Spin correlation in $t\overline{t}$ production from $p\overline{p}$ collisions at $\sqrt{s} = 1.8 TeV$

B. Abbott; M. Abolins; V. Abramov; B.S. Acharya; D.L. Adams; M. Adams; 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; U. Bassler; A. Bean; A. Belyaev; S.B. Beri; G. Bernardi; I. Bertram; V.A. Bezzubov; P.C. Bhat; V. Bhatnagar; M. Bhattacharjee; G. Blazey; S. Blessing; A. Boehnlein; N.I. Bojko; F. Borcherding; A. Brandt; R. Breedon; G. Briskin; R. Brock; G. Brooijmans; A. Bross; D. Buchholz; V. Buescher; V.S. Burtovoi; J.M. Butler; W. Carvalho; D. Casey; Z. Casilum; H. Castilla-Valdez; D. Chakraborty; K.M. Chan; S.V. Chekulaev; W. Chen; D.K. Cho; S. Choi; S. Chopra; B.C. Choudhary; J.H. Christenson; M. Chung; D. Claes; A.R. Clark; W.G. Cobau; J. Cochran; L. Coney; B. Connolly; W.E. Cooper; D. Coppage; 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.Di. Loreto; 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; J. Estrada; H. Evans; V.N. Evdokimov; T. Fahland; S. Feher; D. Fein; T. Ferbel; H.E. Fisk; Y. Fisyak; E. Flattum; F. Fleuret; M. Fortner; K.C. Frame; S. Fuess; E. Gallas; A.N. Galyaev; P. Gartung; V. Gavrilov; R.J. Genik; K. Genser; C.E. Gerber; Y. Gershtein; B. Gibbard; R. Gilmartin; G. Ginther; 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; J.A. Green; H. Greenlee; S. Grinstein; P. Grudberg; S. Grunendahl; G. Guglielmo; 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; T. Heuring; R. Hirosky; J.D. Hobbs; B. Hoeneisen; J.S. Hoftun; A.S. Ito; S.A. Jerger; R. Jesik; T. Joffe-Minor; K. Johns; M. Johnson; A. Jonckheere; M. Jones; H. Jostlein; S.Y. Jun; A. Juste; S. Kahn; E. Kajfasz; D. Karmanov; D. Karmgard; R. Kehoe; S.K. Kim; B. Klima; C. Klopfenstein; B. Knuteson; W. Ko; J.M. Kohli; A.V. Kostritsky; J. Kotcher; A.V. Kotwal; A.V. Kozelov; E.A. Kozlovsky; J. Krane; M.R. Krishnaswamy; S. Krzywdzinski; M. Kubantsev; S. Kuleshov; Y. Kulik; S. Kunori; G. Landsberg; A. Leflat; F. Lehner; J. Li; Q.Z. Li; J.G.R. Lima; D. Lincoln; S.L. Linn; J. Linnemann; R. Lipton; J.G. Lu; A. Lucotte; L. Lueking; C. Lundstedt; A.K.A. Maciel; R.J. Madaras; 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; T. Mcmahon; H.L. Melanson; M. Merkin; K.W. Merritt; C. Miao; H. Miettinen; D. Mihalcea; A. Mincer; C.S. Mishra; N. Mokhov; N.K. Mondal; H.E. Montgomery; M. Mostafa; H.Da. Motta; E. Nagy; F. Nang; M. Narain; V.S. Narasimham; H.A. Neal; J.P. Negret; S. Negroni; D. Norman; L. Oesch; V. Oguri; B. Olivier; N. Oshima; P. Padley; L.J. Pan; A. Para; N. Parashar; R. Partridge; N. Parua; M. Paterno; A. Patwa; B. Pawlik; J. Perkins; M. Peters; R. Piegaia; H. Piekarz; B.G. Pope; E. Popkov; H.B. Prosper; S. Protopopescu; J. Qian; P.Z. Quintas; R. Raja; S. Rajagopalan; N.W. Reay; S. Reucroft; M. Rijssenbeek; T. Rockwell; M. Roco; P. Rubinov; R. Ruchti; J. Rutherfoord; A. Santoro; L. Sawyer; R.D. Schamberger; H. Schellman; A. Schwartzman; J. Sculli; N. Sen; E. Shabalina; H.C. Shankar; R.K. Shivpuri; D. Shpakov; M. Shupe; R.A. Sidwell; 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; X.F. Song; V. Sorin; 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; L. Stutte; A. Sznajder; J. Tarazi; W. Taylor; S. Tentindo-Repond; T.L.T. Thomas; J. Thompson; D. Toback; T.G. Trippe; A.S. Turcot; P.M. Tuts; P.Van. Gemmeren; V. Vanev; N. Varelas; A.A. Volkov; A.P. Vorobev; H.D. Wahl; H. Wang; J. Warchol; G. Watts; M. Wayne; H. Weerts; A. White; J.T. White; D. Whiteson; J.A. Wightman; S. Willis; S.J. Wimpenny; J.V.D. Wirjawan; J. Womersley; D.R. Wood; R. Yamada; P. Yamin; T. Yasuda; K. Yip; S. Youssef; J. Yu; Z. Yu; M. Zanabria; H. Zheng; Z. Zhou; Z.H. Zhu; M. Zielinski; D. Zieminska; A. Zieminski; V. Zutshi; E.G. Zverev; A. Zylberstejn

Journal articles

Spin correlation in $t\overline{t}$ production from $p\overline{p}$ collisions at $\sqrt{s} = 1.8 TeV$

B. Abbott M. Abolins V. Abramov B.S. Acharya D.L. Adams M. Adams 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 U. Bassler ¹ A. Bean A. Belyaev S.B. Beri G. Bernardi ¹ I. Bertram V.A. Bezzubov P.C. Bhat V. Bhatnagar M. Bhattacharjee G. Blazey S. Blessing A. Boehnlein N.I. Bojko F. Borcherding A. Brandt R. Breedon G. Briskin R. Brock G. Brooijmans A. Bross D. Buchholz V. Buescher V.S. Burtovoi J.M. Butler W. Carvalho D. Casey Z. Casilum H. Castilla-Valdez D. Chakraborty K.M. Chan S.V. Chekulaev W. Chen D.K. Cho S. Choi S. Chopra B.C. Choudhary J.H. Christenson M. Chung D. Claes A.R. Clark W.G. Cobau J. Cochran L. Coney B. Connolly W.E. Cooper D. Coppage 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.Di. Loreto 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 J. Estrada H. Evans V.N. Evdokimov T. Fahland S. Feher D. Fein T. Ferbel H.E. Fisk Y. Fisyak E. Flattum F. Fleuret M. Fortner K.C. Frame S. Fuess E. Gallas A.N. Galyaev P. Gartung V. Gavrilov R.J. Genik K. Genser C.E. Gerber Y. Gershtein B. Gibbard R. Gilmartin G. Ginther 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 J.A. Green H. Greenlee S. Grinstein P. Grudberg S. Grunendahl G. Guglielmo 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 T. Heuring R. Hirosky J.D. Hobbs B. Hoeneisen J.S. Hoftun A.S. Ito S.A. Jerger R. Jesik T. Joffe-Minor K. Johns M. Johnson A. Jonckheere M. Jones H. Jostlein S.Y. Jun A. Juste S. Kahn E. Kajfasz ² D. Karmanov D. Karmgard R. Kehoe S.K. Kim B. Klima C. Klopfenstein B. Knuteson W. Ko J.M. Kohli A.V. Kostritsky J. Kotcher A.V. Kotwal A.V. Kozelov E.A. Kozlovsky J. Krane M.R. Krishnaswamy S. Krzywdzinski M. Kubantsev S. Kuleshov Y. Kulik S. Kunori G. Landsberg A. Leflat F. Lehner J. Li Q.Z. Li J.G.R. Lima D. Lincoln S.L. Linn J. Linnemann R. Lipton J.G. Lu A. Lucotte L. Lueking C. Lundstedt A.K.A. Maciel R.J. Madaras 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 T. Mcmahon H.L. Melanson M. Merkin K.W. Merritt C. Miao H. Miettinen D. Mihalcea A. Mincer C.S. Mishra N. Mokhov N.K. Mondal H.E. Montgomery M. Mostafa H.Da. Motta E. Nagy ² F. Nang M. Narain V.S. Narasimham H.A. Neal J.P. Negret S. Negroni ² D. Norman L. Oesch V. Oguri B. Olivier ¹ N. Oshima P. Padley L.J. Pan A. Para N. Parashar R. Partridge N. Parua ³ M. Paterno A. Patwa B. Pawlik J. Perkins M. Peters R. Piegaia H. Piekarz B.G. Pope E. Popkov H.B. Prosper S. Protopopescu J. Qian P.Z. Quintas R. Raja S. Rajagopalan N.W. Reay S. Reucroft M. Rijssenbeek T. Rockwell M. Roco P. Rubinov R. Ruchti J. Rutherfoord A. Santoro L. Sawyer R.D. Schamberger H. Schellman A. Schwartzman J. Sculli N. Sen E. Shabalina H.C. Shankar R.K. Shivpuri D. Shpakov M. Shupe R.A. Sidwell 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 X.F. Song V. Sorin 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 L. Stutte A. Sznajder J. Tarazi W. Taylor S. Tentindo-Repond T.L.T. Thomas J. Thompson D. Toback T.G. Trippe A.S. Turcot P.M. Tuts P.Van. Gemmeren V. Vanev N. Varelas A.A. Volkov A.P. Vorobev H.D. Wahl H. Wang J. Warchol G. Watts M. Wayne H. Weerts A. White J.T. White D. Whiteson J.A. Wightman S. Willis S.J. Wimpenny J.V.D. Wirjawan J. Womersley D.R. Wood R. Yamada P. Yamin T. Yasuda K. Yip S. Youssef J. Yu Z. Yu M. Zanabria H. Zheng Z. Zhou Z.H. Zhu M. Zielinski D. Zieminska A. Zieminski V. Zutshi E.G. Zverev A. Zylberstejn

1 LPNHE - Laboratoire de Physique Nucléaire et de Hautes Énergies

2 CPPM - Centre de Physique des Particules de Marseille

3 LPSC - Laboratoire de Physique Subatomique et de Cosmologie

Abstract : he D0 collaboration has performed a study of spin correlation in tt-bar production for the process tt-bar to bb-bar W^+W^-, where the W bosons decay to e-nu or mu-nu. A sample of six events was collected during an exposure of the D0 detector to an integrated luminosity of approximately 125 pb^-1 of sqrt{s}=1.8 TeV pp-bar collisions. The standard model (SM) predicts that the short lifetime of the top quark ensures the transmission of any spin information at production to the tt-bar decay products. The degree of spin correlation is characterized by a correlation coefficient k. We find that k -0.25 at the 68% confidence level, in agreement with the SM prediction of k=0.88.

Keywords : Intelligence Local Networking Resources System Territorial

Document type :

Journal articles

Domain :

Physics [physics] / High Energy Physics - Experiment [hep-ex]

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Spin correlation in $t\overline{t}$ production from $p\overline{p}$ collisions at $\sqrt{s} = 1.8 TeV$

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Spin correlation in $t\overline{t}$ production from $p\overline{p}$ collisions at $\sqrt{s} = 1.8 TeV$

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