Phys. Rev. Lett.
71,
2537–2541
(1993)
Inclusive χc and b-quark production in p¯p collisions at √s =1.8 TeV
F. Abe et al.
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F. Abe, M. Albrow, D. Amidei, C. Anway-Wiese, G. Apollinari, M. Atac, P. Auchincloss, P. Azzi, N. Bacchetta, A. R. Baden, W. Badgett, M. W. Bailey, A. Bamberger, P. de Barbaro, A. Barbaro-Galtieri, V. E. Barnes, B. A. Barnett, G. Bauer, T. Baumann, F. Bedeschi, S. Behrends, S. Belforte, G. Bellettini, J. Bellinger, D. Benjamin, J. Benlloch, J. Bensinger, A. Beretvas, J. P. Berge, S. Bertolucci, K. Biery, S. Bhadra, M. Binkley, D. Bisello, R. Blair, C. Blocker, A. Bodek, V. Bolognesi, A. W. Booth, C. Boswell, G. Brandenburg, D. Brown, E. Buckley-Geer, H. S. Budd, G. Busetto, A. Byon-Wagner, K. L. Byrum, C. Campagnari, M. Campbell, A. Caner, R. Carey, W. Carithers, D. Carlsmith, J. T. Carroll, R. Cashmore, A. Castro, Y. Cen, F. Cervelli, K. Chadwick, J. Chapman, G. Chiarelli, W. Chinowsky, S. Cihangir, A. G. Clark, M. Cobal, D. Connor, M. Contreras, J. Cooper, M. Cordelli, D. Crane, J. D. Cunningham, C. Day, F. DeJongh, S. Dell’Agnello, M. Dell’Orso, L. Demortier, B. Denby, P. F. Derwent, T. Devlin, M. Dickson, R. B. Drucker, A. Dunn, K. Einsweiler, J. E. Elias, R. Ely, S. Eno, S. Errede, A. Etchegoyen, B. Farhat, M. Frautschi, G. J. Feldman, B. Flaugher, G. W. Foster, M. Franklin, J. Freeman, H. Frisch, T. Fuess, Y. Fukui, A. F. Garfinkel, A. Gauthier, S. Geer, D. W. Gerdes, P. Giannetti, N. Giokaris, P. Giromini, L. Gladney, M. Gold, J. Gonzalez, K. Goulianos, H. Grassmann, G. M. Grieco, R. Grindley, C. Grosso-Pilcher, C. Haber, S. R. Hahn, R. Handler, K. Hara, B. Harral, R. M. Harris, S. A. Hauger, J. Hauser, C. Hawk, T. Hessing, R. Hollebeek, L. Holloway, A. Hölscher, S. Hong, G. Houk, P. Hu, B. Hubbard, B. T. Huffman, R. Hughes, P. Hurst, J. Huth, J. Hylen, M. Incagli, T. Ino, H. Iso, H. Jensen, C. P. Jessop, R. P. Johnson, U. Joshi, R. W. Kadel, T. Kamon, S. Kanda, D. A. Kardelis, I. Karliner, E. Kearns, L. Keeble, R. Kephart, P. Kesten, R. M. Keup, H. Keutelian, D. Kim, S. B. Kim, S. H. Kim, Y. K. Kim, L. Kirsch, K. Kondo, J. Konigsberg, K. Kordas, E. Kovacs, M. Krasberg, S. E. Kuhlmann, E. Kuns, A. T. Laasanen, S. Lammel, J. I. Lamoureux, S. Leone, J. D. Lewis, W. Li, P. Limon, M. Lindgren, T. M. Liss, N. Lockyer, M. Loreti, E. H. Low, D. Lucchesi, C. B. Luchini, P. Lukens, P. Maas, K. Maeshima, M. Mangano, J. P. Marriner, M. Mariotti, R. Markeloff, L. A. Markosky, J. A. J. Matthews, R. Mattingly, P. McIntyre, A. Menzione, E. Meschi, T. Meyer, S. Mikamo, M. Miller, T. Mimashi, S. Miscetti, M. Mishina, S. Miyashita, Y. Morita, S. Moulding, J. Mueller, A. Mukherjee, T. Muller, L. F. Nakae, I. Nakano, C. Nelson, D. Neuberger, C. Newman-Holmes, J. S. T. Ng, M. Ninomiya, L. Nodulman, S. Ogawa, R. Paoletti, V. Papadimitriou, A. Para, E. Pare, S. Park, J. Patrick, G. Pauletta, L. Pescara, T. J. Phillips, A. G. Piacentino, R. Plunkett, L. Pondrom, J. Proudfoot, F. Ptohos, G. Punzi, D. Quarrie, K. Ragan, G. Redlinger, J. Rhoades, M. Roach, F. Rimondi, L. Ristori, W. J. Robertson, T. Rodrigo, T. Rohaly, A. Roodman, W. K. Sakumoto, A. Sansoni, R. D. Sard, A. Savoy-Navarro, V. Scarpine, P. Schlabach, E. E. Schmidt, O. Schneider, M. H. Schub, R. Schwitters, G. Sciacca, A. Scribano, S. Segler, S. Seidel, Y. Seiya, G. Sganos, M. Shapiro, N. M. Shaw, M. Sheaff, M. Shochet, J. Siegrist, A. Sill, P. Sinervo, J. Skarha, K. Sliwa, D. A. Smith, F. D. Snider, L. Song, T. Song, M. Spahn, P. Sphicas, A. Spies, R. St. Denis, L. Stanco, A. Stefanini, G. Sullivan, K. Sumorok, R. L. Swartz, Jr., M. Takano, K. Takikawa, S. Tarem, F. Tartarelli, S. Tether, D. Theriot, M. Timko, P. Tipton, S. Tkaczyk, A. Tollestrup, J. Tonnison, W. Trischuk, Y. Tsay, J. Tseng, N. Turini, F. Ukegawa, D. Underwood, S. Vejcik, III, R. Vidal, R. G. Wagner, R. L. Wagner, N. Wainer, R. C. Walker, J. Walsh, A. Warburton, G. Watts, T. Watts, R. Webb, C. Wendt, H. Wenzel, W. C. Wester, III, T. Westhusing, S. N. White, A. B. Wicklund, E. Wicklund, H. H. Williams, B. L. Winer, J. Wolinski, D. Y. Wu, X. Wu, J. Wyss, A. Yagil, W. Yao, K. Yasuoka, Y. Ye, G. P. Yeh, J. Yoh, M. Yokoyama, J. C. Yun, A. Zanetti, F. Zetti, S. Zhang, W. Zhang, and S. Zucchelli
Argonne National Laboratory, Argonne, Illinois 60439
Brandeis University, Waltham, Massachusetts 02254
University of California at Los Angeles, Los Angeles, California 90024
University of Chicago, Chicago, Illinois 60637
Duke University, Durham, North Carolina 27706
Fermi National Accelerator Laboratory, Batavia, Illinois 60510
Laboratori Nazionali di Frascati, Istituto Nazionale di Fisica Nucleare, Frascati, Italy
Harvard University, Cambridge, Massachusetts 02138
University of Illinois at Urbana-Champaign Urbana, Illinois 61801
Institute of Particle Physics, McGill University, montreal, and University of Toronto, Toronto, Canada
The Johns Hopkins University, Baltimore, Maryland 21218
National Laboratory for High Energy Physics (KEK), Tsukuba, Ibaraki 305, Japan
Lawrence Berkeley Laboratory, Berkeley, California 94720
Massachusetts Institute of Technology, Cambridge, Massachusetts 02139
University of Michigan, Ann Arbor, Michigan 48109
University of New Mexico, Albuquerque, New Mexico 87131
Università di Padova, Istituto Nazionale di Fisica Nucleare, Sezione di Padova, I-35131 Padova, Italy
University of Pennsylvania, Philadelphia, Pennsylvania 19104
University of Pittsburgh, Pittsburgh, Pennsylvania 15260
Istituto Nazionale di Fisica Nucleare, University Scuola Normale Superiore of Pisa, I-56100 Pisa, Italy
Purdue University, West Lafayette, Indiana 47907
University of Rochester, Rochester, New York 14627
Rockefeller University, New York, New York 10021
Rutgers University, Piscataway, New Jersey 08854
Texas A&M University, College Station, Texas 77843
University of Tsukuba, Tsukuba, Ibaraki 305, Japan
Tufts University, Medford, Massachusetts 02155
University of Wisconsin(enMadison, Madison, Wisconsin 53706
Received 21 May 1993; published in the issue dated 18 October 1993
We report the full reconstruction of χc mesons through the decay chain χc→J/ψ γ, J/ψ→μ+μ-, using data obtained at the Collider Detector at Fermilab in 2.6±0.2 pb-1 of p¯p collisions at √s =1.8 TeV. This exclusive χc sample is used to measure the χc-meson production cross section times branching fractions. We obtain σ×B=3.2±0.4(stat)-1.1+1.2(syst) nb for χc mesons decaying to J/ψ with pT>6.0 GeV/c and pseudorapidity ‖η‖<0.5. From this and the inclusive J/ψ cross section we calculate the inclusive b-quark cross section to be 12.0±4.5 μb for pTb>8.5 GeV/c and ‖yb‖<1.
© 1993 The American Physical Society
URL:
http://link.aps.org/doi/10.1103/PhysRevLett.71.2537
DOI:
10.1103/PhysRevLett.71.2537
PACS:
13.85.Ni, 14.40.Gx, 14.80.Dq
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