Search

Your search keyword '"E. H. Low"' showing total 107 results
Start Over Author "E. H. Low"
107 results on '"E. H. Low"'

1. NEW RESULTS FROM BHABHA SCATTERING AT 29 GEV

Author

A. A. Seidl, P. Kesten, B. B. Brabson, C. R. Ng, D.S. Koltick, N. Harnew, F. J. Loeffler, M. Derrick, B. G. Bylsma, C. K. Jung, E. H. Low, R. P. Thun, D. H. Miller, M. Willutzky, J.M. Weiss, D. Nitz, R. Debonte, G. Bonvicini, L. E. Price, D. E. Wood, H. A. Neal, S. W. Gray, D. I. Meyer, D. Errede, J. W. Chapman, J. S. Loos, L. K. Rangan, T. Trinko, P. Kooijman, K. K. Gan, Carl W. Akerlof, P. Baringer, Harold Ogren, D. Blockus, M. Valdata-Nappi, E. I. Shibata, I. Beltrami, R. L. McIlwain, S. Abachi, J. Schlereth, B. Musgrave, B. Cork, K. Sugano, and D. R. Rust

Subjects
Physics, Nuclear physics, Nuclear and High Energy Physics, Particle physics, Range (particle radiation), Partial width, High Energy Physics::Experiment, Polar coordinate system, Bhabha scattering, Boson
Abstract

Results are reported on a high statistics study of Bhabha scattering at 29 GeV in the polar angle region, |cos θ| < 0.55. The data are consistent with the standard model, and measure vector and axial-vector coupling constants of gv2 = 0.03 ± 0.09 and ga2 = 0.46±0.14. Limits on the QED-cutoff parameters are Λ+ > 154 GeV and Λ- > 220 GeV. Lower limits on scale parameters of composite models are in the range 0.9-2.8 TeV. The partial width of a hypothetical spin-zero boson decaying to e+e- has an upper limit which varies from 6 to 57 MeV corresponding to a boson mass in the range 45-80 GeV/c2. © 1986.

Published
2016

2. RAPIDITY DEPENDENCE OF THE CHARGED-PARTICLE MULTIPLICITY DISTRIBUTIONS IN E+E- ANNIHILATION AT 29 GEV

Author

M. Willutzky, Harold Ogren, C. R. Ng, D. E. Wood, P. Kooijman, D. I. Meyer, R. P. Thun, B. G. Bylsma, D. H. Miller, D. R. Rust, J. Schlereth, S. W. Gray, D.S. Koltick, R. Debonte, D. Nitz, J. W. Chapman, H. A. Neal, R. L. McIlwain, S. Abachi, D. Errede, C. K. Jung, A. A. Seidl, N. Harnew, P. Kesten, B. Musgrave, F. J. Loeffler, B. Cork, Carl W. Akerlof, B. B. Brabson, K. Sugano, M. Derrick, E. H. Low, G. Bonvicini, L. E. Price, L. K. Rangan, J.M. Weiss, K. K. Gan, T. Trinko, J. S. Loos, D. Blockus, P. Baringer, I. Beltrami, M. Valdata-Nappi, and E. I. Shibata

Subjects
Physics, Nuclear physics, Nuclear and High Energy Physics, Particle physics, Annihilation, Spectrometer, Electron–positron annihilation, Negative binomial distribution, Multiplicity (mathematics), Rapidity, Scaling, Charged particle
Abstract

The charged particle multiplicity distribution for e+e− annihilations at s = 29 GeV has been measured using the High Resolution Spectrometer at PEP. The multiplicity distribution, expressed as a function of the mean, shows KNO scaling when compared to e+e− data at other energies. Multiplicity distributions for particles selected in different central rapidity spans are presented. All of these are well presented by the Negative binomial distribution. As the rapidity span is narrowed, the distributions become broader and approach a constant value of the parameter k.

Published
2016

3. Neutral K*(890) and ρ0 meson production in e+e- annihilation at ;s=29GeV

Author

D. H. Miller, J. W. Chapman, J. Schlereth, M. Willutzky, I. Beltrami, D. E. Wood, D. Errede, E. I. Shibata, M. Valdata-Nappi, M. Derrick, K. K. Gan, P. Kesten, E. H. Low, R. L. McIlwain, S. Abachi, D. R. Rust, N. Harnew, R. Debonte, R. P. Thun, J. S. Loos, B. B. Brabson, D. Blockus, H. O. Ogren, F. J. Loeffler, C. K. Jung, G. Bonvicini, L. E. Price, B. Cork, J.M. Weiss, D. I. Meyer, L. K. Rangan, S. W. Gray, B. G. Bylsma, T. Trinko, P. Kooijman, K. Sugano, B. Musgrave, P. Baringer, H. A. Neal, D. Nitz, A. A. Seidl, Carl W. Akerlof, C. R. Ng, and D.S. Koltick

Subjects
Physics, Nuclear and High Energy Physics, Particle physics, Annihilation, Meson, Spectrometer, High Energy Physics::Lattice, High Energy Physics::Phenomenology, Nuclear Theory, Pseudoscalar meson, Charm quark, Nuclear physics, Momentum, High Energy Physics::Experiment, Vector meson, Nuclear Experiment, Event (particle physics)
Abstract

The production of neutral K∗(890) and ρ0 mesons was studied in e+e− annihilation at s =29 GeV using the High Resolution Spectrometer at PEP. Differential cross sections are presented as a function of the scaled energy variable z and compared to π0 and K0 production. The measured multiplicities are 0.84±0.08 ϱ0 mesons and 0.57±0.09 K ∗0 (890) mesons per event for a meson momentum greater than 725 MeV/c. The ratios of vector meson to pseudoscalar meson production for (u,d), s and c quark are compared to predictions of the Lund model.

Published
2016

4. INCLUSIVE CHARGED-PARTICLE PRODUCTION NEAR THE KINEMATIC LIMIT IN E+E- ANNIHILATION AT 29 GEV

Author

M. Derrick, D. Nitz, K. K. Gan, B. G. Bylsma, E. H. Low, D. Errede, B. Cork, C. R. Ng, D.S. Koltick, H. A. Neal, G. Bonvicini, L. E. Price, N. Harnew, L. K. Rangan, J.M. Weiss, B. B. Brabson, K. Sugano, S. W. Gray, J. W. Chapman, Harold Ogren, P. Baringer, D. R. Rust, F. J. Loeffler, P. Kesten, A. A. Seidl, C. K. Jung, T. Trinko, M. Valdata-Nappi, D. I. Meyer, I. Beltrami, P. Kooijman, R. P. Thun, E. I. Shibata, J. S. Loos, D. Blockus, R. Debonte, Carl W. Akerlof, D. H. Miller, J. Schlereth, M. Willutzky, D. E. Wood, R. L. McIlwain, S. Abachi, and B. Musgrave

Subjects
Nuclear physics, Physics, Nuclear and High Energy Physics, Particle physics, Range (particle radiation), Annihilation, Spectrometer, Cluster (physics), Lund string model, High Energy Physics::Experiment, Kinematics, Limit (mathematics), Charged particle
Abstract

Inclusive production of charged particles has been studied in e+e- annihilation at ss=29 GeV using the high resolution spectrometer at PEP. Differential cross sections are presented in the range of scaled energy 0.1

Published
2016

5. COMPARISON OF LIGHT QUARK AND CHARM QUARK FRAGMENTATION

Author

B. Musgrave, C. K. Jung, D. H. Miller, J. Schlereth, M. Derrick, E. H. Low, M. Valdata-Nappi, G. Bonvicini, L. E. Price, R. Debonte, S. W. Gray, J. S. Loos, J. W. Chapman, L. K. Rangan, Harold Ogren, P. Kooijman, D. Errede, M. Willutzky, P. Baringer, C. R. Ng, D. E. Wood, N. Harnew, Carl W. Akerlof, K. K. Gan, D. I. Meyer, J.M. Weiss, R. P. Thun, B. B. Brabson, T. Trinko, R. L. McIlwain, S. Abachi, D. Blockus, I. Beltrami, E. I. Shibata, F. J. Loeffler, B. G. Bylsma, H. A. Neal, A. A. Seidl, B. Cork, K. Sugano, D. R. Rust, P. Kesten, and D. Nitz

Subjects
Quark, Physics, Nuclear and High Energy Physics, Particle physics, Top quark, Down quark, Bottom quark, Charm quark, Nuclear physics, Quark star, Up quark, High Energy Physics::Experiment, B meson, Nuclear Experiment
Abstract

Separate samples of charm quark and light quark (u, d, s) jets have been isolated in an experiment studying e+e− annihilations at s = 29 GeV . The results come from data corresponding to an integrated luminosity of 111 pb−1 collected by the High Resolution Spectrometer. Differences were observed in charged multiplicities, momentum distributions, and rapidity of the size expected from the different fragmentation functions and leading particle decay properties of the two samples.

Published
2016

6. Neuropilin-1 Participates in Wound Angiogenesis

Author

Annette M. Matthies, Luisa A. DiPietro, Mark W. Lingen, and Quentin E. H. Low

Subjects
Vascular Endothelial Growth Factor A, Pathology, medicine.medical_specialty, Angiogenesis, medicine.medical_treatment, Neovascularization, Physiologic, Nerve Tissue Proteins, Endothelial Growth Factors, Biology, Pathology and Forensic Medicine, Mice, chemistry.chemical_compound, Growth factor receptor, Neuropilin 1, medicine, Animals, Protein Isoforms, Receptors, Growth Factor, Tissue Distribution, RNA, Messenger, Cells, Cultured, Skin, Lymphokines, Mice, Inbred BALB C, Wound Healing, Vascular Endothelial Growth Factors, Receptor Protein-Tyrosine Kinases, Immunohistochemistry, Neuropilin-1, Vascular endothelial growth factor, Endothelial stem cell, Vascular endothelial growth factor A, Receptors, Vascular Endothelial Growth Factor, Cytokine, chemistry, cardiovascular system, Cancer research, Wounds and Injuries, Female, Wound healing, Regular Articles
Abstract

Angiogenesis, the formation of new capillaries from existing vasculature, plays an essential role in tissue repair. The rapid onset and predominance of proangiogenic factors optimizes healing in damaged tissues. One factor that directly mediates wound vessel angiogenesis is vascular endothelial growth factor (VEGF). Although much is known about the biology of VEGF and its cognate receptors, VEGFR1 and VEGFR2, the role of a recently identified co-receptor for VEGF, neuropilin-1, is not well understood. Using a murine model of dermal wound repair, we found that neuropilin-1 was abundantly expressed on new vasculature in healing wounds. Moreover, mice treated with anti-neuropilin-1 antibodies exhibited a significant decrease in vascular density within these wounds (67% decrease, P = 0.0132). In in vitro assays, VEGF induced formation of endothelial cord-like structures on collagen gel and endothelial cell migration toward VEGF was inhibited by antibodies directed against neuropilin-1. These results provide both in vitro and in vivo evidence for a critical role of neuropilin-1 in wound angiogenesis.

Published
2002

7. Limits onWWZandWWγCouplings frompp¯→eνjjXEvents ats}=1.8TeV

Author

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

Subjects
Physics, Coupling, Particle physics, Luminosity (scattering theory), High Energy Physics::Phenomenology, Tevatron, General Physics and Astronomy, Electron, Lambda, law.invention, Nuclear physics, law, Transverse momentum, High Energy Physics::Experiment, Fermilab, Neutrino, Collider
Abstract

We present limits on anomalous WWZ and WW-gamma couplings from a search for WW and WZ production in p-bar p collisions at sqrt(s)=1.8 TeV. We use p-bar p -> e-nu jjX events recorded with the D0 detector at the Fermilab Tevatron Collider during the 1992-1995 run. The data sample corresponds to an integrated luminosity of 96.0+-5.1 pb^(-1). Assuming identical WWZ and WW-gamma coupling parameters, the 95% CL limits on the CP-conserving couplings are -0.33

Published
1997

8. 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

9. Measurement ofσB(W→eν)andσB(Z0→e+e−)inpp¯Collisions at√s=1.8TeV

Author

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

Subjects
Nuclear physics, Physics, Luminosity (scattering theory), Proton, Antiproton, law, Physics::Accelerator Physics, General Physics and Astronomy, Sigma, High Energy Physics::Experiment, Collider, Collider Detector at Fermilab, law.invention
Abstract

We present a measurement of $\sigma \cdot B(W \to e \nu)$ and $\sigma \cdot B(Z^0 \to e^+e^-)$ in proton - antiproton collisions at $\sqrt{s} =1.8$ TeV using a significantly improved understanding of the integrated luminosity. The data represent an integrated luminosity of 19.7 pb$^{-1}$ from the 1992-1993 run with the Collider Detector at Fermilab (CDF). We find $\sigma \cdot B(W \to e \nu) = 2.49 \pm 0.12$~nb and $\sigma \cdot B(Z^0 \to e^+e^-) = 0.231 \pm 0.012$~nb.

Published
1996

10. Search for the Rare DecayW±→π±+γ

Author

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

Subjects
Physics, Particle physics, Text mining, business.industry, General Physics and Astronomy, business
Published
1996

11. Measurement of the mass of theBs0meson

Author

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

Subjects
Physics, Statistics::Theory, Nuclear and High Energy Physics, Particle physics, Statistics::Applications, Meson, High Energy Physics::Experiment, Mass measurement, Collider Detector at Fermilab
Abstract

We measure the mass of the ${\mathit{B}}_{\mathit{s}}^{0}$ meson by reconstructing the decay chain ${\mathit{B}}_{\mathit{s}}^{0}$\ensuremath{\rightarrow}J/\ensuremath{\psi}\ensuremath{\varphi}, J/\ensuremath{\psi}\ensuremath{\rightarrow}${\mathrm{\ensuremath{\mu}}}^{+}$${\mathrm{\ensuremath{\mu}}}^{\mathrm{\ensuremath{-}}}$, and \ensuremath{\varphi}\ensuremath{\rightarrow}${\mathit{K}}^{+}$${\mathit{K}}^{\mathrm{\ensuremath{-}}}$. The data are obtained from 19.3 ${\mathrm{pb}}^{\mathrm{\ensuremath{-}}1}$ of integrated luminosity of p\ifmmode\bar\else\textasciimacron\fi{}p collisions at \ensuremath{\surd}s=1.8 TeV using the Collider Detector at Fermilab. A sample of 80 000 inclusive J/\ensuremath{\psi}\ensuremath{\rightarrow}${\mathrm{\ensuremath{\mu}}}^{+}$${\mathrm{\ensuremath{\mu}}}^{\mathrm{\ensuremath{-}}}$ events is used to study systematic biases in track reconstruction and to calibrate the momentum scale. We reconstruct the kinematically similar decays ${\mathit{B}}^{+}$\ensuremath{\rightarrow}J/\ensuremath{\psi}${\mathit{K}}^{+}$ and ${\mathit{B}}^{0}$\ensuremath{\rightarrow}J/\ensuremath{\psi}${\mathit{K}}^{\mathrm{*}0}$ to study the mass measurement technique used for the ${\mathit{B}}_{\mathit{s}}^{0}$ meson. Based on the observation of 32 \ifmmode\pm\else\textpm\fi{} 6 candidates, the mass of the ${\mathit{B}}_{\mathit{s}}^{0}$ meson is measured to be 5369.9 \ifmmode\pm\else\textpm\fi{} 2.3 \ifmmode\pm\else\textpm\fi{} 1.3 MeV/${\mathit{c}}^{2}$ and the mass difference between ${\mathit{B}}_{\mathit{s}}^{0}$ and the average mass of ${\mathit{B}}^{+}$ and ${\mathit{B}}^{0}$ is determined to be 89.7 \ifmmode\pm\else\textpm\fi{} 2.7 \ifmmode\pm\else\textpm\fi{} 1.2 MeV/${\mathit{c}}^{2}$. \textcopyright{} 1996 The American Physical Society.

Published
1996

12. Reconstruction ofB0→J/ψKS0and Measurement of Ratios of Branching Ratios InvolvingB→J/ψK*andB+→J/ψK+

Author

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

Subjects
Physics, Crystallography, Meson, Branching fraction, General Physics and Astronomy, High Energy Physics::Experiment, Branching (polymer chemistry), Collider Detector at Fermilab, Bar (unit)
Abstract

We report on the reconstruction of the decay mode B{sup 0o} {yields} J/{psi}K{sup 0}{sub s} using 19.3 pb{sup -1} of data collected by the Collider Detector at Fermilab in p{bar p} collisions at sqrt[s] = 1.8 TeV. A signal of 41.8{+-}6.9 events, with a signal-to-background ratio of 9:1, is observed. Three additional decay modes B{sup +} {yields} J/{psi}K{sup +}, B{sup 0} {yields} J/{psi}K{sup *}(892){sup 0}, and B{sup +} {yields} J/{psi}K{sup *}(892){sup +} are reconstructed. We measure three ratios of branching ratios, each one relative to the B{sup +} {yields} J/{psi}K{sup +} mode. We also report the ratio of decay rates, {gamma}(B {yields} J/{psi}K{sup *})/{gamma}(B {yields} J/{psi}K), for the vector-vector relative to the vector-pseudoscalar modes, to be 1.32{+-}0.23(stat){+-}0.16(syst).

Published
1996

13. ϒProduction inpp¯Collisions ats=1.8TeV

Author

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

Subjects
Physics, Quantum chromodynamics, Particle physics, General Physics and Astronomy, Order (ring theory), High Energy Physics::Experiment, Collider Detector at Fermilab
Abstract

We report on measurements of the $\ensuremath{\Upsilon}(1S)$, $\ensuremath{\Upsilon}(2S)$, and $\ensuremath{\Upsilon}(3S)$ differential, ${(\frac{{d}^{2}\ensuremath{\sigma}}{d{P}_{t}\mathrm{dy}})}_{y=0}$, and integrated cross sections in $p\overline{p}$ collisions at $\sqrt{s}=1.8$ TeV using a sample of 16.6 \ifmmode\pm\else\textpm\fi{} 0.6 ${\mathrm{pb}}^{\ensuremath{-}1}$ collected by the Collider Detector at Fermilab. The three resonances were reconstructed through the decay $\ensuremath{\Upsilon}\ensuremath{\rightarrow}{\ensuremath{\mu}}^{+}{\ensuremath{\mu}}^{\ensuremath{-}}$. Comparison is made to a leading order QCD prediction.

Published
1995

14. Measurement of the Polarization in the DecaysBd→J/ψK*0andBs→J/ψφ

Author

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

Subjects
Physics, Crystallography, Meson, General Physics and Astronomy, Polarization (waves), Collider Detector at Fermilab
Abstract

This Letter reports on measurements of the longitudinal polarization fractions in the decays {ital B}{sub {ital d}}{r_arrow}{ital J}/{psi}{ital K}{sup *0} and {ital B}{sub {ital s}}{r_arrow}{ital J}/{psi}{phi} using data collected with the Collider Detector at Fermilab. {ital B}{sub {ital d}} mesons are reconstructed through the decay chain {ital B}{sub {ital d}}{r_arrow}{ital J}/{psi}{ital K}*, {ital J}/{psi}{r_arrow}{mu}{sup +}{mu}{sup {minus}}, {ital K}{sup *0}{r_arrow}{ital K}{sup +}{pi}{sup {minus}}. A sample of 65{plus_minus}10{ital B}{sub {ital d}} events is used to obtain a longitudinal polarization fraction of {Gamma}{sub {ital L}}/{Gamma}=0.65{plus_minus}0.10(stat){plus_minus}0.04(syst). {ital B}{sub {ital s}} mesons are reconstructed through the decay chain {ital B}{sub {ital s}}{r_arrow}{ital J}/{psi}{phi}, {ital J}/{psi}{r_arrow}{mu}{sup +}{mu}{sup {minus}}, {phi}{r_arrow}{ital K}{sup +}{ital K}{sup {minus}}. A sample of 19{plus_minus}5{ital B}{sub {ital s}} events is used to obtain the result {Gamma}{sub {ital L}}/{Gamma}=0.56{plus_minus}0.21(stat){sub {minus}0.04}{sup +0.02}(syst). Copyright {ital 1995} {ital The} {ital American} {ital Physical} {ital Society}.

Published
1995

15. Measurement of the ratio σB(pp¯→W→eν)/σB(pp¯→Z0→ee) inpp¯collisions at √s=1800 GeV

Author

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

Subjects
Physics, Gauge boson, Particle physics, Lower limit
Published
1995

16. 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

17. Search for Second Generation Leptoquarks inpp¯Collisions ats=1.8TeV

Author

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

Subjects
Physics, Particle physics, Muon, Pair production, Branching fraction, General Physics and Astronomy, Elementary particle, Leptoquark, Collider Detector at Fermilab, Particle identification, Lepton
Abstract

We present the results of a search for second generation leptoquarks ${S}_{2}$ using $19.3{\mathrm{pb}}^{\ensuremath{-}1}$ of data collected at the Collider Detector at Fermilab (CDF) in $p\overline{p}$ collisions at $\sqrt{s}\phantom{\rule{0ex}{0ex}}=\phantom{\rule{0ex}{0ex}}1.8$ TeV during the 1992--93 collider run. We have searched for ${S}_{2}\overline{{S}_{2}}$ pairs assuming that each leptoquark decays to a muon $+$ quark with a branching ratio $\ensuremath{\beta}$. We find two candidate events, consistent with an expected background of $1.11\ifmmode\pm\else\textpm\fi{}0.48$. We obtain upper limits on $\ensuremath{\sigma}(p\overline{p}\ensuremath{\rightarrow}{S}_{2}\overline{{S}_{2}}){\ensuremath{\beta}}^{2}$ as a function of ${M}_{{S}_{2}}$. Using a Monte Carlo prediction for ${S}_{2}\overline{{S}_{2}}$ pair production, we exclude ${M}_{{S}_{2}}l131\phantom{\rule{0ex}{0ex}}\mathrm{GeV}/{c}^{2}$ for $\ensuremath{\beta}\phantom{\rule{0ex}{0ex}}=\phantom{\rule{0ex}{0ex}}1$ and ${M}_{{S}_{2}}l96\phantom{\rule{0ex}{0ex}}\mathrm{GeV}/{c}^{2}$ for $\ensuremath{\beta}\phantom{\rule{0ex}{0ex}}=\phantom{\rule{0ex}{0ex}}0.5$ at 95% C.L.

Published
1995

18. Search for Squarks and Gluinos via Radiative Decays of Neutralinos in Proton-Antiproton Collisions at√s=1.8TeV

Author

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

Subjects
Physics, Quantum chromodynamics, Particle physics, Gluino, Computer Science::Information Retrieval, High Energy Physics::Phenomenology, General Physics and Astronomy, Superpartner, Supersymmetry, Particle identification, Gluon, Nuclear physics, Antiproton, High Energy Physics::Experiment, Nuclear Experiment, Energy (signal processing)
Abstract

We have sought evidence for radiative decays of neutralinos produced in proton-antiproton collisions at {radical}{ital s}=1.8TeV. Events containing two photons plus large missing transverse energy were investigated. The observed event rate and the missing transverse energy distribution of the two-photon events are consistent with QCD predictions. Inferred limits on squark and gluino masses depend on the supersymmetry model parameters. The particular choices {mu}={minus}40GeV/{ital c}{sup 2} and tan{beta}=1.5 lead to 90%-confidence-level asymptotic lower limits of 110 GeV/{ital c}{sup 2} and 140 GeV/{ital c}{sup 2} for squarks and gluinos, respectively.

Published
1995

19. Search for Charged Bosons Heavier than theWBoson inpp¯Collisions ats=1800GeV

Author

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

Subjects
Physics, Particle physics, Mathematics::Number Theory, Computer Science::Information Retrieval, General Physics and Astronomy, Elementary particle, Fermion, Particle identification, Massless particle, Particle decay, High Energy Physics::Experiment, Collider Detector at Fermilab, Lepton, Boson
Abstract

We have searched for new, heavy, charged bosons {ital W}{prime} through the decay {ital W}{prime}{r_arrow}{ital e}{nu} in {ital pp}{ovr bar} collisions at {radical}{ital s}=1.8 TeV. The data used in the search represent 19.7 pb{sup --1}collected by the Collider Detector at Fermilab. Limits are placed on {sigma}{ital B}({ital pp}{ovr bar}{r_arrow}{ital W}{prime}{r_arrow}{ital e}{nu}) as a function of {ital M}{sub {ital W}{prime}}. Assuming standard couplings of the {ital W}{prime} to fermions, we establish the limit {ital M}{sub {ital W}{prime}}{gt}652 GeV/{ital c}{sup 2} (95% C.L.).

Published
1995

20. Charge Asymmetry inW-Boson Decays Produced inpp¯Collisions ats=1.8TeV

Author

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

Subjects
Quark, Nuclear physics, Physics, Particle decay, Particle physics, Tevatron, General Physics and Astronomy, Elementary particle, Charge (physics), Parton, Collider Detector at Fermilab, Boson
Abstract

Charge asymmetry has been measured using 19 039 [ital W] decays recorded by the Collider Detector at Fermilab during the 1992--93 run of the Tevatron Collider. The asymmetry is sensitive to the ratio of [ital d] and [ital u] quark distributions to [ital x][lt]0.01 at [ital Q][sup 2][approx][ital M][sup 2][sub [ital W]], where nonperturbative effects are minimal. It is found that of the two current sets of parton distributions, those of Martin, Roberts, and Stirling are favored over the sets most recently produced by the CTEQ Collaboration. The [ital W] asymmetry data provide stronger constraints on [ital d]/[ital u] ratio than the recent measurements of [ital F][sub 2][sup [mu][ital n]]/[ital F][sub 2][sup [mu][ital p]], which are limited by uncertainties originating from deuteron corrections.

Published
1995

21. 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

22. Search for the Top Quark Decaying to a Charged Higgs Boson inp¯pCollisions ats=1.8TeV

Author

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

Subjects
Physics, Particle decay, Top quark, Particle physics, Branching fraction, Higgs boson, General Physics and Astronomy, Collider Detector at Fermilab
Abstract

We present the results of a search in [ital [bar p]] [ital p] collisions at [radical][ital s] =1.8 TeV for the top quark decaying to a charged Higgs bosson ([ital H][sup [plus minus]]). We search for dilepton final states from the decay chain [ital t] [ital [bar t]][r arrow][ital HH] (or [ital HW], or [ital WW])+[ital b] [ital [bar b]][r arrow][ital ll]+[ital X]. In a sample of 19.3 pb[sup [minus]1] collected during 1992--93 with the Collider Detector at Fermilab, we observe 2 events with a background estimation of 3.0[plus minus]1.0 events. Limits at 95% C.L. in the (M[sub top],M[sub [ital H][sup [plus minus]]]) plane are presented. For the case [ital M][sub top][lt][ital M][sub [ital W]]+[ital M][sub [ital b]], we exclude at 95% C.L. the entire ([ital M][sub top],[ital M][sub H[plus minus]]) plane for the branching ratio [ital B]([ital H][r arrow][tau][nu]) larger than 75%. We also interpret the results in terms of the parameter tan[beta] of two-Higgs-doublet models.

Published
1994

23. Evidence for color coherence inpp¯collisions at √s=1.8 TeV

Author

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

Subjects
Quantum chromodynamics, Physics, Particle physics, Physics and Astronomy (miscellaneous), Mathematical model, Physics::Instrumentation and Detectors, Monte Carlo method, Detector, Tevatron, Perturbative QCD, Nuclear physics, Physics::Accelerator Physics, High Energy Physics::Experiment, Fermilab, Coherence (physics)
Abstract

Color coherence effects in pp\ifmmode\bar\else\textasciimacron\fi{} collisions are observed and studied with CDF, the Collider Detector at the Fermilab Tevatron collider. We demonstrate these effects by measuring spatial correlations between soft and leading jets in multijet events. Variables sensitive to interference are identified by comparing the data to the predictions of various shower Monte Carlo programs that are substantially different with respect to the implementation of coherence.

Published
1994

24. WBoson + Jet Angular Distribution inpp¯Collsions ats=1.8TeV

Author

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

Subjects
Physics, Particle physics, Jet (fluid), Photon, Computer Science::Information Retrieval, Monte Carlo method, Tevatron, General Physics and Astronomy, Elementary particle, Particle detector, Nuclear physics, High Energy Physics::Experiment, Collider Detector at Fermilab, Boson
Abstract

The [ital W]+jet angular distribution is measured using [ital W][minus][gt][ital e][nu] events recorded with the Collider Detector at Fermilab (CDF) during 1988--89 and 1992--93 Tevatron runs. The data agree well with both a leading order and a next-to-leading order theoretical prediction. The shape of the angular distribution is similar to that observed in photon+jet data, and significantly different from that observed in dijet data.

Published
1994

25. 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

26. Measurement of Drell-Yan electron and muon pair differential cross sections inp¯pcollisions ats=1.8TeV

Author

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

Subjects
Quantum chromodynamics, Physics, Nuclear physics, Particle physics, Muon, Pair production, Drell–Yan process, Interval (graph theory), Elementary particle, Parton, Lepton
Abstract

We measure the Drell-Yan differential cross section [ital d][sup 2][sigma]/[ital dM] d[ital y][vert bar][sub [vert bar][ital y][vert bar][lt]1] over the mass range 11[lt][ital M][lt]150 GeV/[ital c][sup 2] using dielectron and dimuon data from [ital [bar p]p] collisions at a center-of-mass energy of [radical][ital s] =1.8 TeV. Our results show the 1/[ital M][sup 3] dependence that is expected from the naive Drell-Yan model. In comparison to the predictions of recent QCD calculations we find our data favor those parton distribution functions with the largest quark contributions in the [ital x] interval 0.006 to 0.03.

Published
1994

27. Search for first-generation leptoquarks inp¯pcollisions ats=1.8TeV

Author

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

Subjects
Physics, Particle decay, High energy, Particle physics, Coupling strength, Branching fraction, Signal region, Leptoquark, Lambda, First generation
Abstract

We present results of a search for a first-generation leptoquark [ital scrS][sub 1] in [ital [bar p]p] collisions at [radical][ital s] =1.8 TeV at the Fermilab Tevatron. Using 4.05 pb[sup [minus]1] of data collected during the 1988--1989 CDF run, we have searched for evidence of [ital scrS][sub 1][ital scr[bar S]1] production assuming that each leptoquark decays to an electron+quark pair with a branching ratio [beta]. Three events with two high energy electrons and two high energy jets were found, but are consistent with [ital Z][sup 0] decay. No events were found in the signal region. Assuming a short lived scalar leptoquark with Yukawa coupling strength [lambda][approx gt]2[times]10[sup [minus]7], we exclude [sigma][beta][sup 2][gt]55(4.0) pb at 95% C.L. for [ital M][sub [ital s][ital c][ital r][ital S]]=45(125) GeV/[ital c][sup 2]. Using a Monte Carlo prediction for [sigma]([ital [bar p]p][r arrow][ital scrS][sub 1][ital scr[bar S]1]+[ital X]), we exclude [ital M][sub [ital s][ital c][ital r][ital S]][lt]113(80) GeV/[ital c][sup 2] for [beta]=100(50)%.

Published
1993

28. Inclusiveχcandb-quark production inp¯pcollisions at √s=1.8 TeV

Author

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

Subjects
Physics, Statistics::Theory, Particle physics, Statistics::Applications, Branching fraction, General Physics and Astronomy, Sigma baryon, Xi baryon, J/psi meson, Particle decay, Pseudorapidity, High Energy Physics::Experiment, Production (computer science), Collider Detector at Fermilab
Abstract

We report the full reconstruction of ${\mathrm{\ensuremath{\chi}}}_{\mathit{c}}$ mesons through the decay chain ${\mathrm{\ensuremath{\chi}}}_{\mathit{c}}$\ensuremath{\rightarrow}J/\ensuremath{\psi} \ensuremath{\gamma}, J/\ensuremath{\psi}\ensuremath{\rightarrow}${\mathrm{\ensuremath{\mu}}}^{+}$${\mathrm{\ensuremath{\mu}}}^{\mathrm{\ensuremath{-}}}$, using data obtained at the Collider Detector at Fermilab in 2.6\ifmmode\pm\else\textpm\fi{}0.2 ${\mathrm{pb}}^{\mathrm{\ensuremath{-}}1}$ of p\ifmmode\bar\else\textasciimacron\fi{}p collisions at \ensuremath{\surd}s =1.8 TeV. This exclusive ${\mathrm{\ensuremath{\chi}}}_{\mathit{c}}$ sample is used to measure the ${\mathrm{\ensuremath{\chi}}}_{\mathit{c}}$-meson production cross section times branching fractions. We obtain \ensuremath{\sigma}\ifmmode\times\else\texttimes\fi{}B=3.2\ifmmode\pm\else\textpm\fi{}0.4(stat${)}_{\mathrm{\ensuremath{-}}1.1}^{+1.2}$(syst) nb for ${\mathrm{\ensuremath{\chi}}}_{\mathit{c}}$ mesons decaying to J/\ensuremath{\psi} with ${\mathit{p}}_{\mathit{T}}$g6.0 GeV/c and pseudorapidity \ensuremath{\Vert}\ensuremath{\eta}\ensuremath{\Vert}0.5. From this and the inclusive J/\ensuremath{\psi} cross section we calculate the inclusive b-quark cross section to be 12.0\ifmmode\pm\else\textpm\fi{}4.5 \ensuremath{\mu}b for ${\mathit{p}}_{\mathit{T}}^{\mathit{b}}$g8.5 GeV/c and \ensuremath{\Vert}${\mathit{y}}^{\mathit{b}}$\ensuremath{\Vert}1.

Published
1993

29. Prompt photon cross section measurement inp¯pcollisions ats=1.8TeV

Author

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

Subjects
Quantum chromodynamics, Physics, Particle physics, Photon, Computer Science::Information Retrieval, law.invention, Nuclear physics, Cross section (physics), law, Transverse momentum, High Energy Physics::Experiment, Fermilab, Quantum field theory, Particle collision, Collider
Abstract

The first prompt photon measurement from the CDF experiment at the Fermilab [ital p[bar p]] Collider is presented. Two independent methods are used to measure the cross section: one for high transverse momentum ([ital P][sub [ital T]]) and one for lower [ital P][sub [ital T]]. Comparisons to various theoretical calculations are shown. The cross section agrees qualitatively with QCD calculations but has a steeper slope at low [ital P][sub [ital T]].

Published
1993

30. Observation of the decayBs0→J/ψ φ inp¯pcollisions at √s=1.8 TeV

Author

F. Abe, M. Albrow, D. Amidei, C. Anway-Wiese, G. Apollinari, H. Areti, P. Auchincloss, F. Azfar, P. Azzi, N. Bacchetta, W. Badgett, M. W. Bailey, J. Bao, P. de Barbaro, A. Barbaro-Galtieri, V. E. Barnes, B. A. Barnett, G. Bauer, T. Baumann, F. Bedeschi, S. Behrends, S. Belforte, G. Bellettini, J. Bellinger, D. Benjamin, J. Benlloch, A. Beretvas, A. Bhatti, K. Biery, M. Binkley, F. Bird, D. Bisello, R. E. Blair, C. Blocker, A. Bodek, V. Bolognesi, C. Boswell, T. Boulos, G. Brandenburg, 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, A. Castro, Y. Cen, F. Cervelli, J. Chapman, G. Chiarelli, T. Chikamatsu, S. Cihangir, A. G. Clark, M. Cobal, M. Contreras, J. Cooper, M. Cordelli, D. P. Coupal, D. Crane, J. D. Cunningham, T. Daniels, F. DeJongh, S. Dell’Agnello, M. Dell’Orso, L. Demortier, B. Denby, M. Deninno, P. F. Derwent, T. Devlin, M. Dickson, J. P. Done, R. B. Drucker, A. Dunn, K. Einsweiler, J. E. Elias, R. Ely, E. Engels, S. Eno, D. Errede, S. Errede, A. Etchegoyen, Q. Fan, B. Farhat, I. Fiori, B. Flaugher, G. W. Foster, M. Franklin, M. Frautschi, J. Freeman, J. Friedman, H. Frisch, A. Fry, T. A. Fuess, Y. Fukui, S. Funaki, A. F. Garfinkel, 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. Grassman, A. Grewal, G. Grieco, L. Groer, C. Grosso-Pilcher, C. Haber, S. R. Hahn, R. Hamilton, R. Handler, R. M. Hans, K. Hara, B. Harral, R. M. Harris, S. A. Hauger, J. Hauser, C. Hawk, J. Heinrich, D. Hennessy, R. Hollebeek, L. Holloway, A. Höscher, S. Hong, G. Houk, P. Hu, B. T. Huffman, R. Hughes, J. Hurst, J. Huth, J. Hylen, M. Incagli, J. Incandela, H. Iso, H. Jensen, C. P. Jessop, U. Joshi, R. W. Kadel, T. Kamon, T. Kaneko, D. A. Kardelis, H. Kasha, Y. Kato, L. Keeble, R. Kennedy, R. Kephart, P. Kesten, D. Kestenbaum, R. M. Keup, H. Keutelian, F. Keyvan, D. H. 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, M. Krasberg, S. E. Kuhlmann, E. Kuns, A. T. Laasanen, S. Lammel, J. I. Lamoureux, T. LeCompte, S. Leone, J. D. Lewis, P. Limon, M. Lindgren, T. M. Liss, N. Lockyer, O. Long, M. Loreti, E. H. Low, J. Lu, D. Lucchesi, C. B. Luchini, P. Lukens, P. Maas, K. Maeshima, A. Maghakian, 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. Mikamo, M. Miller, T. Mimashi, S. Miscetti, M. Mishina, H. Mitsushio, S. Miyashita, Y. Morita, S. Moulding, J. Mueller, A. Mukherjee, T. Muller, L. F. Nakae, I. Nakano, C. Nelson, D. Neuberger, C. Newman-Holmes, L. Nodulman, S. Ogawa, K. E. Ohl, R. Oishi, T. Okusawa, R. Paoletti, V. Papadimitriou, S. Park, J. Patrick, G. Pauletta, L. Pescara, M. D. Peters, T. J. Phillips, G. Piacentino, M. Pillai, R. Plunkett, L. Pondrom, N. Produit, J. Proudfoot, F. Ptohos, G. Punzi, K. Ragan, F. Rimondi, L. Ristori, M. Roach-Bellino, W. J. Robertson, T. Rodrigo, J. Romano, L. Rosenson, W. K. Sakumoto, D. Saltzberg, A. Sansoni, V. Scarpine, A. Schindler, P. Schlabach, E. E. Schmidt, M. P. Schmidt, O. Schneider, G. Sciacca, A. Scribano, S. Segler, S. Seidel, Y. Seiya, G. Sganos, M. 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, D. A. Smith, F. D. Snider, L. Song, T. Song, J. Spalding, P. Sphicas, A. Spies, L. Stanco, J. Steele, A. Stefanini, G. Sullivan, K. Sumorok, R. L. Swartz, T. Takahashi, K. Takikawa, B. Tannenbaum, F. Tartarelli, Y. Teramoto, S. Tether, D. Theriot, J. Thomas, R. Thun, M. Timko, P. Tipton, A. Titov, S. Tkaczyk, A. Tollestrup, J. Tonnison, J. Tseng, M. Turcotte, N. Turini, N. Uemura, F. Ukegawa, S. Vejcik, M. Vondracek, R. G. Wagner, R. L. Wagner, N. Wainer, R. C. Walker, J. Wang, Q. F. Wang, A. Warburton, G. Watts, T. Watts, R. Webb, C. Wendt, H. Wenzel, W. C. Wester, T. Westhusing, A. B. Wicklund, E. Wicklund, R. Wilkinson, H. H. Williams, B. L. Winer, J. Wolinski, D. Y. Wu, X. Wu, J. Wyss, A. Yagil, W. Yao, K. Yasuoka, Y. Ye, G. P. Yeh, M. Yin, J. Yoh, T. Yoshida, D. Yovanovitch, I. Yu, J. C. Yun, A. Zanetti, F. Zetti, S. Zhang, W. Zhang, and S. Zucchelli

Subjects
Combinatorics, Physics, Particle model, TheoryofComputation_ANALYSISOFALGORITHMSANDPROBLEMCOMPLEXITY, Computer Science::Information Retrieval, General Physics and Astronomy, High Energy Physics::Experiment, B meson, Collider Detector at Fermilab, Mass measurement, J/psi meson
Abstract

This Letter reports the observation and mass measurement of fully reconstructed [ital B][sub [ital s]][sup 0] mesons through the decay chain [ital B][sub [ital s]][sup 0][r arrow][ital J]/[psi] [psi], [ital J]/[psi][r arrow][mu][sup +][mu][sup [minus]], [phi][r arrow][ital K][sup +][ital K[minus]] using data obtained at the Collider Detector at Fermilab in [ital [bar p]p] collisions at [radical][ital s] =1.8 TeV. A signal of 14.0[plus minus]4.7 events is observed. Comparison of the [ital B][sub [ital s]][sup 0] signal with the kinematically similar decays [ital B][sup +][r arrow][ital J]/[psi] [ital K][sup +] and [ital B][sup 0][r arrow][ital J]/[psi] K[sup *](892)[sup 0] is presented. The mass of the [ital B][sub [ital s]][sup 0] meson is determined to be 5383.3[plus minus]4.5(stat)[plus minus]5.0(syst) MeV/[ital c][sup 2].

Published
1993

31. Measurement of the dijet mass distribution inpp¯collisions ats=1.8TeV

Author

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

Subjects
Quantum chromodynamics, Physics, Particle physics, Mass distribution, Computer Science::Information Retrieval, High Energy Physics::Phenomenology, Elementary particle, Gluon, Nuclear physics, Effective mass (solid-state physics), Mass spectrum, High Energy Physics::Experiment, Invariant mass, Collider Detector at Fermilab
Abstract

The dijet invariant mass distribution has been measured in the region between 120 and 1000 GeV/[ital c][sup 2], in 1.8-TeV [ital p[bar p]] collisions. The data sample was collected with the Collider Detector at Fermilab (CDF). Data are compared to leading order (LO) and next-to-leading order (NLO) QCD calculations using two different clustering cone radii [ital R] in the jet definition. A quantitative test shows good agreement of data with the LO and NLO QCD predictions for a cone of [ital R]=1. The test using a cone of [ital R]=0.7 shows less agreement. The NLO calculation shows an improvement compared to LO in reproducing the shape of the spectrum for both radii, and approximately predicts the cone size dependence of the cross section.

Published
1993

32. Study of four-jet events and evidence for double parton interactions inpp¯collisions ats=1.8TeV

Author

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

Subjects
Physics, Quantum chromodynamics, Particle physics, Luminosity (scattering theory), Astrophysics::High Energy Astrophysical Phenomena, Parton, law.invention, Gluon, Nuclear physics, law, Pseudorapidity, Content (measure theory), High Energy Physics::Experiment, Nuclear Experiment, Collider, Collider Detector at Fermilab
Abstract

Kinematic properties of four-jet events produced in $p\overline{p}$ collisions at $\sqrt{s}=1.8$ TeV have been studied using data with an integrated luminosity of 325 ${\mathrm{nb}}^{\ensuremath{-}1}$ collected using the Collider Detector at Fermilab during the 1988-1989 Fermilab Collider run. The individual jet ${p}_{T}$ spectra and the angles between each jet pair are compared to the predictions of leading-order quantum chromodynamics for the double gluon bremsstrahlung process and good agreement is observed. In addition, a search for double parton scattering has been undertaken using variables sensitive to the topology of four-jet events. A small double parton content provides the best description of the data. We find $\frac{{N}_{\mathrm{DP}}}{{N}_{\mathrm{DB}}}={5.4}_{\ensuremath{-}2.0}^{+1.6}%$, where $N$ represents the number of events attributed to each process. We measure ${\ensuremath{\sigma}}_{\mathrm{DP}}={63}_{\ensuremath{-}28}^{+32}$ nb for jets having ${p}_{T}g25$ GeV/c in the pseudorapidity interval $|\ensuremath{\eta}|l3.5$.

Published
1993

33. Search forΛb→JψΛ0inpp¯collisions ats=1.8TeV

Author

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

Subjects
Baryon, Physics, Particle physics, Branching fraction, High Energy Physics::Phenomenology, High Energy Physics::Experiment, Production (computer science), Lambda, Collider Detector at Fermilab
Abstract

We have searched for the $b$-flavored baryon decay ${\ensuremath{\Lambda}}_{b}\ensuremath{\rightarrow}\frac{J}{\ensuremath{\psi}}{\ensuremath{\Lambda}}^{0}$ in $p\overline{p}$ collisions at $\sqrt{s}=1.8$ TeV with the Collider Detector at Fermilab (CDF). In the $\frac{J}{\ensuremath{\psi}}{\ensuremath{\Lambda}}^{0}$ invariant-mass distribution we observe a flat distribution and a small number of events, consistent with no signal. Using the $b$-quark cross section measured by the CDF we put an upper limit on the $b\ensuremath{\rightarrow}{\ensuremath{\Lambda}}_{b}$ production fraction times the branching ratio $F({\ensuremath{\Lambda}}_{b})B({\ensuremath{\Lambda}}_{b}\ensuremath{\rightarrow}\frac{J}{\ensuremath{\psi}}{\ensuremath{\Lambda}}^{0})$ of 0.50\ifmmode\times\else\texttimes\fi{}${10}^{\ensuremath{-}3}$ at 90% confidence level.

Published
1993

34. InclusiveJ/ψ, ψ(2S), andb-quark production inp¯pcollisions at √s=1.8 TeV

Author

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

Subjects
Physics, Combinatorics, Particle physics, TheoryofComputation_ANALYSISOFALGORITHMSANDPROBLEMCOMPLEXITY, Transverse momentum, General Physics and Astronomy, Bottom quark, J/psi meson
Abstract

Inclusive [ital J]/[psi] and [psi](2[ital S]) production has been studied in [ital [bar p]p] collisions at [radical][ital s] =1.8 TeV using 2.6[plus minus]0.2 pb[sup [minus]1] of data taken with the Collider Detector at Fermilab. The products of production cross section times branching fraction were measured as functions of [ital P][sub [ital T]] for [ital J]/[psi][r arrow][mu][sup +][mu][sup [minus]] and [psi](2[ital S])[r arrow][mu][sup +][mu][sup [minus]]. In the kinematic range [ital P][sub [ital T]][gt]6 GeV/[ital c] and [vert bar][eta][vert bar][le]0.5 we get [sigma]([ital [bar p]p][r arrow][ital J]/[psi] [ital X])[ital B]([ital J]/[psi][r arrow][mu][sup +][mu][sup [minus]]) =6.88[plus minus]0.23(stat)[sub [minus]1.08][sup +0.93](syst) nb, and [sigma]([ital [bar p]p][r arrow][psi](2[ital S])[ital X])[ital B]([psi](2[ital S])[r arrow][mu][sup +][mu][sup [minus]]) =0.232[plus minus]0.051(stat)[sub [minus]0.032][sup +0.029](syst)nb. From these values we calculate the inclusive [ital b]-quark production cross section.

Published
1992

35. Limit on the rare decayW±→γπ±inpp¯collisions at √s=1.8 TeV

Author

W. Carithers, S. Segler, M. Mishina, Fumihiko Ukegawa, M. Yokoyama, C. T. Day, T. Westhusing, A. B. Wicklund, W. Badgett, R. Mattingly, D. N. Brown, M. Miller, M. Lindgren, N. S. Lockyer, E. E. Schmidt, D. Y. Wu, S. Tkaczyk, M. Dickson, F. Cervelli, Wen Li, L. Holloway, A. Scribano, G. P. Yeh, M. Ninomiya, R. K. Plunkett, C. Nelson, S. Tether, J. Patrick, Stefano Belforte, L. Pondrom, E. Wicklund, S. Cihangir, P. Kesten, G. W. Brandenburg, L. Demortier, V. Bolognesi, Mosè Mariotti, T. Mimashi, Jacobo Konigsberg, D. W. Gerdes, Thomas Müller, Henrik Jeldtoft Jensen, Teresa Rodrigo, S. Vejcik, T. J. Phillips, Larry D. Gladney, J. E. Elias, Paraskevas Sphicas, M. Sheaff, A. Baden, Sandra Leone, D. Smith, Y. Morita, D. H. Kim, Jay Hauser, F. Tartarelli, V. Scarpine, Virgil E Barnes, Bellisario Esposito, M. J. Shochet, J. J. Walsh, T. L. Watts, Richard Hughes, N. Giokaris, J. W. Chapman, James Mueller, S. Ogawa, H. Wenzel, J. C. Yun, W. K. Sakumoto, J. D. Lewis, M. Franklin, S. Geer, S. Miscetti, S. R. Hahn, S. B. Kim, T. Hessing, A. Caner, A. W. Booth, S. Mikamo, Mauro Dell'Orso, C. Haber, Yongsun Kim, P. Schlabach, S. Behrends, C. Grosso-Pilcher, P. Hurst, George Redlinger, J. C. Freeman, D. Connor, M. Incagli, Giorgio Chiarelli, Bt Huffman, E. H. Low, S. A. Hauger, J. N. Bellinger, R. Kephart, T. Rohaly, J. T. Carroll, P. Limon, John Huth, D. Theriot, L. A. Markosky, R. Vidal, J. Hylen, A. Para, Paola Giannetti, B. A. Barnett, L. Keeble, G. W. Foster, M. Binkley, J. Wyss, Giorgio Apollinari, P. Hu, Giovanni Bellettini, Henry J. Frisch, Marina Cobal, J. D. Cunningham, F. DeJongh, R. M. Harris, R. C. Webb, J. Proudfoot, Nicola Bacchetta, B. Harral, A. Menzione, D. Crane, S. Errede, T. Song, Teruki Kamon, Y. Seiya, M. Roach, Craig Blocker, Kaori Maeshima, C. P. Jessop, S. Kanda, J. Rhoades, S. N. White, R. Carey, B. Hubbard, D. Amidei, G. Punzi, Luciano Ristori, A. Bodek, E. Kuns, J. Tonnison, L. E. Kirsch, S. Miyashita, M. Gold, William Chinowsky, J. Skarha, H. Grassmann, C. Anway-Weiss, K. Ragan, Rolland P. Johnson, T. Baumann, M. Cordelli, Shuang Zhang, E. Kearns, T. Ino, A. Byon-Wagner, H. Iso, A. G. Clark, H. H. Williams, A. Stefanini, Itsuo Nakano, J. R. Bensinger, Alan Garfinkel, J. S T Ng, P. McIntyre, J. Siegrist, M. H. Schub, M. Timko, K. Chadwick, G. Busetto, Brian L Winer, Duncan Carlsmith, M. Spahn, R. Markeloff, Robert P. Ely, T. M. Liss, M. Atac, S. Bertolucci, D. P. Benjamin, Seungbum Hong, Shlomit Tarem, A. Roodman, R. G. Wagner, P. F. Derwent, T. C. Meyer, M. Loreti, A. Gauthier, A. Bamberger, Dario Bisello, R. J. Hollebeek, R. D. Sard, H. S. Budd, M. Takano, K. L. Byrum, Avraham Yagil, Kazuhiko Hara, Paul Tipton, Kevin Einsweiler, D. A. Kardelis, P. Giromini, R. St. Denis, J. I. Lamoureux, P. Maas, Anna Zanetti, R. L. Wagner, Roy F Schwitters, L. Song, T. Fuess, K. Goulianos, A. Mukherjee, Catherine Newman-Holmes, N. Wainer, Nicola Turini, A. Tollestrup, D. Dibitonto, Yasuo Fukui, I. Karliner, C. Wendt, L. Nodulman, R. W. Kadel, A. T. Laasanen, T. Devlin, P. de Barbaro, Sarah Catherine Eno, C. B. Luchini, S. Zucchelli, R. E. Blair, F. Rimondi, Jose M. Benlloch, Franco Bedeschi, A. Barbaro-Galtieri, H. Keutelian, G. Bauer, F. D. Snider, M. Contreras, Y. Tsay, U. Joshi, J. Cooper, R. M. Keup, R. L. Swartz, Marjorie Shapiro, F. Zetti, C. Hawk, Mark Campbell, S. H. Kim, S. E. Kuhlmann, E. Buckley-Geer, Riccardo Paoletti, Claudio Campagnari, N. M. Shaw, P. Sinervo, J. Yoh, A. Castro, L. F. Nakae, P. Lukens, K. Sliwa, D. R. Quarrie, B. Farhat, Aurore Savoy-Navarro, Fumio Abe, M. Krasberg, K. Takikawa, G. Sullivan, Maria Curatolo, G. Pauletta, L. Pescara, M. Mangano, William Trischuk, Andrea Sansoni, K. Yasuoka, V. Papadimitriou, Andrew Beretvas, Sung Keun Park, F. Ptohos, W. J. Robertson, D. G. Underwood, A. Etchegoyen, O. Schneider, M. W. Bailey, S. Moulding, R. Handler, W. C. Wester, E. Kovacs, S. Dell'Agnello, J. P. Berge, R. J. Cashmore, C. Boswell, R. B. Drucker, E. Pare, J. P. Marriner, Stephan Lammel, P. Auchincloss, Bruce Denby, B. Flaugher, G. M. Grieco, Sanchita Bhadra, and Kiminori Kondo

Subjects
Physics, Particle decay, Particle physics, Branching fraction, Particle model, Particle interaction, Radiative decay, General Physics and Astronomy, Collider Detector at Fermilab
Abstract

We search for the rare decay ${\mathit{W}}^{\ifmmode\pm\else\textpm\fi{}}$\ensuremath{\rightarrow}\ensuremath{\gamma}${\mathrm{\ensuremath{\pi}}}^{\ifmmode\pm\else\textpm\fi{}}$ in 4.2 ${\mathrm{pb}}^{\mathrm{\ensuremath{-}}1}$ of pp\ifmmode\bar\else\textasciimacron\fi{} collisions recorded with the Collider Detector at Fermilab. At the 95% confidence level, we find an upper limit on the partial decay width to be \ensuremath{\Gamma}(${\mathit{W}}^{\ifmmode\pm\else\textpm\fi{}}$\ensuremath{\rightarrow}\ensuremath{\gamma}${\mathrm{\ensuremath{\pi}}}^{\ifmmode\pm\else\textpm\fi{}}$)/\ensuremath{\Gamma}(${\mathit{W}}^{\ifmmode\pm\else\textpm\fi{}}$\ensuremath{\rightarrow}${\mathit{e}}^{\ifmmode\pm\else\textpm\fi{}}$\ensuremath{\nu})\ensuremath{\le}7.5\ifmmode\times\else\texttimes\fi{}${10}^{\mathrm{\ensuremath{-}}3}$.

Published
1992

36. Study of inclusiveΛproduction ine+e−annihilations at 29 GeV

Author

B. B. Brabson, Jose Repond, D. Blockus, D. R. Rust, P. Kooijman, D. Nitz, R. Tschirhart, C. K. Jung, S. Abachi, R. P. Thun, B. Cork, P. Baringer, D. H. Miller, K. Sugano, P. Kesten, R. L. McIlwain, B. Musgrave, E. I. Shibata, K. Rangan, Carl W. Akerlof, A. Snyder, D. I. Meyer, J. W. Chapman, M. T. Ken, M. Derrick, E. H. Low, B. G. Bylsma, H. O. Ogren, L. E. Price, H. A. Neal, R. Debonte, D. Errede, T. L. Geld, C. R. Ng, and J. M. Brom

Subjects
Baryon, Physics, Particle physics, Annihilation, Electron–positron annihilation, Hadron, Hyperon, Strangeness, Atomic physics, Lambda baryon, Lambda
Abstract

Cross sections are presented for the inclusive production of {Lambda} hyperons in electron-positron annihilations at {radical}{ital s} =29 GeV based on the full 291-pb{sup {minus}1} sample of data taken in the High Resolution Spectrometer experiment at the SLAC {ital e}{sup +}{ital e}{minus} storage ring PEP. These results, and the associated correlation analyses, are consistent with the Lund model predictions with the strange diquark suppression ratio {delta} fixed at 0.59{plus minus}0.10{plus minus}0.18, as compared to the standard Lund value of 0.32. The {Lambda} multiplicity has been found to be 0.182{plus minus}0.020 per event. The opposite-strangeness multiplicity {l angle}{ital n}{sub {Lambda}}{Lambda}{bar a}{r angle} has been measured to be 0.046{plus minus}0.020, whereas the like-strangeness multiplicity {l angle}{ital n}{sub {Lambda}{Lambda}}+{bar {Lambda}}{bar {Lambda}}{r angle} is 0.009{plus minus}0.028. A strong correlation is found between {Lambda}'s and {bar {Lambda}} 's; when one is found in an event, the other is found in the same event with a probability that exceeds 50%.

Published
1992

37. Evidence for hard scattering of hadronic constituents of photons in photon-photon collisions of TRISTAN

Author

Hiroyuki Sagawa, K. Gotow, R. L. Lander, C. Rosenfeld, S. Wilson, Richard Breedon, K. Tomioka, R. C. Walker, Steve Schnetzer, S. S. Myung, L. E. Piilonen, Y. Takaiwa, M. Frautschi, S. Matsumoto, J. Vinson, S. K. Choi, E. H. Low, A. Murakami, F. Sannes, David Stuart, S. Kanda, A. Bacala, K. P. Hu, E. Araki, A. T.M. Wang, T. Nozaki, Y. Oshi, T. Ishizuka, W. G. Yan, H. Kagan, C. P. Cheng, A. Z. Lai, Sun Kee Kim, S. L. Olsen, T. Kumita, Dong-Chul Son, Y. K. Li, C. Velisarris, J. S. Kang, P. N. Kirk, Kazuo Abe, J. Lim, Takashi Sasaki, J. R. Smith, T. Kojima, Yoshimasa Kurihara, Robert Stone, S. Lusin, Tsunehiko Omori, Y. Yamashita, K. Ueno, Yusuke Higashi, Kaori Maeshima, W. X. Gao, P. Gu, M. E. Mattson, H. Miyata, Kazumasa Miyano, C. A. Fry, R. L. Malchow, M. H. Ye, A. Sill, H. Yoshinaka, Yongsun Kim, B. J. Kim, A. Maki, R. D. Kass, Moo Hyun Lee, Winston Ko, S. Kobayashi, Susumu Terada, R. Poling, T. Thomas, D. Blanis, A. Abashian, K. L. Sterner, Rr Mcneil, F. Kajino, R. Tanaka, J. Rowe, A. Bodek, Y. Sakai, Yasuhiro Sugimoto, and Y. Fujii

Subjects
Physics, Nuclear physics, Quantum chromodynamics, Nuclear and High Energy Physics, Particle physics, Photon, Luminosity (scattering theory), Scattering, Nuclear Theory, High Energy Physics::Phenomenology, Hadron, High Energy Physics::Experiment, Nuclear Experiment
Abstract

We present results of an experimental study of e+e−+ hadrons in the kinematic regime for which the process is interpreted as hadron production in collisions of almost-real photons. The data sample corresponds to an integrated luminosity of 27.5 pb− and covers center-of-mass energies from 55 to 61.4 GeV. We observe more events than expected from the incoherent sum of quark-parton and vector-meson-dominance models, and we give a quantitative explanation of the excess by including the hard scattering of the hadronic constituents of the photons calculated with QCD.

Published
1992

38. SEARCH FOR CHARGED HEAVY LEPTONS WITH ARBITRARY NEUTRINO MASSES IN e+e− ANNIHILATIONS AT $\sqrt{s} = 50 - 60.8~{\rm GeV}$

Author

Richard Breedon, M. H. Ye, Hiroyuki Sagawa, H. Miyata, J. Vinson, S. Lusin, W. Metcalf, K. Gotow, C. G. Trahern, T. Kumita, David Stuart, Takashi Sasaki, H. S. Budd, Kazuo Abe, C. Rosenfeld, Y. C. Zhu, S. L. Olsen, A. Sill, D. Perticone, F. Sannes, Y. Fujii, J. S. Kang, Y. Sugimoto, T. Mori, R. R. McNeil, Kaori Maeshima, K. Ohta, K. P. Hu, Winston Ko, K. Ueno, F. Kajino, Yasuo Higashi, M. H. Lee, R. Tanaka, E. J. Kim, E. H. Thorndike, J. Lim, G. N. Kim, S. Kobayashi, Robert Stone, J. Li, D. Blanis, Y. Sakai, Y. H. Ho, S.K. Kim, N. M. Shaw, Tsunehiko Omori, P. Gu, I. H. Park, S. Matsumoto, J. Liu, T. Nozaki, R. L. Malchow, P. Auchincloss, K. L. Sterner, Bj Kim, R. L. Imlay, D. H. Han, Yongsun Kim, J. Rowe, T. Ishizuka, R. D. Kass, K. Tomioka, A. Maki, C. P. Cheng, A. Bodek, C. A. Fry, S. S. Myung, H. W. Zheng, R. C. Walker, A. Bacala, Steve Schnetzer, H. Harada, Y. Takaiwa, Dong-Chul Son, H. Kagan, C. Velissaris, M. E. Mattson, A. Abashian, Y. Ishi, Yoshimasa Kurihara, E. H. Low, S. Wilson, P. N. Kirk, R. L. Lander, Y. Yamashita, Y. K. Li, A. Murakami, M. Frautschi, R. Poling, Kazumasa Miyano, Sarah Catherine Eno, Susumu Terada, T. Thomas, A. T.M. Wang, J. R. Smith, Hyunyong Kim, and L. E. Piilonen

Subjects
Physics, Nuclear and High Energy Physics, Particle physics, High Energy Physics::Phenomenology, Hadron, Astronomy and Astrophysics, Atomic and Molecular Physics, and Optics, Massless particle, Nuclear physics, Pair production, High Energy Physics::Experiment, Neutrino, Nuclear Experiment, Lepton
Abstract

Results of a search for the pair production of charged heavy leptons in e+e− annihilations over the center-of-mass energy range of 50 to 60.8 GeV are reported. We assume that the leptons are of the sequential type but have allowed for the case where the associated neutrino might be massive. Separate searches for evidence for decays to hadronic and leptonic final states, searches specialized for the case where the charged lepton and its associated neutrino are close in mass, and a search for stable heavy leptons have uncovered no evidence for the production of such particles at these energies. Mass limits for heavy leptons and their associated neutrinos are determined for a range of hadronic and leptonic decay branching fractions. A sequential charged heavy lepton with mass between 12.6 and 29.6 GeV/c2 and with massless neutrino is excluded at the 95% confidence level.

Published
1991

39. A measurement of the photon structure function F2

Author

J. Rowe, A. Bodek, Richard Breedon, T. Kumita, Y. Sugimoto, E. H. Low, Robert Stone, David Stuart, S. Kanda, M. E. Mattson, T. Nozaki, H. Kagan, J. S. Kang, Y. Ishi, C. Velisarris, E. J. Kim, Takashi Sasaki, Kazumasa Miyano, A. Murakami, Yusuke Higashi, K. Ueno, J. Vinson, L. E. Piilonen, J. R. Smith, P. N. Kirk, T. Kojima, T. Yasuda, Y. C. Zhu, Y. Yamashita, Kazuo Abe, S. L. Olsen, C. A. Fry, K. Gotow, S. K. Choi, M. H. Ye, N. M. Shaw, R. L. Malchow, H. Miyata, E. H. Thorndike, Hiroyuki Sagawa, C. P. Cheng, J. Lim, Kaori Maeshima, Yongsun Kim, A. T.M. Wang, M. Frautschi, W. Metcalf, Y. Yamagishi, H. Harada, R. D. Kass, B. J. Kim, Y. Takaiwa, Sarah Catherine Eno, P. Gu, Susumu Terada, A. Bacala, H. S. Budd, C. Rosenfeld, T. Ishizuka, A. Sill, R. L. Lander, Dong-Chul Son, Tsunehiko Omori, Yoshimasa Kurihara, S. Matsumoto, S. S. Myung, H. W. Zheng, Moo Hyun Lee, K. Ohta, S. Schenetzer, Winston Ko, P. Auchincloss, S. Kobayashi, F. Sannes, Y. H. Ho, Hyunyong Kim, K. P. Hu, D. H. Han, A. Maki, G. N. Kim, Y. K. Li, S. Lusin, S. Wilson, R. Poling, R. C. Walker, D. Blanis, R. Tanaka, K. L. Sterner, A. Z. Lai, Rr Mcneil, S. K. Kim, F. Kajino, Y. Fujii, Y. Sakai, T. Thomas, and A. Abashian

Subjects
Quantum chromodynamics, Nuclear physics, Physics, Nuclear and High Energy Physics, Particle physics, Structure function, Range (statistics), High Energy Physics::Experiment, Photon structure function
Abstract

The photon structure function F2 has been measured at average Q2 values of 73,160 and 390 ( GeV c ) 2 . We compare the x dependence of the Q2 = 73 ( GeV c ) 2 data with theoretical expectations based on QCD. In addition we present results on the Q2 evolution of the structure function for the intermediate x range (0.3⩽ x ⩽0.8). The results are consistent with QCD.

Published
1990

40. Test of QED to fourth order by study of four-lepton final states ine+e−interactions at 29 GeV with the HRS detector

Author

D. R. Rust, D. H. Miller, D. Errede, E. I. Shibata, R. L. McIlwain, J. M. Brom, S. Abachi, R. P. Thun, D.S. Koltick, R. Tschirhart, M. Petradza, M. T. Ken, B. Cork, Jose Repond, K. Sugano, P. Baringer, D. Blockus, D. I. Meyer, H. O. Ogren, L. E. Price, H. A. Neal, R. Debonte, J. W. Chapman, M. Derrick, C. K. Jung, E. H. Low, B. B. Brabson, C. R. Ng, Ben Bylsma, P. Kooijman, C. Akerlof, and D. Nitz

Subjects
Physics, Coupling constant, Nuclear physics, Particle physics, Annihilation, Luminosity (scattering theory), Muon, Bremsstrahlung, High Energy Physics::Experiment, Elementary particle, Particle detector, Lepton
Abstract

Data taken with the High Resolution Spectrometer detector at the SLAC storage ring PEP were used to test QED to fourth order in the coupling constant a. The experiment studied four-lepton final states produced at high Q' in e+e interactions at &s =29 GeV. All four final-state particles were detected at large angles with respect to the beam axis. We observed 17 e+e e+e, 24 e+e p+p, and 1 p+p p+p events with pair masses greater than 1 GeV/c for an integrated luminosity of 291 pb '. The complete a QED calculation agrees reasonably well with the data.

Published
1990

41. Measurements ofRfore+e−annihilation at the KEK collider TRISTAN

Author

M. Frautschi, Y. Sakai, M. H. Ye, Y. Fujii, Hiroyuki Sagawa, Y. K. Li, D. H. Han, E. H. Thorndike, T. Mori, D. Perticone, J. Lim, R. Poling, Y. Sugimoto, J. Li, A. Bacala, Yoshimasa Kurihara, W. Metcalf, Robert Stone, Rr Mcneil, T. Nozaki, J. S. Kang, L. E. Piilonen, E. H. Low, E. J. Kim, C. G. Trahern, A. Murakami, H. S. Budd, Takashi Sasaki, T. Kumita, S. K. Kim, R. C. Walker, Steve Schnetzer, K. Ueno, A. Abashian, F. Sannes, Kazuo Abe, G. N. Kim, Kaori Maeshima, K. P. Hu, C. P. Cheng, Y. Yamagishi, R. L. Malchow, F. Kajino, R. Tanaka, C. A. Fry, Yongsun Kim, P. Gu, R. L. Lander, T. Kojima, A. Sill, H. Kagan, R. Imlay, R. D. Kass, M. H. Lee, T. Yasuda, K. Ohta, Winston Ko, N. M. Shaw, A. Maki, Richard Breedon, K. Gotow, Kazumasa Miyano, S. Kobayashi, David Stuart, S. Lusin, S. Matsumoto, Y. H. Ho, D. Blanis, S. Wilson, Y. Takaiwa, J. Vinson, A. Bodek, Hyunyong Kim, Dong-Chul Son, Sarah Catherine Eno, I. H. Park, Susumu Terada, J. Liu, Yusuke Higashi, Y. C. Zhu, K. L. Sterner, H. Harada, S. L. Olsen, T. Ishizuka, P. Auchincloss, S. S. Myung, H. W. Zheng, T. Thomas, M. E. Mattson, Y. Ishi, P. N. Kirk, Y. Yamashita, A. T.M. Wang, J. R. Smith, Tsunehiko Omori, C. Rosenfeld, and H. Miyata

Subjects
Nuclear physics, Physics, Particle physics, Antiparticle, Muon, Annihilation, Pair production, TheoryofComputation_ANALYSISOFALGORITHMSANDPROBLEMCOMPLEXITY, Antimatter, Electron–positron annihilation, Hadron, Elementary particle
Abstract

The ratio {ital R} of the total cross section for {ital e}{sup +}{ital e}{sup {minus}} annihilation into hadrons to the lowest-order QED cross section for {ital e}{sup +}{ital e}{sup {minus}}{r arrow}{mu}{sup +}{mu}{sup {minus}} has been measured for center-of-mass energies ranging from 50 to 61.4 GeV. If we allow for an overall shift of {minus}4.9%, about 1.5 times our estimated normalization error, the results are consistent with the standard-model predictions.

Published
1990

42. Observation of anomalous production of muon pairs in e+e− annihilation into four-lepton final states

Author

S. S. Myung, H. W. Zheng, H. Kagan, M. H. Ye, Rr Mcneil, E. H. Thorndike, J. Lim, A. Maki, M. E. Mattson, A. Bodek, C. A. Fry, Gordon Watts, S. K. Kim, Y. Ishi, R. C. Walker, Steve Schnetzer, Tsunehiko Omori, D. H. Han, P. Gu, H. Ichinose, Hiroyuki Sagawa, F. Kajino, Y. Sakai, M. Dickson, S. Lusin, T. Thomas, Yoshimasa Kurihara, Kazuo Abe, J. Li, David Stuart, P. N. Kirk, T. Nozaki, R. L. Malchow, C. Velissaris, Yasuhiro Sugimoto, L. E. Piilonen, W. Metcalf, N. M. Shaw, Yongsun Kim, Kaori Maeshima, Y. Yamashita, E. J. Kim, H. S. Budd, Y. Yamagishi, C. P. Cheng, M. Frautschi, R. D. Kass, R. Tanaka, Y. Takaiwa, Takashi Sasaki, Y. C. Zhu, H. Miyata, S. L. Olsen, Hyunyong Kim, E. H. Low, G. N. Kim, A. Bacala, Dong-Chul Son, M. H. Lee, F. Sannes, A. Sill, A. Murakami, K. P. Hu, Y. Fujii, S. Wilson, D. Blanis, K. Ohta, A. Abashian, T. Kojima, J. R. Smith, Winston Ko, Yusuke Higashi, S. Matsumoto, T. Yasuda, S. Kobayashi, Y. H. Ho, R. Imlay, K. Gotow, K. L. Sterner, C. Rosenfeld, A. T.M. Wang, T. Mori, C. G. Trahern, T. Kumita, Kazumasa Miyano, Sarah Catherine Eno, Susumu Terada, B. J. Kim, Y. K. Li, R. Poling, R. L. Lander, Robert Stone, H. Harada, P. Auchincloss, Richard Breedon, J. Vinson, D. Perticone, J. S. Kang, K. Ueno, I. H. Park, J. Liu, and T. Ishizuka

Subjects
Physics, Nuclear and High Energy Physics, Particle physics, Annihilation, Muon, Electron–positron annihilation, Bremsstrahlung, law.invention, Nuclear physics, Angular distribution, law, Beam direction, High Energy Physics::Experiment, Nuclear Experiment, Collider, Lepton
Abstract

We report results of a study of four-lepton final states produced in e+e− collisions at center-of-mass energies from 50 to 61.4 GeV using the AMY detector at the TRISTAN collider. For the cases where two or three charged tracks are produced at large angles relative to the beam direction, the cross sections agree with QED. However, we observe an excess of e+e−→e+e−μ+μ− events with four tracks at wide angles and with dimuon mass less than 1.0 GeV/c2.

Published
1990

43. Multihadron-event properties ine+e−annihilation ats=52−57GeV

Author

R. Tanaka, M. Frautschi, H. Miyata, A. Abashian, Takashi Sasaki, J. Li, M. H. Lee, L. E. Piilonen, Y. Sakai, W. Metcalf, H. Kagan, N. M. Shaw, T. Mori, I. H. Park, R. R. McNeil, P. Auchincloss, J. Liu, S. Wilson, R. L. Imlay, T. Ishizuka, S. Lusin, D. Perticone, Hiroyuki Sagawa, C. A. Fry, S. Matsumoto, Kazumasa Miyano, J. S. Kang, A. Bodek, T. Kojima, C. P. Cheng, T. Yasuda, Y. Takaiwa, K. Ueno, E. H. Low, Yasuhiro Sugimoto, Tsunehiko Omori, R. C. Walker, S. Kobayashi, F. Sannes, A. Maki, K. Gotow, Y. Fujii, Steve Schnetzer, C. G. Trahern, Dong-Chul Son, Kazuo Abe, T. Kumita, Robert Stone, T. Nozaki, K. P. Hu, Hyunyong Kim, Richard Breedon, H. S. Budd, G. N. Kim, S. S. Myung, H. W. Zheng, Sarah Catherine Eno, Susumu Terada, R. L. Lander, Kaori Maeshima, J. Vinson, E. J. Kim, Y. Yamagishi, M. H. Ye, H. Harada, Yoshimasa Kurihara, J. R. Smith, T. Thomas, D. H. Han, Yusuke Higashi, Y. K. Li, A. Murakami, R. Poling, M. E. Mattson, A. Sill, A. T.M. Wang, K. Ohta, Winston Ko, Y. Ishi, P. N. Kirk, Y. H. Ho, Y. Yamashita, D. Blanis, A. Bacala, K. L. Sterner, S. K. Kim, R. L. Malchow, F. Kajino, Yongsun Kim, R. D. Kass, E. H. Thorndike, J. Lim, P. Gu, David Stuart, Y. C. Zhu, S. L. Olsen, and C. Rosenfeld

Subjects
Quantum chromodynamics, Astroparticle physics, Physics, Particle physics, Annihilation, High Energy Physics::Phenomenology, Hadron, High Energy Physics::Experiment, Parton, Elementary particle, Quantum field theory, Nuclear Experiment, Hadronization
Abstract

We present the general properties of multihadron final states produced by {ital e}{sup +}{ital e}{sup {minus}} annihilation at center-of-mass energies from 52 to 57 GeV in the AMY detector at the KEK collider TRISTAN. Global shape, inclusive charged-particle, and particle-flow distributions are presented. Our measurements are compared with QCD+fragmentation models that use either leading-logarithmic parton-shower evolution or QCD matrix elements at the parton level, and either string or cluster fragmentation for hadronization.

Published
1990

44. A search for leptoquark and colored lepton pair production in e+e− annihilations at TRISTAN

Author

E. H. Thorndike, Y. Sugimoto, P. Auchincloss, J. Lim, T. Nozaki, A. T.M. Wang, J. R. Smith, P. Gu, Hyunyong Kim, M. H. Lee, C. Rosenfeld, W. Metcalf, T. Kojima, I. H. Park, T. Yasuda, Y. Fujii, E. J. Kim, Dong-Chul Son, S. Wilson, David Stuart, J. Liu, F. Sannes, Takashi Sasaki, K. Gotow, K. P. Hu, T. Ishizuka, P. N. Kirk, R. Imlay, M. Frautschi, Tsunehiko Omori, Y. K. Li, A. Bacala, R. R. McNeill, S. K. Kim, Y. Yamashita, Yusuke Higashi, Y. C. Zhu, S. L. Olsen, D. H. Han, Richard Breedon, G. N. Kim, S. Matsumoto, A. Maki, N. M. Shaw, R. Poling, T. Mori, F. Kajino, C. A. Fry, D. Perticone, Y. Sakai, M. H. Ye, A. Abashian, J. S. Kang, M. E. Mattson, J. Vinson, J. Li, R. L. Lander, L. E. Piilonen, R. L. Malchow, Y. Ishi, R. Tanaka, K. Ueno, Y. Takaiwa, C. G. Trahern, E. H. Low, Robert Stone, S. Lusin, T. Kumita, R. D. Kass, T. Thomas, A. Murakami, C. P. Cheng, Hiroyuki Sagawa, A. Sill, R. C. Walker, Steve Schnetzer, Yk Kim, K. Ohta, D. Blanis, Winston Ko, H. Miyata, Kazuo Abe, S. Kobayashi, Kazumasa Miyano, Kaori Maeshima, Yoshimasa Kurihara, H. S. Budd, Y. Yamagishi, K. L. Sterner, Sarah Catherine Eno, Susumu Terada, H. Harada, H. Kagan, A. Bodek, S. S. Myung, and H. W. Zheng

Subjects
Nuclear physics, Physics, Nuclear and High Energy Physics, Particle physics, Pair production, Colored, Electron–positron annihilation, High Energy Physics::Phenomenology, High Energy Physics::Experiment, Leptoquark, Lepton
Abstract

We report on a search for the pair production of leptoquarks and colored leptons in e + e − annihilations t center-of-mass energies from 50 to 60.8 GeV, using the AMY detector at TRISTAN. No evidence for such particles is found and 95% CL mass limits are given.

Published
1990

45. Measurement of the branching ratio for the decayτ−→e−ν¯eντ

Author

H. O. Ogren, L. E. Price, C. R. Ng, B. Musgrave, R. Tschirhart, D. Nitz, P. Kooijman, H. A. Neal, D. Blockus, R. Debonte, Jose Repond, J. M. Brom, J. W. Chapman, C. K. Jung, B. Cork, Carl W. Akerlof, D. Errede, D. H. Miller, Ben Bylsma, D.S. Koltick, K. Sugano, D. I. Meyer, R. L. McIlwain, E. I. Shibata, S. Abachi, R. P. Thun, D. R. Rust, P. Baringer, B. B. Brabson, M. T. Ken, M. Derrick, and E. H. Low

Subjects
Physics, Crystallography, Branching fraction, TheoryofComputation_ANALYSISOFALGORITHMSANDPROBLEMCOMPLEXITY, Computer Science::Information Retrieval, High resolution, High Energy Physics::Experiment, Elementary particle, Fermion, Lepton, Bhabha scattering
Abstract

This paper reports a new measurement of the branching ratio for the decay {tau}{sup {minus}}{r arrow}{ital e}{sup {minus}}{bar {nu}}{sub {ital e}}{nu}{sub {tau}}. The data were taken with the High Resolution Spectrometer at the SLAC {ital {ital e}}{sup +}{ital e}{sup {minus}} colliding-beam facility PEP, operating at {radical}{ital s}=29 GeV. The result {ital B}({tau}{sup {minus}}{r arrow}{ital e}{sup {minus}}{bar {nu}}{sub {ital e}}{nu}{sub {tau}})=(17.0{plus minus}0.5{plus minus}0.5)%, together with our measurements of the lifetime and the topological branching fractions of the {tau} lepton are compared with theoretical expectations.

Published
1990

46. Forward-backward charge asymmetry ine+e−→hadron jets

Author

D. Stuart, R. E. Breedon, G. N. Kim, Winston Ko, R. L. Lander, K. Maeshima, R. L. Malchow, J. R. Smith, R. Imlay, P. Kirk, J. Lim, R. R. McNeil, W. Metcalf, S. S. Myung, C. P. Cheng, P. Gu, J. Li, Y. K. Li, M. H. Ye, Y. C. Zhu, A. Abashian, K. Gotow, K. P. Hu, E. H. Low, M. E. Mattson, L. Piilonen, K. L. Sterner, S. Lusin, C. Rosenfeld, A. T. M. Wang, S. Wilson, M. Frautschi, H. Kagan, R. Kass, C. G. Trahern, K. Abe, Y. Fujii, Y. Higashi, S. K. Kim, Y. Kurihara, A. Maki, T. Nozaki, T. Omori, H. Sagawa, Y. Sakai, Y. Sugimoto, Y. Takaiwa, S. Terada, R. Walker, F. Kajino, D. Perticone, R. Poling, T. Thomas, Y. Ishi, K. Miyano, H. Miyata, T. Sasaki, Y. Yamashita, A. Bacala, J. Liu, I. H. Park, F. Sannes, S. Schnetzer, R. Stone, J. Vinson, P. Auchincloss, D. Blanis, A. Bodek, H. Budd, S. Eno, C. A. Fry, H. Harada, Y. H. Ho, Y. K. Kim, T. Kumita, T. Mori, S. L. Olsen, N. M. Shaw, A. Sill, E. H. Thorndike, K. Ueno, H. W. Zheng, S. Kobayashi, A. Murakami, J. S. Kang, H. J. Kim, M. H. Lee, D. H. Han, E. J. Kim, D. Son, T. Kojima, S. Matsumoto, R. Tanaka, Y. Yamagishi, T. Yasuda, T. Ishizuka, and K. Ohta (The AMY Collaboration)

Subjects
Quark, Physics, Particle physics, Annihilation, High Energy Physics::Lattice, Computer Science::Information Retrieval, media_common.quotation_subject, High Energy Physics::Phenomenology, Hadron, General Physics and Astronomy, Elementary particle, Charge (physics), Asymmetry, Standard Model, Nuclear physics, High Energy Physics::Experiment, Production (computer science), media_common
Abstract

The forward-backward asymmetry of quarks produced in {ital e}{sup +}{ital e}{sup {minus}} annihilations, summed over all flavors, is measured at {radical}{ital s} between 50 and 60.8 GeV. Methods of determining the charge direction of jet pairs are discussed. The asymmetry is found to agree with the five-flavor standard model.

Published
1990

47. A search for SUSY particles in e +e − annihilations at s=50–60.8GeV

Author

K. Gotow, Y. Fujii, T. Mori, H. Kagan, H. Itoh, Yasuhiro Sugimoto, Y. T. Xu, A. Maki, E. H. Low, C. G. Trahern, T. Kumita, I. H. Park, Tsunehiko Omori, W. Metcalf, S. Matsumoto, Kazuo Abe, Z. P. Mao, S. Lusin, Y. K. Li, T. Ishizuka, J.S. Kang, A. Bacala, M. C.S. Williams, S. Kobayashi, R. C. Walker, M. Frautschi, H. Harada, Kaori Maeshima, Steve Schnetzer, A. T.M. Wang, A. Murakami, D. Perticone, P. Auchincloss, Y. Yamagishi, T. Kojima, S. Wilson, E.J. Kim, R. L. Lander, F. Sannes, G. N. Kim, T. Yasuda, P. N. Kirk, K. Ueno, J. Li, K. P. Hu, A. Bodek, M.H. Lee, Robert Stone, J. R. Smith, Hiroyuki Sagawa, Richard Breedon, Y. Yamashita, R. L. Malchow, Yusuke Higashi, R. L. Imlay, Yongsun Kim, C. P. Cheng, J. Vinson, R. D. Kass, D. Son, M. E. Mattson, N. M. Shaw, Y. Ishi, C. Rosenfeld, H. S. Budd, H. Miyata, Y. Sakai, Ryuki Tanaka, Y. Takaiwa, K. Toyoshima, T. Thomas, S. S. Myung, H. W. Zheng, R. Poling, A. Abashian, Yoshimasa Kurihara, Kazumasa Miyano, Sarah Catherine Eno, Susumu Terada, H. J. Kim, D. Blanis, K. L. Sterner, E. H. Thorndike, J. Lim, D.H. Han, P. Gu, H. Yokota, David Stuart, S. K. Kim, Y. C. Zhu, S. L. Olsen, F. Kajino, R. R. McNeil, A. Sill, C. A. Fry, K. Ohta, Y. H. Ho, L. E. Piilonen, M. H. Ye, KO Winston, T. Nozaki, and Takashi Sasaki

Subjects
Physics, Quark, Nuclear and High Energy Physics, Particle physics, Electron–positron annihilation, High Energy Physics::Phenomenology, Supersymmetry, lcsh:QC1-999, Nuclear physics, Pair production, Higgs boson, High Energy Physics::Experiment, lcsh:Physics, Lepton
Abstract

Searches for the pair production of the supersymmetric partner particles of leptons, quarks, and non-minimal Higgs have been made in e + e − annihilations at center-of-mass energies between 50 and 60.8 GeV using the AMY detector at TRISTAN. No evidence for their existence is observed and 95% CL mass limits are presented.

Published
1990

48. Efficacy and safety of oral desmopressin in the treatment of primary nocturnal enuresis in Asian children

Author

S. M. Chao, E. H. Low, Murugasu B, E. K. Ong, Yap Hk, and A. Y. S. Tan

Subjects
Male, medicine.medical_specialty, Pediatrics, Asia, Adolescent, Administration, Oral, Urinary incontinence, Renal Agents, Placebo, Double-Blind Method, Enuresis, Oral administration, medicine, Humans, Deamino Arginine Vasopressin, Child, Desmopressin, Analysis of Variance, Cross-Over Studies, business.industry, Crossover study, Surgery, Blood pressure, Pediatrics, Perinatology and Child Health, Urine osmolality, Female, medicine.symptom, business, medicine.drug
Abstract

Objective: To determine the efficacy and safety of oral desmopressin (DDAVP) treatment in Asian children with nocturnal enuresis. Methodology: This was a multicentre randomized placebo-controlled double-blind cross-over study. Patients were randomized to either active treatment with oral 400 mg DDAVP or placebo, with a 2-week medication-free period between the cross-over. Children with primary monosymptomatic nocturnal enuresis, aged between 7 and 18 years, with a minimum frequency of wetting of 6 nights or more during a 2-week observation period were recruited. Efficacy was measured by reduction in the average number of wet nights per week. Results: Of the 37 children initially recruited, the outcomes for 34 children were included in the final cross-over analysis, as they had complete data for both the treatment periods. Statistical analysis by anova showed that there was no significant difference between the medication-free period and the pretreatment period. However, the average number of wet nights per week for the DDAVP treatment period (2.5±2.7) was significantly lower than that of the placebo treatment period (4.5±2.1) (P

Published
1998

49. Quantifi cation of Wound Angiogenesis

Author

Luisa A. DiPietro and Quentin E. H. Low

Subjects
Text mining, Angiogenesis, business.industry, Medicine, Computational biology, business
Published
2003

50. Quantification of wound angiogenesis

Author

Quentin E H, Low and Luisa A, DiPietro

Subjects
Platelet Endothelial Cell Adhesion Molecule-1, Mice, Mice, Inbred BALB C, Wound Healing, Image Processing, Computer-Assisted, Animals, Neovascularization, Physiologic, Female, Immunohistochemistry
Published
2003

Catalog

Books, media, physical & digital resources
See catalog results