Phys. Rev. Lett.
71,
2542–2546
(1993)
Search for quark compositeness, axigluons, and heavy particles using the dijet invariant mass spectrum observed in pp¯ collisions
F. Abe et al.
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F. Abe, M. Albrow, H. Akimoto, 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, D. Benton, A. Beretvas, J. P. Berge, S. Bertolucci, A. Bhatti, K. Biery, M. Binkley, F. Bird, D. Bisello, R. E. Blair, C. Blocker, A. Bodek, V. Bolognesi, D. Bortoletto, C. Boswell, T. Boulos, G. Brandenburg, C. Bromberg, 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. Conway, J. Cooper, M. Cordelli, D. P. Coupal, D. Crane, J. D. Cunningham, T. Daniels, M. Deninno, F. DeJongh, S. Dell’Agnello, M. Dell’Orso, L. Demortier, B. Denby, P. F. Derwent, T. Devlin, M. Dickson, J. P. Done, R. B. Drucker, A. Dunn, K. Einsweiler, J. E. Elias, E. Engels, Jr., R. Ely, 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. Freidman, H. Frisch, A. Fry, T. A. Fuess, Y. Fukui, S. Funaki, A. F. Garfinkel, S. Geer, D. W. Gerdes, P. Giannetti, N. Giokaris, P. Giormini, L. Gladney, D. Glenzinski, M. Gold, J. Gonzalez, A. T. Goshaw, K. Goulianos, H. Grassmann, 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. Hipple, R. Hollebeek, A. Hölscher, S. Hong, G. Houk, P. Hu, J. Huston, B. T. Huffman, R. Hughes, P. 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, R. M. Keup, H. Keutelian, F. Keyvan, D. H. Kim, 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, P. Maksimovic, M. Mangano, J. Mansour, M. Mariotti, J. P. Marriner, A. Martin, J. A. J. Matthews, R. Mattingly, P. McIntyre, P. Melese, A. Menzione, E. Meschi, S. Mikamo, M. Miller, R. 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, J. Proudfoot, N. Produit, 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. Singh, P. Sinervo, 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, K. Strahl, G. Sullivan, K. Sumorok, R. L. Swartz, Jr., T. Takahashi, K. Takikawa, 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, F. Ukegawa, G. Unal, N. Uemura, S. Vejcik, III, R. Vidal, M. Vondracek, R. G. Wagner, R. L. Wagner, N. Wainer, R. C. Walker, J. Wang, Q. Wang, A. Warburton, G. Watts, T. Watts, R. Webb, C. Wendt, H. Wenzel, W. C. Wester, III, 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, L. Zhang, S. Zhang, W. Zhang, and S. Zucchelli
Argonne National Laboratory, Argonne, Illinois 60439
Brandeis University, Waltham, Massachusetts 02254
Istituto Nazionale di Fisica Nucleare, University of Bologna, I-40126 Bologna, Italy
University of California at Los Angeles, Los Angeles, California 90024
University of Chicago, Chicago, Illinois 60637
Duke University, Durham, North Carolina 27708
Fermi National Accelerator Laboratory, Batavia, Illinois 60510
Laboratori Nazionale di Frascati, Istituo Nazionale di Fisica Nucleare, I-00044 Frascati, Italy
Harvard University, Cambridge, Massachusetts 02138
University of Illinois, Urbana, Illinois 61801
Institute of Particle Physics, McGill University, Montreal H3A 2T8 and University of Toronto, Toronto Canada M5S 1A7
The Johns Hopkins University, Baltimore, Maryland 21218
National Laboratory for High Energy Physics (KEK), Tsukuba, Ibaraki 305, Japan
Lawrence Berkeley Laboratory, Berkeley, California 94720
Massachusetts Institute of Technology, Cambridge, Massachusetts 02139
University of Michigan, Ann Arbor, Michigan 48109
Michigan State University, East Lansing, Michigan 48824
University of New Mexico, Albuquerque, New Mexico 87131
Osaka City University, Osaka 588, Japan
Universita di Padova, Istituto Nazionale di Fisica Nucleare, Sezione di Padova, I-35131 Padova, Italy
University of Pennsylvania, Philadelphia, Pennsylvania 19104
University of Pittsburgh, Pittsburgh, Pennsylvania 15260
Istituto Nazionale di Fisica Nucleare, University and Scuola Normale Superiore of Pisa, I-56100 Pisa, Italy
Purdue University, West Lafayette, Indiana 47907
University of Rochester, Rochester, New York 14627
Rockefeller University, New York, New York 10021
Rutgers University, Piscataway, New Jersey 08854
Superconducting Super Collider Laboratory, Dallas, Texas 75237
Texas A&M University, College Station, Texas 77843
University of Tsukuba, Tsukuba, Ibaraki 305, Japan
Tufts University, Medford, Massachusetts 02155
University of Wisconsin, Madison, Wisconsin 53706
Yale University, New Haven, Connecticut 06511
Received 18 June 1993; published in the issue dated 18 October 1993
The dijet invariant mass distribution has been measured in the region between 140 and 1000 GeV/c2, in 1.8 TeV p p¯ collisions. Data collected with the Collider Detector at Fermilab show agreement with QCD calculations. A limit on quark compositeness of Λc>1.3 TeV is obtained. Axigluons with masses between 240 and 640 GeV/c2 are excluded at 95% C.L. if we assume ten open decay channels. Model-independent limits on the production of heavy particles decaying into two jets are also presented.
© 1993 The American Physical Society
URL:
http://link.aps.org/doi/10.1103/PhysRevLett.71.2542
DOI:
10.1103/PhysRevLett.71.2542
PACS:
13.85.Rm, 12.38.Qk, 13.85.Ni, 13.87.Ce
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