Search for R-parity violation with a Ū D̄ D̄ coupling at √s = 189 GeV

Επιστημονική δημοσίευση - Άρθρο Περιοδικού uoadl:3075064 56 Αναγνώσεις

Μονάδα:
Ερευνητικό υλικό ΕΚΠΑ
Τίτλος:
Search for R-parity violation with a Ū D̄ D̄ coupling at √s = 189 GeV
Γλώσσες Τεκμηρίου:
Αγγλικά
Περίληψη:
Searches for pair production of gauginos and squarks in e+e- collisions at a centre-of-mass energy of 189 GeV have been performed on data corresponding to an integrated luminosity of 158 pb-1 collected by the DELPHI detector at LEP. The data were analyzed under the assumption of non-conservation of R-parity through a single dominant Ū D̄ D̄ coupling between squarks and quarks. Typical final states contain between 4 and 10 jets with or without additional leptons. No excess of data above Standard Model expectations was observed. The results were used to constrain domains of the MSSM parameter space and derive limits on the masses of supersymmetric particles. The following mass limits at 95% CL were obtained from these searches: neutralino mass: mx̃1/0 ≥ 32 GeV; chargino mass: mx̃1/+ ≥ 94 GeV; stop and sbottom mass (indirect decay) with δAM > 5 GeV: mt̃1 ≥ 74 GeV for φmix = 0 rad, mt̃1 ≥ 59 GeV for φmix = 0.98 rad, mb̃1 ≥ 72 GeV for φmix = 0 rad. The angle φmix is the mixing angle between left and right handed quarks. © 2001 Elsevier Science B.V.
Έτος δημοσίευσης:
2001
Συγγραφείς:
Abreu, P.
Adam, W.
Adye, T.
Adzic, P.
Ajinenko, I.
Albrecht, Z.
Alderweireld, T.
Alekseev, G.D.
Alemany, R.
Allmendinger, T.
Allport, P.P.
Almehed, S.
Amaldi, U.
Amapane, N.
Amato, S.
Anassontzis, E.G.
Andersson, P.
Andreazza, A.
Andringa, S.
Antilogus, P.
Apel, W.-D.
Arnoud, Y.
Åsman, B.
Augustin, J.-E.
Augustinus, A.
Baillon, P.
Ballestrero, A.
Bambade, P.
Barao, F.
Barbiellini, G.
Barbier, R.
Bardin, D.Y.
Barker, G.
Baroncelli, A.
Battaglia, M.
Baubillier, M.
Becks, K.-H.
Begalli, M.
Behrmann, A.
Beilliere, P.
Belokopytov, Y.
Benekos, N.C.
Benvenuti, A.C.
Berat, C.
Berggren, M.
Berntzon, L.
Bertrand, D.
Besancon, M.
Bilenky, M.S.
Bizouard, M.-A.
Bloch, D.
Blom, H.M.
Bonesini, M.
Boonekamp, M.
Booth, P.S.L.
Borisov, G.
Bosio, C.
Botner, O.
Boudinov, E.
Bouquet, B.
Bourdarios, C.
Bowcock, T.J.V.
Boyko, I.
Bozovic, I.
Bozzo, M.
Bracko, M.
Branchini, P.
Brenner, R.A.
Bruckman, P.
Brunet, J.-M.
Bugge, L.
Buran, T.
Buschbeck, B.
Buschmann, P.
Cabrera, S.
Caccia, M.
Calvi, M.
Camporesi, T.
Canale, V.
Carena, F.
Carroll, L.
Caso, C.
Castillo Gimenez, M.V.
Cattai, A.
Cavallo, F.R.
Charpentier, Ph.
Checchia, P.
Chelkov, G.A.
Chierici, R.
Chliapnikov, P.
Chochula, P.
Chorowicz, V.
Chudoba, J.
Cieslik, K.
Collins, P.
Contri, R.
Cortina, E.
Cosme, G.
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Crennell, D.
Crosetti, G.
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Czellar, S.
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Davenport, M.
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Navarria, F.L.
Nawrocki, K.
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Nicolaidou, R.
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Niezurawski, P.
Nikolenko, M.
Nomokonov, V.
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Obraztsov, V.
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Turluer, M.-L.
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Tyapkin, P.
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Uvarov, V.
Valenti, G.
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van den Boeck, W.
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VanVulpen, I.
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Venus, W.
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Vertogradov, L.S.
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Washbrook, A.J.
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Wickens, J.H.
Wilkinson, G.R.
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Wolf, G.
Yi, J.
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Zalewska, A.
Zalewski, P.
Zavrtanik, D.
Zevgolatakos, E.
Zimin, N.I.
Zintchenko, A.
Zoller, Ph.
Zucchelli, G.C.
Zumerle, G.
Περιοδικό:
Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Εκδότης:
Elsevier B.V.
Τόμος:
500
Αριθμός / τεύχος:
1-2
Σελίδες:
22-36
Λέξεις-κλειδιά:
analysis; article; electron; energy; luminance; mathematical analysis; mathematical model; standard
Επίσημο URL (Εκδότης):
DOI:
10.1016/S0370-2693(01)00017-X
Το ψηφιακό υλικό του τεκμηρίου δεν είναι διαθέσιμο.