Searches for spontaneous R-parity-violating signals at roots = 183 GeV and roots = 189 GeV have been performed using the 1997 and 1998 DELPHI data, under the assumption of R-parity breaking in the third lepton family. The expected topology for the decay of a pair of charginos into two acoplanar taus plus missing energy was investigated and no evidence for a signal was found. The results were used to derive a limit on the chargino mass and to constrain the allowed domains of the MSSM parameter space. (C) 2001 Elsevier Science B.V. All rights reserved.

Search for spontaneous R-parity violation at root s=183 GeV and 189 GeV

AMAPANE, Nicola Carlo;MIGLIORE, Ernesto;ROMERO, Alessandra;
2001-01-01

Abstract

Searches for spontaneous R-parity-violating signals at roots = 183 GeV and roots = 189 GeV have been performed using the 1997 and 1998 DELPHI data, under the assumption of R-parity breaking in the third lepton family. The expected topology for the decay of a pair of charginos into two acoplanar taus plus missing energy was investigated and no evidence for a signal was found. The results were used to derive a limit on the chargino mass and to constrain the allowed domains of the MSSM parameter space. (C) 2001 Elsevier Science B.V. All rights reserved.
2001
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P. Abreu;W. Adam;T. Adye;P. Adzic;Z. Albrecht;T. Alderweireld;G. D. Alekseev;R. Alemany;T. Allmendinger;P. P. Allport;S. Almehed;U. Amaldi;N. Amapane;S. Amato;E. Anashkin;E. G. Anassontzis;P. Andersson;A. Andreazza;S. Andringa;N. Anjos;P. Antilogus;W. D. Apel;Y. Arnoud;B. Asman;J. E. Augustin;A. Augustinus;P. Baillon;A. Ballestrero;P. Bambade;F. Barao;G. Barbiellini;R. Barbier;D. Y. Bardin;G. Barker;A. Baroncelli;M. Battaglia;M. Baubillier;K. H. Becks;M. Begalli;A. Behrmann;Y. Belokopytov;K. Belous;N. C. Benekos;A. C. Benvenuti;C. Berat;M. Berggren;L. Berntzon;D. Bertrand;M. Besancon;N. Besson;M. S. Bilenky;D. Bloch;H. M. Blom;L. Bol;M. Bonesini;M. Boonekamp;P. S. L.;G. Borisov;C. Bosio;O. Botner;E. Boudinov;B. Bouquet;T. J. V.;I. Boyko;I. Bozovic;M. Bozzo;M. Bracko;P. Branchini;R. A. Brenner;E. Brodet;P. Bruckman;J. M. Brunet;L. Bugge;P. Buschmann;M. Caccia;M. Calvi;T. Camporesi;V. Canale;F. Carena;L. Carroll;C. Caso;M. V. C.;A. Cattai;F. R. Cavallo;M. Chapkin;P. Charpentier;P. Checchia;G. A. Chelkov;R. Chierici;P. Chliapnikov;P. Chochula;V. Chorowicz;J. Chudoba;K. Cieslik;P. Collins;R. Contri;E. Cortina;G. Cosme;F. Cossutti;M. Costa;H. B. Crawley;D. Crennell;J. Croix;J. C. Maestro;S. Czellar;J. D'Hondt;J. Dalmau;M. Davenport;W. D. Silva;G. D. Ricca;P. Delpierre;N. Demaria;A. D. Angelis;W. D. Boer;C. D. Clercq;B. D. Lotto;A. D. Min;L. D. Paula;H. Dijkstra;L. D. Ciaccio;K. Doroba;M. Dracos;J. Drees;M. Dris;G. Eigen;T. Ekelof;M. Ellert;M. Elsing;J. P. Engel;M. E. Santo;G. Fanourakis;D. Fassouliotis;M. Feindt;J. Fernandez;A. Ferrer;E. Ferrer-Ribas;F. Ferro;A. Firestone;U. Flagmeyer;H. Foeth;E. Fokitis;F. Fontanelli;B. Franek;A. G. Frodesen;R. Fruhwirth;F. Fulda-Quenzer;J. Fuster;D. Gamba;S. Gamblin;M. Gandelman;C. Garcia;C. Gaspar;M. Gaspar;U. Gasparini;P. Gavillet;E. N. Gazis;D. Gele;T. Geralis;N. Ghodbane;I. Gil;F. Glege;R. Gokieli;B. Golob;G. Gomez-Ceballos;P. Goncalves;I. G. Caballero;G. Gopal;L. Gorn;Y. Gouz;V. Gracco;J. Grahl;E. Graziani;G. Grosdidier;K. 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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2318/103381
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