Phys. Rev. D
62,
092004
(2000)
[19 pages]
Search for new physics in eμX data at DØ using SLEUTH: A quasi-model-independent search strategy for new physics
B. Abbott et al. (DØ Collaboration)
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B. Abbott49, M. Abolins46, V. Abramov22, B. S. Acharya15, D. L. Adams56, M. Adams33, G. A. Alves2, N. Amos45, E. W. Anderson38, M. M. Baarmand51, V. V. Babintsev22, L. Babukhadia51, A. Baden42, B. Baldin32, S. Banerjee15, J. Bantly55, E. Barberis25, P. Baringer39, J. F. Bartlett32, U. Bassler11, A. Bean39, M. Begel50, A. Belyaev21, S. B. Beri13, G. Bernardi11, I. Bertram23, A. Besson9, V. A. Bezzubov22, P. C. Bhat32, V. Bhatnagar13, M. Bhattacharjee51, G. Blazey34, S. Blessing30, A. Boehnlein32, N. I. Bojko22, F. Borcherding32, A. Brandt56, R. Breedon26, G. Briskin55, R. Brock46, G. Brooijmans32, A. Bross32, D. Buchholz35, M. Buehler33, V. Buescher50, V. S. Burtovoi22, J. M. Butler43, F. Canelli50, W. Carvalho3, D. Casey46, Z. Casilum51, H. Castilla-Valdez17, D. Chakraborty51, K. M. Chan50, S. V. Chekulaev22, D. K. Cho50, S. Choi29, S. Chopra52, B. C. Choudhary29, J. H. Christenson32, M. Chung33, D. Claes47, A. R. Clark25, J. Cochran29, L. Coney37, B. Connolly30, W. E. Cooper32, D. Coppage39, M. A. C. Cummings34, D. Cutts55, O. I. Dahl25, G. A. Davis50, K. Davis24, K. De56, K. Del Signore45, M. Demarteau32, R. Demina40, P. Demine9, D. Denisov32, S. P. Denisov22, H. T. Diehl32, M. Diesburg32, G. Di Loreto46, S. Doulas44, P. Draper56, Y. Ducros12, L. V. Dudko21, S. R. Dugad15, A. Dyshkant22, D. Edmunds46, J. Ellison29, V. D. Elvira32, R. Engelmann51, S. Eno42, G. Eppley58, P. Ermolov21, O. V. Eroshin22, J. Estrada50, H. Evans48, V. N. Evdokimov22, T. Fahland28, S. Feher32, D. Fein24, T. Ferbel50, F. Filthaut18, H. E. Fisk32, Y. Fisyak52, E. Flattum32, F. Fleuret25, M. Fortner34, K. C. Frame46, S. Fuess32, E. Gallas32, A. N. Galyaev22, P. Gartung29, V. Gavrilov20, R. J. Genik, II23, K. Genser32, C. E. Gerber32, Y. Gershtein55, B. Gibbard52, R. Gilmartin30, G. Ginther50, B. Gómez5, G. Gómez42, P. I. Goncharov22, J. L. González Solís17, H. Gordon52, L. T. Goss57, K. Gounder29, A. Goussiou51, N. Graf52, P. D. Grannis51, J. A. Green38, H. Greenlee32, S. Grinstein1, P. Grudberg25, S. Grünendahl32, A. Gupta15, S. N. Gurzhiev22, G. Gutierrez32, P. Gutierrez54, N. J. Hadley42, H. Haggerty32, S. Hagopian30, V. Hagopian30, K. S. Hahn50, R. E. Hall27, P. Hanlet44, S. Hansen32, J. M. Hauptman38, C. Hays48, C. Hebert39, D. Hedin34, A. P. Heinson29, U. Heintz43, T. Heuring30, R. Hirosky33, J. D. Hobbs51, B. Hoeneisen8, J. S. Hoftun55, A. S. Ito32, S. A. Jerger46, R. Jesik36, K. Johns24, M. Johnson32, A. Jonckheere32, M. Jones31, H. Jöstlein32, A. Juste32, S. Kahn52, E. Kajfasz10, D. Karmanov21, D. Karmgard37, R. Kehoe37, S. K. Kim16, B. Klima32, C. Klopfenstein26, B. Knuteson25, W. Ko26, J. M. Kohli13, A. V. Kostritskiy22, J. Kotcher52, A. V. Kotwal48, A. V. Kozelov22, E. A. Kozlovsky22, J. Krane38, M. R. Krishnaswamy15, S. Krzywdzinski32, M. Kubantsev40, S. Kuleshov20, Y. Kulik51, S. Kunori42, V. Kuznetsov29, G. Landsberg55, A. Leflat21, F. Lehner32, J. Li56, Q. Z. Li32, J. G. R. Lima3, D. Lincoln32, S. L. Linn30, J. Linnemann46, R. Lipton32, A. Lucotte51, L. Lueking32, C. Lundstedt47, A. K. A. Maciel34, R. J. Madaras25, V. Manankov21, S. Mani26, H. S. Mao4, T. Marshall36, M. I. Martin32, R. D. Martin33, K. M. Mauritz38, B. May35, A. A. Mayorov36, R. McCarthy51, J. McDonald30, T. McMahon53, H. L. Melanson32, X. C. Meng4, M. Merkin21, K. W. Merritt32, C. Miao55, H. Miettinen58, D. Mihalcea54, A. Mincer49, C. S. Mishra32, N. Mokhov32, N. K. Mondal15, H. E. Montgomery32, M. Mostafa1, H. da Motta2, E. Nagy10, F. Nang24, M. Narain43, V. S. Narasimham15, H. A. Neal45, J. P. Negret5, S. Negroni10, D. Norman57, L. Oesch45, V. Oguri3, B. Olivier11, N. Oshima32, P. Padley58, L. J. Pan35, A. Para32, N. Parashar44, R. Partridge55, N. Parua9, M. Paterno50, A. Patwa51, B. Pawlik19, J. Perkins56, M. Peters31, R. Piegaia1, H. Piekarz30, B. G. Pope46, E. Popkov37, H. B. Prosper30, S. Protopopescu52, J. Qian45, P. Z. Quintas32, R. Raja32, S. Rajagopalan52, E. Ramberg32, N. W. Reay40, S. Reucroft44, J. Rha29, M. Rijssenbeek51, T. Rockwell46, M. Roco32, P. Rubinov32, R. Ruchti37, J. Rutherfoord24, A. Santoro2, L. Sawyer41, R. D. Schamberger51, H. Schellman35, A. Schwartzman1, J. Sculli49, N. Sen58, E. Shabalina21, H. C. Shankar15, R. K. Shivpuri14, D. Shpakov51, M. Shupe24, R. A. Sidwell40, V. Simak7, H. Singh29, J. B. Singh13, V. Sirotenko34, P. Slattery50, E. Smith54, R. P. Smith32, R. Snihur35, G. R. Snow47, J. Snow53, S. Snyder52, J. Solomon33, V. Sorín1, M. Sosebee56, N. Sotnikova21, K. Soustruznik6, M. Souza2, N. R. Stanton40, G. Steinbrück48, R. W. Stephens56, M. L. Stevenson25, F. Stichelbaut52, D. Stoker28, V. Stolin20, D. A. Stoyanova22, M. Strauss54, K. Streets49, M. Strovink25, L. Stutte32, A. Sznajder3, W. Taylor51, S. Tentindo-Repond30, J. Thompson42, D. Toback42, T. G. Trippe25, A. S. Turcot52, P. M. Tuts48, P. van Gemmeren32, V. Vaniev22, R. Van Kooten36, N. Varelas33, A. A. Volkov22, A. P. Vorobiev22, H. D. Wahl30, H. Wang35, Z.-M. Wang51, J. Warchol37, G. Watts59, M. Wayne37, H. Weerts46, A. White56, J. T. White57, D. Whiteson25, J. A. Wightman38, S. Willis34, S. J. Wimpenny29, J. V. D. Wirjawan57, J. Womersley32, D. R. Wood44, R. Yamada32, P. Yamin52, T. Yasuda32, K. Yip32, S. Youssef30, J. Yu32, Z. Yu35, M. Zanabria5, H. Zheng37, Z. Zhou38, Z. H. Zhu50, M. Zielinski50, D. Zieminska36, A. Zieminski36, V. Zutshi50, E. G. Zverev21, 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 Republic
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
18University of Nijmegen/NIKHEF, Nijmegen, The Netherlands
19Institute of Nuclear Physics, Kraków, Poland
20Institute for Theoretical and Experimental Physics, Moscow, Russia
21Moscow State University, Moscow, Russia
22Institute for High Energy Physics, Protvino, Russia
23Lancaster University, Lancaster, United Kingdom
24University of Arizona, Tucson, Arizona 85721
25Lawrence Berkeley National Laboratory and University of California, Berkeley, California 94720
26University of California, Davis, California 95616
27California State University, Fresno, California 93740
28University of California, Irvine, California 92697
29University of California, Riverside, California 92521
30Florida State University, Tallahassee, Florida 32306
31University of Hawaii, Honolulu, Hawaii 96822
32Fermi National Accelerator Laboratory, Batavia, Illinois 60510
33University of Illinois at Chicago, Chicago, Illinois 60607
34Northern Illinois University, DeKalb, Illinois 60115
35Northwestern University, Evanston, Illinois 60208
36Indiana University, Bloomington, Indiana 47405
37University of Notre Dame, Notre Dame, Indiana 46556
38Iowa State University, Ames, Iowa 50011
39University of Kansas, Lawrence, Kansas 66045
40Kansas State University, Manhattan, Kansas 66506
41Louisiana Tech University, Ruston, Louisiana 71272
42University of Maryland, College Park, Maryland 20742
43Boston University, Boston, Massachusetts 02215
44Northeastern University, Boston, Massachusetts 02115
45University of Michigan, Ann Arbor, Michigan 48109
46Michigan State University, East Lansing, Michigan 48824
47University of Nebraska, Lincoln, Nebraska 68588
48Columbia University, New York, New York 10027
49New York University, New York, New York 10003
50University of Rochester, Rochester, New York 14627
51State University of New York, Stony Brook, New York 11794
52Brookhaven National Laboratory, Upton, New York 11973
53Langston University, Langston, Oklahoma 73050
54University of Oklahoma, Norman, Oklahoma 73019
55Brown University, Providence, Rhode Island 02912
56University of Texas, Arlington, Texas 76019
57Texas A&M University, College Station, Texas 77843
58Rice University, Houston, Texas 77005
59University of Washington, Seattle, Washington 98195
Received 12 June 2000; published 11 October 2000
We present a quasi-model-independent search for the physics responsible for electroweak symmetry breaking. We define final states to be studied, and construct a rule that identifies a set of relevant variables for any particular final state. A new algorithm (“SLEUTH”) searches for regions of excess in those variables and quantifies the significance of any detected excess. After demonstrating the sensitivity of the method, we apply it to the semi-inclusive channel eμX collected in 108 pb-1 of pp̅ collisions at √s=1.8 TeV at the DØ experiment during 1992–1996 at the Fermilab Tevatron. We find no evidence of new high pT physics in this sample.
© 2000 The American Physical Society
URL:
http://link.aps.org/doi/10.1103/PhysRevD.62.092004
DOI:
10.1103/PhysRevD.62.092004
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