37, Y. K. Kim18, L. Kirsch3, S. Klimenko8, D. Knoblauch16, P. Koehn23, A. Köngeter16, K. Kondo37, J. Konigsberg8, K. Kordas14, A. Korytov8, E. Kovacs1, W. Kowald6, J. Kroll26, M. Kruse30, S. E. Kuhlmann1, E. Kuns32, K. Kurino12, T. Kuwabara37, A. T. Laasanen29, S. Lami27, S. Lammel7, J. I. Lamoureux3, M. Lancaster18, M. Lanzoni27, G. Latino27, T. LeCompte1, S. Leone27, J. D. Lewis7, M. Lindgren4, T. M. Liss13, J. B. Liu30, Y. C. Liu33, N. Lockyer26, O. Long26, M. Loreti25, D. Lucchesi27, P. Lukens7, S. Lusin40, J. Lys18, K. Maeshima7, P. Maksimovic11, M. Mangano27, M. Mariotti25, J. P. Marriner7, G. Martignon25, A. Martin41, J. A. J. Matthews22, P. Mazzanti2, K. McFarland30, P. McIntyre34, P. Melese31, M. Menguzzato25, A. Menzione27, E. Meschi27, S. Metzler26, C. Miao20, T. Miao7, G. Michail11, R. Miller21, H. Minato37, S. Miscetti9, M. Mishina17, S. Miyashita37, N. Moggi27, E. Moore22, Y. Morita17, A. Mukherjee7, T. Muller16, A. Munar27, P. Murat27, S. Murgia21, M. Musy36, H. Nakada37, T. Nakaya5, I. Nakano12, C. Nelson7, D. Neuberger16, C. Newman-Holmes7, C.-Y. P. Ngan19, H. Niu3, L. Nodulman1, A. Nomerotski8, S. H. Oh6, T. Ohmoto12, T. Ohsugi12, R. Oishi37, M. Okabe37, T. Okusawa24, J. Olsen40, C. Pagliarone27, R. Paoletti27, V. Papadimitriou35, S. P. Pappas41, N. Parashar27, A. Parri9, D. Partos3, J. Patrick7, G. Pauletta36, M. Paulini18, A. Perazzo27, L. Pescara25, M. D. Peters18, T. J. Phillips6, G. Piacentino27, M. Pillai30, K. T. Pitts7, R. Plunkett7, A. Pompos29, L. Pondrom40, J. Proudfoot1, F. Ptohos11, G. Punzi27, K. Ragan14, D. Reher18, A. Ribon25, F. Rimondi2, L. Ristori27, W. J. Robertson6, A. Robinson14, T. Rodrigo27, S. Rolli38, L. Rosenson19, R. Roser7, T. Saab14, W. K. Sakumoto30, D. Saltzberg4, A. Sansoni9, L. Santi36, H. Sato37, P. Schlabach7, E. E. Schmidt7, M. P. Schmidt41, A. Scott4, A. Scribano27, S. Segler7, S. Seidel22, Y. Seiya37, F. Semeria2, T. Shah19, M. D. Shapiro18, N. M. Shaw29, P. F. Shepard28, T. Shibayama37, M. Shimojima37, M. Shochet5, J. Siegrist18, A. Sill35, P. Sinervo14, P. Singh13, K. Sliwa38, C. Smith15, F. D. Snider7, J. Spalding7, T. Speer10, P. Sphicas19, F. Spinella27, M. Spiropulu11, L. Spiegel7, L. Stanco25, J. Steele40, A. Stefanini27, R. Ströhmer7,*, J. Strologas13, F. Strumia10, D. Stuart7, K. Sumorok19, J. Suzuki37, T. Suzuki37, T. Takahashi24, T. Takano24, R. Takashima12, K. Takikawa37, M. Tanaka37, B. Tannenbaum4, F. Tartarelli27, W. Taylor14, M. Tecchio20, P. K. Teng33, Y. Teramoto24, K. Terashi37, S. Tether19, D. Theriot7, T. L. Thomas22, R. Thurman-Keup1, M. Timko38, P. Tipton30, A. Titov31, S. Tkaczyk7, D. Toback5, K. Tollefson30, A. Tollestrup7, H. Toyoda24, W. Trischuk14, J. F. de Troconiz11, S. Truitt20, J. Tseng19, N. Turini27, T. Uchida37, F. Ukegawa26, J. Valls32, S. C. van den Brink15, S. Vejcik, III7, G. Velev27, R. Vidal7, R. Vilar7,*, I. Vologouev18, D. Vucinic19, R. G. Wagner1, R. L. Wagner7, J. Wahl5, N. B. Wallace27, A. M. Walsh32, C. Wang6, C. H. Wang33, M. J. Wang33, A. Warburton14, T. Watanabe37, T. Watts32, R. Webb34, C. Wei6, H. Wenzel16, W. C. Wester, III7, A. B. Wicklund1, E. Wicklund7, R. Wilkinson26, H. H. Williams26, P. Wilson7, B. L. Winer23, D. Winn20, D. Wolinski20, J. Wolinski21, S. Worm22, X. Wu10, J. Wyss27, A. Yagil7, W. Yao18, K. Yasuoka37, G. P. Yeh7, P. Yeh33, J. Yoh7, C. Yosef21, T. Yoshida24, I. Yu7, A. Zanetti36, F. Zetti27, and S. Zucchelli2 (CDF Collaboration)

  • 1Argonne National Laboratory, Argonne, Illinois 60439
  • 2Istituto Nazionale di Fisica Nucleare, University of Bologna, I-40127 Bologna, Italy
  • 3Brandeis University, Waltham, Massachusetts 02254
  • 4University of California at Los Angeles, Los Angeles, California 90024
  • 5University of Chicago, Chicago, Illinois 60637
  • 6Duke University, Durham, North Carolina 27708
  • 7Fermi National Accelerator Laboratory, Batavia, Illinois 60510
  • 8University of Florida, Gainesville, Florida 32611
  • 9Laboratori Nazionali di Frascati, Istituto Nazionale di Fisica Nucleare, I-00044 Frascati, Italy
  • 10University of Geneva, CH-1211 Geneva 4, Switzerland
  • 11Harvard University, Cambridge, Massachusetts 02138
  • 12Hiroshima University, Higashi-Hiroshima 724, Japan
  • 13University of Illinois, Urbana, Illinois 61801
  • 14Institute of Particle Physics, McGill University, Montreal, Canada H3A 2T8University of Toronto, Toronto, Canada M5S 1A7
  • 15The Johns Hopkins University, Baltimore, Maryland 21218
  • 16Institut für Experimentelle Kernphysik, Universität Karlsruhe, D-76128 Karlsruhe, Germany
  • 17National Laboratory for High Energy Physics (KEK), Tsukuba, Ibaraki 305, Japan
  • 18Ernest Orlando Lawrence Berkeley National Laboratory, Berkeley, California 94720
  • 19Massachusetts Institute of Technology, Cambridge, Massachusetts 02139
  • 20University of Michigan, Ann Arbor, Michigan 48109
  • 21Michigan State University, East Lansing, Michigan 48824
  • 22University of New Mexico, Albuquerque, New Mexico 87131
  • 23The Ohio State University, Columbus, Ohio 43210
  • 24Osaka City University, Osaka 588, Japan
  • 25Universita di Padova, Istituto Nazionale di Fisica Nucleare, Sezione di Padova, I-35131 Padova, Italy
  • 26University of Pennsylvania, Philadelphia, Pennsylvania 19104
  • 27Istituto Nazionale di Fisica Nucleare, University and Scuola Normale Superiore of Pisa, I-56100 Pisa, Italy
  • 28University of Pittsburgh, Pittsburgh, Pennsylvania 15260
  • 29Purdue University, West Lafayette, Indiana 47907
  • 30University of Rochester, Rochester, New York 14627
  • 31Rockefeller University, New York, New York 10021
  • 32Rutgers University, Piscataway, New Jersey 08855
  • 33Academia Sinica, Taipei, Taiwan 11530, Republic of China
  • 34Texas A&M University, College Station, Texas 77843
  • 35Texas Tech University, Lubbock, Texas 79409
  • 36Istituto Nazionale di Fisica Nucleare, University of Trieste/Udine, I-34012 Trieste, Italy
  • 37University of Tsukuba, Tsukuba, Ibaraki 305, Japan
  • 38Tufts University, Medford, Massachusetts 02155
  • 39Waseda University, Tokyo 169, Japan
  • 40University of Wisconsin, Madison, Wisconsin 53706
  • 41Yale University, New Haven, Connecticut 06520

  • *Visitor.
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Phys. Rev. D 60, 092005 – Published 11 October, 1999

DOI: https://doi.org/10.1103/PhysRevD.60.092005

Abstract

A new technique to measure the ratio of b quark fragmentation fractions in pp¯ collisions is described. Using a 70−pb−1 sample of low-mass dimuon trigger data recorded with the Collider Detector at Fermilab, we identify B mesons by observing the double semileptonic decays b→cμX with c→sμX. By counting the numbers of K*(892)0, K*(892)+, and φ(1020) mesons produced in association with these muon pairs, we measure the ratio of strange to nonstrange B meson production to be fs/(fu+fd)=[21.0±3.6(stat)−3.0+3.8(syst)]%. This measurement is the most precise available from hadron collisions to date. Limits on the branching fractions of semileptonic charm meson decays with K1(1270), K1*(1410), and K2*(1430) mesons in the final state are also obtained.

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Phys. Rev. D 60, 092005– Published 11 October, 1999
  • Received 4 March 1999

© 1999 American Physical Society

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