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Search for pair-produced heavy scalars in Z$^0$ decays

Authors
Keywords
  • [Phys:Hexp] Physics/High Energy Physics - Experiment
  • [Phys:Hexp] Physique/Physique Des Hautes Energies - ExpéRience

Abstract

EUROPEAN ORGANIZATION FOR NUCLEAR RESEARCH CERN{PPE/94{83 6 June 1994 Search for pair-produced heavy scalars in Z 0 decays DELPHI Collaboration Abstract A search for charged Higgs bosons decaying into quarks is described, based on statistics of around 1.7 million hadronic Z 0 decays detected in DELPHI. Despite the very high background from standard hadronic decays of the Z 0 , masses in the range up to 43.5 GeV/c 2 are excluded at the 95% con�dence level. After combination with a search for leptonic decays, this mass limit is extended to cover all branching ratios. A similar analysis sets new limits on the possible production of any pair-produced heavy scalar decaying into a pair of jets, such as neutral Higgs bosons in a two doublet scheme and diquarks. (Submitted to Zeit. f ur Phys. C) ii P.Abreu 20 , W.Adam 7 , T.Adye 37 , E.Agasi 30 , I.Ajinenko 42 , R.Aleksan 39 , G.D.Alekseev 14 , P.P.Allport 21 , S.Almehed 23 , F.M.L.Almeida 47 , S.J.Alvsvaag 4 , U.Amaldi 7 , A.Andreazza 27 , P.Antilogus 24 , W-D.Apel 15 , R.J.Apsimon 37 , Y.Arnoud 39 , B. � Asman 44 , J-E.Augustin 18 , A.Augustinus 30 , P.Baillon 7 , P.Bambade 18 , F.Barao 20 , R.Barate 12 , D.Y.Bardin 14 , G.J.Barker 34 , A.Baroncelli 40 , O.Barring 7 , J.A.Barrio 25 , W.Bartl 50 , M.J.Bates 37 , M.Battaglia 13 , M.Baubillier 22 , K-H.Becks 52 , M.Begalli 36 , P.Beilliere 6 , P.Beltran 9 , A.C.Benvenuti 5 , M.Berggren 41 , D.Bertrand 2 , F.Bianchi 45 , M.Bigi 45 , M.S.Bilenky 14 , P.Billoir 22 , J.Bjarne 23 , D.Bloch 8 , J.Blocki 51 , S.Blyth 34 , V.Bocci 38 , P.N.Bogolubov 14 , T.Bolognese 39 , M.Bonesini 27 , W.Bonivento 27 , P.S.L.Booth 21 , G.Borisov 42 , C.Bosio 40 , B.Bostjancic 43 , S.Bosworth 34 , O.Botner 48 , B.Bouquet 18

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