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Search for leptoquark pairs decaying to $\nu\nu$ + jets in $p\bar p$ collisions at $\sqrt s$ = 1.8 TeV

V.M. Abazov B. Abbott Abdelmalek Abdesselam M. Abolins V. Abramov B.S. Acharya D.L. Adams M. Adams S.N. Ahmed G.D. Alexeev A. Alton G.A. Alves N. Amos E.W. Anderson Y. Arnoud 1 C. Avila M.M. Baarmand V.V. Babintsev L. Babukhadia T.C. Bacon A. Baden B. Baldin P.W. Balm S. Banerjee E. Barberis P. Baringer J. Barreto J.F. Bartlett U. Bassler 2 D. Bauer A. Bean F. Beaudette 3 M. Begel A. Belyaev S.B. Beri G. Bernardi 2 I. Bertram A. Besson 1 R. Beuselinck V.A. Bezzubov P.C. Bhat V. Bhatnagar M. Bhattacharjee G. Blazey F. Blekman S. Blessing A. Boehnlein N.I. Bojko F. Borcherding K. Bos T. Bose A. Brandt R. Breedon G. Briskin R. Brock G. Brooijmans A. Bross D. Buchholz M. Buehler V. Buescher V.S. Burtovoi J.M. Butler F. Canelli W. Carvalho D. Casey Z. Casilum H. Castilla-Valdez D. Chakraborty K.M. Chan S.V. Chekulaev D.K. Cho S. Choi S. Chopra J.H. Christenson M. Chung D. Claes A.R. Clark L. Coney B. Connolly W.E. Cooper D. Coppage S. Crepe-Renaudin 1 M.A.C. Cummings D. Cutts G.A. Davis K. Davis K. De S.J. de Jong K. del Signore M. Demarteau R. Demina P. Demine 1 D. Denisov S.P. Denisov S. Desai H.T. Diehl M. Diesburg S. Doulas Y. Ducros L.V. Dudko S. Duensing L. Duflot 3 S.R. Dugad A. Duperrin 4 A. Dyshkant D. Edmunds J. Ellison J.T. Eltzroth V.D. Elvira R. Engelmann S. Eno G. Eppley P. Ermolov O.V. Eroshin J. Estrada H. Evans V.N. Evdokimov T. Fahland S. Feher D. Fein T. Ferbel F. Filthaut H.E. Fisk Y. Fisyak E. Flattum F. Fleuret M. Fortner H. Fox K.C. Frame S. Fu S. Fuess E. Gallas A.N. Galyaev M. Gao V. Gavrilov R.J. Genik K. Genser C.E. Gerber Y. Gershtein R. Gilmartin G. Ginther B. Gomez G. Gomez P.I. Goncharov J.L. Gonzalez Solis H. Gordon L.T. Goss K. Gounder A. Goussiou N. Graf G. Graham P.D. Grannis J.A. Green H. Greenlee Z.D. Greenwood S. Grinstein L. Groer S. Grunendahl Anupam Gupta S.N. Gurzhev G. Gutierrez P. Gutierrez N.J. Hadley H. Haggerty S. Hagopian V. Hagopian R.E. Hall P. Hanlet Scott Hansen J.M. Hauptman C. Hays Christian Hebert D. Hedin J.M. Heinmiller A.P. Heinson U. Heintz M.D. Hildreth R. Hirosky J.D. Hobbs B. Hoeneisen Yue Huang I. Iashvili R. Illingworth A.S. Ito M. Jaffre 3 S. Jain R. Jesik K. Johns M. Johnson A. Jonckheere H. Jostlein A. Juste W. Kahl S. Kahn E. Kajfasz 4 A.M. Kalinin D. Karmanov D. Karmgard R. Kehoe A. Khanov A. Kharchilava S.K. Kim B. Klima B. Knuteson W. Ko J.M. Kohli A.V. Kostritskiy J. Kotcher B. Kothari A.V. Kotwal A.V. Kozelov E.A. Kozlovsky J. Krane M.R. Krishnaswamy P. Krivkova S. Krzywdzinski M. Kubantsev S. Kuleshov Y. Kulik S. Kunori A. Kupco V.E. Kuznetsov G. Landsberg W.M. Lee A. Leflat C. Leggett F. Lehner C. Leonidopoulos J. Li Q.Z. Li Xiaojian Li D. Lincoln S.L. Linn J. Linnemann R. Lipton A. Lucotte 1 L. Lueking C. Lundstedt C. Luo R.J. Madaras V.L. Malyshev V. Manankov H.S. Mao T. Marshall M.I. Martin K.M. Mauritz A.A. Mayorov R. Mccarthy T. Mcmahon H.L. Melanson M. Merkin K.W. Merritt C. Miao H. Miettinen D. Mihalcea C.S. Mishra N. Mokhov N.K. Mondal H.E. Montgomery R.W. Moore M. Mostafa H. da Motta E. Nagy 4 F. Nang M. Narain V.S. Narasimham N.A. Naumann H.A. Neal J.P. Negret S. Negroni 4 T. Nunnemann D. O'Neil V. Oguri B. Olivier 2 N. Oshima P. Padley L.J. Pan K. Papageorgiou A. Para N. Parashar R. Partridge N. Parua M. Paterno A. Patwa B. Pawlik J. Perkins O. Peters P. Petroff 3 R. Piegaia B.G. Pope E. Popkov H.B. Prosper S. Protopopescu M.B. Przybycien J. Qian R. Raja S. Rajagopalan E. Ramberg P.A. Rapidis N.W. Reay S. Reucroft M. Ridel M. Rijssenbeek F. Rizatdinova T. Rockwell M. Roco C. Royon P. Rubinov R. Ruchti J. Rutherfoord B.M. Sabirov G. Sajot 1 A. Santoro L. Sawyer R.D. Schamberger H. Schellman A. Schwartzman N. Sen E. Shabalina R.K. Shivpuri D. Shpakov M. Shupe R.A. Sidwell V. Simak H. Singh J.B. Singh V. Sirotenko P. Slattery E. Smith R.P. Smith R. Snihur G.R. Snow J. Snow S. Snyder J. Solomon Y. Song V. Sorin M. Sosebee N. Sotnikova K. Soustruznik M. Souza N.R. Stanton G. Steinbruck R.W. Stephens F. Stichelbaut D. Stoker V. Stolin A. Stone D.A. Stoyanova M.A. Strang M. Strauss M. Strovink L. Stutte A. Sznajder M. Talby 4 W. Taylor S. Tentindo-Repond S.M. Tripathi T.G. Trippe A.S. Turcot P.M. Tuts V. Vanev R. van Kooten N. Varelas L.S. Vertogradov F. Villeneuve-Seguier 4 A.A. Volkov A.P. Vorobev H.D. Wahl H. Wang Z.M. Wang J. Warchol G. Watts M. Wayne H. Weerts A. White J.T. White D. Whiteson D.A. Wijngaarden S. Willis S.J. Wimpenny J. Womersley D.R. Wood Q. Xu R. Yamada P. Yamin T. Yasuda Y.A. Yatsunenko K. Yip S. Youssef J. Yu Z. Yu M. Zanabria X. Zhang H. Zheng B. Zhou Z. Zhou M. Zielinski D. Zieminska A. Zieminski V. Zutshi E.G. Zverev A. Zylberstejn
Abstract : We present the results of a search for leptoquark (LQ) pairs in (85.2 +- 3.7) pb^{-1} of p anti-p collider data collected by the D0 experiment at the Fermilab Tevatron. We observe no evidence for leptoquark production and set a limit on sigma(p anti-p -> LQ anti-LQ -> neutrino neutrino + jets) as a function of the mass of the leptoquark (m_{LQ}). Assuming the decay LQ -> neutrino q, we exclude scalar leptoquarks for m_{LQ} < 98 GeV/c^2, and vector leptoquarks for m_{LQ} < 200 GeV/c^2 and coupling which produces the minimum cross section, at a 95% confidence level.
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V.M. Abazov, B. Abbott, Abdelmalek Abdesselam, M. Abolins, V. Abramov, et al.. Search for leptoquark pairs decaying to $\nu\nu$ + jets in $p\bar p$ collisions at $\sqrt s$ = 1.8 TeV. Physical Review Letters, American Physical Society, 2002, 88, 191801-(7 p.). ⟨in2p3-00011449⟩

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