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1. Measurement ofJ/ψandψ(2S)Polarization inpp¯Collisions at√s=1.8TeV

Author

W. Carithers, S. Murgia, A. Byon-Wagner, Tetsuo Arisawa, J. Berryhill, J. D. Lewis, A. Safonov, E. Scodellaro, P. Koehn, Kostantinos Kordas, R. E. Hughes, Chunhui Chen, Petar Maksimovic, Andrea Castro, D. Winn, X. Wu, S. Blusk, Jochen Jens Heinrich, Tong Gao, D. Khazins, N. Eddy, R. J. Hollebeek, J. Strologas, C. Smith, J. I. Lamoureux, James Bensinger, C. Holck, C. Pagliarone, K. Karr, Shin-Shan Yu, G. Velev, Sally Seidel, S. Galeotti, R. D. Kennedy, H. Sato, M. L. Chu, E. James, Jacobo Konigsberg, M. T. Cheng, J. Lys, J. Siegrist, Gino Bolla, Hajin Kim, M. Mishina, Mosè Mariotti, Y. Gotra, Fumihiko Ukegawa, Matthew Jones, James D. Olsen, A. Ribon, M. P. Schmidt, J. P. Berge, N. Lai, Kazuhiko Hara, Fedor Prokoshin, Yasuo Fukui, K. L. Byrum, A. Solodsky, P. Giromini, Anna Zanetti, H. Kasha, B. Hinrichsen, J. Wolinski, A. Nomerotski, A. Rakitine, P. Azzi-Bacchetta, Pierre Savard, Maxwell Chertok, D. Dagenhart, T. Kuwabara, P. De Barbara, Jane Nachtman, L. Christofek, J. Spalding, R. Roser, J.I. Friedman, C. Bromberg, J. G. Loken, T. Okusawa, P. Mazzanti, A. B. Wicklund, T. L. Watts, J. Wahl, A. Scribano, M. Mulhearn, W. Riegler, A. Tollestrup, Masaaki Tanaka, W. C. Wester, F. Strumia, J. Wyss, J. Done, F. DeJongh, A. Semenov, Stefano Belforte, S. E. Kuhlmann, P. Nicolaidi, T. Suzuki, J. Huston, E. E. Schmidt, G. Chiarelli, C. Ferretti, S. Lami, C. H. Wang, K. T. Pitts, T. Shah, Andrea Sansoni, J. Tseng, S. Donati, Joe Kroll, K. D. Hoffman, H. Toyoda, M. M. Deninno, D. Lucchesi, Henrik Jeldtoft Jensen, Jay Hauser, G. Chlachidze, Z. Yu, Marjorie Shapiro, P. Gatti, R. Cropp, Umesh Joshi, J. Cooper, J. Boudreau, K. Anikeev, A. Pompos, A. J. Slaughter, D. Errede, S. H. Kim, L. Ristori, F. Azfar, W-M. Yao, H. Minato, K. Kurino, Louis Lyons, A. Connolly, G. Piacentino, K. S. McFarland, S. Tether, F. Spinella, M. Gold, P. Schlabach, R. Kephart, T. Handa, E. Buckley-Geer, M. Binkley, Riccardo Paoletti, T. Asakawa, J. Cassada, W. Trischuk, M. Tecchio, A. Korn, Y. Kato, D. Neuberger, Beom Jun Kim, S.G. Klimenko, M. G. Albrow, J. Yoh, G. Guillian, Manfred Paulini, K. Tollefson, J. Guimaraes Da Costa, Y. Seiya, H. Nakada, M. Popovic, S. Miscetti, P. Sinervo, C. I. Ciobanu, H. Wenzel, N. Moggi, Frank Hartmann, David Saltzberg, S. Tkaczyk, Andrew Beretvas, Nicola Bacchetta, Catherine Newman-Holmes, J. N. Bellinger, G. Punzi, E. Engels, E. Kovacs, T. Ohmoto, Christoph Paus, J. Carlson, F. Bedeschi, David Stuart, S. C. van den Brink, Daniel P Cronin-Hennessy, Th. Müller, Alan Sill, Kenichi Hatakeyama, Yc Liu, R. G. Feild, M. Franklin, T. Speer, G. W. Foster, M. Musy, Yongsun Kim, S. R. Amendolia, K. Sliwa, S. Bailey, J. Steele, M. J. Wang, G. Bellettini, T. Miao, R. M. Haas, T. Affolder, M. Barone, J. S. Miller, Kevin Burkett, G. Martignon, M. Kelly, G. P. Yeh, P. Murat, Tony Liss, J. Valls, Andrey Korytov, W. K. Sakumoto, Wendy Taylor, J. A.J. Matthews, S. Wolinski, M. Cordelli, M. Brozovic, G. Busetto, Brian L Winer, L. Santi, R. L. Wagner, A. Barbaro-Galtieri, J. F. de Troconiz, P. Tamburello, Roger Moore, M. H. Kirby, D. Wolinski, Minu Kim, K. Kelley, S. Leone, G. Latino, D. Theriot, K. Goulianos, R. G. Wagner, R. Culbertson, N. B. Wallace, Stephan Lammel, Christina Mesropian, R. Oishi, R. S. Guo, B. Flaugher, P. F. Derwent, Paolo Calafiura, Teresa Rodrigo, K. Lee, T. J. Phillips, V. Glagolev, J. Mayer, N. S. Lockyer, Joel Goldstein, S. P. Pappas, Michael Schmitt, D. Vucinic, F. Semeria, J. C. Freeman, Hiroshi Ikeda, T. A. Keaffaber, Y. C. Chen, Roberto Rossin, H. S. Budd, J. Incandela, Y. Morita, M. Lancaster, M. Shimojima, Aw Chan, G. Bauer, A. D. Hardman, F. D. Snider, R. C. Webb, T. Shibayama, M. Loreti, I. Furie, A. Bodek, J. B. Liu, M. W. Bailey, R. J. Miller, J. Conway, S. Geer, J. Iwai, T. Kikuchi, S. Lusin, F. Happacher, P. T. Chang, J. Cranshaw, Igor Volobouev, P. Yeh, O. Pukhov, Dario Bisello, A. Bhatti, C. Yosef, A. Mukherjee, Alessandro Cerri, K. Ragan, G. Pope, K. Terashi, Nicola Turini, A. T. Laasanen, Lawrence Nodulman, E. Hafen, S. Wolbers, Duncan Carlsmith, P. Amaral, I. Fiori, A. W. Scott, D. W. Gerdes, B. A. Barnett, Giorgio Apollinari, F. Ptohos, S. Zucchelli, R. E. Blair, Andrea Bocci, A. Köngeter, F. Rimondi, Tommaso Dorigo, W. J. Robertson, Teruki Kamon, H. H. Williams, C. Grosso-Pilcher, G. Introzzi, A. Stefanini, T. Watanabe, D. Partos, Craig Blocker, R. Vilar, Kaori Maeshima, W. Bokhari, S. Vejcik, T. Takano, I.E. Chirikov-Zorin, M. Campbell, D. Waters, P. Giannetti, T. Vaiciulis, F. Zetti, M. Atac, Kevin Einsweiler, A. J. Martin, D. Reher, R. Handler, Q. Fan, L. Pondrom, E. Wicklund, James Proudfoot, Y. Bonusnkin, P. Wilson, M. Menguzzato, R. Vidal, J. E. Elias, S. Dell'Agnello, J. Budagov, H. Niu, N. Bruner, T. Devlin, T. Ohsugi, W. Orejudos, M. J. Shochet, Frank Chlebana, P. F. Shepard, A. Akopian, S. H. Oh, Maurice Garcia-Sciveres, A. Reichold, P. Lukens, T. Yoshida, M. Guenther, V. Papadimitriou, Daijin Kim, P. K. Teng, Itsuo Nakano, S. Segler, L. Groer, Alan Garfinkel, C. Green, P. McIntyre, C. Haber, Y. Iwata, Hiroto Kambara, G. Signorelli, Daniela Bortoletto, R. K. Plunkett, Maria Spiropulu, Kenneth Bloom, Matthew Herndon, A. Heiss, R. D. Field, A. Robinson, S. Rolli, Benjamin Kilminster, K. Takikawa, F. Palmonari, L. Malferrari, R. Thurman-Keup, Cyp Ngan, Barry Blumenfeld, S. Nahn, L. Pescara, E. Moore, A. Gordon, T. Nakaya, H. Akimoto, S. R. Hahn, L. Demortier, A. M. Lee, J. Antos, Konstanty Sumorok, Guenakh Mitselmakher, W. Hao, P. N. Singh, A. Brandl, L. Rosenson, John Huth, L. E. Kirsch, J. W. Chapman, R. Madrak, C. Nelson, Douglas Benjamin, R. Demina, Jay Dittmann, D. Cauz, Michele Gallinaro, A. G. Clark, C. R. Hall, Mark Kruse, Paul Tipton, B. Bevensee, S. Worm, D. Amidei, A. T. Goshaw, S. Errede, W. Ashmanskas, W. Erdmann, P. Sphicas, Virgil E Barnes, T. Kaneko, P. S. Chang, A. Menzione, M. Dell'Orso, R. Takashima, M. Lindgren, B. Tannenbaum, Thomas LeCompte, L. Holloway, J. Patrick, M. Mangano, A. M. Walsh, K. Kondo, A. Munar, G. Pauletta, I. Yu, Avraham Yagil, M. Kirk, E. McKigney, Leonard Spiegel, and Robert M Harris

Subjects
Physics, Meson, Astrophysics::High Energy Astrophysical Phenomena, Hadron, General Physics and Astronomy, Particle accelerator, Polarization (waves), law.invention, Nuclear physics, Angular distribution, law, High Energy Physics::Experiment, Nuclear Experiment, Collider Detector at Fermilab
Abstract

We have measured the polarization of J/psi and psi(2S) mesons produced in pp collisions at sqrt[s] = 1.8 TeV, using data collected at the Collider Detector at Fermilab during 1992-1995. The polarization of promptly produced J/psi [psi(2S)] mesons is isolated from those produced in B-hadron decay, and measured over the kinematic range 4 [5.5]

Published
2000

2. Measurement ofb-Quark Fragmentation Fractions inpp¯Collisions ats=1.8TeV

Author

Manfred Paulini, H. Nakada, G. Velev, M. Mangano, H. Sato, Yongsun Kim, Y. Bonushkin, R. Takashima, Y. C. Chen, T. Kuwabara, L. Santi, A. M. Walsh, C. H. Wang, P. Schlabach, M. Lindgren, B. Tannenbaum, J. Cassada, A. Cerri, Thomas LeCompte, A. Parri, L. Holloway, S. Tkaczyk, David Stuart, R. G. Feild, G. P. Yeh, Kenichi Hatakeyama, M. Franklin, Tony Liss, G. W. Foster, Luca Scodellaro, K. L. Byrum, S. Worm, M. Dell'Orso, Teresa Rodrigo, J. Patrick, T. L. Watts, P. Sphicas, S. E. Kuhlmann, P. Nicolaidi, T. J. Phillips, P. Giromini, Anna Zanetti, C. Smith, H. Kasha, B. Hinrichsen, Virgil E Barnes, F. Palmonari, Y. Morita, G. Chlachidze, Wendy Taylor, J. A.J. Matthews, T. Kaneko, C. Holck, E. James, E. S. Hafen, P. S. Chang, R. Kephart, J. Yoh, A. T. Goshaw, A. Menzione, F. Strumia, P. N. Singh, K. Kondo, A. Munar, R. Thurman-Keup, G. Pauletta, Cyp Ngan, S. Lami, T. Shah, Roger Moore, I. Yu, Andrea Sansoni, J. C. Freeman, P. Murat, C. I. Ciobanu, J. Wahl, S. Donati, S. Segler, Avraham Yagil, J. Wyss, G. Chiarelli, Yanwen Liu, E. McKigney, P. Lukens, I. Vologouev, L. Nodulman, Frank Hartmann, Alan Sill, Leonard Spiegel, J. Steele, Tomoko Yoshida, F. Ptohos, M. M. Deninno, P. Gatti, C. Pagliarone, W. Ashmanskas, Andrey Korytov, S. Galeotti, D. P. Benjamin, D. Errede, W. Carithers, S. Murgia, S. Nahn, Q. Fan, A. Tollestrup, Maria Spiropulu, J. Valls, Jane Nachtman, V. Papadimitriou, J. Strologas, B. S. Blusk, M. Tecchio, J. Guimaraes da Costa, D. Wolinski, K. Kelley, S. Leone, G. Bauer, Y. Kato, D. Neuberger, G. Guillian, A. D. Hardman, F. D. Snider, S. Errede, W. J. Robertson, S. Rolli, J. Cranshaw, K. T. Pitts, Hyun-Chul Kim, E. Moore, Catherine Newman-Holmes, M. P. Schmidt, Andrew Beretvas, S. Wolbers, J. Berryhill, H. Grassmann, H. S. Budd, A. Köngeter, J. Wolinski, Maxwell Chertok, T. Devlin, T. Speer, Barry Blumenfeld, A. Heiss, Joel Goldstein, D. W. Gerdes, B. A. Barnett, Giorgio Apollinari, T. Watanabe, Gino Bolla, Teruki Kamon, S. Truitt, M. Garcia-Sciveres, R. J. Miller, T. Shibayama, M. Loreti, W-M. Yao, A. Gordon, W. Bokhari, Craig Blocker, C. Mesropian, J. Lys, Kaori Maeshima, R. Roser, P. Azzi-Bacchetta, M. Mishina, C. Bromberg, L. Pescara, A. Nomerotski, Tong Gao, J. D. Lewis, A. Mukherjee, Marjorie Shapiro, A. Semenov, A. Caner, M. Kirk, J.I. Friedman, S. Lusin, F. Happacher, P. T. Chang, E. Meschi, W. Erdmann, M. Campbell, T. Nakaya, H. Akimoto, Dario Bisello, A. Bhatti, P. Wilson, A. Perazzo, J. F. de Troconiz, Matthew Jones, Andrea Bocci, A. J. Slaughter, E. Buckley-Geer, S. R. Hahn, K. Terashi, M. Menguzzato, Nicola Turini, A. T. Laasanen, P. Koehn, Kostantinos Kordas, Tommaso Dorigo, P. Giannetti, Y. Gotra, Fumihiko Ukegawa, H. H. Williams, G. Introzzi, Riccardo Paoletti, A. Stefanini, M. Cordelli, G. Busetto, Brian L Winer, A. B. Wicklund, James D. Olsen, T. Affolder, Hiroshi Ikeda, R. Vilar, R. G. Wagner, J. Spalding, R. Handler, A. Barbaro-Galtieri, P. Sinervo, R. E. Hughes, J. Antos, Y. Iwata, Chunhui Chen, Petar Maksimovic, Masaaki Tanaka, S. P. Pappas, F. Zetti, G. Signorelli, Y. Seiya, R. C. Webb, D. Amidei, M. Atac, Konstanty Sumorok, W. C. Wester, D. Vucinic, F. Semeria, Jay Hauser, Frank Chlebana, D. Reher, D. Winn, A. Akopian, T. A. Keaffaber, E. E. Schmidt, J. B. Liu, F. DeJongh, S. Dell'Agnello, J. Carlson, K. D. Hoffman, N. Moggi, Daniela Bortoletto, K. Ragan, J. Proudfoot, Jacobo Konigsberg, A. Connolly, S. C. van den Brink, K. Kurino, Jay Dittmann, J. Budagov, S. Bailey, M. T. Cheng, D. Cauz, P. Amaral, I. Fiori, A. W. Scott, A. Solodsky, D. Partos, T. Asakawa, H. Minato, H. Toyoda, C. Ferretti, M. Guenther, T. Handa, A. Robinson, B. Flaugher, S. Zucchelli, R. E. Blair, Michael Schmitt, J. Incandela, Michele Gallinaro, Stefano Belforte, F. Rimondi, R. Oishi, Henrik Jeldtoft Jensen, J. N. Bellinger, I.E. Chirikov-Zorin, K. Takikawa, T. Ohsugi, L. Ristori, H. Wenzel, D. Lucchesi, M. J. Shochet, L. Malferrari, Kevin Einsweiler, W. Trischuk, A. J. Martin, J. Conway, L. Demortier, M. W. Bailey, Nicola Bacchetta, A. M. Lee, G. Pope, Daniel P Cronin-Hennessy, F. Bedeschi, L. Pondrom, E. Wicklund, G. Punzi, W. Hao, M. Incagli, A. Brandl, A. G. Clark, John Huth, E. Engels, Ciro Bigongiari, M. Musy, J. S. Miller, Kevin Burkett, G. Latino, D. Theriot, Jochen Jens Heinrich, J. E. Elias, P. K. Teng, C. Green, S. Bertolucci, J. P. Berge, C. R. Hall, B. J. Kim, Mark Kruse, D. Knoblauch, M. Barone, Paul Tipton, Duncan Carlsmith, L. Christofek, B. Bevensee, Shin-Shan Yu, A. Ribon, G. Piacentino, M. Kelly, E. Cocca, T. Suzuki, A. Pompos, Pierre Savard, S. Miscetti, Stephan Lammel, T. Kikuchi, Marina Cobal, P. Yeh, G. Bellettini, G. Martignon, V. V. Glagolev, Hiroto Kambara, Kenneth Bloom, L. Rosenson, L. E. Kirsch, A. Byon-Wagner, Tetsuo Arisawa, N. Eddy, R. J. Hollebeek, J. I. Lamoureux, R. Vidal, H. Niu, Sally Seidel, Umesh Joshi, J. Cooper, R. D. Kennedy, N. Bruner, S. H. Kim, J. Siegrist, P. F. Shepard, S. H. Oh, D. Costanzo, W. Riegler, R. Madrak, C. Nelson, Th. Müller, S. R. Amendolia, K. Sliwa, S. Klimenko, R. Cropp, Itsuo Nakano, F. Spinella, M. Gold, J. R. Bensinger, L. Groer, N. Lai, Kazuhiko Hara, R. Demina, Alan Garfinkel, P. McIntyre, E. Kovacs, T. Ohmoto, M. L. Chu, Mosè Mariotti, R. L. Wagner, Fedor Prokoshin, K. Goulianos, Yasuo Fukui, W. K. Sakumoto, T. Okusawa, S. Geer, P. de Barbaro, P. Mazzanti, C. Grosso-Pilcher, J. Done, J. Huston, R. Culbertson, N. B. Wallace, A. Bodek, J. Iwai, C. Yosef, R. S. Guo, P. F. Derwent, M. Lancaster, Robert M Harris, Joe Kroll, R. K. Plunkett, K. S. McFarland, S. Tether, Andrea Castro, D. Khazins, K. Karr, K. Tollefson, A. Scribano, M. J. Wang, T. Miao, D. Dagenhart, Xin Wu, J. Tseng, M. Binkley, M. G. Albrow, N. S. Lockyer, J. Boudreau, Roberto Rossin, S. Gadomski, C. Miao, David Saltzberg, S. Vejcik, T. Takano, M. Shimojima, J. W. Chapman, Luca Stanco, C. Haber, and S. Cihangir

Subjects
Physics, Quark, 010308 nuclear & particles physics, Hadron, General Physics and Astronomy, Lambda, 01 natural sciences, Bottom quark, Silicon vertex detector, Baryon, Crystallography, Fragmentation (mass spectrometry), 0103 physical sciences, Atomic physics, 010306 general physics
Abstract

We have studied the production of B hadrons in 1.8-TeV pp(bar sign) collisions. We present measurements of the fragmentation fractions, f{sub u} , f{sub d} , f{sub s} , and f{sub baryon} , of produced b quarks that yield B{sup +} , B{sup 0} , B{sup 0}{sub s} , and {lambda}{sup 0}{sub b} hadrons. Reconstruction of five electron-charm final states yields f{sub s}/( f{sub u}+f{sub d})=0.213{+-}0.068 and f{sub baryon}/( f{sub u}+f{sub d})=0.118{+-}0.042 , assuming f{sub u}=f{sub d} . If all B hadrons produced in pp(bar sign) collisions cascade to one of these four hadrons, we determine f{sub u}=f{sub d}=0.375{+-}0.023 , f{sub s}=0.160{+-}0.044 , and f{sub baryon}=0.090{+-}0.029 . If we do not assume f{sub u}=f{sub d} , we find f{sub d}/f{sub u}=0.84{+-}0.16 . (c) 2000 The American Physical Society.

Published
2000

3. Search for New Particles Decaying tobb¯inpp¯Collisions at√s=1.8TeV

Author

G. Velev, S. Vejcik, A. Parri, D. Kestenbaum, M. Dell'Orso, T. Takano, P. Melese, T. Shibayama, M. Loreti, H. Sato, Stephan Lammel, M. Mangano, M. Mishina, S. Gadomski, C. Miao, S. Tkaczyk, David Stuart, T. Daniels, R. G. Feild, A. Barbaro-Galtieri, Y. Gotra, Maxwell Chertok, R. Ely, D. Vucinic, F. Semeria, T. Takahashi, J. W. Chapman, Luca Stanco, K. Terashi, G. P. Yeh, T. Kuwabara, A. J. Martin, Nicola Turini, A. T. Laasanen, Tony Liss, T. A. Keaffaber, S. Behrends, M. Shimojima, P. N. Singh, W. Carithers, S. Murgia, H. H. Williams, L. Pondrom, E. Wicklund, A. M. Walsh, A. B. Wicklund, R. Vidal, Andreas Warburton, K. Kurino, Teresa Rodrigo, E. Hayashi, M. L. Chu, Marjorie Shapiro, Mosè Mariotti, N. Bruner, T. Kikuchi, C. Pagliarone, Z. Feng, S. Galeotti, C. Haber, W. Kowald, G. Introzzi, A. Stefanini, Kazuhiko Hara, W. K. Sakumoto, P. F. Shepard, S. H. Oh, P. Yeh, S. Geer, T. L. Thomas, C. Grosso-Pilcher, T. J. Phillips, Y. Morita, S. Blusk, Jochen Jens Heinrich, K. Ragan, Y. Bonushkin, I. Fiori, A. W. Scott, L. Rosenson, Itsuo Nakano, G. Michail, J. R. Bensinger, L. Groer, E. S. Hafen, Alan Garfinkel, J. Suzuki, R. Takashima, R. Wilkinson, E. Buckley-Geer, M. Atac, Joe Kroll, J. E. Elias, E. E. Schmidt, Hiroto Kambara, D. Lucchesi, H. Grassmann, J. Wolinski, Kenneth Bloom, Jay Dittmann, R. K. Plunkett, N. Moggi, J. Strologas, Riccardo Paoletti, S. Bertolucci, P. Sinervo, K. D. Hoffman, F. Ukegawa, D. Cauz, T. Uchida, P. Mc Intyre, R. S. Guo, P. F. Derwent, H. Toyoda, D. Reher, Robert M Harris, J. Wyss, Hyun-Chul Kim, J. P. Berge, G. Chiarelli, M. M. Deninno, Yasuo Fukui, J. Berryhill, M. Lancaster, Marcus Hohlmann, Andrea Castro, Jacobo Konigsberg, L. E. Kirsch, A. Nomerotski, L. Breccia, T. Okusawa, P. Mazzanti, O. Long, J. Bao, D. Khazins, K. Karr, C. H. Wang, M. Lindgren, H. Y. Chao, Michele Gallinaro, E. Kuns, L. Christofek, A. Ribon, S. C. van den Brink, G. Pauletta, M. Contreras, Gino Bolla, G. Giusti, T. Handa, A. Byon-Wagner, M. T. Cheng, T. Asakawa, M. Tecchio, Tetsuo Arisawa, T. Suzuki, B. J. Kim, A. Scribano, B. Tannenbaum, J. Done, W-M. Yao, D. Dagenhart, N. Eddy, O. Ganel, S. Worm, J. Huston, Sally Seidel, R. J. Hollebeek, M. P. Schmidt, A. Pompos, S. Tether, J. Tseng, James D. Olsen, Henry J. Frisch, A. Caner, E. Meschi, J. Lys, J. I. Lamoureux, R. Roser, A. T. Goshaw, Rossella Brunetti, G. Punzi, E. Engels, Ciro Bigongiari, M. Musy, P. Lukens, M. Binkley, F. Ptohos, Frank Chlebana, J. Spalding, C. Couyoumtzelis, M. G. Albrow, J. Boudreau, K. S. Mc Farland, V. Papadimitriou, E. Kajfasz, S. Cihangir, Umesh Joshi, R. Oishi, J. Steele, W. J. Robertson, Jay Hauser, J. P. Marriner, J. Cooper, T. Baumann, M. Barone, C. Ferretti, P. Azzi-Bacchetta, Masaaki Tanaka, H. Wenzel, Avraham Yagil, L. Holloway, Manfred Paulini, David Saltzberg, M. Cordelli, G. Busetto, Brian L Winer, J.I. Friedman, S. H. Kim, K. Tollefson, T. Watanabe, A. Akopian, R. D. Kennedy, A. Heiss, C. Bromberg, R. G. Wagner, F. de Jongh, H. Nakada, W. C. Wester, Scott D. Metzler, H. Minato, Andrey Korytov, N. Parashar, W. Bokhari, M. Campbell, M. D. Peters, J. D. Lewis, M. Timko, S. P. Pappas, F. Strumia, M. Incagli, M. W. Bailey, J. Patrick, P. Sphicas, J. B. Liu, M. Lanzoni, P. Giannetti, J. Siegrist, R. Handler, Stefano Belforte, Andrea Sansoni, Yongsun Kim, G. Latino, D. Theriot, L. Pescara, F. Tartarelli, Virgil E Barnes, Nikos Giokaris, T. Le Compte, S. Donati, S. Dell'Agnello, Leonard Spiegel, P. Koehn, Henrik Jeldtoft Jensen, D. Costanzo, Th. Müller, J. Wahl, T. Kaneko, L. Santi, Kostantinos Kordas, K. Yasuoka, W. Ashmanskas, A. Amadon, S. R. Amendolia, Tomoko Yoshida, N. B. Wallace, S. Errede, K. Sliwa, L. Ristori, S. Klimenko, J. F. de Troconiz, Yanwen Liu, Duncan Carlsmith, P. S. Chang, L. Demortier, R. E. Hughes, S. Zucchelli, R. E. Blair, J. N. Bellinger, S. Bettelli, Daniel P Cronin-Hennessy, B. Flaugher, J. Incandela, W. Trischuk, C. Nelson, Petar Maksimovic, S. Segler, C. Smith, C. Holck, R. Cropp, F. Rimondi, A. Menzione, Y. Seiya, W. Hao, K. Biery, J. Conway, Nicola Bacchetta, R. Ströhmer, M. Franklin, A. Titov, B. T. Huffman, S. Bagdasarov, F. Bedeschi, Hiroshi Ikeda, D. Winn, Z. Huang, R. Culbertson, Kiminori Kondo, Andrew Beretvas, Maria Spiropulu, R. C. Webb, B. A. Barnett, Giorgio Apollinari, John Huth, J. Proudfoot, Kevin Burkett, G. Piacentino, Q. Fan, A. Tollestrup, K. L. Byrum, F. Spinella, D. Amidei, Douglas Benjamin, E. Cocca, E. James, P. Giromini, Teruki Kamon, S. Truitt, P. Murat, T. Shah, Craig Blocker, Anna Zanetti, H. Kasha, B. Hinrichsen, M. Reischl, A. Bodek, L. Nodulman, S. Rolli, C. Wei, Kaori Maeshima, J. Iwai, R. Demina, W. Erdmann, C. Yosef, D. Errede, T. Devlin, G. Bauer, A. D. Hardman, Y. Teramoto, F. D. Snider, R. L. Wagner, K. Goulianos, Y. Kato, D. Neuberger, G. Guillian, P. Wilson, S. Lusin, F. Happacher, P. T. Chang, M. Menguzzato, J. Guimaraes Da Costa, K. T. Pitts, D. W. Gerdes, Catherine Newman-Holmes, T. Speer, Dario Bisello, A. Bhatti, M. Okabe, S. Miyashita, S. E. Kuhlmann, T. Nakaya, H. Akimoto, A. Perazzo, P. Schlabach, S. Lami, N. M. Shaw, J. C. Freeman, Kevin Einsweiler, A. G. Clark, J. Yoh, S. R. Hahn, J. Cassada, A. Cerri, R. Hamilton, J. Antos, Konstanty Sumorok, M. Pillai, S. Miscetti, G. W. Foster, P. de Barbaro, D. Toback, M. Garcia-Sciveres, R. J. Miller, A. Mukherjee, M. J. Wang, T. Miao, Mark Kruse, D. Knoblauch, Marina Cobal, Paul Tipton, Tommaso Dorigo, T. Saab, M. Gold, Xin Wu, A. Köngeter, B. Bevensee, Intae Yu, G. Bellettini, G. Martignon, F. Zetti, N. S. Lockyer, C. N. Chiou, E. Kovacs, T. Ohmoto, R. Vilar, T. L. Watts, R. Kephart, Frank Hartmann, Alan Sill, J. Valls, D. Wolinski, K. Kelley, S. Leone, H. S. Budd, Y. Iwata, Daniela Bortoletto, A. Robinson, Fumio Abe, K. Takikawa, R. Thurman-Keup, Cyp Ngan, S. Aota, E. Moore, A. Gordon, T. Ohsugi, M. J. Shochet, P. K. Teng, Wendy Taylor, and J. A.J. Matthews

Subjects
Baryon, Physics, Particle physics, Meson, Physics::Medical Physics, Hadron, Quark model, General Physics and Astronomy, High Energy Physics::Experiment, Invariant mass, Elementary particle, Collider Detector at Fermilab, Boson
Abstract

We have used $87{\mathrm{pb}}^{\ensuremath{-}1}$ of data collected with the collider detector at Fermilab to search for new particles decaying to $b\overline{b}$. We present model-independent upper limits on the cross section for narrow resonances which exclude the color-octet technirho in the mass interval $350lMl440\mathrm{GeV}{/c}^{2}$. In addition, we exclude top-gluons, predicted in models of top-color-assisted technicolor, of width $\ensuremath{\Gamma}\phantom{\rule{0ex}{0ex}}=\phantom{\rule{0ex}{0ex}}0.3M$ in the mass range $280lMl670\mathrm{GeV}{/c}^{2}$, of width $\ensuremath{\Gamma}\phantom{\rule{0ex}{0ex}}=\phantom{\rule{0ex}{0ex}}0.5M$ in the mass range $340lMl640\mathrm{GeV}{/c}^{2}$, and of width $\ensuremath{\Gamma}\phantom{\rule{0ex}{0ex}}=\phantom{\rule{0ex}{0ex}}0.7M$ in the mass range $375lMl560\mathrm{GeV}{/c}^{2}$.

Published
1999

4. Search for Higgs Bosons Produced in Association with a Vector Boson inpp¯Collisions at√s=1.8TeV

Author

F. Abe, H. Akimoto, A. Akopian, M. G. Albrow, A. Amadon, S. R. Amendolia, D. Amidei, J. Antos, S. Aota, G. Apollinari, T. Arisawa, T. Asakawa, W. Ashmanskas, M. Atac, P. Azzi-Bacchetta, N. Bacchetta, S. Bagdasarov, M. W. Bailey, P. de Barbaro, A. Barbaro-Galtieri, V. E. Barnes, B. A. Barnett, M. Barone, G. Bauer, T. Baumann, F. Bedeschi, S. Behrends, S. Belforte, G. Bellettini, J. Bellinger, D. Benjamin, J. Bensinger, A. Beretvas, J. P. Berge, J. Berryhill, S. Bertolucci, S. Bettelli, B. Bevensee, A. Bhatti, K. Biery, C. Bigongiari, M. Binkley, D. Bisello, R. E. Blair, C. Blocker, K. Bloom, S. Blusk, A. Bodek, W. Bokhari, G. Bolla, Y. Bonushkin, D. Bortoletto, J. Boudreau, L. Breccia, C. Bromberg, N. Bruner, R. Brunetti, E. Buckley-Geer, H. S. Budd, K. Burkett, G. Busetto, A. Byon-Wagner, K. L. Byrum, M. Campbell, A. Caner, W. Carithers, D. Carlsmith, J. Cassada, A. Castro, D. Cauz, A. Cerri, P. S. Chang, P. T. Chang, H. Y. Chao, J. Chapman, M.-T. Cheng, M. Chertok, G. Chiarelli, C. N. Chiou, F. Chlebana, L. Christofek, M. L. Chu, S. Cihangir, A. G. Clark, M. Cobal, E. Cocca, M. Contreras, J. Conway, J. Cooper, M. Cordelli, D. Costanzo, C. Couyoumtzelis, D. Cronin-Hennessy, R. Culbertson, D. Dagenhart, T. Daniels, F. DeJongh, S. Dell'Agnello, M. Dell'Orso, R. Demina, L. Demortier, M. Deninno, P. F. Derwent, T. Devlin, J. R. Dittmann, S. Donati, J. Done, T. Dorigo, N. Eddy, K. Einsweiler, J. E. Elias, R. Ely, E. Engels, W. Erdmann, D. Errede, S. Errede, Q. Fan, R. G. Feild, Z. Feng, C. Ferretti, I. Fiori, B. Flaugher, G. W. Foster, M. Franklin, J. Freeman, J. Friedman, H. Frisch, Y. Fukui, S. Gadomski, S. Galeotti, M. Gallinaro, O. Ganel, M. Garcia-Sciveres, A. F. Garfinkel, C. Gay, S. Geer, D. W. Gerdes, P. Giannetti, N. Giokaris, P. Giromini, G. Giusti, M. Gold, A. Gordon, A. T. Goshaw, Y. Gotra, K. Goulianos, H. Grassmann, L. Groer, C. Grosso-Pilcher, G. Guillian, J. Guimaraes da Costa, R. S. Guo, C. Haber, E. Hafen, S. R. Hahn, R. Hamilton, T. Handa, R. Handler, F. Happacher, K. Hara, A. D. Hardman, R. M. Harris, F. Hartmann, J. Hauser, E. Hayashi, J. Heinrich, W. Hao, B. Hinrichsen, K. D. Hoffman, M. Hohlmann, C. Holck, R. Hollebeek, L. Holloway, Z. Huang, B. T. Huffman, R. Hughes, J. Huston, J. Huth, H. Ikeda, M. Incagli, J. Incandela, G. Introzzi, J. Iwai, Y. Iwata, E. James, H. Jensen, U. Joshi, E. Kajfasz, H. Kambara, T. Kamon, T. Kaneko, K. Karr, H. Kasha, Y. Kato, T. A. Keaffaber, K. Kelley, R. D. Kennedy, R. Kephart, D. Kestenbaum, D. Khazins, T. Kikuchi, B. J. Kim, H. S. Kim, S. H. Kim, Y. K. Kim, L. Kirsch, S. Klimenko, D. Knoblauch, P. Koehn, A. Köngeter, K. Kondo, J. Konigsberg, K. Kordas, A. Korytov, E. Kovacs, W. Kowald, J. Kroll, M. Kruse, S. E. Kuhlmann, E. Kuns, K. Kurino, T. Kuwabara, A. T. Laasanen, S. Lami, S. Lammel, J. I. Lamoureux, M. Lancaster, M. Lanzoni, G. Latino, T. LeCompte, S. Leone, J. D. Lewis, M. Lindgren, T. M. Liss, J. B. Liu, Y. C. Liu, N. Lockyer, O. Long, C. Loomis, M. Loreti, D. Lucchesi, P. Lukens, S. Lusin, J. Lys, K. Maeshima, P. Maksimovic, M. Mangano, M. Mariotti, J. P. Marriner, G. Martignon, A. Martin, J. A. J. Matthews, P. Mazzanti, K. McFarland, P. McIntyre, P. Melese, M. Menguzzato, A. Menzione, E. Meschi, S. Metzler, C. Miao, T. Miao, G. Michail, R. Miller, H. Minato, S. Miscetti, M. Mishina, S. Miyashita, N. Moggi, E. Moore, Y. Morita, A. Mukherjee, T. Muller, P. Murat, S. Murgia, M. Musy, H. Nakada, T. Nakaya, I. Nakano, C. Nelson, D. Neuberger, C. Newman-Holmes, C.-Y. P. Ngan, L. Nodulman, A. Nomerotski, S. H. Oh, T. Ohmoto, T. Ohsugi, R. Oishi, M. Okabe, T. Okusawa, J. Olsen, C. Pagliarone, R. Paoletti, V. Papadimitriou, S. P. Pappas, N. Parashar, A. Parri, J. Patrick, G. Pauletta, M. Paulini, A. Perazzo, L. Pescara, M. D. Peters, T. J. Phillips, G. Piacentino, M. Pillai, K. T. Pitts, R. Plunkett, A. Pompos, L. Pondrom, J. Proudfoot, F. Ptohos, G. Punzi, K. Ragan, D. Reher, M. Reischl, A. Ribon, F. Rimondi, L. Ristori, W. J. Robertson, T. Rodrigo, S. Rolli, L. Rosenson, R. Roser, T. Saab, W. K. Sakumoto, D. Saltzberg, A. Sansoni, L. Santi, H. Sato, P. Schlabach, E. E. Schmidt, M. P. Schmidt, A. Scott, A. Scribano, S. Segler, S. Seidel, Y. Seiya, F. Semeria, T. Shah, M. D. Shapiro, N. M. Shaw, P. F. Shepard, T. Shibayama, M. Shimojima, M. Shochet, J. Siegrist, A. Sill, P. Sinervo, P. Singh, K. Sliwa, C. Smith, F. D. Snider, J. Spalding, T. Speer, P. Sphicas, F. Spinella, M. Spiropulu, L. Spiegel, L. Stanco, J. Steele, A. Stefanini, R. Ströhmer, J. Strologas, F. Strumia, D. Stuart, K. Sumorok, J. Suzuki, T. Suzuki, T. Takahashi, T. Takano, R. Takashima, K. Takikawa, M. Tanaka, B. Tannenbaum, F. Tartarelli, W. Taylor, M. Tecchio, P. K. Teng, Y. Teramoto, K. Terashi, S. Tether, D. Theriot, T. L. Thomas, R. Thurman-Keup, M. Timko, P. Tipton, A. Titov, S. Tkaczyk, D. Toback, K. Tollefson, A. Tollestrup, H. Toyoda, W. Trischuk, J. F. de Troconiz, S. Truitt, J. Tseng, N. Turini, T. Uchida, F. Ukegawa, J. Valls, S. C. van den Brink, S. Vejcik, G. Velev, R. Vidal, R. Vilar, D. Vucinic, R. G. Wagner, R. L. Wagner, J. Wahl, N. B. Wallace, A. M. Walsh, C. Wang, C. H. Wang, M. J. Wang, A. Warburton, T. Watanabe, T. Watts, R. Webb, C. Wei, H. Wenzel, W. C. Wester, A. B. Wicklund, E. Wicklund, R. Wilkinson, H. H. Williams, P. Wilson, B. L. Winer, D. Winn, D. Wolinski, J. Wolinski, S. Worm, X. Wu, J. Wyss, A. Yagil, W. Yao, K. Yasuoka, G. P. Yeh, P. Yeh, J. Yoh, C. Yosef, T. Yoshida, I. Yu, A. Zanetti, F. Zetti, and S. Zucchelli

Subjects
Physics, Nuclear physics, Particle decay, Particle physics, Branching fraction, Hadron, Higgs boson, General Physics and Astronomy, High Energy Physics::Experiment, Elementary particle, Collider Detector at Fermilab, Boson, Vector boson
Abstract

We search for Higgs bosons produced in association with a massive vector boson in 91{plus_minus}7 pb{sup {minus}1} of p{ovr p} collisions at {radical} (s) =1.8 TeV recorded by the Collider Detector at Fermilab. We assume the Higgs scalar H{sup 0} decays to a b{ovr b} pair with branching ratio {beta} , and we consider the hadronic decays of the vector boson V (W or Z ). Observations are consistent with background expectations. We place 95{percent} confidence level upper limits on {sigma}(p{ovr p}{r_arrow} H{sup 0}V){beta} as a function of the scalar mass (M{sub H{sup 0}}) over the range 70{lt}M{sub H{sup 0}}{lt}140 GeV /c{sup 2} . When combined with an analysis of the case where V is a leptonically decaying W , these limits vary from 23thinspthinsppb at M{sub H{sup 0}}=70 GeV/c{sup 2} to 17thinspthinsppb at M{sub H{sup 0}}=140 GeV/c{sup 2} . {copyright} {ital 1998} {ital The American Physical Society }

Published
1998

5. Measurement of theCP-Violation Parametersin(2β)inBd0/B¯d0→J/ψKS0Decays

Author

F. Abe, H. Akimoto, A. Akopian, M. G. Albrow, A. Amadon, S. R. Amendolia, D. Amidei, J. Antos, S. Aota, G. Apollinari, T. Arisawa, T. Asakawa, W. Ashmanskas, M. Atac, P. Azzi-Bacchetta, N. Bacchetta, S. Bagdasarov, M. W. Bailey, P. de Barbaro, A. Barbaro-Galtieri, V. E. Barnes, B. A. Barnett, M. Barone, G. Bauer, T. Baumann, F. Bedeschi, S. Behrends, S. Belforte, G. Bellettini, J. Bellinger, D. Benjamin, J. Bensinger, A. Beretvas, J. P. Berge, J. Berryhill, S. Bertolucci, S. Bettelli, B. Bevensee, A. Bhatti, K. Biery, C. Bigongiari, M. Binkley, D. Bisello, R. E. Blair, C. Blocker, S. Blusk, A. Bodek, W. Bokhari, G. Bolla, Y. Bonushkin, D. Bortoletto, J. Boudreau, L. Breccia, C. Bromberg, N. Bruner, R. Brunetti, E. Buckley-Geer, H. S. Budd, K. Burkett, G. Busetto, A. Byon-Wagner, K. L. Byrum, M. Campbell, A. Caner, W. Carithers, D. Carlsmith, J. Cassada, A. Castro, D. Cauz, A. Cerri, P. S. Chang, P. T. Chang, H. Y. Chao, J. Chapman, M.-T. Cheng, M. Chertok, G. Chiarelli, C. N. Chiou, F. Chlebana, L. Christofek, M. L. Chu, S. Cihangir, A. G. Clark, M. Cobal, E. Cocca, M. Contreras, J. Conway, J. Cooper, M. Cordelli, D. Costanzo, C. Couyoumtzelis, D. Cronin-Hennessy, R. Culbertson, D. Dagenhart, T. Daniels, F. DeJongh, S. Dell'Agnello, M. Dell'Orso, R. Demina, L. Demortier, M. Deninno, P. F. Derwent, T. Devlin, J. R. Dittmann, S. Donati, J. Done, T. Dorigo, N. Eddy, K. Einsweiler, J. E. Elias, R. Ely, E. Engels, W. Erdmann, D. Errede, S. Errede, Q. Fan, R. G. Feild, Z. Feng, C. Ferretti, I. Fiori, B. Flaugher, G. W. Foster, M. Franklin, J. Freeman, J. Friedman, Y. Fukui, S. Gadomski, S. Galeotti, M. Gallinaro, O. Ganel, M. Garcia-Sciveres, A. F. Garfinkel, C. Gay, S. Geer, D. W. Gerdes, P. Giannetti, N. Giokaris, P. Giromini, G. Giusti, M. Gold, A. Gordon, A. T. Goshaw, Y. Gotra, K. Goulianos, H. Grassmann, L. Groer, C. Grosso-Pilcher, G. Guillian, J. Guimaraes da Costa, R. S. Guo, C. Haber, E. Hafen, S. R. Hahn, R. Hamilton, T. Handa, R. Handler, F. Happacher, K. Hara, A. D. Hardman, R. M. Harris, F. Hartmann, J. Hauser, E. Hayashi, J. Heinrich, W. Hao, B. Hinrichsen, K. D. Hoffman, M. Hohlmann, C. Holck, R. Hollebeek, L. Holloway, Z. Huang, B. T. Huffman, R. Hughes, J. Huston, J. Huth, H. Ikeda, M. Incagli, J. Incadela, G. Introzzi, J. Iwai, Y. Iwata, E. James, H. Jensen, U. Joshi, E. Kajfasz, H. Kambara, T. Kamon, T. Kaneko, K. Karr, H. Kasha, Y. Kato, T. A. Keaffaber, K. Kelley, R. D. Kennedy, R. Kephart, D. Kestenbaum, D. Khazins, T. Kikuchi, B. J. Kim, H. S. Kim, S. H. Kim, Y. K. Kim, L. Kirsch, S. Klimenko, D. Knoblauch, P. Koehn, A. Köngeter, K. Kondo, J. Konigsberg, K. Kordas, A. Korytov, E. Kovacs, W. Kowald, J. Kroll, M. Kruse, S. E. Kuhlmann, E. Kuns, K. Kurino, T. Kuwabara, A. T. Laasanen, S. Lami, S. Lammel, J. I. Lamoureux, M. Lancaster, M. Lanzoni, G. Latino, T. LeCompte, S. Leone, J. D. Lewis, P. Limon, M. Lindgren, T. M. Liss, J. B. Liu, Y. C. Liu, N. Lockyer, O. Long, C. Loomis, M. Loreti, D. Lucchesi, P. Lukens, S. Lusin, J. Lys, K. Maeshima, P. Maksimovic, M. Mangano, M. Mariotti, J. P. Marriner, G. Martignon, A. Martin, J. A. J. Matthews, P. Mazzanti, K. McFarland, P. McIntyre, P. Melese, M. Menguzzato, A. Menzione, E. Meschi, S. Metzler, C. Miao, T. Miao, G. Michail, R. Miller, H. Minato, S. Miscetti, M. Mishina, S. Miyashita, N. Moggi, E. Moore, Y. Morita, A. Mukherjee, T. Muller, P. Murat, S. Murgia, M. Musy, H. Nakada, T. Nakaya, I. Nakano, C. Nelson, D. Neuberger, C. Newman-Holmes, C.-Y. P. Ngan, L. Nodulman, A. Nomerotski, S. H. Oh, T. Ohmoto, T. Ohsugi, R. Oishi, M. Okabe, T. Okusawa, J. Olsen, C. Pagliarone, R. Paoletti, V. Papadimitriou, S. P. Pappas, N. Parashar, A. Parri, J. Patrick, G. Pauletta, M. Paulini, A. Perazzo, L. Pescara, M. D. Peters, T. J. Phillips, G. Piacentino, M. Pillai, K. T. Pitts, R. Plunkett, A. Pompos, L. Pondrom, J. Proudfoot, F. Ptohos, G. Punzi, K. Ragan, D. Reher, M. Reischl, A. Ribon, F. Rimondi, L. Ristori, W. J. Robertson, T. Rodrigo, S. Rolli, L. Rosenson, R. Roser, T. Saab, W. K. Sakumoto, D. Saltzberg, A. Sansoni, L. Santi, H. Sato, P. Schlabach, E. E. Schmidt, M. P. Schmidt, A. Scott, A. Scribano, S. Segler, S. Seidel, Y. Seiya, F. Semeria, T. Shah, M. D. Shapiro, N. M. Shaw, P. F. Shepard, T. Shibayama, M. Shimojima, M. Shochet, J. Siegrist, A. Sill, P. Sinervo, P. Singh, K. Sliwa, C. Smith, F. D. Snider, J. Spalding, T. Speer, P. Sphicas, F. Spinella, M. Spiropulu, L. Spiegel, L. Stanco, J. Steele, A. Stefanini, R. Ströhmer, J. Strologas, F. Strumia, D. Stuart, K. Sumorok, J. Suzuki, T. Suzuki, T. Takahashi, T. Takano, R. Takashima, K. Takikawa, M. Tanaka, B. Tannenbaum, F. Tartarelli, W. Taylor, M. Tecchio, P. K. Teng, Y. Teramoto, K. Terashi, S. Tether, D. Theriot, T. L. Thomas, R. Thurman-Keup, M. Timko, P. Tipton, A. Titov, S. Tkaczyk, D. Toback, K. Tollefson, A. Tollestrup, H. Toyoda, W. Trischuk, J. F. de Troconiz, S. Truitt, J. Tseng, N. Turini, T. Uchida, F. Ukegawa, J. Valls, S. C. van den Brink, S. Vejcik, G. Velev, R. Vidal, R. Vilar, D. Vucinic, R. G. Wagner, R. L. Wagner, J. Wahl, N. B. Wallace, A. M. Walsh, C. Wang, C. H. Wang, M. J. Wang, A. Warburton, T. Watanabe, T. Watts, R. Webb, C. Wei, H. Wenzel, W. C. Wester, A. B. Wicklund, E. Wicklund, R. Wilkinson, H. H. Williams, P. Wilson, B. L. Winer, D. Winn, D. Wolinski, J. Wolinski, S. Worm, X. Wu, J. Wyss, A. Yagil, W. Yao, K. Yasuoka, G. P. Yeh, P. Yeh, J. Yoh, C. Yosef, T. Yoshida, I. Yu, A. Zanetti, F. Zetti, and S. Zucchelli

Subjects
Physics, Particle decay, Particle physics, Meson, Hadron, General Physics and Astronomy, CP violation, Elementary particle, B meson, Quarkonium, Bottom quark
Abstract

We present a measurement of the time-dependent asymmetry in the rate for {ovr B}{sub d}{sup 0} versus B{sub d}{sup 0} decays to J/{psi}K{sub s}{sup 0}. A nonzero asymmetry would be an indication of CP violation, and within the standard model this may be used to measure the CP-violation parameter sin(2{beta}). A total of 198{+-}17 B{sub d}{sup 0}/{ovr B}{sub d}{sup 0} decays were observed in p{ovr p} collisions at sqrt[s] = 1.8 TeV by the CDF detector at the Fermilab Tevatron. B{sub d}{sup 0} and {ovr B}{sub d}{sup 0} are distinguished by a technique based on charge correlations from hadronization of the b quark. Our analysis results in sin(2{beta}) = 1.8{+-}1.1(stat){+-}0.3(syst).

Published
1998

6. Events with a Rapidity Gap between Jets inp¯pCollisions at√s=630GeV

Author

F. Abe, H. Akimoto, A. Akopian, M. G. Albrow, A. Amadon, S. R. Amendolia, D. Amidei, J. Antos, S. Aota, G. Apollinari, T. Arisawa, T. Asakawa, W. Ashmanskas, M. Atac, P. Azzi-Bacchetta, N. Bacchetta, S. Bagdasarov, M. W. Bailey, P. de Barbaro, A. Barbaro-Galtieri, V. E. Barnes, B. A. Barnett, M. Barone, G. Bauer, T. Baumann, F. Bedeschi, S. Behrends, S. Belforte, G. Bellettini, J. Bellinger, D. Benjamin, J. Bensinger, A. Beretvas, J. P. Berge, J. Berryhill, S. Bertolucci, S. Bettelli, B. Bevensee, A. Bhatti, K. Biery, C. Bigongiari, M. Binkley, D. Bisello, R. E. Blair, C. Blocker, S. Blusk, A. Bodek, W. Bokhari, G. Bolla, Y. Bonushkin, D. Bortoletto, J. Boudreau, L. Breccia, C. Bromberg, N. Bruner, R. Brunetti, E. Buckley-Geer, H. S. Budd, K. Burkett, G. Busetto, A. Byon-Wagner, K. L. Byrum, M. Campbell, A. Caner, W. Carithers, D. Carlsmith, J. Cassada, A. Castro, D. Cauz, A. Cerri, P. S. Chang, P. T. Chang, H. Y. Chao, J. Chapman, M.-T. Cheng, M. Chertok, G. Chiarelli, C. N. Chiou, F. Chlebana, L. Christofek, M. L. Chu, S. Cihangir, A. G. Clark, M. Cobal, E. Cocca, M. Contreras, M. E. Convery, J. Conway, J. Cooper, M. Cordelli, D. Costanzo, C. Couyoumtzelis, D. Cronin-Hennessy, R. Culbertson, D. Dagenhart, T. Daniels, F. DeJongh, S. Dell'Agnello, M. Dell'Orso, R. Demina, L. Demortier, M. Deninno, P. F. Derwent, T. Devlin, J. R. Dittmann, S. Donati, J. Done, T. Dorigo, N. Eddy, K. Einsweiler, J. E. Elias, R. Ely, E. Engels, W. Erdmann, W. Errede, S. Errede, Q. Fan, R. G. Feild, Z. Feng, C. Ferretti, I. Fiori, B. Flaugher, G. W. Foster, M. Franklin, J. Freeman, J. Friedman, H. Frisch, Y. Fukui, S. Gadomski, S. Galeotti, M. Gallinaro, O. Ganel, M. Garcia-Sciveres, A. F. Garfinkel, C. Gay, S. Geer, D. W. Gerdes, P. Giannetti, N. Giokaris, G. Giusti, M. Gold, A. Gordon, A. T. Goshaw, Y. Gotra, K. Goulianos, H. Grassmann, L. Groer, C. Grosso-Pilcher, G. Guillian, J. Guimaraes da Costa, R. S. Guo, C. Haber, E. Hafen, S. R. Hahn, R. Hamilton, T. Handa, R. Handler, F. Happacher, K. Hara, A. D. Hardman, R. M. Harris, F. Hartmann, J. Hauser, E. Hayashi, J. Heinrich, W. Hao, B. Hinrichsen, K. D. Hoffman, M. Hohlmann, C. Holck, R. Hollebeek, L. Holloway, Z. Huang, B. T. Huffman, R. Hughes, J. Huston, J. Huth, H. Ikeda, M. Incagli, J. Incandela, G. Introzzi, J. Iwai, Y. Iwata, E. James, H. Jensen, U. Joshi, E. Kajfasz, H. Kambara, T. Kamon, T. Kaneko, K. Karr, H. Kasha, Y. Kato, T. A. Keaffaber, K. Kelley, R. D. Kennedy, R. Kephart, D. Kestenbaum, D. Khazins, T. Kikuchi, B. J. Kim, H. S. Kim, S. H. Kim, Y. K. Kim, L. Kirsch, S. Klimenko, D. Knoblauch, P. Koehn, A. Köngeter, K. Kondo, J. Konigsberg, K. Kordas, A. Korytov, E. Kovacs, W. Kowald, J. Kroll, M. Kruse, S. E. Kuhlmann, E. Kuns, K. Kurino, T. Kuwabara, A. T. Laasanen, S. Lami, S. Lammel, J. I. Lamoureux, M. Lancaster, M. Lanzoni, G. Latino, T. LeCompte, S. Leone, J. D. Lewis, M. Lindgren, T. M. Liss, J. B. Liu, Y. C. Liu, N. Lockyer, O. Long, C. Loomis, M. Loreti, D. Lucchesi, P. Lukens, S. Lusin, J. Lys, K. Maeshima, P. Maksimovic, M. Mangano, M. Mariotti, J. P. Marriner, G. Martignon, A. Martin, J. A. J. Matthews, P. Mazzanti, K. McFarland, P. McIntrye, P. Melese, M. Menguzzato, A. Menzione, E. Meschi, C. Mesropian, S. Metzler, C. Miao, T. Miao, G. Michail, R. Miller, H. Minato, S. Miscetti, M. Mishina, S. Miyashita, N. Moggi, E. Moore, Y. Morita, A. Mukherjee, T. Muller, P. Murat, S. Murgia, M. Musy, H. Nakada, T. Nakaya, I. Nakano, C. Nelson, D. Neuberger, C. Newman-Holmes, C.-Y. P. Ngan, L. Nodulman, A. Nomerotski, S. H. Oh, T. Ohmoto, T. Ohsugi, R. Oishi, M. Okabe, T. Okusawa, J. Olsen, C. Pagliarone, R. Paoletti, V. Papadimitriou, S. P. Pappas, N. Parashar, A. Parri, J. Patrick, G. Pauletta, M. Paulini, A. Perazzo, L. Pescara, M. D. Peters, T. J. Phillips, G. Piacentino, M. Pillai, K. T. Pitts, R. Plunkett, A. Pompos, L. Pondrom, J. Proudfoot, F. Ptohos, G. Punzi, K. Ragan, D. Reher, M. Reischl, A. Ribon, F. Rimondi, L. Ristori, W. J. Robertson, T. Rodrigo, S. Rolli, L. Rosenson, R. Roser, T. Saab, W. K. Sakumoto, D. Saltzberg, A. Sansoni, L. Santi, H. Sato, P. Schlabach, E. E. Schmidt, M. P. Schmidt, A. Scott, A. Scribano, S. Segler, S. Seidel, Y. Seiya, F. Semeria, T. Shah, M. D. Shapiro, N. M. Shaw, P. F. Shepard, T. Shibayama, M. Shimojima, M. Shochet, J. Siegrist, A. Sill, P. Sinervo, P. Singh, K. Sliwa, C. Smith, F. D. Snider, J. Spalding, T. Speer, P. Sphicas, F. Spinella, M. Spiropulu, L. Spiegel, L. Stanco, J. Steele, A. Stefanini, R. Ströhmer, J. Strologas, F. Strumia, D. Stuart, K. Sumorok, J. Suzuki, T. Suzuki, T. Takahashi, T. Takano, R. Takashima, K. Takikawa, M. Tanaka, B. Tannenbaum, F. Tartarelli, W. Taylor, M. Tecchio, P. K. Teng, Y. Teramoto, K. Terashi, S. Tether, D. Theriot, T. L. Thomas, R. Thurman-Keup, M. Timko, P. Tipton, A. Titov, S. Tkaczyk, D. Toback, K. Tollefson, A. Tollestrup, H. Toyoda, W. Trischuk, J. F. de Troconiz, S. Truitt, J. Tseng, N. Turini, T. Uchida, F. Ukegawa, J. Valls, S. C. van den Brink, S. Vejcik, G. Velev, R. Vidal, R. Vilar, D. Vucinic, R. G. Wagner, R. L. Wagner, J. Wahl, N. B. Wallace, A. M. Walsh, C. Wang, C. H. Wang, M. J. Wang, A. Warburton, T. Watanabe, T. Watts, R. Webb, C. Wei, H. Wenzel, W. C. Wester, A. B. Wicklund, E. Wicklund, R. Wilkinson, H. H. Williams, P. Wilson, B. L. Winer, D. Winn, D. Wolinski, J. Wolinski, S. Worm, X. Wu, J. Wyss, A. Yagil, W. Yao, K. Yasuoka, G. P. Yeh, P. Yeh, J. Yoh, C. Yosef, T. Yoshida, I. Yu, A. Zanetti, F. Zetti, and S. Zucchelli

Subjects
Baryon, Physics, Particle physics, Particle model, Hadron, Quark model, General Physics and Astronomy, Elementary particle, Rapidity, Fermion, Nucleon
Published
1998

7. Observation of HadronicWDecays intt¯Events with the Collider Detector at Fermilab

Author

F. Abe, H. Akimoto, A. Akopian, M. G. Albrow, A. Amadon, S. R. Amendolia, D. Amidei, J. Antos, S. Aota, G. Apollinari, T. Arisawa, T. Asakawa, W. Ashmanskas, M. Atac, P. Azzi-Bacchetta, N. Bacchetta, S. Bagdasarov, M. W. Bailey, P. de Barbaro, V. E. Barnes, B. A. Barnett, M. Barone, G. Bauer, T. Baumann, F. Bedeschi, S. Behrends, S. Belforte, G. Bellettini, J. Bellinger, D. Benjamin, J. Bensinger, A. Beretvas, J. P. Berge, J. Berryhill, S. Bertolucci, S. Bettelli, B. Bevensee, A. Bhatti, K. Biery, C. Bigongiari, M. Binkley, D. Bisello, R. E. Blair, C. Blocker, S. Blusk, A. Bodek, W. Bokhari, G. Bolla, Y. Bonushkin, D. Bortoletto, J. Boudreau, L. Breccia, C. Bromberg, N. Bruner, R. Brunetti, E. Buckley-Geer, H. S. Budd, K. Burkett, G. Busetto, A. Byon-Wagner, K. L. Byrum, M. Campbell, A. Caner, W. Carithers, D. Carlsmith, J. Cassada, A. Castro, D. Cauz, A. Cerri, P. S. Chang, P. T. Chang, H. Y. Chao, J. Chapman, M.-T. Cheng, M. Chertok, G. Chiarelli, C. N. Chiou, F. Chlebana, L. Christofek, M. L. Chu, S. Cihangir, A. G. Clark, M. Cobal, E. Cocca, M. Contreras, J. Conway, J. Cooper, M. Cordelli, D. Costanzo, C. Couyoumtzelis, D. Cronin-Hennessy, R. Culbertson, D. Dagenhart, T. Daniels, F. DeJongh, S. Dell'Agnello, M. Dell'Orso, R. Demina, L. Demortier, M. Deninno, P. F. Derwent, T. Devlin, J. R. Dittmann, S. Donati, J. Done, T. Dorigo, N. Eddy, K. Einsweiler, J. E. Elias, R. Ely, E. Engels, W. Erdmann, D. Errede, S. Errede, Q. Fan, R. G. Feild, Z. Feng, C. Ferretti, I. Fiori, B. Flaugher, G. W. Foster, M. Franklin, J. Freeman, J. Friedman, H. Frisch, Y. Fukui, S. Gadomski, S. Galeotti, M. Gallinaro, O. Ganel, A. F. Garfinkel, C. Gay, S. Geer, D. W. Gerdes, P. Giannetti, N. Giokaris, P. Giromini, G. Giusti, M. Gold, A. Gordon, A. T. Goshaw, Y. Gotra, K. Goulianos, H. Grassmann, L. Groer, C. Grosso-Pilcher, G. Guillian, J. Guimaraes da Costa, R. S. Guo, C. Haber, E. Hafen, S. R. Hahn, R. Hamilton, T. Handa, R. Handler, F. Happacher, K. Hara, A. D. Hardman, R. M. Harris, F. Hartmann, J. Hauser, E. Hayashi, J. Heinrich, W. Hao, B. Hinrichsen, K. D. Hoffman, M. Hohlmann, C. Holck, R. Hollebeek, L. Holloway, Z. Huang, B. T. Huffman, R. Hughes, J. Huston, J. Huth, H. Ikeda, M. Incagli, J. Incandela, G. Introzzi, J. Iwai, Y. Iwata, E. James, H. Jensen, U. Joshi, E. Kajfasz, H. Kambara, T. Kamon, T. Kaneko, K. Karr, H. Kasha, Y. Kato, T. A. Keaffaber, K. Kelley, R. D. Kennedy, R. Kephart, D. Kestenbaum, D. Khazins, T. Kikuchi, B. J. Kim, H. S. Kim, S. H. Kim, Y. K. Kim, L. Kirsch, S. Klimenko, D. Knoblauch, P. Koehn, A. Köngeter, K. Kondo, J. Konigsberg, K. Kordas, A. Korytov, E. Kovacs, W. Kowald, J. Kroll, M. Kruse, S. E. Kuhlmann, E. Kuns, K. Kurino, T. Kuwabara, A. T. Laasanen, S. Lami, S. Lammel, J. I. Lamoureux, M. Lancaster, M. Lanzoni, G. Latino, T. LeCompte, S. Leone, J. D. Lewis, P. Limon, M. Lindgren, T. M. Liss, J. B. Liu, Y. C. Liu, N. Lockyer, O. Long, C. Loomis, M. Loreti, D. Lucchesi, P. Lukens, S. Lusin, K. Maeshima, P. Maksimovic, M. Mangano, M. Mariotti, J. P. Marriner, A. Martin, J. A. J. Matthews, P. Mazzanti, P. McIntyre, P. Melese, M. Menguzzato, A. Menzione, E. Meschi, S. Metzler, C. Miao, T. Miao, G. Michail, R. Miller, H. Minato, S. Miscetti, M. Mishina, S. Miyashita, N. Moggi, E. Moore, Y. Morita, A. Mukherjee, T. Muller, P. Murat, S. Murgia, H. Nakada, I. Nakano, C. Nelson, D. Neuberger, C. Newman-Holmes, C.-Y. P. Ngan, L. Nodulman, A. Nomerotski, S. H. Oh, T. Ohmoto, T. Ohsugi, R. Oishi, M. Okabe, T. Okusawa, J. Olsen, C. Pagliarone, R. Paoletti, V. Papadimitriou, S. P. Pappas, N. Parashar, A. Parri, J. Patrick, G. Pauletta, A. Perazzo, L. Pescara, M. D. Peters, T. J. Phillips, G. Piacentino, M. Pillai, K. T. Pitts, R. Plunkett, L. Pondrom, J. Proudfoot, F. Ptohos, G. Punzi, K. Ragan, D. Reher, M. Reischl, A. Ribon, F. Rimondi, L. Ristori, W. J. Robertson, T. Rodrigo, S. Rolli, L. Rosenson, R. Roser, T. Saab, W. K. Sakumoto, D. Saltzberg, A. Sansoni, L. Santi, H. Sato, P. Schlabach, E. E. Schmidt, M. P. Schmidt, A. Scott, A. Scribano, S. Segler, S. Seidel, Y. Seiya, F. Semeria, T. Shah, M. D. Shapiro, N. M. Shaw, P. F. Shepard, T. Shibayama, M. Shimojima, M. Shochet, J. Siegrist, A. Sill, P. Sinervo, P. Singh, K. Sliwa, C. Smith, F. D. Snider, J. Spalding, T. Speer, P. Sphicas, F. Spinella, M. Spiropulu, L. Spiegel, L. Stanco, J. Steele, A. Stefanini, R. Ströhmer, J. Strologas, F. Strumia, D. Stuart, K. Sumorok, J. Suzuki, T. Suzuki, T. Takahashi, T. Takano, R. Takashima, K. Takikawa, M. Tanaka, B. Tannenbaum, F. Tartarelli, W. Taylor, M. Tecchio, P. K. Teng, Y. Teramoto, K. Terashi, S. Tether, D. Theriot, T. L. Thomas, R. Thurman-Keup, M. Timko, P. Tipton, A. Titov, S. Tkaczyk, D. Toback, K. Tollefson, A. Tollestrup, H. Toyoda, W. Trischuk, J. F. de Troconiz, S. Truitt, J. Tseng, N. Turini, T. Uchida, F. Ukegawa, J. Valls, S. C. van den Brink, S. Vejcik, G. Velev, R. Vidal, R. Vilar, D. Vucinic, R. G. Wagner, R. L. Wagner, J. Wahl, N. B. Wallace, A. M. Walsh, C. Wang, C. H. Wang, M. J. Wang, A. Warburton, T. Watanabe, T. Watts, R. Webb, C. Wei, H. Wenzel, W. C. Wester, A. B. Wicklund, E. Wicklund, R. Wilkinson, H. H. Williams, P. Wilson, B. L. Winer, D. Winn, D. Wolinski, J. Wolinski, S. Worm, X. Wu, J. Wyss, A. Yagil, K. Yasuoka, G. P. Yeh, P. Yeh, J. Yoh, C. Yosef, T. Yoshida, I. Yu, A. Zanetti, F. Zetti, and S. Zucchelli

Subjects
Physics, Particle physics, Mass distribution, Hadron, General Physics and Astronomy, Particle accelerator, Jet (particle physics), Silicon vertex detector, law.invention, Nuclear physics, law, High Energy Physics::Experiment, Invariant mass, Nuclear Experiment, Collider Detector at Fermilab, Bar (unit)
Abstract

We observe hadronic W decays in t{ovr t}{yields}W({yields}{ell}V)+{>=}4 jet events using a 109 pb{sup -1} data sample of p{ovr p}{sup -1} data sample of p{ovr p} collisions at sqrt[s] = 1.8 TeV collected with the Collider Detector at Fermilab. A peak in the dijet invariant mass distribution is obtained that is consistent with W decay and inconsistent with the background prediction by 3.3 {sigma}. From this peak we measure the W mass to be 77.2{+-}4.6(stat+syst) GeV/c{sup 2}. This result demonstrates the presence of a second W boson in t{ovr t} candidates in the W({yields}{ell}v)+{>=}4 jet channel.

Published
1998

8. Properties of Jets inWBoson Events from 1.8 TeVp¯pCollisions

Author

F. Abe, H. Akimoto, A. Akopian, M. G. Albrow, S. R. Amendolia, D. Amidei, J. Antos, S. Aota, G. Apollinari, T. Arisawa, T. Asakawa, W. Ashmanskas, M. Atac, F. Azfar, P. Azzi-Bacchetta, N. Bacchetta, W. Badgett, S. Bagdasarov, M. W. Bailey, J. Bao, P. de Barbaro, A. Barbaro-Galtieri, V. E. Barnes, B. A. Barnett, M. Barone, E. Barzi, G. Bauer, T. Baumann, F. Bedeschi, S. Behrends, S. Belforte, G. Bellettini, J. Bellinger, D. Benjamin, J. Benlloch, J. Bensinger, D. Benton, A. Beretvas, J. P. Berge, J. Berryhill, S. Bertolucci, S. Bettelli, B. Bevensee, A. Bhatti, K. Biery, M. Binkley, D. Bisello, R. E. Blair, C. Blocker, S. Blusk, A. Bodek, W. Bokhari, G. Bolla, V. Bolognesi, Y. Bonushkin, D. Bortoletto, J. Boudreau, L. Breccia, C. Bromberg, N. Bruner, E. Buckley-Geer, H. S. Budd, K. Burkett, G. Busetto, A. Byon-Wagner, K. L. Byrum, C. Campagnari, M. Campbell, A. Caner, W. Carithers, D. Carlsmith, J. Cassada, A. Castro, D. Cauz, Y. Cen, A. Cerri, F. Cervelli, P. S. Chang, P. T. Chang, H. Y. Chao, J. Chapman, M.-T. Cheng, M. Chertok, G. Chiarelli, T. Chikamatsu, C. N. Chiou, L. Christofek, S. Cihangir, A. G. Clark, M. Cobal, E. Cocca, M. Contreras, J. Conway, J. Cooper, M. Cordelli, C. Couyoumtzelis, D. Crane, D. Cronin-Hennessy, R. Culbertson, T. Daniels, F. DeJongh, S. Delchamps, S. Dell'Agnello, M. Dell'Orso, R. Demina, L. Demortier, M. Deninno, P. F. Derwent, T. Devlin, J. R. Dittmann, S. Donati, J. Done, T. Dorigo, A. Dunn, N. Eddy, K. Einsweiler, J. E. Elias, R. Ely, E. Engels, D. Errede, S. Errede, Q. Fan, G. Feild, Z. Feng, C. Ferretti, I. Fiori, B. Flaugher, G. W. Foster, M. Franklin, M. Frautschi, J. Freeman, J. Friedman, H. Frisch, Y. Fukui, S. Funaki, S. Galeotti, M. Gallinaro, O. Ganel, M. Garcia-Sciveres, A. F. Garfinkel, C. Gay, S. Geer, D. W. Gerdes, P. Giannetti, N. Giokaris, P. Giromini, G. Giusti, L. Gladney, M. Gold, J. Gonzalez, A. Gordon, A. T. Goshaw, Y. Gotra, K. Goulianos, H. Grassmann, L. Groer, C. Grosso-Pilcher, G. Guillian, J. Guimarães, R. S. Guo, C. Haber, E. Hafen, S. R. Hahn, R. Hamilton, R. Handler, R. M. Hans, F. Happacher, K. Hara, A. D. Hardman, B. Harral, R. M. Harris, S. A. Hauger, J. Hauser, C. Hawk, E. Hayashi, J. Heinrich, B. Hinrichsen, K. D. Hoffman, M. Hohlmann, C. Holck, R. Hollebeek, L. Holloway, S. Hong, G. Houk, P. Hu, B. T. Huffman, R. Hughes, J. Huston, J. Huth, J. Hylen, H. Ikeda, M. Incagli, J. Incandela, G. Introzzi, J. Iwai, Y. Iwata, H. Jensen, U. Joshi, R. W. Kadel, E. Kajfasz, H. Kambara, T. Kamon, T. Kaneko, K. Karr, H. Kasha, Y. Kato, T. A. Keaffaber, K. Kelley, R. D. Kennedy, R. Kephart, P. Kesten, D. Kestenbaum, H. Keutelian, F. Keyvan, B. Kharadia, B. J. Kim, D. H. Kim, H. S. Kim, S. B. Kim, S. H. Kim, Y. K. Kim, L. Kirsch, P. Koehn, A. Köngeter, K. Kondo, J. Konigsberg, S. Kopp, K. Kordas, A. Korytov, W. Koska, E. Kovacs, W. Kowald, M. Krasberg, J. Kroll, M. Kruse, S. E. Kuhlmann, E. Kuns, T. Kuwabara, A. T. Laasanen, S. Lami, S. Lammel, J. I. Lamoureux, M. Lancaster, M. Lanzoni, G. Latino, T. LeCompte, S. Leone, J. D. Lewis, P. Limon, M. Lindgren, T. M. Liss, J. B. Liu, Y. C. Liu, N. Lockyer, O. Long, C. Loomis, M. Loreti, J. Lu, D. Lucchesi, P. Lukens, S. Lusin, J. Lys, K. Maeshima, A. Maghakian, P. Maksimovic, M. Mangano, M. Mariotti, J. P. Marriner, A. Martin, J. A. J. Matthews, R. Mattingly, P. Mazzanti, P. McIntyre, P. Melese, A. Menzione, E. Meschi, S. Metzler, C. Miao, T. Miao, G. Michail, R. Miller, H. Minato, S. Miscetti, M. Mishina, H. Mitsushio, T. Miyamoto, S. Miyashita, N. Moggi, Y. Morita, A. Mukherjee, T. Muller, P. Murat, S. Murgia, H. Nakada, I. Nakano, C. Nelson, D. Neuberger, C. Newman-Holmes, C.-Y. P. Ngan, M. Ninomiya, L. Nodulman, S. H. Oh, K. E. Ohl, T. Ohmoto, T. Ohsugi, R. Oishi, M. Okabe, T. Okusawa, R. Oliveira, J. Olsen, C. Pagliarone, R. Paoletti, V. Papadimitriou, S. P. Pappas, N. Parashar, S. Park, A. Parri, J. Patrick, G. Pauletta, M. Paulini, A. Perazzo, L. Pescara, M. D. Peters, T. J. Phillips, G. Piacentino, M. Pillai, K. T. Pitts, R. Plunkett, L. Pondrom, J. Proudfoot, F. Ptohos, G. Punzi, K. Ragan, D. Reher, A. Ribon, F. Rimondi, L. Ristori, W. J. Robertson, T. Rodrigo, S. Rolli, J. Romano, L. Rosenson, R. Roser, T. Saab, W. K. Sakumoto, D. Saltzberg, A. Sansoni, L. Santi, H. Sato, P. Schlabach, E. E. Schmidt, M. P. Schmidt, A. Scott, A. Scribano, S. Segler, S. Seidel, Y. Seiya, F. Semeria, G. Sganos, T. Shah, M. D. Shapiro, N. M. Shaw, Q. Shen, P. F. Shepard, M. Shimojima, M. Shochet, J. Siegrist, A. Sill, P. Sinervo, P. Singh, K. Sliwa, C. Smith, F. D. Snider, T. Song, J. Spalding, T. Speer, P. Sphicas, F. Spinella, M. Spiropulu, L. Spiegel, L. Stanco, J. Steele, A. Stefanini, J. Strait, R. Ströhmer, D. Stuart, G. Sullivan, K. Sumorok, J. Suzuki, T. Takada, T. Takahashi, T. Takano, K. Takikawa, N. Tamura, B. Tannenbaum, F. Tartarelli, W. Taylor, P. K. Teng, Y. Teramoto, S. Tether, D. Theriot, T. L. Thomas, R. Thun, R. Thurman-Keup, M. Timko, P. Tipton, A. Titov, S. Tkaczyk, D. Toback, K. Tollefson, A. Tollestrup, H. Toyoda, W. Trischuk, J. F. de Troconiz, S. Truitt, J. Tseng, N. Turini, T. Uchida, N. Uemura, F. Ukegawa, G. Unal, J. Valls, S. C. van den Brink, S. Vejcik, G. Velev, R. Vidal, R. Vilar, M. Vondracek, D. Vucinic, R. G. Wagner, R. L. Wagner, J. Wahl, N. B. Wallace, A. M. Walsh, C. Wang, C. H. Wang, J. Wang, M. J. Wang, Q. F. Wang, A. Warburton, T. Watts, R. Webb, C. Wei, H. Wei, H. Wenzel, W. C. Wester, A. B. Wicklund, E. Wicklund, R. Wilkinson, H. H. Williams, P. Wilson, B. L. Winer, D. Winn, D. Wolinski, J. Wolinski, S. Worm, X. Wu, J. Wyss, A. Yagil, W. Yao, K. Yasuoka, Y. Ye, G. P. Yeh, P. Yeh, M. Yin, J. Yoh, C. Yosef, T. Yoshida, D. Yovanovitch, I. Yu, L. Yu, J. C. Yun, A. Zanetti, F. Zetti, L. Zhang, W. Zhang, and S. Zucchelli

Subjects
Quantum chromodynamics, Physics, Particle physics, Astrophysics::High Energy Astrophysical Phenomena, High Energy Physics::Phenomenology, Hadron, Tevatron, General Physics and Astronomy, Parton, Particle accelerator, Gluon, law.invention, Nuclear physics, law, High Energy Physics::Experiment, Fermilab, Nuclear Experiment, Boson
Abstract

We present a study of events with W bosons and hadronic jets produced in {ovr p}p collisions at a center of mass energy of 1.8 TeV. The data consist of 51 400 W{sup +-}{yields}e{sup +-}{nu} decay candidates from 108 pb{sup -1} of integrated luminosity collected using the CDF detector at the Fermilab Tevatron Collider. Cross sections and jet production properties have been measured for W+{>=}1 to {>=}4 jet events. The data are compared to predictions of leading-order QCD matrix element calculations with added gluon radiation and simulated parton fragmentation.

Published
1997

9. Search for New Gauge Bosons Decaying into Dileptons inp¯pCollisions ats}=1.8TeV

Author

C. H. Wang, M. Lindgren, B. Tannenbaum, M. Barone, Stephan Lammel, D. Cauz, Thomas LeCompte, A. J. Martin, W. Carithers, A. G. Clark, W. Badgett, D. Benton, S. Cihangir, J. Wahl, L. Pondrom, E. Wicklund, D. D. Yovanovitch, J. Wyss, S. Miyashita, L. Holloway, S. Lusin, F. Happacher, P. T. Chang, Dario Bisello, A. Bhatti, S. Segler, G. Chiarelli, H. H. Williams, P. Yeh, Wendy Taylor, J. A.J. Matthews, J. Berryhill, J. Bao, Manfred Paulini, H. Nakada, B. T. Huffman, Scott D. Metzler, Marjorie Shapiro, S. Bagdasarov, Yanwen Liu, M. M. Deninno, W. Kowald, Maria Spiropulu, J. E. Elias, D. Saltzberg, C. Campagnari, Jun Lu, Mark Kruse, L. Rosenson, C. Pagliarone, S. Galeotti, D. Lucchesi, S. Lami, J. Patrick, M. Mangano, J. Wolinski, Jing Wang, G. Introzzi, A. Stefanini, M. Atac, W. Bokhari, J. C. Yun, O. Long, E. Buckley-Geer, P. Schlabach, M. Ninomiya, S. Rolli, Paul Tipton, Y. Ye, M. P. Schmidt, I. Nakano, T. Takada, J. D. Lewis, C. Wei, J. Hylen, L. Breccia, M. Loreti, B. Bevensee, Kevin Einsweiler, H. Wenzel, P. Sphicas, Yongsun Kim, G. W. Foster, Riccardo Paoletti, Nikos Giokaris, A. Maghakian, L. Yu, P. Sinervo, G. Velev, L. Santi, P. Koehn, C. Couyoumtzelis, T. Daniels, Kostantinos Kordas, T. Asakawa, Virgil E Barnes, D. Reher, P. Azzi-Bacchetta, C. Holck, H. Grassmann, Nicola Turini, A. T. Laasanen, R. E. Hughes, Petar Maksimovic, H. Sato, E. Kuns, C. Bromberg, M. Incagli, J. Lys, A. M. Walsh, N. B. Wallace, Gino Bolla, Jay Hauser, R. Roser, Stefano Belforte, L. E. Kirsch, T. Kaneko, Bj Kim, P. S. Chang, N. Tamura, E. Hayashi, Mosè Mariotti, G. Punzi, E. Engels, D. Winn, G. Giusti, Jay Dittmann, Henrik Jeldtoft Jensen, N. Uemura, F. DeJongh, B. Kharadia, Sacha E Kopp, D. Theriot, H. Minato, R. Ely, S. C. van den Brink, A. Perazzo, C. Ferretti, L. Ristori, B. Flaugher, J.I. Friedman, J. Proudfoot, J. Incandela, Umesh Joshi, J. Cooper, S. R. Hahn, A. Menzione, T. Song, T. Kuwabara, J. P. Marriner, S. H. Kim, K. L. Byrum, R. Thurman-Keup, Cyp Ngan, Michele Gallinaro, J. Iwai, M. Okabe, P. Giromini, J. Antos, J. Valls, T. Takano, W. Trischuk, S. E. Kuhlmann, K. Biery, J. N. Bellinger, Nicola Bacchetta, J. Romano, Konstanty Sumorok, J. Conway, G. Pauletta, Henry J. Frisch, F. Cervelli, K. Strahl, H. Kasha, S. Aota, Duncan Carlsmith, B. Hinrichsen, S. Worm, J. Gonzalez, F. Bedeschi, B. Harral, A. T. Goshaw, Daniel P Cronin-Hennessy, M. Contreras, A. Akopian, S. Tkaczyk, David Stuart, P. Kesten, M. Mishina, H. Mitsushio, F. Azfar, R. Ströhmer, A. Titov, A. Barbaro-Galtieri, L. Gladney, R. Oishi, M. Timko, Kevin Burkett, Jochen Jens Heinrich, L. Demortier, Hyun-Chul Kim, G. Piacentino, K. E. Ohl, E. Cocca, J. Skarha, D. Vucinic, T. A. Keaffaber, Kiminori Kondo, N. M. Shaw, S. Behrends, S. Errede, A. B. Wicklund, G. P. Yeh, C. Nelson, Y. Seiya, J. Kroll, A. Gordon, T. Ohsugi, F. Ukegawa, James Strait, I. Fiori, Tony Liss, M. Franklin, E. E. Schmidt, S. Delchamps, S. Bertolucci, Weiya Zhang, J. P. Berge, K. D. Hoffman, M. W. Bailey, R. K. Plunkett, A. Ribon, S. Funaki, S. B. Kim, H. Toyoda, W. K. Sakumoto, S. Miscetti, A. Caner, M. J. Shochet, P. Limon, S. Geer, Teresa Rodrigo, E. Kovacs, J. C. Freeman, L. Christofek, Marcus Hohlmann, John Huth, Le Zhang, P. Murat, M. Krasberg, A. Zanetti, J. Yoh, L. Nodulman, T. Chikamatsu, T. J. Phillips, Y. Morita, S. Tether, E. Barzi, E. S. Hafen, F. Ptohos, W. J. Robertson, P. K. Teng, P. Lukens, Th. Müller, G. Bauer, A. D. Hardman, F. D. Snider, Avraham Yagil, Douglas Benjamin, C. Grosso-Pilcher, G. Feild, Marina Cobal, Q. Fan, J. Cammerata, G. Sullivan, V. Papadimitriou, S. R. Amendolia, K. Sliwa, A. Tollestrup, K. Tollefson, D. Crane, T. Miyamoto, D. W. Gerdes, V. Bolognesi, M. J. Wang, T. Miao, R. Vidal, M. Campbell, M. D. Peters, P. Giannetti, R. Demina, A. Byon-Wagner, F. Tartarelli, Y. Iwata, Daniela Bortoletto, T. Devlin, R. Handler, R. Oliveira, R. P. Thun, Q. F. Wang, J. Steele, Andrey Korytov, N. Eddy, O. Ganel, Jose M. Benlloch, R. J. Hollebeek, G. Bellettini, D. Errede, J. I. Lamoureux, N. Bruner, P. F. Shepard, S. H. Oh, Kazuhiko Hara, S. Dell'Agnello, R. M. Hans, Xin Wu, L. Pescara, R. D. Kennedy, N. S. Lockyer, Y. Kato, D. Neuberger, G. Guillian, Yasuo Fukui, K. T. Pitts, Fumio Abe, Y. Cen, C. N. Chiou, T. Okusawa, J. Siegrist, Hong Sj, Catherine Newman-Holmes, K. Takikawa, T. Speer, B. A. Barnett, S. A. Hauger, G. Michail, J. Done, Giorgio Apollinari, J. Huston, J. R. Bensinger, L. Groer, Alan Garfinkel, J. Suzuki, P. McIntyre, R. Wilkinson, J. F. de Troconiz, Teruki Kamon, S. Truitt, Craig Blocker, Kaori Maeshima, G. Houk, D. Glenzinski, Hiroto Kambara, Y. Teramoto, H. Keutelian, Hiroshi Ikeda, P. Wilson, R. Culbertson, R. C. Webb, D. Amidei, T. L. Thomas, J. Mansour, R. Mattingly, N. Moggi, A. Bodek, Jacobo Konigsberg, C. Yosef, M. T. Cheng, T. Uchida, Y. Gotra, N. Parashar, R. L. Wagner, K. Goulianos, R. Hamilton, M. Pillai, M. Vondracek, C. Loomis, P. de Barbaro, K. Ragan, R. W. Kadel, D. Toback, T. Saab, Andrea Sansoni, Sally Seidel, S. Donati, K. Yasuoka, W. Ashmanskas, W. Koska, Andrew Beretvas, F. Spinella, M. Gold, Intae Yu, T. Ohmoto, M. Garcia-Sciveres, R. J. Miller, M. Frautschi, A. Mukherjee, Leonard Spiegel, Tomoko Yoshida, H. Y. Chao, F. Keyvan, James D. Olsen, J. Spalding, W. C. Wester, Tommaso Dorigo, Robert M Harris, F. Zetti, C. Hawk, R. Vilar, H. Akimoto, Andrea Castro, T. L. Watts, R. Kephart, P. Hu, K. Karr, Alan Sill, G. Unal, D. Wolinski, K. Kelley, S. Leone, H. S. Budd, Doyeong Kim, C. Miao, M. Shimojima, T. Baumann, Andreas Warburton, A. Scribano, M. Cordelli, G. Busetto, Brian L Winer, R. G. Wagner, G. Sganos, S. P. Pappas, J. B. Liu, M. Binkley, Q. Shen, M. G. Albrow, E. Kajfasz, S. Zucchelli, R. E. Blair, F. Rimondi, J. Tseng, J. Boudreau, W-M. Yao, M. Yin, E. Meschi, Sung Keun Park, A. Dunn, R. S. Guo, P. F. Derwent, M. Lancaster, S. Vejcik, P. Melese, T. Takahashi, J. W. Chapman, Luca Stanco, C. Haber, P. Singh, A. Parri, D. Kestenbaum, and M. Dell'Orso

Subjects
Quark, Nuclear physics, Physics, Particle physics, Gauge boson, Branching fraction, Physics beyond the Standard Model, Hadron, General Physics and Astronomy, High Energy Physics::Experiment, Lepton, Standard Model, Boson
Abstract

We have searched for heavy neutral gauge bosons (2’) in jjp collisions at Js = 1.8 TeV. The data were obtained using the CDF detector during 19921993 run corresponding to an integrated luminosity of 19.7f0.7 pb-‘. We present a 95% confidence level upper limit on the production cross section times branching ratio of 2’ decaying into dielectrons as a function of 2’ mass. Assuming Standard Model coupling strengths, we exclude a 2’ with mass less than 505 GeV/c 2. We also present lower mass limits for 2’ bosons from & models and the Alternative Left-Right Model. PACS numbers: 13.85.Rm, 12.15.Cc, 14.80.Er Neutral gauge bosons in addition to the 2’ are expected in many extensions of the Standard Model [l]. These models typically specify the strengths of the couplings of such bosons to quarks and leptons but make no mass predictions [2]. In up collisions, 2’ bosons may be observed directly via their decay to lepton pairs. Observation of a 2’ boson would provide dramatic evidence for physics beyond the Standard Model. To date there is no experimental evidence for the existence of any 2’ [3]. The current experimental 2’ mass limit Mzt > 412 GeV/c2 (95% C.L.) was established by the CDF collaboration [4] with the assumption that the coupling strengths of the 2’ to quarks and leptons were the same as those for the Standard Model (SM) 2’. This result was based upon data collected during the 1988-89 run with an integrated luminosity of 4 pb-’ and used both the dielectron [5] and dimuon decay modes. We report an extension of this search using 19.7 pb* of integrated luminosity from the 1992-93 run. Results reported here are obtained using only the dielectron decay mode. We present a 95% confidence level upper limit on the production cross section times branching ratio of 2’ decaying into dielectrons (g(Z) . B(Z’ + ee)). Mass limits are 5 again derived assuming SM coupling strengths. In addition, we present 2’ mass limits using several different theoretical models based on the Es symmetry group [6][‘7] and one limit based upon an Alternative Left-Right Model [8]. The CDF detector has been described in detail elsewhere [9]. We give a brief description of the components relevant to this analysis. Momenta of charged particles are measured in the Central Tracking Chamber (CTC), which is immersed in a 1.4 T axial magnetic field. Outside the CTC, electromagnetic and hadronic calorimeters are arranged in a projective tower geometry. There are three separate pseudorapidity (7) regions of calorimeters, central, end-plug, and forward, where 7 = ln(tan $) and 0 is the polar angle with respect to the direction of the proton beam. Each region has an electromagnetic calorimeter and behind it a hadronic calorimeter. For this analysis we use electrons detected in the central (CEM) or end-plug (PEM) regions. The CEM covers ]q] 9 GeV or an energy cluster in the PEM with ET > 20 GeV. If the cluster was in the CEM the trigger also required a coincidence with a track of transverse momentum PT > 9.2 GeV/c. In addition, the trigger required that the ratio of hadronic to electromagnetic energy (HAD/EM) in the trigger cluster be less than 12.5%. For electrons with 25 150 GeV), the energy deposited

Published
1997

10. Measurement of theB+andB0Lifetimes Using Topological Reconstruction of Inclusive and Semileptonic Decays

Author

G. Grieco, E. Engels, Sangjin Kim, R. W. Kadel, M. L. Miller, R. Kephart, R. E. Blair, E. H. Low, P. Lukens, D. W. Gerdes, M. W. Bailey, D. Bortoletto, Y. Morita, D. Crane, X. Wu, Y. Cen, A. Barbaro-Galtieri, L. Rosenson, W. Yao, D. Benton, A. Stefanini, D. Yovanovitch, C. Newman-Holmes, M. Timko, A. Sansoni, T. Kaneko, O. Schneider, A. Caner, A. Menzione, T. Kamon, J. Wyss, J. Freeman, A. Hölscher, S. Vejcik, D. Benjamin, H. Keutelian, S. Donati, D. A. Smith, B. Harral, J. Gonzalez, J. Bellinger, K. Ragan, K. Kordas, N. Turini, E. Kuns, R. L. Wagner, C. Campagnari, G. Unal, P. Auchincloss, S. Zhang, E. Buckley-Geer, P. Koehn, K. Goulianos, T. J. Phillips, T. Chikamatsu, S. Funaki, J. Hauser, L. Gladney, S. Zucchelli, J. Romano, W. Koska, J. F. de Troconiz, A. Schindler, S. Hong, G. W. Foster, T. Westhusing, S. Seidel, Q. Shen, L. Groer, L. Pescara, A. Grewal, F. Rimondi, S. Tether, P. Hurst, S. Eno, M. Mishina, L. Nodulman, A. Titov, B. Denby, Y. Teramoto, P. Melese, W. K. Sakumoto, O. Long, D. Errede, L. Holloway, S. Mikamo, R. C. Webb, R. M. Keup, K. Sliwa, A. B. Wicklund, A. Zanetti, C. Haber, W. J. Robertson, F. Abe, J. Heinrich, I. Fiori, R. Hollebeek, M. Campbell, D. A. Kardelis, G. Houk, A. Castro, G. Chiarelli, Y. K. Kim, G. Busetto, M. Shimojima, D. Saltzberg, A. Tollestrup, M. Shochet, J. P. Berge, R. Ely, C. Pagliarone, D. Bisello, M. Gold, V. Papadimitriou, K. Kondo, C. B. Luchini, E. Kovacs, A. F. Garfinkel, H. Kasha, A. Fry, P. Bartalini, F. Ptohos, J. Bao, S. Segler, N. Bacchetta, Marina Cobal, T. Lecompte, C. Boswell, W. Badgett, K. Strahl, H. S. Kim, C. Anway-Wiese, E. Meschi, D. Neuberger, H. H. Williams, I. Nakano, S. Dell'Agnello, F. Azfar, J. D. Cunningham, S. Behrends, G. Apollinari, T. Boulos, T. Takahashi, J. Spalding, S. Ogawa, S. E. Kuhlmann, C. Wendt, S. A. Hauger, H. Mitsushio, P. F. Shepard, L. Keeble, Richard Hughes, P. Sinervo, V. E. Barnes, J. Konigsberg, J. Tseng, J. P. Marriner, M. Frautschi, A. J. Martin, T. Okusawa, A. Maghakian, D. Glenzinski, R. Oishi, H. Frisch, J. Proudfoot, D. Carlsmith, K. Biery, T. Rodrigo, P. Giromini, R. B. Drucker, A. G. Clark, R. M. Hans, J. Yoh, M. Franklin, J. Siegrist, R. C. Walker, M. Shapiro, J. Strait, F. D. Snider, J. Wolinski, D. Theriot, P. Wilson, J. Kroll, L. F. Nakae, J. Friedman, A. Beretvas, G. P. Yeh, M. Contreras, G. F. Sciacca, John Wehrley Chapman, G. Bellettini, W. Zhang, R. Paoletti, A. Gordon, F. Bird, Tony Liss, H. S. Budd, R. Handler, P. Maas, F. Keyvan, Y. Fukui, D. Y. Wu, S. Cihangir, J. Incandela, Jose M. Benlloch, P. Musgrave, S. Park, P. F. Derwent, J. Huston, I. Yu, S. Miscetti, Peter McIntyre, G. Pauletta, D. Lucchesi, G. Watts, P. Limon, E. Wicklund, M. Binkley, T. Baumann, C. Hawk, A. Scribano, M. Incagli, S. Errede, G. Brandenburg, J. Skarha, M. D. Peters, S. Belforte, L. Pondrom, J. Patrick, R. Vidal, T. Yoshida, H. Areti, J. Tonnison, D. P. Coupal, S. Kopp, K. Burkett, K. Sumorok, T. Song, Y. Kato, M. Turcotte, S. Lammel, P. Schlabach, Mark Kruse, A. Bhatti, L. Ristori, R. M. Harris, R. Wilkinson, L. E. Kirsch, N. Lockyer, K. Takikawa, J. Mansour, M. G. Albrow, R. L. Swartz, J. D. Lewis, C. Grosso-Pilcher, J. I. Lamoureux, A. Yagil, R. Thun, K. L. Byrum, L. Song, M. P. Schmidt, R. Mattingly, A. T. Goshaw, K. Yasuoka, K. Einsweiler, S. Miyashita, H. Iso, T. Devlin, G. Gagliardi, Paul Tipton, M. Dell'Orso, R. G. Wagner, K. Hara, G. Michail, W. Carithers, E. E. Schmidt, J. Steele, N. Produit, E. Kajfasz, H. Wenzel, C. Nelson, M. Vondracek, B. Flaugher, A. Warburton, C. P. Jessop, H. Grassmann, F. Dejongh, S. H. Kim, U. Joshi, P. Sphicas, S. Geer, B. T. Huffman, D. Hennessy, N. M. Shaw, B. A. Barnett, K. Maeshima, L. Demortier, B. L. Winer, G. Piacentino, J. Huth, A. Etchegoyen, L. Stanco, J. Mueller, M. Krasberg, M. Yin, M. Mariotti, N. Wainer, M. Cordelli, F. Cervelli, D. Kestenbaum, D. Amidei, W. C. Wester, F. Tartarelli, D. H. Kim, P. Giannetti, T. Mimashi, J. R. Cooper, J. Hylen, J. E. Elias, G. Bauer, F. Bedeschi, N. Uemura, M. Lindgren, G. Punzi, F. Ukegawa, A. Mukherjee, C. Blocker, Qian Wang, S. Moulding, A. Sill, A. Spies, P. Singh, M. Roach-Bellino, V. Bolognesi, M. Mangano, J. C. Yun, G. Sganos, S. Leone, A. Dunn, J. A J Matthews, M. Pillai, Q. Fan, Y. Ye, H. Jensen, V. Scarpine, P. de Barbaro, M. Deninno, R. Plunkett, M. Gallinaro, T. Daniels, J. Wang, M. Dickson, G. Sullivan, F. Zetti, R. Hamilton, M. Loreti, P. Kesten, J. H. Thomas, P. Azzi, S. R. Hahn, B. Farhat, A. Bodek, A. Byon-Wagner, R. D. Kennedy, Y. Seiya, A. T. Laasanen, J. P. Done, T. Watts, S. Tkaczyk, S. Bertolucci, T. Muller, K. E. Ohl, P. Hu, T. A. Fuess, and N. Giokaris

Subjects
Physics, Semileptonic decay, Particle physics, Meson, Branching fraction, Electron–positron annihilation, Hadron, General Physics and Astronomy, Elementary particle, Nuclear physics, Particle decay, High Energy Physics::Experiment, B meson, Collider Detector at Fermilab, Boson
Abstract

The lifetimes of the ${\mathit{B}}^{+}$ and ${\mathit{B}}^{0}$ mesons have been measured using fully reconstructed decays. In a sample of \ensuremath{\sim}49 600J/\ensuremath{\psi}\ensuremath{\rightarrow}${\mathrm{\ensuremath{\mu}}}^{+}$${\mathrm{\ensuremath{\mu}}}^{\mathrm{\ensuremath{-}}}$ decays recorded with the Collider Detector at Fermilab, 148\ifmmode\pm\else\textpm\fi{}16 ${\mathit{B}}^{+}$ and 121\ifmmode\pm\else\textpm\fi{}16${\mathit{B}}^{0}$ mesons have been reconstructed using the silicon vertex detector. Unbinned likelihood fits to the proper lifetime distributions of these B mesons give ${\mathrm{\ensuremath{\tau}}}^{+}$=1.61\ifmmode\pm\else\textpm\fi{}0.16 (stat)\ifmmode\pm\else\textpm\fi{}0.05 (syst) ps, ${\mathrm{\ensuremath{\tau}}}^{0}$=1.57\ifmmode\pm\else\textpm\fi{}0.18 (stat) \ifmmode\pm\else\textpm\fi{}0.08 (syst) ps, and ${\mathrm{\ensuremath{\tau}}}^{+}$/${\mathrm{\ensuremath{\tau}}}^{0}$=1.02\ifmmode\pm\else\textpm\fi{}0.16 (stat) \ifmmode\pm\else\textpm\fi{}0.05 (syst).

Published
1997

11. J/ψandψ(2S)Production inpp¯Collisions at√s=1.8TeV

Author

T. Baumann, S. Bertolucci, W. Carithers, Weiya Zhang, M. Cordelli, G. Busetto, Brian L Winer, J. P. Berge, R. G. Wagner, N. Tamura, J. Berryhill, J. Bao, M. Okabe, G. Sganos, S. P. Pappas, L. Christofek, S. E. Kuhlmann, Doyeong Kim, C. Miao, Peter McIntyre, S. Zucchelli, R. E. Blair, F. Rimondi, N. M. Shaw, G. Pauletta, M. Contreras, F. Ptohos, W. J. Robertson, P. Lukens, R. W. Kadel, M. Campbell, M. D. Peters, P. Giannetti, N. B. Wallace, B. Flaugher, J. Incandela, T. Takano, J. Conway, P. Kesten, C. Pagliarone, B. Kharadia, R. Ströhmer, S. Galeotti, A. Titov, P. Melese, Kiminori Kondo, J. Yoh, R. Handler, G. Sullivan, V. Papadimitriou, S. Dell'Agnello, Stephan Lammel, D. Lucchesi, A. Perazzo, S. Vejcik, P. Koehn, J. Wolinski, R. L. Wagner, T. Takada, T. Ohsugi, J. Kroll, S. R. Hahn, James Strait, J. D. Lewis, T. Kaneko, J. Iwai, Jay Dittmann, D. D. Yovanovitch, J. Wyss, K. Goulianos, L. Breccia, G. Feild, M. J. Shochet, M. Shimojima, T. L. Thomas, G. Chiarelli, Chris Wendt, R. Oliveira, R. P. Thun, Q. F. Wang, J. Steele, M. M. Deninno, F. DeJongh, Marjorie Shapiro, O. Long, D. Cauz, W-M. Yao, Andrey Korytov, M. Yin, E. Meschi, Sung Keun Park, L. Pescara, J. Antos, P. Sphicas, Y. Teramoto, Kostantinos Kordas, J. Valls, Konstanty Sumorok, Michele Gallinaro, P. Yeh, H. Y. Chao, R. Hamilton, M. Pillai, R. E. Hughes, H. H. Williams, E. Buckley-Geer, G. Velev, A. Zanetti, Riccardo Paoletti, F. Keyvan, F. Tartarelli, Virgil E Barnes, C. Ferretti, Andreas Warburton, M. Mishina, M. Vondracek, C. Loomis, P. de Barbaro, Petar Maksimovic, E. Kuns, Lawrence Nodulman, T. Takahashi, James Mueller, Luca Stanco, W. Kowald, G. Introzzi, A. Stefanini, L. Yu, P. Sinervo, S. B. Kim, M. Atac, Wendy Taylor, H. Sato, J. A.J. Matthews, N. Moggi, S. Segler, S. Worm, M. Franklin, B. T. Huffman, S. Tkaczyk, David Stuart, K. Ragan, A. T. Goshaw, D. Winn, D. Toback, B. A. Barnett, L. Keeble, D. Reher, M. Mangano, Giorgio Apollinari, H. Mitsushio, F. Azfar, S. Bagdasarov, R. K. Plunkett, T. Saab, Maria Spiropulu, C. Haber, Sally Seidel, A. Scribano, Teruki Kamon, S. Truitt, Jacobo Konigsberg, James D. Olsen, T. Asakawa, P. Murat, M. Krasberg, T. Kuwabara, S. Funaki, P. K. Teng, Craig Blocker, T. Song, G. P. Yeh, J. Spalding, S. C. van den Brink, T. Chikamatsu, M. Ninomiya, S. Rolli, Tony Liss, E. Cocca, G. Giusti, C. Wei, S. Behrends, Kaori Maeshima, N. Uemura, D. Saltzberg, G. Houk, J. Tseng, J. C. Freeman, S. Errede, Hiroto Kambara, Bj Kim, Teresa Rodrigo, M. T. Cheng, A. B. Wicklund, G. Bauer, G. Punzi, E. Engels, A. D. Hardman, F. D. Snider, P. S. Chang, W. C. Wester, C. Campagnari, A. M. Walsh, P. Wilson, J. P. Marriner, A. Akopian, T. J. Phillips, S. Miscetti, Y. Morita, R. Oishi, M. Barone, Maurice Garcia-Sciveres, M. Loreti, J. Boudreau, M. Timko, Andrea Sansoni, S. Donati, Marina Cobal, D. W. Gerdes, L. Demortier, J. Skarha, Avraham Yagil, Gino Bolla, Cyp Ngan, T. Yoshida, M. W. Bailey, M. Binkley, Q. Shen, M. G. Albrow, G. Bellettini, E. E. Schmidt, K. Strahl, T. Muller, S. Delchamps, K. Yasuoka, R. Kephart, W. Ashmanskas, E. Kajfasz, A. Menzione, Robert M Harris, P. Limon, John Huth, W. Koska, A. G. Clark, S. Aota, F. Spinella, T. Daniels, K. D. Hoffman, J. W. Chapman, M. Gold, Y. Gotra, Y. Seiya, E. Kovacs, E. Hafen, A. Dunn, R. S. Guo, H. Akimoto, Andrea Castro, Leonard Spiegel, N. Parashar, Jun Lu, Mark Kruse, Nicola Turini, P. F. Derwent, A. T. Laasanen, Andrew Beretvas, P. Hu, K. Karr, Paul Tipton, B. Bevensee, G. Unal, M. Frautschi, S. Lami, Intae Yu, Marcus Hohlmann, Jochen Jens Heinrich, A. Gordon, Kevin Einsweiler, Le Zhang, T. Ohmoto, R. J. Miller, Y. Iwata, Daniela Bortoletto, D. Errede, A. Mukherjee, J. Lys, T. Uchida, E. Hayashi, A. Hölscher, H. Wenzel, F. Ukegawa, R. Roser, C. H. Wang, M. Lindgren, Mosè Mariotti, Emanuela Barzi, Y. Kato, G. Guillian, Fumio Abe, B. Tannenbaum, Thomas LeCompte, K. T. Pitts, Tommaso Dorigo, K. Takikawa, Catherine Newman-Holmes, A. Ribon, J.I. Friedman, T. Speer, L. Holloway, K. E. Ohl, Scott D. Metzler, S. A. Hauger, J. Patrick, M. Incagli, J. F. de Troconiz, D. Glenzinski, Hiroshi Ikeda, G. Piacentino, R. C. Webb, F. Zetti, C. Hawk, D. Theriot, H. Keutelian, R. Culbertson, D. Neuberger, W. K. Sakumoto, Jay Hauser, R. Vilar, S. Tether, S. Geer, T. L. Watts, P. Singh, K. Tollefson, A. Parri, J. Mansour, R. Mattingly, D. Kestenbaum, M. Dell'Orso, Duncan Carlsmith, Sacha E Kopp, A. J. Martin, L. Pondrom, E. Wicklund, A. Bodek, H. Minato, C. Grosso-Pilcher, R. Ely, C. Holck, J. E. Elias, J. N. Bellinger, C. Yosef, Daniel P Cronin-Hennessy, Alan Sill, R. Vidal, W. Badgett, Kevin Burkett, L. Rosenson, Umesh Joshi, N. Bruner, Q. Fan, D. Wolinski, J. Cooper, R. M. Keup, K. Kelley, S. Leone, J. Cammerata, A. Tollestrup, P. F. Shepard, S. H. Kim, H. S. Budd, S. H. Oh, T. Devlin, L. E. Kirsch, Jose M. Benlloch, A. Byon-Wagner, N. Eddy, O. Ganel, R. J. Hollebeek, T. Miyamoto, J. I. Lamoureux, S. R. Amendolia, K. Sliwa, M. J. Wang, T. Miao, D. Crane, G. Michail, L. Groer, Alan Garfinkel, James Bensinger, R. D. Kennedy, R. M. Hans, V. Bolognesi, J. Suzuki, Kazuhiko Hara, R. Wilkinson, Yasuo Fukui, Xin Wu, T. Okusawa, J. Siegrist, J. Done, J. Huston, Hong Sj, N. S. Lockyer, F. Cervelli, Y. Cen, C. N. Chiou, C. Nelson, Douglas Benjamin, R. Demina, S. Lusin, F. Happacher, P. T. Chang, Dario Bisello, A. Bhatti, Hyun-Chul Kim, S. Miyashita, D. Amidei, J. Wahl, Yanwen Liu, A. Barbaro-Galtieri, L. Gladney, A. Caner, D. Vucinic, T. A. Keaffaber, D. Benton, P. Schlabach, S. Cihangir, Y. Ye, K. Biery, J. Hylen, Manfred Paulini, H. Nakada, G. W. Foster, I. Fiori, W. Bokhari, J. C. Yun, Yongsun Kim, Nikos Giokaris, A. Maghakian, James Proudfoot, H. Grassmann, K. L. Byrum, P. Giromini, H. Kasha, B. Hinrichsen, M. P. Schmidt, I. Nakano, J. C. Wang, L. Santi, C. Couyoumtzelis, P. Azzi-Bacchetta, C. Bromberg, Stefano Belforte, Henrik Jeldtoft Jensen, L. Ristori, W. Trischuk, Nicola Bacchetta, J. Romano, J. Gonzalez, F. Bedeschi, and B. Harral

Subjects
Physics, Particle physics, Meson, Collider physics, High Energy Physics::Phenomenology, Hadron, Transverse momentum, General Physics and Astronomy, High Energy Physics::Experiment, Nuclear Experiment, Central region
Abstract

We present a study of $J/\ensuremath{\psi}$ and $\ensuremath{\psi}(2S)$ production in $p\overline{p}$ collisions, at $\sqrt{s}\phantom{\rule{0ex}{0ex}}=\phantom{\rule{0ex}{0ex}}1.8\mathrm{TeV}$ with the CDF detector at Fermilab. The $J/\ensuremath{\psi}$ and $\ensuremath{\psi}(2S)$ mesons are reconstructed using their ${\ensuremath{\mu}}^{+}{\ensuremath{\mu}}^{\ensuremath{-}}$ decay modes. We have measured the inclusive production cross section for both mesons as a function of their transverse momentum in the central region, $|\ensuremath{\eta}|l0.6$. We also measure the fraction of these events originating from $b$ hadrons. We thus extract individual cross sections for $J/\ensuremath{\psi}$ and $\ensuremath{\psi}(2S)$ mesons from $b$-quark decays and prompt production. We find a large excess (approximately a factor of 50) of direct $\ensuremath{\psi}(2S)$ production compared with predictions from the color singlet model.

Published
1997

12. Production ofJ/ψMesons fromχcMeson Decays inpp¯Collisions at√s=1.8TeV

Author

F. Abe, H. Akimoto, A. Akopian, M. G. Albrow, S. R. Amendolia, D. Amidei, J. Antos, S. Aota, G. Apollinari, T. Asakawa, W. Ashmanskas, M. Atac, F. Azfar, P. Azzi-Bacchetta, N. Bacchetta, W. Badgett, S. Bagdasarov, M. W. Bailey, J. Bao, P. de Barbaro, A. Barbaro-Galtieri, V. E. Barnes, B. A. Barnett, M. Barone, E. Barzi, G. Bauer, T. Baumann, F. Bedeschi, S. Behrends, S. Belforte, G. Bellettini, J. Bellinger, D. Benjamin, J. Benlloch, J. Bensinger, D. Benton, A. Beretvas, J. P. Berge, J. Berryhill, S. Bertolucci, B. Bevensee, A. Bhatti, K. Biery, M. Binkley, D. Bisello, R. E. Blair, C. Blocker, A. Bodek, W. Bokhari, V. Bolognesi, G. Bolla, D. Bortoletto, J. Boudreau, L. Breccia, C. Bromberg, N. Bruner, E. Buckley-Geer, H. S. Budd, K. Burkett, G. Busetto, A. Byon-Wagner, K. L. Byrum, J. Cammerata, C. Campagnari, M. Campbell, A. Caner, W. Carithers, D. Carlsmith, A. Castro, D. Cauz, Y. Cen, F. Cervelli, P. S. Chang, P. T. Chang, H. Y. Chao, J. Chapman, M.-T. Cheng, G. Chiarelli, T. Chikamatsu, C. N. Chiou, L. Christofek, S. Cihangir, A. G. Clark, M. Cobal, E. Cocca, M. Contreras, J. Conway, J. Cooper, M. Cordelli, C. Couyoumtzelis, D. Crane, D. Cronin-Hennessy, R. Culbertson, T. Daniels, F. DeJongh, S. Delchamps, S. Dell'Agnello, M. Dell'Orso, R. Demina, L. Demortier, M. Deninno, P. F. Derwent, T. Devlin, J. R. Dittmann, S. Donati, J. Done, T. Dorigo, A. Dunn, N. Eddy, K. Einsweiler, J. E. Elias, R. Ely, E. Engels, Jr., D. Errede, S. Errede, Q. Fan, G. Feild, C. Ferretti, I. Fiori, B. Flaugher, G. W. Foster, M. Franklin, M. Frautschi, J. Freeman, J. Friedman, H. Frisch, Y. Fukui, S. Funaki, S. Galeotti, M. Gallinaro, O. Ganel, M. Garcia-Sciveres, A. F. Garfinkel, C. Gay, S. Geer, D. W. Gerdes, P. Giannetti, N. Giokaris, P. Giromini, G. Giusti, L. Gladney, D. Glenzinski, M. Gold, J. Gonzalez, A. Gordon, A. T. Goshaw, Y. Gotra, K. Goulianos, H. Grassmann, L. Groer, C. Grosso-Pilcher, G. Guillian, R. S. Guo, C. Haber, E. Hafen, S. R. Hahn, R. Hamilton, R. Handler, R. M. Hans, F. Happacher, K. Hara, A. D. Hardman, B. Harral, R. M. Harris, S. A. Hauger, J. Hauser, C. Hawk, E. Hayashi, J. Heinrich, B. Hinrichsen, K. D. Hoffman, M. Hohlmann, C. Holck, R. Hollebeek, L. Holloway, A. Hölscher, S. Hong, G. Houk, P. Hu, B. T. Huffman, R. Hughes, J. Huston, J. Huth, J. Hylen, H. Ikeda, M. Incagli, J. Incandela, G. Introzzi, J. Iwai, Y. Iwata, H. Jensen, U. Joshi, R. W. Kadel, E. Kajfasz, H. Kambara, T. Kamon, T. Kaneko, K. Karr, H. Kasha, Y. Kato, T. A. Keaffaber, L. Keeble, K. Kelley, R. D. Kennedy, R. Kephart, P. Kesten, D. Kestenbaum, R. M. Keup, H. Keutelian, F. Keyvan, B. Kharadia, B. J. Kim, D. H. Kim, H. S. Kim, S. B. Kim, S. H. Kim, Y. K. Kim, L. Kirsch, P. Koehn, K. Kondo, J. Konigsberg, S. Kopp, K. Kordas, A. Korytov, W. Koska, E. Kovacs, W. Kowald, M. Krasberg, J. Kroll, M. Kruse, T. Kuwabara, S. E. Kuhlmann, E. Kuns, A. T. Laasanen, S. Lami, S. Lammel, J. I. Lamoureux, T. LeCompte, S. Leone, J. D. Lewis, P. Limon, M. Lindgren, T. M. Liss, Y. C. Liu, N. Lockyer, O. Long, C. Loomis, M. Loreti, J. Lu, D. Lucchesi, P. Lukens, S. Lusin, J. Lys, K. Maeshima, A. Maghakian, P. Maksimovic, M. Mangano, J. Mansour, M. Mariotti, J. P. Marriner, A. Martin, J. A. J. Matthews, R. Mattingly, P. McIntyre, P. Melese, A. Menzione, E. Meschi, S. Metzler, C. Miao, T. Miao, G. Michail, R. Miller, H. Minato, S. Miscetti, M. Mishina, H. Mitsushio, T. Miyamoto, S. Miyashita, N. Moggi, Y. Morita, J. Mueller, A. Mukherjee, T. Muller, P. Murat, H. Nakada, I. Nakano, C. Nelson, D. Neuberger, C. Newman-Holmes, C-Y. P. Ngan, M. Ninomiya, L. Nodulman, S. H. Oh, K. E. Ohl, T. Ohmoto, T. Ohsugi, R. Oishi, M. Okabe, T. Okusawa, R. Oliveira, J. Olsen, C. Pagliarone, R. Paoletti, V. Papadimitriou, S. P. Pappas, N. Parashar, S. Park, A. Parri, J. Patrick, G. Pauletta, M. Paulini, A. Perazzo, L. Pescara, M. D. Peters, T. J. Phillips, G. Piacentino, M. Pillai, K. T. Pitts, R. Plunkett, L. Pondrom, J. Proudfoot, F. Ptohos, G. Punzi, K. Ragan, D. Reher, A. Ribon, F. Rimondi, L. Ristori, W. J. Robertson, T. Rodrigo, S. Rolli, J. Romano, L. Rosenson, R. Roser, T. Saab, W. K. Sakumoto, D. Saltzberg, A. Sansoni, L. Santi, H. Sato, P. Schlabach, E. E. Schmidt, M. P. Schmidt, A. Scribano, S. Segler, S. Seidel, Y. Seiya, G. Sganos, M. D. Shapiro, N. M. Shaw, Q. Shen, P. F. Shepard, M. Shimojima, M. Shochet, J. Siegrist, A. Sill, P. Sinervo, P. Singh, J. Skarha, K. Sliwa, F. D. Snider, T. Song, J. Spalding, T. Speer, P. Sphicas, F. Spinella, M. Spiropulu, L. Spiegel, L. Stanco, J. Steele, A. Stefanini, K. Strahl, J. Strait, R. Ströhmer, D. Stuart, G. Sullivan, K. Sumorok, J. Suzuki, T. Takada, T. Takahashi, T. Takano, K. Takikawa, N. Tamura, B. Tannenbaum, F. Tartarelli, W. Taylor, P. K. Teng, Y. Teramoto, S. Tether, D. Theriot, T. L. Thomas, R. Thun, M. Timko, P. Tipton, A. Titov, S. Tkaczyk, D. Toback, K. Tollefson, A. Tollestrup, H. Toyoda, W. Trischuk, J. F. de Troconiz, S. Truitt, J. Tseng, N. Turini, T. Uchida, N. Uemura, F. Ukegawa, G. Unal, J. Valls, S. C. van den Brink, S. Vejcik III, G. Velev, R. Vidal, R. Vilar, M. Vondracek, D. Vucinic, R. G. Wagner, R. L. Wagner, J. Wahl, N. B. Wallace, A. M. Walsh, C. Wang, C. H. Wang, J. Wang, M. J. Wang, Q. F. Wang, A. Warburton, T. Watts, R. Webb, C. Wei, C. Wendt, H. Wenzel, W. C. Wester III, A. B. Wicklund, E. Wicklund, R. Wilkinson, H. H. Williams, P. Wilson, B. L. Winer, D. Winn, D. Wolinski, J. Wolinski, S. Worm, X. Wu, J. Wyss, A. Yagil, W. Yao, K. Yasuoka, Y. Ye, G. P. Yeh, P. Yeh, M. Yin, J. Yoh, C. Yosef, T. Yoshida, D. Yovanovitch, I. Yu, L. Yu, J. C. Yun, A. Zanetti, F. Zetti, L. Zhang, W. Zhang, and S. Zucchelli

Subjects
Physics, Nuclear physics, Meson, Collider physics, High Energy Physics::Lattice, High Energy Physics::Phenomenology, Hadron, General Physics and Astronomy, High Energy Physics::Experiment, Singlet state, Nuclear Experiment
Abstract

We have measured the fraction of J/{psi} mesons originating from X{sub c} meson decays in p{ovr p} collisions at sqrt[s] = 1.8 TeV. The fraction, for P{sub T}{sup J/{psi}}>4.0 GeV/c and |{eta}{sup J/{psi}}| < 0.6, not including contributions from b flavored hadrons, is 29.7%{+-}1.7%(stat){+-}5.7%(syst). We have determined the cross sections for J/{psi} mesons originating from X{sub c} decays and for directly produced J/{psi} mesons. We have found that direct J/{psi} production is in excess of the prediction of the color singlet model by the same factor found for direct {psi}(2S) production.

Published
1997

13. Measurement of theB−andB¯0Meson Lifetimes Using Semileptonic Decays

Author

F. Abe, H. Akimoto, A. Akopian, M. G. Albrow, S. R. Amendolia, D. Amidei, J. Antos, C. Anway-Wiese, S. Aota, G. Apollinari, T. Asakawa, W. Ashmanskas, M. Atac, F. Azfar, P. Azzi-Bacchetta, N. Bacchetta, W. Badgett, S. Bagdasarov, M. W. Bailey, J. Bao, P. de Barbaro, A. Barbaro-Galtieri, V. E. Barnes, B. A. Barnett, E. Barzi, G. Bauer, T. Baumann, F. Bedeschi, S. Behrends, S. Belforte, G. Bellettini, J. Bellinger, D. Benjamin, J. Benlloch, J. Bensinger, D. Benton, A. Beretvas, J. P. Berge, J. Berryhill, S. Bertolucci, A. Bhatti, K. Biery, M. Binkley, D. Bisello, R. E. Blair, C. Blocker, A. Bodek, W. Bokhari, V. Bolognesi, D. Bortoletto, J. Boudreau, L. Breccia, C. Bromberg, N. Bruner, E. Buckley-Geer, H. S. Budd, K. Burkett, G. Busetto, A. Byon-Wagner, K. L. Byrum, J. Cammerata, C. Campagnari, M. Campbell, A. Caner, W. Carithers, D. Carlsmith, A. Castro, D. Cauz, Y. Cen, F. Cervelli, P. Auchincloss, H. Y. Chao, J. Chapman, M.-T. Cheng, G. Chiarelli, T. Chikamatsu, C. N. Chiou, L. Christofek, S. Cihangir, A. G. Clark, M. Cobal, M. Contreras, J. Conway, J. Cooper, M. Cordelli, C. Couyoumtzelis, D. Crane, D. Cronin-Hennessy, R. Culbertson, J. D. Cunningham, T. Daniels, F. DeJongh, S. Delchamps, S. Dell'Agnello, M. Dell'Orso, L. Demortier, B. Denby, M. Deninno, P. F. Derwent, T. Devlin, J. R. Dittmann, S. Donati, J. Done, T. Dorigo, A. Dunn, N. Eddy, K. Einsweiler, J. E. Elias, R. Ely, E. Engels, Jr., D. Errede, S. Errede, Q. Fan, I. Fiori, B. Flaugher, G. W. Foster, M. Franklin, M. Frautschi, J. Freeman, J. Friedman, T. A. Fuess, Y. Fukui, S. Funaki, G. Gagliardi, S. Galeotti, M. Gallinaro, M. Garcia-Sciveres, A. F. Garfinkel, C. Gay, S. Geer, D. W. Gerdes, P. Giannetti, N. Giokaris, P. Giromini, L. Gladney, D. Glenzinski, M. Gold, J. Gonzalez, A. Gordon, A. T. Goshaw, K. Goulianos, H. Grassmann, L. Groer, C. Grosso-Pilcher, G. Guillian, R. S. Guo, C. Haber, E. Hafen, S. R. Hahn, R. Hamilton, R. Handler, R. M. Hans, K. Hara, A. D. Hardman, B. Harral, R. M. Harris, S. A. Hauger, J. Hauser, C. Hawk, E. Hayashi, J. Heinrich, K. D. Hoffman, M. Hohlmann, C. Holck, R. Hollebeek, L. Holloway, A. Hölscher, S. Hong, G. Houk, P. Hu, B. T. Huffman, R. Hughes, J. Huston, J. Huth, J. Hylen, H. Ikeda, M. Incagli, J. Incandela, G. Introzzi, J. Iwai, Y. Iwata, H. Jensen, U. Joshi, R. W. Kadel, E. Kajfasz, T. Kamon, T. Kaneko, K. Karr, H. Kasha, Y. Kato, T. A. Keaffaber, L. Keeble, K. Kelley, R. D. Kennedy, R. Kephart, P. Kesten, D. Kestenbaum, R. M. Keup, H. Keutelian, F. Keyvan, B. Kharadia, B. J. Kim, D. H. Kim, H. S. Kim, S. B. Kim, S. H. Kim, Y. K. Kim, L. Kirsch, P. Koehn, K. Kondo, J. Konigsberg, S. Kopp, K. Kordas, W. Koska, E. Kovacs, W. Kowald, M. Krasberg, J. Kroll, M. Kruse, T. Kuwabara, S. E. Kuhlmann, E. Kuns, A. T. Laasanen, N. Labanca, S. Lammel, J. I. Lamoureux, T. LeCompte, S. Leone, J. D. Lewis, P. Limon, M. Lindgren, T. M. Liss, N. Lockyer, O. Long, C. Loomis, M. Loreti, J. Lu, D. Lucchesi, P. Lukens, S. Lusin, J. Lys, K. Maeshima, A. Maghakian, P. Maksimovic, M. Mangano, J. Mansour, M. Mariotti, J. P. Marriner, A. Martin, J. A. J. Matthews, R. Mattingly, P. McIntyre, P. Melese, A. Menzione, E. Meschi, S. Metzler, C. Miao, G. Michail, R. Miller, H. Minato, S. Miscetti, M. Mishina, H. Mitsushio, T. Miyamoto, S. Miyashita, Y. Morita, J. Mueller, A. Mukherjee, T. Muller, P. Murat, H. Nakada, I. Nakano, C. Nelson, D. Neuberger, C. Newman-Holmes, M. Ninomiya, L. Nodulman, S. H. Oh, K. E. Ohl, T. Ohmoto, T. Ohsugi, R. Oishi, M. Okabe, T. Okusawa, R. Oliver, J. Olsen, C. Pagliarone, R. Paoletti, V. Papadimitriou, S. P. Pappas, S. Park, A. Parri, J. Patrick, G. Pauletta, M. Paulini, A. Perazzo, L. Pescara, M. D. Peters, T. J. Phillips, G. Piacentino, M. Pillai, K. T. Pitts, R. Plunkett, L. Pondrom, J. Proudfoot, F. Ptohos, G. Punzi, K. Ragan, A. Ribon, F. Rimondi, L. Ristori, W. J. Robertson, T. Rodrigo, S. Rolli, J. Romano, L. Rosenson, R. Roser, W. K. Sakumoto, D. Saltzberg, A. Sansoni, L. Santi, H. Sato, V. Scarpine, P. Schlabach, E. E. Schmidt, M. P. Schmidt, A. Scribano, S. Segler, S. Seidel, Y. Seiya, G. Sganos, A. Sgolacchia, M. D. Shapiro, N. M. Shaw, Q. Shen, P. F. Shepard, M. Shimojima, M. Shochet, J. Siegrist, A. Sill, P. Sinervo, P. Singh, J. Skarha, K. Sliwa, F. D. Snider, T. Song, J. Spalding, P. Sphicas, F. Spinella, M. Spiropulu, L. Spiegel, L. Stanco, J. Steele, A. Stefanini, K. Strahl, J. Strait, R. Ströhmer, D. Stuart, G. Sullivan, A. Soumarokov, K. Sumorok, J. Suzuki, T. Takada, T. Takahashi, T. Takano, K. Takikawa, N. Tamura, F. Tartarelli, W. Taylor, P. K. Teng, Y. Teramoto, S. Tether, D. Theriot, T. L. Thomas, R. Thun, M. Timko, P. Tipton, A. Titov, S. Tkaczyk, D. Toback, K. Tollefson, A. Tollestrup, J. Tonnison, J. F. de Troconiz, S. Truitt, J. Tseng, N. Turini, T. Uchida, N. Uemura, F. Ukegawa, G. Unal, S. C. van den Brink, S. Vejcik III, G. Velev, R. Vidal, M. Vondracek, D. Vucinic, R. G. Wagner, R. L. Wagner, J. Wahl, C. Wang, C. H. Wang, G. Wang, J. Wang, M. J. Wang, Q. F. Wang, A. Warburton, T. Watts, R. Webb, C. Wei, C. Wendt, H. Wenzel, W. C. Wester III, A. B. Wicklund, E. Wicklund, R. Wilkinson, H. H. Williams, P. Wilson, B. L. Winer, D. Wolinski, J. Wolinski, X. Wu, J. Wyss, A. Yagil, W. Yao, K. Yasuoka, Y. Ye, G. P. Yeh, P. Yeh, M. Yin, J. Yoh, C. Yosef, T. Yoshida, D. Yovanovitch, I. Yu, J. C. Yun, A. Zanetti, F. Zetti, L. Zhang, W. Zhang, and S. Zucchelli

Subjects
Physics, Particle physics, Meson, Hadron, Decay length, General Physics and Astronomy
Abstract

The lifetimes of the ${B}^{\ensuremath{-}}$ and ${\overline{B}}^{0}$ mesons are measured using the partially reconstructed semileptonic decays $\overline{B}\ensuremath{\rightarrow}D{\ensuremath{\ell}}^{\ensuremath{-}}\overline{\ensuremath{\nu}}X$, where D is either a ${D}^{0}$ or ${D}^{*+}$ meson. The data were collected by the CDF detector at the Fermilab Tevatron collider during 1992--1993 and correspond to 19.3 ${\mathrm{pb}}^{\ensuremath{-}1}$ of $\overline{p}p$ collisions at $\sqrt{s}\phantom{\rule{0ex}{0ex}}=\phantom{\rule{0ex}{0ex}}1.8$ TeV. We measure the decay length distributions and find the lifetimes to be $\ensuremath{\tau}({B}^{\ensuremath{-}})\phantom{\rule{0ex}{0ex}}=\phantom{\rule{0ex}{0ex}}1.56\ifmmode\pm\else\textpm\fi{}0.13\ifmmode\pm\else\textpm\fi{}0.06$ ps and $\ensuremath{\tau}({\overline{B}}^{0})\phantom{\rule{0ex}{0ex}}=\phantom{\rule{0ex}{0ex}}1.54\ifmmode\pm\else\textpm\fi{}0.08\ifmmode\pm\else\textpm\fi{}0.06$ ps, and the ratio of lifetimes to be $\ensuremath{\tau}({B}^{\ensuremath{-}})/\ensuremath{\tau}({\overline{B}}^{0})\phantom{\rule{0ex}{0ex}}=\phantom{\rule{0ex}{0ex}}1.01\ifmmode\pm\else\textpm\fi{}0.11\ifmmode\pm\else\textpm\fi{}0.02$, where the first uncertainties are statistical and the second are systematic.

Published
1996

14. Measurement of theBMeson Differential Cross Sectiondσ/dpTinpp¯Collisions at√s=1.8TeV

Author

P. F. Shepard, S. H. Oh, A. Schindler, T. L. Watts, F. Bird, L. Demortier, V. Bolognesi, Y. Cen, S. Segler, Jay Hauser, G. Michail, L. Groer, S. Tkaczyk, David Stuart, Alan Garfinkel, P. McIntyre, H. Y. Chao, R. Wilkinson, F. Keyvan, P. Melese, Q. Fan, Alan Sill, Jay Dittmann, Y. Teramoto, Michele Gallinaro, J. Cammerata, A. Tollestrup, B. T. Huffman, J. Konigsberg, R. K. Plunkett, Sacha E Kopp, D. Amidei, T. Devlin, Jose M. Benlloch, R. Ely, J. D. Lewis, J. Tonnison, S. C. van den Brink, A. Spies, P. Limon, T. A. Fuess, Mosè Mariotti, Avraham Yagil, A. T. Goshaw, H. Mitsushio, F. Azfar, E. Kajfasz, S. Miyashita, S. Errede, T. Baumann, John Huth, J. W. Chapman, J. Spalding, O. Schneider, P. Singh, D. Kestenbaum, M. Mishina, N. Wainer, E. Kovacs, A. Hölscher, M. Dell'Orso, K. E. Ohl, A. Gordon, Jakita O. Thomas, T. Muller, S. Behrends, S. Miscetti, Doyeong Kim, S. Leone, Stefano Belforte, A. Sgolacchia, R. P. Thun, C. Wei, Q. F. Wang, J. Steele, H. Jensen, W. C. Wester, J. N. Bellinger, Daniel P Cronin-Hennessy, Jun Lu, Mark Kruse, A. B. Wicklund, R. Oishi, C. H. Wang, Paul Tipton, M. Lindgren, W. K. Sakumoto, M. Cordelli, G. Busetto, E. E. Schmidt, R. G. Wagner, T. Rodrigo, L. F. Nakae, K. Ragan, S. Geer, H. S. Budd, S. Delchamps, G. P. Yeh, C. Grosso-Pilcher, M. Roach-Bellino, Daniela Bortoletto, P. Lukens, Tony Liss, Kevin Einsweiler, T. Westhusing, Marina Cobal, Kevin Burkett, L. Holloway, J. D. Cunningham, Leonard Spiegel, Andrea Sansoni, S. Donati, G. Bellettini, E. H. Low, L. Ristori, D. Y. Wu, G. Houk, M. W. Bailey, R. J. Miller, A. Grewal, Le Zhang, R. E. Hughes, Jochen Jens Heinrich, J. Patrick, K. Yasuoka, G. Sullivan, V. Papadimitriou, M. Shimojima, P. Sphicas, F. Tartarelli, Virgil E Barnes, G. Punzi, B. L. Winer, E. Engels, B. Farhat, C. Anway-Wiese, W. Koska, S. Mikamo, J. P. Marriner, Andreas Warburton, Nicola Bacchetta, J. Romano, J. Gonzalez, F. Bedeschi, B. Harral, M. Timko, A. Caner, Andrew Beretvas, A. Mukherjee, Hyun-Chul Kim, G. F. Sciacca, P. Koehn, W. Badgett, S. Lammel, A. Menzione, H. Wenzel, F. Ukegawa, M. Miller, Patrizia Azzi, Gordon Watts, J. Skarha, T. Yoshida, T. LeCompte, T. Mimashi, M. Dickson, L. Pescara, T. J. Phillips, C. Pagliarone, S. Galeotti, K. Biery, Fumio Abe, L. Song, S. Zhang, A. Barbaro-Galtieri, L. Gladney, J. Tseng, Petar Maksimovic, T. Boulos, K. Takikawa, D. Vucinic, Y. Seiya, G. Pauletta, M. Contreras, J. Kroll, S. Tether, James Strait, S. Ogawa, Jing Wang, K. Tollefson, H. H. Williams, D. Lucchesi, D. Glenzinski, T. Kaneko, L. Rosenson, W. Kowald, Robert M Harris, A. Stefanini, Andrea Castro, D. A. Kardelis, N. M. Shaw, B. Denby, P. Yeh, Dario Bisello, A. Bhatti, Lawrence Nodulman, S. B. Kim, N. Produit, K. Kordas, Wendy Taylor, J. A.J. Matthews, R. C. Walker, R. L. Swartz, Marjorie Shapiro, G. Gagliardi, P. Hu, J. Yoh, G. Unal, Chris Wendt, M. J. Shochet, M. Krasberg, Allan G Clark, M. Atac, I. Fiori, H. Keutelian, M. Mangano, G. Piacentino, E. Buckley-Geer, Riccardo Paoletti, D. Saltzberg, L. E. Kirsch, J. Wolinski, T. Chikamatsu, Steve Kuhlmann, R. D. Kennedy, B. A. Barnett, L. Keeble, Giorgio Apollinari, A. Zanetti, James Proudfoot, T. Song, S. R. Hahn, P. Sinervo, G. Bauer, Teruki Kamon, P. Musgrave, C. Campagnari, F. D. Snider, P. K. Teng, A. Scribano, A. Byon-Wagner, H. Iso, W. Carithers, J. Antos, M. Incagli, D. Theriot, Craig Blocker, F. Zetti, C. Hawk, Kaori Maeshima, M. Loreti, Y. Ye, Konstanty Sumorok, P. Hurst, Y. Morita, S. Zucchelli, R. E. Blair, F. Rimondi, R. Kephart, D. W. Gerdes, J. Siegrist, T. Daniels, S. Moulding, R. J. Hollebeek, J. Mansour, R. Mattingly, M. P. Schmidt, N. Uemura, C. B. Luchini, Nicola Turini, A. T. Laasanen, P. Wilson, John Conway, S. Eno, J. Bao, I. Nakano, M. Frautschi, Chunjie Wang, G. Sganos, D. D. Yovanovitch, J. Wyss, J. I. Lamoureux, M. Binkley, Duncan Carlsmith, Q. Shen, J. Hylen, G. Chiarelli, C. Bromberg, M. G. Albrow, G. W. Foster, M. M. Deninno, O. Long, K. Strahl, K. L. Byrum, M. J. Wang, P. Giromini, R. M. Hans, E. Kuns, A. Bodek, S. Bertolucci, Weiya Zhang, H. Kasha, C. Yosef, J. P. Berge, D. Benton, N. S. Lockyer, C. Boswell, C. N. Chiou, F. DeJongh, L. Christofek, R. B. Drucker, S. Cihangir, C. Couyoumtzelis, Manfred Paulini, W-M. Yao, M. Yin, E. Meschi, Sung Keun Park, P. Auchincloss, W. Bokhari, J. C. Yun, Yongsun Kim, Nikos Giokaris, Hong Sj, Umesh Joshi, F. Cervelli, J. Cooper, R. M. Keup, P. Schlabach, A. Maghakian, C. Nelson, B. Flaugher, J. Incandela, Douglas Benjamin, S. H. Kim, P. Kesten, A. Titov, Kiminori Kondo, F. Ptohos, W. J. Robertson, R. W. Kadel, M. Campbell, M. D. Peters, D. A. Smith, P. Giannetti, V. Scarpine, R. Handler, S. Dell'Agnello, X. Wu, K. Sliwa, D. Crane, James Bensinger, P. F. Derwent, Kazuhiko Hara, P. Maas, H. Areti, Yasuo Fukui, Nicola Labanca, L. Pondrom, E. Wicklund, T. Okusawa, S. R. Amendolia, J. Huston, I. Yu, J. E. Elias, M. Franklin, H. Grassmann, S. Funaki, J. C. Freeman, G. Wang, J. Lys, J.I. Friedman, D. Neuberger, D. Errede, Y. Kato, Catherine Newman-Holmes, T. L. Thomas, P. Bartalini, M. T. Cheng, S. A. Hauger, J. F. de Troconiz, R. C. Webb, A. Martin, R. L. Wagner, K. Goulianos, R. Hamilton, M. Pillai, M. Vondracek, C. Loomis, P. de Barbaro, Sally Seidel, A. Fry, C. P. Jessop, M. Gold, A. Dunn, S. Vejcik, T. Takahashi, James Mueller, Luca Stanco, G. Brandenburg, C. Haber, M. Turcotte, and R. Vidal

Subjects
Physics, Particle physics, Meson, High Energy Physics::Phenomenology, Hadron, General Physics and Astronomy, Order (ring theory), Elementary particle, Quarkonium, Particle decay, Quantum mechanics, High Energy Physics::Experiment, B meson, Collider Detector at Fermilab
Abstract

This paper presents the first direct measurement of the $B$ meson differential cross section $d\ensuremath{\sigma}{/dp}_{T}$ in $p\overline{p}$ collisions at $\sqrt{s}\phantom{\rule{0ex}{0ex}}=\phantom{\rule{0ex}{0ex}}1.8$ TeV using a sample of $19.3\ifmmode\pm\else\textpm\fi{}0.7$ p${\mathrm{b}}^{--1}$ accumulated by the Collider Detector at Fermilab. The cross section is measured in the central rapidity region $|y|l1$ for ${p}_{T}\left(B\right)g6.0$ GeV $/c$ by fully reconstructing the $B$ meson decays ${B}^{+}\ensuremath{\rightarrow}J/\ensuremath{\psi}{K}^{+}$ and ${B}^{0}\ensuremath{\rightarrow}J/\ensuremath{\psi}{K}^{*0}\left(892\right)$, where $J/\ensuremath{\psi}\ensuremath{\rightarrow}{\ensuremath{\mu}}^{+}{\ensuremath{\mu}}^{\ensuremath{-}}$ and ${K}^{*0}\ensuremath{\rightarrow}{K}^{+}{\ensuremath{\pi}}^{\ensuremath{-}}$. A comparison is made to the theoretical QCD prediction calculated at next-to-leading order.

Published
1995

15. Observation of Rapidity Gaps inp¯pCollisions at 1.8 TeV

Author

R. J. Hollebeek, Y. Cen, W. Carithers, S. Zhang, T. L. Watts, A. Barbaro-Galtieri, L. Gladney, C. Anway-Wiese, A. Tollestrup, M. Binkley, M. G. Albrow, T. Rodrigo, N. Bacchetta, S. A. Hauger, T. Devlin, Jose M. Benlloch, J. A.J. Matthews, G. Gagliardi, B. Denby, Umesh Joshi, J. Siegrist, Hong Sj, P. Bartalini, R. C. Webb, M. Gold, Konstantin Goulianos, D. Amidei, A. T. Goshaw, J. Cooper, R. M. Keup, S. Tkaczyk, T. Rohaly, T. Ino, Robert M Harris, G. Pauletta, S. Bertolucci, M. Contreras, A. Hölscher, S. H. Kim, M. Takano, M. Mishina, E. Kearns, James Proudfoot, Catherine Newman-Holmes, J. Mueller, M. Incagli, Fumihiko Ukegawa, P. Lukens, D. Crane, C. Campagnari, Andrea Castro, Gordon Watts, Andrea Sansoni, Weiya Zhang, J. P. Berge, C. Boswell, F. Cervelli, Wen Li, P. Schlabach, G. P. Yeh, G. Sullivan, C. Pagliarone, M. Roach, D. Lucchesi, S. Errede, S. Behrends, A. Spies, A. B. Wicklund, P. Hu, M. Loreti, S. Donati, S. Vejcik, Shlomit Tarem, M. Yokoyama, N. M. Shaw, C. Nelson, R. B. Drucker, Stefano Belforte, Tony Liss, P. Sphicas, F. Tartarelli, V. Scarpine, Virgil E Barnes, X. Wu, K. Sliwa, A. Roodman, J. Konigsberg, W. K. Sakumoto, A. Gauthier, James Bensinger, K. Biery, J. Yoh, P. F. Derwent, R. St. Denis, R. Kephart, L. Pondrom, E. Wicklund, E. E. Schmidt, T. Hessing, S. Leone, K. Yasuoka, Chris Wendt, A. Bamberger, S. Geer, T. Mimashi, M. Dickson, P. Kesten, Kazuhiko Hara, L. Ristori, B. Farhat, J. E. Elias, Avraham Yagil, H. S. Budd, T. Muller, D. Y. Wu, Fumio Abe, Doyeong Kim, P. Maas, P. Auchincloss, C. Grosso-Pilcher, M. Franklin, K. Takikawa, R. Mattingly, D. N. Brown, V. Papadimitriou, T. J. Phillips, Y. Morita, Lawrence Nodulman, K. Chadwick, P. Limon, S. Cihangir, F. Ptohos, P. Hurst, George Redlinger, J. C. Freeman, N. Wainer, H. Jensen, R. Vidal, T. Westhusing, Nicola Turini, A. T. Laasanen, S. Miyashita, W. C. Wester, W. J. Robertson, J. Gonzalez, F. Bedeschi, B. Harral, A. Caner, Jay Hauser, Sally Seidel, M. Dell'Orso, G. W. Brandenburg, L. Pescara, L. A. Markosky, H. H. Williams, Andreas Warburton, M. Mariotti, R. W. Kadel, A. Mukherjee, Andrew Beretvas, S. Lammel, Yasuo Fukui, A. Menzione, Y. Tsay, S. Ogawa, A. Stefanini, C. Haber, D. Benjamin, R. C. Walker, J. Wyss, I. Nakano, L. F. Nakae, Henry J. Frisch, A. Etchegoyen, R. P. Johnson, C. Day, A. Sill, D. Quarrie, M. Atac, M. J. Shochet, G. F. Sciacca, S. Miscetti, S. Eno, B. A. Barnett, L. Keeble, Giorgio Apollinari, C. P. Jessop, Teruki Kamon, R. Carey, M. Campbell, D. A. Smith, W. Badgett, J. C. Yun, A. Zanetti, S. R. Hahn, S. Kanda, P. Giannetti, M. W. Bailey, H. Wenzel, A. W. Booth, Craig Blocker, Kaori Maeshima, H. Grassmann, J. Rhoades, D. Neuberger, F. Zetti, C. Hawk, J. D. Lewis, R. Handler, R. Ely, Yongsun Kim, Marina Cobal, Roy F Schwitters, I. Karliner, Nikos Giokaris, Sebastian N. White, M. Spahn, J. S T Ng, A. Dunn, J. Huth, R. L. Wagner, L. E. Kirsch, J. D. Cunningham, Alan Garfinkel, S. Dell'Agnello, S. Moulding, S. Zucchelli, G. Bellettini, D. Theriot, E. Kuns, P. McIntyre, M. H. Schub, R. D. Sard, C. B. Luchini, M. Frautschi, Paul Tipton, Giorgio Chiarelli, B. Hubbard, Kostantinos Kordas, G. Houk, H. Keutelian, F. Rimondi, Steve Kuhlmann, B. Flaugher, G. M. Grieco, Duncan Carlsmith, E. H. Low, R. E. Hughes, M. Lindgren, Konstanty Sumorok, D. Connor, J. N. Bellinger, L. Song, T. Fuess, J. P. Marriner, P. de Barbaro, L. Demortier, V. Bolognesi, R. Markeloff, F. DeJongh, A. G. Piacentino, Kiminori Kondo, K. Ragan, Dario Bisello, J. I. Lamoureux, N. S. Lockyer, L. Holloway, M. Mangano, J. Walsh, O. Schneider, J. T. Carroll, J. W. Chapman, A. Bodek, J. Patrick, T. Song, W-M. Yao, E. Pare, G. Punzi, B. L. Winer, R. L. Swartz, Marjorie Shapiro, Y. Ye, E. Meschi, Sung Keun Park, M. Timko, J. Hylen, A. Para, L. Stanco, E. Buckley-Geer, Riccardo Paoletti, A. G. Clark, K. L. Byrum, P. Sinervo, R. Cashmore, G. W. Foster, J. Skarha, T. Baumann, S. Tether, M. Cordelli, G. Busetto, R. G. Wagner, G. Sganos, S. Segler, G. J. Feldman, J. Tseng, W. Chinowsky, R. E. Blair, B. T. Huffman, D. G. Underwood, Aurore Savoy-Navarro, R. K. Plunkett, S. Bhadra, M. Ninomiya, E. Kovacs, William Trischuk, D. A. Kardelis, S. B. Kim, M. Krasberg, R. Grindley, J. Wolinski, T. Meyer, G. Bauer, F. D. Snider, D. W. Gerdes, M. Sheaff, A. Baden, S. Mikamo, M. Miller, Patrizia Azzi, Y. Seiya, J. Tonnison, Kevin Einsweiler, A. Scribano, A. Byon-Wagner, and H. Iso

Subjects
Physics, Quantum chromodynamics, Particle physics, Hadron, General Physics and Astronomy, Elementary particle, Multiplicity (mathematics), Gluon, Nuclear physics, High Energy Physics::Experiment, Rapidity, Nuclear Experiment, Energy (signal processing), Boson
Abstract

In $p\overline{p}$ collisions at $\sqrt{s}=1.8$ TeV we find jet events with a rapidity gap topology. The number of hadrons in the rapidity interval $\ensuremath{\Delta}{\ensuremath{\eta}}_{D}$ between leading-jet cones was sampled by charged tracks with ${P}_{T}g400$ MeV/c. We find excess trackless events beyond that expected in a smooth multiplicity distribution. In a control region outside $\ensuremath{\Delta}{\ensuremath{\eta}}_{D}$ we see no excess. For $\ensuremath{\Delta}{\ensuremath{\eta}}_{D}g0.8$, the fraction of excess trackless events, consistent with estimates based on exchange of color-singlet digluons, is $R(\mathrm{gap})=\frac{{\ensuremath{\sigma}}_{\mathrm{jet}}(\mathrm{gap})}{{\ensuremath{\sigma}}_{\mathrm{jet}}}=0.0085\ifmmode\pm\else\textpm\fi{}{0.0012(\mathrm{stat})}_{\ensuremath{-}0.0012}^{+0.0024}(\mathrm{syst})$.

Published
1995

16. Measurement of theBmeson andbquark cross sections at √s=1.8 TeV using the exclusive decayB0→J/ψK*(892)0

Author

J. T. Carroll, K. Ragan, R. Cashmore, G. Brandenburg, T. Kamon, M. Binkley, M. Cordelli, C. Wendt, M. Sheaff, G. J. Feldman, L. Pondrom, B. T. Huffman, J. A. J. Matthews, A. Bamberger, S. Miscetti, D. A. Kardelis, P. McIntyre, S. Hong, M. Mangano, A. Castro, M. W. Bailey, R. D. Sard, Jae-Chul Yun, N. Giokaris, J. N. Bellinger, J. S. T. Ng, R. C. Walker, M. Roach, W. Zhang, D. Underwood, D. Lucchesi, D. Bisello, P. Giannetti, J. Mueller, E. Pare, P. Schlabach, C. Haber, J. Freeman, R. Kephart, A. Mukherjee, A. Bodek, Y. Fukui, H. Keutelian, D. Benjamin, D. Neuberger, J. Proudfoot, M. Mariotti, A. Etchegoyen, Gong Ping Yeh, G. Pauletta, I. Nakano, G. Sciacca, J. D. Lewis, M. Atac, L. Holloway, R. M. Keup, V. Scarpine, G. M. Grieco, J. J. Walsh, S. Moulding, S. Behrends, M. Dell’Orso, E. Meschi, J. E. Elias, B. Hubbard, P. Limon, S. Dell’Agnello, S. Leone, A. Barbaro-Galtieri, J. Wolinski, R. Vidal, W. K. Sakumoto, K. Yasuoka, D. Quarrie, U. Joshi, M. Franklin, T. Westhusing, F. D. Snider, E. Kearns, M. Albrow, P. Sphicas, A. Scribano, Kostantinos Kordas, M. Ninomiya, A. Para, J. Bensinger, L. Stanco, A. Stefanini, D. Amidei, H. H. Williams, S. Errede, K. Chadwick, G. W. Foster, W. Li, J. Gonzalez, L. A. Markosky, G. Redlinger, H. Grassmann, R. Mattingly, T. Mimashi, F. Rimondi, J. P. Berge, John Wehrley Chapman, J. Huth, G. Piacentino, Marina Cobal, H. Frisch, B. Flaugher, F. Cervelli, P. Sinervo, S. Vejcik, C. Newman-Holmes, C. Nelson, R. Plunkett, T. Ino, M. Timko, S. R. Hahn, M. Loreti, V. E. Barnes, F. DeJongh, S. Zucchelli, Y. Tsay, A. Zanetti, J. D. Cunningham, Y. Seiya, B. Harral, P. Hu, W. Chinowsky, C. Hawk, M. Contreras, J. Skarha, P. de Barbaro, R. Blair, J. Tseng, S. N. White, O. Schneider, P. Auchincloss, T. Hessing, F. Ptohos, S. B. Kim, K. Goulianos, K. Sumorok, A. Savoy-Navarro, R. P. Johnson, T. Rohaly, B. A. Barnett, E. Wicklund, K. Kondo, K. Biery, D. Y. Wu, F. Tartarelli, K. Takikawa, S. Tarem, S. Geer, R. St. Denis, R. B. Drucker, G. Bellettini, L. Keeble, F. Zetti, J. Tonnison, S. Cihangir, F. Ukegawa, Duncan Carlsmith, Dominic Smith, S. Bhadra, M. Frautschi, D. W. Gerdes, G. Watts, F. Bedeschi, C. Campagnari, R. Handler, David Nathan Brown, P. Kesten, P. F. Derwent, P. Giromini, J. Rhoades, M. Dickson, A. R. Baden, L. Kirsch, T. Fuess, L. Ristori, J. Patrick, S. Park, P. Maas, M. Shapiro, T. Muller, W. Carithers, T. Baumann, J. Wyss, R. L. Swartz, P. Lukens, E. Buckley-Geer, K. Einsweiler, S. Bertolucci, V. Bolognesi, S. Eno, F. Abe, D. Theriot, R. L. Wagner, H. S. Budd, R. C. Webb, S. Tether, G. Apollinari, S. Mikamo, A. Roodman, S. Miyashita, D. Crane, W. J. Robertson, W. Badgett, L. Nodulman, S. E. Kuhlmann, J. Hylen, R. M. Harris, N. Turini, J. Siegrist, R. W. Kadel, C. Grosso-Pilcher, W. C. Wester, R. Ely, L. Demortier, T. Song, M. Spahn, D. Connor, M. Lindgren, A. Byon-Wagner, A. Caner, P. Azzi, S. Segler, B. Denby, M. Shochet, M. Krasberg, N. Wainer, A. Gauthier, A. Spies, Jose M. Benlloch, M. Gold, C. B. Luchini, J. Konigsberg, A. Beretvas, M. Takano, S. Ogawa, C. Blocker, L. Pescara, M. Mishina, A. T. Laasanen, S. Tkaczyk, R. Schwitters, E. H. Low, D. DiBitonto, A. Sill, T. Rodrigo, K. L. Byrum, C. Boswell, K. Sliwa, G. Bauer, Shuang Zhang, Y. Ye, G. Busetto, C. Anway-Wiese, P. Tipton, N. M. Shaw, K. Maeshima, E. Kovacs, S. Belforte, R. Carey, J. I. Lamoureux, Y. Cen, R. Hughes, T. Meyer, Y. Morita, R. Paoletti, R. G. Wagner, T. J. Phillips, B. Farhat, B. L. Winer, G. Chiarelli, A. W. Booth, N. Lockyer, T. M. Liss, A. Sansoni, A. Menzione, E. E. Schmidt, G. Punzi, W. Trischuk, S. H. Kim, L. F. Nakae, J. Hauser, Young-Ki Kim, S. Seidel, Xin Wu, M. Incagli, S. Lammel, M. H. Schub, S. A. Hauger, A. F. Garfinkel, A. Yagil, R. Markeloff, T. Devlin, N. Bacchetta, K. Hara, C. Day, A. Tollestrup, A. Dunn, M. Yokoyama, L. Song, C. P. Jessop, A. B. Wicklund, H. Jensen, P. Hurst, G. Houk, S. Kanda, Dohun Kim, R. Grindley, V. Papadimitriou, T. Watts, A. G. Clark, M. Campbell, J. Cooper, L. Gladney, E. Kuns, H. Iso, G. Sullivan, I. Karliner, R. Hollebeek, H. Wenzel, J. P. Marriner, J. Yoh, and M. A. Miller

Subjects
Physics, Particle decay, Particle physics, Meson, TheoryofComputation_ANALYSISOFALGORITHMSANDPROBLEMCOMPLEXITY, Hadron, Transverse momentum, B meson, Quarkonium, Bottom quark, Collider Detector at Fermilab
Abstract

This paper reports the measurement of the [ital B] meson and [ital b] quark cross sections through the decay chain [ital B][sup 0][r arrow][ital J]/[psi] K[sup *](892)[sup 0], [ital J]/[psi][r arrow][mu][sup +][mu][sup [minus]], [ital K][sup *](892)[sup 0][r arrow][ital K][sup +][pi][sup [minus]], using 4.3 pb[sup [minus]1] of data collected at the Collider Detector at Fermilab in [ital [bar p]p] collisions at [ital qrts]=1.8 TeV. We obtain [sigma][sub [ital B]]=1.5[plus minus]0.7(stat)[plus minus]0.6(syst) [mu]b for [ital B][sup 0] mesons with transverse momentum [ital P][sub [ital T]][gt]9.0 GeV/[ital c] and rapidity [vert bar][ital y][vert bar][lt]1.0. Using this result, we find [sigma][sub [ital b]]=3.7[plus minus]1.6(stat)[plus minus]1.5(syst) [mu]b for [ital b] quarks with [ital P][sub [ital T]][gt]11.5 GeV/[ital c] and rapidity [vert bar][ital y][vert bar][lt]1.0. The [ital b] quark cross section is compared to next-to-leading order QCD calculations and previous measurements.

Published
1994

17. The CLEO II detector

Author

H. Worden, M. Lambrecht, B. Nemati, K. K. Gan, C. O'Grady, A. J. Weinstein, J. Urheim, Tomasz Skwarnicki, H. N. Nelson, Ian Shipsey, J. Mevissen, F. Morrow, D. Besson, R. DeSalvo, D. Perticone, N. Kwak, R. Fulton, J. Masui, J. Kandaswamy, E. Nordberg, Jeffrey Richman, T. E. Browder, G. S. Ludwig, Daniela Bortoletto, T. Letson, Juliet Ritchie Patterson, G. C. Moneti, Yoram Rozen, F. Würthwein, M. Pisharody, P. Lubrano, Karl Berkelman, P. Haas, M. Modesitt, P. Wilson, James Mueller, Barry C. Barish, G. Kalbfleisch, E. I. Shibata, Brian Heltsley, X. Fu, C. Bebek, Philip Baringer, D. M. Coffman, W. C. Li, J. P. Alexander, R. L. McIlwain, D. Peterson, W. Y. Chen, A. P. Freyberger, Vivek Jain, T. Jensen, P. Skubic, W. M. Yao, S. Schrenk, V. Sharma, D. L. Kreinick, R. Holmes, R. Ehrlich, T. Haupt, A. Jawahery, D. Coppage, Hubert Kroha, F. M. Pipkin, J. Wolinski, J. G. Smith, M. Daoudi, S. Ro, K. Sparks, Zuhe Bian, Ryszard Stroynowski, D. Xiao, J. Dominick, M. Sung, D. N. Brown, Alice Bean, D. Chen, C. R. Sun, W. T. Ford, R. D. Kass, H. Yamamoto, Ha Lam, M. Battle, P. Rankin, K. Honschoid, M. Worris, M. Sapper, J. S. Miller, David Miller, R. J. Morrison, Mats A Selen, M. Procario, R. S. Galik, P. Rubin, M. Thulasidas, S. E. Csorna, H. Tajima, A. J. Sadoff, J. Whitmore, R. T. Giles, Ian Brock, N. Katayama, Chunjie Wang, R. Kowalewski, Marina Artuso, Xinchou Lou, N. Horwitz, M. Chadha, M. S. Alam, D. S. Akerib, G. Eigen, P. Avery, Ron Poling, K. Kinoshita, R. Ammar, Daniel Schmidt, E. Blucher, D. L. Hartill, G. Zhu, Themistocles Bowcock, Persis S. Drell, R. Namjoshi, C. R. Ng, N. B. Mistry, B. Geiser, Sheldon Stone, P. N. Wang, D. F. Cowen, R. Davis, Elliott Cheu, P. C. Kim, S. Henderson, G. Crawford, C. D. Jones, Daniel Johnson, M. Lohner, F. Butler, R. Malchow, D. G. Cassel, John Yelton, M. Goldberg, M. L. Kelly, Jorge Luis Rodriguez, S. W. Gray, M. Saulnier, Richard Wilson, Harris Kagan, M. M. Zoeller, Murdock Gilchriese, M. S. Witherell, B. Gittelman, P. L. Wang, E. H. Thorndike, J. Snow, I. J. Kim, S. Nandi, D. Riley, S. F. Schaffner, Yuichi Kubota, Maurice Garcia-Sciveres, J. K. Nelson, and K. Lingel

Subjects
Physics, Nuclear and High Energy Physics, Particle physics, Annihilation, Physics::Instrumentation and Detectors, Detector, Hadron, Tracking (particle physics), Particle identification, Charged particle, Nuclear physics, CLEO, High Energy Physics::Experiment, Cornell Electron Storage Ring, Instrumentation
Abstract

The new detector for data recording by the CLEO collaboration at the Cornell Electron Storage Ring is described. This detector has been designed to optimize studying e+ e− annihilation into hadronic matter at a total energy of 10 GeV. It consists of high precesion charged particle tracking chambers and an electromagnetic calorimeter together with systems for particle identification. The design of the detector and its performance over the first year and a half of operation are presented.

Published
1992

18. Two-bodyDs+decays toηπ+,η′π+,ηρ+,η′ρ+, andφρ+

Author

M. Daoudi, W. T. Ford, D. R. Johnson, K. Lingel, M. Lohner, P. Rankin, J. G. Smith, J. Alexander, C. Bebek, K. Berkelman, D. Besson, T. E. Browder, D. G. Cassel, E. Cheu, D. M. Coffman, P. S. Drell, R. Ehrlich, R. S. Galik, M. Garcia-Sciveres, B. Geiser, B. Gittelman, S. W. Gray, D. L. Hartill, B. K. Heltsley, K. Honscheid, J. Kandaswamy, N. Katayama, P. C. Kim, D. L. Kreinick, J. D. Lewis, G. S. Ludwig, J. Masui, J. Mevissen, N. B. Mistry, S. Nandi, C. R. Ng, E. Nordberg, C. O'Grady, J. R. Patterson, D. Peterson, M. Pisharody, D. Riley, M. Sapper, M. Selen, H. Worden, M. Worris, P. Avery, A. Freyberger, J. Rodriguez, J. Yelton, S. Henderson, K. Kinoshita, F. Pipkin, M. Saulnier, R. Wilson, J. Wolinski, D. Xiao, H. Yamamoto, A. J. Sadoff, R. Ammar, P. Baringer, D. Coppage, R. Davis, M. Kelly, N. Kwak, H. Lam, S. Ro, Y. Kubota, J. K. Nelson, D. Perticone, R. Poling, S. Schrenk, M. S. Alam, I. J. Kim, B. Nemati, V. Romero, C. R. Sun, P. -N. Wang, M. M. Zoeller, G. Crawford, R. Fulton, K. K. Gan, T. Jensen, H. Kagan, R. Kass, R. Malchow, F. Morrow, J. Whitmore, P. Wilson, F. Butler, X. Fu, G. Kalbfleisch, M. Lambrecht, P. Skubic, J. Snow, P. -L. Wang, D. Bortoletto, D. N. Brown, J. Dominick, R. L. McIlwain, D. H. Miller, M. Modesitt, E. I. Shibata, S. F. Schaffner, I. P. J. Shipsey, M. Battle, J. Ernst, H. Kroha, S. Roberts, K. Sparks, E. H. Thorndike, C. -H. Wang, M. Artuso, M. Goldberg, T. Haupt, N. Horwitz, R. Kennett, M. D. Mestayer, G. C. Moneti, Y. Rozen, P. Rubin, T. Skwarnicki, S. Stone, M. Thusalidas, W. -M. Yao, G. Zhu, A. V. Barnes, J. Bartelt, S. E. Csorna, V. Jain, T. Letson, D. S. Akerib, B. Barish, D. F. Cowen, G. Eigen, R. Stroynowski, J. Urheim, A. J. Weinstein, R. J. Morrison, H. Tajima, D. Schmidt, and M. Procario

Subjects
Physics, Particle decay, Crystallography, Pion, Meson, Branching fraction, TheoryofComputation_ANALYSISOFALGORITHMSANDPROBLEMCOMPLEXITY, Electron–positron annihilation, Hadron, Elementary particle, Calculation methods
Abstract

We have made measurements of several {ital D}{sub {ital s}} branching ratios, relative to the {phi}{pi}{sup +} mode. We have observed two previously unseen two-body hadronic decays of the {ital D}{sub {ital s}}{sup +}, namely {eta}{rho}{sup +} and {eta}{prime}{rho}{sup +}, and measured relative branching ratios of 2.86{plus minus}0.38{sub {minus}0.38}{sup +0.36} and 3.44{plus minus}0.62{sub {minus}0.46}{sup +0.44}, respectively. We have determined the relative branching ratio for the decay into {phi}{rho}{sup +} to be 1.86{plus minus}0.26{sub {minus}0.40}{sup +0.29}. In addition, we have measured relative branching ratios for the {eta}{pi}{sup +} and {eta}{prime}{pi}{sup +} states, for which there had previously been conflicting measurements; our results are 0.54{plus minus}0.09{plus minus}0.06 and 1.20{plus minus}0.15{plus minus}0.11, respectively. Combining these new measurements with previous results and using (3.7{plus minus}1.2)% for the value of {ital scrB}({ital D}{sub {ital s}}{r arrow}{phi}{pi}{sup +}), we can account for {approx}(79{plus minus}26)% of all {ital D}{sub {ital s}}{sup +} decays. In addition we have also measured relative branching ratios or set upper limits on {ital D}{sup +} decays to all of the above-mentioned final states.

Published
1992

19. Ds+decays to ηπ+and η’π+

Author

J. Alexander, C. Bebek, K. Berkelman, D. Besson, T. E. Browder, D. G. Cassel, E. Cheu, D. M. Coffman, P. S. Drell, R. Ehrlich, R. S. Galik, M. Garcia-Sciveres, B. Geiser, B. Gittelman, S. W. Gray, D. L. Hartill, B. K. Heltsley, K. Honscheid, J. Kandaswamy, N. Katayama, P. C. Kim, D. L. Kreinick, J. D. Lewis, G. S. Ludwig, J. Masui, J. Mevissen, N. B. Mistry, S. Nandi, C. R. Ng, E. Nordberg, C. O’Grady, J. R. Patterson, D. Peterson, M. Pisharody, D. Riley, M. Sapper, M. Selen, H. Worden, M. Worris, P. Avery, A. Freyberger, J. Rodriguez, J. Yelton, S. Henderson, K. Kinoshita, F. Pipkin, M. Saulnier, R. Wilson, J. Wolinski, D. Xiao, H. Yamamoto, A. J. Sadoff, R. Ammar, P. Baringer, D. Coppage, R. Davis, M. Kelly, N. Kwak, H. Lam, S. Ro, Y. Kubota, J. K. Nelson, D. Perticone, R. Poling, S. Schrenk, M. S. Alam, I. J. Kim, B. Nemati, V. Romero, C. R. Sun, P.-N. Wang, M. M. Zoeller, G. Crawford, R. Fulton, K. K. Gan, T. Jensen, H. Kagan, R. Kass, R. Malchow, F. Morrow, J. Whitmore, P. Wilson, F. Butler, X. Fu, G. Kalbfleisch, M. Lambrecht, P. Skubic, J. Snow, P.-L. Wang, D. Bortoletto, D. N. Brown, J. Dominick, R. L. McIlwain, D. H. Miller, M. Modesitt, E. I. Shibata, S. F. Schaffner, I. P. J. Shipsey, M. Battle, J. Ernst, H. Kroha, S. Roberts, K. Sparks, E. H. Thorndike, C.-H. Wang, M. Artuso, M. Goldberg, T. Haupt, N. Horwitz, R. Kennett, G. C. Moneti, Y. Rozen, P. Rubin, T. Skwarnicki, S. Stone, M. Thusalidas, W.-M. Yao, G. Zhu, A. V. Barnes, J. Bartelt, S. E. Csorna, V. Jain, T. Letson, M. D. Mestayer, D. S. Akerib, B. Barish, D. F. Cowen, G. Eigen, R. Stroynowski, J. Urheim, A. J. Weinstein, R. J. Morrison, H. Tajima, D. Schmidt, M. Procario, M. Daoudi, W. T. Ford, D. R. Johnson, K. Lingel, M. Lohner, P. Rankin, and J. G. Smith

Subjects
Combinatorics, Physics, Particle decay, Meson, Branching fraction, Electron–positron annihilation, Hadron, General Physics and Astronomy, Quarkonium, Gamma detection
Abstract

Using the CLEO II detector, we have accurately measured ${\mathit{D}}_{\mathit{s}}$ decay branching ratios relative to the \ensuremath{\varphi}${\mathrm{\ensuremath{\pi}}}^{+}$ mode for the \ensuremath{\eta}${\mathrm{\ensuremath{\pi}}}^{+}$ and \ensuremath{\eta}'${\mathrm{\ensuremath{\pi}}}^{+}$ states, for which there are conflicting claims; our results are 0.54\ifmmode\pm\else\textpm\fi{}0.09\ifmmode\pm\else\textpm\fi{}0.06 and 1.20\ifmmode\pm\else\textpm\fi{}0.15\ifmmode\pm\else\textpm\fi{}0.11, respectively.

Published
1992

20. Unusual decay modes ofD0andD+mesons

Author

R. Ammar, P. Baringer, D. Coppage, R. Davis, P. Haas, M. Kelly, N. Kwak, H. Lam, S. Ro, Y. Kubota, J. K. Nelson, D. Perticone, R. Poling, S. Schrenk, G. Crawford, R. Fulton, T. Jensen, D. Johnson, H. Kagan, R. Kass, R. Malchow, F. Marrow, J. Whitmore, P. Wilson, D. Bortoletto, D. N. Brown, J. Dominick, R. L. McIlwain, D. H. Miller, M. Modesitt, C. R. Ng, S. F. Schaffner, E. I. Shibata, I. P. J. Shipsey, M. Battle, H. Kroha, K. Sparks, E. H. Thorndike, C. -H. Wang, M. S. Alam, I. J. Kim, W. C. Li, B. Nemati, V. Romero, C. R. Sun, P. -N. Wang, M. M. Zoeller, M. Goldberg, T. Haupt, N. Horwitz, V. Jain, R. Kennett, M. D. Mestayer, G. C. Moneti, Y. Rozen, P. Rubin, T. Skwarnicki, S. Stone, M. Thusalidas, W. -M. Yao, G. Zhu, A. V. Barnes, J. Bartelt, S. E. Csorna, T. Letson, J. Alexander, M. Artuso, C. Bebek, K. Berkelman, D. Besson, T. E. Browder, D. G. Cassel, E. Cheu, D. M. Coffman, P. S. Drell, R. Ehrlich, R. S. Galik, M. Garcia-Sciveres, B. Geiser, B. Gittelman, S. W. Gray, D. L. Hartill, B. K. Heltsley, K. Honscheid, J. Kandaswamy, N. Katayama, P. C. Kim, D. L. Kreinick, J. D. Lewis, G. S. Ludwig, J. Masui, J. Mevissen, N. B. Mistry, S. Nandi, E. Nordberg, C. O'Grady, J. R. Patterson, D. Peterson, M. Pisharody, D. Riley, M. Sapper, M. Selen, A. Silverman, H. Worden, M. Worris, A. J. Sadoff, P. Avery, A. Freyberger, J. Rodriguez, J. Yelton, S. Henderson, K. Kinoshita, F. Pipkin, M. Procario, M. Saulnier, R. Wilson, J. Wolinski, and D. Xiao

Subjects
Physics, Particle decay, Crystallography, Condensed matter physics, Meson, TheoryofComputation_ANALYSISOFALGORITHMSANDPROBLEMCOMPLEXITY, Hadron, Cornell Electron Storage Ring
Abstract

CLEO has measured decay modes of the {ital D}{sup 0} and {ital D}{sup +} into final states consisting of {ital K}{sup {plus minus}}'s, {pi}{sup {plus minus}}'s, {ital K}{sup 0}'s and {ital {bar K}}{sup 0}'s, using data taken with the CLEO detector at the Cornell Electron Storage Ring. We report new results on the decays of {ital D}{sup 0}'s into 4{pi}{sup {plus minus}},{ital K}{sup {minus}}{ital K+}{pi}{sup {minus}}{pi}{sup +},{ital {bar K}}{sup 0}{ital K+}{ital K{minus}},{ital {bar K}}{sup 0} {ital K+}{pi}{sup {minus}},{ital K}{sup 0}{ital K{minus}}{pi}{sup +},3{ital K}{sub {ital S}}{sup 0} and {ital {bar K}}{sup 0}{phi} together with some of their resonant substructure. We also present the first observation of the decay {ital D}{sup +}{r arrow}{ital {bar K}}{sup 0}{ital {bar K}0}{ital K+} and give limits on the doubly-Cabibbo-suppressed decays of the {ital D}{sup 0} into {ital K}{sup +}{pi}{sup {minus}} and {ital K}{sup +}{pi}{sup {minus}}{pi}{sup +}{pi}{sup {minus}}.

Published
1991

21. Measurement of the inclusiveB*cross section above the Υ(4S)

Author

R. Kennett, R. Ammar, M. Garcia-Sciveres, Ha Lam, B. Gittelman, R. J. Wilson, Vipul Jain, I. J. Kim, P. L. Wang, Ryszard Stroynowski, S. W. Gray, B. C. Barish, P. Rankin, Juliet Ritchie Patterson, J. Masui, M. Modesitt, S. R. Ro, R. Fulton, V. Romero, J. G. Smith, John E. Bartelt, J. L. Rodriguez, G.R. Kalbfleisch, M. Procario, W. M. Yao, J. Wolinski, A. P. Freyberger, D. L. Hartill, E. Nordberg, Soumitra Nandi, Daniel Schmidt, G. S. Ludwig, D. H. Miller, N. B. Mistry, M. S. Alam, M. Kelly, R. L. Malchow, P. S. Drell, P. Wilson, J. Mevissen, E. H. Thorndike, J. Kandaswamy, F. M. Pipkin, D. Z. Besson, T. Haupt, K. Lingel, D. F. Cowen, D. Coppage, J. Snow, J. D. Lewis, C. R. Sun, R. D. Kass, H. Worden, Elliott Cheu, Glen D. Crawford, D. Peterson, D. Perticone, B. Geiser, H. Kagan, N. Kwak, M. Lambrecht, D. N. Brown, M. Worris, Hubert Kroha, M. D. Mestayer, C. P. O'Grady, I. P. J. Shipsey, R. S. Galik, Janice Nelson, Sheldon Stone, Yoram Rozen, Paul Avery, R. J. Morrison, D. R. Johnson, D. Riley, R. L. McIlwain, Mats A Selen, A. J. Sadoff, A. V. Barnes, K. Sparks, T. Letson, C. R. Ng, Cong Wang, X. Fu, S. E. Csorna, P. Haas, John Yelton, F. Butler, K. Kinoshita, Marina Artuso, D. G. Cassel, Philip Baringer, R. Poling, N. Katayama, R. Davis, D. S. Akerib, Daniela Bortoletto, T. Jensen, G. Eigen, Yuichi Kubota, M. M. Zoeller, M. Thusalidas, M. Pisharody, Karl Berkelman, R. Ehrlich, D. M. Coffman, N. Horwitz, K. Honscheid, P. Skubic, B. K. Heltsley, J. Urheim, D. L. Kreinick, C. Bebek, T. E. Browder, B. Nemati, J. Dominick, M. Battle, A. J.R. Weinstein, E. I. Shibata, Pu Wang, J. Whitmore, M. Sapper, S. Schrenk, G. Zhu, P. Rubin, J. Alexander, F. Morrow, D. Xiao, K. K. Gan, T. Skwarnicki, M. Goldberg, G. C. Moneti, and S.F. Schaffner

Subjects
Nuclear physics, Physics, Particle decay, Meson, Electron–positron annihilation, Hadron, General Physics and Astronomy, Resonance, Elementary particle, Cornell Electron Storage Ring, Energy (signal processing)
Abstract

Using the CLEO II detector at the Cornell Electron Storage Ring, we have determined the inclusive {ital B}{sup *} cross section above the {Upsilon}(4{ital S}) resonance in the energy range from 10.61 to 10.70 GeV. We also report a new measurement of the energy of the {ital B}{sup *}{r arrow}{ital B}{gamma} transition photon of 46.2{plus minus}0.3{plus minus}0.8 MeV.

Published
1991

22. Inclusive χ(2P) production in Υ(3S) decay

Author

R. Fulton, E. Nordberg, G. S. Ludwig, C. O'Grady, D. Z. Besson, T. Haupt, M. Worris, A. J. Weinstein, P. Rubin, D. Riley, R. Ehrlich, S. W. Gray, M. Kelly, J. Alexander, J. Mevissen, F. Morrow, D. F. Cowen, R. Ammar, D. R. Johnson, N. Katayama, D. Perticone, J. Kandaswamy, T. Jensen, D. S. Akerib, G. Eigen, M. Lambrecht, I. P. J. Shipsey, D. Xiao, K. Honscheid, M. Garcia-Sciveres, K. Lingel, D. L. Kreinick, C. Bebek, Janice Nelson, D. Peterson, M. Sapper, M. Modesitt, Yuichi Kubota, Vipul Jain, T. E. Browder, J. Urheim, N. Horwitz, H. Worden, S. R. Ro, A. P. Freyberger, George R. Kalbfleisch, J. Dominick, M. Thusalidas, D. M. Coffman, B. K. Heltsley, Ryszard Stroynowski, P. Rankin, Daniela Bortoletto, J. Snow, K. K. Gan, T. Skwarnicki, M. Goldberg, G. C. Moneti, S.F. Schaffner, Sheldon Stone, Paul Avery, Robert Wilson, K. Sparks, Marina Artuso, S. Schrenk, M. Pisharody, Karl Berkelman, B. Nemati, R. Malchow, M. Battle, J. L. Rodriguez, N. B. Mistry, J. G. Smith, E. H. Thorndike, F. M. Pipkin, D. Coppage, Yoram Rozen, G. Zhu, John E. Bartelt, P. L. Wang, Soumitra Nandi, T. Letson, Philip Baringer, R. S. Galik, M. M. Zoeller, C. R. Sun, R. D. Kass, D. H. Miller, R. Davis, M. S. Alam, S. E. Csorna, K. Kinoshita, D. N. Brown, P. Haas, N. Kwak, M. D. Mestayer, R. L. McIlwain, A. V. Barnes, B. Geiser, D. G. Cassel, Cong Wang, F. Butler, R. Poling, John Yelton, D. L. Hartill, W. M. Yao, J. D. Lewis, Daniel Schmidt, R. Kennett, E. I. Shibata, X. Fu, Elliott Cheu, Ha Lam, Glen D. Crawford, H. Kagan, C. R. Ng, B. Gittelman, B. C. Barish, J. Masui, V. Romero, R. J. Morrison, Mats A Selen, A. J. Sadoff, J. Wolinski, I. J. Kim, Juliet Ritchie Patterson, M. Procario, P. Skubic, Pu Wang, J. Whitmore, Hubert Kroha, P. S. Drell, and P. Wilson

Subjects
Physics, Meson, Physics::Instrumentation and Detectors, Branching fraction, Computer Science::Information Retrieval, Electron–positron annihilation, Hadron, General Physics and Astronomy, Elementary particle, Quarkonium, Nuclear physics, Particle decay, Radiative transfer, High Energy Physics::Experiment
Abstract

Using the CsI calorimeter of the CLEO II detector, the spin triplet {chi}{sub {ital b}}(2{ital P}) states are observed in {Upsilon}(3{ital S}) radiative decays with much higher statistics than seen in previous experiments. The observed mass splittings are not described well by theoretical models, while the relative branching ratios agree with predictions that include relativistic corrections to the radiative transition rates.

Published
1991

23. Study ofD0decays into final states with aπ0orη

Author

M. Procario, H. Kagan, A. M. Halling, E. H. Thorndike, M. Worris, J. Masui, S. F. Schaffner, Daniela Bortoletto, J. Bartelt, D. G. Cassel, Y. Zhu, T. Letson, D. H. Miller, D. Coppage, P. S. Drell, R. Fulton, Mats A Selen, R. Ammar, J. Whitmore, M. S. Alam, A. J. Sadoff, T. E. Browder, J. P. Alexander, F. Morrow, J. Wolinski, T. Haupt, P. N. Wang, D. Besson, P. Wilson, Yuichi Kubota, E. Nordberg, S. E. Csorna, N. Katayama, R. Malchow, Ha Lam, C. Bebek, J. D. Lewis, G. S. Ludwig, John Yelton, B. Geiser, A. Silverman, K. Kinoshita, V. Romero, C. O'Grady, Tomasz Skwarnicki, J. K. Nelson, R. S. Galik, W. C. Li, D. Xiao, M. L. Kelly, T. Jensen, C. R. Sun, Hubert Kroha, N. Kwak, Richard Wilson, S. W. Gray, M. Modesitt, R. D. Kass, F. M. Pipkin, L. Garren, M. Goldberg, K. Honscheid, Elliott Cheu, N. Horwitz, G. Crawford, G. C. Moneti, B. Gittelman, Maurice Garcia-Sciveres, M. M. Zoeller, N. B. Mistry, R. L. McIlwain, H. Worden, I. J. Kim, Chunjie Wang, E. I. Shibata, J. Mevissen, M. Sapper, A. V. Barnes, S. Schrenk, V. Jain, J. Kandaswamy, K. Sparks, M. Pisharody, Karl Berkelman, D. Peterson, C. R. Ng, S. Nandi, Sheldon Stone, G. Zhu, M. D. Mestayer, D. N. Brown, Paul Avery, Marina Artuso, D. R. Johnson, M. Thusalidas, I. P.J. Shipsey, R. Davis, P. Rubin, D. L. Kreinick, J. Dominick, M. Battle, D. Perticone, Yoram Rozen, W. M. Yao, P. Haas, Philip Baringer, R. Ehrlich, S. Ro, D. M. Coffman, B. K. Heltsley, D. L. Hartill, R. Poling, and D. Riley

Subjects
Physics, Crystallography, Pion, Meson, Branching fraction, TheoryofComputation_ANALYSISOFALGORITHMSANDPROBLEMCOMPLEXITY, Isospin, Hadron, Elementary particle, Cornell Electron Storage Ring, Omega
Abstract

We have made measurements of decay modes of neutral {ital D} mesons into exclusive final states containing photons using data collected with the CLEO detector at the Cornell Electron Storage Ring. We report observation of {ital D}{sup 0}{r arrow}{ital K}{sup {minus}}{pi}{sup +}{pi}{sup {minus}}{pi}{sup +}{pi}{sup 0} (charge conjugates are implicit), and present new measurements of the branching ratios for {ital D}{sup 0}{r arrow}{ital K}{sup {minus}}{pi}{sup +}{pi}{sup 0}, {ital D}{sup 0}{r arrow}{ital {bar K}}{sup 0}{pi}{sup +}{pi}{sup 0}{pi}{sup {minus}}, {ital D}{sup 0}{r arrow}{ital {bar K}}{sup 0}{pi}{sup 0}, {ital {bar K}}{sup *0}{eta}, and {ital D}{sup 0}{r arrow}{ital {bar K}}{sup 0}{omega}. Where possible, results are compared with theoretical predictions for two-body {ital D}{sup 0} decays.

Published
1991

24. Study ofπ+π−transitions from theϒ(3S)and a search for thehb

Author

R. DeSalvo, G. C. Moneti, E. I. Shibata, Thomas Ferguson, A. M. Halling, Y. Kubota, M. Worris, D. L. Hartill, R. Poling, Daniela Bortoletto, F. Morrow, J. W. Dewire, B. Gittelman, Ian Shipsey, D. Chen, V. Sharma, I. J. Kim, W. C. Li, M. Procario, R. Ehrlich, Xinchou Lou, T. Jensen, R. Fulton, C. Bebek, E. Nordberg, L. Garren, R. L. McIlwain, T. Skwarnicki, D. Besson, A. Silverman, R. Ng, F. M. Pipkin, M. D. Mestayer, M. S. Alam, T. Copie, D. G. Cassel, S. Nandi, P. Baringer, T. Letson, D. H. Miller, D. L. Kreinick, H. Kagan, Richard Wilson, P. Lubrano, R. S. Galik, James Mueller, S. E. Csorna, R. Holmes, K. Kinoshita, D. Riley, P. Haas, J. Byrd, M. Hempstead, A. J. Sadoff, T. J. V. Bowcock, D. Xiao, D. M. Coffman, John Yelton, B. K. Heltsley, E. Blucher, N. Horwitz, R. Namjoshi, Elliott Cheu, Glen D. Crawford, M. Pisharody, Karl Berkelman, V. Tanikella, D. R. Johnson, J. Kandaswamy, A. Jawahery, D. Peterson, Ian Brock, R. Kowalewski, C. H. Park, N. B. Mistry, Hans J. Vogel, N. Katayama, M. Goldberg, J. Wolinski, J. D. Lewis, C. R. Sun, R. D. Kass, Sheldon Stone, Paul Avery, D. Perticone, S. W. Gray, and J. Whitmore

Subjects
Physics, Crystallography, Particle decay, ComputingMilieux_THECOMPUTINGPROFESSION, Meson, Branching fraction, TheoryofComputation_ANALYSISOFALGORITHMSANDPROBLEMCOMPLEXITY, Electron–positron annihilation, Hadron, Bound state, Dalitz plot, Elementary particle
Abstract

We have investigated the transitions {Upsilon}(3{ital S}){r arrow}{pi}{sup +}{pi}{sup {minus}}{Upsilon}(1{ital S}), {Upsilon}(3{ital S}){r arrow}{pi}{sup +}{pi}{sup {minus}}{Upsilon}(2{ital S}) and the cascade process {Upsilon}(3{ital S}){r arrow}{Upsilon}(2{ital S})+{ital X},{Upsilon}(2{ital S}){r arrow}{pi}{sup +}{pi}{sup {minus}}{Upsilon}(1{ital S}), both in the exclusive decay mode, with the daughter {Upsilon} state decaying into two leptons, and in the inclusive decay mode, with the daughter {Upsilon} state decaying hadronically. Results are presented on the branching fractions and properties of the {pi}{sup +}{pi}{sup {minus}} system. The {pi}{sup +}{pi}{sup {minus}} invariant-mass spectra for the decays {Upsilon}(3{ital S}){r arrow}{pi}{sup +}{pi}{sup {minus}}{Upsilon}(1{ital S}) and {Upsilon}(3{ital S}){r arrow}{pi}{sup +}{pi}{sup {minus}}{Upsilon}(2{ital S}) are measured and compared with theoretical predictions. We also present the results of a search for the {ital h}{sub {ital b}}(1 {sup 1}{ital P}{sub 1}) and {Upsilon}(1 {sup 3}{ital D}) states in inclusive {Upsilon}(3{ital S}) decays, and for the exclusive decay {Upsilon}(3{ital S}){r arrow}{eta}{Upsilon}(1{ital S}).

Published
1991

25. Exclusive and inclusive semileptonic decays ofBmesons toDmesons

Author

Ron Poling, Maurice Garcia-Sciveres, G. C. Moneti, F. Morrow, Elliott Cheu, B. Geiser, J. Masui, Glen D. Crawford, K. Sparks, D. G. Cassel, E. I. Shibata, C. R. Ng, M. D. Mestayer, Y. Zhu, W. C. Li, M. Pisharody, S. W. Gray, Karl Berkelman, A. M. Halling, N. Katayama, Marina Artuso, T. Jensen, P. S. Drell, John Yelton, M. Worris, J. Whitmore, N. Horwitz, L. Garren, D. L. Kreinick, B. Gittelman, E. H. Thorndike, R. Ammar, V. Romero, J. K. Nelson, I. J. Kim, D. Xiao, F. M. Pipkin, P. Rubin, M. Thulasidas, J. Dominick, C. Bebek, Mats A Selen, D. Coppage, K. Honscheid, P. N. Wang, J. P. Alexander, A. J. Sadoff, M. Battle, Harris Kagan, W. Y. Chen, V. Sharma, S. Nandi, M. Sapper, R. Ehrlich, D. R. Johnson, S. Ro, R. Davis, R. S. Galik, D. M. Coffman, Chunjie Wang, M. M. Zoeller, B. K. Heltsley, D. Perticone, G. Zhu, Yoram Rozen, P. Haas, Richard Wilson, Philip Baringer, D. Riley, S. F. Schaffner, Yuichi Kubota, N. B. Mistry, J. Mevissen, J. Kandaswamy, D. Peterson, Daniela Bortoletto, J. W. Dewire, Sheldon Stone, Paul Avery, J. D. Lewis, C. R. Sun, R. D. Kass, D. Besson, R. Fulton, E. Nordberg, G. S. Ludwig, T. Letson, D. H. Miller, H. Worden, C. O'Grady, Ian Shipsey, Tomasz Skwarnicki, T. E. Browder, P. Wilson, A. Silverman, W. M. Yao, S. E. Csorna, K. Kinoshita, T. Haupt, J. Wolinski, V. Jain, D. L. Hartill, N. Kwak, Ha Lam, R. L. McIlwain, M. S. Alam, M. Procario, and M. Goldberg

Subjects
Semileptonic decay, Physics, Particle decay, Particle physics, Crystallography, Meson, Branching fraction, TheoryofComputation_ANALYSISOFALGORITHMSANDPROBLEMCOMPLEXITY, Electron–positron annihilation, Hadron, B meson
Abstract

We report new measurements of the branching fractions {ital B}({ital B}{sup {minus}}{r arrow}{ital D}{sup 0}{ital l{minus}}{bar {nu}}), {ital B}({ital {bar B}}{sup 0}{r arrow}{ital D}{sup +}{ital l{minus}}{bar {nu}}), and {ital B}({ital B}{sup {minus}}{r arrow}{ital D}{sup *0}{ital l{minus}}{bar {nu}}). Combining these results with our previous measurement of {ital B}({ital {bar B}}{sup 0}{r arrow}{ital D}{sup *+}{ital l{minus}}{bar {nu}}), we find that the ratio of semileptonic widths for final states with a vector meson and pseudoscalar meson is (2.6{sub {minus}0.6{minus}0.8}{sup +1.1+1.0}) and the ratio of charged- to neutral-{ital B}-meson lifetimes is (0.89{plus minus}0.19{plus minus}0.13)({ital f}{sub 00}/{ital f}{sub +{minus}}) where ({ital f}{sub 00}/{ital f}{sub +{minus}}) is the ratio of neutral- to charged-{ital B}-meson production at the {Upsilon}(4{ital S}). From the {ital {bar B}}{r arrow}{ital Dl}{sup {minus}}{bar {nu}} branching fraction, we calculate {vert bar}{ital V}{sub {ital c}{ital b}}{vert bar}=0.040{plus minus}0.006 {plus minus}0.006, where the first error is statistical and the second is systematic and dominated by the uncertainty in the {ital B}-meson lifetime.

Published
1991

26. Measurement of theΛc+decay-asymmetry parameter

Author

D. G. Cassel, R. Poling, N. Kwak, T. Skwarnicki, A. M. Halling, R. Ammar, D. Perticone, M. Goldberg, M. D. Mestayer, M. Worris, S. R. Ro, G. C. Moneti, Vivek Sharma, R. Ehrlich, M. Kelly, S.F. Schaffner, R. L. McIlwain, Sheldon Stone, Paul Avery, P. Rubin, J. Mevissen, J. Kandaswamy, J. Alexander, T. Letson, D. Z. Besson, T. Haupt, Janice Nelson, H. Worden, Wei Li, A. V. Barnes, F. Morrow, D. H. Miller, E. H. Thorndike, M. M. Zoeller, D. R. Johnson, Soumitra Nandi, D. Xiao, F. M. Pipkin, M. Garcia-Sciveres, Pu Wang, Vipul Jain, D. Coppage, N. Horwitz, M. S. Alam, M. Thulasidas, T. Jensen, J. Whitmore, D. Peterson, R. Fulton, R. Davis, C. R. Sun, R. D. Kass, G. Zhu, Y. Zhu, D. L. Kreinick, C. Bebek, R. S. Galik, W. Y. Chen, Cong Wang, Yoram Rozen, M. Battle, S. W. Gray, T. E. Browder, E. Nordberg, Philip Baringer, G. S. Ludwig, John Yelton, J. Dominick, C. O'Grady, M. Pisharody, Karl Berkelman, D. L. Hartill, P. Haas, S. E. Csorna, E. I. Shibata, Ha Lam, K. Kinoshita, D. M. Coffman, L. Garren, B. K. Heltsley, Richard Wilson, N. B. Mistry, J. Masui, Elliott Cheu, Glen D. Crawford, H. Kagan, D. Riley, J. Wolinski, W. M. Yao, J. D. Lewis, Yuichi Kubota, Daniela Bortoletto, Mats A Selen, N. Katayama, J. W. Dewire, A. J. Sadoff, K. Honscheid, Ian Shipsey, V. Romero, A. Silverman, M. Sapper, B. Gittelman, I. J. Kim, B. Geiser, K. Sparks, Marina Artuso, P. S. Drell, P. Wilson, C. R. Ng, and M. Procario

Subjects
Physics, Condensed matter physics, Meson, Computer Science::Information Retrieval, Hadron, General Physics and Astronomy, Elementary particle, Lambda, Baryon, Charmed baryons, Crystallography, Particle decay, TheoryofComputation_MATHEMATICALLOGICANDFORMALLANGUAGES, Pion, TheoryofComputation_LOGICSANDMEANINGSOFPROGRAMS, TheoryofComputation_ANALYSISOFALGORITHMSANDPROBLEMCOMPLEXITY, High Energy Physics::Experiment
Abstract

We report a measurement of {Lambda} polarization in the two-body decay {Lambda}{sub {ital c}}{sup +}{r arrow}{Lambda}{pi}{sup +}, in nonresonant {ital e}{sup +}{ital e}{sup {minus}} interactions from data taken with the CLEO detector. Using these data we have determined the parity-violating asymmetry decay parameter {alpha}{sub {Lambda}{ital c}} to be {minus}1.0{sub {minus}0.0}{sup +0.4}. We see no evidence for significant {Lambda}{sub {ital c}}{sup +} polarization.

Published
1990

27. Determination ofB(Ds+→φπ+) via observation ofDs+→φl+ν

Author

J. Alexander, M. Artuso, C. Bebek, K. Berkelman, T. Browder, D. G. Cassel, E. Cheu, D. M. Coffman, G. Crawford, J. W. DeWire, P. S. Drell, R. Ehrlich, R. S. Galik, B. Gittelman, S. W. Gray, A. M. Halling, D. L. Hartill, B. K. Heltsley, J. Kandaswamy, N. Katayama, D. L. Kreinick, J. D. Lewis, G. S. Ludwig, N. B. Mistry, J. Mueller, S. Nandi, E. Nordberg, C. O’Grady, D. Peterson, M. Pisharody, D. Riley, M. Sapper, M. Selen, A. Silverman, S. Stone, H. Worden, M. Worris, A. J. Sadoff, P. Avery, D. Besson, L. Garren, J. Yelton, T. Bowcock, K. Kinoshita, F. M. Pipkin, M. Procario, Richard Wilson, J. Wolinski, D. Xiao, Y. Zhu, R. Ammar, P. Baringer, D. Coppage, P. Haas, M. Kelly, N. Kwak, Ha Lam, S. Ro, Y. Kubota, J. K. Nelson, D. Perticone, R. Poling, R. Fulton, T. Jensen, D. R. Johnson, H. Kagan, R. Kass, F. Morrow, J. Whitmore, P. Wilson, D. Bortoletto, W.-Y. Chen, J. Dominick, R. L. McIlwain, D. H. Miller, C. R. Ng, S. F. Schaffner, E. I. Shibata, I. P. J. Shipsey, W.-M. Yao, K. Sparks, E. H. Thorndike, C.-H. Wang, M. S. Alam, I. J. Kim, W. C. Li, X. C. Lou, V. Romero, C. R. Sun, P.-N. Wang, M. M. Zoeller, M. Goldberg, T. Haupt, N. Horwitz, V. Jain, M. D. Mestayer, G. C. Moneti, Y. Rozen, P. Rubin, V. Sharma, T. Skwarnicki, M. Thulasidas, G. Zhu, S. E. Csorna, and T. Letson

Subjects
Physics, Crystallography, Particle decay, Meson, Branching fraction, TheoryofComputation_ANALYSISOFALGORITHMSANDPROBLEMCOMPLEXITY, Electron–positron annihilation, Hadron, General Physics and Astronomy, Elementary particle, B meson, Cornell Electron Storage Ring
Abstract

Using the CLEO detector at the Cornell Electron Storage Ring (CESR), we have determined the ratio {Gamma}({ital D}{sub {ital s}}{sup +}{r arrow}{phi}{ital l}{sup +}{nu})/{Gamma}({ital D}{sub {ital s}}{sup +} {r arrow}{phi}{pi}{sup +})=0.49{plus minus}0.10{sub {minus}0.14}{sup +0.10}. We use this measurement to derive {ital B}({ital D}{sub {ital s}}{sup +}{r arrow}{phi}{pi}{sup +}).

Published
1990

28. Exclusive and inclusive decays ofBmesons intoDsmesons

Author

D. Bortoletto, M. Goldberg, N. Horwitz, V. Jain, M. D. Mestayer, G. C. Moneti, V. Sharma, I. P. J. Shipsey, T. Skwarnicki, M. Thulasidas, S. E. Csorna, T. Letson, J. Alexander, M. Artuso, C. Bebek, K. Berkelman, D. G. Cassel, E. Cheu, D. M. Coffman, G. Crawford, J. W. DeWire, P. S. Drell, R. Ehrlich, R. S. Galik, B. Gittelman, S. W. Gray, A. M. Halling, D. L. Hartill, B. K. Heltsley, J. Kandaswamy, N. Katayama, D. L. Kreinick, J. D. Lewis, N. B. Mistry, J. Mueller, R. Namjoshi, S. Nandi, E. Nordberg, C. O’Grady, D. Peterson, M. Pisharody, D. Riley, M. Sapper, A. Silverman, S. Stone, H. Worden, M. Worris, A. J. Sadoff, P. Avery, D. Besson, L. Garren, J. Yelton, T. Bowcock, K. Kinoshita, F. M. Pipkin, M. Procario, Richard Wilson, J. Wolinski, D. Xiao, R. Ammar, P. Baringer, D. Coppage, P. Haas, Ha Lam, A. Jawahery, C. H. Park, Y. Kubota, J. K. Nelson, D. Perticone, R. Poling, R. Fulton, M. Hempstead, T. Jensen, D. R. Johnson, H. Kagan, R. Kass, F. Morrow, J. Whitmore, P. Wilson, W.-Y. Chen, R. L. McIlwain, J. Dominick, D. H. Miller, C. R. Ng, S. F. Schaffner, E. I. Shibata, W.-M. Yao, K. Sparks, E. H. Thorndike, C.-H. Wang, M. S. Alam, I. J. Kim, W. C. Li, X. C. Lou, C. R. Sun, P.-N. Wang, and M. I. Zoeller

Subjects
Physics, Statistics::Theory, Particle physics, Statistics::Applications, Meson, Branching fraction, High Energy Physics::Phenomenology, Hadron, General Physics and Astronomy, Elementary particle, Particle decay, High Energy Physics::Experiment, Production (computer science), B meson, Boson
Abstract

We have studied the production of ${\mathit{D}}_{\mathit{s}}$ mesons in the decays of B mesons at the \ensuremath{\Upsilon}(4S) resonance. We report on the first observation of exclusive B-meson decays B-g${\mathit{D}}_{\mathit{s}}^{\mathrm{\ensuremath{-}}}$${\mathit{D}}^{\mathrm{*}+}$, B\ensuremath{\rightarrow}${\mathit{D}}_{\mathit{s}}^{\mathrm{\ensuremath{-}}}$${\mathit{D}}^{+}$, and B\ensuremath{\rightarrow}${\mathit{D}}_{\mathit{s}}^{\mathrm{\ensuremath{-}}}$${\mathit{D}}^{0}$. We also present a new measurement of the branching ratio and the momentum spectrum for the inclusive decay B\ensuremath{\rightarrow}${\mathit{D}}_{\mathit{s}}$X.

Published
1990

29. Radiativeϒ(1S)decays

Author

Thomas Ferguson, B. Gittelman, I. J. Kim, R. S. Galik, Y. Kubota, F. Morrow, J. Whitmore, H. Kagan, Daniela Bortoletto, D. L. Hartill, W. M. Yao, V. Sharma, R. Ehrlich, J. W. Dewire, A. Jawahery, A. M. Halling, R. Poling, W. C. Li, E. H. Thorndike, T. Copie, James Alexander, M. Worris, D. G. Cassel, D. L. Kreinick, M. Procario, T. Jensen, F. M. Pipkin, M. Pisharody, J. Byrd, L. Garren, Helmut Vogel, P. Lubrano, Karl Berkelman, A. J. Sadoff, S. Nandi, D. Xiao, Xinchou Lou, Themistocles Bowcock, Ian Shipsey, M. S. Alam, S. E. Csorna, C. Bebek, J. Dominick, Richard Wilson, M. Sapper, John Yelton, K. Sparks, W. Y. Chen, C. R. Ng, D. Perticone, D. Riley, Ian Brock, D. R. Johnson, R. Kowalewski, T. Skwarnicki, M. Hempstead, Persis S. Drell, A. Silverman, P. Haas, James Mueller, K. Kinoshita, C. H. Park, Marina Artuso, D. Besson, Philip Baringer, Elliott Cheu, H. Worden, Glen D. Crawford, N. B. Mistry, N. Horwitz, R. L. McIlwain, N. Katayama, D. M. Coffman, M. D. Mestayer, E. Blucher, B. K. Heltsley, R. Namjoshi, C. O'Grady, J. Kandaswamy, D. Peterson, R. Fulton, T. Letson, D. H. Miller, E. Nordberg, J. Wolinski, M. Goldberg, Ha Lam, Sheldon Stone, Paul Avery, J. D. Lewis, C. R. Sun, R. D. Kass, G. C. Moneti, E. I. Shibata, and S. W. Gray

Subjects
Physics, Crystallography, Particle physics, Angular distribution, Meson, Branching fraction, TheoryofComputation_ANALYSISOFALGORITHMSANDPROBLEMCOMPLEXITY, Hadron, Radiative transfer, Elementary particle, Quarkonium, Boson
Abstract

We report on a study of exclusive radiative decays of the {Upsilon}(1{ital S}) resonance. We have considered decays into final states of the form {Upsilon}{r arrow}{gamma}{ital n}({ital h}{sup +}{ital h}{sup {minus}}), with ({ital h}{sup +}{ital h}{sup {minus}}) denoting a charged-hadron pair (either {pi}{sup +}{pi}{sup {minus}},{ital K}{sup +}{ital K}{sup {minus}}, or {ital p{bar p}}), and {ital n} denoting the number of such pairs in the event. We measure branching ratios for {ital n}=2, 3, and 4, and search for structure in the recoiling hadronic system. For the {ital n}=1 case, we present upper limits. No evidence is observed for two-body radiative decays of the {Upsilon}(1{ital S}) meson in any of the above channels.

Published
1990

30. Observation ofB-meson semileptonic decays to noncharmed final states

Author

W. M. Yao, J. D. Lewis, M. Thulasidas, H. Kagan, A. M. Halling, M. Procario, R. Ehrlich, James Mueller, D. L. Kreinick, C. Bebek, Philip Baringer, A. J. Sadoff, M. Worris, Pu Wang, Cong Wang, R. Fulton, Daniela Bortoletto, Ian Shipsey, D. Z. Besson, J. Kandaswamy, D. R. Johnson, K. Sparks, John Yelton, J. W. Dewire, Xinchou Lou, D. G. Cassel, R. Ammar, T. Letson, D. M. Coffman, D. L. Hartill, E. I. Shibata, D. Peterson, R. Namjoshi, B. K. Heltsley, Ha Lam, C. R. Ng, P. S. Drell, W. Y. Chen, S. W. Gray, A. Silverman, Marina Artuso, Thomas Ferguson, R. Poling, E. Nordberg, P. Wilson, Elliott Cheu, N. Horwitz, J. Whitmore, L. Garren, D. Perticone, M. Hempstead, Glen D. Crawford, Vipul Jain, B. Gittelman, C. H. Park, T. Jensen, Janice Nelson, M. Sapper, I. J. Kim, N. B. Mistry, J. Wolinski, H. Worden, A. Jawahery, M. Pisharody, Karl Berkelman, Soumitra Nandi, C. O'Grady, C. R. Sun, R. D. Kass, Sheldon Stone, Paul Avery, M. D. Mestayer, E. H. Thorndike, F. M. Pipkin, T. J. V. Bowcock, D. Coppage, R. L. McIlwain, R. S. Galik, M. S. Alam, P. Haas, N. Katayama, T. Skwarnicki, M. Goldberg, G. C. Moneti, Vivek Sharma, S.F. Schaffner, Wei Li, D. H. Miller, J. Alexander, Richard Wilson, F. Morrow, D. Xiao, S. E. Csorna, M. I. Zoeller, K. Kinoshita, D. Riley, I. C. Brock, and Yuichi Kubota

Subjects
Semileptonic decay, Physics, Particle decay, Particle physics, Meson, Branching fraction, Electron–positron annihilation, Hadron, General Physics and Astronomy, B meson, Quarkonium
Abstract

We report the first evidence of charmless semileptonic decays of {ital B} mesons. In the momentum interval 2.4--2.6 GeV/{ital c} where the background from {ital b}{r arrow}{ital cl}{nu} is negligible, the average of the measured {ital b}{r arrow}{ital ue}{nu} and {ital b}{r arrow}{ital u}{mu}{nu} partial branching ratios is {Delta}{ital B}{sub {ital ub}}(2.4,2.6) =(1.8{plus minus}0.4{plus minus}0.3){times}10{sup {minus}4}. Inclusion of data from the interval 2.2--2.4 GeV/{ital c}, where the lepton yield is dominated by {ital b}{r arrow}{ital cl}{nu}, gives {Delta}{ital B}{sub {ital ub}}(2.2,2.6) =(3.3{plus minus}0.8{plus minus}0.8){times}10{sup {minus}4}. {vert bar}{ital V}{sub {ital ub}}/V{sub cb}{vert bar} depends on the theoretical model of {ital b}{r arrow}{ital ul}{nu} decay and is approximately 0.1.

Published
1990

31. Measurement of the Average Time-Integrated Mixing Probability of b-Flavored Hadrons Produced at the Tevatron

Author

L. Lueking, Petra Merkel, Laurent Vacavant, S. Krzywdzinski, S. Cabrera, A. Artikov, S. Waschke, H. Sato, Jg da Costa, C. Pagliarone, S. Galeotti, H. Wenzel, D. Mihalcea, T. McMahon, S. Segler, Carsten Rott, A. Savoy-Navarro, J. Spalding, R. Van Kooten, S. Wolbers, R. K. Plunkett, B. F. L. Ward, Dittmann, J. Wyss, I.E. Chirikov-Zorin, T. Marshall, G. P. Grim, Masaaki Tanaka, J. Wolinski, L. R. Flores-Castillo, F. Lehner, J. Carlson, M. Sosebee, R. Napora, Se Kuhlmann, W. C. Wester, A. Nomerotski, Ap Vorobiev, A. Barbaro-Galtieri, M. M. Deninno, Giovanni Bellettini, Monica D'Onofrio, A. J. Martin, Dugan O'Neil, Maxwell Chertok, A. Patwa, Gp Yeh, Glagolev, Morgan Martin, Jay Hauser, Z. Yu, Meenakshi Narain, S. L. Wu, Maria Spiropulu, D. Theriot, R. M. Harris, Christophe Royon, P. Sinervo, Simak, D. Vucinic, F. Semeria, C. Sanchez, Andreas Heiss, Matthew Herndon, T. Nigmanov, Wk Sakumoto, T. A. Keaffaber, Jacobo Konigsberg, L. Pondrom, E. Wicklund, K. Ragan, Sorin, H.E. Miettinen, K. S. McFarland, A. L. Scott, M. T. Cheng, M. H.G. Souza, H. Minato, S. Tether, Bm Sabirov, M. Tecchio, S. Reucroft, Mark Turner, Sally Seidel, A. Scribano, R. J. Tesarek, Aw Chan, A. Varganov, Manfred Paulini, G.V. Velev, Vs Narasimham, Jh von Wimmersperg-Toeller, H. Nakada, K. Kurino, S. Uozumi, S. Rolli, Benjamin Kilminster, Duncan Carlsmith, J. G. Loken, Nk Mondal, I. Fiori, Tj Phillips, Serban Protopopescu, D. Partos, N. Lai, Kazuhiko Hara, F. Strumia, Barry Blumenfeld, Andrea Sansoni, J. Wahl, A. Solodsky, P. Singh, H. Weerts, A. Roy, Scott Snyder, R. Vidal, J. N. Bellinger, O. Peters, Nicola Bacchetta, Hs Budd, A. Zsenei, Rj Madaras, Michael Shupe, F. Niell, B. Kothari, S. Tkaczyk, David Stuart, P. Gatti, J. C. Yun, Papadimitriou, Yc Liu, Louis Lyons, R. Hughes, R. G. Feild, Virgil E Barnes, Saverio D'Auria, O. Lobban, S. D. Worm, F. Villeneuve-Seguier, Koji Terashi, H. Niu, Wood, J. G.R. Lima, Q. Fan, Ha Neal, Stolin, A. Tollestrup, P. Schlabach, Stefano Belforte, J. S. Conway, Gervasio Gomez, Tetsuo Arisawa, C. Neu, Daniel Whiteson, T. Kaneko, L. Ristori, J. F. Patrick, Wc Wester, A. M. Stefanini, M. Binkley, Ryuichi Takashima, N. Bruner, Ab Wicklund, A. Hocker, Marcin Wladyslaw Wolter, Claudio Ferretti, J. Steele, A. Meyer, A. Cerri, Andrew Beretvas, Bt Huffman, Fedor Prokoshin, Pierre Savard, A. J. Slaughter, Yasuo Fukui, Hb Prosper, T. Okusawa, J. Snow, Shinhong Kim, T. Devlin, Av Kostritskiy, C.-S. Lin, T. Wright, Bj Kim, Kai Yi, C. Dionisi, A. Melnitchouk, P. S. Chang, Frank Chlebana, N.V. Mokhov, N. Turini, Michael Mulhearn, J. Lys, Pm Tuts, L. Malferrari, N. Eddy, R. J. Hollebeek, Ricardo Eusebi, S. Nelson, Wendy Taylor, W. Carithers, S. Murgia, J. A.J. Matthews, Q. Xu, L. Santi, N. Oshima, Giorgio Chiarelli, Roger Moore, M. J. Wang, R. Paoletti, Paolo Calafiura, P. Tamburello, A. M. Walsh, S. H. Oh, M. Mishina, Nuno Leonardo, Neubauer, R. Roser, Ivan Vila, Fumihiko Ukegawa, J. Huston, Christina Nelson, D. Lucchesi, Rd Schamberger, Zm Wang, D Zucchelli Sychev, Andrey Korytov, Thilo Pauly, M. Spezziga, M. Cordelli, G. Busetto, A Neal HKorytov, J.I. Friedman, D. Waters, K. Tollefson, T. Miao, R. M. Haas, G. W. Foster, Kohei Yorita, D. O. Litvintsev, A. Loginov, Na Naumann, G. Piacentino, T. L. Watts, He Montgomery, C. Smith, Hs Mao, Teresa Rodrigo, A. Reichold, T. Walter, Matthew Jones, Rk Shivpuri, M. Guenther, Hd Wahl, C. H. Wang, D. Usynin, E. McKigney, K. Karr, Y. Morita, Vl Malyshev, Shuichi Kunori, Y. Le, M. von der Mey, Yi Chen, M. E. Convery, A. V. Kotwal, Hiroshi Ikeda, A. Semenov, N. Kuznetsova, A. Menzione, Cheng Chen, Maxim Goncharov, E. E. Schmidt, Nagaslaev, J. Siegrist, Hl Melanson, M. P. Giordani, Georg Steinbrück, Xin Wu, D. P. Stoker, S. Miscetti, T. M. Liss, U. Joshi, M. Coca, E. Kovacs, Nr Stanton, Luca Scodellaro, T. Shibayama, M. Loreti, J. S. H. Lee, R. Culbertson, N. B. Wallace, M. P. Schmidt, Sinead Farrington, Yd Oh, Andrew White, M. Brozovic, H. Ray, M. G. Albrow, M. A. Kubantsev, Y. Miyazaki, Jonas Rademacker, Y. Bonushkin, Martin, A. Rakitine, Joel Goldstein, K. D. Hoffman, H. Toyoda, Pa Rapidis, A. K.A. Maciel, J. Warchol, Z. Wan, Alexander Kupco, K. L. Byrum, R. G. Wagner, Jian Zhou, T. Handa, Neeti Parashar, M. Tönnesmann, R. St. Denis, Nikos Varelas, S. Donati, Kenichi Hatakeyama, D. J. Ambrose, Mg Greene, S. P. Pappas, R. Kephart, N. Moggi, Frank Hartmann, As Turcot, Alan Sill, Don Lincoln, A. Bodek, J. Iwai, R. C. Webb, D. Amidei, Igor Volobouev, Andrew Ivanov, M. Popovic, Mb Przybycien, J. Kotcher, Y. Iwata, P. Azzi-Bacchetta, Stefano Giagu, Pf Shepard, A. T. Goshaw, Itsuo Nakano, Aaron Dominguez, S. Kartal, Pierre Petroff, C. Bromberg, S. W. Lee, P. Giromini, U. K. Yang, G. Veramendi, Anna Zanetti, H. Kasha, As Thompson, L. Zanello, N. Parua, Randy Ruchti, Joe Incandela, A. Munar, Mj Kim, Christos Leonidopoulos, N. S. Lockyer, Mark Campbell, E. Thomson, Roberto Rossin, M. Bishai, Leonard Spiegel, A. Bolshov, C. Yosef, Oguri, G. Punzi, T. Nakaya, C. Paus, M. Franklin, J. Valls, M. Lindgren, D. Wolinski, Jane Nachtman, Vaniev, B. Tannenbaum, Dmitri Tsybychev, J. B. Liu, S. Lusin, Darin Acosta, Tomoko Yoshida, F. Happacher, P. T. Chang, H. Akimoto, S. Sarkar, J. T. Linnemann, G. Signorelli, M. Worcester, Dario Bisello, Werner Riegler, A. Bhatti, Daniela Bortoletto, Aa Mayorov, G. Martignon, Stephan Lammel, J. C.L. Tseng, A. Robinson, E. Gerstein, Cigdem Issever, Blusk, Kevin Burkett, M. Kelly, D. Tonelli, P. Padley, K. Kelley, Dh Kim, Thomas LeCompte, Hugh Williams, Hyun-Chul Kim, G. Manca, Rp Smith, K. Anikeev, D. P. Benjamin, Joachim Heinrich, Ve Kuznetsov, D. Errede, R. Piegaia, M. H. Schmitt, S. H. Kim, G. Sajot, K. Kotelnikov, A. Yagil, T. H. Kim, P. Nicolaidi, Tony Affolder, Ra Sidwell, Tg Trippe, T. Rockwell, L. Holloway, M. Garcia-Sciveres, Gordon Watts, Ea Kozlovsky, A. Ribon, Krutelyov, Michael Rijssenbeek, S. Behari, T. Unverhau, Alexei Safonov, Y. Kato, D. Neuberger, G. Guillian, Y. Song, D. Khazins, Flera Rizatdinova, M. Strauss, J. Olsen, Yk Kim, P. Murat, Trevor Vickey, O. Poukhov, Jing Li, A. Mukherjee, K. T. Pitts, Konstanty Sumorok, G. Pauletta, Catherine Newman-Holmes, Song-Ming Wang, T. Kikuchi, F. Azfar, Tong Gao, M. Kirk, I. V. Gorelov, T. Speer, K. Sliwa, J. C. Freeman, A. Ruiz, S. Klimenko, Robert Snihur, Da Stoyanova, Tommaso Dorigo, Giuseppe Latino, P. Yeh, C. Miao, J. Wu, N. Sotnikova, Patrick Slattery, Bl Winer, P Tan, Y. Gotra, A. Castro, Mitchell Wayne, J. Yoh, G. Chlachidze, Ariel Schwartzman, D. De Pedis, I. Yu, I. Zaw, W. H. Chung, T. Müller, Amitabh Lath, Wm Lee, R. E. Blair, Petar Maksimovic, F. Zetti, A. Wyatt, Melissa Ridel, J. Antos, Alexander Leflat, D. W. Gerdes, M. Strovink, F. Rimondi, Elemer Nagy, Ping-Kun Teng, L. Stutte, Paola Giannetti, B. A. Barnett, E. Vataga, R. Vilar, R. D. Kennedy, H. Schellman, A. Gresele, Srinivasan Rajagopalan, F. DeJongh, J. Proudfoot, Teruki Kamon, B. Whitehouse, Sek Mattingly, E. James, M. Mangano, K. Li, P. Mazzanti, Craig Blocker, D. Cauz, Ronald E. Miller, Miriam Lucio Martinez, Kaori Maeshima, J. Thom, M. Merkin, W. Caskey, A. Connolly, D. Ryan, F. Palmonari, T. Vaiciulis, D. Glenzinski, M. H. Kirby, William Trischuk, L. Nodulman, Mi Martin, Mk Unel, Kevin Lannon, P. Wilson, T. Asakawa, M. Menguzzato, T. Yamashita, S. Baroiant, A. Sedov, Guenakh Mitselmakher, Nw Reay, Robin Erbacher, J. Kang, I. K. Furic, W-M. Yao, Kw Merritt, S. Wolinski, Lee Sawyer, E. Engels, M. Musy, T.P. Shah, L. Rosenson, Av Kozelov, Jeffrey Berryhill, S. Willis, Frank Würthwein, S. R. Hou, M. Barone, A. Penzo, J. P. Fernandez, Steve Nahn, C. Lundstedt, L. E. Kirsch, J. Mayer, W. Badgett, S. Errede, Mossadek Talby, M. Shimojima, R. Madrak, K. Lee, A. D. Hardman, K. Takikawa, F Zucchelli SZetti, Andreas Warburton, J. R. Bensinger, Krishnaswamy, Eva Halkiadakis, P. McIntyre, T. Pratt, Af Garfinkel, R. Thurman-Keup, Shapiro, M. L. Chu, T. J. N. Nelson, Cyp Ngan, Mosè Mariotti, W. H. Bell, Giorgio Apollinari, Richard B. Lipton, T. Kuwabara, C. S. Hill, Sandra Leone, P. B. Renton, S. S. Yu, Ma Strang, E. Moore, R Prepost, M. Iori, A. Bocci, Da Wijngaarden, Greg Landsberg, Rw Moore, S. Lami, Yd Mutaf, Michele Gallinaro, K. Soustruznik, F. Ptohos, Peter Wittich, T. Ohsugi, M. J. Shochet, J. Womersley, Sirotenko, C. I. Ciobanu, Kevin Einsweiler, W. J. Robertson, T. Wilkes, Jf de Troconiz, T. Watanabe, Gino Bolla, M. Rescigno, A. Sukhanov, A. G. Clark, C. Mesropian, Koji Yamamoto, R. Yamada, Andre Sznajder, J. Kroll, Sj Wimpenny, Bg Pope, W. Ashmanskas, C. Green, C. R. Hall, Mark Kruse, W. Orejudos, P. Krivkova, Paul Tipton, A. Korn, J. Lancaster, R. Handler, Ak Zucchelli Spatra, Y. S. Chung, S. De Cecco, C. Luo, S. Dell'Agnello, At Laasanen, J. S. Miller, P. F. Derwent, B. Iyutin, M. Weber, Wolfgang Wagner, Elizaveta Shabalina, M. Lancaster, Y. Seiya, J. I. Lamoureux, Y. Kulik, D. E. Pellett, Hahn, A. Stone, L. Christofek, E. Brubaker, F. Spinella, S. Vejcik, T. Suzuki, T. Takano, A. Gallas, J. Cranshaw, A. Pompos, Antonio Sidoti, S. Tentindo-Repond, J. W. Chapman, S. Bailey, Mauro Dell'Orso, C. Haber, B. Flaugher, Fedor Ratnikov, M. Hennecke, D. Dagenhart, Henri Bachacou, G. Pope, D. Winn, Kiminori Kondo, Reiyo Oishi, J. Boudreau, M. Riveline, David Saltzberg, T. Nunnemann, P. Yoon, Qz Li, L. Demortier, A. M. Lee, P. Sphicas, Sergey Kuleshov, A. Brandl, Lucio Cerrito, John Huth, Jianming Qian, John Strologas, Jy Chung, Jeffrey F. Krane, G. Introzzi, Robert J. McCarthy, M. Gold, Gerry Bauer, Aa Volkov, Sl Linn, J. Solomon, T. Ohmoto, D. Reher, Gr Snow, J. Budagov, R. L. Wagner, K. Goulianos, R. L. Lander, D. Shpakov, J. Piedra, T. Moulik, P. de Barbaro, O. Pukhov, Alberto Santoro, Franco Bedeschi, D. Toback, P. Lukens, P. Rubinov, K. Giolo, Jp Negret, P. Koehn, Jd Lewis, Y Pan, Fd Snider, L. Pescara, C. Grosso-Pilcher, N. Goldschmidt, T. Liu, R. Partridge, Hiroto Kambara, Kenneth Bloom, Sarah Demers, Manankov, R. D. Field, A.Castro, M.Deninno, L.Malferrari, P.Mazzanti, N.Moggi, F.Rimondi, F.Semeria, S.Zucchelli, CDF Collaboration, Clark, Allan Geoffrey, Kambara, Hisanori, Speer, Thomas, Strumia Michelini, Federica, and Wu, Xin

Subjects
Physics, Nuclear and High Energy Physics, Particle physics, CCFM, Hadron, P(P)OVER-BAR COLLISIONS, High Energy Physics::Phenomenology, Tevatron, FOS: Physical sciences, p(p)over-bar collisions, cross-section, collider, tev, generator, detector, ccfm, CROSS-SECTION, COLLIDER, TEV, GENERATOR, DETECTOR, ddc:500.2, High Energy Physics - Experiment, High Energy Physics - Experiment (hep-ex), Physics::Accelerator Physics, High Energy Physics::Experiment, Fermilab, Mixing (physics)
Abstract

We have measured the number of like-sign (LS) and opposite-sign (OS) lepton pairs arising from double semileptonic decays of $b$ and $\bar{b}$-hadrons, pair-produced at the Fermilab Tevatron collider. The data samples were collected with the Collider Detector at Fermilab (CDF) during the 1992-1995 collider run by triggering on the existence of $\mu \mu$ and $e \mu$ candidates in an event. The observed ratio of LS to OS dileptons leads to a measurement of the average time-integrated mixing probability of all produced $b$-flavored hadrons which decay weakly, $\bar{\chi} = 0.152 \pm 0.007$ (stat.) $\pm 0.011$ (syst.), that is significantly larger than the world average $\bar{\chi} = 0.118 \pm 0.005$., Comment: 47 pages, 10 figures, 15 tables Submitted to Phys. Rev. D

Published
2004

32. Search for the Supersymmetric Partner of the Top Quark in Dilepton Events frompp¯Collisions ats=1.8 TeV

Author

F. Strumia, Joe Kroll, Andrea Sansoni, Ivan-Kresimir Furic, S. Donati, P. Gatti, F. Würthwein, W. Ashmanskas, M. L. Chu, Mosè Mariotti, Monica D'Onofrio, K. S. McFarland, Louis Lyons, C. S. Hill, D. Waters, V. Nagaslaev, M. Cordelli, G. Busetto, K. Kotelnikov, Gino Bolla, S. Tether, M. Bishai, Hajin Kim, A. Barbaro-Galtieri, D. Vucinic, F. Semeria, T. A. Keaffaber, M. Mishina, M. Hennecke, R. G. Wagner, Nuno Leonardo, M. Spezziga, W. K. Sakumoto, L. Demortier, K. Kurino, Fumihiko Ukegawa, I. Fiori, A. W. Scott, D. Partos, G. Manca, A. Meyer, Soo-Bong Kim, Andrew Beretvas, A. Semenov, J. Yoh, J. B. Liu, Yanwen Liu, B. F. L. Ward, R. J. Miller, T. Pauly, James Proudfoot, A. Loginov, A. Brandl, A. Connolly, D. Ryan, A. B. Wicklund, A. Mukherjee, Stefano Belforte, E. E. Schmidt, W. Carithers, S. Murgia, C. Grosso-Pilcher, B. Iyutin, T. Moulik, Luca Scodellaro, T. Asakawa, A. Sedov, John Huth, Robert M Harris, D. Dagenhart, G. Veramendi, N. Goldschmidt, H. Toyoda, Andrea Castro, D. Khazins, K. Karr, Wolfgang Wagner, Jay Dittmann, J. Carlson, Jay Hauser, J. W. Chapman, R. Vidal, D. Cauz, J. Wyss, L. Ristori, E. James, H. Niu, K. L. Byrum, C. I. Ciobanu, Andrea Bocci, G. Chiarelli, Y. Seiya, M. Coca, B. T. Huffman, S. Zucchelli, R. E. Blair, F. Rimondi, R. Culbertson, T. Handa, G. Punzi, E. Engels, J. Berryhill, Stefano Giagu, Jy Chung, N. Bruner, P. Giromini, A. Roy, M. Karagoz Unel, M. Barone, P. Schlabach, M. Kelly, Y. Gotra, K. D. Hoffman, J. P. Fernandez, Nicola Bacchetta, F. Bedeschi, Tommaso Dorigo, Gervasio Gomez, P. Wilson, S. Bailey, S. Kartal, J. Steele, H. H. Williams, G. Introzzi, A. Stefanini, P. F. Shepard, S. H. Oh, Marc Weber, Andrey Korytov, G. Latino, Y. Iwata, Anna Zanetti, H. Kasha, P. Murat, H. Minato, J. Lee, R. Vilar, M. M. Deninno, B. Whitehouse, N. Kuznetsova, V. Glagolev, J. Strologas, Michele Gallinaro, Alexei Safonov, Joe Incandela, Stephan Lammel, Lucio Cerrito, J. C. Yun, D. Ambrose, G. Velev, T. H. Kim, T. Unverhau, D. Reher, H. Akimoto, J. Piedra, Tong Gao, G. W. Foster, Daniela Bortoletto, A. Sukhanov, T. Kikuchi, J. Budagov, S. R. Hahn, Amitabh Lath, P. Yeh, James Bensinger, Q. Fan, M. Martin, J. D. Lewis, R. Madrak, Jane Nachtman, D. Glenzinski, Itsuo Nakano, M. E. Convery, M. Kirk, B. A. Barnett, Giorgio Apollinari, F. Zetti, N. Lai, Alan Garfinkel, Petra Merkel, H. Sato, S. Baroiant, Lawrence Nodulman, Claudio Ferretti, F. DeJongh, Teruki Kamon, H. Ray, K. Lannon, G. Bauer, Craig Blocker, R. L. Lander, C. Nelson, A. D. Hardman, F. D. Snider, J. Antos, T. Devlin, M. P. Schmidt, P. Koehn, B. L. Winer, Kazuhiko Hara, Robin Erbacher, T. Pratt, Kaori Maeshima, E. Vataga, Z. Wan, W-M. Yao, A. Rakitine, Konstanty Sumorok, T. Kuwabara, J. Cranshaw, M. Rescigno, T. Vaiciulis, F. Ratnikov, B. Flaugher, M. Brozovic, Michael Schmitt, A. Artikov, S. Wolbers, S. Cabrera, D. De Pedis, R. E. Hughes, S. Waschke, V. Martin, P. Lukens, Matthew Jones, R. Oishi, A. G. Clark, P. Azzi-Bacchetta, D. W. Gerdes, M. Menguzzato, Carsten Rott, V. Papadimitriou, A. Hocker, Joel Goldstein, Chunhui Chen, H. Wenzel, Petar Maksimovic, C. Bromberg, J. N. Bellinger, A. Dominguez, Daijin Kim, R. Napora, Tiehui Liu, A. Ivanov, M. J. Wang, T. Miao, R. M. Haas, L. R. Flores-Castillo, Y. C. Chen, Aldo Penzo, M. Wolter, S. E. Kuhlmann, H. Bachacou, K. T. Pitts, C. R. Hall, M. Iori, Mark Kruse, Matthew Herndon, D. Winn, James D. Olsen, G. Chlachidze, J. Spalding, M. Martinez, A. S. Thompson, A. Heiss, J. Conway, S. Lusin, E. Wicklund, Douglas Benjamin, Fedor Prokoshin, F. Happacher, P. T. Chang, Pierre Savard, Christopher Neu, Yasuo Fukui, Paul Tipton, R. J. Tesarek, R. Kephart, M. Tecchio, G. P. Grim, S. Rolli, Benjamin Kilminster, Masaaki Tanaka, A. Varganov, Evelyn Thomson, Dario Bisello, A. Bhatti, F. Niell, T. Okusawa, A. P. Colijn, K. Giolo, Xin Wu, Hiroto Kambara, Barry Blumenfeld, R. L. Wagner, Aw Chan, N. Moggi, Frank Hartmann, Kenneth Bloom, D. Amidei, G. Pope, L. Pescara, Song-Ming Wang, P. Mazzanti, W. Orejudos, Frank Chlebana, Alan Sill, A. T. Goshaw, S. Demers, Duncan Carlsmith, U. K. Yang, Kevin Einsweiler, T. Wilkes, M. Dell'Orso, F. Azfar, Maurice Garcia-Sciveres, J. S. Miller, Kevin Burkett, A. Reichold, M. J. Kim, K. Takikawa, F. Palmonari, Guenakh Mitselmakher, N. S. Lockyer, T. Yoshida, J. Valls, D. Wolinski, M. Guenther, Mark Neubauer, S. Tkaczyk, David Stuart, S. R. Hou, R. G. Feild, J. A.J. Matthews, S. Errede, S. Lami, T. Shah, K. Kelley, S. Leone, G. P. Yeh, Manfred Paulini, J. Huston, K. Anikeev, L. Malferrari, H. Nakada, R. Thurman-Keup, P. N. Singh, J. Kang, Cyp Ngan, Eva Halkiadakis, Roberto Rossin, H. S. Budd, D. Errede, Tony Liss, Saverio D'Auria, Roger Moore, M. H. Kirby, D. O. Litvintsev, Christina Mesropian, Subir Sarkar, O. Lobban, Paolo Calafiura, Teresa Rodrigo, Yongsun Kim, W. H. Bell, T. J. Phillips, Y. Morita, Y. Le, L. Santi, M. von der Mey, Maxwell Chertok, L. Rosenson, Y. Kato, D. Neuberger, G. Guillian, C. Issever, J. Guimaraes Da Costa, D. E. Pellett, R. D. Field, S. Nahn, P. B. Renton, D. Tonelli, L. Christofek, L. E. Kirsch, D. Tsybychev, T. Shibayama, Z. Yu, Marjorie Shapiro, Catherine Newman-Holmes, T. Suzuki, C. Sanchez, Umesh Joshi, Ricardo Eusebi, A. J. Slaughter, Tetsuo Arisawa, M. Loreti, Riccardo Paoletti, P. Sinervo, A. Pompos, E. Moore, N. Eddy, R. J. Hollebeek, F. Ptohos, Julia Thom, I. V. Gorelov, R. D. Kennedy, T. Speer, W. J. Robertson, K. Terashi, S. H. Kim, J. Siegrist, Nicola Turini, A. T. Laasanen, T. Watanabe, S. Worm, T. Ohsugi, G. Piacentino, S. Blusk, Jochen Jens Heinrich, M. Campbell, P. Giannetti, J. Lancaster, R. Handler, Y. S. Chung, S. Miscetti, E. Gerstein, Shin-Shan Yu, W. C. Wester, M. J. Shochet, S. Dell'Agnello, A. Ribon, Aurore Savoy-Navarro, G. Bellettini, Jacobo Konigsberg, Young Do Oh, Th. Müller, J. Tseng, G. Martignon, R. Snihur, K. Sliwa, S. Klimenko, C. Pagliarone, S. Galeotti, S. Behari, M. T. Cheng, J. Boudreau, P. K. Teng, M. Spiropulu, M. Riveline, C. Green, A. Korn, Sally Seidel, Maxim Goncharov, Y. Bonushkin, J. Wolinski, A. Nomerotski, David Saltzberg, T. Nigmanov, Kai Yi, C. Dionisi, E. Brubaker, S. Vejcik, J. Lys, T. Takano, R. Roser, Ivan Vila, M. Mulhearn, W. Riegler, J. G. Loken, J.I. Friedman, C. H. Wang, M. Tönnesmann, Timothy Knight Nelson, Sinead Farrington, D. Lucchesi, N. B. Wallace, A. Solodsky, R. St. Denis, Beom Jun Kim, A. Bodek, Kenichi Hatakeyama, C. Haber, J. Iwai, C. Paus, M. Franklin, L. Zanello, C. Yosef, Alessandro Cerri, S. De Cecco, F. Spinella, J. C. Freeman, A. Ruiz, P. F. Derwent, K. Goulianos, M. Lancaster, T. Watts, P. de Barbaro, J. F. de Troconiz, P. Tamburello, K. Tollefson, O. Pukhov, I.E. Chirikov-Zorin, D. Toback, Hiroshi Ikeda, M. Gold, A. J. Martin, L. Pondrom, Igor Volobouev, E. Kovacs, T. Ohmoto, C. S. Lin, A. Gallas, Vyacheslav Krutelyov, A. Gresele, MarioPaolo Giordani, Leonard Spiegel, A. Bolshov, Darin Acosta, K. Kondo, A. Munar, Peter McIntyre, G. Pauletta, I. Yu, W. H. Chung, P. Sphicas, Virgil E Barnes, M. Mangano, K. Li, T. Kaneko, P. S. Chang, W. Caskey, A. Menzione, William Trischuk, A. Scribano, M. Binkley, M. G. Albrow, Jonas Rademacker, R. Takashima, Y. Miyazaki, S. Wolinski, S. W. Lee, W. Badgett, M. Shimojima, M. Lindgren, B. Tannenbaum, Thomas LeCompte, A. Sidoti, L. Holloway, J. Patrick, and T. Affolder

Subjects
Physics, Particle physics, Top quark, High Energy Physics::Phenomenology, Hadron, General Physics and Astronomy, Supersymmetry, Bottom quark, Nuclear physics, Pair production, High Energy Physics::Experiment, Neutrino, Collider Detector at Fermilab, Lepton
Abstract

We have searched for pair production of the supersymmetric partner of the top quark (stop) in 107 pb(-1) of p (p) over bar collisions at roots=1.8 TeV collected by the Collider Detector at Fermilab (CDF). Each stop is assumed to decay into a lepton, bottom quark, and supersymmetric neutrino. Such a scenario would give rise to events with two leptons, two hadronic jets, and a substantial imbalance of transverse energy. No evidence of such a stop signal has been found. We exclude stop masses in the region (80less than or equal tom((t) over bar)less than or equal to135 GeV/c(2)) in the mass plane of stop versus sneutrino.

Published
2003

33. Erratum: Measurement of thett¯production cross section inpp¯collisions ats=1.8TeV[Phys. Rev. D64, 032002 (2001)]

Author

T. Affolder, H. Akimoto, A. Akopian, M. G. Albrow, P. Amaral, S. R. Amendolia, D. Amidei, K. Anikeev, J. Antos, G. Apollinari, T. Arisawa, T. Asakawa, W. Ashmanskas, F. Azfar, P. Azzi-Bacchetta, N. Bacchetta, M. W. Bailey, S. Bailey, P. de Barbaro, A. Barbaro-Galtieri, V. E. Barnes, B. A. Barnett, S. Baroiant, M. Barone, G. Bauer, F. Bedeschi, S. Belforte, W. H. Bell, G. Bellettini, J. Bellinger, D. Benjamin, J. Bensinger, A. Beretvas, J. P. Berge, J. Berryhill, B. Bevensee, A. Bhatti, M. Binkley, D. Bisello, M. Bishai, R. E. Blair, C. Blocker, K. Bloom, B. Blumenfeld, S. R. Blusk, A. Bocci, A. Bodek, W. Bokhari, G. Bolla, Y. Bonushkin, D. Bortoletto, J. Boudreau, A. Brandl, S. van den Brink, C. Bromberg, M. Brozovic, N. Bruner, E. Buckley-Geer, J. Budagov, H. S. Budd, K. Burkett, G. Busetto, A. Byon-Wagner, K. L. Byrum, P. Calafiura, M. Campbell, W. Carithers, J. Carlson, D. Carlsmith, W. Caskey, J. Cassada, A. Castro, D. Cauz, A. Cerri, A. W. Chan, P. S. Chang, P. T. Chang, J. Chapman, C. Chen, Y. C. Chen, M.-T. Cheng, M. Chertok, G. Chiarelli, I. Chirikov-Zorin, G. Chlachidze, F. Chlebana, L. Christofek, M. L. Chu, Y. S. Chung, C. I. Ciobanu, A. G. Clark, A. Connolly, J. Conway, M. Cordelli, J. Cranshaw, D. Cronin-Hennessy, R. Cropp, R. Culbertson, D. Dagenhart, S. D’Auria, F. DeJongh, S. Dell’Agnello, M. Dell’Orso, L. Demortier, M. Deninno, P. F. Derwent, T. Devlin, J. R. Dittmann, S. Donati, J. Done, T. Dorigo, N. Eddy, K. Einsweiler, J. E. Elias, E. Engels, R. Erbacher, D. Errede, S. Errede, Q. Fan, R. G. Feild, J. P. Fernandez, C. Ferretti, R. D. Field, I. Fiori, B. Flaugher, G. W. Foster, M. Franklin, J. Freeman, J. Friedman, Y. Fukui, I. Furic, S. Galeotti, M. Gallinaro, T. Gao, M. Garcia-Sciveres, A. F. Garfinkel, P. Gatti, C. Gay, D. W. Gerdes, P. Giannetti, P. Giromini, V. Glagolev, D. Glenzinski, M. Gold, J. Goldstein, A. Gordon, I. Gorelov, A. T. Goshaw, Y. Gotra, K. Goulianos, C. Green, G. Grim, P. Gris, L. Groer, C. Grosso-Pilcher, M. Guenther, G. Guillian, J. Guimaraes da Costa, R. M. Haas, C. Haber, E. Hafen, S. R. Hahn, C. Hall, T. Handa, R. Handler, W. Hao, F. Happacher, K. Hara, A. D. Hardman, R. M. Harris, F. Hartmann, K. Hatakeyama, J. Hauser, J. Heinrich, A. Heiss, M. Herndon, C. Hill, K. D. Hoffman, C. Holck, R. Hollebeek, L. Holloway, R. Hughes, J. Huston, J. Huth, H. Ikeda, J. Incandela, G. Introzzi, J. Iwai, Y. Iwata, E. James, M. Jones, U. Joshi, H. Kambara, T. Kamon, T. Kaneko, K. Karr, H. Kasha, Y. Kato, T. A. Keaffaber, K. Kelley, M. Kelly, R. D. Kennedy, R. Kephart, D. Khazins, T. Kikuchi, B. Kilminster, B. J. Kim, D. H. Kim, H. S. Kim, M. J. Kim, S. H. Kim, Y. K. Kim, M. Kirby, M. Kirk, L. Kirsch, S. Klimenko, P. Koehn, A. Köngeter, K. Kondo, J. Konigsberg, K. Kordas, A. Korn, A. Korytov, E. Kovacs, J. Kroll, M. Kruse, S. E. Kuhlmann, K. Kurino, T. Kuwabara, A. T. Laasanen, N. Lai, S. Lami, S. Lammel, J. I. Lamoureux, J. Lancaster, M. Lancaster, R. Lander, G. Latino, T. LeCompte, A. M. Lee, K. Lee, S. Leone, J. D. Lewis, M. Lindgren, J. B. Liu, Y. C. Liu, D. O. Litvintsev, O. Lobban, N. Lockyer, J. Loken, M. Loreti, D. Lucchesi, P. Lukens, S. Lusin, L. Lyons, J. Lys, R. Madrak, K. Maeshima, P. Maksimovic, L. Malferrari, M. Mangano, M. Mariotti, G. Martignon, A. Martin, J. A. J. Matthews, J. Mayer, P. Mazzanti, K. S. McFarland, P. McIntyre, E. McKigney, M. Menguzzato, A. Menzione, C. Mesropian, A. Meyer, T. Miao, R. Miller, J. S. Miller, H. Minato, S. Miscetti, M. Mishina, G. Mitselmakher, N. Moggi, E. Moore, R. Moore, Y. Morita, T. Moulik, M. Mulhearn, A. Mukherjee, T. Muller, A. Munar, P. Murat, S. Murgia, J. Nachtman, V. Nagaslaev, S. Nahn, H. Nakada, T. Nakaya, I. Nakano, C. Nelson, T. Nelson, C. Neu, D. Neuberger, C. Newman-Holmes, C.-Y. P. Ngan, H. Niu, L. Nodulman, A. Nomerotski, S. H. Oh, T. Ohmoto, T. Ohsugi, R. Oishi, T. Okusawa, J. Olsen, W. Orejudos, C. Pagliarone, F. Palmonari, R. Paoletti, V. Papadimitriou, S. P. Pappas, D. Partos, J. Patrick, G. Pauletta, M. Paulini, C. Paus, L. Pescara, T. J. Phillips, G. Piacentino, K. T. Pitts, A. Pompos, L. Pondrom, G. Pope, M. Popovic, F. Prokoshin, J. Proudfoot, F. Ptohos, O. Pukhov, G. Punzi, K. Ragan, A. Rakitine, D. Reher, A. Reichold, A. Ribon, W. Riegler, F. Rimondi, L. Ristori, M. Riveline, W. J. Robertson, A. Robinson, T. Rodrigo, S. Rolli, L. Rosenson, R. Roser, R. Rossin, A. Roy, A. Safonov, R. St. Denis, W. K. Sakumoto, D. Saltzberg, C. Sanchez, A. Sansoni, L. Santi, H. Sato, P. Savard, P. Schlabach, E. E. Schmidt, M. P. Schmidt, M. Schmitt, L. Scodellaro, A. Scott, A. Scribano, S. Segler, S. Seidel, Y. Seiya, A. Semenov, F. Semeria, T. Shah, M. D. Shapiro, P. F. Shepard, T. Shibayama, M. Shimojima, M. Shochet, A. Sidoti, J. Siegrist, A. Sill, P. Sinervo, P. Singh, A. J. Slaughter, K. Sliwa, C. Smith, F. D. Snider, A. Solodsky, J. Spalding, T. Speer, P. Sphicas, F. Spinella, M. Spiropulu, L. Spiegel, J. Steele, A. Stefanini, J. Strologas, F. Strumia, D. Stuart, K. Sumorok, T. Suzuki, T. Takano, R. Takashima, K. Takikawa, P. Tamburello, M. Tanaka, B. Tannenbaum, W. Taylor, M. Tecchio, R. Tesarek, P. K. Teng, K. Terashi, S. Tether, A. S. Thompson, R. Thurman-Keup, P. Tipton, S. Tkaczyk, D. Toback, K. Tollefson, A. Tollestrup, H. Toyoda, W. Trischuk, J. F. de Troconiz, J. Tseng, N. Turini, F. Ukegawa, T. Vaiciulis, J. Valls, S. Vejcik, G. Velev, R. Vidal, R. Vilar, I. Volobouev, D. Vucinic, R. G. Wagner, R. L. Wagner, J. Wahl, N. B. Wallace, A. M. Walsh, C. Wang, M. J. Wang, T. Watanabe, D. Waters, T. Watts, R. Webb, H. Wenzel, W. C. Wester, A. B. Wicklund, E. Wicklund, T. Wilkes, H. H. Williams, P. Wilson, B. L. Winer, D. Winn, S. Wolbers, D. Wolinski, J. Wolinski, S. Wolinski, S. Worm, X. Wu, J. Wyss, A. Yagil, W. Yao, G. P. Yeh, P. Yeh, J. Yoh, C. Yosef, T. Yoshida, I. Yu, S. Yu, Z. Yu, A. Zanetti, F. Zetti, and S. Zucchelli

Subjects
Physics, Nuclear physics, Nuclear and High Energy Physics, Cross section (physics), Meson, Bar (music), Hadron, Invariant mass, Elementary particle, Quarkonium, Boson
Published
2003

34. Charged-Particle Multiplicitypp¯Collisions ats=1.8TeV

Author

T. Affolder, H. Akimoto, A. Akopian, M. G. Albrow, P. Amaral, D. Amidei, K. Anikeev, J. Antos, G. Apollinari, T. Arisawa, A. Artikov, T. Asakawa, W. Ashmanskas, F. Azfar, P. Azzi-Bacchetta, N. Bacchetta, H. Bachacou, S. Bailey, P. de Barbaro, A. Barbaro-Galtieri, V. E. Barnes, B. A. Barnett, S. Baroiant, M. Barone, G. Bauer, F. Bedeschi, S. Belforte, W. H. Bell, G. Bellettini, J. Bellinger, D. Benjamin, J. Bensinger, A. Beretvas, J. P. Berge, J. Berryhill, A. Bhatti, M. Binkley, D. Bisello, M. Bishai, R. E. Blair, C. Blocker, K. Bloom, B. Blumenfeld, S. R. Blusk, A. Bocci, A. Bodek, W. Bokhari, G. Bolla, Y. Bonushkin, D. Bortoletto, J. Boudreau, A. Brandl, S. van Brink, C. Bromberg, M. Brozovic, E. Brubaker, N. Bruner, E. Buckley-Geer, J. Budagov, H. S. Budd, K. Burkett, G. Busetto, A. Byon-Wagner, K. L. Byrum, S. Cabrera, P. Calafiura, M. Campbell, W. Carithers, J. Carlson, D. Carlsmith, W. Caskey, A. Castro, D. Cauz, A. Cerri, A. W. Chan, P. S. Chang, P. T. Chang, J. Chapman, C. Chen, Y. C. Chen, M.-T. Cheng, M. Chertok, G. Chiarelli, I. Chirikov-Zorin, G. Chlachidze, F. Chlebana, L. Christofek, M. L. Chu, Y. S. Chung, C. I. Ciobanu, A. G. Clark, A. Connolly, J. Conway, M. Cordelli, J. Cranshaw, R. Cropp, R. Culbertson, D. Dagenhart, S. D'Auria, F. DeJongh, S. Dell'Agnello, M. Dell'Orso, L. Demortier, M. Deninno, P. F. Derwent, T. Devlin, J. R. Dittmann, A. Dominguez, S. Donati, J. Done, M. D'Onofrio, T. Dorigo, N. Eddy, K. Einsweiler, J. E. Elias, E. Engels, R. Erbacher, D. Errede, S. Errede, Q. Fan, R. G. Feild, J. P. Fernandez, C. Ferretti, R. D. Field, I. Fiori, B. Flaugher, G. W. Foster, M. Franklin, J. Freeman, J. Friedman, Y. Fukui, I. Furic, S. Galeotti, A. Gallas, M. Gallinaro, T. Gao, M. Garcia-Sciveres, A. F. Garfinkel, P. Gatti, C. Gay, D. W. Gerdes, P. Giannetti, P. Giromini, V. Glagolev, D. Glenzinski, M. Gold, J. Goldstein, I. Gorelov, A. T. Goshaw, Y. Gotra, K. Goulianos, C. Green, G. Grim, P. Gris, L. Groer, C. Grosso-Pilcher, M. Guenther, G. Guillian, J. Guimaraes de Costa, R. M. Haas, C. Haber, S. R. Hahn, C. Hall, T. Handa, R. Handler, W. Hao, F. Happacher, K. Hara, A. D. Hardman, R. M. Harris, F. Hartmann, K. Hatakeyama, J. Hauser, J. Heinrich, A. Heiss, M. Herndon, C. Hill, K. D. Hoffman, C. Holck, R. Hollebeek, L. Holloway, R. Hughes, J. Huston, J. Huth, H. Ikeda, J. Incandela, G. Introzzi, J. Iwai, Y. Iwata, E. James, M. Jones, U. Joshi, H. Kambara, T. Kamon, T. Kaneko, K. Karr, H. Kasha, Y. Kato, T. A. Keaffaber, K. Kelley, M. Kelly, R. D. Kennedy, R. Kephart, D. Khazins, T. Kikuchi, B. Kilminster, B. J. Kim, D. H. Kim, H. S. Kim, M. J. Kim, S. B. Kim, S. H. Kim, Y. K. Kim, M. Kirby, M. Kirk, L. Kirsch, S. Klimenko, P. Koehn, K. Kondo, J. Konigsberg, A. Korn, A. Korytov, E. Kovacs, J. Kroll, M. Kruse, S. E. Kuhlmann, K. Kurino, T. Kuwabara, A. T. Laasanen, N. Lai, S. Lami, S. Lammel, J. Lancaster, M. Lancaster, R. Lander, A. Lath, G. Latino, T. LeCompte, A. M. Lee, K. Lee, S. Leone, J. D. Lewis, M. Lindgren, T. M. Liss, J. B. Liu, Y. C. Liu, D. O. Litvintsev, O. Lobban, N. Lockyer, J. Loken, M. Loreti, D. Lucchesi, P. Lukens, S. Lusin, L. Lyons, J. Lys, R. Madrak, K. Maeshima, P. Maksimovic, L. Malferrari, M. Mangano, M. Mariotti, G. Martignon, A. Martin, J. A. J. Matthews, J. Mayer, P. Mazzanti, K. S. McFarland, P. McIntyre, E. McKigney, M. Menguzzato, A. Menzione, C. Mesropian, A. Meyer, T. Miao, R. Miller, J. S. Miller, H. Minato, S. Miscetti, M. Mishina, G. Mitselmakher, N. Moggi, E. Moore, R. Moore, Y. Morita, T. Moulik, M. Mulhearn, A. Mukherjee, T. Muller, A. Munar, P. Murat, S. Murgia, J. Nachtman, V. Nagaslaev, S. Nahn, H. Nakada, I. Nakano, C. Nelson, T. Nelson, C. Neu, D. Neuberger, C. Newman-Holmes, C.-Y. P. Ngan, H. Niu, L. Nodulman, A. Nomerotski, S. H. Oh, Y. D. Oh, T. Ohmoto, T. Ohsugi, R. Oishi, T. Okusawa, J. Olsen, W. Orejudos, C. Pagliarone, F. Palmonari, R. Paoletti, V. Papadimitriou, D. Partos, J. Patrick, G. Pauletta, M. Paulini, C. Paus, L. Pescara, T. J. Phillips, G. Piacentino, K. T. Pitts, R. Plunkett, A. Pompos, L. Pondrom, G. Pope, M. Popovic, F. Prokoshin, J. Proudfoot, F. Ptohos, O. Pukhov, G. Punzi, A. Rakitine, F. Ratnikov, D. Reher, A. Reichold, A. Ribon, W. Riegler, F. Rimondi, L. Ristori, M. Riveline, W. J. Robertson, A. Robinson, T. Rodrigo, S. Rolli, L. Rosenson, R. Roser, R. Rossin, A. Roy, A. Ruiz, A. Safonov, R. St. Denis, W. K. Sakumoto, D. Saltzberg, C. Sanchez, A. Sansoni, L. Santi, H. Sato, P. Savard, P. Schlabach, E. E. Schmidt, M. P. Schmidt, M. Schmitt, L. Scodellaro, A. Scott, A. Scribano, S. Segler, S. Seidel, Y. Seiya, A. Semenov, F. Semeria, T. Shah, M. D. Shapiro, P. F. Shepard, T. Shibayama, M. Shimojima, M. Shochet, A. Sidoti, J. Siegrist, A. Sill, P. Sinervo, P. Singh, A. J. Slaughter, K. Sliwa, C. Smith, F. D. Snider, A. Solodsky, J. Spalding, T. Speer, P. Sphicas, F. Spinella, M. Spiropulu, L. Spiegel, J. Steele, A. Stefanini, J. Strologas, F. Strumia, D. Stuart, K. Sumorok, T. Suzuki, T. Takano, R. Takashima, K. Takikawa, P. Tamburello, M. Tanaka, B. Tannenbaum, M. Tecchio, R. Tesarek, P. K. Teng, K. Terashi, S. Tether, A. S. Thompson, R. Thurman-Keup, P. Tipton, S. Tkaczyk, D. Toback, K. Tollefson, A. Tollestrup, D. Tonelli, H. Toyoda, W. Trischuk, J. F. de Troconiz, J. Tseng, N. Turini, F. Ukegawa, T. Vaiciulis, J. Valls, S. Vejcik, G. Velev, G. Veramendi, R. Vidal, I. Vila, R. Vilar, I. Volobouev, M. von der Mey, D. Vucinic, R. G. Wagner, R. L. Wagner, N. B. Wallace, Z. Wan, C. Wang, M. J. Wang, B. Ward, S. Waschke, T. Watanabe, D. Waters, T. Watts, R. Webb, H. Wenzel, W. C. Wester, A. B. Wicklund, E. Wicklund, T. Wilkes, H. H. Williams, P. Wilson, B. L. Winer, D. Winn, S. Wolbers, D. Wolinski, J. Wolinski, S. Wolinski, S. Worm, X. Wu, J. Wyss, W. Yao, G. P. Yeh, P. Yeh, J. Yoh, C. Yosef, T. Yoshida, I. Yu, S. Yu, Z. Yu, A. Zanetti, F. Zetti, and S. Zucchelli

Subjects
Quark, Physics, Particle physics, Astrophysics::High Energy Astrophysical Phenomena, High Energy Physics::Phenomenology, Hadron, Tevatron, General Physics and Astronomy, Parton, Multiplicity (mathematics), Charged particle, Gluon, High Energy Physics::Experiment, Nuclear Experiment, Collider Detector at Fermilab
Abstract

We report on a measurement of the mean charged-particle multiplicity of jets in dijet events with dijet masses in the range 80-630 GeV/c{sup 2}, produced at the Tevatron in p{bar p} collisions with sqrt[s] = 1.8 TeV and recorded by the Collider Detector at Fermilab. The data are fit to perturbative-QCD calculations carried out in the framework of the modified leading log approximation and the hypothesis of local parton-hadron duality. The fit yields values for two parameters in that framework: the ratio of parton multiplicities in gluon and quark jets, r{identical_to}N{sub partons}{sup g-jet}/N{sub partons}{sup q-jet} = 1.7{+-}0.3, and the ratio of the number of charged hadrons to the number of partons in a jet, K{sub LPHD}{sup charged}{identical_to}N{sub hadrons}{sup charged}/N{sub partons} = 0.57{+-}0.11.

Published
2001

35. Tests of enhanced leading order QCD inWboson plus jets events from 1.8 TeVp¯pcollisions

Author

Q. Fan, Umesh Joshi, J. Cooper, A. Scribano, A. Tollestrup, S. H. Kim, Y. Iwata, G. Signorelli, Daniela Bortoletto, M. Dell'Orso, Sally Seidel, P. Schlabach, F. Strumia, J. Cassada, J. P. Berge, J. Wyss, Andrea Sansoni, Ivan-Kresimir Furic, T. L. Watts, T. Devlin, G. Chiarelli, L. Christofek, M. M. Deninno, Jay Dittmann, S. Donati, R. Takashima, D. Cauz, Guenakh Mitselmakher, Hiroto Kambara, A. G. Clark, P. Gatti, Michele Gallinaro, C. R. Hall, Mark Kruse, Paul Tipton, R. Kephart, B. Bevensee, G. W. Foster, T. Suzuki, W. Ashmanskas, Louis Lyons, P. N. Singh, Christoph Paus, J. Carlson, Th. Müller, S. R. Amendolia, K. Sliwa, S. Klimenko, M. Mulhearn, W. Riegler, N. Moggi, Frank Hartmann, Alan Sill, Hajin Kim, M. Mishina, A. Pompos, M. Binkley, M. G. Albrow, R. Cropp, Kenneth Bloom, M. Tecchio, A. Robinson, S. C. van den Brink, Stephan Lammel, S. Worm, L. Rosenson, D. Amidei, A. T. Goshaw, G. Velev, Y. Gotra, Fumihiko Ukegawa, C. H. Wang, M. Lindgren, B. Tannenbaum, J. Valls, Luca Scodellaro, K. L. Byrum, C. Smith, S. Bailey, M. Brozovic, J. P. Fernandez, S. Errede, F. Spinella, H. Sato, L. E. Kirsch, D. Dagenhart, A. B. Wicklund, C. Pagliarone, S. Tkaczyk, David Stuart, Thomas LeCompte, B. Flaugher, Michael Schmitt, J. Incandela, D. Wolinski, K. Kelley, S. Leone, A. Byon-Wagner, Tetsuo Arisawa, C. Holck, P. Giromini, Anna Zanetti, H. Kasha, T. Kikuchi, N. B. Wallace, R. L. Wagner, Minu Kim, N. Eddy, P. Yeh, Joel Goldstein, R. G. Feild, Y. C. Chen, R. J. Hollebeek, K. Takikawa, W. H. Bell, S. Galeotti, R. D. Field, M. L. Chu, Mosè Mariotti, E. E. Schmidt, L. Holloway, H. S. Budd, R. J. Miller, J. I. Lamoureux, K. Goulianos, P. Gris, S. Lusin, F. Happacher, Lawrence Nodulman, P. T. Chang, G. P. Yeh, Andrew Beretvas, J. Conway, E. James, G. Pope, R. Oishi, Jane Nachtman, Dario Bisello, A. Bhatti, Tony Liss, S. Wolinski, A. Mukherjee, T. Kuwabara, T. Ohsugi, M. J. Shochet, E. Hafen, K. D. Hoffman, H. Toyoda, J. Patrick, P. Sphicas, Virgil E Barnes, J. Tseng, A. Bodek, R. D. Kennedy, J. Iwai, Paolo Calafiura, C. Yosef, J. Mayer, Andrea Bocci, P. de Barbaro, F. Ptohos, W. J. Robertson, T. Kaneko, Teresa Rodrigo, Alessandro Cerri, K. Lee, T. J. Phillips, O. Pukhov, A. Connolly, W. K. Sakumoto, K. T. Pitts, Tommaso Dorigo, J. Wahl, T. Handa, Richard Dante St Denis, K. Ragan, Yanwen Liu, J. Wolinski, J. Siegrist, P. S. Chang, T. Watanabe, Wendy Taylor, T. Asakawa, M. Shimojima, J. A.J. Matthews, Y. Morita, R. Vilar, M. Gold, M. W. Bailey, H. Wenzel, P. K. Teng, C. Grosso-Pilcher, James Bensinger, A. Menzione, W. Bokhari, N. Lai, Kazuhiko Hara, J. Boudreau, Matthew Jones, F. Zetti, G. Punzi, E. Engels, A. Nomerotski, M. Campbell, C. Green, Robert M Harris, Roger Moore, F. Azfar, I.E. Chirikov-Zorin, D. Waters, P. Giannetti, Fedor Prokoshin, James D. Olsen, M. H. Kirby, Yasuo Fukui, R. Madrak, R. Vidal, J. Spalding, T. Okusawa, P. Mazzanti, A. Korn, A. Meyer, G. Latino, D. Theriot, M. Barone, M. Kelly, E. Kovacs, T. Ohmoto, M. J. Wang, T. Miao, C. Nelson, F. Palmonari, L. Malferrari, R. Handler, Y. S. Chung, H. Niu, N. Bruner, R. M. Haas, Masaaki Tanaka, W. C. Wester, Manfred Paulini, P. F. Shepard, S. H. Oh, J. Done, J. Huston, Y. Bonushkin, R. Thurman-Keup, Andrea Castro, David Saltzberg, Cyp Ngan, Aw Chan, D. Khazins, K. Karr, S. Dell'Agnello, Duncan Carlsmith, Xin Wu, S. Nahn, H. Nakada, Saverio D'Auria, S. Vejcik, Christina Mesropian, Yongsun Kim, T. Takano, J. G. Loken, N. S. Lockyer, E. Moore, Itsuo Nakano, L. Santi, L. Groer, Roberto Rossin, Alan Garfinkel, Maxwell Chertok, P. McIntyre, Douglas Benjamin, A. Gordon, A. J. Martin, Joe Kroll, C. Haber, K. S. McFarland, R. S. Guo, P. F. Derwent, S. Tether, M. Lancaster, M. Bishai, K. Tollefson, Z. Yu, L. Pondrom, E. Wicklund, C. Ferretti, Marjorie Shapiro, A. J. Slaughter, E. Buckley-Geer, Riccardo Paoletti, P. Sinervo, D. Lucchesi, J. E. Elias, T. Shibayama, M. Loreti, G. Piacentino, K. Terashi, Nicola Turini, A. T. Laasanen, S. Miscetti, J. Lys, S. Blusk, Jochen Jens Heinrich, R. Roser, G. Bellettini, G. Martignon, J.I. Friedman, C. I. Ciobanu, Shin-Shan Yu, Timothy Knight Nelson, T. Affolder, A. Ribon, J. Steele, W. Orejudos, A. Barbaro-Galtieri, Beom Jun Kim, Kenichi Hatakeyama, W. Carithers, S. Murgia, Frank Chlebana, Pierre Savard, M. Franklin, D. Vucinic, F. Semeria, A. Akopian, Andrey Korytov, T. A. Keaffaber, M. Mangano, J. Berryhill, Maurice Garcia-Sciveres, J. C. Freeman, A. Reichold, V. Glagolev, Jay Hauser, K. Kurino, I. Fiori, A. W. Scott, D. Partos, T. Yoshida, A. Köngeter, H. Minato, M. Guenther, L. Demortier, James Proudfoot, Tong Gao, A. M. Walsh, J. D. Lewis, J. N. Bellinger, Daniel P Cronin-Hennessy, M. Kirk, S. Segler, Stefano Belforte, Kevin Einsweiler, P. Koehn, J. S. Miller, Kevin Burkett, A. M. Lee, Henrik Jeldtoft Jensen, Kostantinos Kordas, Maria Spiropulu, Avraham Yagil, R. E. Hughes, Matthew Herndon, L. Ristori, W. Hao, B. A. Barnett, Chunhui Chen, Petar Maksimovic, Giorgio Apollinari, R. Culbertson, P. Murat, D. Winn, A. Brandl, W. Trischuk, E. McKigney, S. Rolli, Benjamin Kilminster, Teruki Kamon, Nicola Bacchetta, F. Bedeschi, Barry Blumenfeld, Craig Blocker, John Huth, Kaori Maeshima, A. Safonov, J. W. Chapman, G. Bauer, A. D. Hardman, T. Vaiciulis, F. D. Snider, Leonard Spiegel, P. Wilson, J. Cranshaw, M. Menguzzato, H. H. Williams, M. P. Schmidt, G. Introzzi, A. Stefanini, S. Wolbers, K. Kondo, D. W. Gerdes, A. Rakitine, S. E. Kuhlmann, P. Nicolaidi, T. Nakaya, H. Akimoto, Gino Bolla, G. Chlachidze, A. Munar, G. Pauletta, S. R. Hahn, J. Yoh, D. Reher, P. Azzi-Bacchetta, J. Budagov, C. Bromberg, A. Semenov, J. Antos, Konstanty Sumorok, I. Yu, P. Lukens, V. Papadimitriou, Daijin Kim, Y. Seiya, M. Popovic, A. S. Thompson, A. Heiss, M. Riveline, L. Pescara, J. Strologas, F. DeJongh, W-M. Yao, M. Cordelli, G. Busetto, Brian L Winer, R. G. Wagner, S. P. Pappas, J. B. Liu, P. Amaral, S. Zucchelli, R. E. Blair, F. Rimondi, S. Lami, T. Shah, K. Anikeev, D. Errede, Y. Kato, D. Neuberger, G. Guillian, J. Guimaraes Da Costa, Catherine Newman-Holmes, I. V. Gorelov, T. Speer, Jacobo Konigsberg, M. T. Cheng, A. Solodsky, J. F. de Troconiz, P. Tamburello, Hiroshi Ikeda, R. C. Webb, and Igor Volobouev

Subjects
Physics, Quantum chromodynamics, Nuclear and High Energy Physics, Particle physics, Astrophysics::High Energy Astrophysical Phenomena, High Energy Physics::Phenomenology, Hadron, Tevatron, Parton, Gluon, Nuclear physics, Pair production, High Energy Physics::Experiment, Fermilab, Nuclear Experiment, Boson
Abstract

We present a study of events with W bosons and hadronic jets produced in p{anti p} collisions at a center of mass energy of 1.8 TeV. The data consist of 51400 W {yields} e {nu} decay candidates from 108 pb{sup -1} of integrated luminosity collected using the CDF detector at the Fermilab Tevatron collider. Cross sections and jet production properties have been measured for W + {>=} 1 to {>=} 4 jet events. The data compare well to predictions of leading-order QCD matrix element calculations with added gluon radiation and simulated parton fragmentation.

Published
2001

36. Measurement of theB0B0oscillation frequency usingl−D*+pairs and lepton flavor tags

Author

Andrea Sansoni, S. Donati, P. Gatti, W. Ashmanskas, W. Carithers, S. Murgia, J. Guimaraes da Costa, Andrew Beretvas, G. Velev, M. Garcia-Sciveres, B. A. Barnett, Giorgio Apollinari, Teruki Kamon, S. Truitt, Craig Blocker, Gino Bolla, M. Cordelli, G. Busetto, Brian L Winer, R. G. Wagner, J. Berryhill, H. Sato, R. J. Miller, A. Mukherjee, Kaori Maeshima, J. Lys, C. Mesropian, S. P. Pappas, Stefano Belforte, T. Kuwabara, Andrea Bocci, Tommaso Dorigo, A. Semenov, P. Wilson, M. Menguzzato, J. B. Liu, Henrik Jeldtoft Jensen, C. Pagliarone, S. Galeotti, F. Palmonari, R. Thurman-Keup, Cyp Ngan, R. Roser, J.I. Friedman, Sally Seidel, H. Grassmann, J. Wolinski, P. Amaral, R. Vilar, L. Ristori, L. Malferrari, C. H. Wang, S. Nahn, A. Nomerotski, Jay Hauser, Y. Seiya, W. Trischuk, Kenichi Hatakeyama, M. Franklin, Maxwell Chertok, J. C. Freeman, I. Vologouev, E. Moore, Nicola Bacchetta, A. Köngeter, J. Wyss, F. Zetti, S. E. Kuhlmann, P. Nicolaidi, G. Chlachidze, G. Chiarelli, S. Zucchelli, R. E. Blair, F. Rimondi, C. Ferretti, Tong Gao, F. Bedeschi, N. Brunner, S. Bailey, D. Lucchesi, M. M. Deninno, T. Affolder, A. Gordon, R. Cropp, H. Minato, K. Ragan, Matthew Jones, P. Sphicas, Virgil E Barnes, I.E. Chirikov-Zorin, J. Yoh, C. I. Ciobanu, M. Mishina, Y. Gotra, Marjorie Shapiro, A. Barbaro-Galtieri, S. Cihangir, B. Flaugher, D. Vucinic, F. Semeria, A. J. Martin, L. Pondrom, E. Wicklund, M. Tecchio, J. E. Elias, T. A. Keaffaber, B. J. Kim, Michael Schmitt, A. J. Slaughter, James D. Olsen, Jay Dittmann, E. Buckley-Geer, J. Spalding, D. Cauz, Masaaki Tanaka, T. Ohsugi, M. J. Wang, T. Miao, Xin Wu, T. Kaneko, P. S. Chang, Stephan Lammel, Avraham Yagil, M. J. Shochet, F. Spinella, J. Incandela, J. Strologas, K. Kurino, Riccardo Paoletti, S. Lami, T. Shah, T. L. Watts, G. Piacentino, E. Cocca, W. C. Wester, J. Conway, E. McKigney, Manfred Paulini, H. Nakada, P. Sinervo, Fumihiko Ukegawa, A. B. Wicklund, J. D. Lewis, M. Kirk, N. S. Lockyer, Roberto Rossin, A. Menzione, M. Gold, J. N. Bellinger, Michele Gallinaro, G. Pope, I. Fiori, A. W. Scott, D. Partos, D. P. Benjamin, R. Madrak, D. Errede, T. Kikuchi, P. Lukens, J. Steele, P. Yeh, R. Kephart, S. Tkaczyk, David Stuart, S. Miscetti, Andrey Korytov, R. G. Feild, E. E. Schmidt, Yongsun Kim, K. D. Hoffman, Kevin Einsweiler, Daniel P Cronin-Hennessy, Joe Kroll, P. K. Teng, P. Koehn, Kostantinos Kordas, S. Bertolucci, V. Papadimitriou, W-M. Yao, G. P. Yeh, E. Kovacs, Marina Cobal, J. Carlson, Frank Hartmann, Alan Sill, T. Ohmoto, T. Nakaya, Y. Kato, D. Neuberger, G. Guillian, A. G. Clark, E. Meschi, Leonard Spiegel, Tony Liss, C. Nelson, S. C. van den Brink, G. Bellettini, G. Martignon, J. P. Berge, Teresa Rodrigo, Tomoko Yoshida, H. Toyoda, Y. C. Chen, L. Santi, R. K. Plunkett, C. Green, Y. Bonushkin, R. Takashima, R. E. Hughes, J. S. Miller, Chunhui Chen, Petar Maksimovic, H. Akimoto, P. Murat, A. Heiss, V. V. Glagolev, J. Valls, D. Wolinski, Catherine Newman-Holmes, C. R. Hall, A. Perazzo, T. J. Phillips, L. Christofek, Robert M Harris, T. Handa, Y. Morita, Jane Nachtman, L. Nodulman, A. Connolly, T. Asakawa, T. Speer, K. S. McFarland, Kevin Burkett, S. Tether, Y. Iwata, E. S. Hafen, S. R. Hahn, Mark Kruse, D. Knoblauch, D. Winn, R. L. Wagner, Paul Tipton, M. Mangano, T. Suzuki, F. DeJongh, L. Pescara, K. Goulianos, M. P. Schmidt, K. Kelley, S. Leone, H. S. Budd, G. Signorelli, Daniela Bortoletto, A. Pompos, M. Lindgren, Hyun-Chul Kim, Q. Fan, G. Bauer, N. Moggi, A. D. Hardman, K. Tollefson, Wendy Taylor, J. A.J. Matthews, B. Tannenbaum, A. Tollestrup, Thomas LeCompte, F. D. Snider, G. Punzi, B. Bevensee, S. Worm, J. Proudfoot, R. Demina, A. Parri, F. Ptohos, Jacobo Konigsberg, J. Antos, R. Oishi, P. Azzi-Bacchetta, A. T. Goshaw, R. Vidai, K. T. Pitts, A. M. Walsh, W. J. Robertson, E. Engels, Ciro Bigongiari, M. Musy, T. Devlin, M. Dell'Orso, S. Wolbers, M. T. Cheng, P. de Barbaro, D. W. Gerdes, C. Smith, C. Holck, Roger Moore, Andrea Castro, Konstanty Sumorok, E. James, M. Barone, M. Kelly, T. Watanabe, C. Bromberg, L. Demortier, Frank Chlebana, A. M. Lee, A. Robinson, K. Kondo, L. Holloway, W. Bokhari, A. Caner, H. Wenzel, A. Solodsky, J. Patrick, A. Akopian, P. N. Singh, D. Khazins, M. Campbell, S. Errede, W. Hao, A. Munar, M. W. Bailey, A. Brandl, K. Takikawa, G. Pauletta, P. Giannetti, M. Incagli, K. Karr, T. Shibayama, M. Loreti, L. Rosenson, R. Handler, John Huth, M. Guenther, I. Yu, G. Latino, D. Theriot, H. H. Williams, S. Dell'Agnello, W. Erdmann, L. E. Kirsch, K. Terashi, G. Introzzi, A. Stefanini, M. Atac, Duncan Carlsmith, A. Byon-Wagner, Tetsuo Arisawa, J. F. de Troconiz, Nicola Turini, A. T. Laasanen, N. Eddy, Luca Scodellaro, S. Segler, K. L. Byrum, R. J. Hollebeek, S. Blusk, Jochen Jens Heinrich, P. Giromini, Hiroshi Ikeda, D. Reher, J. Budagov, Anna Zanetti, H. Kasha, J. I. Lamoureux, Maria Spiropulu, B. Hinrichsen, R. C. Webb, R. D. Kennedy, D. Amidei, S. Rolli, J. Siegrist, Shin-Shan Yu, A. Ribon, Pierre Savard, S. Gadomski, C. Miao, M. Shimojima, A. Scribano, M. Binkley, M. G. Albrow, Hiroto Kambara, Kenneth Bloom, H. Niu, P. F. Shepard, S. H. Oh, Itsuo Nakano, J. R. Bensinger, L. Groer, Alan Garfinkel, P. McIntyre, M. L. Chu, Mosè Mariotti, S. Vejcik, T. Takano, W. K. Sakumoto, J. W. Chapman, Luca Stanco, S. Geer, C. Haber, C. Grosso-Pilcher, D. Dagenhart, J. Tseng, J. Boudreau, David Saltzberg, R. S. Guo, P. F. Derwent, M. Lancaster, J. Wahl, Yanwen Liu, Joel Goldstein, S. Lusin, F. Happacher, P. T. Chang, Dario Bisello, A. Bhatti, P. Schlabach, J. Cassada, A. Cerri, G. W. Foster, N. Lai, Kazuhiko Hara, Fedor Prokoshin, Yasuo Fukui, T. Okusawa, P. Mazzanti, J. Done, J. Huston, Umesh Joshi, J. Cooper, S. H. Kim, D. Costanzo, Th. Müller, S. R. Amendolia, K. Sliwa, S. Klimenko, R. Culbertson, N. B. Wallace, A. Bodek, J. Iwai, C. Yosef, and F. Strumia

Subjects
Semileptonic decay, Physics, Nuclear and High Energy Physics, Particle physics, Meson, High Energy Physics::Phenomenology, Hadron, Elementary particle, Nuclear physics, Particle decay, High Energy Physics::Experiment, Production (computer science), Lepton, Sign (mathematics)
Abstract

The oscillation frequency {delta}m{sub d} of B{sup 0}B(bar sign){sup 0} mixing is measured using the partially reconstructed semileptonic decay B(bar sign){sup 0}{yields}l{sup -}{nu}(bar sign)D{sup *+}X. The data sample was collected with the CDF detector at the Fermilab Tevatron collider during 1992-1995 by triggering on the existence of two lepton candidates in an event, and corresponds to about 110 pb{sup -1} of p(bar sign)p collisions at {radical}(s)=1.8 TeV. We estimate the proper decay time of the B(bar sign){sup 0} meson from the measured decay length and reconstructed momentum of the l{sup -}D{sup *+} system. The charge of the lepton in the final state identifies the flavor of the B(bar sign){sup 0} meson at its decay. The second lepton in the event is used to infer the flavor of the B(bar sign){sup 0} meson at production. We measure the oscillation frequency to be {delta}m{sub d}=0.516{+-}0.099{sub -0.035}{sup +} {sup 0.029} ps{sup -1}, where the first uncertainty is statistical and the second is systematic. (c) 1999 The American Physical Society.

Published
1999

37. Measurement ofbquark fragmentation fractions in the production of strange and lightBmesons inpp¯collisions ats=1.8TeV

Author

F. Abe, H. Akimoto, A. Akopian, M. G. Albrow, S. R. Amendolia, D. Amidei, J. Antos, S. Aota, G. Apollinari, T. Arisawa, T. Asakawa, W. Ashmanskas, M. Atac, P. Azzi-Bacchetta, N. Bacchetta, S. Bagdasarov, M. W. Bailey, P. de Barbaro, A. Barbaro-Galtieri, V. E. Barnes, B. A. Barnett, M. Barone, G. Bauer, T. Baumann, F. Bedeschi, S. Behrends, S. Belforte, G. Bellettini, J. Bellinger, D. Benjamin, J. Bensinger, A. Beretvas, J. P. Berge, J. Berryhill, S. Bertolucci, S. Bettelli, B. Bevensee, A. Bhatti, K. Biery, C. Bigongiari, M. Binkley, D. Bisello, R. E. Blair, C. Blocker, K. Bloom, S. Blusk, A. Bodek, W. Bokhari, G. Bolla, Y. Bonushkin, D. Bortoletto, J. Boudreau, A. Brandl, L. Breccia, C. Bromberg, N. Bruner, R. Brunetti, E. Buckley-Geer, H. S. Budd, K. Burkett, G. Busetto, A. Byon-Wagner, K. L. Byrum, M. Campbell, A. Caner, W. Carithers, D. Carlsmith, J. Cassada, A. Castro, D. Cauz, A. Cerri, P. S. Chang, P. T. Chang, H. Y. Chao, J. Chapman, M.-T. Cheng, M. Chertok, G. Chiarelli, C. N. Chiou, F. Chlebana, L. Christofek, M. L. Chu, S. Cihangir, A. G. Clark, M. Cobal, E. Cocca, M. Contreras, J. Conway, J. Cooper, M. Cordelli, D. Costanzo, C. Couyoumtzelis, D. Cronin-Hennessy, R. Cropp, R. Culbertson, D. Dagenhart, T. Daniels, F. DeJongh, S. Dell’Agnello, M. Dell’Orso, R. Demina, L. Demortier, M. Deninno, P. F. Derwent, T. Devlin, J. R. Dittmann, S. Donati, J. Done, T. Dorigo, N. Eddy, K. Einsweiler, J. E. Elias, R. Ely, E. Engels, W. Erdmann, D. Errede, S. Errede, Q. Fan, R. G. Feild, Z. Feng, C. Ferretti, I. Fiori, B. Flaugher, G. W. Foster, M. Franklin, J. Freeman, J. Friedman, Y. Fukui, S. Gadomski, S. Galeotti, M. Gallinaro, O. Ganel, M. Garcia-Sciveres, A. F. Garfinkel, C. Gay, S. Geer, D. W. Gerdes, P. Giannetti, N. Giokaris, P. Giromini, G. Giusti, M. Gold, A. Gordon, A. T. Goshaw, Y. Gotra, K. Goulianos, H. Grassmann, C. Green, L. Groer, C. Grosso-Pilcher, G. Guillian, J. Guimaraes da Costa, R. S. Guo, C. Haber, E. Hafen, S. R. Hahn, R. Hamilton, T. Handa, R. Handler, W. Hao, F. Happacher, K. Hara, A. D. Hardman, R. M. Harris, F. Hartmann, J. Hauser, E. Hayashi, J. Heinrich, A. Heiss, B. Hinrichsen, K. D. Hoffman, C. Holck, R. Hollebeek, L. Holloway, Z. Huang, B. T. Huffman, R. Hughes, J. Huston, J. Huth, H. Ikeda, M. Incagli, J. Incandela, G. Introzzi, J. Iwai, Y. Iwata, E. James, H. Jensen, U. Joshi, E. Kajfasz, H. Kambara, T. Kamon, T. Kaneko, K. Karr, H. Kasha, Y. Kato, T. A. Keaffaber, K. Kelley, M. Kelly, R. D. Kennedy, R. Kephart, D. Kestenbaum, D. Khazins, T. Kikuchi, M. Kirk, B. J. Kim, H. S. Kim, S. H. Kim, Y. K. Kim, L. Kirsch, S. Klimenko, D. Knoblauch, P. Koehn, A. Köngeter, K. Kondo, J. Konigsberg, K. Kordas, A. Korytov, E. Kovacs, W. Kowald, J. Kroll, M. Kruse, S. E. Kuhlmann, E. Kuns, K. Kurino, T. Kuwabara, A. T. Laasanen, S. Lami, S. Lammel, J. I. Lamoureux, M. Lancaster, M. Lanzoni, G. Latino, T. LeCompte, S. Leone, J. D. Lewis, M. Lindgren, T. M. Liss, J. B. Liu, Y. C. Liu, N. Lockyer, O. Long, M. Loreti, D. Lucchesi, P. Lukens, S. Lusin, J. Lys, K. Maeshima, P. Maksimovic, M. Mangano, M. Mariotti, J. P. Marriner, G. Martignon, A. Martin, J. A. J. Matthews, P. Mazzanti, K. McFarland, P. McIntyre, P. Melese, M. Menguzzato, A. Menzione, E. Meschi, S. Metzler, C. Miao, T. Miao, G. Michail, R. Miller, H. Minato, S. Miscetti, M. Mishina, S. Miyashita, N. Moggi, E. Moore, Y. Morita, A. Mukherjee, T. Muller, A. Munar, P. Murat, S. Murgia, M. Musy, H. Nakada, T. Nakaya, I. Nakano, C. Nelson, D. Neuberger, C. Newman-Holmes, C.-Y. P. Ngan, H. Niu, L. Nodulman, A. Nomerotski, S. H. Oh, T. Ohmoto, T. Ohsugi, R. Oishi, M. Okabe, T. Okusawa, J. Olsen, C. Pagliarone, R. Paoletti, V. Papadimitriou, S. P. Pappas, N. Parashar, A. Parri, D. Partos, J. Patrick, G. Pauletta, M. Paulini, A. Perazzo, L. Pescara, M. D. Peters, T. J. Phillips, G. Piacentino, M. Pillai, K. T. Pitts, R. Plunkett, A. Pompos, L. Pondrom, J. Proudfoot, F. Ptohos, G. Punzi, K. Ragan, D. Reher, A. Ribon, F. Rimondi, L. Ristori, W. J. Robertson, A. Robinson, T. Rodrigo, S. Rolli, L. Rosenson, R. Roser, T. Saab, W. K. Sakumoto, D. Saltzberg, A. Sansoni, L. Santi, H. Sato, P. Schlabach, E. E. Schmidt, M. P. Schmidt, A. Scott, A. Scribano, S. Segler, S. Seidel, Y. Seiya, F. Semeria, T. Shah, M. D. Shapiro, N. M. Shaw, P. F. Shepard, T. Shibayama, M. Shimojima, M. Shochet, J. Siegrist, A. Sill, P. Sinervo, P. Singh, K. Sliwa, C. Smith, F. D. Snider, J. Spalding, T. Speer, P. Sphicas, F. Spinella, M. Spiropulu, L. Spiegel, L. Stanco, J. Steele, A. Stefanini, R. Ströhmer, J. Strologas, F. Strumia, D. Stuart, K. Sumorok, J. Suzuki, T. Suzuki, T. Takahashi, T. Takano, R. Takashima, K. Takikawa, M. Tanaka, B. Tannenbaum, F. Tartarelli, W. Taylor, M. Tecchio, P. K. Teng, Y. Teramoto, K. Terashi, S. Tether, D. Theriot, T. L. Thomas, R. Thurman-Keup, M. Timko, P. Tipton, A. Titov, S. Tkaczyk, D. Toback, K. Tollefson, A. Tollestrup, H. Toyoda, W. Trischuk, J. F. de Troconiz, S. Truitt, J. Tseng, N. Turini, T. Uchida, F. Ukegawa, J. Valls, S. C. van den Brink, S. Vejcik, G. Velev, R. Vidal, R. Vilar, I. Vologouev, D. Vucinic, R. G. Wagner, R. L. Wagner, J. Wahl, N. B. Wallace, A. M. Walsh, C. Wang, C. H. Wang, M. J. Wang, A. Warburton, T. Watanabe, T. Watts, R. Webb, C. Wei, H. Wenzel, W. C. Wester, A. B. Wicklund, E. Wicklund, R. Wilkinson, H. H. Williams, P. Wilson, B. L. Winer, D. Winn, D. Wolinski, J. Wolinski, S. Worm, X. Wu, J. Wyss, A. Yagil, W. Yao, K. Yasuoka, G. P. Yeh, P. Yeh, J. Yoh, C. Yosef, T. Yoshida, I. Yu, A. Zanetti, F. Zetti, and S. Zucchelli

Subjects
Physics, Nuclear and High Energy Physics, Particle physics, Muon, Meson production, Meson, Nuclear Theory, High Energy Physics::Phenomenology, Hadron, Bottom quark, Nuclear physics, Fragmentation (mass spectrometry), High Energy Physics::Experiment, B meson, Nuclear Experiment, Collider Detector at Fermilab
Abstract

A new technique to measure the ratio of b quark fragmentation fractions in $p\overline{p}$ collisions is described. Using a ${70\ensuremath{-}\mathrm{p}\mathrm{b}}^{\mathrm{\ensuremath{-}}1}$ sample of low-mass dimuon trigger data recorded with the Collider Detector at Fermilab, we identify B mesons by observing the double semileptonic decays $\stackrel{\ensuremath{\rightarrow}}{b}c\ensuremath{\mu}X$ with $\stackrel{\ensuremath{\rightarrow}}{c}s\ensuremath{\mu}X.$ By counting the numbers of ${K}^{*}{(892)}^{0},$ ${K}^{*}{(892)}^{+},$ and \ensuremath{\varphi}(1020) mesons produced in association with these muon pairs, we measure the ratio of strange to nonstrange B meson production to be ${f}_{s}{/(f}_{u}{+f}_{d})=[21.0\ifmmode\pm\else\textpm\fi{}3.6(\mathrm{stat}{)}_{\ensuremath{-}3.0}^{+3.8}(\mathrm{syst})]%.$ This measurement is the most precise available from hadron collisions to date. Limits on the branching fractions of semileptonic charm meson decays with ${K}_{1}(1270),$ ${K}_{1}^{*}(1410),$ and ${K}_{2}^{*}(1430)$ mesons in the final state are also obtained.

Published
1999

38. Measurement ofB0−B0flavor oscillations using jet-charge and lepton flavor tagging inpp¯collisions ats=1.8 TeV

Author

F. Abe, H. Akimoto, A. Akopian, M. G. Albrow, S. R. Amendolia, D. Amidei, J. Antos, S. Aota, G. Apollinari, T. Arisawa, T. Asakawa, W. Ashmanskas, M. Atac, P. Azzi-Bacchetta, N. Bacchetta, S. Bagdasarov, M. W. Bailey, P. de Barbaro, A. Barbaro-Galtieri, V. E. Barnes, B. A. Barnett, M. Barone, G. Bauer, T. Baumann, F. Bedeschi, S. Behrends, S. Belforte, G. Bellettini, J. Bellinger, D. Benjamin, J. Bensinger, A. Beretvas, J. P. Berge, J. Berryhill, S. Bertolucci, S. Bettelli, B. Bevensee, A. Bhatti, K. Biery, C. Bigongiari, M. Binkley, D. Bisello, R. E. Blair, C. Blocker, K. Bloom, S. Blusk, A. Bodek, W. Bokhari, G. Bolla, Y. Bonushkin, D. Bortoletto, J. Boudreau, A. Brandl, L. Breccia, C. Bromberg, N. Bruner, R. Brunetti, E. Buckley-Geer, H. S. Budd, K. Burkett, G. Busetto, A. Byon-Wagner, K. L. Byrum, M. Campbell, A. Caner, W. Carithers, D. Carlsmith, J. Cassada, A. Castro, D. Cauz, A. Cerri, P. S. Chang, P. T. Chang, H. Y. Chao, J. Chapman, M.-T. Cheng, M. Chertok, G. Chiarelli, C. N. Chiou, F. Chlebana, L. Christofek, M. L. Chu, S. Cihangir, A. G. Clark, M. Cobal, E. Cocca, M. Contreras, J. Conway, J. Cooper, M. Cordelli, D. Costanzo, C. Couyoumtzelis, D. Cronin-Hennessy, R. Cropp, R. Culbertson, D. Dagenhart, T. Daniels, F. DeJongh, S. Dell’Agnello, M. Dell’Orso, R. Demina, L. Demortier, M. Deninno, P. F. Derwent, T. Devlin, J. R. Dittmann, S. Donati, J. Done, T. Dorigo, N. Eddy, K. Einsweiler, J. E. Elias, R. Ely, E. Engels, W. Erdmann, D. Errede, S. Errede, Q. Fan, R. G. Feild, Z. Feng, C. Ferretti, I. Fiori, B. Flaugher, G. W. Foster, M. Franklin, J. Freeman, J. Friedman, Y. Fukui, S. Gadomski, S. Galeotti, M. Gallinaro, O. Ganel, M. Garcia-Sciveres, A. F. Garfinkel, C. Gay, S. Geer, D. W. Gerdes, P. Giannetti, N. Giokaris, P. Giromini, G. Giusti, M. Gold, A. Gordon, A. T. Goshaw, Y. Gotra, K. Goulianos, H. Grassmann, C. Green, L. Groer, C. Grosso-Pilcher, G. Guillian, J. Guimaraes da Costa, R. S. Guo, C. Haber, E. Hafen, S. R. Hahn, R. Hamilton, T. Handa, R. Handler, W. Hao, F. Happacher, K. Hara, A. D. Hardman, R. M. Harris, F. Hartmann, J. Hauser, E. Hayashi, J. Heinrich, A. Heiss, B. Hinrichsen, K. D. Hoffman, C. Holck, R. Hollebeek, L. Holloway, Z. Huang, B. T. Huffman, R. Hughes, J. Huston, J. Huth, H. Ikeda, M. Incagli, J. Incandela, G. Introzzi, J. Iwai, Y. Iwata, E. James, H. Jensen, U. Joshi, E. Kajfasz, H. Kambara, T. Kamon, T. Kaneko, K. Karr, H. Kasha, Y. Kato, T. A. Keaffaber, K. Kelley, M. Kelly, R. D. Kennedy, R. Kephart, D. Kestenbaum, D. Khazins, T. Kikuchi, M. Kirk, B. J. Kim, H. S. Kim, S. H. Kim, Y. K. Kim, L. Kirsch, S. Klimenko, D. Knoblauch, P. Koehn, A. Köngeter, K. Kondo, J. Konigsberg, K. Kordas, A. Korytov, E. Kovacs, W. Kowald, J. Kroll, M. Kruse, S. E. Kuhlmann, E. Kuns, K. Kurino, T. Kuwabara, A. T. Laasanen, S. Lami, S. Lammel, J. I. Lamoureux, M. Lancaster, M. Lanzoni, G. Latino, T. LeCompte, A. M. Lee, S. Leone, J. D. Lewis, M. Lindgren, T. M. Liss, J. B. Liu, Y. C. Liu, N. Lockyer, O. Long, M. Loreti, D. Lucchesi, P. Lukens, S. Lusin, J. Lys, K. Maeshima, P. Maksimovic, M. Mangano, M. Mariotti, J. P. Marriner, G. Martignon, A. Martin, J. A. J. Matthews, P. Mazzanti, K. McFarland, P. McIntyre, P. Melese, M. Menguzzato, A. Menzione, E. Meschi, S. Metzler, C. Miao, T. Miao, G. Michail, R. Miller, H. Minato, S. Miscetti, M. Mishina, S. Miyashita, N. Moggi, E. Moore, Y. Morita, A. Mukherjee, T. Muller, A. Munar, P. Murat, S. Murgia, M. Musy, H. Nakada, T. Nakaya, I. Nakano, C. Nelson, D. Neuberger, C. Newman-Holmes, C.-Y. P. Ngan, H. Niu, L. Nodulman, A. Nomerotski, S. H. Oh, T. Ohmoto, T. Ohsugi, R. Oishi, M. Okabe, T. Okusawa, J. Olsen, C. Pagliarone, R. Paoletti, V. Papadimitriou, S. P. Pappas, N. Parashar, A. Parri, D. Partos, J. Patrick, G. Pauletta, M. Paulini, A. Perazzo, L. Pescara, M. D. Peters, T. J. Phillips, G. Piacentino, M. Pillai, K. T. Pitts, R. Plunkett, A. Pompos, L. Pondrom, J. Proudfoot, F. Ptohos, G. Punzi, K. Ragan, D. Reher, A. Ribon, F. Rimondi, L. Ristori, W. J. Robertson, A. Robinson, T. Rodrigo, S. Rolli, L. Rosenson, R. Roser, T. Saab, W. K. Sakumoto, D. Saltzberg, A. Sansoni, L. Santi, H. Sato, P. Schlabach, E. E. Schmidt, M. P. Schmidt, A. Scott, A. Scribano, S. Segler, S. Seidel, Y. Seiya, F. Semeria, T. Shah, M. D. Shapiro, N. M. Shaw, P. F. Shepard, T. Shibayama, M. Shimojima, M. Shochet, J. Siegrist, A. Sill, P. Sinervo, P. Singh, K. Sliwa, C. Smith, F. D. Snider, J. Spalding, T. Speer, P. Sphicas, F. Spinella, M. Spiropulu, L. Spiegel, L. Stanco, J. Steele, A. Stefanini, R. Ströhmer, J. Strologas, F. Strumia, D. Stuart, K. Sumorok, J. Suzuki, T. Suzuki, T. Takahashi, T. Takano, R. Takashima, K. Takikawa, M. Tanaka, B. Tannenbaum, F. Tartarelli, W. Taylor, M. Tecchio, P. K. Teng, Y. Teramoto, K. Terashi, S. Tether, D. Theriot, T. L. Thomas, R. Thurman-Keup, M. Timko, P. Tipton, A. Titov, S. Tkaczyk, D. Toback, K. Tollefson, A. Tollestrup, H. Toyoda, W. Trischuk, J. F. de Troconiz, S. Truitt, J. Tseng, N. Turini, T. Uchida, F. Ukegawa, J. Valls, S. C. van den Brink, S. Vejcik, G. Velev, R. Vidal, R. Vilar, I. Vologouev, D. Vucinic, R. G. Wagner, R. L. Wagner, J. Wahl, N. B. Wallace, A. M. Walsh, C. Wang, C. H. Wang, M. J. Wang, A. Warburton, T. Watanabe, T. Watts, R. Webb, C. Wei, H. Wenzel, W. C. Wester, A. B. Wicklund, E. Wicklund, R. Wilkinson, H. H. Williams, P. Wilson, B. L. Winer, D. Winn, D. Wolinski, J. Wolinski, S. Worm, X. Wu, J. Wyss, A. Yagil, W. Yao, K. Yasuoka, G. P. Yeh, P. Yeh, J. Yoh, C. Yosef, T. Yoshida, I. Yu, A. Zanetti, F. Zetti, and S. Zucchelli

Subjects
Semileptonic decay, Physics, Nuclear and High Energy Physics, Particle physics, Meson, Dirac (video compression format), High Energy Physics::Phenomenology, Hadron, High Energy Physics::Experiment, Charge (physics), Jet (particle physics), Flavor, Lepton
Abstract

We present a measurement of the mass difference {Delta}m{sub d} for the B{sup 0} meson and the statistical power of the b flavor tagging methods used. The measurement uses 90 pb{sup -1} of data from p{ovr p} collisions at sqrt[s]=1.8 TeV collected with the CDF detector. An inclusive lepton trigger is used to collect a large sample of B hadron semileptonic decays. The mass difference {Delta}m{sub d} is determined from the proper time dependence of the fraction of B hadrons that undergo flavor oscillations. The flavor at decay is inferred from the charge of the lepton from semileptonic B decay. The initial flavor is inferred by determining the flavor of the other B hadron produced in the collision, either from its semileptonic decay (soft-lepton tag) or from its jet charge. The measurement yields {Delta}m{sub d}=(0.500{+-}0.052{+-}0.043){Dirac_h} ps{sup -1}, where the first uncertainty is statistical and the second uncertainty is systematic. The statistical powers ({var_epsilon}D{sup 2}) of the soft-lepton and jet-charge flavor taggers are (0.91{+-}0.10{+-}0.11)% and (0.78{+-}0.12{+-}0.08)%, respectively.

Published
1999

39. Measurement of theBd0Bd0oscillation frequency using dimuon data inpp¯collisions ats=1.8 TeV

Author

J. Lys, R. Roser, G. Velev, T. L. Watts, Y. Bonushkin, J.I. Friedman, H. Sato, H. Y. Chao, T. L. Thomas, Stephan Lammel, R. Kephart, C. H. Wang, R. Ely, Frank Hartmann, R. Vidal, H. H. Williams, H. Niu, N. Moggi, Alan Sill, T. Kuwabara, Sally Seidel, R. Takashima, N. Bruner, Jacobo Konigsberg, P. F. Shepard, W. Kowald, G. Introzzi, S. H. Oh, A. Stefanini, A. Byon-Wagner, Tetsuo Arisawa, E. Hayashi, M. L. Chu, James D. Olsen, Mosè Mariotti, Z. Feng, W. K. Sakumoto, J. Valls, D. Wolinski, S. Geer, J. Spalding, C. Grosso-Pilcher, S. Lusin, F. Happacher, P. T. Chang, Itsuo Nakano, M. Atac, M. T. Cheng, K. Kelley, S. Leone, H. S. Budd, B. A. Barnett, Umesh Joshi, J. Cooper, G. Michail, J. R. Bensinger, L. Groer, Alan Garfinkel, Masaaki Tanaka, S. Vejcik, Giorgio Apollinari, Dario Bisello, A. Bhatti, N. Eddy, O. Ganel, A. Scribano, J. Suzuki, P. McIntyre, R. Wilkinson, W. C. Wester, M. Garcia-Sciveres, R. J. Miller, W. Carithers, S. Murgia, M. Lindgren, A. Mukherjee, S. H. Kim, D. Reher, C. Pagliarone, S. Galeotti, D. Lucchesi, T. Kikuchi, T. Takano, P. Melese, R. J. Hollebeek, F. Strumia, Hiroto Kambara, B. Tannenbaum, S. Bertolucci, Thomas LeCompte, Andrea Sansoni, Tommaso Dorigo, Kenneth Bloom, H. Grassmann, J. Wolinski, Teruki Kamon, S. Truitt, S. Donati, J. I. Lamoureux, P. Schlabach, N. Parashar, S. Blusk, G. Giusti, J. P. Berge, A. J. Martin, Craig Blocker, K. Yasuoka, P. Yeh, A. Nomerotski, L. Pondrom, E. Wicklund, L. Breccia, J. Cassada, C. Smith, T. Uchida, T. Baumann, Y. Iwata, A. Cerri, J. Wyss, G. Chiarelli, Kaori Maeshima, W. Ashmanskas, Jochen Jens Heinrich, T. Shah, L. Holloway, F. Zetti, Frank Chlebana, Daniela Bortoletto, D. Costanzo, Th. Müller, S. R. Amendolia, K. Sliwa, L. Christofek, J. E. Elias, Scott D. Metzler, C. Holck, A. Akopian, D. P. Benjamin, M. Cordelli, M. M. Deninno, R. D. Kennedy, O. Long, S. Klimenko, T. Suzuki, R. Vilar, T. Takahashi, J. W. Chapman, J. Patrick, G. Busetto, Brian L Winer, Andrew Beretvas, L. Demortier, D. Errede, C. Ferretti, Y. Teramoto, G. W. Foster, E. James, A. Pompos, Maxwell Chertok, R. Cropp, J. Berryhill, R. G. Wagner, Y. Kato, D. Neuberger, G. Guillian, J. Guimaraes Da Costa, Luca Stanco, A. M. Lee, J. Siegrist, P. Sphicas, F. Tartarelli, K. T. Pitts, R. Culbertson, M. Franklin, M. P. Schmidt, Catherine Newman-Holmes, M. Timko, G. Piacentino, F. Spinella, S. P. Pappas, J. B. Liu, J. C. Freeman, I. Vologouev, R. L. Wagner, W. Hao, A. Brandl, P. Wilson, Virgil E Barnes, M. Menguzzato, E. Cocca, M. Binkley, T. Speer, E. Kuns, K. Goulianos, C. Haber, N. B. Wallace, B. Flaugher, M. Tecchio, T. Kaneko, S. Miscetti, John Huth, Marjorie Shapiro, T. Asakawa, M. G. Albrow, C. Couyoumtzelis, A. Robinson, Fumio Abe, A. Bodek, J. Iwai, C. Yosef, D. Dagenhart, J. Incandela, K. Biery, A. Parri, D. Kestenbaum, M. Dell'Orso, P. S. Chang, J. Conway, Marina Cobal, E. Kajfasz, P. Azzi-Bacchetta, R. Ströhmer, A. Titov, R. Hamilton, M. Pillai, Kiminori Kondo, G. Bellettini, G. Martignon, P. de Barbaro, G. Punzi, J. Tseng, A. Menzione, J. Wahl, Yanwen Liu, E. Engels, Ciro Bigongiari, M. Musy, K. Takikawa, T. Ohsugi, J. F. de Troconiz, C. Bromberg, E. Buckley-Geer, Riccardo Paoletti, P. Sinervo, A. Köngeter, F. Ptohos, P. N. Singh, Hiroshi Ikeda, W. J. Robertson, S. Gadomski, C. Miao, D. Toback, T. Saab, R. C. Webb, S. Zucchelli, R. E. Blair, F. Rimondi, Joe Kroll, R. K. Plunkett, M. J. Shochet, Stefano Belforte, P. Lukens, J. Boudreau, J. D. Lewis, T. Watanabe, M. Kirk, J. P. Marriner, Kazuhiko Hara, D. Amidei, L. Rosenson, J. Steele, M. Gold, S. C. van den Brink, M. Barone, M. Kelly, P. Koehn, S. Segler, Henrik Jeldtoft Jensen, J. Strologas, Andrey Korytov, W. Bokhari, Yasuo Fukui, L. E. Kirsch, Intae Yu, K. S. McFarland, S. Tether, V. Papadimitriou, M. Campbell, M. D. Peters, M. Lanzoni, P. Giannetti, Kostantinos Kordas, David Saltzberg, L. Ristori, T. Okusawa, P. Mazzanti, B. T. Huffman, R. E. Hughes, R. Handler, Henry J. Frisch, E. Kovacs, K. L. Byrum, S. Bagdasarov, K. Tollefson, Maria Spiropulu, C. Nelson, T. Ohmoto, Petar Maksimovic, M. Shimojima, W. Trischuk, J. Done, J. Huston, R. Oishi, D. Winn, Nicola Bacchetta, Andreas Warburton, P. K. Teng, S. Dell'Agnello, F. Bedeschi, R. S. Guo, Z. Huang, F. DeJongh, P. F. Derwent, S. Rolli, M. J. Wang, T. Miao, C. Wei, P. Giromini, C. Green, J. Proudfoot, M. W. Bailey, Anna Zanetti, A. Heiss, Robert M Harris, H. Kasha, R. Demina, A. Barbaro-Galtieri, B. Hinrichsen, M. Okabe, Xin Wu, M. Lancaster, S. E. Kuhlmann, D. Vucinic, F. Semeria, N. S. Lockyer, G. Dolce, R. Thurman-Keup, Cyp Ngan, T. A. Keaffaber, W-M. Yao, Andrea Castro, C. N. Chiou, T. Nakaya, N. M. Shaw, H. Akimoto, D. Khazins, A. Perazzo, K. Kurino, S. R. Hahn, K. Karr, I. Fiori, E. Meschi, A. W. Scott, D. Partos, J. Yoh, L. Pescara, S. Aota, J. Antos, Konstanty Sumorok, E. Moore, Hyun-Chul Kim, A. Gordon, B. J. Kim, A. Caner, S. Cihangir, Manfred Paulini, H. Nakada, Yongsun Kim, Nikos Giokaris, L. Santi, S. Tkaczyk, David Stuart, R. G. Feild, G. P. Yeh, Tony Liss, Teresa Rodrigo, T. J. Phillips, Y. Morita, E. S. Hafen, F. Ukegawa, A. Ribon, A. G. Clark, Jay Hauser, H. Wenzel, H. Minato, M. Mangano, Mark Kruse, D. Knoblauch, J. N. Bellinger, S. Bettelli, Paul Tipton, Daniel P Cronin-Hennessy, M. Incagli, B. Bevensee, S. Worm, A. T. Goshaw, G. Latino, D. Theriot, Kevin Burkett, A. M. Walsh, Wendy Taylor, J. A.J. Matthews, S. Errede, Duncan Carlsmith, W. Erdmann, T. Shibayama, M. Loreti, K. Ragan, A. Munar, Jay Dittmann, Gino Bolla, D. Cauz, G. Pauletta, M. Contreras, T. Daniels, Rossella Brunetti, Michele Gallinaro, Q. Fan, A. Tollestrup, K. Terashi, Nicola Turini, A. T. Laasanen, T. Devlin, Y. Seiya, M. Mishina, Y. Gotra, Avraham Yagil, S. Behrends, P. Murat, A. B. Wicklund, E. E. Schmidt, L. Nodulman, K. D. Hoffman, H. Toyoda, G. Bauer, A. D. Hardman, F. D. Snider, D. W. Gerdes, T. Handa, S. Miyashita, Leonard Spiegel, S. Lami, Tomoko Yoshida, and Kevin Einsweiler

Subjects
Physics, Particle physics, Nuclear and High Energy Physics, Luminosity (scattering theory), Muon, Meson, Oscillation, High Energy Physics::Phenomenology, Hadron, Quark model, Charge (physics), Elementary particle, Fermion, Quarkonium, Particle detector, Nuclear physics, Particle decay, B meson, High Energy Physics::Experiment, Collider Detector at Fermilab, Lepton
Abstract

${B}_{d}^{0}\ensuremath{-}{B}_{d}^{0}$ oscillations are observed in ``self-tagged'' samples of partially reconstructed $B$ mesons decaying into a lepton and a charmed meson collected in $p\overline{p}$ collisions at $\sqrt{s}=1.8\mathrm{TeV}.$ A flavor tagging technique is employed which relies upon the correlation between the flavor of $B$ mesons and the charge of a nearby particle. We measure the flavor oscillation frequency to be $\ensuremath{\Delta}{m}_{d}{=0.471}_{\ensuremath{-}0.068}^{+0.078}\ifmmode\pm\else\textpm\fi{}0.034{\mathrm{ps}}^{\mathrm{\ensuremath{-}}1}.$ The tagging method is also demonstrated in exclusive samples of ${B}_{u}^{+}\ensuremath{\rightarrow}J/\ensuremath{\psi}{K}^{+}$ and ${B}_{d}^{0}\ensuremath{\rightarrow}J/\ensuremath{\psi}{K}^{*0}(892),$ where similar flavor-charge correlations are observed. The tagging characteristics of the various samples are compared with each other, and with Monte Carlo simulations.

Published
1999

40. Observation ofB+→ψ(2S)K+andB0→ψ(2S)K*(892)0decays and measurements ofB-meson branching fractions intoJ/ψandψ(2S)final states

Author

Robert M Harris, G. Piacentino, S. Cihangir, Y. Bonushkin, R. Takashima, R. Thurman-Keup, E. Cocca, Manfred Paulini, A. Parri, D. Kestenbaum, B. A. Barnett, Giorgio Apollinari, Cyp Ngan, M. Dell'Orso, P. Lukens, H. Nakada, Andrea Castro, S. Miscetti, C. H. Wang, D. Khazins, M. Lindgren, B. Tannenbaum, V. Papadimitriou, Teruki Kamon, S. Truitt, Craig Blocker, G. Pauletta, M. Contreras, P. N. Singh, S. Aota, Marina Cobal, Yongsun Kim, Kaori Maeshima, Nikos Giokaris, L. Holloway, T. Shah, R. S. Guo, P. F. Derwent, L. Rosenson, R. L. Wagner, K. Goulianos, S. Blusk, Jochen Jens Heinrich, M. Garcia-Sciveres, R. J. Miller, Scott D. Metzler, A. Mukherjee, G. Velev, Tommaso Dorigo, F. Zetti, S. Worm, E. Moore, J. Patrick, R. Vilar, K. Karr, L. Santi, L. Pescara, Y. Teramoto, P. Wilson, H. Sato, G. Bellettini, D. Errede, P. Sphicas, F. Tartarelli, Virgil E Barnes, M. Lancaster, L. E. Kirsch, A. Byon-Wagner, Tetsuo Arisawa, F. Ukegawa, A. T. Goshaw, R. Ely, E. Hayashi, M. L. Chu, S. Bertolucci, J. Strologas, J. D. Lewis, T. Kuwabara, J. P. Berge, Mosè Mariotti, M. Menguzzato, Y. Kato, D. Neuberger, G. Guillian, J. Guimaraes Da Costa, Hyun-Chul Kim, T. Kaneko, Z. Feng, Catherine Newman-Holmes, S. Vejcik, N. Eddy, O. Ganel, R. J. Hollebeek, J. I. Lamoureux, R. Hamilton, L. Christofek, M. Pillai, C. Loomis, P. de Barbaro, K. T. Pitts, A. Ribon, S. Errede, A. Gordon, T. Suzuki, T. Speer, Kazuhiko Hara, H. Y. Chao, B. J. Kim, P. S. Chang, A. Menzione, C. Smith, L. Demortier, M. Mangano, W. K. Sakumoto, T. Takano, A. Pompos, P. Melese, S. Geer, R. D. Kennedy, A. Scribano, T. L. Watts, T. Le Compte, P. Koehn, Kostantinos Kordas, A. Caner, W. Hao, P. Limon, John Huth, Yasuo Fukui, James D. Olsen, J. Steele, T. Takahashi, J. W. Chapman, Luca Stanco, T. Okusawa, R. Kephart, Frank Hartmann, Alan Sill, J. Valls, D. Wolinski, K. Kelley, S. Leone, H. S. Budd, C. Grosso-Pilcher, W-M. Yao, P. Mazzanti, J. Spalding, C. Holck, Andrey Korytov, A. M. Walsh, D. Toback, T. Saab, A. Amadon, J. F. de Troconiz, M. Gold, N. B. Wallace, E. James, J. Siegrist, J. Done, E. Meschi, J. Huston, Masaaki Tanaka, W. C. Wester, W. Erdmann, J. Wyss, H. H. Williams, W. Kowald, G. Introzzi, A. Stefanini, F. Strumia, B. Flaugher, Avraham Yagil, C. Haber, R. E. Hughes, Petar Maksimovic, T. Ohsugi, M. J. Shochet, Wendy Taylor, J. A.J. Matthews, Q. Fan, Hiroshi Ikeda, Hiroto Kambara, M. Binkley, Andrea Sansoni, R. C. Webb, A. Tollestrup, G. Chiarelli, M. Atac, M. M. Deninno, S. Donati, J. Incandela, O. Long, Intae Yu, M. G. Albrow, D. Dagenhart, J. Tseng, Umesh Joshi, K. Biery, A. G. Clark, C. Nelson, J. Cooper, T. Baumann, K. L. Byrum, S. H. Kim, M. Cordelli, G. Busetto, Brian L Winer, D. Amidei, T. L. Thomas, D. Reher, K. Yasuoka, W. Ashmanskas, J. Conway, E. Kajfasz, E. Kovacs, T. Ohmoto, T. Shibayama, J. Boudreau, M. Loreti, S. Gadomski, P. Giromini, M. Okabe, R. Ströhmer, D. Winn, S. E. Kuhlmann, T. Devlin, C. Pagliarone, Z. Huang, R. G. Wagner, Anna Zanetti, H. Kasha, F. de Jongh, Douglas Benjamin, Mark Kruse, E. Kuns, G. Giusti, M. Tecchio, D. Knoblauch, Leonard Spiegel, Paul Tipton, S. P. Pappas, A. Titov, N. Moggi, Tomoko Yoshida, C. Miao, T. Daniels, P. K. Teng, David Saltzberg, K. Terashi, B. Hinrichsen, Joe Kroll, Kiminori Kondo, N. M. Shaw, Nicola Turini, A. T. Laasanen, J. Proudfoot, T. Uchida, J. B. Liu, Jay Hauser, B. Bevensee, R. Vidal, Sally Seidel, R. K. Plunkett, D. Costanzo, R. Demina, S. Galeotti, F. Ptohos, J. Yoh, N. Bruner, W. J. Robertson, D. Lucchesi, H. Grassmann, W. Carithers, S. Murgia, S. Tkaczyk, David Stuart, Th. Müller, J. Wolinski, S. R. Amendolia, Andrew Beretvas, H. Minato, P. F. Shepard, Jacobo Konigsberg, K. Sliwa, S. Klimenko, M. Shimojima, Y. Iwata, S. Tether, A. J. Martin, S. H. Oh, P. Schlabach, K. Ragan, R. G. Feild, G. P. Yeh, T. Watanabe, J. N. Bellinger, Andreas Warburton, H. Wenzel, Jay Dittmann, Daniela Bortoletto, K. Tollefson, S. Zucchelli, R. E. Blair, S. Bettelli, Daniel P Cronin-Hennessy, F. Rimondi, D. Cauz, L. Pondrom, E. Wicklund, Tony Liss, Itsuo Nakano, A. Nomerotski, W. Bokhari, R. Culbertson, L. Breccia, G. Michail, Kevin Burkett, M. T. Cheng, Michele Gallinaro, Teresa Rodrigo, J. Cassada, J. Berryhill, T. J. Phillips, Y. Morita, J. R. Bensinger, L. Groer, Alan Garfinkel, J. Suzuki, P. McIntyre, M. Campbell, M. D. Peters, M. Lanzoni, P. Giannetti, M. J. Wang, R. Wilkinson, T. Miao, A. Bodek, F. Spinella, E. S. Hafen, J. E. Elias, Fumio Abe, J. Iwai, R. Handler, Xin Wu, C. Yosef, K. Takikawa, N. S. Lockyer, C. N. Chiou, S. Dell'Agnello, M. Incagli, A. Cerri, G. Latino, J. Lys, R. Roser, D. Theriot, J.I. Friedman, Y. Gotra, M. Franklin, M. Reischl, J. C. Freeman, A. Köngeter, N. Parashar, Duncan Carlsmith, M. Mishina, S. Behrends, A. B. Wicklund, G. W. Foster, H. Akimoto, E. E. Schmidt, K. D. Hoffman, H. Toyoda, A. Perazzo, Marcus Hohlmann, T. Handa, S. R. Hahn, J. Antos, Konstanty Sumorok, J. Wahl, S. Segler, Yanwen Liu, B. T. Huffman, S. Bagdasarov, Maria Spiropulu, S. Rolli, C. Wei, Frank Chlebana, A. Akopian, S. Lusin, F. Happacher, P. T. Chang, M. Timko, Dario Bisello, A. Bhatti, C. Ferretti, P. Murat, L. Nodulman, G. Bauer, A. D. Hardman, F. D. Snider, D. W. Gerdes, S. Miyashita, S. Lami, Kevin Einsweiler, Gino Bolla, Rossella Brunetti, Y. Seiya, Stephan Lammel, T. Kikuchi, P. Yeh, T. Asakawa, G. Punzi, E. Engels, Ciro Bigongiari, J. P. Marriner, M. Barone, S. C. van den Brink, R. Oishi, M. W. Bailey, Maxwell Chertok, Marjorie Shapiro, E. Buckley-Geer, Riccardo Paoletti, P. Sinervo, M. P. Schmidt, C. Couyoumtzelis, P. Azzi-Bacchetta, C. Bromberg, A. Barbaro-Galtieri, D. Vucinic, F. Semeria, T. A. Keaffaber, K. Kurino, I. Fiori, A. W. Scott, Stefano Belforte, Henrik Jeldtoft Jensen, L. Ristori, W. Trischuk, Nicola Bacchetta, and F. Bedeschi

Subjects
Physics, Nuclear and High Energy Physics, 010308 nuclear & particles physics, Branching fraction, Hadron, Branching (polymer chemistry), 01 natural sciences, Silicon vertex detector, Nuclear physics, Crystallography, Factorization, 0103 physical sciences, Mass spectrum, B meson, 010306 general physics, Collider Detector at Fermilab
Abstract

We report the observations of the decays B{sup +}{yields}{psi}(2S)K{sup +} and B{sup 0}{yields}{psi}(2S)K*(892){sup 0} in p{ovr p} collisions at a center-of-mass energy of 1.8 TeV using a 110 pb{sup -1} data sample recorded by the Collider Detector at Fermilab. We also reconstruct the decays B{sup +}{yields}J/{psi}K{sup +} and B{sup 0}{yields}J/{psi}K*(892){sup 0} and measure the six ratios of branching fractions of these four decays. The relative branching-fraction results are shown to be consistent with phenomenological factorization calculations of hadronic B-meson decays. We use the world-average branching fraction B(B{sup +}{yields}J/{psi}K{sup +}) to derive B(B{sup +}{yields}{psi}(2S)K{sup +})=(0.56{+-}0.08{+-}0.10)x10{sup -3}, B(B{sup 0}{yields}{psi}(2S)K*(892){sup 0})=(0.92{+-}0.20{+-}0.16)x10{sup -3}, and B(B{sup 0}{yields}J/{psi}K*(892){sup 0})=(1.78{+-}0.14{+-}0.29)x10{sup -3}, where the first and second uncertainties are statistical and systematic, respectively.

Published
1998

41. Measurement of correlated μ-b¯ jet cross sections in pp¯ collisions at s=1.8 TeV

Author

K. L. Byrum, S. Vejcik, P. Giromini, H. Kasha, C. Anway-Wiese, R. J. Miller, A. Scribano, A. Mukherjee, S. Miscetti, Marina Cobal, J. D. Cunningham, G. Bellettini, Andrea Sansoni, S. Donati, T. Takahashi, F. Cervelli, C. Pagliarone, S. Galeotti, K. Yasuoka, R. L. Wagner, D. Lucchesi, Luca Stanco, K. Biery, G. Pauletta, Chris Wendt, G. Houk, M. Contreras, P. Schlabach, K. Goulianos, P. Sphicas, F. Tartarelli, Virgil E Barnes, W. Koska, E. Kovacs, W. Carithers, Umesh Joshi, C. Haber, M. Turcotte, D. Benton, S. Cihangir, G. Piacentino, M. Franklin, H. Grassmann, C. Couyoumtzelis, C. Nelson, J. Cooper, A. Caner, S. Funaki, S. Eno, S. Lammel, Manfred Paulini, J. Kroll, James Strait, J. Konigsberg, S. Mikamo, Daniela Bortoletto, D. Amidei, A. T. Goshaw, R. Hamilton, M. Pillai, M. Vondracek, C. Loomis, J. C. Freeman, M. Binkley, Q. Shen, A. Menzione, H. Mitsushio, F. Azfar, F. Ptohos, W. J. Robertson, M. G. Albrow, S. A. Hauger, Robert M Harris, R. M. Keup, S. H. Kim, F. Zetti, C. Hawk, P. de Barbaro, E. Kajfasz, M. Miller, K. Ragan, M. J. Wang, Douglas Benjamin, Andrew Beretvas, J. Bao, Patrizia Azzi, T. LeCompte, R. M. Hans, W. Bokhari, J. C. Yun, Yongsun Kim, Nikos Giokaris, S. C. van den Brink, A. Spies, T. A. Fuess, B. Farhat, A. Maghakian, T. Boulos, G. Wang, M. Gold, F. DeJongh, X. Wu, K. Sliwa, T. L. Watts, F. Bird, T. Rodrigo, S. Miyashita, Andrea Castro, W-M. Yao, R. W. Kadel, H. Y. Chao, D. Crane, A. Byon-Wagner, H. Iso, J. Lys, F. Keyvan, Fumio Abe, S. Errede, M. Yin, E. Meschi, C. H. Wang, M. Lindgren, P. Yeh, D. Glenzinski, Sung Keun Park, P. Hu, Henry J. Frisch, G. Unal, Hyun-Chul Kim, J.I. Friedman, J. F. de Troconiz, R. Vidal, Gordon Watts, Alan Sill, R. J. Hollebeek, H. Keutelian, J. I. Lamoureux, Lawrence Nodulman, Steve Kuhlmann, Y. Seiya, J. D. Lewis, R. D. Kennedy, K. Takikawa, T. Baumann, N. S. Lockyer, A. Dunn, J. Spalding, O. Schneider, M. Cordelli, G. Busetto, J. Mansour, C. N. Chiou, M. Campbell, R. Oishi, R. Mattingly, D. Neuberger, D. A. Kardelis, P. F. Shepard, W. C. Wester, S. H. Oh, M. D. Peters, R. G. Wagner, L. Holloway, Doyeong Kim, D. A. Smith, P. Giannetti, S. Leone, A. Bodek, T. Muller, M. J. Shochet, S. B. Kim, Kostantinos Kordas, A. Schindler, G. Sganos, E. H. Low, R. E. Hughes, C. Yosef, V. Scarpine, Hong Sj, R. Handler, H. S. Budd, N. Produit, P. Singh, P. Melese, Petar Maksimovic, J. Patrick, A. Zanetti, T. Westhusing, M. Krasberg, James Bensinger, P. F. Derwent, D. Kestenbaum, M. Dell'Orso, Sally Seidel, L. Pondrom, E. Wicklund, Kazuhiko Hara, G. Michail, L. Groer, Alan Garfinkel, J. Wolinski, T. Chikamatsu, S. Dell'Agnello, S. R. Amendolia, P. McIntyre, M. Shimojima, P. Maas, I. Yu, J. E. Elias, J. Tseng, R. Wilkinson, Andreas Warburton, Jay Dittmann, M. W. Bailey, R. C. Webb, A. Martin, S. Bertolucci, H. Areti, T. Song, Weiya Zhang, Yasuo Fukui, P. K. Teng, Mosè Mariotti, S. Zucchelli, R. E. Blair, F. Rimondi, J. P. Berge, C. Boswell, Y. Ye, G. F. Sciacca, Nicola Labanca, T. Okusawa, Y. Teramoto, Michele Gallinaro, L. Song, A. Fry, W. Badgett, K. Strahl, G. Bauer, K. E. Ohl, L. Christofek, R. B. Drucker, J. Hylen, F. D. Snider, L. Rosenson, G. Punzi, B. L. Winer, E. Engels, G. W. Foster, C. P. Jessop, J. Huston, W. K. Sakumoto, P. Auchincloss, A. Gordon, S. Geer, L. E. Kirsch, Jun Lu, Mark Kruse, C. Grosso-Pilcher, J. P. Marriner, S. Tether, Paul Tipton, D. W. Gerdes, T. Kaneko, K. Tollefson, B. Flaugher, J. Tonnison, J. Incandela, S. Ogawa, J. Conway, P. Kesten, R. L. Swartz, Marjorie Shapiro, A. Titov, Kiminori Kondo, Jing Wang, E. Buckley-Geer, Riccardo Paoletti, D. Errede, P. Sinervo, A. Hölscher, M. Incagli, D. Theriot, Y. Kato, Dario Bisello, A. Bhatti, Catherine Newman-Holmes, Duncan Carlsmith, T. L. Thomas, P. Bartalini, Y. Cen, Q. Fan, J. Cammerata, A. Tollestrup, T. Devlin, Jose M. Benlloch, M. Mishina, S. Behrends, A. B. Wicklund, P. Musgrave, E. E. Schmidt, S. Delchamps, D. Y. Wu, A. Grewal, P. Hurst, Le Zhang, G. W. Brandenburg, D. D. Yovanovitch, J. Wyss, G. Chiarelli, M. M. Deninno, O. Long, M. Roach-Bellino, E. Kuns, P. Lukens, S. Tkaczyk, David Stuart, G. Sullivan, V. Papadimitriou, M. Timko, G. P. Yeh, J. Skarha, T. Yoshida, P. Koehn, Tony Liss, T. Mimashi, M. Dickson, S. Segler, B. T. Huffman, N. Wainer, A. Sgolacchia, R. P. Thun, Q. F. Wang, R. K. Plunkett, J. Steele, H. Jensen, T. J. Phillips, Jakita O. Thomas, C. Wei, Jochen Jens Heinrich, L. Pescara, R. C. Walker, S. R. Hahn, M. T. Cheng, Avraham Yagil, J. Mueller, J. Antos, Konstanty Sumorok, L. F. Nakae, Y. Morita, J. Siegrist, Leonard Spiegel, H. Wenzel, F. Ukegawa, N. M. Shaw, M. P. Schmidt, B. Denby, M. Mangano, I. Nakano, J. Yoh, B. A. Barnett, L. Keeble, Giorgio Apollinari, Teruki Kamon, Craig Blocker, L. Demortier, V. Bolognesi, Kaori Maeshima, C. Bromberg, P. Wilson, Stefano Belforte, Wendy Taylor, Kevin Einsweiler, J. A.J. Matthews, G. Gagliardi, L. Ristori, Allan G Clark, P. Limon, John Huth, D. Saltzberg, J. W. Chapman, C. Campagnari, Nicola Bacchetta, J. Romano, H. H. Williams, W. Kowald, A. Stefanini, J. Gonzalez, M. Loreti, F. Bedeschi, B. Harral, M. Atac, R. Kephart, T. Daniels, S. Zhang, A. Barbaro-Galtieri, L. Gladney, Nicola Turini, A. T. Laasanen, D. Vucinic, Jay Hauser, S. Moulding, N. Uemura, C. B. Luchini, M. Frautschi, Sacha E Kopp, R. Ely, I. Fiori, J. N. Bellinger, Daniel P Cronin-Hennessy, James Proudfoot, and Kevin Burkett

Subjects
Nuclear physics, Physics, Quantum chromodynamics, Nuclear and High Energy Physics, Particle physics, Muon, High Energy Physics::Phenomenology, Hadron, Order (ring theory), High Energy Physics::Experiment, Jet (particle physics), Bar (unit)
Abstract

We report on measurements of differential $\mu - {\bar b}$ cross sections, where the muon is from a semi-leptonic $b$ decay and the ${\bar b}$ is identified using precision track reconstruction in jets. The semi-differential correlated cross sections, d$\sigma$/d$\Et^{{\bar b}}$, d$\sigma$/d$\pt^{{\bar b}}$, and d$\sigma$/d$\delta\phi(\mu - {\bar b})$ for $\pt^{\mu}>$~9 GeV/c, $|\eta^{\mu}| $~10 GeV, $|\eta^{{\bar b}}

Published
1996

42. Measurements of semileptonic branching fractions of B mesons at the Upsilon (4S) resonance

Author

F. Morrow, D. Besson, D. G. Cassel, V. Romero, J. K. Nelson, W. C. Li, Maurice Garcia-Sciveres, T. Jensen, K. Sparks, C. Bebek, Marina Artuso, M. S. Alam, V. Jain, M. Procario, Sheldon Stone, E. H. Thorndike, J. Kandaswamy, F. M. Pipkin, P. S. Drell, M. Modesitt, K. Honscheid, J. Wolinski, D. Coppage, Hubert Kroha, C. R. Sun, R. D. Kass, A. M. Halling, J. P. Alexander, T. Haupt, R. Kowalewski, M. Saulnier, M. Goldberg, N. Horwitz, Daniela Bortoletto, Chunjie Wang, R. S. Galik, Ha Lam, J. W. Dewire, D. L. Hartill, R. Poling, G. C. Moneti, Karl Berkelman, M. D. Mestayer, M. M. Zoeller, E. I. Shibata, B. Geiser, Elliott Cheu, J. Whitmore, R. Kennett, M. L. Kelly, B. Gittelman, G. Crawford, I. J. Kim, S. W. Gray, S. E. Csorna, D. N. Brown, K. Kinoshita, R. Malchow, N. Kwak, T. Letson, D. H. Miller, R. L. McIlwain, A. V. Barnes, S. Schrenk, H. Kagan, D. R. Johnson, M. Thusalidas, R. Davis, D. L. Kreinick, J. Dominick, M. Battle, D. M. Coffman, B. K. Heltsley, R. Ammar, P. N. Wang, N. Katayama, Ian Shipsey, T. E. Browder, P. Wilson, Tomasz Skwarnicki, R. Fulton, S. Henderson, G. Zhu, D. Xiao, S. F. Schaffner, J. Bartelt, Yuichi Kubota, R. Ehrlich, S. Ro, Richard Wilson, P. Rubin, D. Perticone, Yoram Rozen, W. M. Yao, P. Haas, Philip Baringer, and B. Nemati

Subjects
Physics, Particle physics, Muon, Meson, Branching fraction, Electron–positron annihilation, Hadron, Theoretical models, B meson
Abstract

We report new measurements of semileptonic branching fractions of $B$ mesons produced at the $\ensuremath{\Upsilon}(4S)$ resonance determined by fitting the inclusive electron and muon momentum spectra to different theoretical models. Using $B(\overline{B}\ensuremath{\rightarrow}X{\ensuremath{\ell}}^{\ensuremath{-}}\overline{\ensuremath{\nu}})$ to denote the average of the semileptonic branching fractions for $B$ decay to electrons and muons, we obtain $B(\overline{B}\ensuremath{\rightarrow}X{\ensuremath{\ell}}^{\ensuremath{-}}\overline{\ensuremath{\nu}})=(10.5\ifmmode\pm\else\textpm\fi{}0.2\ifmmode\pm\else\textpm\fi{}0.4)%$ using the refined free-quark model of Altarelli et al., and $B(\overline{B}\ensuremath{\rightarrow}X{\ensuremath{\ell}}^{\ensuremath{-}}\overline{\ensuremath{\nu}})=(11.2\ifmmode\pm\else\textpm\fi{}0.3\ifmmode\pm\else\textpm\fi{}0.4)%$ using a modified version of the form-factor model of Isgur et al., in which the ${D}^{**}{\ensuremath{\ell}}^{\ensuremath{-}}\overline{\ensuremath{\nu}}$ contribution is allowed to float in the fit. The average of these two results is $B(\overline{B}\ensuremath{\rightarrow}X{\ensuremath{\ell}}^{\ensuremath{-}}\overline{\ensuremath{\nu}})=(10.8\ifmmode\pm\else\textpm\fi{}0.2\ifmmode\pm\else\textpm\fi{}0.4\ifmmode\pm\else\textpm\fi{}0.4)%$, where the errors are statistical, systematic uncertainties in the measurement, and systematic uncertainties associated with the theoretical models, respectively. Semileptonic branching fractions as low as this are difficult to accommodate in theoretical models where hadronic $B$-meson decays arise only from spectator diagrams. We use dilepton yields to limit the uncertainty in the semileptonic branching fraction due to the possible existence of non-$B\overline{B}$ decays of the $\ensuremath{\Upsilon}(4S)$. In addition, we tag neutral $B$ mesons using the decays ${\overline{B}}^{0}\ensuremath{\rightarrow}{D}^{*+}{\ensuremath{\pi}}^{\ensuremath{-}}$ and ${\overline{B}}^{0}\ensuremath{\rightarrow}{D}^{*+}{\ensuremath{\ell}}^{\ensuremath{-}}\overline{\ensuremath{\nu}}$ to obtain the first direct measurement of semileptonic branching fractions for neutral $B$ mesons; the average of the electron and muon results for neutral $B$ mesons is $B({\overline{B}}^{0}\ensuremath{\rightarrow}X{\ensuremath{\ell}}^{\ensuremath{-}}\overline{\ensuremath{\nu}})=(9.9\ifmmode\pm\else\textpm\fi{}3.0\ifmmode\pm\else\textpm\fi{}0.9)%$.

Published
1992

43. Inclusive and exclusive decays of B mesons to final states including charm and charmonium mesons

Author

B. Nemati, F. Morrow, D. Besson, J. Mevissen, Harris Kagan, M. Thusalidas, J. Kandaswamy, W. C. Li, Mats A Selen, F. M. Pipkin, M. Goldberg, A. J. Sadoff, E. H. Thorndike, T. Jensen, Daniela Bortoletto, N. Kwak, J. Whitmore, D. Peterson, L. Garren, Ron Poling, C. O'Grady, D. L. Hartill, Richard Wilson, B. Geiser, D. M. Coffman, K. Honscheid, N. Horwitz, M. D. Mestayer, Tomasz Skwarnicki, T. Haupt, Maurice Garcia-Sciveres, D. Coppage, J. Masui, Chunjie Wang, B. K. Heltsley, J. P. Alexander, C. R. Ng, R. Davis, D. Perticone, M. M. Zoeller, Elliott Cheu, M. Sapper, K. K. Gan, G. Crawford, Ian Shipsey, Y. Zhu, T. Letson, D. H. Miller, T. E. Browder, R. L. McIlwain, Yoram Rozen, V. Romero, R. Malchow, J. K. Nelson, B. Gittelman, G. Zhu, W. M. Yao, John Yelton, P. Haas, M. L. Kelly, R. S. Galik, S. W. Gray, S. Nandi, R. Ammar, G. C. Moneti, I. J. Kim, D. L. Kreinick, R. Fulton, A. V. Barnes, S. Schrenk, P. Wilson, D. Riley, S. E. Csorna, E. I. Shibata, N. Katayama, Philip Baringer, J. Wolinski, V. Jain, D. G. Cassel, P. N. Wang, S. F. Schaffner, M. Modesitt, M. Procario, K. Kinoshita, J. Bartelt, A. Silverman, P. S. Drell, E. Nordberg, J. Dominick, D. R. Johnson, M. Pisharody, Karl Berkelman, Jorge Luis Rodriguez, G. S. Ludwig, Ha Lam, M. Battle, H. Worden, M. S. Alam, Hubert Kroha, P. Rubin, Yuichi Kubota, D. Xiao, V. Sharma, D. N. Brown, C. Bebek, R. Ehrlich, K. Sparks, S. Ro, A. P. Freyberger, Marina Artuso, A. M. Halling, M. Worris, N. B. Mistry, Sheldon Stone, Paul Avery, J. D. Lewis, C. R. Sun, and R. D. Kass

Subjects
Physics, Particle physics, Meson, Branching fraction, Computer Science::Information Retrieval, Electron–positron annihilation, Hadron, Quarkonium, Nuclear physics, Particle decay, Pion, High Energy Physics::Experiment, B meson, Nuclear Experiment
Abstract

We have studied hadronic decays of {ital B} mesons. We report measurements of exclusive branching ratios of several charm decay modes of {ital B} mesons to final states with a {ital D} or {ital D}{sup *} and one to three charged pions or a charged {rho} and to final states with a {psi} or {psi}{prime}, a kaon, and up to two charged pions. We have also measured inclusive branching ratios for {ital B} decays to {ital D} and {ital D}{sup *} and the spectra of these particles in {ital B} decays. The total charm content in {ital B} decay is found to be (101{plus minus}12)%. The branching ratios and spectra are compared to form-factor models. We extract the parameters {ital a}{sub 1} and {ital a}{sub 2} of the model of Bauer, Stech, and Wirbel and the {ital D}{sub {ital S}} decay constant. The masses of the {ital {bar B}} {sup 0} and {ital B}{sup {minus}} mesons are measured. The mass difference between {ital {bar B}} {sup 0} and {ital B}{sup {minus}} is found to be {minus}0.4{plus minus}0.6{plus minus}0.5 MeV/{ital c}{sup 2}.

Published
1992

44. B0B¯0mixing at theΥ(4S)

Author

D. M. Coffman, B. K. Heltsley, J. Whitmore, D. L. Kreinick, C. Bebek, T. Jensen, H. Kagan, E. H. Thorndike, N. Horwitz, D. G. Cassel, W. Y. Chen, L. Garren, Ha Lam, Daniela Bortoletto, R. Poling, R. Kowalewski, F. M. Pipkin, J. W. Dewire, M. S. Alam, R. Desalvo, S. E. Csorna, J. Byrd, C. H. Park, A. M. Halling, M. Worris, A. J. Sadoff, P. S. Drell, K. Kinoshita, N. B. Mistry, Sheldon Stone, D. L. Hartill, Thomas Ferguson, Paul Avery, D. R. Johnson, M. Sapper, Xinchou Lou, E. Blucher, J. Wolinski, M. Pisharody, Karl Berkelman, J. Kandaswamy, C. O'Grady, B. Gittelman, I. J. Kim, R. S. Galik, Marina Artuso, M. Procario, D. Peterson, Tomasz Skwarnicki, A. Jawahery, T. J. V. Bowcock, Elliott Cheu, M. Hempstead, Glen D. Crawford, N. Katayama, E. I. Shibata, C. R. Sun, R. D. Kass, M. D. Mestayer, T. Letson, Wei Li, John Yelton, D. H. Miller, R. L. McIlwain, C. R. Ng, H. Worden, P. Lubrano, R. Fulton, P. Haas, M. Goldberg, E. Nordberg, G. C. Moneti, Vivek Sharma, W. M. Yao, J. D. Lewis, T. Copie, S. Nandi, F. Morrow, D. Riley, I. C. Brock, Yuichi Kubota, D. Xiao, Richard Wilson, A. Silverman, R. Namjoshi, S. W. Gray, James Mueller, Philip Baringer, D. Perticone, R. Ehrlich, I. P. J. Shipsey, and D. Z. Besson

Subjects
Semileptonic decay, Physics, Particle decay, Particle physics, Meson, Branching fraction, Hadron, General Physics and Astronomy, B meson, Quarkonium, Lepton
Abstract

We have measured B/sup 0/B-bar/sup 0/ mixing by observing like-sign dilepton events in UPSILON(4S) decay. Assuming that the semileptonic branching fractions of the charged and neutral B mesons are equal and that the UPSILON(4S) decays to B/sup +/B/sup -/ 55% of the time and to B/sup 0/B-bar/sup 0/ 45% of the time, we measure the mixing parameter r to be 0.19 +- 0.06 +- 0.06, where the first error is statistical and the second is systematic.

Published
1989

45. Charm production in nonresonante+e−annihilations at√s =10.55 GeV

Author

D. G. Cassel, Thomas Ferguson, W. C. Li, Daniela Bortoletto, T. Jensen, Ian Brock, J. W. Dewire, V. Tanikella, R. Kowalewski, Murdock Gilchriese, B. Gittelman, R. DeSalvo, R. S. Galik, Y. Kubota, G. C. Moneti, I. J. Kim, M. Procario, Ian Shipsey, D. Perticone, S. Holzner, S. Behrends, E. H. Thorndike, D. Riley, D. R. Johnson, N. B. Mistry, F. M. Pipkin, L. Garren, A. M. Halling, D. Besson, S. E. Csorna, M. S. Alam, F. Morrow, E. Blucher, E. I. Shibata, G. B. Word, Xinchou Lou, K. Kinoshita, A. Silverman, Ron Poling, M. Hempstead, C. Bebek, Joan A. Guida, J. Kandaswamy, R. W. Kraemer, R. S. Panvini, G. J. Bobbink, A. Jawahery, J. Wolinski, R. Namjoshi, Paul Tipton, S. W. Gray, Jan M. Guida, D. Peterson, D. Xiao, H. Kagan, Sheldon Stone, Paul Avery, T. Letson, D. H. Miller, T. Copie, M. Goldberg, Richard Wilson, M. D. Mestayer, C. R. Sun, A. J. Sadoff, R. L. McIlwain, R. D. Kass, T. J. V. Bowcock, D. L. Hartill, P. Haas, P. Lubrano, Hans J. Vogel, R. Holmes, N. Katayama, P. Thoma, N. Horwitz, Alice Bean, M. Pisharody, Karl Berkelman, D. L. Kreinick, B. K. Heltsley, Kenneth Francis Read, E. Nordberg, V. Sharma, R. Ehrlich, P. Baringer, and James Mueller

Subjects
Nuclear physics, Quantum chromodynamics, Charmed baryons, Baryon, Physics, Particle physics, Annihilation, Meson, Electron–positron annihilation, Hadron, Charm (quantum number), GeneralLiterature_REFERENCE(e.g.,dictionaries,encyclopedias,glossaries)
Abstract

This is the publisher's version also available electronically from http://journals.aps.org/prd/abstract/10.1103/PhysRevD.37.1719

Published
1988

46. Improved upper limit on flavor-changing neutral-current decays of thebquark

Author

A. M. Halling, I. J. Kim, S. W. Gray, Murdock Gilchriese, Chih-Ree Sun, D. Perticone, P. Lubrano, B. Gittelman, S. Holzner, S. Behrends, Xinchou Lou, D. Riley, T. Copie, C. Bebek, R. Holmes, A. Engler, W. C. Li, Paul Tipton, T. Jensen, Thomas Ferguson, M. Hempstead, N. Horwitz, Themistocles Bowcock, L. Garren, R. S. Galik, Y. Kubota, Ron Poling, Ian Shipsey, A. Chen, Harris Kagan, Alice Bean, E. H. Thorndike, Joan A. Guida, E. Nordberg, F. M. Pipkin, J. Kandaswamy, P. Thoma, R. W. Kraemer, Jan M. Guida, G. B. Word, S. E. Csorna, F. Morrow, V. Tanikella, A. Silverman, D. Peterson, M. Pisharody, Karl Berkelman, R. S. Panvini, G. J. Bobbink, K. Kinoshita, C. Rippich, D. Xiao, D. G. Cassel, Ian Brock, R. Kowalewski, Hans J. Vogel, R. D. Kass, A. J. Sadoff, R. DeSalvo, J. Wolinski, Richard Wilson, G. C. Moneti, N. Katayama, N. B. Mistry, P. Haas, Sheldon Stone, Paul Avery, A. Jawahery, E. Blucher, M. Goldberg, R. Namjoshi, M. S. Alam, M. D. Mestayer, Daniela Bortoletto, James Mueller, J. W. Dewire, V. Sharma, R. Ehrlich, D. Besson, M. Procario, D. L. Hartill, B. K. Heltsley, Kenneth Francis Read, and D. L. Kreinick

Subjects
Physics, Particle decay, Particle physics, Meson, Branching fraction, Electron–positron annihilation, Flavor-changing neutral current, High Energy Physics::Phenomenology, Hadron, High Energy Physics::Experiment, B meson, Bottom quark
Abstract

We report the results of a new search for flavor-changing neutral-current decays of the b quark and present a 90%-confidence-level upper limit for the branching fraction for B\ensuremath{\rightarrow}${l}^{+}$${l}^{\mathrm{\ensuremath{-}}}$X of 1.2\ifmmode\times\else\texttimes\fi{}${10}^{\mathrm{\ensuremath{-}}3}$.

Published
1987

47. Study of the decay B¯0→D+l−ν¯

Author

D. Bortoletto, M. Goldberg, N. Horwitz, M. D. Mestayer, G. C. Moneti, V. Sharma, I. P. J. Shipsey, T. Skwarnicki, S. E. Csorna, T. Letson, I. C. Brock, T. Ferguson, J. Alexander, M. Artuso, C. Bebek, K. Berkelman, D. G. Cassel, E. Cheu, D. M. Coffman, G. Crawford, J. W. DeWire, P. S. Drell, R. Ehrlich, R. S. Galik, B. Gittelman, S. W. Gray, A. M. Halling, D. L. Hartill, B. K. Heltsley, J. Kandaswamy, R. Kowalewski, D. L. Kreinick, Y. Kubota, J. D. Lewis, N. B. Mistry, J. Mueller, R. Namjoshi, S. Nandi, E. Nordberg, C. O’Grady, D. Peterson, M. Pisharody, D. Riley, M. Sapper, A. Silverman, S. Stone, H. Worden, M. Worris, A. J. Sadoff, P. Avery, D. Besson, L. Garren, J. Yelton, T. Bowcock, K. Kinoshita, F. M. Pipkin, M. Procario, Richard Wilson, J. Wolinski, D. Xiao, R. Ammar, P. Baringer, P. Haas, Ha Lam, A. Jawahery, C. H. Park, D. Perticone, R. Poling, R. Fulton, M. Hempstead, T. Jensen, D. R. Johnson, H. Kagan, R. Kass, F. Morrow, J. Whitmore, W.-Y. Chen, R. L. McIlwain, D. H. Miller, C. R. Ng, E. I. Shibata, W.-M. Yao, K. Sparks, E. H. Thorndike, M. S. Alam, N. Katayama, I. J. Kim, W. C. Li, X. C. Lou, and C. R. Sun

Subjects
Physics, Semileptonic decay, Crystallography, Particle decay, Antiparticle, Meson, Branching fraction, TheoryofComputation_ANALYSISOFALGORITHMSANDPROBLEMCOMPLEXITY, Hadron, General Physics and Astronomy, B meson, Cornell Electron Storage Ring
Abstract

Using a sample of 484 000 {ital B} mesons collected with the CLEO detector at the Cornell Electron Storage Ring, we have measured {ital B}({ital {bar B}}{sup 0}{r arrow}D{sup *+}l{sup {minus}}{nu}) and found that the polarization of the {ital D}{sup *+} is small. These results are compared with models of semileptonic {ital B} decay.

Published
1989

48. Study of the decayB→ψX

Author

Jan M. Guida, C. Rippich, T. Copie, Chih-Ree Sun, Ron Poling, R. D. Kass, D. Perticone, S. Holzner, S. Behrends, I. J. Kim, J. Wolinski, C. Bebek, M. Pisharody, S. W. Gray, N. Katayama, Karl Berkelman, P. Lubrano, Joan A. Guida, Richard Wilson, E. H. Thorndike, J. Kandaswamy, Sheldon Stone, D. G. Cassel, M. D. Mestayer, B. K. Heltsley, A. Jawahery, Kenneth Francis Read, Paul Avery, F. M. Pipkin, R. Kraemer, R. Holmes, A. Engler, Alice Bean, D. Riley, A. Chen, T. J. V. Bowcock, J. Hassard, A. Silverman, R. S. Panvini, D. Peterson, Ian Brock, Thomas Ferguson, R. Kowalewski, M. Hempstead, H. Kagan, R. DeSalvo, T. Jensen, M. Goldberg, G. C. Moneti, E. Nordberg, R. S. Galik, N. Horwitz, D. L. Kreinick, Y. Kubota, M. Ogg, S. E. Csorna, N. B. Mistry, A. J. Sadoff, E. Blucher, R. Namjoshi, P. Haas, Murdock Gilchriese, B. Gittelman, D. Xiao, M. Ito, R.B. Sutton, F. Morrow, Hans J. Vogel, R. T. Giles, K. Kinoshita, C. Rosenfeld, M. S. Alam, G. B. Word, Paul Tipton, L. Garren, Daniela Bortoletto, J. W. Dewire, D. Besson, D. L. Hartill, T. Gentile, Xia Yi, G. J. Bobbink, James Mueller, V. Sharma, R. Ehrlich, V. Tanikella, and A. M. Halling

Subjects
Physics, Meson, Branching fraction, Electron–positron annihilation, Hadron, Quark model, Mass spectrum, Analytical chemistry, B meson, Elementary particle
Abstract

We have measured the inclusive branching ratio for B..-->..psiX to be (1.09 +- 0.16 +- 0.21)%, and the exclusive branching ratios for B/sup -/..-->..psiK/sup -/ and B-bar /sup 0/..-->..psiK-bar /sup *//sup 0/ to be (0.09 +- 0.05)% and (0.41 +- 0.18)%, respectively. The mass difference between neutral and charged B mesons is 1.1 +- 2.1 MeV, while the difference between the mass of UPSILON(4S) and twice the mean B-meson mass is 18.5 +- 3.0 MeV. The psi momentum distribution implies a substantial two-body decay (in agreement with direct measurements), but also some combination of B..-->..psiX with M/sub X/>1.5 GeV, and B..-->..psi'X.

Published
1986

49. Production ofηandωmesons inτdecay and a search for second-class currents

Author

F. Morrow, E. I. Shibata, T. Letson, J. W. Dewire, S. Holzner, B. K. Heltsley, E. Blucher, T. Jensen, R. Holmes, M. G D Gilchriese, C. R. Sun, Kenneth Francis Read, D. L. Kreinick, J. Kandaswamy, D. Peterson, V. Sharma, J. Mueller, D. Xiao, Joan A. Guida, D. Perticone, A. J. Sadoff, Ian Shipsey, Weiran Li, S. E. Csorna, D. Besson, A. M. Halling, S. Stone, R. Kowalewski, C. Bebek, D. Bortoletto, E. Nordberg, R. Desalvo, M. S. Alam, H. Vogel, R. Ehrlich, T. Bowcock, T. Ferguson, X. C. Lou, P. Lubrano, F. M. Pipkin, A. Bean, R. D. Kass, R. S. Panvini, T. Copie, M. D. Mestayer, K. Berkelman, P. Tipton, G. C. Moneti, M. Goldberg, L. Garren, N. Horwitz, Stephen W. Gray, D. Riley, K. Kinoshita, Richard S. Galik, A. Silverman, A. Jawahery, P. Avery, J. Wolinski, H. Kagan, D. G. Cassel, V. Tanikella, I. C. Brock, S. Behrends, Richard K. Wilson, P. Haas, D. H. Miller, B. Gittelman, D. L. Hartill, A. Engler, P. Thoma, G. J. Bobbink, G. B. Word, M. Procario, R. Namjoshi, I. J. Kim, P. Baringer, R. Poling, E. H. Thorndike, R. W. Kraemer, Jan M. Guida, Y. Kubota, C. Rippich, M. Pisharody, Nari B. Mistry, R. L. McIlwain, N. Katayama, and M. Hempstead

Subjects
Semileptonic decay, Physics, Particle decay, Particle physics, Meson, Branching fraction, Hadron, General Physics and Astronomy, Dalitz plot, High Energy Physics::Experiment, Nuclear Experiment, Omega, Lepton
Abstract

The production of eta and ..omega.. mesons in tau decay has been studied with the CLEO detector. A sample of 42 000 e/sup +/e/sup -/..-->..tau/sup +/tau/sup -/ events at a mean ..sqrt..s of 10.5 GeV is used in the analysis. The branching ratio B(tau/sup -/..--> omega pi../sup -/..nu../sub tau/) is measured to be (1.60 +- 0.27 +- 0.41)%. No signal for eta production from tau decay is observed, resulting in 95%-confidence-level upper limits of 1.8% for B(tau/sup -/..-->..eta..pi../sup -/..nu../sub tau/), 2.1% for B(tau/sup -/..-->..eta..pi../sup -/..pi../sup 0/..nu../sub tau/), and 2.1% for inclusive eta production in tau decay. No evidence is found for decays proceeding via second-class currents.

Published
1987

50. Investigation of the total charm-pair cross section in nonresonante+e−annihilations at√s =10.5GeV

Author

Ian Shipsey, C. Bebek, E. Nordberg, J. Wolinski, A. Silverman, M. Goldberg, M. Pisharody, Karl Berkelman, S. E. Csorna, V. Tanikella, K. Kinoshita, D. Perticone, T. Copie, I. J. Kim, F. M. Pipkin, A. M. Halling, L. Garren, J. D. Lewis, D. L. Kreinick, M. Worris, N. Horwitz, E. Blucher, D. H. Miller, R. Namjoshi, R. DeSalvo, T. J. V. Bowcock, B. Gittelman, D. R. Johnson, G. C. Moneti, C. R. Sun, R. D. Kass, A. Jawahery, E. I. Shibata, J. Kandaswamy, D. L. Hartill, R. Holmes, Xinchou Lou, C. Ray Ng, S. Nandi, S. W. Gray, D. M. Coffman, D. Peterson, M. Procario, B. K. Heltsley, F. Morrow, D. G. Cassel, D. Riley, Ian Brock, Sheldon Stone, D. Xiao, R. Kowalewski, Paul Avery, W. C. Li, N. B. Mistry, M. Hempstead, T. Jensen, Thomas Ferguson, Hans J. Vogel, N. Katayama, Richard Wilson, R. S. Galik, Y. Kubota, P. Haas, M. D. Mestayer, R. L. McIlwain, D. Besson, P. Baringer, Daniela Bortoletto, J. W. Dewire, M. S. Alam, H. Kagan, J. Byrd, A. J. Sadoff, Ron Poling, James Mueller, V. Sharma, and R. Ehrlich

Subjects
Nuclear physics, Hadronic decay, Physics, Particle physics, Meson, Electron–positron annihilation, Hadron, Elementary particle, Boson
Abstract

We report results from two new methods for measuring the total production of charmed particles in nonresonant e/sup +/e/sup -/ annihilations at ..sqrt..s = 10.5 GeV. The rate for detection of events containing two reconstructed charmed mesons relative to that for events containing one is used to extract information about total charm production independent of decay branching fractions. The value of ..delta..R/sub c//sub c-bar/, the total charm-pair cross section normalized to the pointlike ..mu..-pair cross section, is found to be 1.13/sub -0.13//sup +0.17/ +- 0.09, under an assumption of limited particle correlations. In an independent analysis the inclusive cross section for e/sup +/e/sup -/..-->..qq-bar..-->..e/sup +- /X is measured to be 0.293 +- 0.017 +- 0.017 nb. Using measured relative production rates and semileptonic branching fractions of D/sup 0/ and D/sup +/ mesons and estimates of these quantities for D/sub s/ and ..lambda../sub c/, this is found to correspond to ..delta..R/sub c//sub c-bar/ = 2.07 +- 0.12 +- 0.26. These two measurements are discussed in the context of measurements made by reconstruction of exclusive hadronic decay modes and of theoretical expectations.

Published
1988

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