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Search for R-parity violating supersymmetry in the dielectron channel

B. Abbott M. Abolins V. Abramov B.S. Acharya I. Adam D.L. Adams M. Adams S. Ahn V. Akimov G.A. Alves N. Amos E.W. Anderson M.M. Baarmand V.V. Babintsev L. Babukhadia A. Baden B. Baldin S. Banerjee J. Bantly E. Barberis P. Baringer J.F. Bartlett A. Belyaev S.B. Beri I. Bertram V.A. Bezzubov P.C. Bhat V. Bhatnagar M. Bhattacharjee G. Blazey S. Blessing P. Bloom A. Boehnlein N.I. Bozhko F. Borcherding C. Boswell A. Brandt R. Breedon G. Briskin R. Brock A. Bross D. Buchholz V.S. Burtovoi J.M. Butler W. Carvalho D. Casey Z. Casilum H. Castilla-Valdez D. Chakraborty S.V. Chekulaev W. Chen S. Choi S. Chopra B.C. Choudhary J.H. Christenson M. Chung D. Claes A.R. Clark W.G. Cobau J. Cochran L. Coney W.E. Cooper D. Coppage C. Cretsinger D. Cullen-Vidal M.A.C. Cummings D. Cutts O.I. Dahl K. Davis K. De K. del Signore M. Demarteau D. Denisov S.P. Denisov H.T. Diehl M. Diesburg G. Diloreto P. Draper Y. Ducros L.V. Dudko S.R. Dugad A. Dyshkant D. Edmunds J. Ellison V.D. Elvira R. Engelmann S. Eno G. Eppley P. Ermolov O.V. Eroshin H. Evans V.N. Evdokimov T. Fahland M.K. Fatyga S. Feher D. Fein T. Ferbel H.E. Fisk Yu. Fisyak E. Flattum G.E. Forden M. Fortner K.C. Frame S. Fuess E. Gallas A.N. Galyaev P. Gartung V. Gavrilov T.L. Geld R.J. Genik K. Genser C.E. Gerber Y. Gershtein B. Gibbard B. Gobbi B. Gomez G. Gomez P.I. Goncharov J.L. Gonzalez Solis H. Gordon L.T. Goss K. Gounder A. Goussiou N. Graf P.D. Grannis D.R. Green J.A. Green H. Greenlee S. Grinstein P. Grudberg S. Grunendahl G. Guglielmo J.A. Guida J.M. Guida Anupam Gupta S.N. Gurzhev G. Gutierrez P. Gutierrez N.J. Hadley H. Haggerty S. Hagopian V. Hagopian K.S. Hahn R.E. Hall P. Hanlet Scott Hansen J.M. Hauptman C. Hays Christian Hebert D. Hedin A.P. Heinson U. Heintz R. Hernandez-Montoya T. Heuring R. Hirosky J.D. Hobbs B. Hoeneisen J.S. Hoftun F. Hsieh Tong. Hu A.S. Ito S.A. Jerger R. Jesik T. Joffe-Minor K. Johns M. Johnson A. Jonckheere M. Jones H. Jostlein S.Y. Jun C.K. Jung S. Kahn D. Karmanov D. Karmgard R. Kehoe S.K. Kim B. Klima C. Klopfenstein B. Knuteson W. Ko J.M. Kohli D. Koltick A.V. Kostritskii J. Kotcher A.V. Kotwal A.V. Kozelov E.A. Kozlovskii J. Krane M.R. Krishnaswamy S. Krzywdzinski M. Kubantsev S. Kuleshov Y. Kulik S. Kunori F. Landry G. Landsberg A. Leflat J. Li Q.Z. Li J.G.R. Lima D. Lincoln S.L. Linn J. Linnemann R. Lipton A. Lucotte L. Lueking A.K.A. Maciel R.J. Madaras R. Madden L. Magana-Mendoza V. Manankov S. Mani H.S. Mao R. Markeloff T. Marshall M.I. Martin R.D. Martin K.M. Mauritz B. May A.A. Mayorov R. Mccarthy J. Mcdonald T. Mckibben J. Mckinley T. Mcmahon H.L. Melanson M. Merkin K.W. Merritt C. Miao H. Miettinen A. Mincer C.S. Mishra N. Mokhov N.K. Mondal H.E. Montgomery M. Mostafa H. da Motta C. Murphy F. Nang M. Narain V.S. Narasimham A. Narayanan H.A. Neal J.P. Negret P. Nemethy D. Norman L. Oesch V. Oguri N. Oshima D. Owen P. Padley A. Para N. Parashar Y.M. Park R. Partridge N. Parua 1 M. Paterno B. Pawlik J. Perkins M. Peters R. Piegaia H. Piekarz Yu. Pishchalnikov B.G. Pope H.B. Prosper S. Protopopescu J. Qian P.Z. Quintas R. Raja S. Rajagopalan O. Ramirez N.W. Reay S. Reucroft M. Rijssenbeek T. Rockwell M. Roco P. Rubinov R. Ruchti J. Rutherfoord A. Sanchez-Hernandez A. Santoro L. Sawyer R.D. Schamberger H. Schellman J. Sculli E. Shabalina C. Shaffer H.C. Shankar R.K. Shivpuri D. Shpakov M. Shupe R.A. Sidwell H. Singh J.B. Singh V. Sirotenko E. Smith R.P. Smith R. Snihur G.R. Snow J. Snow S. Snyder J. Solomon M. Sosebee N. Sotnikova M. Souza N.R. Stanton G. Steinbruck R.W. Stephens M.L. Stevenson F. Stichelbaut D. Stoker V. Stolin D.A. Stoyanova M. Strauss K. Streets M. Strovink A. Sznajder P. Tamburello J. Tarazi M. Tartaglia T.L.T. Thomas J. Thompson D. Toback T.G. Trippe P.M. Tuts V. Vaniev N. Varelas E.W. Varnes A.A. Volkov A.P. Vorobev H.D. Wahl J. Warchol G. Watts M. Wayne H. Weerts A. White J.T. White J.A. Wightman S. Willis S.J. Wimpenny J.V.D. Wirjawan J. Womersley D.R. Wood R. Yamada P. Yamin T. Yasuda P. Yepes K. Yip C. Yoshikawa S. Youssef J. Yu Y. Yu Z. Zhou Z.H. Zhu M. Zielinski D. Zieminska A. Zieminski V. Zutshi E.G. Zverev A. Zylberstejn
Abstract : We report on a search for R-parity violating supersymmetry in p-pbar collisions at sqrt(s) = 1.8 TeV using the D0 detector at Fermilab. Events with at least two electrons and four or more jets were studied. We observe 2 events in 99 +- 4.4 pb-1 of data, consistent with the expected background of 1.8 +- 0.4 events. This result is interpreted within the framework of minimal low-energy supergravity supersymmetry models. Squarks with mass below 243 GeV/c^2 and gluinos with mass below 227 GeV/c^2 are excluded at the 95% confidence level (C. L.) for A_0=0, mu < 0$, tan beta=2 and a finite value for R-parity violating Yukawa coupling lambda'_1jk (j=1, 2 and k=1, 2, 3). For equal squark and gluino masses, the corresponding mass limit is 277 GeV/c^2.
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B. Abbott, M. Abolins, V. Abramov, B.S. Acharya, I. Adam, et al.. Search for R-parity violating supersymmetry in the dielectron channel. Physical Review Letters, American Physical Society, 1999, 83, pp.4476-4481. ⟨in2p3-00003217⟩

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