Search for 3- and 4-body decays of the scalar top quark in $p\bar{p}$ collisions at $\sqrt{s} = 1.8$ TeV
- Abazov, V.M.
- Abbott, B.
- Abdesselam, Abdelmalek
- Abolins, M.
- Abramov, V.
- Acharya, B.S.
- Adams, D.L.
- Adams, M.
- Ahmed, S.N.
- Alexeev, G.D.
- Alton, A.
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- Anderson, E.W.
- Arnoud, Y.
- Avila, C.
- Babintsev, V.V.
- Babukhadia, L.
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- Baden, A.
- Baffioni, S.
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- Balm, P.W.
- Banerjee, S.
- Barberis, E.
- Baringer, P.
- Barreto, J.
- Bartlett, J.F.
- Bassler, U.
- Bauer, D.
- Bean, A.
- Beaudette, F.
- Begel, M.
- Belyaev, A.
- Beri, S.B.
- Bernardi, G.
- Bertram, I.
- Besson, A.
- Beuselinck, R.
- Bezzubov, V.A.
- Bhat, P.C.
- Bhatnagar, V.
- Bhattacharjee, M.
- Blazey, G.
- Blekman, F.
- Blessing, S.
- Boehnlein, A.
- Bojko, N.I.
- Bolton, T.A.
- Borcherding, F.
- Bos, K.
- Bose, T.
- Brandt, A.
- Breedon, R.
- Briskin, G.
- Brock, R.
- Brooijmans, G.
- Bross, A.
- Buchholz, D.
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- Buescher, V.
- Burtovoi, V.S.
- Butler, J.M.
- Canelli, F.
- Carvalho, W.
- Casey, D.
- Castilla-Valdez, H.
- Chakraborty, D.
- Chan, K.M.
- Chekulaev, S.V.
- Cho, D.K.
- Choi, S.,
- Chopra, S.
- Claes, D.
- Clark, A.R.
- Coney, L.
- Connolly, B.
- Cooper, W.E.
- Coppage, D.
- Crepe-Renaudin, S.
- Cummings, M.A.C.
- Cutts, D.
- Da Motta, H.
- Davis, G.A.
- De, K.
- De Jong, S.J.
- Demarteau, M.
- Demina, R.
- Demine, P.
- Denisov, D.
- Denisov, S.P.
- Desai, S.
- Diehl, H.T.
- Diesburg, M.
- Doulas, S.
- Dudko, L.V.
- Duensing, S.
- Duflot, L.
- Dugad, S.R.
- Duperrin, A.
- Dyshkant, A.
- Edmunds, D.
- Ellison, J.
- Eltzroth, J.T.
- Elvira, V.D.
- Engelmann, R.
- Eno, S.
- Eppley, G.
- Ermolov, P.
- Eroshin, O.V.
- Estrada, J.
- Evans, H.
- Evdokimov, V.N.
- Fein, D.
- Ferbel, T.
- Filthaut, F.
- Fisk, H.E.
- Fleuret, F.
- Fortner, M.
- Fox, H.
- Fu, S.
- Fuess, S.
- Gallas, E.
- Galyaev, A.N.
- Gao, M.
- Gavrilov, V.
- Genik II, R.J.
- Genser, K.
- Gerber, C.E.
- Gershtein, Y.
- Ginther, G.
- Gomez, B.
- Goncharov, P.I.
- Gordon, H.
- Gounder, K.
- Goussiou, A.
- Graf, N.
- Grannis, P.D.
- Green, J.A.
- Greenlee, H.
- Greenwood, Z.D.
- Grinstein, S.
- Groer, L.
- Grunendahl, S.
- Gurzhev, S.N.
- Gutierrez, G.
- Gutierrez, P.
- Hadley, N.J.
- Haggerty, H.
- Hagopian, S.
- Hagopian, V.
- Hall, R.E.
- Han, C.
- Hansen, Scott
- Hauptman, J.M.
- Hebert, Christian
- Hedin, D.
- Heinmiller, J.M.
- Heinson, A.P.
- Heintz, U.
- Hildreth, M.D.
- Hirosky, R.
- Hobbs, J.D.
- Hoeneisen, B.
- Huang, J.
- Huang, Yue
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- Illingworth, R.
- Ito, A.S.
- Jaffre, M.
- Jain, S.
- Jesik, R.
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- Johnson, M.
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- Jostlein, H.
- Juste, A.
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- Kahn, S.
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- Kharchilava, A.
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- Kotcher, J.
- Kothari, B.
- Kozelov, A.V.
- Kozlovsky, E.A.
- Krane, J.
- Krishnaswamy, M.R.
- Krivkova, P.
- Krzywdzinski, S.
- Kubantsev, M.
- Kuleshov, S.
- Kulik, Y.
- Kunori, S.
- Kupco, A.
- Kuznetsov, V.E.
- Landsberg, G.
- Lee, W.M.
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- Lehner, F.
- Leonidopoulos, C.
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- Linnemann, J.
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- Lundstedt, C.
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- Madaras, R.J.
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- Schamberger, R.D.
- Schellman, H.
- Schwartzman, A.
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- Shivpuri, R.K.
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- Snow, G.R.
- Snow, J.
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- Solomon, J.
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- Soustruznik, K.
- Souza, M.
- Stanton, N.R.
- Steinbruck, G.
- Stoker, D.
- Stolin, V.
- Stone, A.
- Stoyanova, D.A.
- Strang, M.A.
- Strauss, M.
- Strovink, M.
- Stutte, L.
- Sznajder, A.
- Talby, M.
- Taylor, W.
- Tentindo-Repond, S.
- Tripathi, S.M.
- Trippe, T.G.
- Turcot, A.S.
- Tuts, P.M.
- Van Kooten, R.
- Vanev, V.
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- Villeneuve-Seguier, F.
- Volkov, A.A.
- Vorobev, A.P.
- Wahl, H.D.
- Wang, Z.-M.
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- Willis, S.
- Wimpenny, S.J.
- Womersley, J.
- Wood, D.R.
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- Yatsunenko, Y.A.
- Yip, K.
- Youssef, S.
- Yu, J.
- Zanabria, M.
- Zhang, X.
- Zheng, H.
- Zhou, B.
- Zhou, Z.
- Zielinski, M.
- Zieminska, D.
- Zieminski, A.
- Zutshi, V.
- Zverev, E.G.
- Zylberstejn, A.
DOIAbstract
We have searched for the signature of 3- and 4-body decays of pair-produced scalar top quarks (stop) in the inclusive final state containing an electron, a muon, and significant missing transverse energy using a sample of p p ̄ events corresponding to 108.3 pb −1 of data collected with the DØ detector at Fermilab. The search is done in the framework of the minimal supersymmetric standard model assuming that the neutralino ( χ ̃ 0 1 ) is the lightest supersymmetric particle and is stable. No evidence for a signal is found and we derive cross-section upper limits as a function of stop ( t̃ ) and neutralino masses in different decay scenarios leading to the bℓν χ ̃ 0 1 final state. (Elsevier
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