Phys. Rev. D
62,
031101(R)
(2000)
[6 pages]
Limits on quark compositeness from high energy jets in p̅ p collisions at 1.8 TeV
B. Abbott et al. (DØ Collaboration)
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B. Abbott48, M. Abolins45, V. Abramov21, B. S. Acharya15, D. L. Adams55, M. Adams32, V. Akimov19, G. A. Alves2, N. Amos44, E. W. Anderson37, M. M. Baarmand50, V. V. Babintsev21, L. Babukhadia50, A. Baden41, B. Baldin31, S. Banerjee15, J. Bantly54, E. Barberis24, P. Baringer38, J. F. Bartlett31, U. Bassler11, A. Bean38, A. Belyaev20, S. B. Beri13, G. Bernardi11, I. Bertram22, V. A. Bezzubov21, P. C. Bhat31, V. Bhatnagar13, M. Bhattacharjee50, G. Blazey33, S. Blessing29, A. Boehnlein31, N. I. Bojko21, F. Borcherding31, A. Brandt55, R. Breedon25, G. Briskin54, R. Brock45, G. Brooijmans31, A. Bross31, D. Buchholz34, M. Buehler32, V. Buescher49, V. S. Burtovoi21, J. M. Butler42, F. Canelli49, W. Carvalho3, D. Casey45, Z. Casilum50, H. Castilla-Valdez17, D. Chakraborty50, K. M. Chan49, S. V. Chekulaev21, D. K. Cho49, S. Choi28, S. Chopra51, B. C. Choudhary28, J. H. Christenson31, M. Chung32, D. Claes46, A. R. Clark24, J. Cochran28, L. Coney36, B. Connolly29, W. E. Cooper31, D. Coppage38, D. Cullen-Vidal54, M. A. C. Cummings33, D. Cutts54, O. I. Dahl24, K. Davis23, K. De55, K. Del Signore44, M. Demarteau31, D. Denisov31, S. P. Denisov21, H. T. Diehl31, M. Diesburg31, G. Di Loreto45, S. Doulas43, P. Draper55, Y. Ducros12, L. V. Dudko20, S. R. Dugad15, A. Dyshkant21, D. Edmunds45, J. Ellison28, V. D. Elvira31, R. Engelmann50, S. Eno41, G. Eppley57, P. Ermolov20, O. V. Eroshin21, J. Estrada49, H. Evans47, V. N. Evdokimov21, T. Fahland27, S. Feher31, D. Fein23, T. Ferbel49, H. E. Fisk31, Y. Fisyak51, E. Flattum31, F. Fleuret24, M. Fortner33, K. C. Frame45, S. Fuess31, E. Gallas31, A. N. Galyaev21, P. Gartung28, V. Gavrilov19, R. J. Genik, II22, K. Genser31, C. E. Gerber31, Y. Gershtein54, B. Gibbard51, R. Gilmartin29, G. Ginther49, B. Gómez5, G. Gómez41, P. I. Goncharov21, J. L. González Solís17, H. Gordon51, L. T. Goss56, K. Gounder28, A. Goussiou50, N. Graf51, P. D. Grannis50, J. A. Green37, H. Greenlee31, S. Grinstein1, P. Grudberg24, S. Grünendahl31, G. Guglielmo53, A. Gupta15, S. N. Gurzhiev21, G. Gutierrez31, P. Gutierrez53, N. J. Hadley41, H. Haggerty31, S. Hagopian29, V. Hagopian29, K. S. Hahn49, R. E. Hall26, P. Hanlet43, S. Hansen31, J. M. Hauptman37, C. Hays47, C. Hebert38, D. Hedin33, A. P. Heinson28, U. Heintz42, T. Heuring29, R. Hirosky32, J. D. Hobbs50, B. Hoeneisen8, J. S. Hoftun54, A. S. Ito31, S. A. Jerger45, R. Jesik35, T. Joffe-Minor34, K. Johns23, M. Johnson31, A. Jonckheere31, M. Jones30, H. Jöstlein31, A. Juste31, S. Kahn51, E. Kajfasz10, D. Karmanov20, D. Karmgard36, R. Kehoe36, S. K. Kim16, B. Klima31, C. Klopfenstein25, B. Knuteson24, W. Ko25, J. M. Kohli13, A. V. Kostritskiy21, J. Kotcher51, A. V. Kotwal47, A. V. Kozelov21, E. A. Kozlovsky21, J. Krane37, M. R. Krishnaswamy15, S. Krzywdzinski31, M. Kubantsev39, S. Kuleshov19, Y. Kulik50, S. Kunori41, G. Landsberg54, A. Leflat20, F. Lehner31, J. Li55, Q. Z. Li31, J. G. R. Lima3, D. Lincoln31, S. L. Linn29, J. Linnemann45, R. Lipton31, J. G. Lu4, A. Lucotte50, L. Lueking31, C. Lundstedt46, A. K. A. Maciel33, R. J. Madaras24, V. Manankov20, S. Mani25, H. S. Mao4, T. Marshall35, M. I. Martin31, R. D. Martin32, K. M. Mauritz37, B. May34, A. A. Mayorov35, R. McCarthy50, J. McDonald29, T. McMahon52, H. L. Melanson31, X. C. Meng4, M. Merkin20, K. W. Merritt31, C. Miao54, H. Miettinen57, D. Mihalcea53, A. Mincer48, C. S. Mishra31, N. Mokhov31, N. K. Mondal15, H. E. Montgomery31, M. Mostafa1, H. da Motta2, E. Nagy10, F. Nang23, M. Narain42, V. S. Narasimham15, H. A. Neal44, J. P. Negret5, S. Negroni10, D. Norman56, L. Oesch44, V. Oguri3, B. Olivier11, N. Oshima31, P. Padley57, L. J. Pan34, A. Para31, N. Parashar43, R. Partridge54, N. Parua9, M. Paterno49, A. Patwa50, B. Pawlik18, J. Perkins55, M. Peters30, R. Piegaia1, H. Piekarz29, B. G. Pope45, E. Popkov36, H. B. Prosper29, S. Protopopescu51, J. Qian44, P. Z. Quintas31, R. Raja31, S. Rajagopalan51, N. W. Reay39, S. Reucroft43, M. Rijssenbeek50, T. Rockwell45, M. Roco31, P. Rubinov31, R. Ruchti36, J. Rutherfoord23, A. Santoro2, L. Sawyer40, R. D. Schamberger50, H. Schellman34, A. Schwartzman1, J. Sculli48, N. Sen57, E. Shabalina20, H. C. Shankar15, R. K. Shivpuri14, D. Shpakov50, M. Shupe23, R. A. Sidwell39, V. Simak7, H. Singh28, J. B. Singh13, V. Sirotenko33, P. Slattery49, E. Smith53, R. P. Smith31, R. Snihur34, G. R. Snow46, J. Snow52, S. Snyder51, J. Solomon32, X. F. Song4, V. Sorín1, M. Sosebee55, N. Sotnikova20, K. Soustruznik6, M. Souza2, N. R. Stanton39, G. Steinbrück47, R. W. Stephens55, M. L. Stevenson24, F. Stichelbaut51, D. Stoker27, V. Stolin19, D. A. Stoyanova21, M. Strauss53, K. Streets48, M. Strovink24, L. Stutte31, A. Sznajder3, W. Taylor50, S. Tentindo-Repond29, T. L. T. Thomas34, J. Thompson41, D. Toback41, T. G. Trippe24, A. S. Turcot44, P. M. Tuts47, P. van Gemmeren31, V. Vaniev21, R. Van Kooten35, N. Varelas32, A. A. Volkov21, A. P. Vorobiev21, H. D. Wahl29, H. Wang34, J. Warchol36, G. Watts58, M. Wayne36, H. Weerts45, A. White55, J. T. White56, D. Whiteson24, J. A. Wightman37, S. Willis33, S. J. Wimpenny28, J. V. D. Wirjawan56, J. Womersley31, D. R. Wood43, R. Yamada31, P. Yamin51, T. Yasuda31, K. Yip31, S. Youssef29, J. Yu31, Z. Yu34, M. Zanabria5, H. Zheng36, Z. Zhou37, Z. H. Zhu49, M. Zielinski49, D. Zieminska35, A. Zieminski35, V. Zutshi49, E. G. Zverev20, and A. Zylberstejn12 (DØ Collaboration)
1Universidad de Buenos Aires, Buenos Aires, Argentina
2LAFEX, Centro Brasileiro de Pesquisas Físicas, Rio de Janeiro, Brazil
3Universidade do Estado do Rio de Janeiro, Rio de Janeiro, Brazil
4Institute of High Energy Physics, Beijing, People’s Republic of China
5Universidad de los Andes, Bogotá, Colombia
6Charles University, Prague, Czech Rebublic
7Institute of Physics, Academy of Sciences, Prague, Czech Republic
8Universidad San Francisco de Quito, Quito, Ecuador
9Institut des Sciences Nucléaires, IN2P3-CNRS, Universite de Grenoble 1, Grenoble, France
10CPPM, IN2P3-CNRS, Université de la Méditerranée, Marseille, France
11LPNHE, Universités Paris VI and VII, IN2P3-CNRS, Paris, France
12DAPNIA/Service de Physique des Particules, CEA, Saclay, France
13Panjab University, Chandigarh, India
14Delhi University, Delhi, India
15Tata Institute of Fundamental Research, Mumbai, India
16Seoul National University, Seoul, Korea
17CINVESTAV, Mexico City, Mexico
18Institute of Nuclear Physics, Kraków, Poland
19Institute for Theoretical and Experimental Physics, Moscow, Russia
20Moscow State University, Moscow, Russia
21Institute for High Energy Physics, Protvino, Russia
22Lancaster University, Lancaster, United Kingdom
23University of Arizona, Tucson, Arizona 85721
24Lawrence Berkeley National Laboratory and University of California, Berkeley, California 94720
25University of California, Davis, California 95616
26California State University, Fresno, California 93740
27University of California, Irvine, California 92697
28University of California, Riverside, California 92521
29Florida State University, Tallahassee, Florida 32306
30University of Hawaii, Honolulu, Hawaii 96822
31Fermi National Accelerator Laboratory, Batavia, Illinois 60510
32University of Illinois at Chicago, Chicago, Illinois 60607
33Northern Illinois University, DeKalb, Illinois 60115
34Northwestern University, Evanston, Illinois 60208
35Indiana University, Bloomington, Indiana 47405
36University of Notre Dame, Notre Dame, Indiana 46556
37Iowa State University, Ames, Iowa 50011
38University of Kansas, Lawrence, Kansas 66045
39Kansas State University, Manhattan, Kansas 66506
40Louisiana Tech University, Ruston, Louisiana 71272
41University of Maryland, College Park, Maryland 20742
42Boston University, Boston, Massachusetts 02215
43Northeastern University, Boston, Massachusetts 02115
44University of Michigan, Ann Arbor, Michigan 48109
45Michigan State University, East Lansing, Michigan 48824
46University of Nebraska, Lincoln, Nebraska 68588
47Columbia University, New York, New York 10027
48New York University, New York, New York 10003
49University of Rochester, Rochester, New York 14627
50State University of New York, Stony Brook, New York 11794
51Brookhaven National Laboratory, Upton, New York 11973
52Langston University, Langston, Oklahoma 73050
53University of Oklahoma, Norman, Oklahoma 73019
54Brown University, Providence, Rhode Island 02912
55University of Texas, Arlington, Texas 76019
56Texas A&M University, College Station, Texas 77843
57Rice University, Houston, Texas 77005
58University of Washington, Seattle, Washington 98195
Received 16 December 1999; published 27 June 2000
Events in p̅ p collisions at √s=1.8 TeV with total transverse energy exceeding 500 GeV are used to set limits on quark substructure. The data are consistent with next-to-leading order QCD calculations. We set a lower limit of 2.0 TeV at 95% confidence on the energy scale ΛLL for compositeness in quarks, assuming a model with a left-left isoscalar contact interaction term. The limits on ΛLL are found to be insensitive to the sign of the interference term in the Lagrangian.
© 2000 The American Physical Society
URL:
http://link.aps.org/doi/10.1103/PhysRevD.62.031101
DOI:
10.1103/PhysRevD.62.031101
PACS:
12.38.Qk, 12.60.Rc, 13.85.Rm
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