Author: "Blom, H.M." / Publication Year Range: Last 50 years - Searchworks@Jio Institute Digital Library Search Results

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171 results on '"Blom, H.M."'

1. Time to Functional Recovery After Laser Tonsillotomy Performed Under Local Anesthesia vs Conventional Tonsillectomy With General Anesthesia Among Adults A Randomized Clinical Trial

Author: Chung, J.E.R.E.W., Geet, R. van, Helmond, N. van, Kastoer, C., Bohringer, S., Hout, W.B. van den, Verschuur, H.P., Peek, F.A.W., Dammeijer, P.F.M., Wermeskerken, G.K.A. van, Benthem, P.P.G. van, and Blom, H.M.
Subjects: Adult, Male, Pain, Postoperative, Dissection, Palatine Tonsil, General Medicine, Recovery of Function, Anesthesia, General, Postoperative Hemorrhage, Young Adult, Return to Work, Humans, Female, Human medicine, Laser Therapy, Anesthesia, Local, Netherlands, Tonsillectomy
Abstract: IMPORTANCE Carbon dioxide laser tonsillotomy performed under local anesthesia may be an effective and less invasive alternative than dissection tonsillectomy for treatment of tonsil-related afflictions. OBJECTIVE To compare functional recovery and symptom relief among adults undergoing tonsillectomy or tonsillotomy. DESIGN, SETTING, AND PARTICIPANTS This randomized clinical trial was conducted at 5 secondary and tertiary hospitals in the Netherlands from January 2018 to December 2019. Participants were 199 adult patients with an indication for surgical tonsil removal randomly assigned to either the tonsillectomy or tonsillotomy group. INTERVENTIONS For tonsillotomy, the crypts of the palatine tonsil were evaporated using a carbon dioxide laser under local anesthesia, whereas tonsillectomy consisted of total tonsil removal performed under general anesthesia. MAIN OUTCOMES AND MEASURES The primary outcome was time to functional recovery measured within 2 weeks after surgery assessed for a modified intention-to-treat population. Secondary outcomes were time to return to work after surgery, resolution of primary symptoms, severity of remaining symptoms, surgical complications, postoperative pain and analgesics use, and overall patient satisfaction assessed for the intention-to-treat population. RESULTS Of 199 patients (139 (70%] female; mean [SD] age, 29 [9] years), 98 were randomly assigned to tonsillotomy and 101v were randomly assigned to tonsillectomy. Recovery within 2 weeks after surgery was significantly shorter after tonsillotomy than after tonsillectomy (hazard ratio for recovery after tonsillectomy vs tonsillotomy, 0.3; 95% CI, 0.2-0.5). Two weeks after surgery, 72 (77%) patients in the tonsillotomy group were fully recovered compared with 26 (57%) patients in the tonsillectomy group. Time until return to work within 2 weeks was also shorter after tonsillotomy (median [IQR], 4.5 [3.0-7.0] days vs 12.0 [9.0-14.0] days; hazard ratio for return after tonsillectomy vs tonsillotomy, 0.3; 95% CI, 0.2-0.4.). Postoperative hemorrhage occurred in 2 patients (2%) in the tonsillotomy group and 8 patients (12%) in the tonsillectomy group. At 6 months after surgery, fewer patients in the tonsillectomy group (25; 35%) than in the tonsillotomy group (54; 57%) experienced persistent symptoms (difference of 22%; 95% CI, 7%-37%). Most patients with persistent symptoms in both the tonsillotomy (32 of 54; 59%) and tonsillectomy (16 of 25; 64%) groups reported mild symptoms 6 months after surgery. CONCLUSIONS AND RELEVANCE This randomized clinical trial found that compared with tonsillectomy performed under general anesthesia, laser tonsillotomy performed under local anesthesia had a significantly shorter and less painful recovery period. A higher percentage of patients had persistent symptoms after tonsillotomy, although the intensity of these symptoms was lower than before surgery. These results suggest that laser tonsillotomy performed under local anesthesia may be a feasible alternative to conventional tonsillectomy in this population.
Published: 2022

2. State of the art imaging in Meniere's disease. Tips and tricks for protocol and interpretation

Author: Pont, L.M.H. de, Steekelenburg, J.M. van, Verbist, B.M., Buchem, M.A. van, Blom, H.M., and Hammer, S.
Subjects: Endolymphatic hydrops, Vertigo, Meniere's disease, MRI
Abstract: Purpose of ReviewMeniere's disease (MD) is a burdensome and not well understood inner ear disorder that has received increasing attention of scientists over the past decade. Until 2007, a certain diagnosis of endolymphatic hydrops (EH) required post-mortem histology. Today, dedicated high-resolution magnetic resonance imaging (MRI) protocols enable detection of disease-related changes in the membranous labyrinth in vivo. In this review, we summarize the current status of MR imaging for MD.Recent FindingsThe mainstays of hydrops imaging are inversion recovery sequences using delayed acquisition after intravenous or intratympanic contrast administration. Based on these techniques, several methods have been developed to detect and classify EH. In addition, novel imaging features of MD, such as blood-labyrinth barrier impairment, have recently been observed.SummaryDelayed contrast enhanced MRI has emerged as a reliable technique to demonstrate EH in vivo, with promising application in the diagnosis and follow-up of MD patients. Therefore, familiarity with current techniques and diagnostic imaging criteria is increasingly important.
Published: 2020

3. Value of Endolymphatic Hydrops and Perilymph Signal Intensity in Suspected Ménière Disease

Author: van Steekelenburg, J.M., primary, van Weijnen, A., additional, de Pont, L.M.H., additional, Vijlbrief, O.D., additional, Bommeljé, C.C., additional, Koopman, J.P., additional, Verbist, B.M., additional, Blom, H.M., additional, and Hammer, S., additional
Published: 2020
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4. CO2-Lasertonsillotomy Under Local Anesthesia in Adults: Video protocol

Author: Chung, J.E.R.E.W., Helmond, N. van, Geet, R. van, Benthem, P.P.G. van, and Blom, H.M.
Subjects: surgery, tonsil, ENT, Medicine, CO2, protocol, Tonsillotomy, video, local anesthesia, Issue 153, laser
Abstract: CO2-lasertonsillotomy under local anesthesia is an interesting alternative treatment method for tonsillectomy under general anesthesia for tonsil-related complaints in adults. This report presents a step-by-step protocol detailing the execution of CO2-lasertonsillotomy under local anesthesia.Tonsil-related complaints are very common among the adult population. Tonsillectomy under general anesthesia is currently the most performed surgical treatment in adults for such complaints. Unfortunately, tonsillectomy is an invasive treatment associated with a high complication rate and a long recovery time. Complications and a long recovery time are mostly related to removing the vascular and densely innervated capsule of the tonsils. Recently, CO2-lasertonsillotomy under local anesthesia has been demonstrated to be a viable alternative treatment for tonsil-related disease with a significantly shorter and less painful recovery period. The milder side-effect profile of CO2-lasertonsillotomy is likely related to leaving the tonsil capsule intact. The aim of the current report is to present a concise protocol detailing the execution of CO2-lasertonsillotomy under local anesthesia. This intervention has been performed successfully in our hospital in more than 1,000 patients and has been found to be safe and to be associated with a steep learning curve.
Published: 2019

5. Implementation of the hyaluronic acid fat graft myringoplasty technique, pitfalls and lessons learned

Author: Grotenhuis, N. (Nienke), Koopman, J.P. (J.), Kruyt, J.M., Rothuizen, L.K. (Laura Kiki), Knevel, R. (Rachel), Blom, H.M. (Henk), Grotenhuis, N. (Nienke), Koopman, J.P. (J.), Kruyt, J.M., Rothuizen, L.K. (Laura Kiki), Knevel, R. (Rachel), and Blom, H.M. (Henk)
Abstract: Background: Myringoplasty is a common procedure in otorhinolaryngology. Many techniques with different complications and outcomes have been described, one of which is hyaluronic acid fat graft myringoplasty (HAFGM). This technique, as proposed by Saliba, uses fat tissue and hyaluronic acid discs. The technique is relatively fast with a high success rate and low complications. However, what outcomes can be expected when performed by other surgeons? In this paper, we report on the technique’s success in our own hands. Materials and methods: Based on Saliba’s protocol, we performed 86 HAFGMs by a transcanal approach between 2012 and August 2014. However, our 70% success rate was significantly different from Saliba’s 92% (p value 2.8e − 05). We visited Saliba’s clinic in order to identify critical differences between our approaches. We adapted the differences we found in our protocol and analysed another 50 HAFGMs performed afterwards, between October 2014 and December 2015. Results: The success rate increased to 86–89%, this percentage is not different compared to Saliba’s results (p value .25 and .54). Conclusion: HAFGM is a reproducible technique in the hands of other surgeons, but critical following of the surgical protocol is important.
Published: 2017
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6. Consistent measurements of alpha(s) from precise oriented event shape distributions

Author: Abreu, P., Adam, W., Adye, T., Adzic, P., 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., Asman, B., Augustin, J.E., Augustinus, A., Baillon, P., Bambade, P., Barao, F., Barbiellini, G., Barbier, R., Bardin, D.Yu., Barker, G.J., Baroncelli, A., Battaglia, M., Baubillier, M., Becks, K.H., Begalli, M., Behrmann, A., Beilliere, P., Belokopytov, Yu., Benekos, N.C., Benvenuti, A.C., Berat, C., Berggren, M., Bertini, D., Bertrand, D., Besancon, M., Bigi, M., Bilenky, Mikhail S., Bizouard, M.A., Bloch, D., Blom, H.M., Bonesini, M., Bonivento, W., Boonekamp, M., Booth, P.S.L., Borgland, A.W., Borisov, G., Bosio, C., Botner, O., Boudinov, E., Bouquet, B., Bourdarios, C., Bowcock, T.J.V., Boyko, I., Bozovic, I., Bozzo, M., Branchini, P., Brenke, T., Brenner, R.A., Bruckman, P., Brunet, J.M., Bugge, L., Buran, T., Burgsmuller, 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., Chabaud, V., Charpentier, P., Chaussard, L., Checchia, P., Chelkov, G.A., Chierici, R., Chochula, P., Chorowicz, V., Chudoba, J., Cieslik, K., Collins, P., Contri, R., Cortina, E., Cosme, G., Cossutti, F., Cowell, J.H., Crawley, H.B., Crennell, D., Crepe-Renaudin, Sabine, Crosetti, G., Cuevas Maestro, J., Czellar, S., Davenport, M., Da Silva, W., Deghorain, A., Della Ricca, G., Delpierre, P., Demaria, N., De Angelis, A., De Boer, W., De Clercq, C., De Lotto, B., De Min, A., De Paula, L., Dijkstra, H., Di Ciaccio, L., Dolbeau, J., Doroba, K., Dracos, M., Drees, J., Dris, M., Duperrin, A., Durand, J.D., Eigen, G., Ekelof, T., Ekspong, G., Ellert, M., Elsing, M., Engel, J.P., Erzen, B., Espirito Santo, M.C., Fanourakis, G., Fassouliotis, D., Fayot, J., Feindt, M., Ferrari, P., Ferrer, A., Ferrer-Ribas, E., Ferro, F., Fichet, S., Firestone, A., Flagmeyer, U., Foeth, H., Fokitis, E., Fontanelli, F., Franek, B., Frodesen, A.G., Fruhwirth, R., Fulda-Quenzer, F., Fuster, J., Galloni, A., Gamba, D., Gamblin, S., Gandelman, M., Garcia, C., Gaspar, C., Gaspar, M., Gasparini, U., Gavillet, P., Gazis, Evangelos, Gele, D., Ghodbane, N., Gil Botella, Ines, Glege, F., Gokieli, R., Golob, B., Gomez-Ceballos, G., Goncalves, P., Gonzalez Caballero, I., Gopal, G., Gorn, L., Gracco, V., Grahl, J., Graziani, E., Green, C., Grimm, H.J., Gris, P., Grosdidier, G., Grzelak, K., Gunther, M., Guy, J., Hahn, F., Hahn, S., Haider, S., Hallgren, A., Hamacher, K., Hansen, J., Harris, F.J., Hedberg, V., Heising, S., Hernandez, J.J., Herquet, P., Herr, H., Hessing, T.L., Heuser, J.M., Higon, E., Holmgren, S.O., Holt, P.J., Hoorelbeke, S., Houlden, M., Hrubec, J., Huet, K., Hughes, G.J., Hultqvist, K., Jackson, John Neil, Jacobsson, R., Jalocha, P., Janik, R., Jarlskog, C., Jarlskog, G., Jarry, P., Jean-Marie, B., Johansson, Erik Karl, Jonsson, P., Joram, C., Juillot, P., Kapusta, Frederic, Karafasoulis, K., Katsanevas, S., Katsoufis, E.C., Keranen, R., Kersevan, B.P., Khomenko, B.A., Khovansky, N.N., Kiiskinen, A., King, B., Kinvig, A., Kjaer, N.J., Klapp, O., Klein, Hansjorg, Kluit, P., Kokkinias, P., Koratzinos, M., Kourkoumelis, C., Kuznetsov, O., Krammer, M., Kriznic, E., Krumshtein, Z., Kubinec, P., Kurowska, J., Kurvinen, K., Lamsa, J.W., Lane, D.W., Langefeld, P., Laugier, J.P., Lauhakangas, R., Leder, G., Ledroit, Fabienne, Lefebure, V., Leinonen, L., Leisos, A., Leitner, R., Lemonne, J., Lenzen, G., Lepeltier, V., Lesiak, T., Lethuillier, M., Libby, J., Liko, D., Lipniacka, A., Lippi, I., Lorstad, B., Loken, J.G., Lopes, J.H., Lopez, J.M., Lopez-Fernandez, R., Loukas, D., Lutz, P., Lyons, L., MacNaughton, J., Mahon, J.R., Maio, A., Malek, A., Malmgren, T.G.M., Maltezos, S., Malychev, V., Mandl, F., Marco, J., Marco, R., Marechal, B., Margoni, M., Marin, J.C., Mariotti, C., Markou, A., Martinez-Rivero, C., Martinez-Vidal, F., Marti i Garcia, S., Masik, J., Mastroyiannopoulos, N., Matorras, F., Matteuzzi, C., Matthiae, G., Mazzucato, F., Mazzucato, M., McCubbin, M., McKay, R., McNulty, R., McPherson, G., Meroni, C., Meyer, W.T., Migliore, E., Mirabito, L., Mitaroff, W.A., Mjornmark, U., Moa, T., Moch, M., Moller, Rasmus, Monig, Klaus, Monge, M.R., Moreau, X., Morettini, P., Morton, G., Muller, U., Munich, K., Mulders, M., Mulet-Marquis, C., Muresan, R., Murray, W.J., Muryn, B., Myatt, G., Myklebust, T., Naraghi, F., Nassiakou, M., Navarria, F.L., Navas, Sergio, Nawrocki, K., Negri, P., Nemecek, S., Neufeld, N., Nicolaidou, R., Nielsen, B.S., Niezurawski, P., Nikolenko, M., Nomokonov, V., Normand, A., Nygren, A., Olshevsky, A.G., Onofre, A., Orava, R., Orazi, G., Osterberg, K., Ouraou, A., Paganoni, M., Paiano, S., Pain, R., Paiva, R., Palacios, J., Palka, H., Papadopoulou, T.D., Papageorgiou, K., Pape, L., Parkes, C., Parodi, F., Parzefall, U., Passeri, A., Passon, O., Pegoraro, M., Peralta, L., Pernicka, M., Perrotta, A., Petridou, C., Petrolini, A., Phillips, H.T., Pierre, F., Pimenta, M., Piotto, E., Podobnik, T., Pol, M.E., Polok, G., Poropat, P., Pozdnyakov, V., Privitera, P., Pukhaeva, N., Pullia, A., Radojicic, D., Ragazzi, S., Rahmani, H., Ratoff, P.N., Read, Alexander L., Rebecchi, P., Redaelli, Nicola Giuseppe, Regler, M., Reid, D., Reinhardt, R., Renton, P.B., Resvanis, L.K., Richard, F., Ridky, J., Rinaudo, G., Rodrigo, German, Rohne, O., Romero, A., Ronchese, P., Rosenberg, E.I., Rosinsky, P., Roudeau, P., Rovelli, T., Royon, C., Ruhlmann-Kleider, V., Ruiz, A., Saarikko, H., Sacquin, Y., Sadovsky, A., Sajot, G., Salt, J., Sampsonidis, D., Sannino, M., Schneider, H., Schwemling, P., Schwering, B., Schwickerath, U., Schyns, M.A.E., Scuri, Fabrizio, Seager, P., Sedykh, Yu., Segar, A.M., Sekulin, R., Shellard, R.C., Sheridan, A., Siebel, M., Simard, L., Simonetto, F., Sisakian, A.N., Smadja, G., Smirnova, O., Smith, G.R., Sopczak, A., Sosnowski, R., Spassoff, T., Spiriti, E., Sponholz, P., Squarcia, S., Stanescu, C., Stanic, S., Stevenson, K., Stocchi, A., Strauss, J., Strub, R., Stugu, B., Szczekowski, M., Szeptycka, M., Tabarelli, T., Tegenfeldt, F., Terranova, F., Thomas, J., Timmermans, Jan, Tinti, N., Tkachev, L.G., Todorova, S., Tomaradze, A., Tome, B., Tonazzo, A., Tortora, L., Transtromer, G., Treille, D., Tristram, G., Trochimczuk, M., Troncon, C., Tsirou, A., Turluer, M.L., Tyapkin, I.A., Tzamarias, S., Ullaland, O., Valenti, G., Vallazza, E., Vander Velde, C., Van Apeldoorn, G.W., Van Dam, Piet, Van Doninck, Walter, Van Eldik, J., Van Lysebetten, A., Van Remortel, N., Van Vulpen, I., Vassilopoulos, N., Vegni, G., Ventura, L., Venus, W., Verbeure, F., Verlato, M., Vertogradov, L.S., Verzi, V., Vilanova, D., Vitale, L., Vodopianov, A.S., Vollmer, C., Voulgaris, G., Vrba, V., Wahlen, H., Walck, C., Weiser, C., Wicke, D., Wickens, J.H., Wilkinson, G.R., Winter, M., Witek, M., Wolf, G., Yi, J., Zalewska, A., Zalewski, P., Zavrtanik, D., Zevgolatakos, E., Zimine, N.I., Zucchelli, G.C., Zumerle, G., BARBIELLINI AMIDEI, Guido, Cossutti, F., DELLA RICCA, Giuseppe, Poropat, Paolo, Vitale, Lorenzo, Delphi (IHEF, IoP, FNWI), Institut de Physique Nucléaire de Lyon (IPNL), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de l'Accélérateur Linéaire (LAL), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), Institut de Recherches Subatomiques (IReS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Cancéropôle du Grand Est-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Physique Corpusculaire et Cosmologie - Collège de France (PCC), Collège de France (CdF)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Centre de Physique des Particules de Marseille (CPPM), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Aix Marseille Université (AMU), DELPHI, Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS), Collège de France (CdF (institution))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), UCL - SST/IRMP - Institut de recherche en mathématique et physique, Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC), and Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS)
Subjects: Quark, Particle physics, Physics and Astronomy (miscellaneous), OPTIMIZED PERTURBATION-THEORY, JET CROSS-SECTIONS, E+ E ANNIHILATION, QUANTUM CHROMODYNAMICS, E(+)E(-) ANNIHILATION, QCD CALCULATIONS, Z0 RESONANCE, MONTE-CARLO, DECAYS, ALPHA(S)(M(Z)(2)), FOS: Physical sciences, Scale (descriptive set theory), 01 natural sciences, 7. Clean energy, Partícules (Física nuclear), High Energy Physics - Experiment, Renormalization, High Energy Physics - Experiment (hep-ex), 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], Engineering (miscellaneous), 010306 general physics, DELPHI, Physics, 010308 nuclear & particles physics, High Energy Physics::Phenomenology, Order (ring theory), Observable, Function (mathematics), LARGE ELECTRON POSITRON COLLIDER, Orientation (vector space), Experimental uncertainty analysis, PARTICLE PHYSICS, Física nuclear, High Energy Physics::Experiment, Particle Physics - Experiment
Abstract: An updated analysis using about 1.5 million events recorded at $\sqrt{s} = M_Z$ with the DELPHI detector in 1994 is presented. Eighteen infrared and collinear safe event shape observables are measured as a function of the polar angle of the thrust axis. The data are compared to theoretical calculations in ${\cal O} (\alpha_s^2)$ including the event orientation. A combined fit of $\alpha_s$ and of the renormalization scale $x_{\mu}$ in $\cal O(\alpha_s^2$) yields an excellent description of the high statistics data. The weighted average from 18 observables including quark mass effects and correlations is $\alpha_s(M_Z^2) = 0.1174 \pm 0.0026$. The final result, derived from the jet cone energy fraction, the observable with the smallest theoretical and experimental uncertainty, is $\alpha_s(M_Z^2) = 0.1180 \pm 0.0006 (exp.) \pm 0.0013 (hadr.) \pm 0.0008 (scale) \pm 0.0007 (mass)$. Further studies include an $\alpha_s$ determination using theoretical predictions in the next-to-leading log approximation (NLLA), matched NLLA and $\cal O(\alpha_s^2$) predictions as well as theoretically motivated optimized scale setting methods. The influence of higher order contributions was also investigated by using the method of Pad\'{e} approximants. Average $\alpha_s$ values derived from the different approaches are in good agreement., Comment: 48 pages
Published: 2016
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7. Search for single top production via FCNC at LEP at root s=189-208 GeV

Author: Abdallah (et al.), J., Blom, H.M., Kluit, P.M., Ferreira-Montenegro, J., Mulders, M.P., Reid, D.W., Timmermans, J.J.M., van Dam, P.H.A., and Delphi (IHEF, IoP, FNWI)
Published: 2004

8. Measurement of $|$V(cb)$|$ using the semileptonic decay anti-B/d0 $\to$ D*+ l- anti-nu/l

Author: Abdallah (et al.), J., Blom, H.M., Kluit, P.M., Ferreira-Montenegro, J., Mulders, M.P., Reid, D.W., Timmermans, J.J.M., van Dam, P.H.A., and Delphi (IHEF, IoP, FNWI)
Published: 2004

9. Search for B-s(0)-(B-s(0))over-bar oscillations in DELPHI using high-p(t) leptons

Author: Abdallah (et al.), J., Blom, H.M., Kluit, P.M., Ferreira-Montenegro, J., Mulders, M.P., Reid, D.W., Timmermans, J.J.M., van Dam, P.H.A., and Delphi (IHEF, IoP, FNWI)
Published: 2004

10. Measurement of the forward-backward asymmetries of $e^ + e^- \rightarrow Z \rightarrow b \overline{b}$ and $e^ + e^- \rightarrow Z \rightarrow c \overline{c}$ using prompt leptons

Author: Abdallah (et al.), J., Blom, H.M., Kluit, P.M., Ferreira-Montenegro, J., Mulders, M.P., Reid, D.W., Timmermans, J.J.M., van Dam, P.H.A., and Delphi (IHEF, IoP, FNWI)
Subjects: Mathematics::History and Overview, High Energy Physics::Phenomenology
Published: 2004

11. Measurement of the Lambda(0)(b) decay form factor

Author: Abdallah (et al.), J., Blom, H.M., Kluit, P.M., Ferreira-Montenegro, J., Mulders, M.P., Reid, D.W., Timmermans, J.J.M., van Dam, P.H.A., and Delphi (IHEF, IoP, FNWI)
Published: 2004

12. Measurement of the W-pair production cross-section and W branching ratios in e+e- collisions at $\sqrt{s}$ = 161-209 GeV

Author: Abdallah (et al.), J., Blom, H.M., Kluit, P.M., Ferreira-Montenegro, J., Mulders, M.P., Reid, D.W., Timmermans, J.J.M., van Dam, P.H.A., and Delphi (IHEF, IoP, FNWI)
Published: 2004

13. Determination of the $e^ + e^- \to \gamma \gamma (\gamma)$ cross-section at LEP 2

Author: Abdallah (et al.), J., Blom, H.M., Kluit, P.M., Ferreira-Montenegro, J., Mulders, M.P., Reid, D.W., Timmermans, J.J.M., van Dam, P.H.A., and Delphi (IHEF, IoP, FNWI)
Published: 2004

14. Single W measurement at Delphi

Author: Blom, H.M., Engelen, Joseph, Timmermans, J.J.M., Kluit, P.M., and Delphi (IHEF, IoP, FNWI)
Published: 2003

15. Search for Charged Higgs Bosons in $e^+ e^-$ Collisions at $\sqrt{s}$=189-202 GeV

Author: Abdallah, J., Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., Alekseev, G.D., Alemany, R., Allmendinger, T., Allport, P.P., Almehed, S., Amaldi, U., Amapane, N., Amato, S., Anashkin, E., Anassontzis, E.G., Andersson, P., Andreazza, A., Andringa, S., Anjos, N., Antilogus, P., Apel, W.D., Arnoud, Y., Asman, B., Augustin, J.E., Augustinus, A., Baillon, P., Ballestrero, A., Bambade, P., Barao, F., Barbiellini, G., Barbier, R., Bardin, D.Yu., Barker, G.J., Baroncelli, A., Battaglia, M., Baubillier, M., Becks, K.H., Begalli, M., Behrmann, A., Bellunato, T., Belokopytov, Yu., Belous, K., Benekos, N.C., Benvenuti, A.C., Berat, C., Berggren, M., Berntzon, L., Bertrand, D., Besancon, M., Besson, N., Bilenky, Mikhail S., Bloch, D., Blom, H.M., Bol, L., Bonesini, M., Boonekamp, M., Booth, P.S.L., Borisov, G., Bosio, C., Botner, O., Boudinov, E., Bouquet, B., Bowcock, T.J.V., Boyko, I., Bozovic, I., Bozzo, M., Bracko, M., Branchini, P., Brenner, R.A., Brodet, E., Bruckman, P., Brunet, J.M., Bugge, L., Buschmann, P., Caccia, M., Calvi, M., Camporesi, T., Canale, V., Carena, F., Carroll, L., Caso, C., Castillo Gimenez, M.V., Cattai, A., Cavallo, F.R., Chapkin, M., Charpentier, P., Checchia, P., Chelkov, G.A., Chierici, R., Shlyapnikov, P., Chochula, P., Chorowicz, V., Chudoba, J., Cieslik, K., Collins, P., Contri, R., Cortina, E., Cosme, G., Cossutti, F., Costa, M., Crawley, H.B., Crennell, D., Croix, J., Cuevas Maestro, J., Czellar, S., D'Hondt, J., Dalmau, J., Davenport, M., Da Silva, W., Della Ricca, G., Delpierre, P., Demaria, N., De Angelis, A., De Boer, W., De Clercq, C., De Lotto, B., De Min, A., De Paula, L., Dijkstra, H., Di Ciaccio, L., Doroba, K., Dracos, M., Drees, J., Dris, M., Eigen, G., Ekelof, T., Ellert, M., Elsing, M., Engel, J.P., Espirito Santo, M.C., Fanourakis, G., Fassouliotis, D., Feindt, M., Fernandez, J., Ferrer, A., Ferrer-Ribas, E., Ferro, F., Firestone, A., Flagmeyer, U., Foeth, H., Fokitis, E., Fontanelli, F., Franek, B., Frodesen, A.G., Fruhwirth, R., Fulda-Quenzer, F., Fuster, J., Gamba, D., Gamblin, S., Gandelman, M., Garcia, C., Gaspar, C., Gaspar, M., Gasparini, U., Gavillet, P., Gazis, Evangelos, Gele, D., Geralis, T., Ghodbane, N., Gil Botella, Ines, Glege, F., Gokieli, R., Golob, B., Gomez-Ceballos, G., Goncalves, P., Gonzalez Caballero, I., Gopal, G., Gorn, L., Guz, Yu., Gracco, V., Grahl, J., Graziani, E., Grosdidier, G., Grzelak, K., Guy, J., Haag, C., Hahn, F., Hahn, S., Haider, S., Hallgren, A., Hamacher, K., Hamilton, K., Hansen, J., Harris, F.J., Haug, S., Hauler, F., Hedberg, V., Heising, S., Hernandez, J.J., Herquet, P., Herr, H., Hertz, O., Higon, E., Holmgren, S.O., Holt, P.J., Hoorelbeke, S., Houlden, M., Hrubec, J., Hughes, G.J., Hultqvist, K., Jackson, John Neil, Jacobsson, R., Jalocha, P., Jarlskog, C., Jarlskog, G., Jarry, P., Jean-Marie, B., Jeans, D., Johansson, Erik Karl, Jonsson, P., Joram, C., Juillot, P., Jungermann, L., Kapusta, Frederic, Karafasoulis, K., Katsanevas, S., Katsoufis, E.C., Keranen, R., Kernel, G., Kersevan, B.P., Khokhlov, Yu.A., Khomenko, B.A., Khovansky, N.N., Kiiskinen, A., King, B., Kinvig, A., Kjaer, N.J., Klapp, O., Kluit, P., Kokkinias, P., Kostyukhin, V., Kourkoumelis, C., Kuznetsov, O., Krammer, M., Kriznic, E., Krumshtein, Z., Kubinec, P., Kucharczyk, M., Kurowska, J., Lamsa, J.W., Laugier, J.P., Leder, G., Ledroit, Fabienne, Leinonen, L., Leisos, A., Leitner, R., Lemonne, J., Lenzen, G., Lepeltier, V., Lesiak, T., Lethuillier, M., Libby, J., Liebig, W., Liko, D., Lipniacka, A., Lippi, I., Loken, J.G., Lopes, J.H., Lopez, J.M., Lopez-Fernandez, R., Loukas, D., Lutz, P., Lyons, L., MacNaughton, J., Mahon, J.R., Maio, A., Malek, A., Maltezos, S., Malychev, V., Mandl, F., Marco, J., Marco, R., Marechal, B., Margoni, M., Marin, J.C., Mariotti, C., Markou, A., Martinez-Rivero, C., Marti i Garcia, S., Masik, J., Mastroyiannopoulos, N., Matorras, F., Matteuzzi, C., Matthiae, G., Mazzucato, F., Mazzucato, M., McCubbin, M., McKay, R., McNulty, R., Merle, E., Meroni, C., Meyer, W.T., Myagkov, A., Migliore, E., Mirabito, L., Mitaroff, W.A., Mjornmark, U., Moa, T., Moch, M., Monig, Klaus, Monge, M.R., Montenegro, J., Moraes, D., Morettini, P., Morton, G., Muller, U., Munich, K., Mulders, M., Mundim, L.M., Murray, W.J., Muryn, B., Myatt, G., Myklebust, T., Nassiakou, M., Navarria, F.L., Nawrocki, K., Negri, P., Nemecek, S., Neufeld, N., Nicolaidou, R., Niezurawski, P., Nikolenko, M., Nomokonov, V., Nygren, A., Obraztsov, V., Olshevsky, A.G., Onofre, A., Orava, R., Osterberg, K., Ouraou, A., Oyanguren, A., Paganoni, M., Paiano, S., Pain, R., Paiva, R., Palacios, J., Palka, H., Papadopoulou, T.D., Pape, L., Parkes, C., Parodi, F., Parzefall, U., Passeri, A., Passon, O., Peralta, L., Perepelitsa, V., Pernicka, M., Perrotta, A., Petridou, C., Petrolini, A., Phillips, H.T., Pierre, F., Pimenta, M., Piotto, E., Podobnik, T., Poireau, V., Pol, M.E., Polok, G., Poropat, P., Pozdnyakov, V., Privitera, P., Pukhaeva, N., Pullia, A., Radojicic, D., Ragazzi, S., Rahmani, H., Ratoff, P.N., Read, Alexander L., Rebecchi, P., Redaelli, Nicola Giuseppe, Regler, M., Rehn, J., Reid, D., Reinhardt, R., Renton, P.B., Resvanis, L.K., Richard, F., Ridky, J., Rinaudo, G., Ripp-Baudot, Isabelle, Romero, A., Ronchese, P., Rosenberg, E.I., Rosinsky, P., Rovelli, T., Ruhlmann-Kleider, V., Ruiz, A., Saarikko, H., Sacquin, Y., Sadovsky, A., Sajot, G., Salmi, L., Salt, J., Sampsonidis, D., Sannino, M., Savoy-Navarro, A., Schwanda, C., Schwemling, P., Schwering, B., Schwickerath, U., Scuri, Fabrizio, Seager, P., Sedykh, Yu., Segar, A.M., Sekulin, R., Sette, G., Shellard, R.C., Siebel, M., Simard, L., Simonetto, F., Sisakian, A.N., Smadja, G., Smirnova, O., Smith, G.R., Sokolov, A., Solovianov, O., Sopczak, A., Sosnowski, R., Spassoff, T., Spiriti, E., Squarcia, S., Stanescu, C., Stanitzki, M., Stocchi, A., Strauss, J., Strub, R., Stugu, B., Szczekowski, M., Szeptycka, M., Tabarelli, T., Taffard, A., Tegenfeldt, F., Terranova, F., Timmermans, Jan, Tinti, N., Tkachev, L.G., Tobin, M., Todorova, S., Tome, B., Tonazzo, A., Tortora, L., Tortosa, P., Treille, D., Tristram, G., Trochimczuk, M., Troncon, C., Turluer, M.L., Tyapkin, I.A., Tyapkin, P., Tzamarias, S., Ullaland, O., Uvarov, V., Valenti, G., Vallazza, E., Vander Velde, C., Van Dam, Piet, Van Den Boeck, W., Van Doninck, Walter, Van Eldik, J., Van Lysebetten, A., Van Remortel, N., Van Vulpen, I., Vegni, G., Ventura, L., Venus, W., Verbeure, F., Verdier, P., Verlato, M., Vertogradov, L.S., Verzi, V., Vilanova, D., Vitale, L., Vlasov, E., Vodopianov, A.S., Voulgaris, G., Vrba, V., Wahlen, H., Washbrook, A.J., Weiser, C., Wicke, D., Wickens, J.H., Wilkinson, G.R., Winter, M., Witek, M., Wolf, G., Yi, J., Yushchenko, O., Zalewska, A., Zalewski, P., Zavrtanik, D., Zevgolatakos, E., Zimine, N.I., Zinchenko, A., Zoller, P., Zumerle, G., Zupan, M., Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC), Laboratoire de l'Accélérateur Linéaire (LAL), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Institut de Recherches Subatomiques (IReS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Cancéropôle du Grand Est-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Physique Corpusculaire et Cosmologie - Collège de France (PCC), Collège de France (CdF (institution))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), DELPHI, Abdallah, J, Abreu, P, Adam, W, Adzic, P, Albrecht, T, Alderweireld, T, Alemany Fernandez, R, Allmendinger, T, Allport, P, Almehed, S, Amaldi, U, Amapane, N, Amato, S, Anashkin, E, Andreazza, A, Andringa, S, Anjos, N, Antilogus, P, Apel, W, Arnoud, Y, Ask, S, Asman, B, Augustin, J, Augustinus, A, Baillon, P, Ballestrero, A, Bambade, P, Barbier, R, Bardin, D, Barker, G, Baroncelli, A, Battaglia, M, Baubillier, M, Becks, K, Begalli, M, Behrmann, A, Bellunato, T, Benekos, N, Benvenuti, A, Berat, C, Berggren, M, Berntzon, L, Bertrand, D, Besancon, M, Besson, N, Bloch, D, Blom, M, Bonesini, M, Boonekamp, M, Booth, P, Borisov, G, Botner, O, Bouquet, B, Bowcock, T, Boyko, I, Bracko, M, Brenner, R, Brodet, E, Brodzicka, J, Bruckman, P, Brunet, J, Bugge, L, Buschmann, P, Calvi, M, Camporesi, T, Canale, V, Carena, F, Carimalo, C, Castro, N, Cavallo, F, Chapkin, M, Charpentier, P, Checchia, P, Chierici, R, Chliapnikov, P, Chung, S, Cieslik, K, Collins, P, Contri, R, Cosme, G, Cossutti, F, Costa, M, Crawley, B, Crennell, D, Cuevas, J, D'Hondt, J, Dalmau, J, da Silva, T, Da Silva, W, Della Ricca, G, De Angelis, A, De Boer, W, De Clercq, C, De Lotto, B, De Maria, N, De Min, A, de Paula, L, Di Ciaccio, L, Di Simone, A, Doroba, K, Drees, J, Dris, M, Eigen, G, Ekelof, T, Ellert, M, Elsing, M, Espirito Santo, M, Fanourakis, G, Fassouliotis, D, Feindt, M, Fernandez, J, Ferrer, A, Ferro, F, Flagmeyer, U, Foeth, H, Fokitis, E, Fulda Quenzer, F, Fuster, J, Gandelman, M, Garcia, C, Gavillet, P, Gazis, E, Gele, D, Geralis, T, Gokieli, R, Golob, B, Gomez Ceballos, G, Goncalves, P, Graziani, E, Grosdidier, G, Grzelak, K, Guy, J, Haag, C, Hahn, F, Hahn, S, Hallgren, A, Hamacher, K, Hamilton, K, Hansen, J, Haug, S, Hauler, F, Hedberg, V, Hennecke, M, Herr, H, Holmgren, S, Holt, P, Houlden, M, Hultqvist, K, Jackson, J, Jalocha, P, Jarlskog, C, Jarlskog, G, Jarry, P, Jeans, D, Johansson, E, Johansson, P, Jonsson, P, Joram, C, Jungermann, L, Kapusta, F, Katsanevas, S, Katsoufis, E, Keranen, R, Kernel, G, Kersevan, B, Kiiskinen, A, King, B, Kjaer, N, Kluit, P, Kokkinias, P, Kourkoumelis, C, Kouznetsov, O, Krumstein, Z, Kucharczyk, M, Kurowska, J, Laforge, B, Lamsa, J, Leder, G, Ledroit, F, Leinonen, L, Leitner, R, Lemonne, J, Lenzen, G, Lepeltier, V, Lesiak, T, Liebig, W, Liko, D, Lipniacka, A, Lopes, J, Lopez, J, Loukas, D, Lutz, P, Lyons, L, Macnaughton, J, Malek, A, Maltezos, S, Mandl, F, Marco, J, Marco, R, Marechal, B, Margoni, M, Marin, J, Mariotti, C, Markou, A, Martinez Rivero, C, Masik, J, Mastroyiannopoulos, N, Matorras, F, Matteuzzi, C, Mazzucato, F, Mazzucato, M, Mc Nulty, R, Meroni, C, Meyer, W, Migliore, E, Mitaroff, W, Mjoernmark, U, Moa, T, Moch, M, Moenig, K, Monge, R, Montenegro, J, Moraes, D, Moreno, S, Morettini, P, Mueller, U, Muenich, K, Mulders, M, Mundim, L, Murray, W, Muryn, B, Myatt, G, Myklebust, T, Nassiakou, M, Navarria, F, Nawrocki, K, Nemecek, S, Nicolaidou, R, Niezurawski, P, Nikolenko, M, Nygren, A, Oblakowska Mucha, A, Obraztsov, V, Olshevski, A, Onofre, A, Orava, R, Osterberg, K, Ouraou, A, Oyanguren, A, Paganoni, M, Paiano, S, Palacios, J, Palka, H, Papadopoulou, T, Pape, L, Parkes, C, Parodi, F, Parzefall, U, Passeri, A, Passon, O, Peralta, L, Perepelitsa, V, Perrotta, A, Petrolini, A, Piedra, J, Pieri, L, Pierre, F, Pimenta, M, Piotto, E, Podobnik, T, Poireau, V, Pol, M, Polok, G, Poropat, P, Pozdniakov, V, Privitera, P, Pukhaeva, N, Pullia, A, Rames, J, Ramler, L, Read, A, Rebecchi, P, Rehn, J, Reid, D, Reinhardt, R, Renton, P, Richard, F, Ridky, J, Ripp Baudot, I, Rodriguez, D, Romero, A, Ronchese, P, Rosenberg, E, Roudeau, P, Rovelli, T, Ruhlmann Kleider, V, Ryabtchikov, D, Sadovsky, A, Salmi, L, Salt, J, Savoy Navarro, A, Schwanda, C, Schwering, B, Schwickerath, U, Segar, A, Sekulin, R, Siebel, M, Sisakian, A, Smadja, G, Smirnova, O, Sokolov, A, Sopczak, A, Sosnowski, R, Spassov, T, Stanitzki, M, Stocchi, A, Strauss, J, Stugu, B, Szczekowski, M, Szeptycka, M, Szumlak, T, TABARELLI DE FATIS, T, Taffard, A, Tegenfeldt, F, Terranova, F, Timmermans, J, Tinti, N, Tkatchev, L, Tobin, M, Todorovova, S, Tome, B, Tonazzo, A, Tortosa, P, Travnicek, P, Treille, D, Tristram, G, Trochimczuk, M, Troncon, C, Turluer, M, Tyapkin, I, Tyapkin, P, Tzamarias, S, Ullaland, O, Uvarov, V, Valenti, G, Van Dam, P, Van Eldik, J, Van Lysebetten, A, van Remortel, N, Van Vulpen, I, Vegni, G, Veloso, F, Venus, W, Verbeure, F, Verdier, P, Verzi, V, Vilanova, D, Vitale, L, Vrba, V, Wahlen, H, Washbrook, A, Weiser, C, Wicke, D, Wickens, J, Wilkinson, G, Winter, M, Witek, M, Yushchenko, O, Zalewska, A, Zalewski, P, Zavrtanik, D, Zimin, N, Zintchenko, A, Zoller, P, Zupan, M, Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Delphi, Collaboration, Abreu, P., Adam, W., Canale, Vincenzo, Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), Collège de France (CdF)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), and Delphi (IHEF, IoP, FNWI)
Subjects: Particle physics, High energy, Nuclear and High Energy Physics, PAIR PRODUCTION, ENERGIES, Hadron, FOS: Physical sciences, Jet (particle physics), 01 natural sciences, DECAYS, High Energy Physics - Experiment, Standard Model, High Energy Physics - Experiment (hep-ex), 0103 physical sciences, MONTE-CARLO PROGRAM, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], RADIATIVE-CORRECTIONS, 010306 general physics, Boson, Physics, 010308 nuclear & particles physics, High Energy Physics::Phenomenology, Physique atomique et nucléaire, Physique des particules élémentaires, Higgs boson, High Energy Physics::Experiment, Particle Physics - Experiment, Bar (unit)
Abstract: A search for pair-produced charged Higgs bosons was performed in the high energy data collected by the DELPHI detector at LEP II at centre-of-mass energies from 189 GeV to 202 GeV. The three different final states, τvτv, cs̄c̄s and cs̄τv were considered. New methods were applied to reject wrong hadronic jet pairings and for the tau identification, where a discriminator based on tau polarisation and polar angles was used. No excess of data compared to the expected Standard Model processes was observed and the existence of a charged Higgs boson with mass lower than 71.5 GeV/c2 is excluded at the 95% confidence level. © 2002 Published by Elsevier Science B.V., SCOPUS: ar.j, info:eu-repo/semantics/published
Published: 2002
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16. Search for neutralino pair production at root s = 189 GeV

Author: Abreu, P., Adam, W., Adye, T., Adzic, P., Azhinenko, 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., Anjos, N., Antilogus, P., Apel, W.D., Arnoud, Y., Asman, B., Augustin, J.-E., Augustinus, A., Baillon, P., Ballestrero, A., Bambade, P., Barao, F., Barbiellini, Guido, Barbier, R., Bardin, D.Yu., Barker, G., Baroncelli, A., Battaglia, M., Baubillier, M., Becks, K.H., Begalli, M., Behrmann, A., Belokopytov, Yu., Benekos, N.C., Benvenuti, A.C., Berat, C., Berggren, M., Berntzon, L., Bertrand, D., Besancon, M., Besson, N., Bilenkii, M.S., Bizouard, M.A., Bloch, D., Blom, H.M., Bol, L., 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., Buschmann, P., Caccia, M., Calvi, M., Camporesi, T., Canale, V., Carena, F., Carroll, L., Caso, C., Castillo Gimenez, M.V., Cattai, A., Cavallo, F.R., Charpentier, P., Checchia, P., Chelkov, G.A., Chierici, R., Shlyapnikov, P., Chochula, P., Chorowicz, V., Chudoba, J., Cieslik, K., Collins, P., Contri, R., Cortina, E., Cosme, G., Cossutti, F., Costa, M., Crawley, H.B., Crennell, D., Croix, J., Crosetti, G., Cuevas Maestro, J., Czellar, S., d'Hondt, J., Dalmau, J., Davenport, M., da Silva, W., Della Ricca, G., Delpierre, P., Demaria, N., de Angelis, A., de Boer, W., de Clercq, C., de Lotto, B., de Min, A., de Paula, L., Dijkstra, H., Di Ciaccio, L., Doroba, K., Dracos, M., Drees, J., Dris, M., Eigen, G., Ekelof, T., Ellert, M., Elsing, M., Engel, J.P., Espirito Santo, M., Fanourakis, G., Fassouliotis, D., Feindt, M., Fernandez, J., Ferrer, A., Ferrer-Ribas, E., Ferro, F., Firestone, A., Flagmeyer, U., Foeth, H., Fokitis, E., Fontanelli, F., Franek, B., Frodesen, A.G., Fruhwirth, R., Fulda-Quenzer, F., Fuster, J., Galloni, A., Gamba, D., Gamblin, S., Gandelman, M., Garcia, C., Gaspar, C., Gaspar, M., Gasparini, U., Gavillet, P., Gazis, E.N., Gele, D., Geralis, T., Gerdyukov, L., Ghodbane, N., Gil, I., Glege, F., Gokieli, R., Golob, B., Gomez-Ceballos, G., Goncalves, P., Gonzalez Caballero, I., Gopal, G., Gorn, L., Gouz, Yu., Grahl, J., Graziani, E., Grosdidier, G., Grzelak, K., Guy, J., Haag, C., Hahn, F., Hahn, S., Haider, S., Hallgren, A., Hamacher, K., Hansen, J., Harris, F.J., Haug, S., Hauler, F., Hedberg, V., Heising, S., Hernandez, J.J., Herquet, P., Herr, H., Hertz, O., Higon, E., Holmgren, S.O., Holt, P.J., Hoorelbeke, S., Houlden, M., Hrubec, J., Hughes, G.J., Hultqvist, K., Jackson, J.N., Jacobsson, R., Jalocha, P., Jarlskog, C., Jarlskog, G., Jarry, P., Jean-Marie, B., Jeans, D., Johansson, E.K., Jonsson, P., Joram, C., Juillot, P., Jungermann, L., Kapusta, F., Karafasoulis, K., Katsanevas, S., Katsoufis, E.C., Keranen, R., Kernel, G., Kersevan, B.P., Khokhlov, Yu., Khomenko, B.A., Khovansky, N.N., Kiiskinen, A., King, B., Kinvig, A., Kjaer, N.J., Klapp, O., Kluit, P., Kokkinias, P., Kostyukhin, V., Kourkoumelis, C., Kuznetsov, O., Krammer, M., Kriznic, E., Krumshtein, Z., Kubinec, P., Kucharczyk, M., Kurowska, J., Lamsa, J.W., Laugier, J.P., Leder, G., Ledroit, F., Leinonen, L., Leisos, A., Leitner, R., Lenzen, G., Lepeltier, V., Lesiak, T., Lethuillier, M., Libby, J., Liebig, W., Liko, D., Lipniacka, A., Lippi, I., Loken, J.G., Lopes, J.H., Lopez, J.M., Lopez-Fernandez, R., Loukas, D., Lutz, P., Lyons, L., Macnaughton, J., Mahon, J.R., Maio, A., Malek, A., Maltezos, S., Malychev, V., Mandl, F., Marco, J., Marco, R., Marechal, B., Margoni, M., Marin, J.C., Mariotti, C., Markou, A., Martinez-Rivero, C., Marti, I Garcia S., Masik, J., Mastroyiannopoulos, N., Matorras, F., Matteuzzi, C., Matthiae, G., Mazzucato, F., Mazzucato, M., Mccubbin, M., Mckay, R., Mcnulty, R., Mcpherson, G., Merle, E., Meroni, C., Meyer, W.T., Migliore, E., Mirabito, L., Mitaroff, W.A., Mjornmark, U., Moa, T., Moch, M., Monig, K., Monge, M.R., Montenegro, J., Moraes, D., Morettini, P., Morton, G., Muller, U., Munich, K., Mulders, M., Mundim, L.M., Murray, W.J., Muryn, B., Myatt, G., Myklebust, T., Nassiakou, M., Navarria, F.L., Nawrocki, K., Negri, P., Nemecek, S., Neufeld, N., Nicolaidou, R., Niezurawski, P., Nikolenko, M., Nomokonov, V., Nygren, A., Obraztsov, V., Olshevsky, A.G., Onofre, A., Orava, R., Osterberg, K., Ouraou, A., Oyanguren, A., Paganoni, M., Paiano, S., Pain, R., Paiva, R., Palacios, J., Palka, H., Papadopoulou, T.D., Pape, L., Parkes, C., Parodi, F., Parzefall, U., Passeri, A., Passon, O., Pavel, T., Pegoraro, M., Peralta, L., Perepelitsa, V., Pernicka, M., Perrotta, A., Petridou, C., Petrolini, A., Phillips, H.T., Pierre, F., Pimenta, M., Piotto, E., Podobnik, T., Poireau, V., Pol, M.E., Polok, G., Poropat, P., Pozdnyakov, V., Privitera, P., Pukhaeva, N., Pullia, A., Radojicic, D., Ragazzi, S., Rahmani, H., Ratoff, P.N., Read, A.L., Rebecchi, P., Redaelli, N.G., Regler, M., Rehn, J., Reid, D., Reinhardt, R., Renton, P.B., Resvanis, L.K., Richard, F., Ridky, J., Rinaudo, G., Ripp-Baudot, I., Romero, A., Ronchese, P., Rosenberg, E.I., Rosinsky, P., Roudeau, P., Rovelli, T., Ruhlmann-Kleider, V., Ruiz, A., Saarikko, H., Sacquin, Y., Sadovsky, A., Sajot, G., Salmi, L., Salt, J., Sampsonidis, D., Sannino, M., Savoy-Navarro, A., Schwanda, C., Schwemling, P., Schwering, B., Schwickerath, U., Scuri, F., Seager, P., Sedykh, Yu., Segar, A.M., Sekulin, R., Sette, G., Shellard, R.C., Siebel, M., Simard, L., Simonetto, F., Sisakian, A.N., Smadja, G., Smirnov, N., Smirnova, O., Smith, G.R., Sokolov, A., Sopczak, A., Sosnowski, R., Spassoff, T., Spiriti, E., Squarcia, S., Stanescu, C., Stanitzki, M., Stevenson, K., Stocchi, A., Strandberg, J., Strauss, J., Strub, R., Stugu, B., Szczekowski, M., Szeptycka, M., Tabarelli, T., Taffard, A., Chikilev, O., Tegenfeldt, F., Terranova, F., Timmermans, J., Tinti, N., Tkachev, L.G., Tobin, M., Todorova, S., Tome, B., Tonazzo, A., Tortora, L., Tortosa, Pablo, Treille, D., Tristram, G., Trochimczuk, M., Troncon, C., Turluer, M.L., Tyapkin, I.A., Tyapkin, P., Tzamarias, S., Ullaland, O., Uvarov, V., Valenti, G., Vallazza, E., Vander Velde, C., van Dam, P., van den Boeck, W., van Eldik, J., van Lysebetten, A., van Remortel, N., van Vulpen, I., Vegni, G., Ventura, Laurent, Venus, W., Verbeure, F., Verdier, P., Verlato, M., Vertogradov, L.S., Verzi, V., Vilanova, D., Vitale, L., Vlasov, E., Vodopyanov, A.S., Voulgaris, G., Vrba, V., Wahlen, H., Washbrook, A.J., Weiser, C., Wicke, D., Wickens, J.H., Wilkinson, G.R., Winter, M., Witek, M., Wolf, G., Yi, J., Yushchenko, O., Zalewska, A., Zalewski, P., Zavrtanik, D., Zevgolatakos, E., Zimin, N.I., Zinchenko, A., Zoller, P., Zumerle, G., Zupan, M., UCL - SST/IRMP - Institut de recherche en mathématique et physique, Institut de Physique Nucléaire de Lyon (IPNL), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de l'Accélérateur Linéaire (LAL), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut de Recherches Subatomiques (IReS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Cancéropôle du Grand Est-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Physique Corpusculaire et Cosmologie - Collège de France (PCC), Collège de France (CdF)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Centre de Physique des Particules de Marseille (CPPM), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Aix Marseille Université (AMU), DELPHI, Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS), Collège de France (CdF (institution))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), DELPHI Collaboration, BARBIELLINI AMIDEI, Guido, Cossutti, F., DELLA RICCA, Giuseppe, Poropat, Paolo, and Vitale, Lorenzo
Subjects: GRAVITINOS, Particle physics, COLLISIONS, Physics and Astronomy (miscellaneous), LOWEST ORDER CALCULATIONS, MONTE-CARLO SIMULATION, FOS: Physical sciences, 2-PHOTON PROCESSES, Parameter space, 01 natural sciences, Signal, Partícules (Física nuclear), High Energy Physics - Experiment, PHYSICS, High Energy Physics - Experiment (hep-ex), 0103 physical sciences, EVENT GENERATOR, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], RADIATIVE-CORRECTIONS, 010306 general physics, Engineering (miscellaneous), SUPERSYMMETRY, DELPHI, HIGH-ENERGIES, Physics, 010308 nuclear & particles physics, High Energy Physics::Phenomenology, LARGE ELECTRON POSITRON COLLIDER, Pair production, PARTICLE PHYSICS, Neutralino, Física nuclear, High Energy Physics::Experiment, Energy (signal processing), Particle Physics - Experiment, Minimal Supersymmetric Standard Model
Abstract: A search for pair-production of neutralinos at a LEP centre-of-mass energy of 189 GeV gave no evidence for a signal. This limits the neutralino production cross-section and excludes regions in the parameter space of the Minimal Supersymmetric Standard Model (MSSM)., Comment: 24 pages, 10 figures, Accepted by Eur. Phys. J. C
Published: 2001
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17. Measurement of Trilinear Gauge Boson Couplings $WWV, (V \equiv Z, \gamma)$ in $e^+ e^-$ Collisions at 189 GeV

Author: Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., Alekseev, G.D., Alemany, R., Allmendinger, T., Allport, P.P., Almehed, S., Amaldi, U., Amapane, N., Amato, S., Anashkin, E., Anassontzis, E.G., Andersson, P., Andreazza, A., Andringa, S., Anjos, N., Antilogus, P., Apel, W.D., Arnoud, Y., Asman, B., Augustin, J.E., Augustinus, A., Baillon, P., Ballestrero, A., Bambade, P., Barao, F., Barbiellini, G., Barbier, R., Bardin, Dmitri Yu., Barker, G.J., Baroncelli, A., Battaglia, M., Baubillier, M., Becks, K.H., Begalli, M., Behrmann, A., Belokopytov, Yu., Belous, K., Benekos, N.C., Benvenuti, A.C., Berat, C., Berggren, M., Berntzon, L., Bertrand, D., Besancon, M., Besson, N., Bilenky, Mikhail S., Bloch, D., Blom, H.M., Bol, L., Bonesini, M., Boonekamp, M., Booth, P.S.L., Borisov, G., Bosio, C., Botner, O., Boudinov, E., Bouquet, B., Bowcock, T.J.V., Boyko, I., Bozovic, I., Bozzo, M., Bracko, M., Branchini, P., Brenner, R.A., Bruckman, P., Brunet, J.M., Bugge, L., Buschmann, P., Caccia, M., Calvi, M., Camporesi, T., Canale, V., Carena, F., Carroll, L., Caso, C., Castillo Gimenez, M.V., Cattai, A., Cavallo, F.R., Chapkin, M., Charpentier, P., 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., Cossutti, F., Costa, M., Crawley, H.B., Crennell, D., Croix, J., Crosetti, G., Cuevas Maestro, J., Czellar, S., D'Hondt, J., Dalmau, J., Davenport, M., Da Silva, W., Della Ricca, G., Delpierre, P., Demaria, N., De Angelis, A., De Boer, W., De Clercq, C., De Lotto, B., De Min, A., De Paula, L., Dijkstra, H., Di Ciaccio, L., Doroba, K., Dracos, M., Drees, J., Dris, M., Eigen, G., Ekelof, T., Ellert, M., Elsing, M., Engel, J.P., Espirito Santo, M.C., Fanourakis, G., Fassouliotis, D., Feindt, M., Fernandez, J., Ferrer, A., Ferrer-Ribas, E., Ferro, F., Firestone, A., Flagmeyer, U., Foeth, H., Fokitis, E., Fontanelli, F., Franek, B., Frodesen, A.G., Fruhwirth, R., Fulda-Quenzer, F., Fuster, J., Galloni, A., Gamba, D., Gamblin, S., Gandelman, M., Garcia, C., Gaspar, C., Gaspar, M., Gasparini, U., Gavillet, P., Gazis, Evangelos, Gele, D., Geralis, T., Ghodbane, N., Gil Botella, Ines, Glege, F., Gokieli, R., Golob, B., Gomez-Ceballos, G., Goncalves, P., Gonzalez Caballero, I., Gopal, G., Gorn, L., Gouz, Yu., Gracco, V., Grahl, J., Graziani, E., Grosdidier, G., Grzelak, K., Guy, J., Haag, C., Hahn, F., Hahn, S., Haider, S., Hallgren, A., Hamacher, K., Hansen, J., Harris, F.J., Haug, S., Hauler, F., Hedberg, V., Heising, S., Hernandez, J.J., Herquet, P., Herr, H., Hertz, O., Higon, E., Holmgren, S.O., Holt, P.J., Hoorelbeke, S., Houlden, M., Hrubec, J., Hughes, G.J., Hultqvist, K., Jackson, John Neil, Jacobsson, R., Jalocha, P., Jarlskog, C., Jarlskog, G., Jarry, P., Jean-Marie, B., Jeans, D., Johansson, Erik Karl, Jonsson, P., Joram, C., Juillot, P., Jungermann, L., Kapusta, Frederic, Karafasoulis, K., Katsanevas, S., Katsoufis, E.C., Keranen, R., Kernel, G., Kersevan, B.P., Khokhlov, Yu.A., Khomenko, B.A., Khovanski, N.N., Kiiskinen, A., King, B., Kinvig, A., Kjaer, N.J., Klapp, O., Kluit, P., Kokkinias, P., Kostioukhine, V., Kourkoumelis, C., Kouznetsov, O., Krammer, M., Kriznic, E., Krumstein, Z., Kubinec, P., Kucharczyk, M., Kurowska, J., Lamsa, J.W., Laugier, J.P., Leder, G., Ledroit, Fabienne, Leinonen, L., Leisos, A., Leitner, R., Lenzen, G., Lepeltier, V., Lesiak, T., Lethuillier, M., Libby, J., Liebig, W., Liko, D., Lipniacka, A., Lippi, I., Loken, J.G., Lopes, J.H., Lopez, J.M., Lopez-Fernandez, R., Loukas, D., Lutz, P., Lyons, L., MacNaughton, J., Mahon, J.R., Maio, A., Malek, A., Maltezos, S., Malychev, V., Mandl, F., Marco, J., Marco, R., Marechal, B., Margoni, M., Marin, J.C., Mariotti, C., Markou, A., Martinez-Rivero, C., Marti i Garcia, S., Masik, J., Mastroyiannopoulos, N., Matorras, F., Matteuzzi, C., Matthiae, G., Mazzucato, F., Mazzucato, M., McCubbin, M., McKay, R., McNulty, R., McPherson, G., Merle, E., Meroni, C., Meyer, W.T., Migliore, E., Mirabito, L., Mitaroff, W.A., Mjoernmark, U., Moa, T., Moch, M., Monig, Klaus, Monge, M.R., Montenegro, J., Moraes, D., Morettini, P., Morton, G., Muller, U., Muenich, K., Mulders, M., Mundim, L.M., Murray, W.J., Muryn, B., Myatt, G., Myklebust, T., Nassiakou, M., Navarria, F.L., Nawrocki, K., Negri, P., Nemecek, S., Neufeld, N., Nicolaidou, R., Niezurawski, P., Nikolenko, M., Nomokonov, V., Nygren, A., Obraztsov, V., Olshevski, A.G., Onofre, A., Orava, R., Osterberg, K., Ouraou, A., Oyanguren, A., Paganoni, M., Paiano, S., Pain, R., Paiva, R., Palacios, J., Palka, H., Papadopoulou, T.D., Pape, L., Parkes, C., Parodi, F., Parzefall, U., Passeri, A., Passon, O., Pavel, T., Pegoraro, M., Peralta, L., Perepelitsa, V., Pernicka, M., Perrotta, A., Petridou, C., Petrolini, A., Phillips, H.T., Pierre, F., Pimenta, M., Piotto, E., Podobnik, T., Poireau, V., Pol, M.E., Polok, G., Poropat, P., Pozdniakov, V., Privitera, P., Pukhaeva, N., Pullia, A., Radojicic, D., Ragazzi, S., Rahmani, H., Ratoff, P.N., Read, Alexander L., Rebecchi, P., Redaelli, Nicola Giuseppe, Regler, M., Rehn, J., Reid, D., Reinhardt, R., Renton, P.B., Resvanis, L.K., Richard, F., Ridky, J., Rinaudo, G., Ripp-Baudot, Isabelle, Romero, A., Ronchese, P., Rosenberg, E.I., Rosinsky, P., Roudeau, P., Rovelli, T., Ruhlmann-Kleider, V., Ruiz, A., Saarikko, H., Sacquin, Y., Sadovsky, A., Sajot, G., Salmi, L., Salt, J., Sampsonidis, D., Sannino, M., Savoy-Navarro, A., Schwanda, C., Schwemling, P., Schwering, B., Schwickerath, U., Scuri, Fabrizio, Seager, P., Sedykh, Y., Segar, A.M., Sekulin, R., Shellard, R.C., Siebel, M., Simard, L., Simonetto, F., Sisakian, A.N., Smadja, G., Smirnov, N., Smirnova, O., Smith, G.R., Solovianov, O., Sopczak, A., Sosnowski, R., Spassov, T., Spiriti, E., Squarcia, S., Stanescu, C., Stanitzki, M., Stevenson, K., Stocchi, A., Strauss, J., Strub, R., Stugu, B., Szczekowski, M., Szeptycka, M., Tabarelli, T., Taffard, A., Chikilev, O., Tegenfeldt, F., Terranova, F., Timmermans, Jan, Tinti, N., Tkatchev, L.G., Tobin, M., Todorova, S., Tome, B., Tonazzo, A., Tortora, L., Tortosa, P., Treille, D., Tristram, G., Trochimczuk, M., Troncon, C., Turluer, M.L., Tyapkin, I.A., Tyapkin, P., Tzamarias, S., Ullaland, O., Uvarov, V., Valenti, G., Vallazza, E., Van Dam, Piet, Van den Boeck, W., Van Doninck, Walter, Van Eldik, J., Van Lysebetten, A., van Remortel, N., Van Vulpen, I., Vegni, G., Ventura, L., Venus, W., Verbeure, F., Verdier, P., Verlato, M., Vertogradov, L.S., Verzi, V., Vilanova, D., Vitale, L., Vlasov, E., Vodopianov, A.S., Voulgaris, G., Vrba, V., Wahlen, H., Washbrook, A.J., Weiser, C., Wicke, D., Wickens, J.H., Wilkinson, G.R., Winter, M., Witek, M., Wolf, G., Yi, J., Yushchenko, O., Zalewska, A., Zalewski, P., Zavrtanik, D., Zevgolatakos, E., Zimine, N.I., Zintchenko, A., Zoller, P., Zumerle, G., and Zupan, M.
Subjects: High Energy Physics::Phenomenology, High Energy Physics::Experiment, Particle Physics - Experiment
Abstract: Measurements of the trilinear gauge boson couplings $WW\gamma$ and $WWZ$ are presented using the data taken by DELPHI in 1998 at a centre-of-mass energy of 189~GeV and combined with DELPHI data at 183~GeV. Values are determined for \Dgz\ and \Dkg, the differences of the $WWZ$ charge coupling and of the $WW\gamma$ dipole coupling from their Standard Model values, and for \lm, the $WW\gamma$ quadrupole coupling. A measurement of the magnetic dipole and electric quadrupole moment of the $W$ is extracted from the results for \Dkg{} and \lm. The study uses data from the final states \jjlv, \jjjj \lX, \jjX\ and \gX, where $j$ represents a quark jet, $\ell$ an identified lepton and $X$ missing four-momentum. The observations are consistent with the predictions of the Standard Model. Measurements of the trilinear gauge boson couplings WWγ and WWZ are presented using the data taken by DELPHI in 1998 at a centre-of-mass energy of 189 GeV and combined with DELPHI data at 183 GeV. Values are determined for Δg 1 Z and Δκ γ , the differences of the WWZ charge coupling and of the WWγ dipole coupling from their Standard Model values, and for λ γ , the WWγ quadrupole coupling. A measurement of the magnetic dipole and electric quadrupole moment of the W is extracted from the results for Δκ γ and λ γ . The study uses data from the final states jj ℓ ν , jjjj , ℓ X , jjX and γX , where j represents a quark jet, ℓ an identified lepton and X missing four-momentum. The observations are consistent with the predictions of the Standard Model. Measurements of the trilinear gauge boson couplings WWgamma and WWZ are presented using the data taken by DELPHI in 1998 at a centre-of-mass energy of 189 GeV and combined with DELPHI data at 183 GeV. Values are determined for Delta(g_1^Z) and Delta(kappa_gamma), the differences of the WWZ charge coupling and of the WWgamma dipole coupling from their Standard Model values, and for lambda_gamma, the WWgamma quadrupole coupling. A measurement of the magnetic dipole and electric quadrupole moment of the W is extracted from the results for Delta(kappa_gamma) and lambda_gamma. The study uses data from the final states jjlv, jjjj, lX, jjX and gammaX, where j represents a quark jet, l an identified lepton and X missing four-momentum. The observations are consistent with the predictions of the Standard Model.
Published: 2001

18. Search for the Standard Model Higgs boson at LEP in the year 2000

Author: Goncalves, P. Gonzalez Caballero, I. Gopal, G. Gorn, L. Gouz, Yu. Gracco, V. Grahl, J. Graziani, E. Grosdidier, G. Grzelak, K. Guy, J. Haag, C. Hahn, F. Hahn, S. Haider, S. Hallgren, A. Hamacher, K. Hansen, J. Harris, F.J. Haug, S. Hauler, F. Hedberg, V. Heising, S. Hernandez, J.J. Herquet, P. Herr, H. Hertz, O. Higon, E. Holmgren, S.-O. Holt, P.J. Hoorelbeke, S. Houlden, M. Hrubec, J. Hughes, G.J. Hultqvist, K. Jackson, J.N. Jacobsson, R. Jalocha, P. Jarlskog, Ch. Jarlskog, G. Jarry, P. Jean-Marie, B. Jeans, D. Johansson, E.K. Jonsson, P. Joram, C. Juillot, P. Jungermann, L. Kapusta, F. Karafasoulis, K. Katsanevas, S. Katsoufis, E.C. Keranen, R. Kernel, G. Kersevan, B.P. Khomenko, B.A. Khovanski, N.N. Kiiskinen, A. King, B. Kinvig, A. Kjaer, N.J. Klapp, O. Kluit, P. Kokkinias, P. Kostioukhine, V. Kourkoumelis, C. Kouznetsov, O. Krammer, M. Kriznic, E. Krumstein, Z. Kubinec, P. Kucharczyk, M. Kurowska, J. Lamsa, J.W. Laugier, J.-P. Leder, G. Ledroit, F. Leinonen, L. Leisos, A. Leitner, R. Lenzen, G. Lepeltier, V. Lesiak, T. Lethuillier, M. Libby, J. Liebig, W. Liko, D. Lipniacka, A. Lippi, I. Loken, J.G. Lopes, J.H. Lopez, J.M. Lopez-Fernandez, R. Loukas, D. Lutz, P. Lyons, L. MacNaughton, J. Mahon, J.R. Maio, A. Malek, A. Maltezos, S. Malychev, V. Mandl, F. Marco, J. Marco, R. Marechal, B. Margoni, M. Marin, J.-C. Mariotti, C. Markou, A. Martinez-Rivero, C. Marti i Garcia, S. Masik, J. Mastroyiannopoulos, N. Matorras, F. Matteuzzi, C. Matthiae, G. Mazzucato, F. Mazzucato, M. Mc Cubbin, M. Mc Kay, R. Mc Nulty, R. Merle, E. Meroni, C. Meyer, W.T. Miagkov, A. Migliore, E. Mirabito, L. Mitaroff, W.A. Mjoernmark, U. Moa, T. Moch, M. Moenig, K. Monge, M.R. Montenegro, J. Moraes, D. Morettini, P. Morton, G. Mueller, U. Muenich, K. Mulders, M. Mundim, L.M. Murray, W.J. Muryn, B. Myatt, G. Myklebust, T. Nassiakou, M. Navarria, F.L. Nawrocki, K. Negri, P. Nemecek, S. Neufeld, N. Nicolaidou, R. Niezurawski, P. Nikolenko, M. Nomokonov, V. Nygren, A. Obraztsov, V. Olshevski, A.G. Onofre, A. Orava, R. Osterberg, K. Ouraou, A. Oyanguren, A. Paganoni, M. Paiano, S. Pain, R. Paiva, R. Palacios, J. Palka, H. Papadopoulou, T.D. Pape, L. Parkes, C. Parodi, F. Parzefall, U. Passeri, A. Passon, O. Peralta, L. Perepelitsa, V. Pernicka, M. Perrotta, A. Petridou, C. Petrolini, A. Phillips, H.T. Pierre, F. Pimenta, M. Piotto, E. Podobnik, T. Poireau, V. Pol, M.E. Polok, G. Poropat, P. Pozdniakov, V. Privitera, P. Pukhaeva, N. Pullia, A. Radojicic, D. Ragazzi, S. Rahmani, H. Read, A.L. Rebecchi, P. Redaelli, N.G. Regler, M. Rehn, J. Reid, D. Reinhardt, R. Renton, P.B. Resvanis, L.K. Richard, F. Ridky, J. Rinaudo, G. Ripp-Baudot, I. Romero, A. Ronchese, P. Rosenberg, E.I. Rosinsky, P. Abreu, P. Adam, W. Adye, T. Adzic, P. Albrecht, Z. Alderweireld, T. Alekseev, G.D. Alemany, R. Allmendinger, T. Allport, P.P. Almehed, S. Amaldi, U. Amapane, N. Amato, S. Anashkin, E. Anassontzis, E.G. Andersson, P. Andreazza, A. Andringa, S. Anjos, N. 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. Belokopytov, Yu. Belous, K. Benekos, N.C. Benvenuti, A.C. Berat, C. Berggren, M. Berntzon, L. Bertrand, D. Besancon, M. Besson, N. Bilenky, M.S. Bloch, D. Blom, H.M. Bol, L. Bonesini, M. Boonekamp, M. Booth, P.S.L. Borisov, G. Bosio, C. Botner, O. Boudinov, E. Bouquet, B. Bowcock, T.J.V. Boyko, I. Bozovic, I. Bozzo, M. Bracko, M. Branchini, P. Brenner, R.A. Bruckman, P. Brunet, J.-M. Bugge, L. Buschmann, P. Caccia, M. Calvi, M. Camporesi, T. Canale, V. Carena, F. Carroll, L. Caso, C. Castillo Gimenez, M.V. Cattai, A. Cavallo, F.R. Chapkin, M. 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. Cossutti, F. Costa, M. Crawley, H.B. Crennell, D. Croix, J. Crosetti, G. CuevasMaestro, J. Czellar, S. D'Hondt, J. Dalmau, J. Davenport, M. Da Silva, W. Della Ricca, G. Delpierre, P. Demaria, N. de Angelis, A. de Boer, W. de Clercq, C. de Lotto, B. DeMin, A. de Paula, L. Dijkstra, H. di Ciaccio, L. Doroba, K. Dracos, M. Drees, J. Dris, M. Eigen, G. Ekelof, T. Ellert, M. Elsing, M. Engel, J.-P. Espirito Santo, M. Fanourakis, G. Fassouliotis, D. Feindt, M. Fernandez, J. Ferrer, A. Ferrer-Ribas, E. Ferro, F. Firestone, A. Flagmeyer, U. Foeth, H. Fokitis, E. Franek, B. Frodesen, A.G. Fruhwirth, R. Fulda-Quenzer, F. Fuster, J. Gamba, D. Gamblin, S. Gandelman, M. Garcia, C. Gaspar, C. Gaspar, M. Gasparini, U. Gavillet, Ph. Gazis, E.N. Gele, D. Geralis, T. Ghodbane, N. Gil, I. Glege, F. Gokieli, R. Golob, B. Gomez-Ceballos, G. Roudeau, P. Rovelli, T. Ruhlmann-Kleider, V. Ruiz, A. Saarikko, H. Sacquin, Y. Sadovsky, A. Sajot, G. Salmi, L. Salt, J. Sampsonidis, D. Sannino, M. Savoy-Navarro, A. Schwanda, C. Schwemling, Ph. Schwering, B. Schwickerath, U. Scuri, F. Sedykh, Y. Segar, A.M. Sekulin, R. Sette, G. Shellard, R.C. Siebel, M. Simard, L. Simonetto, F. Sisakian, A.N. Smadja, G. Smirnov, N. Smirnova, O. Smith, G.R. Sokolov, A. Sopczak, A. Sosnowski, R. Spassov, T. Spiriti, E. Squarcia, S. Stanescu, C. Stanitzki, M. Stevenson, K. Stocchi, A. Strauss, J. Strub, R. Stugu, B. Szczekowski, M. Szeptycka, M. Tabarelli, T. Taffard, A. Tchikilev, O. Tegenfeldt, F. Terranova, F. Timmermans, J. Tinti, N. Tkatchev, L.G. Tobin, M. Todorova, S. Tome, B. Tonazzo, A. Tortora, L. Tortosa, P. Treille, D. Tristram, G. Trochimczuk, M. Troncon, C. Turluer, M.-L. Tyapkin, I.A. Tyapkin, P. Tzamarias, S. Ullaland, O. Uvarov, V. Valenti, G. Vallazza, E. Vander Velde, C. van Dam, P. van den Boeck, W. van Doninck, W.K. van Eldik, J. van Lysebetten, A. van Remortel, N. van Vulpen, I. Vegni, G. Ventura, L. Venus, W. Verbeure, F. Verdier, P. Verlato, M. Vertogradov, L.S. Verzi, V. Vilanova, D. Vitale, L. Vlasov, E. Vodopyanov, A.S. Voulgaris, G. Vrba, V. Wahlen, H. Washbrook, A.J. Weiser, C. Wicke, D. Wickens, J.H. Wilkinson, G.R. Winter, M. Witek, M. Wolf, G. Yi, J. Yushchenko, O. Zalewska, A. Zalewski, P. Zavrtanik, D. Zevgolatakos, E. Zimin, N.I. Zintchenko, A. Zoller, Ph. Zumerle, G. Zupan, M.
Subjects: High Energy Physics::Phenomenology, High Energy Physics::Experiment
Abstract: Searches for the Standard Model Higgs boson have been performed in the data collected by the DELPHI experiment at LEP in the year 2000 at centre-of-mass energies between 200 and 209 GeV corresponding to a total integrated luminosity of 224 pb-1. No evidence for a Higgs signal is observed in the kinematically accessible mass range, and a 95% CL lower mass limit of 114.3 GeV/c2 is set, to be compared with an expected median limit of 113.5 GeV/c2 for these data. © 2001 Elsevier Science B.V.
Published: 2001

19. Search for R-parity violation with a Ubar Dbar Dbar coupling at sqrt(s)=189 GeV

Author: Abreu, P., Adam, W., Adye, T., Adzic, P., Azhinenko, 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., Asman, B., Augustin, J.-E., Augustinus, A., Baillon, P., Bambade, P., Barao, F., Barbiellini, Guido, Barbier, R., Bardin, D.Yu., Barker, G., Baroncelli, A., Battaglia, M., Baubillier, M., Becks, K.H., Begalli, M., Behrmann, A., Beilliere, P., Belokopytov, Yu., Benekos, N.C., Benvenuti, A.C., Berat, C., Berggren, M., Bertrand, D., Besancon, M., Bigi, M., Bilenkii, M.S., Bizouard, M.A., Bloch, D., Blom, H.M., Bonesini, M., Boonekamp, M., Booth, P.S.L., Borgland, A.W., 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., Chabaud, V., Charpentier, P., Checchia, P., Chelkov, G.A., Chierici, R., Shlyapnikov, P., Chochula, P., Chorowicz, V., Chudoba, J., Cieslik, K., Collins, P., Contri, R., Cortina, E., Cosme, G., Cossutti, F., Crawley, H.B., Crennell, D., Crosetti, G., Cuevas Maestro, J., Czellar, S., Davenport, M., Da Silva, W., Della Ricca, G., Delpierre, P., Demaria, N., De Angelis, A., De Boer, W., De Clercq, C., De Lotto, B., De Min, A., De Paula, L., Dijkstra, H., Di Ciaccio, L., Dolbeau, J., Doroba, K., Dracos, M., Drees, J., Dris, M., Duperrin, A., Durand, J.D., Eigen, G., Ekelof, T., Ekspong, G., Ellert, M., Elsing, M., Engel, J.P., Espirito Santo, M., Fanourakis, G., Fassouliotis, D., Fayot, J., Feindt, M., Fenyuk, A., Ferrer, A., Ferrer-Ribas, E., Ferro, F., Fichet, S., Firestone, A., Flagmeyer, U., Foeth, H., Fokitis, E., Fontanelli, F., Franek, B., Frodesen, A.G., Fruhwirth, R., Fulda-Quenzer, F., Fuster, J., Galloni, A., Gamba, D., Gamblin, S., Gandelman, M., Garcia, C., Gaspar, C., Gaspar, M., Gasparini, U., Gavillet, P., Gazis, E.N., Gele, D., Ghodbane, N., Gil, I., Glege, F., Gokieli, R., Golob, B., Gomez-Ceballos, G., Goncalves, P., Gonzalez Caballero, I., Gopal, G., Gorn, L., Gouz, Yu., Gracco, V., Grahl, J., Graziani, E., Gris, P., Grosdidier, G., Grzelak, K., Guy, J., Haag, C., Hahn, F., Hahn, S., Haider, S., Hallgren, A., Hamacher, K., Hansen, J., Harris, F.J., Hedberg, V., Heising, S., Hernandez, J.J., Herquet, P., Herr, H., Hessing, T.L., Heuser, J.M., Higon, E., Holmgren, S.O., Holt, P.J., Hoorelbeke, S., Houlden, M., Hrubec, J., Huber, M., Huet, K., Hughes, G.J., Hultqvist, K., Jackson, J.N., Jacobsson, R., Jalocha, P., Janik, R., Jarlskog, C., Jarlskog, G., Jarry, P., Jean-Marie, B., Jeans, D., Johansson, E.K., Jonsson, P., Joram, C., Juillot, P., Jungermann, L., Kapusta, F., Karafasoulis, K., Katsanevas, S., Katsoufis, E.C., Keranen, R., Kernel, G., Kersevan, B.P., Khomenko, B.A., Khovansky, N.N., Kiiskinen, A., King, B., Kinvig, A., Kjaer, N.J., Klapp, O., Klein, H., Kluit, P., Kokkinias, P., Kostyukhin, V., Kourkoumelis, C., Kuznetsov, O., Krammer, M., Kriznic, E., Krumshtein, Z., Kubinec, P., Kurowska, J., Kurvinen, K., Lamsa, J.W., Lane, D.W., Lapin, V., Laugier, J.P., Lauhakangas, R., Leder, G., Ledroit, F., Lefebure, V., Leinonen, L., Leisos, A., Leitner, R., Lemonne, J., Lenzen, G., Lepeltier, V., Lesiak, T., Lethuillier, M., Libby, J., Liebig, W., Liko, D., Lipniacka, A., Lippi, I., Lorstad, B., Loken, J.G., Lopes, J.H., Lopez, J.M., Lopez-Fernandez, R., Loukas, D., Lutz, P., Lyons, L., MacNaughton, J., Mahon, J.R., Maio, A., Malek, A., Malmgren, T.G.M., Maltezos, S., Malychev, V., Mandl, F., Marco, J., Marco, R., Marechal, B., Margoni, M., Marin, J.C., Mariotti, C., Markou, A., Martinez-Rivero, C., Martinez-Vidal, F., Marti, I Garcia S., Masik, J., Mastroyiannopoulos, N., Matorras, F., Matteuzzi, C., Matthiae, G., Mazzucato, F., Mazzucato, M., McCubbin, M., McKay, R., McNulty, R., McPherson, G., Merle, E., Meroni, C., Meyer, W.T., Myagkov, A., Migliore, E., Mirabito, L., Mitaroff, W.A., Mjornmark, U., Moa, T., Moch, M., Moller, R., Monig, K., Monge, M.R., Moraes, D., Moreau, X., Morettini, P., Morton, G., Muller, U., Munich, K., Mulders, M., Mulet-Marquis, C., Muresan, R., Murray, W.J., Muryn, B., Myatt, G., Myklebust, T., Naraghi, F., Nassiakou, M., Navarria, F.L., Navas, S., Nawrocki, K., Negri, P., Neufeld, N., Nicolaidou, R., Nielsen, B.S., Niezurawski, P., Nikolenko, M., Nomokonov, V., Nygren, A., Obraztsov, V., Olshevsky, A.G., Onofre, A., Orava, R., Orazi, G., Osterberg, K., Ouraou, A., Paganoni, M., Paiano, S., Pain, R., Paiva, R., Palacios, J., Palka, H., Papadopoulou, T.D., Papageorgiou, K., Pape, L., Parkes, C., Parodi, F., Parzefall, U., Passeri, A., Passon, O., Pavel, T., Pegoraro, M., Peralta, L., Pernicka, M., Perrotta, A., Petridou, C., Petrolini, A., Phillips, H.T., Pierre, F., Pimenta, M., Piotto, E., Podobnik, T., Pol, M.E., Polok, G., Poropat, P., Pozdnyakov, V., Privitera, P., Pukhaeva, N., Pullia, A., Radojicic, D., Ragazzi, S., Rahmani, H., Rames, J., Ratoff, P.N., Read, A.L., Rebecchi, P., Redaelli, N.G., Regler, M., Rehn, J., Reid, D., Reinhardt, R., Renton, P.B., Resvanis, L.K., Richard, F., Ridky, J., Rinaudo, G., Ripp-Baudot, I., Rohne, O., Romero, A., Ronchese, P., Rosenberg, E.I., Rosinsky, P., Roudeau, P., Rovelli, T., Royon, C., Ruhlmann-Kleider, V., Ruiz, A., Saarikko, H., Sacquin, Y., Sadovsky, A., Sajot, G., Salt, J., Sampsonidis, D., Sannino, M., Schwemling, P., Schwering, B., Schwickerath, U., Scuri, F., Seager, P., Sedykh, Yu., Segar, A.M., Seibert, N., Sekulin, R., Shellard, R.C., Siebel, M., Simard, L., Simonetto, F., Sisakian, A.N., Smadja, G., Smirnov, N., Smirnova, O., Smith, G.R., Sopczak, A., Sosnowski, R., Spassoff, T., Spiriti, E., Squarcia, S., Stanescu, C., Stanic, S., Stanitzki, M., Stevenson, K., Stocchi, A., Strauss, J., Strub, R., Stugu, B., Szczekowski, M., Szeptycka, M., Tabarelli, T., Taffard, A., Chikilev, O., Tegenfeldt, F., Terranova, F., Thomas, J., Timmermans, J., Tinti, N., Tkachev, L.G., Tobin, M., Todorova, S., Tomaradze, A., Tome, B., Tonazzo, A., Tortora, L., Tortosa, Pablo, Transtromer, G., Treille, D., Tristram, G., Trochimczuk, M., Troncon, C., Turluer, M.L., Tyapkin, I.A., Tzamarias, S., Ullaland, O., Uvarov, V., Valenti, G., Vallazza, E., Vander Velde, C., Van Dam, P., Van Den Boeck, W., Van Doninck, W.K., Van Eldik, J., Van Lysebetten, A., Van Remortel, N., Van Vulpen, I., Vegni, G., Ventura, L., Venus, W., Verbeure, F., Verdier, P., Verlato, M., Vertogradov, L.S., Verzi, V., Vilanova, D., Vitale, L., Vlasov, E., Vodopyanov, A.S., Voulgaris, G., Vrba, V., Wahlen, H., Walck, C., Washbrook, A.J., Weiser, C., Wicke, D., Wickens, J.H., Wilkinson, G.R., Winter, M., Witek, M., Wolf, G., Yi, J., Yushchenko, O., Zalewska, A., Zalewski, P., Zavrtanik, D., Zevgolatakos, E., Zimin, N.I., Zinchenko, A., Zoller, P., Zucchelli, G.C., Zumerle, G., Institut de Physique Nucléaire de Lyon (IPNL), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de l'Accélérateur Linéaire (LAL), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut de Recherches Subatomiques (IReS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Cancéropôle du Grand Est-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Physique Corpusculaire et Cosmologie - Collège de France (PCC), Collège de France (CdF (institution))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Centre de Physique des Particules de Marseille (CPPM), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), DELPHI, Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), Collège de France (CdF)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Aix Marseille Université (AMU), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC), and Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11)
Subjects: High Energy Physics - Experiment (hep-ex), High Energy Physics::Phenomenology, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], FOS: Physical sciences, High Energy Physics::Experiment, High Energy Physics - Experiment
Abstract: 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 Ubar Dbar Dbar 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: m_{\tilde{\chi^0_{1}}} \geq 32 GeV chargino mass: m_{\tilde{\chi^+_{1}}} \geq 94 GeV stop and sbottom mass (indirect decay) with \Delta M > 5 GeV: m_{\tilde{t_1}} \geq 74 GeV, for \Phi_{mix}=0 rad m_{\tilde{t_1}} \geq 59 GeV, for \Phi_{mix}=0.98 rad m_{\tilde{b_1}} \geq 72 GeV, for \Phi_{mix}=0 rad. The angle \phi_{mix} is the mixing angle between left and right handed quarks., Comment: 20 pages, 9 figures
Published: 2001
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20. Search for R-parity violation with a $\overline{U}\overline{D}\overlin e{D}$ coupling at $\sqrt{s}$=189 GeV

Author: Abreu, P., Blom, H.M., Boudinov, E., Kluit, P.M., Mulders, M.P., Reid, D.W., Timmermans, J.J.M., van Dam, P.H.A., van Eldik, J.E., van Vulpen, I.B., and Delphi (IHEF, IoP, FNWI)
Published: 2001

21. Search for neutralino pair production at √s = 189 GeV

Author: 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. Anjos, N. 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. Belokopytov, Y. Benekos, N.C. Benvenuti, A.C. Berat, C. Berggren, M. Berntzon, L. Bertrand, D. Besancon, M. Besson, N. Bilenky, M.S. Bizouard, M.-A. Bloch, D. Blom, H.M. Bol, L. 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. Buschmann, P. Caccia, M. Calvi, M. Camporesi, T. Canale, V. Carena, F. Carroll, L. Caso, C. Castillo Gimenez, M.V. Cattai, A. Cavallo, F.R. Charpentier, P. 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. Cossutti, F. Costa, M. Crawley, H.B. Crennell, D. Croix, J. Crosetti, G. Cuevas Maestro, J. Czellar, S. D'Hondt, J. Dalmau, J. Davenport, M. Da Silva, W. Della Ricca, G. Delpierre, P. Demaria, N. De Angelis, A. De Boer, W. De Clercq, C. De Lotto, B. De Min, A. De Paula, L. Dijkstra, H. Di Ciaccio, L. Doroba, K. Dracos, M. Drees, J. Dris, M. Eigen, G. Ekelof, T. Ellert, M. Elsing, M. Engel, J.-P. Espirito Santo, M. Fanourakis, G. Fassouliotis, D. Feindt, M. Fernandez, J. Ferrer, A. Ferrer-Ribas, E. Ferro, F. Firestone, A. Flagmeyer, U. Foeth, H. Fokitis, E. Fontanelli, F. Franek, B. Frodesen, A.G. Fruhwirth, R. Fulda-Quenzer, F. Fuster, J. Galloni, A. Gamba, D. Gamblin, S. Gandelman, M. Garcia, C. Gaspar, C. Gaspar, M. Gasparini, U. Gavillet, Ph. Gazis, E.N. Gele, D. Geralis, T. Gerdyukov, L. Ghodbane, N. Gil, I. Glege, F. Gokieli, R. Golob, B. Gomez-Ceballos, G. Goncalves, P. Gonzalez Caballero, I. Gopal, G. Gorn, L. Gouz, Y. Grahl, J. Graziani, E. Grosdidier, G. Grzelak, K. Guy, J. Haag, C. Hahn, F. Hahn, S. Haider, S. Hallgren, A. Hamacher, K. Hansen, J. Harris, F.J. Haug, S. Hauler, F. Hedberg, V. Heising, S. Hernandez, J.J. Herquet, P. Herr, H. Hertz, O. Higon, E. Holmgren, S.-O. Holt, P.J. Hoorelbeke, S. Houlden, M. Hrubec, J. Hughes, G.J. Hultqvist, K. Jackson, J.N. Jacobsson, R. Jalocha, P. Jarlskog, Ch. Jarlskog, G. Jarry, P. Jean-Marie, B. Jeans, D. Johansson, E.K. Jonsson, P. Joram, C. Juillot, P. Jungermann, L. Kapusta, F. Karafasoulis, K. Katsanevas, S. Katsoufis, E.C. Keranen, R. Kernel, G. Kersevan, B.P. Khokhlov, Y. Khomenko, B.A. Khovanski, N.N. Kiiskinen, A. King, B. Kinvig, A. Kjaer, N.J. Klapp, O. Kluit, P. Kokkinias, P. Kostioukhine, V. Kourkoumelis, C. Kouznetsov, O. Krammer, M. Kriznic, E. Krumstein, Z. Kubinec, P. Kucharczyk, M. Kurowska, J. Lamsa, J.W. Laugier, J.-P. Leder, G. Ledroit, F. Leinonen, L. Leisos, A. Leitner, R. Lenzen, G. Lepeltier, V. Lesiak, T. Lethuillier, M. Libby, J. Liebig, W. Liko, D. Lipniacka, A. Lippi, I. Loken, J.G. Lopes, J.H. Lopez, J.M. Lopez-Fernandez, R. Loukas, D. Lutz, P. Lyons, L. MacNaughton, J. Mahon, J.R. Maio, A. Malek, A. Maltezos, S. Malychev, V. Mandl, F. Marco, J. Marco, R. Marechal, B. Margoni, M. Marin, J.-C. Mariotti, C. Markou, A. Martinez-Rivero, C. Marti i Garcia, S. Masik, J. Mastroyiannopoulos, N. Matorras, F. Matteuzzi, C. Matthiae, G. Mazzucato, F. Mazzucato, M. Mc Cubbin, M. Mc Kay, R. Mc Nulty, R. Mc Pherson, G. Merle, E. Meroni, C. Meyer, W.T. Migliore, E. Mirabito, L. Mitaroff, W.A. Mjoernmark, U. Moa, T. Moch, M. Moenig, K. Monge, M.R. Montenegro, J. Moraes, D. Morettini, P. Morton, G. Mueller, U. Muenich, K. Mulders, M. Mundim, L.M. Murray, W.J. Muryn, B. Myatt, G. Myklebust, T. Nassiakou, M. Navarria, F.L. Nawrocki, K. Negri, P. Nemecek, S. Neufeld, N. Nicolaidou, R. Niezurawski, P. Nikolenko, M. Nomokonov, V. Nygren, A. Obraztsov, V. Olshevski, A.G. Onofre, A. Orava, R. Osterberg, K. Ouraou, A. Oyanguren, A. Paganoni, M. Paiano, S. Pain, R. Paiva, R. Palacios, J. Palka, H. Papadopoulou, T.D. Pape, L. Parkes, C. Parodi, F. Parzefall, U. Passeri, A. Passon, O. Pavel, T. Pegoraro, M. Peralta, L. Perepelitsa, V. Pernicka, M. Perrotta, A. Petridou, C. Petrolini, A. Phillips, H.T. Pierre, F. Pimenta, M. Piotto, E. Podobnik, T. Poireau, V. Pol, M.E. Polok, G. Poropat, P. Pozdniakov, V. Privitera, P. Pukhaeva, N. Pullia, A. Radojicic, D. Ragazzi, S. Rahmani, H. Read, A.L. Rebecchi, P. Redaelli, N.G. Regler, M. Rehn, J. Reid, D. Reinhardt, R. Renton, P.B. Resvanis, L.K. Richard, F. Ridky, J. Rinaudo, G. Ripp-Baudot, I. Romero, A. Ronchese, P. Rosenberg, E.I. Rosinsky, P. Rovelli, T. Ruhlmann-Kleider, V. Ruiz, A. Saarikko, H. Sacquin, Y. Sadovsky, A. Sajot, G. Salmi, L. Salt, J. Sampsonidis, D. Sannino, M. Savoy-Navarro, A. Schwanda, C. Schwemling, P. Schwering, B. Schwickerath, U. Scuri, F. Sedykh, Y. Segar, A.M. Sekulin, R. Sette, G. Shellard, R.C. Siebel, M. Simard, L. Simonetto, F. Sisakian, A.N. Smadja, G. Smirnov, N. Smirnova, O. Smith, G.R. Sokolov, A. Sopczak, A. Sosnowski, R. Spassov, T. Spiriti, E. Squarcia, S. Stanescu, C. Stanitzki, M. Stevenson, K. Stocchi, A. Strandberg, J. Strauss, J. Strub, R. Stugu, B. Szczekowski, M. Szeptycka, M. Tabarelli, T. Taffard, A. Tchikilev, O. Tegenfeldt, F. Terranova, F. Timmermans, J. Tinti, N. Tkatchev, L.G. Tobin, M. Todorova, S. Tome, B. Tonazzo, A. Tortora, L. Tortosa, P. Treille, D. Tristram, G. Trochimczuk, M. Troncon, C. Turluer, M.-L. Tyapkin, I.A. Tyapkin, P. Tzamarias, S. Ullaland, O. Uvarov, V. Valenti, G. Vallazza, E. Vander Velde, C. Van Dam, P. Van den Boeck, W. Van Eldik, J. Van Lysebetten, A. van Remortel, N. Van Vulpen, I. Vegni, G. Ventura, L. Venus, W. Verbeure, F. Verdier, P. Verlato, M. Vertogradov, L.S. Verzi, V. Vilanova, D. Vitale, L. Vlasov, E. Vodopyanov, A.S. Voulgaris, G. Vrba, V. Wahlen, H. Washbrook, A.J. Weiser, C. Wicke, D. Wickens, J.H. Wilkinson, G.R. Winter, M. Witek, M. Wolf, G. Yi, J. Yushchenko, O. Zalewska, A. Zalewski, P. Zavrtanik, D. Zevgolatakos, E. Zimin, N.I. Zintchenko, A. Zoller, P. Zumerle, G. Zupan, M.
Subjects: High Energy Physics::Phenomenology, High Energy Physics::Experiment
Abstract: A search for pair-production of neutralinos at a LEP centre-of-mass energy of 189 GeV gave no evidence for a signal. This limits the neutralino production cross-section and excludes regions in the parameter space of the Minimal Supersymmetric Standard Model (MSSM).
Published: 2001

22. Measurement of the Tau topological branching ratios

Author: Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., Alekseev, G.D., Alemany, R., Allmendinger, T., Allport, P.P., Almehed, S., Amaldi, U., Amapane, N., Amato, S., Anashkin, E., Anassontzis, E.G., Andersson, P., Andreazza, A., Andringa, S., Anjos, N., Antilogus, P., Apel, W.D., Arnoud, Y., Asman, 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., Bellunato, T., Belokopytov, Y., Belous, K., Benekos, N.C., Benvenuti, A.C., Berat, C., Berggren, M., Berntzon, L., Bertrand, D., Besancon, M., Besson, N., Bilenky, M.S., Bloch, D., Blom, H.M., Bol, J., Bonesini, M., Boonekamp, M., Booth, P.S.L., Borisov, G., Bosio, C., Botner, O., Boudinov, E., Bouquet, B., Bowcock, T.J.V., Boyko, I., Bozovic, I., Bozzo, M., Bracko, M., Branchini, P., Brenner, R.A., Brodet, E., Bruckman, P., Brunet, J.M., Bugge, L., Buschmann, P., Caccia, M., Calvi, M., Camporesi, T., Canale, V., Carena, F., Carroll, L., Caso, C., Cattai, A., Cavallo, F.R., Chapkin, M., Charpentier, P., Checehia, P., Chelkov, G.A., Chierici, R., Chliapnikov, P., Chochula, P., Chorowicz, V., Chudoba, J., Chung, S.H., Cieslik, K., Collins, P., Contri, R., Cosme, G., Cossutti, F., Costa, M., Crawley, H.B., Crennell, D., Croix, J., Maestro, J.C., Czellar, S., D'Hondt, J., Dalmau, J., Davenport, M., Da Silva, W., Della Ricca, G., Delpierre, P., Demaria, N., De Angelis, A., De Boer, W., De Clercq, C., De Lotto, B., De Min, A., de Paula, L., Dijkstra, H., Di Ciaccio, L., Doroba, K., Dracos, M., Drees, J., Dris, M., Eigen, G., Ekelof, T., Ellert, M., Elsing, M., Engel, J.P., Santo, M.E., Fanourakis, G., Fassouliotis, D., Feindt, T., Fernandez, J., Ferrer, A., Ferrer-Ribas, E., Ferro, F., Firestone, A., Flagmeyer, U., Foeth, H., Fokitis, E., Fontanelli, F., Franek, B., Frodesen, A.G., Fruhwirth, R., Fulda-Quenzer, F., Fuster, J., Gamba, D., Gamblin, S., Gandelman, M., Garcia, C., Gaspar, C., Gaspar, M., Gasparini, U., Gavillet, P., Gazis, E.N., Gele, D., Geralis, T., Ghodbane, N., Glege, F., Gokieli, R., Golob, B., Gomez-Ceballos, G., Goncalves, P., Caballero, I.G., Gopal, G., Gorn, L., Gouz, Y., Gracco, V., Grahl, J., Graziani, E., Grosdidier, G., Grzelak, K., Guy, J., Haag, C., Hahn, F., Hahn, S., Haider, S., Hajduk, Z., Hallgren, A., Hamacher, K., Hamilton, K., Hansen, J., Harris, F.J., Haug, S., Hauler, F., Hedberg, V., Heising, S., Herquet, P., Herr, H., Hertz, O., Higon, E., Holmgren, S.O., Holt, P.J., Hoorelbeke, S., Houlden, M., Hrubec, J., Hughes, G.J., Hultqvist, K., Jackson, J.N., Jacobsson, R., Jarlskog, C., Jarlskog, G., Jarry, P., Jean-Marie, B., Jeans, D., Johansson, E.K., Jonsson, P., Joram, C., Juillot, P., Jungermann, L., Kapusta, F., Karafasoulis, K., Katsanevas, S., Katsoufis, E.C., Keranen, R., Kernel, G., Kersevan, B.P., Khomenko, B.A., Khovanski, N.N., Kiiskinen, A., King, B., Kinvig, A., Kjaer, N.J., Klapp, O., Kluit, P., Kokkinias, P., Kostioukhine, V., Kourkoumelis, C., Kouznetsov, O., Krammer, M., Kriznic, E., Krumstein, Z., Kubinec, P., Kucewicz, W., Kucharczyk, M., Kurowska, J., Lamsa, J.W., Laugier, J.P., Leder, G., Ledroit, F., Leinonen, L., Leisos, A., Leitner, R., Lemonne, J., Lenzen, G., Lepeltier, V., Lethuillier, M., Libby, J., Liebig, W., Liko, D., Lipniacka, A., Lippi, I., Loken, J.G., and Lopes, J.H.
Subjects: QC
Abstract: Using data collected in the DELPHI detector at LEP-1, measurements of the inclusive T branching ratios for decay modes containing one, three, or five charged particles have been performed, giving the following results: B-1 equivalent to B T- (particle)(-) greater than or equal to0 pi (0) greater than or equal to 0K(0) v(T) (v(overbar)) = 85.316 +/- 0.093 +/- 0.049) %; B-3 equivalent to B(T- → 2h(-)h(+) greater than or equal to 0 pi (0) greater than or equal to0 pi (0) greater than or equal to 0K(0)z17) = (14.569 +/- 0.093 +/- 0.048)%; B-5 equivalent to B(T- → 3h(-)2h(+) greater than or equal to 0 pi (0) greater than or equal to 0K0(0)v(T)) = (0.115 +/- 0.013 +/- 0.006)%, where h is either a charged pi or K meson. The first quoted uncertainties are statistical and the second systematic.
Published: 2001

23. Measurement of trilinear gauge boson couplings W W V, (V ≡ Z, γ) in e+e- collisions at 189 GeV

Author: Abreu, P. Adam, W. Adye, T. Adzic, P. Albrecht, Z. Alderweireld, T. Alekseev, G.D. Alemany, R. Allmendinger, T. Allport, P.P. Almehed, S. Amaldi, U. Amapane, N. Amato, S. Anashkin, E. Anassontzis, E.G. Andersson, P. Andreazza, A. Andringa, S. Anjos, N. 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. Belokopytov, Yu. Belous, K. Benekos, N.C. Benvenuti, A.C. Berat, C. Berggren, M. Berntzon, L. Bertrand, D. Besancon, M. Besson, N. Bilenky, M.S. Bloch, D. Blom, H.M. Bol, L. Bonesini, M. Boonekamp, M. Booth, P.S.L. Borisov, G. Bosio, C. Botner, O. Boudinov, E. Bouquet, B. Bowcock, T.J.V. Boyko, I. Bozovic, I. Bozzo, M. Bracko, M. Branchini, P. Brenner, R.A. Bruckman, P. Brunet, J.-M. Bugge, L. Buschmann, P. Caccia, M. Calvi, M. Camporesi, T. Canale, V. Carena, F. Carroll, L. Caso, C. Castillo Gimenez, M.V. Cattai, A. Cavallo, F.R. Chapkin, M. 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. Et al.
Subjects: High Energy Physics::Phenomenology, High Energy Physics::Experiment
Abstract: Measurements of the trilinear gauge boson couplings WWγ and WWZ are presented using the data taken by DELPHI in 1998 at a centre-of-mass energy of 189 GeV and combined with DELPHI data at 183 GeV. Values are determined for ΔgZ 1 and Δκγ, the differences of the WWZ charge coupling and of the WWγ dipole coupling from their Standard Model values, and for λγ, the WWγ quadrupole coupling. A measurement of the magnetic dipole and electric quadrupole moment of the W is ,extracted from the results for Δκγ and λγ. The study uses data from the final states jjℓν, jjjj, ℓX, jjX and γX, where j represents a quark jet, ℓ an identified lepton and X missing four-momentum. The observations are consistent with the predictions of the Standard Model. © 2001 Published by Elsevier Science B.V.
Published: 2001

24. Measurement of V$_{cb}$ from the decay process $\bar{B^0}$ - D$^{*+} \ell^- \bar{\nu}$

Author: Abreu, P., Adam, W., Adye, T., Adzic, P., 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., Asman, B., Augustin, J.-E., Augustinus, A., Baillon, P., Ballestrero, A., Bambade, P., Barao, F., Barbiellini, Guido, Barbier, R., Bardin, D.Y., Barker, G., Baroncelli, A., Battaglia, M., Baubillier, M., Becks, K.H., Begalli, M., Behrmann, A., Beilliere, P., Belokopytov, Yu., Belous, K., 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., Chapkin, M., Charpentier, P., 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., Cossutti, F., Costa, M., Crawley, H.B., Crennell, D., Crepe, S., Crosetti, G., Cuevas Maestro, J., Czellar, S., D'Hondt, J., Dalmau, J., Davenport, M., Da Silva, W., Della Ricca, G., Delpierre, P., Demaria, N., De Angelis, A., De Boer, W., De Clercq, C., De Lotto, B., De Min, A., De Paula, L., Dijkstra, H., Di Ciaccio, L., Dolbeau, J., Doroba, K., Dracos, M., Drees, J., Dris, M., Duperrin, A., Eigen, G., Ekelof, T., Ellert, M., Elsing, M., Engel, J.P., Espirito Santo, M., Fanourakis, G., Fassouliotis, D., Feindt, M., Fernandez, J., Ferrer, A., Ferrer-Ribas, E., Ferro, F., Firestone, A., Flagmeyer, U., Foeth, H., Fokitis, E., Fontanelli, F., Franek, B., Frodesen, A.G., Fruhwirth, R., Fulda-Quenzer, F., Fuster, J., Galloni, A., Gamba, D., Gamblin, S., Gandelman, M., Garcia, C., Gaspar, C., Gaspar, M., Gasparini, U., Gavillet, P., Gazis, E.N., Gele, D., Geralis, T., Ghodbane, N., Gil, I., Glege, F., Gokieli, R., Golob, B., Gomez-Ceballos, G., Goncalves, P., Gonzalez Caballero, I., Gopal, G., Gorn, L., Gouz, Yu., Gracco, V., Grahl, J., Graziani, E., Gris, P., Grosdidier, G., Grzelak, K., Guy, J., Haag, C., Hahn, F., Hahn, S., Haider, S., Hallgren, A., Hamacher, K., Hansen, J., Harris, F.J., Hauler, F., Hedberg, V., Heising, S., Hernandez, J.J., Herquet, P., Herr, H., Higon, E., Holmgren, S.O., Holt, P.J., Hoorelbeke, S., Houlden, M., Hrubec, J., Huber, M., Hughes, G.J., Hultqvist, K., Jackson, J.N., Jacobsson, R., Jalocha, P., Janik, R., Jarlskog, C., Jarlskog, G., Jarry, P., Jean-Marie, B., Jeans, D., Johansson, E.K., Jonsson, P., Joram, C., Juillot, P., Jungermann, L., Kapusta, F., Karafasoulis, K., Katsanevas, S., Katsoufis, E.C., Keranen, R., Kernel, G., Kersevan, B.P., Khokhlov, Yu., Khomenko, B.A., Khovanski, N.N., Kiiskinen, A., King, B., Kinvig, A., Kjaer, N.J., Klapp, O., Klein, H., Kluit, P., Kokkinias, P., Kostioukhine, V., Kourkoumelis, C., Kouznetsov, O., Krammer, M., Kriznic, E., Krumstein, Z., Kubinec, P., Kurowska, J., Kurvinen, K., Lamsa, J.W., Lane, D.W., Lapin, V., Laugier, J.P., Lauhakangas, R., Leder, G., Ledroit, F., Leinonen, L., Leisos, A., Leitner, R., Lenzen, G., Lepeltier, V., Lesiak, T., Lethuillier, M., Libby, J., Liebig, W., Liko, D., Lipniacka, A., Lippi, I., Loerstad, B., Loken, J.G., Lopes, J.H., Lopez, J.M., Lopez-Fernandez, R., Loukas, D., Lutz, P., Lyons, L., MacNaughton, J., Mahon, J.R., Maio, A., Malek, A., Maltezos, S., Malychev, V., Mandl, F., Marco, J., Marco, R., Marechal, B., Margoni, M., Marin, J.C., Mariotti, C., Markou, A., Martinez-Rivero, C., Marti, I Garcia S., Masik, J., Mastroyiannopoulos, N., Matorras, F., Matteuzzi, C., Matthiae, G., Mazzucato, F., Mazzucato, M., McCubbin, M., McKay, R., McNulty, R., McPherson, G., Meroni, C., Meyer, W.T., Miagkov, A., Migliore, E., Mirabito, L., Mitaroff, W.A., Mjoernmark, U., Moa, T., Moch, M., Moeller, R., Moenig, K., Monge, M.R., Moraes, D., Morettini, P., Morton, G., Mueller, U., Muenich, K., Mulders, M., Mulet-Marquis, C., Muresan, R., Murray, W.J., Muryn, B., Myatt, G., Myklebust, T., Naraghi, F., Nassiakou, M., Navarria, F.L., Nawrocki, K., Negri, P., Neufeld, N., Nicolaidou, R., Nielsen, B.S., Niezurawski, P., Nikolenko, M., Nomokonov, V., Nygren, A., Obraztsov, V., Olshevski, A.G., Onofre, A., Orava, R., Orazi, G., Osterberg, K., Ouraou, A., Oyanguren, A., Paganoni, M., Paiano, S., Pain, R., Paiva, R., Palacios, J., Palka, H., Papadopoulou, T.D., Pape, L., Parkes, C., Parodi, F., Parzefall, U., Passeri, A., Passon, O., Pavel, T., Pegoraro, M., Peralta, L., Pernicka, M., Perrotta, A., Petridou, C., Petrolini, A., Phillips, H.T., Pierre, F., Pimenta, M., Piotto, E., Podobnik, T., Poireau, V., Pol, M.E., Polok, G., Poropat, P., Pozdniakov, V., Privitera, P., Pukhaeva, N., Pullia, A., Radojicic, D., Ragazzi, S., Rahmani, H., Rames, J., Ratoff, P.N., Read, A.L., Rebecchi, P., Redaelli, N.G., Regler, M., Rehn, J., Reid, D., Reinertsen, P., Reinhardt, R., Renton, P.B., Resvanis, L.K., Richard, F., Ridky, J., Rinaudo, G., Ripp-Baudot, I., Rohne, O., Romero, A., Ronchese, P., Rosenberg, E.I., Rosinsky, P., Roudeau, P., Rovelli, T., Ruhlmann-Kleider, V., Ruiz, A., Saarikko, H., Sacquin, Y., Sadovsky, A., Sajot, G., Salt, J., Sampsonidis, D., Sannino, M., Savoy-Navarro, A., Schwemling, P., Schwering, B., Schwickerath, U., Scuri, F., Seager, P., Sedykh, Y., Segar, A.M., Seibert, N., Sekulin, R., Sette, G., Shellard, R.C., Siebel, M., Simard, L., Simonetto, F., Sisakian, A.N., Smadja, G., Smirnova, O., Smith, G.R., Solovianov, O., Sopczak, A., Sosnowski, R., Spassov, T., Spiriti, E., Squarcia, S., Stanescu, C., Stanitzki, M., Stevenson, K., Stocchi, A., Strauss, J., Strub, R., Stugu, B., Szczekowski, M., Szeptycka, M., Tabarelli, T., Taffard, A., Tegenfeldt, F., Terranova, F., Timmermans, J., Tinti, N., Tkatchev, L.G., Tobin, M., Todorova, S., Tome, B., Tonazzo, A., Tortora, L., Tortosa, Pablo, Transtromer, G., Treille, D., Tristram, G., Trochimczuk, M., Troncon, C., Turluer, M.L., Tyapkin, I.A., Tyapkin, P., Tzamarias, S., Ullaland, O., Uvarov, V., Valenti, G., Vallazza, E., Van Dam, P., Van Den Boeck, W., Van Doninck, W.K., Van Eldik, J., Van Lysebetten, A., Van Remortel, N., Van Vulpen, I., Vegni, G., Ventura, L., Venus, W., Verbeure, F., Verdier, P., Verlato, M., Vertogradov, L.S., Verzi, V., Vilanova, D., Vitale, L., Vlasov, E., Vodopyanov, A.S., Voulgaris, G., Vrba, V., Wahlen, H., Walck, C., Washbrook, A.J., Weiser, C., Wicke, D., Wickens, J.H., Wilkinson, G.R., Winter, M., Witek, M., Wolf, G., Yi, J., Yushchenko, O., Zalewska, A., Zalewski, P., Zavrtanik, D., Zevgolatakos, E., Zimin, N.I., Zintchenko, A., Zoller, P., Zumerle, G., Zupan, M., Institut de Physique Nucléaire de Lyon (IPNL), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de l'Accélérateur Linéaire (LAL), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), Institut de Recherches Subatomiques (IReS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Cancéropôle du Grand Est-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Physique Corpusculaire et Cosmologie - Collège de France (PCC), Collège de France (CdF)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Centre de Physique des Particules de Marseille (CPPM), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Aix Marseille Université (AMU), DELPHI, Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS), Collège de France (CdF (institution))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), and Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS)
Subjects: High Energy Physics::Phenomenology, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], High Energy Physics::Experiment, High Energy Physics - Experiment
Abstract: A new precise measurement of |V_{cb}| and of the branching ratio BR(\bar{B^0} -> D^{*+} \ell^- \bar{\nu_\ell}) has been performed using a sample of about 5000 semileptonic decays \bar{B^0} -> D^{*+} \ell^- \bar{\nu_\ell}, selected by the DELPHI detector at LEP I by tagging the soft pion from D^{*+} -> D^0 \pi^+. The results are: V_{cb}=(39.0 +/- 1.5 (stat.) ^{+2.5}_{-2.6} (syst. exp.) +/- 1.3 (syst. th.)) x 10^{-3} BR(\bar{B^0} -> D^{*+} \ell^- \bar{\nu_\ell})=(4.70 +/- 0.13 (stat.) ^{+0.36}_{-0.31} (syst. exp.))% The analytic dependences of the differential cross-section and of the Isgur Wise form factor as functions of the variable w = v_{B^0}.v_{D^*} have also been obtained by unfolding the experimental resolution., Comment: 26 pages, 5 figures, Accepted by Phys. Lett. B; typo corrected, reference updated
Published: 2001
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25. Search for sleptons in ${\mathrm e}^+{\mathrm e}^- $ collisions at $\sqrt{s} = $183 to 189 GeV

Author: Abreu, P., Blom, H.M., Boudinov, E., Kluit, P.M., Mulders, M.P., Reid, D.W., Timmermans, J.J.M., van Dam, P.H.A., van Eldik, J.E., van Vulpen, I.B., and Delphi (IHEF, IoP, FNWI)
Published: 2001

26. Measurement of the semileptonic b branching fractions and average b mixing parameter in Z decays

Author: 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. Asman, 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. Cossutti, F. Costa, M. Crawley, H.B. Crennell, D. Crosetti, G. Cuevas Maestro, J. Czellar, S. D'Hondt, J. Dalmau, J. Davenport, M. Da Silva, W. Della Ricca, G. Delpierre, P. Demaria, N. De Angelis, A. De Boer, W. De Clercq, C. De Lotto, B. De Min, A. De Paula, L. Dijkstra, H. Di Ciaccio, L. Dolbeau, J. Doroba, K. Dracos, M. Drees, J. Dris, M. Eigen, G. Ekelof, T. Ellert, M. Elsing, M. Engel, J.-P. Espirito Santo, M. Fanourakis, G. Fassouliotis, D. Feindt, M. Fernandez, J. Ferrer, A. Ferrer-Ribas, E. Ferro, F. Firestone, A. Flagmeyer, U. Foeth, H. Fokitis, E. Fontanelli, F. Franek, B. Frodesen, A.G. Fruhwirth, R. Fulda-Quenzer, F. Fuster, J. Galloni, A. Gamba, D. Gamblin, S. Gandelman, M. Garcia, C. Gaspar, C. Gaspar, M. Gasparini, U. Gavillet, Ph. Gazis, E.N. Gele, D. Geralis, T. Gerdyukov, L. Ghodbane, N. Gil, I. Glege, F. Gokieli, R. Golob, B. Gomez-Ceballos, G. Goncalves, P. Gonzalez Caballero, I. Gopal, G. Gorn, L. Gouz, Y. Gracco, V. Grahl, J. Graziani, E. Gris, P. Grosdidier, G. Grzelak, K. Guy, J. Haag, C. Hahn, F. Hahn, S. Haider, S. Hallgren, A. Hamacher, K. Hansen, J. Harris, F.J. Hauler, F. Hedberg, V. Heising, S. Hernandez, J.J. Herquet, P. Herr, H. Higon, E. Holmgren, S.-O. Holt, P.J. Hoorelbeke, S. Houlden, M. Hrubec, J. Huber, M. Hughes, G.J. Hultqvist, K. Jackson, J.N. Jacobsson, R. Jalocha, P. Janik, R. Jarlskog, Ch. Jarlskog, G. Jarry, P. Jean-Marie, B. Jeans, D. Johansson, E.K. Jonsson, P. Joram, C. Juillot, P. Jungermann, L. Kapusta, F. Karafasoulis, K. Katsanevas, S. Katsoufis, E.C. Keranen, R. Kernel, G. Kersevan, B.P. Khokhlov, Yu. Khomenko, B.A. Khovanski, N.N. Kiiskinen, A. King, B. Kinvig, A. Kjaer, N.J. Klapp, O. Kluit, P. Kokkinias, P. Kostioukhine, V. Kourkoumelis, C. Kouznetsov, O. Krammer, M. Kriznic, E. Krumstein, Z. Kubinec, P. Kurowska, J. Kurvinen, K. Lamsa, J.W. Lane, D.W. Laugier, J.-P. Lauhakangas, R. Leder, G. Ledroit, F. Leinonen, L. Leisos, A. Leitner, R. Lenzen, G. Lepeltier, V. Lesiak, T. Lethuillier, M. Libby, J. Liebig, W. Liko, D. Lipniacka, A. Lippi, I. Loerstad, B. Loken, J.G. Lopes, J.H. Lopez, J.M. Lopez-Fernandez, R. Loukas, D. Lutz, P. Lyons, L. MacNaughton, J. Mahon, J.R. Maio, A. Malek, A. Maltezos, S. Malychev, V. Mandl, F. Marco, J. Marco, R. Marechal, B. Margoni, M. Marin, J.-C. Mariotti, C. Markou, A. Martinez-Rivero, C. Marti i Garcia, S. Masik, J. Mastroyiannopoulos, N. Matorras, F. Matteuzzi, C. Matthiae, G. Mazzucato, F. Mazzucato, M. Mc Cubbin, M. Mc Kay, R. Mc Nulty, R. Mc Pherson, G. Merle, E. Meroni, C. Meyer, W.T. Migliore, E. Mirabito, L. Mitaroff, W.A. Mjoernmark, U. Moa, T. Moch, M. Moeller, R. Moenig, K. Monge, M.R. Moraes, D. Morettini, P. Morton, G. Mueller, U. Muenich, K. Mulders, M. Mulet-Marquis, C. Mundim, L.M. Muresan, R. Murray, W.J. Muryn, B. Myatt, G. Myklebust, T. Naraghi, F. Nassiakou, M. Navarria, F.L. Nawrocki, K. Negri, P. Neufeld, N. Nicolaidou, R. Nielsen, B.S. Niezurawski, P. Nikolenko, M. Nomokonov, V. Nygren, A. Obraztsov, V. Olshevski, A.G. Onofre, A. Orava, R. Orazi, G. Osterberg, K. Ouraou, A. Oyanguren, A. Paganoni, M. Paiano, S. Pain, R. Paiva, R. Palacios, J. Palka, H. Papadopoulou, T.D. Pape, L. Parkes, C. Parodi, F. Parzefall, U. Passeri, A. Passon, O. Pavel, T. Pegoraro, M. Peralta, L. Pernicka, M. Perrotta, A. Petridou, C. Petrolini, A. Phillips, H.T. Pierre, F. Pimenta, M. Piotto, E. Podobnik, T. Poireau, V. Pol, M.E. Polok, G. Poropat, P. Pozdniakov, V. Privitera, P. Pukhaeva, N. Pullia, A. Radojicic, D. Ragazzi, S. Rahmani, H. Rames, J. Read, A.L. Rebecchi, P. Redaelli, N.G. Regler, M. Rehn, J. Reid, D. Reinertsen, P. Reinhardt, R. Renton, P.B. Resvanis, L.K. Richard, F. Ridky, J. Rinaudo, G. Ripp-Baudot, I. Romero, A. Ronchese, P. Rosenberg, E.I. Rosinsky, P. Roudeau, P. Rovelli, T. Ruhlmann-Kleider, V. Ruiz, A. Saarikko, H. Sacquin, Y. Sadovsky, A. Sajot, G. Salt, J. Sampsonidis, D. Sannino, M. Savoy-Navarro, A. Schwemling, P. Schwering, B. Schwickerath, U. Scuri, F. Sedykh, Y. Segar, A.M. Seibert, N. Sekulin, R. Sette, G. Shellard, R.C. Siebel, M. Simard, L. Simonetto, F. Sisakian, A.N. Smadja, G. Smirnov, N. Smirnova, O. Smith, G.R. Sokolov, A. Sopczak, A. Sosnowski, R. Spassov, T. Spiriti, E. Squarcia, S. Stanescu, C. Stanitzki, M. Stevenson, K. Stocchi, A. Strauss, J. Strub, R. Stugu, B. Szczekowski, M. Szeptycka, M. Tabarelli, T. Taffard, A. Tchikilev, O. Tegenfeldt, F. Terranova, F. Timmermans, J. Tinti, N. Tkatchev, L.G. Tobin, M. Todorova, S. Tome, B. Tonazzo, A. Tortora, L. Tortosa, P. Transtromer, G. Treille, D. Tristram, G. Trochimczuk, M. Troncon, C. Turluer, M.-L. Tyapkin, I.A. Tyapkin, P. Tzamarias, S. Ullaland, O. Uvarov, V. Valenti, G. Vallazza, E. Van Dam, P. Van den Boeck, W. Van Doninck, W.K. Van Eldik, J. Van Lysebetten, A. van Remortel, N. Van Vulpen, I. Vegni, G. Ventura, L. Venus, W. Verbeure, F. Verdier, P. Verlato, M. Vertogradov, L.S. Verzi, V. Vilanova, D. Vitale, L. Vlasov, E. Vodopyanov, A.S. Voulgaris, G. Vrba, V. Wahlen, H. Washbrook, A.J. Weiser, C. Wicke, D. Wickens, J.H. Wilkinson, G.R. Winter, M. Witek, M. Wolf, G. Yi, J. Yushchenko, O. Zalewska, A. Zalewski, P. Zavrtanik, D. Zevgolatakos, E. Zimin, N.I. Zintchenko, A. Zoller, Ph. Zumerle, G. Zupan, M.
Subjects: High Energy Physics::Phenomenology, High Energy Physics::Experiment
Abstract: The semileptonic branching fractions for primary and cascade b decays BR(b → l-), BR(b → c → l+) and BR(b → c̄ → l- were measured in hadronic Z decays collected by the DELPHI experiment at LEP. The sample was enriched in b decays using the lifetime information and various techniques were used to separate leptons from direct or cascade b decays. By fitting the momentum spectra of di-leptons in opposite jets, the average b mixing parameter x̄ was also extracted. The following results have been obtained: (equation presented).
Published: 2001

27. Search for Spontaneous R-parity violation at $\sqrt{s}$ = 183 GeV and 189 GeV

Author: Abreu, P., Adam, W., Adye, T., Adzic, P., Azhinenko, 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., Asman, B., Augustin, J.-E., Augustinus, A., Baillon, P., Bambade, P., Barao, F., Barbiellini, Guido, Barbier, R., Bardin, D.Yu., Barker, G., Baroncelli, A., Battaglia, M., Baubillier, M., Becks, K.H., Begalli, M., Behrmann, A., Beilliere, P., Belokopytov, Yu., Benekos, N.C., Benvenuti, A.C., Berat, C., Berggren, M., Bertrand, D., Besancon, M., Bigi, M., Bilenkii, M.S., Bizouard, M.A., Bloch, D., Blom, H.M., Bonesini, M., Boonekamp, M., Booth, P.S.L., Borgland, A.W., 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., Chabaud, V., Charpentier, P., Checchia, P., Chelkov, G.A., Chierici, R., Shlyapnikov, P., Chochula, P., Chorowicz, V., Chudoba, J., Cieslik, K., Collins, P., Contri, R., Cortina, E., Cosme, G., Cossutti, F., Crawley, H.B., Crennell, D., Crosetti, G., Cuevas Maestro, J., Czellar, S., Davenport, M., Da Silva, W., Della Ricca, G., Delpierre, P., Demaria, N., De Angelis, A., De Boer, W., De Clercq, C., De Lotto, B., De Min, A., De Paula, L., Dijkstra, H., Di Ciaccio, L., Dolbeau, J., Doroba, K., Dracos, M., Drees, J., Dris, M., Duperrin, A., Durand, J.D., Eigen, G., Ekelof, T., Ekspong, G., Ellert, M., Elsing, M., Engel, J.P., Espirito Santo, M., Fanourakis, G., Fassouliotis, D., Fayot, J., Feindt, M., Fenyuk, A., Ferrer, A., Ferrer-Ribas, E., Ferro, F., Fichet, S., Firestone, A., Flagmeyer, U., Foeth, H., Fokitis, E., Fontanelli, F., Franek, B., Frodesen, A.G., Fruhwirth, R., Fulda-Quenzer, F., Fuster, J., Galloni, A., Gamba, D., Gamblin, S., Gandelman, M., Garcia, C., Gaspar, C., Gaspar, M., Gasparini, U., Gavillet, P., Gazis, E.N., Gele, D., Ghodbane, N., Gil, I., Glege, F., Gokieli, R., Golob, B., Gomez-Ceballos, G., Goncalves, P., Gonzalez Caballero, I., Gopal, G., Gorn, L., Gouz, Yu., Gracco, V., Grahl, J., Graziani, E., Gris, P., Grosdidier, G., Grzelak, K., Guy, J., Haag, C., Hahn, F., Hahn, S., Haider, S., Hallgren, A., Hamacher, K., Hansen, J., Harris, F.J., Hedberg, V., Heising, S., Hernandez, J.J., Herquet, P., Herr, H., Hessing, T.L., Heuser, J.M., Higon, E., Holmgren, S.O., Holt, P.J., Hoorelbeke, S., Houlden, M., Hrubec, J., Huber, M., Huet, K., Hughes, G.J., Hultqvist, K., Jackson, J.N., Jacobsson, R., Jalocha, P., Janik, R., Jarlskog, C., Jarlskog, G., Jarry, P., Jean-Marie, B., Jeans, D., Johansson, E.K., Jonsson, P., Joram, C., Juillot, P., Jungermann, L., Kapusta, F., Karafasoulis, K., Katsanevas, S., Katsoufis, E.C., Keranen, R., Kernel, G., Kersevan, B.P., Khomenko, B.A., Khovansky, N.N., Kiiskinen, A., King, B., Kinvig, A., Kjaer, N.J., Klapp, O., Klein, H., Kluit, P., Kokkinias, P., Kostyukhin, V., Kourkoumelis, C., Kuznetsov, O., Krammer, M., Kriznic, E., Krumshtein, Z., Kubinec, P., Kurowska, J., Kurvinen, K., Lamsa, J.W., Lane, D.W., Lapin, V., Laugier, J.P., Lauhakangas, R., Leder, G., Ledroit, F., Lefebure, V., Leinonen, L., Leisos, A., Leitner, R., Lemonne, J., Lenzen, G., Lepeltier, V., Lesiak, T., Lethuillier, M., Libby, J., Liebig, W., Liko, D., Lipniacka, A., Lippi, I., Lorstad, B., Loken, J.G., Lopes, J.H., Lopez, J.M., Lopez-Fernandez, R., Loukas, D., Lutz, P., Lyons, L., MacNaughton, J., Mahon, J.R., Maio, A., Malek, A., Malmgren, T.G.M., Maltezos, S., Malychev, V., Mandl, F., Marco, J., Marco, R., Marechal, B., Margoni, M., Marin, J.C., Mariotti, C., Markou, A., Martinez-Rivero, C., Martinez-Vidal, F., Marti, I Garcia S., Masik, J., Mastroyiannopoulos, N., Matorras, F., Matteuzzi, C., Matthiae, G., Mazzucato, F., Mazzucato, M., McCubbin, M., McKay, R., McNulty, R., McPherson, G., Meroni, C., Merle, E., Meyer, W.T., Myagkov, A., Migliore, E., Mirabito, L., Mitaroff, W.A., Mjornmark, U., Moa, T., Moch, M., Moller, R., Monig, K., Monge, M.R., Moraes, D., Moreau, X., Morettini, P., Morton, G., Muller, U., Munich, K., Mulders, M., Muresan, R., Murray, W.J., Muryn, B., Myatt, G., Myklebust, T., Nassiakou, M., Navarria, F.L., Navas, S., Nawrocki, K., Negri, P., Neufeld, N., Nicolaidou, R., Nielsen, B.S., Niezurawski, P., Nikolenko, M., Nomokonov, V., Nygren, A., Obraztsov, V., Olshevsky, A.G., Onofre, A., Orava, R., Orazi, G., Osterberg, K., Ouraou, A., Paganoni, M., Paiano, S., Pain, R., Paiva, R., Palacios, J., Palka, H., Papadopoulou, T.D., Papageorgiou, K., Pape, L., Parkes, C., Parodi, F., Parzefall, U., Passeri, A., Passon, O., Pavel, T., Pegoraro, M., Peralta, L., Pernicka, M., Perrotta, A., Petridou, C., Petrolini, A., Phillips, H.T., Pierre, F., Pimenta, M., Piotto, E., Podobnik, T., Pol, M.E., Polok, G., Poropat, P., Pozdnyakov, V., Privitera, P., Pukhaeva, N., Pullia, A., Radojicic, D., Ragazzi, S., Rahmani, H., Rames, J., Ratoff, P.N., Read, A.L., Rebecchi, P., Redaelli, N.G., Regler, M., Rehn, J., Reid, D., Reinhardt, R., Renton, P.B., Resvanis, L.K., Richard, F., Ridky, J., Rinaudo, G., Ripp-Baudot, I., Rohne, O., Romero, A., Ronchese, P., Rosenberg, E.I., Rosinsky, P., Roudeau, P., Rovelli, T., Royon, C., Ruhlmann-Kleider, V., Ruiz, A., Saarikko, H., Sacquin, Y., Sadovsky, A., Sajot, G., Salt, J., Sampsonidis, D., Sannino, M., Schwemling, P., Schwering, B., Schwickerath, U., Scuri, F., Seager, P., Sedykh, Yu., Segar, A.M., Seibert, N., Sekulin, R., Shellard, R.C., Siebel, M., Simard, L., Simonetto, F., Sisakian, A.N., Smadja, G., Smirnov, N., Smirnova, O., Smith, G.R., Sopczak, A., Sosnowski, R., Spassoff, T., Spiriti, E., Squarcia, S., Stanescu, C., Stanic, S., Stanitzki, M., Stevenson, K., Stocchi, A., Strauss, J., Strub, R., Stugu, B., Szczekowski, M., Szeptycka, M., Tabarelli, T., Taffard, A., Chikilev, O., Tegenfeldt, F., Terranova, F., Thomas, J., Timmermans, J., Tinti, N., Tkachev, L.G., Tobin, M., Todorova, S., Tomaradze, A., Tome, B., Tonazzo, A., Tortora, L., Tortosa, Pablo, Transtromer, G., Treille, D., Tristram, G., Trochimczuk, M., Troncon, C., Turluer, M.L., Tyapkin, I.A., Tzamarias, S., Ullaland, O., Uvarov, V., Valenti, G., Vallazza, E., Vander Velde, C., Van Dam, P., Van Den Boeck, W., Van Doninck, W.K., Van Eldik, J., Van Lysebetten, A., Van Remortel, N., Van Vulpen, I., Vegni, G., Ventura, L., Venus, W., Verbeure, F., Verdier, P., Verlato, M., Vertogradov, L.S., Verzi, V., Vilanova, D., Vitale, L., Vlasov, E., Vodopyanov, A.S., Voulgaris, G., Vrba, V., Wahlen, H., Walck, C., Washbrook, A.J., Weiser, C., Wicke, D., Wickens, J.H., Wilkinson, G.R., Winter, M., Witek, M., Wolf, G., Yi, J., Yushchenko, O., Zalewska, A., Zalewski, P., Zavrtanik, D., Zevgolatakos, E., Zimin, N.I., Zinchenko, A., Zoller, P., Zucchelli, G.C., Zumerle, G., Institut de Physique Nucléaire de Lyon (IPNL), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC), Laboratoire de l'Accélérateur Linéaire (LAL), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Institut de Recherches Subatomiques (IReS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Cancéropôle du Grand Est-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Physique Corpusculaire et Cosmologie - Collège de France (PCC), Collège de France (CdF (institution))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Centre de Physique des Particules de Marseille (CPPM), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), DELPHI, Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Collège de France (CdF)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Aix Marseille Université (AMU), and Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)
Subjects: High Energy Physics - Experiment (hep-ex), High Energy Physics::Phenomenology, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], FOS: Physical sciences, High Energy Physics::Experiment, Nuclear Experiment, Particle Physics - Experiment, High Energy Physics - Experiment
Abstract: Searches for spontaneous R-parity violating signals at sqrt(s) = 183 GeV and sqrt(s) = 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., 18 pages, 6 figures, Accepted by Physics Letters B
Published: 2001
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28. Search for spontaneous R-parity violation at √s = 183 GeV and 189 GeV

Author: Abreu, P. Adam, W. Adye, T. Adzic, P. Albrecht, Z. Alderweireld, T. Alekseev, G.D. Alemany, R. Allmendinger, T. Allport, P.P. Almehed, S. Amaldi, U. Amapane, N. Amato, S. Anashkin, E. Anassontzis, E.G. Andersson, P. Andreazza, A. Andringa, S. Anjos, N. 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. Belokopytov, Yu. Belous, K. Benekos, N.C. Benvenuti, A.C. Berat, C. Berggren, M. Berntzon, L. Bertrand, D. Besancon, M. Besson, N. Bilenky, M.S. Bloch, D. Blom, H.M. Bol, L. Bonesini, M. Boonekamp, M. Booth, P.S.L. Borisov, G. Bosio, C. Botner, O. Boudinov, E. Bouquet, B. Bowcock, T.J.V. Boyko, I. Bozovic, I. Bozzo, M. Bracko, M. Branchini, P. Brenner, R.A. Brodet, E. Bruckman, P. Brunet, J.-M. Bugge, L. Buschmann, P. Caccia, M. Calvi, M. Camporesi, T. Canale, V. Carena, F. Carroll, L. Caso, C. Castillo Gimenez, M.V. Cattai, A. Cavallo, F.R. Chapkin, M. 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.
Subjects: High Energy Physics::Phenomenology, High Energy Physics::Experiment
Abstract: Searches for spontaneous R-parity-violating signals at √s = 183 GeV and √s = 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. © 2001 Elsevier Science B.V.
Published: 2001

29. A measurement of the Tau topological branching ratios

Author: Abreu, P. Adam, W. Adye, T. Adzic, P. Albrecht, Z. Alderweireld, T. Alekseev, G.D. Alemany, R. Allmendinger, T. Allport, P.P. Almehed, S. Amaldi, U. Amapane, N. Amato, S. Anashkin, E. Anassontzis, E.G. Andersson, P. Andreazza, A. Andringa, S. Anjos, N. 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. Bellunato, T. Belokopytov, Y. Belous, K. Benekos, N.C. Benvenuti, A.C. Berat, C. Berggren, M. Berntzon, L. Bertrand, D. Besancon, M. Besson, N. Bilenky, M.S. Bloch, D. Blom, H.M. Bol, J. Bonesini, M. Boonekamp, M. Booth, P.S.L. Borisov, G. Bosio, C. Botner, O. Boudinov, E. Bouquet, B. Bowcock, T.J.V. Boyko, I. Bozovic, I. Bozzo, M. Bracko, M. Branchini, P. Brenner, R.A. Brodet, E. Bruckman, P. Brunet, J.-M. Bugge, L. Buschmann, P. Caccia, M. Calvi, M. Camporesi, T. Canale, V. Carena, F. Carroll, L. Caso, C. Cattai, A. Cavallo, F.R. Chapkin, M. Charpentier, Ph. Checchia, P. Chelkov, G.A. Chierici, R. Chliapnikov, P. Chochula, P. Chorowicz, V. Chudoba, J. Chung, S.H. Cieslik, K. Collins, P. Contri, R. Cosme, G. Cossutti, F. Costa, M. Crawley, H.B. Crennell, D. Croix, J. Cuevas Maestro, J. Czellar, S. D'Hondt, J. Dalmau, J. Davenport, M. Da Silva, W. Della Ricca, G. Delpierre, P. Demaria, N. De Angelis, A. De Boer, W. De Clercq, C. De Lotto, B. De Min, A. De Paula, L. Dijkstra, H. Di Ciaccio, L. Doroba, K. Dracos, M. Drees, J. Dris, M. Eigen, G. Ekelof, T. Ellert, M. Elsing, M. Engel, J.-P. Espirito Santo, M. Fanourakis, G. Fassouliotis, D. Feindt, M. Fernandez, J. Ferrer, A. Ferrer-Ribas, E. Ferro, F. Firestone, A. Flagmeyer, U. Foeth, H. Fokitis, E. Fontanelli, F. Franek, B. Frodesen, A.G. Fruhwirth, R. Fulda-Quenzer, F. Fuster, J. Gamba, D. Gamblin, S. Gandelman, M. Garcia, C. Gaspar, C. Gaspar, M. Gasparini, U. Gavillet, Ph. Gazis, E.N. Gele, D. Geralis, T. Ghodbane, N. Glege, F. Gokieli, R. Golob, B. Gomez-Ceballos, G. Goncalves, P. Gonzalez Caballero, I. Gopal, G. Gorn, L. Gouz, Y. Gracco, V. Grahl, J. Graziani, E. Grosdidier, G. Grzelak, K. Guy, J. Haag, C. Hahn, F. Hahn, S. Haider, S. Hajduk, Z. Hallgren, A. Hamacher, K. Hamilton, K. Hansen, J. Harris, F.J. Haug, S. Hauler, F. Hedberg, V. Heising, S. Herquet, P. Herr, H. Hertz, O. Higon, E. Holmgren, S.-O. Holt, P.J. Hoorelbeke, S. Houlden, M. Hrubec, J. Hughes, G.J. Hultqvist, K. Jackson, J.N. Jacobsson, R. Jarlskog, Ch. Jarlskog, G. Jarry, P. Jean-Marie, B. Jeans, D. Johansson, E.K. Jonsson, P. Joram, C. Juillot, P. Jungermann, L. Kapusta, F. Karafasoulis, K. Katsanevas, S. Katsoufis, E.C. Keranen, R. Kernel, G. Kersevan, B.P. Khomenko, B.A. Khovanski, N.N. Kiiskinen, A. King, B. Kinvig, A. Kjaer, N.J. Klapp, O. Kluit, P. Kokkinias, P. Kostioukhine, V. Kourkoumelis, C. Kouznetsov, O. Krammer, M. Kriznic, E. Krumstein, Z. Kubinec, P. Kucewicz, W. Kucharczyk, M. Kurowska, J. Lamsa, J.W. Laugier, J.-P. Leder, G. Ledroit, F. Leinonen, L. Leisos, A. Leitner, R. Lemonne, J. Lenzen, G. Lepeltier, V. Lethuillier, M. Libby, J. Liebig, W. Liko, D. Lipniacka, A. Lippi, I. Loken, J.G. Lopes, J.H. Lopez, J.M. Lopez-Fernandez, R. Loukas, D. Lutz, P. Lyons, L. MacNaughton, J. Mahon, J.R. Maio, A. Malek, A. Maltezos, S. Malychev, V. Mandl, F. Marco, J. Marco, R. Marechal, B. Margoni, M. Marin, J.-C. Mariotti, C. Markou, A. Martinez-Rivero, C. Marti i Garcia, S. Masik, J. Mastroyiannopoulos, N. Matorras, F. Matteuzzi, C. Matthiae, G. Mazzucato, F. Mazzucato, M. Mc Cubbin, M. Mc Kay, R. Mc Nulty, R. Merle, E. Meroni, C. Meyer, W.T. Miagkov, A. Migliore, E. Mirabito, L. Mitaroff, W.A. Mjoernmark, U. Moa, T. Moch, M. Moenig, K. Monge, M.R. Montenegro, J. Moraes, D. Morettini, P. Morton, G. Mueller, U. Muenich, K. Mulders, M. Mundim, L.M. Murray, W.J. Myatt, G. Myklebust, T. Nassiakou, M. Navarria, F.L. Nawrocki, K. Negri, P. Nemecek, S. Neufeld, N. Nicolaidou, R. Niezurawski, P. Nikolenko, M. Nomokonov, V. Nygren, A. Oblakowska-Mucha, A. Obraztsov, V. Olshevski, A.G. Onofre, A. Orava, R. Osterberg, K. Ouraou, A. Oyanguren, A. Paganoni, M. Paiano, S. Pain, R. Paiva, R. Palacios, J. Palka, H. Papadopoulou, T.D. Pape, L. Parkes, C. Parodi, F. Parzefall, U. Passeri, A. Passon, O. Peralta, L. Perepelitsa, V. Pernicka, M. Perrotta, A. Petridou, C. Petrolini, A. Phillips, H.T. Pierre, F. Pimenta, M. Piotto, E. Podobnik, T. Poireau, V. Pol, M.E. Polok, G. Poropat, P. Pozdniakov, V. Privitera, P. Pukhaeva, N. Pullia, A. Radojicic, D. Ragazzi, S. Rahmani, H. Ratoff, P.N. Read, A.L. Rebecchi, P. Redaelli, N.G. Regler, M. Rehn, J. Reid, D. Reinhardt, R. Renton, P.B. Resvanis, L.K. Richard, F. Ridky, J. Rinaudo, G. Ripp-Baudot, I. Romero, A. Ronchese, P. Rosenberg, E.I. Rosinsky, P. Roudeau, P. Rovelli, T. Ruhlmann-Kleider, V. Ruiz, A. Saarikko, H. Sacquin, Y. Sadovsky, A. Sajot, G. Salmi, L. Salt, J. Sampsonidis, D. Sannino, M. Savoy-Navarro, A. Schwanda, C. Schwemling, Ph. Schwering, B. Schwickerath, U. Scuri, F. Seager, P. Sedykh, Y. Segar, A.M. Sekulin, R. Sette, G. Shellard, R.C. Siebel, M. Simard, L. Simonetto, F. Sisakian, A.N. Smadja, G. Smirnov, N. Smirnova, O. Smith, G.R. Sokolov, A. Solovianov, O. Sopczak, A. Sosnowski, R. Spassov, T. Spiriti, E. Squarcia, S. Stanescu, C. Stanitzki, M. Stocchi, A. Strauss, J. Strub, R. Stugu, B. Szczekowski, M. Szeptycka, M. Szumlak, T. Tabarelli, T. Taffard, A. Tegenfeldt, F. Terranova, F. Timmermans, J. Tinti, N. Tkatchev, L.G. Tobin, M. Todorova, S. Tome, B. Tortora, L. Tortosa, P. Treille, D. Tristram, G. Trochimczuk, M. Troncon, C. Turluer, M.-L. Tyapkin, I.A. Tyapkin, P. Tzamarias, S. Ullaland, O. Uvarov, V. Valenti, G. Vallazza, E. Vander Velde, C. Van Dam, P. Van den Boeck, W. Van Doninck, W.K. Van Eldik, J. Van Lysebetten, A. van Remortel, N. Van Vulpen, I. Vegni, G. Ventura, L. Venus, W. Verbeure, F. Verdier, P. Verlato, M. Vertogradov, L.S. Verzi, V. Vilanova, D. Vitale, L. Vlasov, E. Vodopyanov, A.S. Voulgaris, G. Vrba, V. Wahlen, H. Washbrook, A.J. Weiser, C. Wicke, D. Wickens, J.H. Wilkinson, G.R. Winter, M. Wolf, G. Yi, J. Yushchenko, O. Zalewska, A. Zalewski, P. Zavrtanik, D. Zevgolatakos, E. Zimin, N.I. Zintchenko, A. Zoller, Ph. Zumerle, G. Zupan, M.
Abstract: Using data collected in the DELPHI detector at LEP-1, measurements of the inclusive τ branching ratios for decay modes containing one, three, or five charged particles have been performed, giving the following results: B1 ≡ B(τ- → (particle)-≥0π0≥0K0 vτ(v̄)) = (85.316 ± 0.093 ± 0.049)%; B3 ≡ B(τ- → 2h-h+≥0π0≥0K0vτ) = (14.569 ± 0.093 ± 0.048)%; B5 ≡ B(τ- → 3h-2h+≥0π0≥0K0vτ) = (0.115 ± 0.013 ± 0.006)%, where h is either a charged π or K meson. The first quoted uncertainties are statistical and the second systematic.
Published: 2001

30. Measurement of the mass and width of the W boson in e+e- collisions at √s = 189 GeV

Author: Abreu, P. Adam, W. Adye, T. Adzic, P. Albrecht, Z. Alderweireld, T. Alekseev, G.D. Alemany, R. Allmendinger, T. Allport, P.P. Almehed, S. Amaldi, U. Amapane, N. Amato, S. Anashkin, E. Anassontzis, E.G. Andersson, P. Andreazza, A. Andringa, S. Anjos, N. 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. Bellunato, T.F. Belokopytov, Yu. Belous, K. Benekos, N.C. Benvenuti, A.C. Berat, C. Berggren, M. Berntzon, L. Bertrand, D. Besancon, M. Besson, N. Bilenky, M.S. Bloch, D. Blom, H.M. Bol, L. Bonesini, M. Boonekamp, M. Booth, P.S.L. Borisov, G. Bosio, C. Botner, O. Boudinov, E. Bouquet, B. Bowcock, T.J.V. Boyko, I. Bozovic, I. Bracko, M. Branchini, P. Brenner, R.A. Bruckman, P. Brunet, J.-M. Bugge, L. Buschmann, P. Caccia, M. Calvi, M. Camporesi, T. Canale, V. Carena, F. Carroll, L. Caso, C. Castillo Gimenez, M.V. Cattai, A. Cavallo, F.R. Chapkin, M. 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. Cossutti, F. Costa, M. Crawley, H.B. Crennell, D. Croix, J. Crosetti, G. Cuevas Maestro, J. Czellar, S. D'Hondt, J. Dalmau, J. Davenport, M. Da Silva, W. Della Ricca, G. Delpierre, P. Demaria, N. DeAngelis, A. De Boer, W. De Clercq, C. De Lotto, B. De Min, A. De Paula, L. Dijkstra, H. Di Ciaccio, L. Doroba, K. Dracos, M. Drees, J. Dris, M. Eigen, G. Ekelof, T. Ellert, M. Elsing, M. Engel, J.P. Espirito Santo, M. Fanourakis, G. Fassouliotis, D. Feindt, M. Fernandez, J. Ferrer, A. Ferrer-Ribas, E. Ferro, F. Firestone, A. Flagmeyer, U. Foeth, H. Fokitis, E. Fontanelli, F. Franek, B. Frodesen, A.G. Fruhwirth, R. Fulda-Quenzer, F. Fuster, J. Galloni, A. Gamba, D. Gamblin, S. Gandelman, M. Garcia, C. Gaspar, C. Gaspar, M. Gasparini, U. Gavillet, Ph. Gazis, E.N. Gele, D. Geralis, T. Ghodbane, N. Gil, I. Glege, F. Gokieli, R. Golob, B. Gomez-Ceballos, G. Goncalves, P. Gonzalez Caballero, I. Gopal, G. Gorn, L. Gouz, Yu. Gracco, V. Grahl, J. Graziani, E. Grosdidier, G. Grzelak, K. Guy, J. Haag, C. Hahn, F. Hahn, S. Haider, S. Hallgren, A. Hamacher, K. Hansen, J. Harris, F.J. Haug, S. Hauler, F. Hedberg, V. Heising, S. Hernandez, J.J. Herquet, P. Herr, H. Hertz, O. Higon, E. Holmgren, S.-O. Holt, P.J. Hoorelbeke, S. Houlden, M. Hrubec, J. Hughes, G.J. Hultqvist, K. Jackson, J.N. Jacobsson, R. Jalocha, P. Jarlskog, Ch. Jarlskog, G. Jarry, P. Jean-Marie, B. Jeans, D. Johansson, E.K. Jonsson, P. Joram, C. Juillot, P. Jungermann, L. Kapusta, F. Karafasoulis, K. Katsanevas, S. Katsoufis, E.C. Keranen, R. Kernel, G. Kersevan, B.P. Khokhlov, Yu. Khomenko, B.A. Khovanski, N.N. Kiiskinen, A. King, B. Kinvig, A. Kjaer, N.J. Klapp, O. Kluit, P. Kokkinias, P. Kostioukhine, V. Kourkoumelis, C. Kouznetsov, O. Krammer, M. Kriznic, E. Krumstein, Z. Kubinec, P. Kucharczyk, M. Kurowska, J. Lamsa, J.W. Laugier, J.-P. Leder, G. Ledroit, F. Leinonen, L. Leisos, A. Leitner, R. Lenzen, G. Lepeltier, V. Lesiak, T. Lethuillier, M. Libby, J. Liebig, W. Liko, D. Lipniacka, A. Lippi, I. Loken, J.G. Lopes, J.H. Lopez, J.M. Lopez-Fernandez, R. Loukas, D. Lutz, P. Lyons, L. MacNaughton, J. Mahon, J.R. Maio, A. Malek, A. Maltezos, S. Malychev, V. Mandl, F. Marco, J. Marco, R. Marechal, B. Margoni, M. Marin, J.-C. Mariotti, C. Markou, A. Martinez-Rivero, C. Martii Garcia, S. Masik, J. Mastroyiannopoulos, N. Matorras, F. Matteuzzi, C. Matthiae, G. Mazzucato, F. Mazzucato, M. Mc Cubbin, M. Mc Kay, R. Mc Nulty, R. Mc Pherson, G. Merle, E. Meroni, C. Meyer, W.T. Migliore, E. Mirabito, L. Mitaroff, W.A. Mjoernmark, U. Moa, T. Moch, M. Moenig, K. Monge, M.R. Montenegro, J. Moraes, D. Morettini, P. Morton, G. Mueller, U. Muenich, K. Mulders, M. Mundim, L.M. Murray, W.J. Muryn, B. Myatt, G. Myklebust, T. Nassiakou, M. Navarria, F.L. Nawrocki, K. Negri, P. Nemecek, S. Neufeld, N. Nicolaidou, R. Niezurawski, P. Nikolenko, M. Nomokonov, V. Nygren, A. Obraztsov, V. Olshevski, A.G. Onofre, A. Orava, R. Osterberg, K. Ouraou, A. Oyanguren, A. Paganoni, M. Paiano, S. Pain, R. Paiva, R. Palacios, J. Palka, H. Papadopoulou, Th.D. Pape, L. Parkes, C. Parodi, F. Parzefall, U. Passeri, A. Passon, O. Peralta, L. Perepelitsa, V. Pernicka, M. Perrott, A. Petridou, C. Petrolini, A. Phillips, H.T. Pierre, F. Piment, M. Piotto, E. Podobnik, T. Poireau, V. Pol, M.E. Polok, G. Poropat, P. Pozdniakov, V. Privitera, P. Pukhaeva, N. Pullia, A. Radojicic, D. Ragazzi, S. Rahmani, H. Read, A.L. Rebecchi, P. Redaelli, N.G. Regler, M. Rehn, J. Reid, D. Reinhardt, R. Renton, P.B. Resvanis, L.K. Richard, F. Ridky, J. Rinaudo, G. Ripp-Baudot, I. Romero, A. Ronchese, P. Rosenberg, E.I. Rosinsky, P. Roudeau, P. Rovelli, T. Ruhlmann-Kleider, V. Ruiz, A. Saarikko, H. Sacquin, Y. Sadovsky, A. Sajot, G. Salmi, L. Salt, J. Sampsonidis, D. Sannino, M. Savoy-Navarro, A. Schwanda, C. Schwemling, Ph. Schwering, B. Schwickerath, U. Scuri, F. Sedykh, Y. Segar, A.M. Sekulin, R. Sette, G. Shellard, R.C. Siebel, M. Simard, L. Simonetto, F. Sisakian, A.N. Smadj, G. Smirnov, N. Smirnova, O. Smith, G.R. Sokolov, A. Solovianov, O. Sopczak, A. Sosnowski, R. Spassov, T. Spiriti, E. Squarci, S. Stanescu, C. Stanitzki, M. Stevenson, K. Stocchi, A. Strauss, J. Strub, R. Stugu, B. Szczekowski, M. Szeptycka, M. Tabarelli, T. Taffard, A. Tegenfeldt, F. Terranova, F. Timmermans, J. Tinti, N. Tkatchev, L.G. Tobin, M. Todorova, S. Tome, B. Tonazzo, A. Tortora, L. Tortosa, P. Treille, D. Tristram, G. Trochimczuk, M. Troncon, C. Turluer, M.-L. Tyapkin, I.A. Tyapkin, P. Tzamarias, S. Ullaland, O. Uvarov, V. Valenti, G. Vallazza, E. Vander Velde, C. Van Dam, P. Van Den Boeck, W. Van Doninck, W.K. Van Eldik, J.V. Van Lysebetten, A. Van Remortel, N. Van Vulpen, I. Vegni, G. Ventura, L. Venusa, W. Verbeure, F. Verdier, P. Verlato, M. Vertogradov, L.S. Verzi, V. Vilanova, D. Vitale, L. Vlasov, E. Vodopyanov, A.S. Voulgaris, G. Vrba, V. Wahlena, H. Washbrook, A.J. Weiser, C. Wicke, D. Wickens, J.H. Wilkinson, G.R. Winter, M. Witek, M. Wolf, G. Yi, J. Yushchenko, O. Zalewska, A. Zalewski, P. Zavrtanik, D. Zevgolatakos, E. Zimin, N.I. Zintchenko, A. Zoller, Ph. Zumerle, G. Zupan, M. DELPHI Collaboration
Abstract: A measurement of the W mass and width has been performed by the DELPHI Collaboration using the data collected during 1998. The data sample has an integrated luminosity of 155 pb-1 and an average centre-of-mass energy of 188.6 GeV. Results are obtained by applying the method of direct reconstruction of the mass of the W from its decay products in both the W+W- → lvlqq′ and W+W- → qq′qq′ channels. The W mass result for the 1998 data set is MW = 80.387 ± 0.087(stat) ± 0.034(syst) ± 0.017(LEP) ± 0.035(FSI) GeV/c2, where FSI represents the uncertainty due to final state interaction effects in the qq′qq′ channel, and LEP represents that arising from the knowledge of the beam energy of the accelerator. Combining this result with those previously published by the DELPHI Collaboration gives the result MW = 80.359 ± 0.074(stat) ± 0.032(syst) ± 0.017(LEP) ± 0.033(FSI) GeV/c2. The combined value for the W width is λW = 2.266 ± 0.176(stat)± 0.056(syst)± 0.052(FSI) GeV/c2. © 2001 Elsevier Science B.V. All rights reserved.
Published: 2001

31. Search for sleptons in e+e- collisions at √s = 183 to 189 GeV

Author: 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. Anjos, N. 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. Belokopytov, Y. Benekos, N.C. Benvenuti, A.C. Berat, C. Berggren, M. Berntzon, L. Bertrand, D. Besancon, M. Besson, N. Bilenky, M.S. Bizouard, M.-A. Bloch, D. Blom, H.M. Bol, L. 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. Buschmann, P. Caccia, M. Calvi, M. Camporesi, T. Canale, V. Carena, F. Carroll, L. Caso, C. Castillo Gimenez, M.V. Cattai, A. Cavallo, F.R. Charpentier, P. 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. Cossutti, F. Costa, M. Crawley, H.B. Crennell, D. Croix, J. Crosetti, G. Cuevas Maestro, J. Czellar, S. D'Hondt, J. Dalmau, J. Davenport, M. Da Silva, W. Della Ricca, G. Delpierre, P. Demaria, N. de Angelis, A. de Boer, W. de Clercq, C. de Lotto, B. de Min, A. de Paula, L. Dijkstra, H. Di Ciaccio, L. Doroba, K. Dracos, M. Drees, J. Dris, M. Eigen, G. Ekelof, T. Ellert, M. Elsing, M. Engel, J.-P. Espirito Santo, M. Fanourakis, G. Fassouliotis, D. Feindt, M. Fernandez, J. Ferrer, A. Ferrer-Ribas, E. Ferro, F. Firestone, A. Flagmeyer, U. Foeth, H. Fokitis, E. Fontanelli, F. Franek, B. Frodesen, A.G. Fruhwirth, R. Fulda-Quenzer, F. Fuster, J. Galloni, A. Gamba, D. Gamblin, S. Gandelman, M. Garcia, C. Gaspar, C. Gaspar, M. Gasparini, U. Gavillet, P. Gazis, E.N. Gele, D. Geralis, T. Gerdyukov, L. Ghodbane, N. Gil, I. Glege, F. Gokieli, R. Golob, B. Gomez-Ceballos, G. Goncalves, P. Gonzalez Caballero, I. Gopal, G. Gorn, L. Gouz, Y. Gracco, V. Grahl, J. Graziani, E. Grosdidier, G. Grzelak, K. Guy, J. Haag, C. Hahn, F. Hahn, S. Haider, S. Hallgren, A. Hamacher, K. Hansen, J. Harris, F.J. Haug, S. Hauler, F. Hedberg, V. Heising, S. Hernandez, J.J. Herquet, P. Herr, H. Hertz, O. Higon, E. Holmgren, S.-O. Holt, P.J. Hoorelbeke, S. Houlden, M. Hrubec, J. Hughes, G.J. Hultqvist, K. Jackson, J.N. Jacobsson, R. Jalocha, P. Jarlskog, C. Jarlskog, G. Jarry, P. Jean-Marie, B. Jeans, D. Johansson, E.K. Jonsson, P. Joram, C. Juillot, P. Jungermann, L. Kapusta, F. Karafasoulis, K. Katsanevas, S. Katsoufis, E.C. Keranen, R. Kernel, G. Kersevan, B.P. Khokhlov, Y. Khomenko, B.A. Khovanski, N.N. Kiiskinen, A. King, B. Kinvig, A. Kjaer, N.J. Klapp, O. Kluit, P. Kokkinias, P. Kostioukhine, V. Kourkoumelis, C. Kouznetsov, O. Krammer, M. Kriznic, E. Krumstein, Z. Kubinec, P. Kucharczyk, M. Kurowska, J. Lamsa, J.W. Laugier, J.-P. Leder, G. Ledroit, F. Leinonen, L. Leisos, A. Leitner, R. Lenzen, G. Lepeltier, V. Lesiak, T. Lethuillier, M. Libby, J. Liebig, W. Liko, D. Lipniacka, A. Lippi, I. Loken, J.G. Lopes, J.H. Lopez, J.M. Lopez-Fernandez, R. Loukas, D. Lutz, P. Lyons, L. MacNaughton, J. Mahon, J.R. Maio, A. Malek, A. Maltezos, S. Malychev, V. Mandl, F. Marco, J. Marco, R. Marechal, B. Margoni, M. Marin, J.-C. Mariotti, C. Markou, A. Martinez-Rivero, C. Marti i Garcia, S. Masik, J. Mastroyiannopoulos, N. Matorras, F. Matteuzzi, C. Matthiae, G. Mazzucato, F. Mazzucato, M. Mc Cubbin, M. Mc Kay, R. Mc Nulty, R. Mc Pherson, G. Merle, E. Meroni, C. Meyer, W.T. Migliore, E. Mirabito, L. Mitaroff, W.A. Mjoernmark, U. Moa, T. Moch, M. Moenig, K. Monge, M.R. Montenegro, J. Moraes, D. Morettini, P. Morton, G. Mueller, U. Muenich, K. Mulders, M. Mundim, L.M. Murray, W.J. Muryn, B. Myatt, G. Myklebust, T. Nassiakou, M. Navarria, F.L. Nawrocki, K. Negri, P. Nemecek, S. Neufeld, N. Nicolaidou, R. Niezurawski, P. Nikolenko, M. Nomokonov, V. Nygren, A. Obraztsov, V. Olshevski, A.G. Onofre, A. Orava, R. Osterberg, K. Ouraou, A. Oyanguren, A. Paganoni, M. Paiano, S. Pain, R. Paiva, R. Palacios, J. Palka, H. Papadopoulou, T.D. Pape, L. Parkes, C. Parodi, F. Parzefall, U. Passeri, A. Passon, O. Pavel, T. Pegoraro, M. Peralta, L. Perepelitsa, V. Pernicka, M. Perrotta, A. Petridou, C. Petrolini, A. Phillips, H.T. Pierre, F. Pimenta, M. Piotto, E. Podobnik, T. Poireau, V. Pol, M.E. Polok, G. Poropat, P. Pozdniakov, V. Privitera, P. Pukhaeva, N. Pullia, A. Radojicic, D. Ragazzi, S. Rahmani, H. Ratoff, P.N. Read, A.L. Rebecchi, P. Redaelli, N.G. Regler, M. Rehn, J. Reid, D. Reinhardt, R. Renton, P.B. Resvanis, L.K. Richard, F. Ridky, J. Rinaudo, G. Ripp-Baudot, I. Romero, A. Ronchese, P. Rosenberg, E.I. Rosinsky, P. Rovelli, T. Ruhlmann-Kleider, V. Ruiz, A. Saarikko, H. Sacquin, Y. Sadovsky, A. Sajot, G. Salmi, L. Salt, J. Sampsonidis, D. Sannino, M. Savoy-Navarro, A. Schwanda, C. Schwemling, P. Schwering, B. Schwickerath, U. Scuri, F. Seager, P. Sedykh, Y. Segar, A.M. Sekulin, R. Sette, G. Shellard, R.C. Siebel, M. Simard, L. Simonetto, F. Sisakian, A.N. Smadja, G. Smirnov, N. Smirnova, O. Smith, G.R. Sokolov, A. Solovianov, O. Sopczak, A. Sosnowski, R. Spassov, T. Spiriti, E. Squarcia, S. Stanescu, C. Stanitzki, M. Stevenson, K. Stocchi, A. Strauss, J. Strub, R. Stugu, B. Szczekowski, M. Szeptycka, M. Tabarelli, T. Taffard, A. Tegenfeldt, F. Terranova, F. Timmermans, J. Tinti, N. Tkatchev, L.G. Tobin, M. Todorova, S. Tome, B. Tonazzo, A. Tortora, L. Tortosa, P. Treille, D. Tristram, G. Trochimczuk, M. Troncon, C. Turluer, M.-L. Tyapkin, I.A. Tyapkin, P. Tzamarias, S. Ullaland, O. Uvarov, V. Valenti, G. Vallazza, E. Vander Velde, C. van Dam, P. van den Boeck, W. van Eldik, J. van Lysebetten, A. van Remortel, N. van Vulpen, I. Vegni, G. Ventura, L. Venus, W. Verbeure, F. Verdier, P. Verlato, M. Vertogradov, L.S. Verzi, V. Vilanova, D. Vitale, L. Vlasov, E. Vodopyanov, A.S. Voulgaris, G. Vrba, V. Wahlen, H. Washbrook, A.J. Weiser, C. Wicke, D. Wickens, J.H. Wilkinson, G.R. Winter, M. Witek, M. Wolf, G. Yi, J. Yushchenko, O. Zalewska, A. Zalewski, P. Zavrtanik, D. Zevgolatakos, E. Zimin, N.I. Zintchenko, A. Zoller, P. Zumerle, G. Zupan, M.
Subjects: High Energy Physics::Phenomenology, High Energy Physics::Experiment
Abstract: Data taken by the DELPHI experiment at centre-of-mass energies of 183 GeV and 189 GeV with a total integrated luminosity of 212 pb-1 have been used to search for the supersymmetric partners of the electrons, muons, and taus in the context of the Minimal Supersymmetric Standard Model (MSSM). The decay topologies searched for were the direct decay (ℓ̃ → ℓx̃), producing acoplanar lepton pairs plus missing energy, and the cascade decay (ℓ → ℓx̃02 → ℓγx̃01), producing acoplanar lepton and photon pairs plus missing energy. The observed number of events is in agreement with Standard Model predictions. The 95% CL excluded mass limits for selectrons, smuons and staus are mẽ ≤ 87 GeV/c2, mμ̃ ≤ 80 GeV/c2 and mτ̃ 75 GeV/c2, respectively, for values of μ=-200 GeV/c2 and tanβ=1.5.
Published: 2001

32. Measurement of Vcb from the decay process B̄0 → D*+ℓ-v̄

Author: Abreu, P. Adam, W. Adye, T. Adzic, P. 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. Belous, K. 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. Chapkin, M. Charpentier, P. 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. Cossutti, F. Costa, M. Crawley, H.B. Crennell, D. Crepe, S. Crosetti, G. Cuevas Maestro, J. Czellar, S. D'Hondt, J. Dalmau, J. Davenport, M. da Silva, W. della Ricca, G. Delpierre, P. Demaria, N. de Angelis, A. de Boer, W. de Clercq, C. de Lotto, B. de Min, A. de Paula, L. Dijkstra, H. di Ciaccio, L. Dolbeau, J. Doroba, K. Dracos, M. Drees, J. Dris, M. Duperrin, A. Eigen, G. Ekelof, T. Ellert, M. Elsing, M. Engel, J.-P. Espirito Santo, M. Fanourakis, G. Fassouliotis, D. Feindt, M. Fernandez, J. Ferrer, A. Ferrer-Ribas, E. Ferro, F. Firestone, A. Flagmeyer, U. Foeth, H. Fokitis, E. Fontanelli, F. Franek, B. Frodesen, A.G. Fruhwirth, R. Fulda-Quenzer, F. Fuster, J. Galloni, A. Gamba, D. Gamblin, S. Gandelman, M. Garcia, C. Gaspar, C. Gaspar, M. Gasparini, U. Gavillet, P. Gazis, E.N. Gele, D. Geralis, T. Ghodbane, N. Gil, I. Glege, F. Gokieli, R. Golob, B. Gomez-Ceballos, G. Goncalves, P. Gonzalez Caballero, I. Gopal, G. Gorn, L. Gouz, Y. Gracco, V. Grahl, J. Graziani, E. Gris, P. Grosdidier, G. Grzelak, K. Guy, J. Haag, C. Hahn, F. Hahn, S. Haider, S. Hallgren, A. Hamacher, K. Hansen, J. Harris, F.J. Hauler, F. Hedberg, V. Heising, S. Hernandez, J.J. Herquet, P. Herr, H. Higon, E. Holmgren, S.-O. Holt, P.J. Hoorelbeke, S. Houlden, M. Hrubec, J. Huber, M. Hughes, G.J. Hultqvist, K. Jackson, J.N. Jacobsson, R. Jalocha, P. Janik, R. Jarlskog, C. Jarlskog, G. Jarry, P. Jean-Marie, B. Jeans, D. Johansson, E.K. Jonsson, P. Joram, C. Juillot, P. Jungermann, L. Kapusta, F. Karafasoulis, K. Katsanevas, S. Katsoufis, E.C. Keranen, R. Kernel, G. Kersevan, B.P. Khokhlov, Y. Khomenko, B.A. Khovanski, N.N. Kiiskinen, A. King, B. Kinvig, A. Kjaer, N.J. Klapp, O. Klein, H. Kluit, P. Kokkinias, P. Kostioukhine, V. Kourkoumelis, C. Kouznetsov, O. Krammer, M. Kriznic, E. Krumstein, Z. Kubinec, P. Kurowska, J. Kurvinen, K. Lamsa, J.W. Lane, D.W. Lapin, V. Laugier, J.-P. Lauhakangas, R. Leder, G. Ledroit, F. Leinonen, L. Leisos, A. Leitner, R. Lenzen, G. Lepeltier, V. Lesiak, T. Lethuillier, M. Libby, J. Liebig, W. Liko, D. Lipniacka, A. Lippi, I. Loerstad, B. Loken, J.G. Lopes, J.H. Lopez, J.M. Lopez-Fernandez, R. Loukas, D. Lutz, P. Lyons, L. MacNaughton, J. Mahon, J.R. Maio, A. Malek, A. Maltezos, S. Malychev, V. Mandl, F. Marco, J. Marco, R. Marechal, B. Margoni, M. Marin, J.-C. Mariotti, C. Markou, A. Martinez-Rivero, C. Marti i Garcia, S. Masik, J. Mastroyiannopoulos, N. Matorras, F. Matteuzzi, C. Matthiae, G. Mazzucato, F. Mazzucato, M. Mc Cubbin, M. Mc Kay, R. Mc Nulty, R. Mc Pherson, G. Meroni, C. Meyer, W.T. Miagkov, A. Migliore, E. Mirabito, L. Mitaroff, W.A. Mjoernmark, U. Moa, T. Moch, M. Moeller, R. Moenig, K. Monge, M.R. Moraes, D. Morettini, P. Morton, G. Mueller, U. Muenich, K. Mulders, M. Mulet-Marquis, C. Muresan, R. Murray, W.J. Muryn, B. Myatt, G. Myklebust, T. Naraghi, F. Nassiakou, M. Navarria, F.L. Nawrocki, K. Negri, P. Neufeld, N. Nicolaidou, R. Nielsen, B.S. Niezurawski, P. Nikolenko, M. Nomokonov, V. Nygren, A. Obraztsov, V. Olshevski, A.G. Onofre, A. Orava, R. Orazi, G. Osterberg, K. Ouraou, A. Oyanguren, A. Paganoni, M. Paiano, S. Pain, R. Paiva, R. Palacios, J. Palka, H. Papadopoulou, T.D. Pape, L. Parkes, C. Parodi, F. Parzefall, U. Passeri, A. Passon, O. Pavel, T. Pegoraro, M. Peralta, L. Pernicka, M. Perrotta, A. Petridou, C. Petrolini, A. Phillips, H.T. Pierre, F. Pimenta, M. Piotto, E. Podobnik, T. Poireau, V. Pol, M.E. Polok, G. Poropat, P. Pozdniakov, V. Privitera, P. Pukhaeva, N. Pullia, A. Radojicic, D. Ragazzi, S. Rahmani, H. Rames, J. Ratoff, P.N. Read, A.L. Rebecchi, P. Redaelli, N.G. Regler, M. Rehn, J. Reid, D. Reinertsen, P. Reinhardt, R. Renton, P.B. Resvanis, L.K. Richard, F. Ridky, J. Rinaudo, G. Ripp-Baudot, I. Rohne, O. Romero, A. Ronchese, P. Rosenberg, E.I. Rosinsky, P. Roudeau, P. Rovelli, T. Ruhlmann-Kleider, V. Ruiz, A. Saarikko, H. Sacquin, Y. Sadovsky, A. Sajot, G. Salt, J. Sampsonidis, D. Sannino, M. Savoy-Navarro, A. Schwemling, P. Schwering, B. Schwickerath, U. Scuri, F. Seager, P. Sedykh, Y. Segar, A.M. Seibert, N. Sekulin, R. Sette, G. Shellard, R.C. Siebel, M. Simard, L. Simonetto, F. Sisakian, A.N. Smadja, G. Smirnova, O. Smith, G.R. Solovianov, O. Sopczak, A. Sosnowski, R. Spassov, T. Spiriti, E. Squarcia, S. Stanescu, C. Stanitzki, M. Stevenson, K. Stocchi, A. Strauss, J. Strub, R. Stugu, B. Szczekowski, M. Szeptycka, M. Tabarelli, T. Taffard, A. Tegenfeldt, F. Terranova, F. Timmermans, J. Tinti, N. Tkatchev, L.G. Tobin, M. Todorova, S. Tome, B. Tonazzo, A. Tortora, L. Tortosa, P. Transtromer, G. Treille, D. Tristram, G. Trochimczuk, M. Troncon, C. Turluer, M.-L. Tyapkin, I.A. Tyapkin, P. Tzamarias, S. Ullaland, O. Uvarov, V. Valenti, G. Vallazza, E. van Dam, P. van den Boeck, W. van Doninck, W.K. van Eldik, J. van Lysebetten, A. van Remortel, N. van Vulpen, I. Vegni, G. Ventura, L. Venus, W. Verbeure, F. Verdier, P. Verlato, M. Vertogradov, L.S. Verzi, V. Vilanova, D. Vitale, L. Vlasov, E. Vodopyanov, A.S. Voulgaris, G. Vrba, V. Wahlen, H. Walck, C. Washbrook, A.J. Weiser, C. Wicke, D. Wickens, J.H. Wilkinson, G.R. Winter, M. Witek, M. Wolf, G. Yi, J. Yushchenko, O. Zalewska, A. Zalewski, P. Zavrtanik, D. Zevgolatakos, E. Zimin, N.I. Zintchenko, A. Zoller, P. Zumerle, G. Zupan, M.
Abstract: A new precise measurement of |Vcb| and of the branching ratio BR(B̄0 → D*+ℓ-v̄ℓ) has been performed using a sample of about 5000 semileptonic decays B̄0 → D*+ℓ-v̄ℓ, selected by the DELPHI detector at LEP I by tagging the soft pion from D*+ → D0π+. The results are: Vcb = (39.0 ± 1.5 (stat.)-2.6 +2.5 (syst. exp.) ± 1.3 (syst. th.)) × 10-3, BR(B̄0 → D*+ℓ-v̄ℓ) = (4.70 ± 0.13 (stat.)-0.31 +0.36 (syst. exp.))%. The analytic dependencies of the differential cross-section and of the Isgur-Wise form factor as functions of the variable w = vB0 · vD* have also been obtained by unfolding the experimental resolution. © 2001 Published by Elsevier Science B.V.
Published: 2001

33. Measurement of V_{cb} from the decay process \bar{B^0} - D^{*+} \ell^- \bar{\nu}

Author: Abreu, P., Blom, H.M., Boudinov, E., Kluit, P.M., Mulders, M.P., Reid, D.W., Timmermans, J.J.M., van Dam, P.H.A., van Eldik, J.E., van Vulpen, I.B., and Delphi (IHEF, IoP, FNWI)
Published: 2001

34. Single intermediate vector boson production in e+e- collisions at √s = 183 and 189 gev

Author: 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. Anashkin, E. Anassontzis, E.G. Andersson, P. Andreazza, A. Andringa, S. Anjos, N. 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. Bellunato, T.F. Benvenuti, A.C. Berat, C. Berggren, M. Berntzon, L. Bertrand, D. Besancon, M. Besson, N. Bilenky, M.S. Bloch, D. Blom, H.M. Bol, L. Bonesini, M. Boonekamp, M. Booth, P.S.L. Borisov, G. Bosio, C. Botner, O. Boudinov, E. Bouquet, B. Bowcock, T.J.V. Boyko, I. Bozovic, I. Bozzo, M. Bracko, M. Branchini, P. Brenner, R.A. Bruckman, P. Brunet, J.-M. Bugge, L. Buschmann, P. Caccia, M. Calvi, M. Camporesi, T. Canale, V. Carena, F. Carroll, L. Caso, C. Castillo Gimenez, M.V. Cattai, A. Cavallo, F.R. Chapkin, M. Charpentier, P. Checchia, P. Chelkov, G.A. Chierici, R. Chliapnikov, P. Chochula, P. Chorowicz, V. Chudoba, J. Cieslik, K. Collin, P. Contri, R. Cortina, E. Cosme, G. Cossutti, F. Costa, M. Crawley, H.B. Crennell, D. Croix, J. Crosetti, G. Cuevas Maestro, J. Czellar, S. D'Hondt, J. Dalmau, J. Davenport, M. da Silva, W. della Ricca, G. Delpierre, P. Demaria, N. de Angelis, A. de Boer, W. de Clercq, C. de Lotto, B. de Min, A. de Paula, L. Dijkstra, H. di Ciaccio, L. Doroba, K. Dracos, M. Drees, J. Dris, M. Eigen, G. Ekelof, T. Ellert, M. Elsing, M. Engel, J.-P. Espirito Santo, M. Fanourakis, G. Fassouliotis, D. Feindt, M. Fernandez, J. Ferrer, A. Ferrer-Ribas, E. Ferro, F. Firestone, A. Flagmeyer, U. Foeth, H. Fokitis, E. Fontanelli, F. Franek, B. Frodesen, A.G. Fruhwirth, R. Fulda-Quenzer, F. Fuster, J. Galloni, A. Gamba, D. Gamblin, S. Gandelman, M. Garcia, C. Gaspar, C. Gaspar, M. Gasparini, U. Gaviller, P. Gazis, E.N. Gele, D. Geralis, T. Ghodbane, N. Gil, I. Glege, F. Gokieli, R. Golob, B. Gomez-Ceballos, G. Goncalves, P. Gonzalez Caballero, I. Gopal, G. Gorn, L. Gouz, Y. Gracco, V. Grahl, J. Graziani, E. Grosdidier, G. Grzelak, K. Guy, J. Haag, C. Hahn, F. Hahn, S. Haider, S. Hallgren, A. Hamacher, K. Hansen, J. Harris, F.J. Haug, S. Hauler, F. Hedberg, V. Heising, S. Hernandez, J.J. Herquet, P. Herr, H. Hertz, O. Higon, E. Holmgren, S.-O. Holt, P.J. Hoorelbeke, S. Houlden, M. Hrubec, J. Hughes, G.J. Hultqvist, K. Jackson, J.N. Jacobsson, R. Jalocha, P. Jarlskog, C. Jarlskog, G. Jarry, P. Jean-Marie, B. Jeans, D. Johansson, E.K. Jonsson, P. Joram, C. Juillot, P. Jungermann, L. Kapusta, F. Karafasoulis, K. Katsanevas, S. Katsoufis, E.C. Keranen, R. Kernel, G. Kersevan, B.P. Khokhlov, Y. Khomenko, B.A. Khovanski, N.N. Kiiskinen, A. King, B. Kinvig, A. Kjaer, N.J. Klapp, O. Kluit, P. Kokkinias, P. Kostioukhine, V. Kourkoumelis, C. Kouznetsov, O. Krammer, M. Kriznic, E. Krumstein, Z. Kubinec, P. Kucharczyk, M. Kurowska, J. Lamsa, J.W. Laugier, J.-P. Leder, G. Ledroit, F. Leinonen, L. Leisos, A. Leitner, R. Lenzen, G. Lepeltier, V. Lesiak, T. Lethuillier, M. Libby, J. Liebig, W. Liko, D. Lipniacka, A. Lippi, I. Loken, J.G. Lopes, J.H. Lopez, J.M. Lopez-Fernandez, R. Loukas, D. Lutz, P. Lyons, L. MacNaughton, J. Mahon, J.R. Maio, A. Malek, A. Maltezos, S. Malychev, V. Mandl, F. Marco, J. Marco, R. Marechal, B. Margoni, M. Marin, J.-C. Mariotti, C. Markou, A. Masik, J. Mastroyiannopoulos, N. Matorras, F. Matteuzzi, C. Matthiae, G. Mazzucato, F. Mazzucato, M. Mc Cubbin, M. Mc Kay, R. Mc Nulty, R. Mc Pherson, G. Merle, E. Meroni, C. Meyer, W.T. Miagkov, A. Migliore, E. Mirabito, L. Mitaroff, W.A. Mjoernmark, U. Moa, T. Moch, M. Moenig, K. Monge, M.R. Montenegro, J. Moraes, D. Morettini, P. Morton, G. Mueller, U. Muenich, K. Mulders, M. Mundim, L.M. Murray, W.J. Muryn, B. Myatt, G. Myklebust, T. Nassiakou, M. Navarria, F.L. Nawrocki, K. Negri, P. Nemecek, S. Neufeld, N. Nicolaidou, R. Niezurawski, P. Nikolenko, M. Nomokono, V. Nygren, A. Obraztsov, V. Olshevski, A.G. Onofre, A. Orava, R. Osterberg, K. Ouraou, A. Oyanguren, A. Paganoni, M. Paiano, S. Pain, R. Paiva, R. Palacios, J. Palka, H. Papadopoulou, T.D. Pape, L. Parzefall, U. Passeri, A. Passon, O. Pavel, T. Pegoraro, M. Peralta, L. Perepelitsa, V. Pernicka, M. Perrotta, A. Petridou, C. Petrolini, A. Phillips, H.T. Pierre, F. Pimenta, M. Piotto, E. Podobnik, T. Poireau, V. Pol, M.E. Polok, G. Poropat, P. Pozdniakov, V. Privitera, P. Pukhaeva, N. Pullia, A. Radojicic, D. Ragazzi, S. Rahmani, H. Ratoff, P.N. Read, A.L. Rebecchi, P. Redaelli, N.G. Regler, M. Rehn, J. Reid, D. Reinhardt, R. Renton, P.B. Resvanis, L.K. Richard, F. Ridky, J. Rinaudo, G. Ripp-Baudot, I. Romero, A. Ronchese, P. Rosenberg, E.I. Rosinsky, P. Roudeau, P. Rovelli, T. Ruhlmann-Kleider, V. Ruiz, A. Saarikko, H. Sacquin, Y. Sadovsky, A. Sajot, G. Salmi, L. Salt, J. Sampsonidis, D. Sannino, M. Savoy-Navarro, A. Schwanda, C. Schwemling, P. Schwering, B. Schwickerath, U. Scuri, F. Seager, P. Sedykh, Y. Segar, A.M. Sekulin, R. Sette, G. Shellard, R.C. Siebel, M. Simard, L. Simonetto, F. Sisakian, A.N. Smadja, G. Smirnov, N. Smirnova, O. Smith, G.R. Sokolov, A. Sopczak, A. Sosnowski, R. Spassov, T. Spiriti, E. Stanescu, C. Stanitzki, M. Stevenson, K. Stocchi, A. Strauss, J. Strub, R. Stugu, B. Szczekowski, M. Szeptycka, M. Tabarelli, T. Taffard, A. Tegenfeldt, F. Terranova, F. Timmermans, J. Tinti, N. Tkatchev, L.G. Tobin, M. Todorova, S. Tome, B. Tonazzo, A. Tortora, L. Tortosa, P. Treille, D. Tristram, G. Trochimczuk, M. Troncon, C. Turluer, M.-L. Tyapkin, I.A. Tyapkin, P. Tzamarias, S. Ullaland, O. Uvarov, V. Valenti, G. Vallazza, E. van Dam, P. van den Boeck, W. van Eldik, J. van Lysebetten, A. van Remortel, N. van Vulpen, I. Vegni, G. Ventura, L. Venus, W. Verbeure, F. Verdier, P. Verlato, M. Vertogradov, L.S. Verzi, V. Vilanova, D. Vitale, L. Vlasov, E. Vodopyanov, A.S. Voulgaris, G. Vrba, V. Wahlen, H. Washbrook, A.J. Weiser, C. Wicke, D. Wickens, J.H. Wilkinson, G.R. Winter, M. Witek, M. Wolf, G. Yi, J. Yushchenko, O. Zalewska, A. Zalewski, P. Zavrtanik, D. Zevgolatakos, E. Zimin, N.I. Zintchenko, A. Zoller, P. Zumerle, G. Zupan, M.
Subjects: High Energy Physics::Experiment
Abstract: The cross sections for the production of single charged and neutral intermediate vector bosons were measured using integrated luminosities of 52 pb-1 and 154 pb-1 collected by the experiment at centre-of-mass energies of 182.6 GeV and 188.6 GeV, respectively. The cross sections for the reactions were determined in limited kinematic regions. The results found are in agreement with the Standard Model predictions for these channels. © 2001 Elsevier Science B.V.
Published: 2001

35. Study of dimuon production in photon-photon collisions and measurement of QED photon structure functions at LEP

Author: 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. 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. Bertrand, D. Besancon, M. Bigi, M. Bilenky, M.S. Bizouard, M.-A. Bloch, D. Blom, H.M. Bonesini, M. Boonekamp, M. Booth, P.S.L. Borgland, A.W. 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. Chabaud, V. Charpentier, P. 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. Cossutti, F. Crawley, H.B. Crennell, D. Crepe, S. Crosetti, G. Cuevas Maestro, J. Czellar, S. Davenport, M. Da Silva, W. Della Ricca, G. Delpierre, P. Demaria, N. de Angelis, A. de Boer, W. de Clercq, C. de Lotto, B. de Min, A. de Paula, L. Dijkstra, H. Di Ciaccio, L. Dolbeau, J. Doroba, K. Dracos, M. Drees, J. Dris, M. Duperrin, A. Durand, J.-D. Eigen, G. Ekelof, T. Ekspong, G. Ellert, M. Elsing, M. Engel, J.-P. Espirito Santo, M. Fanourakis, G. Fassouliotis, D. Fayot, J. Feindt, M. Fenyuk, A. Ferrer, A. Ferrer-Ribas, E. Ferro, F. Fichet, S. Firestone, A. Flagmeyer, U. Foeth, H. Fokitis, E. Fontanelli, F. Franek, B. Frodesen, A.G. Fruhwirth, R. Fulda-Quenzer, F. Fuster, J. Galloni, A. Gamba, D. Gamblin, S. Gandelman, M. Garcia, C. Gaspar, C. Gaspar, M. Gasparini, U. Gavillet, P. Gazis, E.N. Gele, D. Ghodbane, N. Gil, I. Glege, F. Gokieli, R. Golob, B. Gomez-Ceballos, G. Goncalves, P. Gonzalez Caballero, I. Gopal, G. Gorn, L. Gouz, Y. Gracco, V. Grahl, J. Graziani, E. Gris, P. Grosdidier, G. Grzelak, K. Guy, J. Haag, C. Hahn, F. Hahn, S. Haider, S. Hallgren, A. Hamacher, K. Hansen, J. Harris, F.J. Hedberg, V. Heising, S. Hernandez, J.J. Herquet, P. Herr, H. Hessing, T.L. Heuser, J.-M. Higon, E. Holmgren, S.-O. Holt, P.J. Hoorelbeke, S. Houlden, M. Hrubec, J. Huber, M. Huet, K. Hughes, G.J. Hultqvist, K. Jackson, J.N. Jacobsson, R. Jalocha, P. Janik, R. Jarlskog, C. Jarlskog, G. Jarry, P. Jean-Marie, B. Jeans, D. Johansson, E.K. Jonsson, P. Joram, C. Juillot, P. Jungermann, L. Kapusta, F. Karafasoulis, K. Katsanevas, S. Katsoufis, E.C. Keranen, R. Kernel, G. Kersevan, B.P. Khomenko, B.A. Khovanski, N.N. Kiiskinen, A. King, B. Kinvig, A. Kjaer, N.J. Klapp, O. Klein, H. Kluit, P. Kokkinias, P. Kostioukhine, V. Kourkoumelis, C. Kouznetsov, O. Krammer, M. Kriznic, E. Krumstein, Z. Kubinec, P. Kurowska, J. Kurvinen, K. Lamsa, J.W. Lane, D.W. Lapin, V. Laugier, J.-P. Lauhakangas, R. Leder, G. Ledroit, F. Lefebure, V. Leinonen, L. Leisos, A. Leitner, R. Lemonne, J. Lenzen, G. Lepeltier, V. Lesiak, T. Lethuillier, M. Libby, J. Liebig, W. Liko, D. Lipniacka, A. Lippi, I. Loerstad, B. Loken, J.G. Lopes, J.H. Lopez, J.M. Lopez-Fernandez, R. Loukas, D. Lutz, P. Lyons, L. MacNaughton, J. Mahon, J.R. Maio, A. Malek, A. Malmgren, T.G.M. Maltezos, S. Malychev, V. Mandl, F. Marco, J. Marco, R. Marechal, B. Margoni, M. Marin, J.-C. Mariotti, C. Markou, A. Martinez-Rivero, C. Martinez-Vidal, F. Marti i Garcia, S. Masik, J. Mastroyiannopoulos, N. Matorras, F. Matteuzzi, C. Matthiae, G. Mazzucato, F. Mazzucato, M. Mc Cubbin, M. Mc Kay, R. Mc Nulty, R. Mc Pherson, G. Meroni, C. Meyer, W.T. Miagkov, A. Migliore, E. Mirabito, L. Mitaroff, W.A. Mjoernmark, U. Moa, T. Moch, M. Moeller, R. Moenig, K. Monge, M.R. Moraes, D. Moreau, X. Morettini, P. Morton, G. Mueller, U. Muenich, K. Mulders, M. Mulet-Marquis, C. Muresan, R. Murray, W.J. Muryn, B. Myatt, G. Myklebust, T. Naraghi, F. Nassiakou, M. Navarria, F.L. Navas, S. Nawrocki, K. Negri, P. Neufeld, N. Nicolaidou, R. Nielsen, B.S. Niezurawski, P. Nikolenko, M. Nomokonov, V. Nygren, A. Obraztsov, V. Olshevski, A.G. Onofre, A. Orava, R. Orazi, G. Osterberg, K. Ouraou, A. Paganoni, M. Paiano, S. Pain, R. Paiva, R. Palacios, J. Palka, H. Papadopoulou, T.D. Papageorgiou, K. Pape, L. Parkes, C. Parodi, F. Parzefall, U. Passeri, A. Passon, O. Pavel, T. Pegoraro, M. Peralta, L. Pernicka, M. Perrotta, A. Petridou, C. Petrolini, A. Phillips, H.T. Pierre, F. Pimenta, M. Piotto, E. Podobnik, T. Pol, M.E. Polok, G. Poropat, P. Pozdniakov, V. Privitera, P. Pukhaeva, N. Pullia, A. Radojicic, D. Ragazzi, S. Rahmani, H. Rames, J. Ratoff, P.N. Read, A.L. Rebecchi, P. Redaelli, N.G. Regler, M. Rehn, J. Reid, D. Reinhardt, R. Renton, P.B. Resvanis, L.K. Richard, F. Ridky, J. Rinaudo, G. Ripp-Baudot, I. Rohne, O. Romero, A. Ronchese, P. Rosenberg, E.I. Rosinsky, P. Roudeau, P. Rovelli, T. Royon, C. Ruhlmann-Kleider, V. Ruiz, A. Saarikko, H. Sacquin, Y. Sadovsky, A. Sajot, G. Salt, J. Sampsonidis, D. Sannino, M. Schwemling, P. Schwering, B. Schwickerath, U. Scuri, F. Seager, P. Sedykh, Y. Segar, A.M. Seibert, N. Sekulin, R. Shellard, R.C. Siebel, M. Simard, L. Simonetto, F. Sisakian, A.N. Smadja, G. Smirnov, N. Smirnova, O. Smith, G.R. Sopczak, A. Sosnowski, R. Spassov, T. Spiriti, E. Squarcia, S. Stanescu, C. Stanic, S. Stanitzki, M. Stevenson, K. Stocchi, A. Strauss, J. Strub, R. Stugu, B. Szczekowski, M. Szeptycka, M. Tabarelli, T. Taffard, A. Tchikilev, O. Tegenfeldt, F. Terranova, F. Thomas, J. Timmermans, J. Tinti, N. Tkatchev, L.G. Tobin, M. Todorova, S. Tomaradze, A. Tome, B. Tonazzo, A. Tortora, L. Tortosa, P. Transtromer, G. Treille, D. Tristram, G. Trochimczuk, M. Troncon, C. Turluer, M.-L. Tyapkin, I.A. Tzamarias, S. Ullaland, O. Uvarov, V. Valenti, G. Vallazza, E. Vander Velde, C. van Dam, P. van den Boeck, W. van Doninck, W.K. van Eldik, J. van Lysebetten, A. van Remortel, N. van Vulpen, I. Vegni, G. Ventura, L. Venus, W. Verbeure, F. Verdier, P. Verlato, M. Vertogradov, L.S. Verzi, V. Vilanova, D. Vitale, L. Vlasov, E. Vodopyanov, A.S. Voulgaris, G. Vrba, V. Wahlen, H. Walck, C. Washbrook, A.J. Weiser, C. Wicke, D. Wickens, J.H. Wilkinson, G.R. Winter, M. Witek, M. Wolf, G. Yi, J. Yushchenko, O. Zalewska, A. Zalewski, P. Zavrtanik, D. Zevgolatakos, E. Zimin, N.I. Zintchenko, A. Zoller, Ph. Zucchelli, G.C. Zumerle, G.
Subjects: High Energy Physics::Experiment
Abstract: Muon pair production in the process e+e- → e+e- μ+μ- is studied using the data taken at LEP1 (√s ≃ mz) with the DELPHI detector during the years 1992-1995. The corresponding integrated luminosity is 138.5 pb-1. The QED predictions have been tested over the whole Q2 range accessible at LEP1 (from several GeV2/c4 to several hundred GeV2/c4) by comparing experimental distributions with distributions resulting from Monte Carlo simulations using various generators. Selected events are used to extract the leptonic photon structure function Fγ2. Azimuthal correlations are used to obtain information on additional structure functions, FγA and FγB, which originate from interference terms of the scattering amplitudes. The measured ratios FγA/Fγ2 and FγB/Fγ2 are significantly different from zero and consistent with QED predictions.
Published: 2001

36. Measurement of the Mass and Width of the W Boson in e+e- Collisions at sqrt(s) = 189 GeV

Author: Abreu, P., Blom, H.M., Boudinov, E., Kluit, P.M., Mulders, M.P., Reid, D.W., Timmermans, J.J.M., van Dam, P.H.A., van Eldik, J.E., van Vulpen, I.B., and Delphi (IHEF, IoP, FNWI)
Published: 2001

37. Search for R-parity violation with a $\overline{U}\overline{D}\overlin e{D}$ coupling at $\sqrt{s}$=189 GeV

Author: 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., Asman, B., Augustin, J.E., Augustinus, A., Baillon, P., Ballestrero, A., Bambade, P., Barao, F., Barbiellini, G., Barbier, R., Bardin, Dmitri Yu., Barker, G.J., Baroncelli, A., Battaglia, M., Baubillier, M., Becks, K.H., Begalli, M., Behrmann, A., Beilliere, P., Belokopytov, Yu., Benekos, N.C., Benvenuti, A.C., Berat, C., Berggren, M., Berntzon, L., Bertrand, D., Besancon, M., Bilenky, Mikhail 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, P., 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., Cossutti, F., Costa, M., Crawley, H.B., Crennell, D., Crosetti, G., Cuevas Maestro, J., Czellar, S., D'Hondt, J., Dalmau, J., Davenport, M., Da Silva, W., Della Ricca, G., Delpierre, P., Demaria, N., De Angelis, A., De Boer, W., De Clercq, C., De Lotto, B., De Min, A., De Paula, L., Dijkstra, H., Di Ciaccio, L., Dolbeau, J., Doroba, K., Dracos, M., Drees, J., Dris, M., Eigen, G., Ekelof, T., Ellert, M., Elsing, M., Engel, J.P., Espirito Santo, M.C., Fanourakis, G., Fassouliotis, D., Feindt, M., Fernandez, J., Ferrer, A., Ferrer-Ribas, E., Ferro, F., Firestone, A., Flagmeyer, U., Foeth, H., Fokitis, E., Fontanelli, F., Franek, B., Frodesen, A.G., Fruhwirth, R., Fulda-Quenzer, F., Fuster, J., Galloni, A., Gamba, D., Gamblin, S., Gandelman, M., Garcia, C., Gaspar, C., Gaspar, M., Gasparini, U., Gavillet, P., Gazis, Evangelos, Gele, D., Geralis, T., Gerdyukov, L., Ghodbane, N., Gil Botella, Ines, Glege, F., Gokieli, R., Golob, B., Gomez-Ceballos, G., Goncalves, P., Gonzalez Caballero, I., Gopal, G., Gorn, L., Gouz, Yu., Gracco, V., Grahl, J., Graziani, E., Gris, P., Grosdidier, G., Grzelak, K., Guy, J., Haag, C., Hahn, F., Hahn, S., Haider, S., Hallgren, A., Hamacher, K., Hansen, J., Harris, F.J., Hauler, F., Hedberg, V., Heising, S., Hernandez, J.J., Herquet, P., Herr, H., Higon, E., Holmgren, S.O., Holt, P.J., Hoorelbeke, S., Houlden, M., Hrubec, J., Huber, M., Hughes, G.J., Hultqvist, K., Jackson, John Neil, Jacobsson, R., Jalocha, P., Janik, R., Jarlskog, C., Jarlskog, G., Jarry, P., Jean-Marie, B., Jeans, D., Johansson, Erik Karl, Jonsson, P., Joram, C., Juillot, P., Jungermann, L., Kapusta, Frederic, Karafasoulis, K., Katsanevas, S., Katsoufis, E.C., Keranen, R., Kernel, G., Kersevan, B.P., Khokhlov, Yu.A., Khomenko, B.A., Khovanski, N.N., Kiiskinen, A., King, B., Kinvig, A., Kjaer, N.J., Klapp, O., Kluit, P., Kokkinias, P., Kostioukhine, V., Kourkoumelis, C., Kouznetsov, O., Krammer, M., Kriznic, E., Krumstein, Z., Kubinec, P., Kurowska, J., Kurvinen, K., Lamsa, J.W., Lane, D.W., Lapin, V., Laugier, J.P., Lauhakangas, R., Leder, G., Ledroit, Fabienne, Leinonen, L., Leisos, A., Leitner, R., Lenzen, G., Lepeltier, V., Lesiak, T., Lethuillier, M., Libby, J., Liebig, W., Liko, D., Lipniacka, A., Lippi, I., Loerstad, B., Loken, J.G., Lopes, J.H., Lopez, J.M., Lopez-Fernandez, R., Loukas, D., Lutz, P., Lyons, L., MacNaughton, J., Mahon, J.R., Maio, A., Malek, A., Maltezos, S., Malychev, V., Mandl, F., Marco, J., Marco, R., Marechal, B., Margoni, M., Marin, J.C., Mariotti, C., Markou, A., Martinez-Rivero, C., Marti i Garcia, S., Masik, J., Mastroyiannopoulos, N., Matorras, F., Matteuzzi, C., Matthiae, G., Mazzucato, F., Mazzucato, M., McCubbin, M., McKay, R., McNulty, R., McPherson, G., Merle, E., Meroni, C., Meyer, W.T., Migliore, E., Mirabito, L., Mitaroff, W.A., Mjoernmark, U., Moa, T., Moch, M., Moller, Rasmus, Monig, Klaus, Monge, M.R., Moraes, D., Morettini, P., Morton, G., Mueller, U., Muenich, K., Mulders, M., Mulet-Marquis, C., Mundim, L.M., Muresan, R., Murray, W.J., Muryn, B., Myatt, G., Myklebust, T., Naraghi, F., Nassiakou, M., Navarria, F.L., Nawrocki, K., Negri, P., Neufeld, N., Nicolaidou, R., Nielsen, B.S., Niezurawski, P., Nikolenko, M., Nomokonov, V., Nygren, A., Obraztsov, V., Olshevski, A.G., Onofre, A., Orava, R., Orazi, G., Osterberg, K., Ouraou, A., Oyanguren, A., Paganoni, M., Paiano, S., Pain, R., Paiva, R., Palacios, J., Palka, H., Papadopoulou, T.D., Pape, L., Parkes, C., Parodi, F., Parzefall, U., Passeri, A., Passon, O., Pavel, T., Pegoraro, M., Peralta, L., Pernicka, M., Perrotta, A., Petridou, C., Petrolini, A., Phillips, H.T., Pierre, F., Pimenta, M., Piotto, E., Podobnik, T., Poireau, V., Pol, M.E., Polok, G., Poropat, P., Pozdniakov, V., Privitera, P., Pukhaeva, N., Pullia, A., Radojicic, D., Ragazzi, S., Rahmani, H., Rames, J., Ratoff, P.N., Read, Alexander L., Rebecchi, P., Redaelli, Nicola Giuseppe, Regler, M., Rehn, J., Reid, D., Reinertsen, P., Reinhardt, R., Renton, P.B., Resvanis, L.K., Richard, F., Ridky, J., Rinaudo, G., Ripp-Baudot, Isabelle, Romero, A., Ronchese, P., Rosenberg, E.I., Rosinsky, P., Rovelli, T., Ruhlmann-Kleider, V., Ruiz, A., Saarikko, H., Sacquin, Y., Sadovsky, A., Sajot, G., Salt, J., Sampsonidis, D., Sannino, M., Savoy-Navarro, A., Schwemling, P., Schwering, B., Schwickerath, U., Scuri, Fabrizio, Seager, P., Sedykh, Y., Segar, A.M., Seibert, N., Sekulin, R., Sette, G., Shellard, R.C., Siebel, M., Simard, L., Simonetto, F., Sisakian, A.N., Smadja, G., Smirnov, N., Smirnova, O., Smith, G.R., Sokolov, A., Sopczak, A., Sosnowski, R., Spassov, T., Spiriti, E., Squarcia, S., Stanescu, C., Stanitzki, M., Stevenson, K., Stocchi, A., Strauss, J., Strub, R., Stugu, B., Szczekowski, M., Szeptycka, M., Tabarelli, T., Taffard, A., Tegenfeldt, F., Terranova, F., Timmermans, Jan, Tinti, N., Tkatchev, L.G., Tobin, M., Todorova, S., Tome, B., Tonazzo, A., Tortora, L., Tortosa, P., Transtromer, G., Treille, D., Tristram, G., Trochimczuk, M., Troncon, C., Turluer, M.L., Tyapkin, I.A., Tyapkin, P., Tzamarias, S., Ullaland, O., Uvarov, V., Valenti, G., Vallazza, E., Van Dam, Piet, Van den Boeck, W., Van Eldik, J., Van Lysebetten, A., van Remortel, N., Van Vulpen, I., Vegni, G., Ventura, L., Venus, W., Verbeure, F., Verdier, P., Verlato, M., Vertogradov, L.S., Verzi, V., Vilanova, D., Vitale, L., Vlasov, E., Vodopianov, A.S., Voulgaris, G., Vrba, V., Wahlen, H., Washbrook, A.J., Weiser, C., Wicke, D., Wickens, J.H., Wilkinson, G.R., Winter, M., Witek, M., Wolf, G., Yi, J., Yushchenko, O., Zalewska, A., Zalewski, P., Zavrtanik, D., Zevgolatakos, E., Zimine, N.I., Zintchenko, A., Zoller, P., Zumerle, G., and Zupan, M.
Subjects: High Energy Physics::Phenomenology, High Energy Physics::Experiment, Particle Physics - Experiment
Abstract: 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 \mbox{$R$-parity} through a single dominant $\bar{U} \bar{D} \bar{D}$~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: \begin{itemize} \item neutralino mass: $m_{\tilde{\chi^0_{1}}} \ge 32$ GeV \item chargino mass: $m_{\tilde{\chi^+_{1}}} \ge 94 $ GeV \item stop and sbottom mass (indirect decay) with $\Delta M > 5$ GeV: $m_{\tilde{t_{1}}} \ge 74$ GeV, for $\Phi_{mix}=0$ rad $m_{\tilde{t_{1}}} \ge 59$ GeV, for $\Phi_{mix}=0.98 $ rad $m_{\tilde{b_{1}}} \ge 72$ GeV, for $\Phi_{mix}=0$ rad. \end{itemize} The angle $\phi_{mix}$ is the mixing angle between left and right handed quarks. 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 U ̄ D ̄ D ̄ 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: m χ ̃ 0 1 ⩾32 GeV; chargino mass: m χ ̃ + 1 ⩾94 GeV; stop and sbottom mass (indirect decay) with ΔM >5 GeV: m t ̃ 1 ⩾74 GeV for Φ mix =0 rad, m t ̃ 1 ⩾59 GeV for Φ mix =0.98 rad, m b ̃ 1 ⩾72 GeV for Φ mix =0 rad. The angle φ mix is the mixing angle between left and right handed quarks. 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 Ubar Dbar Dbar 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: m_{\tilde{\chi^0_{1}}} \geq 32 GeV chargino mass: m_{\tilde{\chi^+_{1}}} \geq 94 GeV stop and sbottom mass (indirect decay) with \Delta M > 5 GeV: m_{\tilde{t_1}} \geq 74 GeV, for \Phi_{mix}=0 rad m_{\tilde{t_1}} \geq 59 GeV, for \Phi_{mix}=0.98 rad m_{\tilde{b_1}} \geq 72 GeV, for \Phi_{mix}=0 rad. The angle \phi_{mix} is the mixing angle between left and right handed quarks.
Published: 2000

38. Charged and identified particles in the hadronic decay of W bosons and in e+e- → qq̄ from 130 to 200 GeV

Author: Abreu, P. Adam, W. Adye, T. Adzic, P. 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. Anjos, N. 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. Belous, K. Benekos, N.C. Benvenuti, A.C. Berat, C. Berggren, M. Bertrand, D. Besancon, M. Bigi, 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. Chabaud, V. Chapkin, M. 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. Cossutti, F. Costa, M. Crawley, H.B. Crennell, D. Crepe, S. Crosetti, G. Cuevas Maestro, J. Czellar, S. Davenport, M. Da Silva, W. Della Ricca, G. Delpierre, P. Demaria, N. de Angelis, A. de Boer, W. de Clercq, C. de Lotto, B. de Min, A. de Paula, L. Dijkstra, H. di Ciaccio, L. Dolbeau, J. Doroba, K. Dracos, M. Drees, J. Dris, M. Duperrin, A. Durand, J.-D. Eigen, G. Ekelof, T. Ekspong, G. Ellert, M. Elsing, M. Engel, J.-P. Espirito Santo, M. Fanourakis, G. Fassouliotis, D. Fayot, J. Feindt, M. Ferrer, A. Ferrer-Ribas, E. Ferro, F. Fichet, S. Firestone, A. Flagmeyer, U. Foeth, H. Fokitis, E. Fontanelli, F. Franek, B. Frodesen, A.G. Fruhwirth, R. Fulda-Quenzer, F. Fuster, J. Galloni, A. Gamba, D. Gamblin, S. Gandelman, M. Garcia, C. Gaspar, C. Gaspar, M. Gasparini, U. Gavillet, Ph. Gazis, E.N. Gele, D. Geralis, T. Ghodbane, N. Gil, I. Glege, F. Gokieli, R. Golob, B. Gomez-Ceballos, G. Goncalves, P. Gonzalez Caballero, I. Gopal, G. Gorn, L. Gouz, Y. Gracco, V. Grahl, J. Graziani, E. Gris, P. Grosdidier, G. Grzelak, K. Guy, J. Haag, C. Hahn, F. Hahn, S. Haider, S. Hallgren, A. Hamacher, K. Hansen, J. Harris, F.J. Hauler, F. Hedberg, V. Heising, S. Hernandez, J.J. Herquet, P. Herr, H. Hessing, T.L. Heuser, J.-M. Higon, E. Holmgren, S.-O. Holt, P.J. Hoorelbeke, S. Houlden, M. Hrubec, J. Huber, M. Huet, K. Hughes, G.J. Hultqvist, K. Jackson, J.N. Jacobsson, R. Jalocha, P. Janik, R. Jarlskog, Ch. Jarlskog, G. Jarry, P. Jean-Marie, B. Jeans, D. Johansson, E.K. Jonsson, P. Joram, C. Juillot, P. Jungermann, L. Kapusta, F. Karafasoulis, K. Katsanevas, S. Katsoufis, E.C. Keranen, R. Kernel, G. Kersevan, B.P. Khokhlov, Yu. Khomenko, B.A. Khovanski, N.N. Kiiskinen, A. King, B. Kinvig, A. Kjaer, N.J. Klapp, O. Klein, H. Kluit, P. Kokkinias, P. Kostioukhine, V. Kourkoumelis, C. Kouznetsov, O. Krammer, M. Kriznic, E. Krumstein, Z. Kubinec, P. Kurowska, J. Kurvinen, K. Lamsa, J.W. Lane, D.W. Lapin, V. Laugier, J.-P. Lauhakangas, R. Leder, G. Ledroit, F. Lefebure, V. Leinonen, L. Leisos, A. Leitner, R. Lemonne, J. Lenzen, G. Lepeltier, V. Lesiak, T. Lethuillier, M. Libby, J. Liebig, W. Liko, D. Lipniacka, A. Lippi, I. Loerstad, B. Loken, J.G. Lopes, J.H. Lopez, J.M. Lopez-Fernandez, R. Loukas, D. Lutz, P. Lyons, L. MacNaughton, J. Mahon, J.R. Maio, A. Malek, A. Malmgren, T.G.M. Maltezos, S. Malychev, V. Mandl, F. Marco, J. Marco, R. Marechal, B. Margoni, M. Marin, J.-C. Mariotti, C. Markou, A. Martinez-Rivero, C. Marti i Garcia, S. Masik, J. Mastroyiannopoulos, N. Matorras, F. Matteuzzi, C. Matthiae, G. Mazzucato, F. Mazzucato, M. Mc Cubbin, M. Mc Kay, R. Mc Nulty, R. Mc Pherson, G. Meroni, C. Metreveli, Z. Meyer, W.T. Miagkov, A. Migliore, E. Mirabito, L. Mitaroff, W.A. Mjoernmark, U. Moa, T. Moch, M. Moeller, R. Moenig, K. Monge, M.R. Moraes, D. Moreau, X. Morettini, P. Morton, G. Mueller, U. Muenich, K. Mulders, M. Mulet-Marquis, C. Muresan, R. Murray, W.J. Muryn, B. Myatt, G. Myklebust, T. Naraghi, F. Nassiakou, M. Navarria, F.L. Nawrocki, K. Negri, P. Neufeld, N. Nicolaidou, R. Nielsen, B.S. Niezurawski, P. Nikolenko, M. Nomokonov, V. Nygren, A. Obraztsov, V. Olshevski, A.G. Onofre, A. Orava, R. Orazi, G. Osterberg, K. Ouraou, A. Oyanguren, A. Paganoni, M. Paiano, S. Pain, R. Paiva, R. Palacios, J. Palka, H. Papadopoulou, T.D. Pape, L. Parkes, C. Parodi, F. Parzefall, U. Passeri, A. Passon, O. Pavel, T. Pegoraro, M. Peralta, L. Pernicka, M. Perrotta, A. Petridou, C. Petrolini, A. Phillips, H.T. Pierre, F. Pimenta, M. Piotto, E. Podobnik, T. Pol, M.E. Polok, G. Poropat, P. Pozdniakov, V. Privitera, P. Pukhaeva, N. Pullia, A. Radojicic, D. Ragazzi, S. Rahmani, H. Rames, J. Ratoff, P.N. Read, A.L. Rebecchi, P. Redaelli, N.G. Regler, M. Rehn, J. Reid, D. Reinertsen, P. Reinhardt, R. Renton, P.B. Resvanis, L.K. Richard, F. Ridky, J. Rinaudo, G. Ripp-Baudot, I. Rohne, O. Romero, A. Ronchese, P. Rosenberg, E.I. Rosinsky, P. Roudeau, P. Rovelli, T. Royon, Ch. Ruhlmann-Kleider, V. Ruiz, A. Saarikko, H. Sacquin, Y. Sadovsky, A. Sajot, G. Salt, J. Sampsonidis, D. Sannino, M. Schwemling, Ph. Schwering, B. Schwickerath, U. Scuri, F. Seager, P. Sedykh, Y. Segar, A.M. Seibert, N. Sekulin, R. Shellard, R.C. Siebel, M. Simard, L. Simonetto, F. Sisakian, A.N. Smadja, G. Smirnova, O. Smith, G.R. Solovianov, O. Sopczak, A. Sosnowski, R. Spassov, T. Spiriti, E. Squarcia, S. Stanescu, C. Stanic, S. Stanitzki, M. Stevenson, K. Stocchi, A. Strauss, J. Strub, R. Stugu, B. Szczekowski, M. Szeptycka, M. Tabarelli, T. Taffard, A. Tegenfeldt, F. Terranova, F. Thomas, J. Timmermans, J. Tinti, N. Tkatchev, L.G. Tobin, M. Todorova, S. Tomaradze, A. Tome, B. Tonazzo, A. Tortora, L. Tortosa, P. Transtromer, G. Treille, D. Tristram, G. Trochimczuk, M. Troncon, C. Turluer, M.-L. Tyapkin, I.A. Tyapkin, P. Tzamarias, S. Ullaland, O. Uvarov, V. Valenti, G. Vallazza, E. van Dam, P. van den Boeck, W. van Eldik, J. van Lysebetten, A. van Remortel, N. van Vulpen, I. Vegni, G. Ventura, L. Venus, W. Verbeure, F. Verdier, P. Verlato, M. Vertogradov, L.S. Verzi, V. Vilanova, D. Vitale, L. Vlasov, E. Vodopyanov, A.S. Voulgaris, G. Vrba, V. Wahlen, H. Walck, C. Washbrook, A.J. Weiser, C. Wicke, D. Wickens, J.H. Wilkinson, G.R. Winter, M. Witek, M. Wolf, G. Yi, J. Yushchenko, O. Zalewska, A. Zalewski, P. Zavrtanik, D. Zevgolatakos, E. Zimin, N.I. Zintchenko, A. Zoller, P. Zucchelli, G.C. Zumerle, G.
Subjects: High Energy Physics::Experiment
Abstract: Inclusive distributions of charged particles in hadronic W decays are experimentally investigated using the statistics collected by the DELPHI experiment at LEP during 1997, 1998 and 1999, at centre-of-mass energies from 183 to around 200 GeV. The possible effects of interconnection between the hadronic decays of two Ws are not observed. Measurements of the average multiplicity for charged and identified particles in qq̄ and WW events at centre-of-mass energies from 130 to 200 GeV and in W decays are presented. The results on the average multiplicity of identified particles and on the position ξ* of the maximum of the ξp = -log(2p/√s) distribution are compared with predictions of JETSET and MLLA calculations.
Published: 2000

39. Search for Heavy Stable and Long-Lived Particles in $e^+ e^-$ Collisions at $\sqrt{s}$=189 GeV

Author: Abreu, P., Adam, W., Adye, T., Adzic, P., 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., Asman, B., Augustin, J.-E., Augustinus, A., Baillon, P., Bambade, P., Barao, F., Barbiellini, Guido, Barbier, R., Bardin, D.Yu., Barker, G., Baroncelli, A., Battaglia, M., Baubillier, M., Becks, K.H., Begalli, M., Behrmann, A., Beilliere, P., Belokopytov, Yu., Belous, K., Benekos, N.C., Benvenuti, A.C., Berat, C., Berggren, M., Bertrand, D., Besancon, M., Bigi, M., Bilenkii, M.S., Bizouard, M.A., Bloch, D., Blom, H.M., Bonesini, M., Boonekamp, M., Booth, P.S.L., Borgland, A.W., 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., Chabaud, V., Chapkin, M., Charpentier, P., Checchia, P., Chelkov, G.A., Chierici, R., Shlyapnikov, P., Chochula, P., Chorowicz, V., Chudoba, J., Cieslik, K., Collins, P., Contri, R., Cortina, E., Cosme, G., Cossutti, F., Crawley, H.B., Crennell, D., Crepe, S., Crosetti, G., Cuevas-Maestro, J., Czellar, S., Davenport, M., Da Silva, W., Della Ricca, G., Delpierre, P.A., Demaria, N., De Angelis, A., De Boer, W., De Clercq, C., De Lotto, B., De Min, A., De Paula, L., Dijkstra, H., Di Ciaccio, L., Dolbeau, J., Doroba, K., Dracos, M., Drees, J., Dris, M., Duperrin, A., Durand, J.D., Eigen, G., Ekelof, T., Ekspong, G., Ellert, M., Elsing, M., Engel, J.P., Espirito Santo, M., Fanourakis, G., Fassouliotis, D., Fayot, J., Feindt, M., Ferrer, A., Ferrer-Ribas, E., Ferro, F., Fichet, S., Firestone, A., Flagmeyer, U., Foth, H., Fokitis, E., Fontanelli, F., Franek, B., Frodesen, A.G., Fruhwirth, R., Fulda-Quenzer, F., Fuster, J., Galloni, A., Gamba, D., Gamblin, S., Gandelman, M., Garcia, C., Gaspar, C., Gaspar, M., Gasparini, U., Gavillet, P., Gazis, E.N., Gele, D., Geralis, T., Ghodbane, N., Gil, I., Glege, F., Gokieli, R., Golob, B., Gomez-Ceballos, G., Goncalves, P., Gonzalez Caballero, I., Gopal, G., Gorn, L., Guz, Yu., Gracco, V., Grahl, J., Graziani, E., Gris, P., Grosdidier, G., Grzelak, K., Guy, J., Haag, C., Hahn, F., Hahn, S., Haider, S., Hallgren, A., Hamacher, K., Hansen, J., Harris, F.J., Hedberg, V., Heising, S., Hernandez, J.J., Herquet, P., Herr, H., Hessing, T.L., Heuser, J.M., Higon, E., Holmgren, S.O., Holt, P.J., Hoorelbeke, S., Houlden, M., Hrubec, J., Huber, M., Huet, K., Hughes, G.J., Hultqvist, K., Jackson, J.N., Jacobsson, R., Jalocha, P., Janik, R., Jarlskog, C., Jarlskog, G., Jarry, P., Jean-Marie, B., Jeans, D., Johansson, E.K., Jonsson, P., Joram, C., Juillot, P., Jungermann, L., Kapusta, F., Karafasoulis, K., Katsanevas, S., Katsoufis, E.C., Keranen, R., Kernel, G., Kersevan, B.P., Khokhlov, Yu., Khomenko, B.A., Khovanskii, N.N., Kiiskinen, A., King, B.J., Kinvig, A., Kjaer, N.J., Klapp, O., Klein, H., Kluit, P., Kokkinias, P., Kostyukhin, V., Kourkoumelis, C., Kuznetsov, O., Krammer, M., Kriznic, E., Krumshtein, Z., Kubinec, P., Kurowska, J., Kurvinen, K., Lamsa, J.W., Lane, D.W., Lapin, V., Laugier, J.P., Lauhakangas, R., Leder, G., Ledroit, F., Lefebure, V., Leinonen, L., Leisos, A., Leitner, R., Lenzen, G., Lepeltier, V., Lesiak, T., Lethuillier, M., Libby, J., Liebig, W., Liko, D., Lipniacka, A., Lippi, I., Loerstad, B., Loken, J.G., Lopes, J.H., Lopez, J.M., Lopez-Fernandez, R., Loukas, D., Lutz, P., Lyons, L., MacNaughton, J., Mahon, J.R., Maio, A., Malek, A., Malmgren, T.G.M., Maltezos, S., Malychev, V., Mandl, F., Marco, J., Marco, R., Marechal, B., Margoni, M., Marin, J.C., Mariotti, C., Markou, A., Martinez-Rivero, C., Martinez-Vidal, F., Marti, I Garcia S., Masik, J., Mastroyiannopoulos, N., Matorras, F., Matteuzzi, C., Matthiae, G., Mazzucato, F., Mazzucato, M., McCubbin, M., McKay, R., McNulty, R., McPherson, G., Meroni, C., Meyer, W.T., Myagkov, A., Migliore, E., Mirabito, L., Mitaroff, W.A., Mjornmark, U., Moa, T., Moch, M., Moller, R., Monig, K., Monge, M.R., Moraes, D., Moreau, X., Morettini, P., Morton, G., Mueller, U., Muenich, K., Mulders, M., Mulet-Marquis, C., Muresan, R., Murray, W.J., Muryn, B., Myatt, G., Myklebust, T., Naraghi, F., Nassiakou, M., Navarria, F.L., Navas, S., Nawrocki, K., Negri, P., Neufeld, N., Nicolaidou, R., Nielsen, B.S., Niezurawski, P., Nikolenko, M., Nomokonov, V., Nygren, A., Obraztsov, V.F., Olshevskii, A.G., Onofre, A., Orava, R., Orazi, G., Osterberg, K., Ouraou, A., Paganoni, M., Paiano, S., Pain, R., Paiva, R., Palacios, J., Palka, H., Papadopoulou, T.D., Pape, L., Parkes, C., Parodi, F., Parzefall, U., Passeri, A., Passon, O., Pavel, T., Pegoraro, M., Peralta, L., Pernicka, M., Perrotta, A., Petridou, C., Petrolini, A., Phillips, H.T., Pierre, F., Pimenta, M., Piotto, E., Podobnik, T., Pol, M.E., Polok, G., Poropat, P., Pozdnyakov, V., Privitera, P., Pukhaeva, N., Pullia, A., Radojicic, D., Ragazzi, S., Rahmani, H., Rames, J., Ratoff, P.N., Read, A.L., Rebecchi, P., Redaelli, N.G., Regler, M., Rehn, J., Reid, D., Reinhardt, R., Renton, P.B., Resvanis, L.K., Richard, F., Ridky, J., Rinaudo, G., Ripp-Baudot, I., Rohne, O., Romero, A., Ronchese, P., Rosenberg, E.I., Rosinsky, P., Roudeau, P., Rovelli, T., Royon, C., Ruhlmann-Kleider, V., Ruiz, A., Saarikko, H., Sacquin, Y., Sadovskii, A., Sajot, G., Salt, J., Sampsonidis, D., Sannino, M., Schwemling, P., Schwering, B., Schwickerath, U., Scuri, F., Seager, P., Sedykh, Yu., Segar, A.M., Seibert, N., Sekulin, R., Shellard, R.C., Siebel, M., Simard, L., Simonetto, F., Sissakian, A.N., Smadja, G., Smirnova, O., Smith, G.R., Solovyanov, O., Sopczak, A., Sosnowski, R., Spassoff, Tz., Spiriti, E., Squarcia, S., Stanescu, C., Stanic, S., Stanitzki, M., Stevenson, K., Stocchi, A., Strauss, J., Strub, R., Stugu, B., Szczekowski, M., Szeptycka, M., Tabarelli De Fatis, T., Taffard, A., Tegenfeldt, F., Terranova, F., Thomas, J., Timmermans, J., Tinti, N., Tkatchev, L.G., Tobin, M., Todorova, S., Tomaradze, A.G., Tome, B., Tonazzo, A., Tortora, L., Tortosa, Pablo, Transtromer, G., Treille, D., Tristram, G., Trochimczuk, M., Troncon, C., Turluer, M.L., Tyapkin, I.A., Tyapkin, P., Tzamarias, S., Ullaland, O., Uvarov, V., Valenti, G., Vallazza, E., Van Dam, P., Vanden Boeck, W., Van Doninck, W.K., Van Eldik, J., Van Lysebetten, A., Van Remortel, N., Van Vulpen, I., Vegni, G., Ventura, Laurent, Venus, W., Verbeure, F., Verdier, P., Verlato, M., Vertogradov, L.S., Verzi, V., Vilanova, D., Vitale, L., Vlasov, E., Vodopyanov, A., Voulgaris, G., Vrba, V., Wahlen, H., Walck, C., Washbrook, A.J., Weiser, C., Wicke, D., Wickens, J.H., Wilkinson, G.R., Winter, M., Witek, M., Wolf, G., Yi, J., Yushchenko, O., Zalewska, A., Zalewski, P., Zavrtanik, D., Zevgolatakos, E., Zimin, N.I., Zintchenko, A., Zoller, P., Zucchelli, G.C., Zumerle, G., Institut de Physique Nucléaire de Lyon (IPNL), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de l'Accélérateur Linéaire (LAL), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), Institut de Recherches Subatomiques (IReS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Cancéropôle du Grand Est-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Physique Corpusculaire et Cosmologie - Collège de France (PCC), Collège de France (CdF)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Centre de Physique des Particules de Marseille (CPPM), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Aix Marseille Université (AMU), DELPHI, Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), Collège de France (CdF (institution))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), and Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)
Subjects: High Energy Physics - Experiment (hep-ex), [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], FOS: Physical sciences, High Energy Physics::Experiment, Particle Physics - Experiment, High Energy Physics - Experiment
Abstract: A search for stable and long-lived heavy charged particles was performed using the data taken by the DELPHI experiment at an energy of 189 GeV. The Cherenkov light detected in the Ring Imaging Cherenkov Detector and the ionisation loss measured in the Time Projection Chamber were used to identify heavy particles passing through the detector. No evidence for the production of such particles has been found, therefore exclusion limits at 95% confidence level were derived on the masses of left and right handed smuons and staus. The results were combined with previous DELPHI searches in this channel. Including previous DELPHI results, masses of left (right) handed stable smuons and staus can be excluded between 2 GeV/c^2 and 88 (87.5) GeV/c^2 at 95% CL., Comment: 9 pages, 2 figures
Published: 2000
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40. Determination of $|V-ub|\over{|V-cb|}$ with DELPHI at LEP

Author: Abreu, P., Blom, H.M., Boudinov, E., Kjaer, N.J., Kluit, P.M., Mulders, M.P., Reid, D.W., Timmermans, J.J.M., van Apeldoorn, G.W., van Dam, P.H.A., van Eldik, J.E., van Vulpen, I.B., and Delphi (IHEF, IoP, FNWI)
Published: 2000

41. Study of $B^0_s - \overline{B^0_s}$ oscillations and $B^0_s$ lifetimes using hadronic decays of $B^0_s$ mesons

Author: Abreu, P., Adam, W., Adye, T., Adzic, P., Azhinenko, 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., Asman, B., Augustin, J.-E., Augustinus, A., Baillon, P., Bambade, P., Barao, F., Barbiellini, Guido, Barbier, R., Bardin, D.Yu., Barker, G., Baroncelli, A., Battaglia, M., Baubillier, M., Becks, K.H., Begalli, M., Behrmann, A., Beilliere, P., Belokopytov, Yu., Benekos, N.C., Benvenuti, A.C., Berat, C., Berggren, M., Bertini, D., Bertrand, D., Besancon, M., Bigi, M., Bilenkii, M.S., Bizouard, M.A., Bloch, D., Blom, H.M., Bonesini, M., Bonivento, W., Boonekamp, M., Booth, P.S.L., Borgland, A.W., 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., Brenke, T., Brenner, R.A., Bruckman, P., Brunet, J.M., Bugge, L., Buran, T., Burgsmuller, 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., Chabaud, V., Charpentier, P., Chaussard, L., Checchia, P., Chelkov, G.A., Chierici, R., Shlyapnikov, P., Chochula, P., Chorowicz, V., Chudoba, J., Cieslik, K., Collins, P., Contri, R., Cortina, E., Cosme, G., Cossutti, F., Crawley, H.B., Crennell, D., Crepe, S., Crosetti, G., Cuevas Maestro, J., Czellar, S., Davenport, M., Da Silva, W., Deghorain, A., Della Ricca, G., Delpierre, P., Demaria, N., De Angelis, A., De Boer, W., De Clercq, C., De Lotto, B., De Min, A., De Paula, L., Dijkstra, H., Di Ciaccio, L., Dolbeau, J., Doroba, K., Dracos, M., Drees, J., Dris, M., Duperrin, A., Durand, J.D., Eigen, G., Ekelof, T., Ekspong, G., Ellert, M., Elsing, M., Engel, J.P., Espirito Santo, M., Fanourakis, G., Fassouliotis, D., Fayot, J., Feindt, M., Fenyuk, A., Ferrari, P., Ferrer, A., Ferrer-Ribas, E., Ferro, F., Fichet, S., Firestone, A., Flagmeyer, U., Foeth, H., Fokitis, E., Fontanelli, F., Franek, B., Frodesen, A.G., Fruhwirth, R., Fulda-Quenzer, F., Fuster, J., Galloni, A., Gamba, D., Gamblin, S., Gandelman, M., Garcia, C., Gaspar, C., Gaspar, M., Gasparini, U., Gavillet, P., Gazis, E.N., Gele, D., Ghodbane, N., Gil, I., Glege, F., Gokieli, R., Golob, B., Gomez-Ceballos, G., Goncalves, P., Gonzalez Caballero, I., Gopal, G., Gorn, L., Guz, Yu., Gracco, V., Grahl, J., Graziani, E., Grimm, H.J., Gris, P., Grosdidier, G., Grzelak, K., Gunther, M., Guy, J., Hahn, F., Hahn, S., Haider, S., Hallgren, A., Hamacher, K., Hansen, J., Harris, F.J., Hedberg, V., Heising, S., Hernandez, J.J., Herquet, P., Herr, H., Hessing, T.L., Heuser, J.M., Higon, E., Holmgren, S.O., Holt, P.J., Hoorelbeke, S., Houlden, M., Hrubec, J., Huet, K., Hughes, G.J., Hultqvist, K., Jackson, J.N., Jacobsson, R., Jalocha, P., Janik, R., Jarlskog, C., Jarlskog, G., Jarry, P., Jean-Marie, B., Jeans, D., Johansson, E.K., Jonsson, P., Joram, C., Juillot, P., Kapusta, F., Karafasoulis, K., Katsanevas, S., Katsoufis, E.C., Keranen, R., Kernel, G., Kersevan, B.P., Khomenko, B.A., Khovansky, N.N., Kiiskinen, A., King, B., Kinvig, A., Kjaer, N.J., Klapp, O., Klein, H., Kluit, P., Kokkinias, P., Koratzinos, M., Kostyukhin, V., Kourkoumelis, C., Kuznetsov, O., Krammer, M., Kriznic, E., Krumshtein, Z., Kubinec, P., Kurowska, J., Kurvinen, K., Lamsa, J.W., Lane, D.W., Langefeld, P., Lapin, V., Laugier, J.P., Lauhakangas, R., Leder, G., Ledroit, F., Lefebure, V., Leinonen, L., Leisos, A., Leitner, R., Lemonne, J., Lenzen, G., Lepeltier, V., Lesiak, T., Lethuillier, M., Libby, J., Liko, D., Lipniacka, A., Lippi, I., Lorstad, B., Loken, J.G., Lopes, J.H., Lopez, J.M., Lopez-Fernandez, R., Loukas, D., Lutz, P., Lyons, L., MacNaughton, J., Mahon, J.R., Maio, A., Malek, A., Malmgren, T.G.M., Maltezos, S., Malychev, V., Mandl, F., Marco, J., Marco, R., Marechal, B., Margoni, M., Marin, J.C., Mariotti, C., Markou, A., Martinez-Rivero, C., Martinez-Vidal, F., Marti, I Garcia S., Masik, J., Mastroyiannopoulos, N., Matorras, F., Matteuzzi, C., Matthiae, G., Mazzucato, F., Mazzucato, M., McCubbin, M., McKay, R., McNulty, R., McPherson, G., Meroni, C., Meyer, W.T., Myagkov, A., Migliore, E., Mirabito, L., Mitaroff, W.A., Mjornmark, U., Moa, T., Moch, M., Moller, R., Monig, K., Monge, M.R., Moreau, X., Morettini, P., Morton, G., Muller, U., Munich, K., Mulders, M., Mulet-Marquis, C., Muresan, R., Murray, W.J., Muryn, B., Myatt, G., Myklebust, T., Naraghi, F., Nassiakou, M., Navarria, F.L., Navas, S., Nawrocki, K., Negri, P., Neufeld, N., Nicolaidou, R., Nielsen, B.S., Niezurawski, P., Nikolenko, M., Nomokonov, V., Nygren, A., Obraztsov, V., Olshevsky, A.G., Onofre, A., Orava, R., Orazi, G., Osterberg, K., Ouraou, A., Paganoni, M., Paiano, S., Pain, R., Paiva, R., Palacios, J., Palka, H., Papadopoulou, T.D., Papageorgiou, K., Pape, L., Parkes, C., Parodi, F., Parzefall, U., Passeri, A., Passon, O., Pavel, T., Pegoraro, M., Peralta, L., Pernicka, M., Perrotta, A., Petridou, C., Petrolini, A., Phillips, H.T., Pierre, F., Pimenta, M., Piotto, E., Podobnik, T., Pol, M.E., Polok, G., Poropat, P., Pozdnyakov, V., Privitera, P., Pukhaeva, N., Pullia, A., Radojicic, D., Ragazzi, S., Rahmani, H., Rames, J., Ratoff, P.N., Read, A.L., Rebecchi, P., Redaelli, N.G., Regler, M., Reid, D., Reinhardt, R., Renton, P.B., Resvanis, L.K., Richard, F., Ridky, J., Rinaudo, G., Rohne, O., Romero, A., Ronchese, P., Rosenberg, E.I., Rosinsky, P., Roudeau, P., Rovelli, T., Royon, C., Ruhlmann-Kleider, V., Ruiz, A., Saarikko, H., Sacquin, Y., Sadovsky, A., Sajot, G., Salt, J., Sampsonidis, D., Sannino, M., Schneider, H., Schwemling, P., Schwering, B., Schwickerath, U., Scuri, F., Seager, P., Sedykh, Yu., Segar, A.M., Sekulin, R., Shellard, R.C., Siebel, M., Simard, L., Simonetto, F., Sisakian, A.N., Smadja, G., Smirnov, N., Smirnova, O., Smith, G.R., Sokolov, A., Sopczak, A., Sosnowski, R., Spassoff, T., Spiriti, E., Sponholz, P., Squarcia, S., Stanescu, C., Stanic, S., Stevenson, K., Stocchi, A., Strauss, J., Strub, R., Stugu, B., Szczekowski, M., Szeptycka, M., Tabarelli, T., Taffard, A., Tegenfeldt, F., Terranova, F., Thomas, J., Timmermans, J., Tinti, N., Tkachev, L.G., Tobin, M., Todorova, S., Tomaradze, A., Tome, B., Tonazzo, A., Tortora, L., Tortosa, Pablo, Transtromer, G., Treille, D., Tristram, G., Trochimczuk, M., Troncon, C., Tsirou, A., Turluer, M.L., Tyapkin, I.A., Tzamarias, S., Ullaland, O., Uvarov, V., Valenti, G., Vallazza, E., Vander Velde, C., Van Apeldoorn, G.W., Van Dam, P., Van Den Boeck, W., Van Doninck, W.K., Van Eldik, J., Van Lysebetten, A., Van Remortel, N., Van Vulpen, I., Vegni, G., Ventura, L., Venus, W., Verbeure, F., Verlato, M., Vertogradov, L.S., Verzi, V., Vilanova, D., Vitale, L., Vlasov, E., Vodopyanov, A.S., Vollmer, C., Voulgaris, G., Vrba, V., Wahlen, H., Walck, C., Washbrook, A.J., Weiser, C., Wicke, D., Wickens, J.H., Wilkinson, G.R., Winter, M., Witek, M., Wolf, G., Yi, J., Yushchenko, O., Zalewska, A., Zalewski, P., Zavrtanik, D., Zevgolatakos, E., Zimin, N.I., Zinchenko, A., Zucchelli, G.C., Zumerle, G., Institut de Physique Nucléaire de Lyon (IPNL), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de l'Accélérateur Linéaire (LAL), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), Institut de Recherches Subatomiques (IReS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Cancéropôle du Grand Est-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Physique Corpusculaire et Cosmologie - Collège de France (PCC), Collège de France (CdF)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Centre de Physique des Particules de Marseille (CPPM), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Aix Marseille Université (AMU), DELPHI, Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS), Collège de France (CdF (institution))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC), and Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS)
Subjects: High Energy Physics - Experiment (hep-ex), [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], FOS: Physical sciences, Particle Physics - Experiment, High Energy Physics - Experiment
Abstract: Oscillations of B0s mesons have been studied in samples selected from about 3.5 million hadronic Z decays detected by DELPHI between 1992 and 1995. One analysis uses events in the exclusive decay channels: B0s -> Ds- pi+ or Ds- a1+ and B0s -> anti-D0 K- pi+ or anti-D0 K- a1+, where the D decays are completely reconstructed. In addition, B0s anti-B0s oscillations have been studied in events with an exclusively reconstructed Ds accompanied in the same hemisphere by a high momentum hadron of opposite charge. Combining the two analyses, a limit on the mass difference between the physical B0s states has been obtained: Delta(m_B0s) > 4.0 ps^{-1} at the 95% C.L. with a sensitivity of Delta(m_B0s) = 3.2 ps^{-1}. Using the latter sample of events, the B0s lifetime has been measured and an upper limit on the decay width difference between the two physical B0s states has been obtained: tau(B0s) = 1.53^{+0.16}_{-0.15}(stat.) +/- {0.07}(syst.) ps \Delta\Gamma(B0s)/\Gamma(B0s) < 0.69 at the 95% C.L. The combination of these results with those obtained using Ds+- lepton-+ sample gives: Delta(m_B0s) > 4.9 ps^{-1} at the 95% C.L. with a sensitivity of Delta(m_B0s) = 8.7 ps^{-1}. tau(B0s) = 1.46 +/- 0.11 ps and \Delta\Gamma(B0s)/\Gamma(B0s) < 0.45 at the 95% C.L., Comment: 42 pages, 13 figures
Published: 2000
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42. $\Lambda_{b}$ polarization in $Z^{0}$ decays at LEP W CERN-EP-99-155

Author: Abreu, P., Blom, H.M., Boudinov, E., Kjaer, N.J., Kluit, P.M., Mulders, M.P., Reid, D.W., Timmermans, J.J.M., van Apeldoorn, G.W., van Dam, P.H.A., van Eldik, J.E., van Vulpen, I.B., and Delphi (IHEF, IoP, FNWI)
Published: 2000

43. Determination of $P(c \to D^{*+})$ and $BR(c \to l^{+})$ at LEP1

Author: Abreu, P., Adam, W., Adye, T., Adzic, P., Azhinenko, 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., Asman, B., Augustin, J.-E., Augustinus, A., Baillon, P., Bambade, P., Barao, F., Barbiellini, Guido, Barbier, R., Bardin, D.Yu., Barker, G., Baroncelli, A., Battaglia, M., Baubillier, M., Becks, K.H., Begalli, M., Behrmann, A., Beilliere, P., Belokopytov, Yu., Benekos, N.C., Benvenuti, A.C., Berat, C., Berggren, M., Bertini, D., Bertrand, D., Besancon, M., Bigi, M., Bilenkii, M.S., Bizouard, M.A., Bloch, D., Blom, H.M., Bonesini, M., Bonivento, W., Boonekamp, M., Booth, P.S.L., Borgland, A.W., Borisov, G., Bosio, C., Botner, O., Boudinov, E., Bouquet, B., Bourdarios, C., Bowcock, T.J.V., Boyko, I., Bozovic, I., Bozzo, M., Branchini, P., Brenke, T., Brenner, R.A., Bruckman, P., Brunet, J.M., Bugge, L., Buran, T., Burgsmuller, 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., Chabaud, V., Charpentier, P., Chaussard, L., Checchia, P., Chelkov, G.A., Chierici, R., Shlyapnikov, P., Chochula, P., Chorowicz, V., Chudoba, J., Cieslik, K., Collins, P., Contri, R., Cortina, E., Cosme, G., Cossutti, F., Cowell, J.H., Crawley, H.B., Crennell, D., Crepe, S., Crosetti, G., Cuevas Maestro, J., Czellar, S., Davenport, M., Da Silva, W., Deghorain, A., Della Ricca, G., Delpierre, P., Demaria, N., De Angelis, A., De Boer, W., De Clercq, C., De Lotto, B., De Min, A., De Paula, L., Dijkstra, H., Di Ciaccio, L., Dolbeau, J., Doroba, K., Dracos, M., Drees, J., Dris, M., Duperrin, A., Durand, J.D., Eigen, G., Ekelof, T., Ekspong, G., Ellert, M., Elsing, M., Engel, J.P., Erzen, B., Espirito Santo, M., Falk, E., Fanourakis, G., Fassouliotis, D., Fayot, J., Feindt, M., Ferrari, P., Ferrer, A., Ferrer-Ribas, E., Ferro, F., Fichet, S., Firestone, A., Flagmeyer, U., Foeth, H., Fokitis, E., Fontanelli, F., Franek, B., Frodesen, A.G., Fruhwirth, R., Fulda-Quenzer, F., Fuster, J., Galloni, A., Gamba, D., Gamblin, S., Gandelman, M., Garcia, C., Gaspar, C., Gaspar, M., Gasparini, U., Gavillet, P., Gazis, E.N., Gele, D., Gerdyukov, L., Ghodbane, N., Gil, I., Glege, F., Gokieli, R., Golob, B., Gomez-Ceballos, G., Goncalves, P., Gonzalez Caballero, I., Gopal, G., Gorn, L., Gorski, M., Guz, Yu., Gracco, V., Grahl, J., Graziani, E., Green, C., Grimm, H.J., Gris, P., Grosdidier, G., Grzelak, K., Gunther, M., Guy, J., Hahn, F., Hahn, S., Haider, S., Hallgren, A., Hamacher, K., Hansen, J., Harris, F.J., Hedberg, V., Heising, S., Hernandez, J.J., Herquet, P., Herr, H., Hessing, T.L., Heuser, J.M., Higon, E., Holmgren, S.O., Holt, P.J., Hoorelbeke, S., Houlden, M., Hrubec, J., Huet, K., Hughes, G.J., Hultqvist, K., Jackson, J.N., Jacobsson, R., Jalocha, P., Janik, R., Jarlskog, C., Jarlskog, G., Jarry, P., Jean-Marie, B., Johansson, E.K., Jonsson, P., Joram, C., Juillot, P., Kapusta, F., Karafasoulis, K., Katsanevas, S., Katsoufis, E.C., Keranen, R., Kersevan, B.P., Khomenko, B.A., Khovansky, N.N., Kiiskinen, A., King, B., Kinvig, A., Kjaer, N.J., Klapp, O., Klein, H., Kluit, P., Kokkinias, P., Koratzinos, M., Kostyukhin, V., Kourkoumelis, C., Kuznetsov, O., Krammer, M., Kriznic, E., Krstic, J., Krumshtein, Z., Kubinec, P., Kurowska, J., Kurvinen, K., Lamsa, J.W., Lane, D.W., Langefeld, P., Lapin, V., Laugier, J.P., Lauhakangas, R., Leder, G., Ledroit, F., Lefebure, V., Leinonen, L., Leisos, A., Leitner, R., Lenzen, G., Lepeltier, V., Lesiak, T., Lethuillier, M., Libby, J., Liko, D., Lipniacka, A., Lippi, I., Lorstad, B., Loken, J.G., Lopes, J.H., Lopez, J.M., Lopez-Fernandez, R., Loukas, D., Lutz, P., Lyons, L., MacNaughton, J., Mahon, J.R., Maio, A., Malek, A., Malmgren, T.G.M., Maltezos, S., Malychev, V., Mandl, F., Marco, J., Marco, R., Marechal, B., Margoni, M., Marin, J.C., Mariotti, C., Markou, A., Martinez-Rivero, C., Martinez-Vidal, F., Marti, I Garcia S., Masik, J., Mastroyiannopoulos, N., Matorras, F., Matteuzzi, C., Matthiae, G., Mazzucato, F., Mazzucato, M., McCubbin, M., McKay, R., McNulty, R., McPherson, G., Meroni, C., Meyer, W.T., Myagkov, A., Migliore, E., Mirabito, L., Mjornmark, U., Moa, T., Moch, M., Moller, R., Monig, K., Monge, M.R., Moreau, X., Morettini, P., Morton, G., Muller, U., Munich, K., Mulders, M., Mulet-Marquis, C., Muresan, R., Murray, W.J., Muryn, B., Myatt, G., Myklebust, T., Naraghi, F., Nassiakou, M., Navarria, F.L., Navas, S., Nawrocki, K., Negri, P., Nemecek, S., Neufeld, N., Neumeister, N., Nicolaidou, R., Nielsen, B.S., Nikolenko, M., Nomokonov, V., Normand, A., Nygren, A., Obraztsov, V., Olshevsky, A.G., Onofre, A., Orava, R., Orazi, G., Osterberg, K., Ouraou, A., Paganoni, M., Paiano, S., Pain, R., Paiva, R., Palacios, J., Palka, H., Papadopoulou, T.D., Papageorgiou, K., Pape, L., Parkes, C., Parodi, F., Parzefall, U., Passeri, A., Passon, O., Pegoraro, M., Peralta, L., Pernicka, M., Perrotta, A., Petridou, C., Petrolini, A., Phillips, H.T., Pierre, F., Pimenta, M., Piotto, E., Podobnik, T., Pol, M.E., Polok, G., Poropat, P., Pozdnyakov, V., Privitera, P., Pukhaeva, N., Pullia, A., Radojicic, D., Ragazzi, S., Rahmani, H., Ratoff, P.N., Read, A.L., Rebecchi, P., Redaelli, N.G., Regler, M., Reid, D., Reinhardt, R., Renton, P.B., Resvanis, L.K., Richard, F., Ridky, J., Rinaudo, G., Rohne, O., Romero, A., Ronchese, P., Rosenberg, E.I., Rosinsky, P., Roudeau, P., Rovelli, T., Royon, C., Ruhlmann-Kleider, V., Ruiz, A., Saarikko, H., Sacquin, Y., Sadovsky, A., Sajot, G., Salt, J., Sampsonidis, D., Sannino, M., Schneider, H., Schwemling, P., Schwering, B., Schwickerath, U., Schyns, M.A.E., Scuri, F., Seager, P., Sedykh, Yu., Segar, A.M., Sekulin, R., Shellard, R.C., Sheridan, A., Siebel, M., Simard, L., Simonetto, F., Sisakian, A.N., Smadja, G., Smirnov, N., Smirnova, O., Smith, G.R., Solovyanov, O., Sopczak, A., Sosnowski, R., Spassoff, T., Spiriti, E., Sponholz, P., Squarcia, S., Stanescu, C., Stanic, S., Stevenson, K., Stocchi, A., Strauss, J., Strub, R., Stugu, B., Szczekowski, M., Szeptycka, M., Tabarelli, T., Tegenfeldt, F., Terranova, F., Thomas, J., Timmermans, J., Tinti, N., Tkachev, L.G., Todorova, S., Tomaradze, A., Tome, B., Tonazzo, A., Tortora, L., Transtromer, G., Treille, D., Tristram, G., Trochimczuk, M., Troncon, C., Tsirou, A., Turluer, M.L., Tyapkin, I.A., Tzamarias, S., Ullaland, O., Uvarov, V., Valenti, G., Vallazza, E., Van Apeldoorn, G.W., Van Dam, P., Van Eldik, J., Van Lysebetten, A., Van Remortel, N., Van Vulpen, I., Vassilopoulos, N., Vegni, G., Ventura, L., Venus, W., Verbeure, F., Verlato, M., Vertogradov, L.S., Verzi, V., Vilanova, D., Vitale, L., Vlasov, E., Vodopyanov, A.S., Vollmer, C., Voulgaris, G., Vrba, V., Wahlen, H., Walck, C., Weiser, C., Wicke, D., Wickens, J.H., Wilkinson, G.R., Winter, M., Witek, M., Wolf, G., Yi, J., Yushchenko, O., Zalewska, A., Zalewski, P., Zavrtanik, D., Zevgolatakos, E., Zimin, N.I., Zucchelli, G.C., Zumerle, G., Institut de Physique Nucléaire de Lyon (IPNL), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de l'Accélérateur Linéaire (LAL), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), Institut de Recherches Subatomiques (IReS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Cancéropôle du Grand Est-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Physique Corpusculaire et Cosmologie - Collège de France (PCC), Collège de France (CdF)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Centre de Physique des Particules de Marseille (CPPM), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Aix Marseille Université (AMU), and DELPHI
Subjects: High Energy Physics::Phenomenology, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], High Energy Physics::Experiment, Nuclear Experiment
Abstract: The probability $P(c \rightarrow D^{*+})$ that a charm quark fragments into a $D^{*+}$ meson and the $c \rightarrow l^+$ semileptonic branching fraction were measured in $Z^0\ $ decay into $c\bar{c}$ events. \par % A double tag method based % on the detection of exclusively reconstructed $D$ mesons % accompanied by a slow pion or a lepton in the opposite hemisphere was used.\par From the analysis of 3.5 Million $Z^0\ $ events collected from 1992 to 1995, a sample of charm meson decays with $81\%$ $c\bar{c}$ purity was selected. % In this sample, a signal of $2371\pm140$ low momentum pions % originating from a $D^{*\pm}$ decay in the opposite hemisphere % was observed. The product of the $c \rightarrow D^{*+}$ fragmentation probability times the $D^{*+}\rightarrow D^0\pi^+$ branching fraction was measured to be: \begin{eqnarray*} P(c \rightarrow D^{*+})\cdot BR(D^{*+}\rightarrow D^0\pi^+) = 0.174\pm0.010(stat) \pm0.004(syst) \; . \end{eqnarray*} Using the world averaged value for $BR(D^{*+}\rightarrow D^0\pi^+)$, the fragmentation probability is inferred: \begin{eqnarray*} P(c \rightarrow D^{*+}) = 0.255\pm0.015(stat) \pm0.006(syst) \pm0.005 (syst.BR) \; . \end{eqnarray*} From the same sample, $1828\pm 51$ identified leptons in the opposite hemisphere were selected. From this sample, the charm semileptonic branching fraction was measured to be: \begin{eqnarray*} BR(c \rightarrow l^+) = 0.0958\pm0.0042(stat) \pm0.0028(syst) \; . \end{eqnarray*}
Published: 2000

44. Study of bs 0-b̄̄s 0 oscillations and bs 0 lifetimes using hadronic decays of bs 0 mesons

Author: 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. 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. Bertini, D. Bertrand, D. Besancon, M. Bigi, M. Bilenky, M.S. Bizouard, M.-A. Bloch, D. Blom, H.M. Bonesini, M. Bonivento, W. Boonekamp, M. Booth, P.S.L. Borgland, A.W. 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. Brenke, T. Brenner, R.A. Bruckman, P. Brunet, J.-M. Bugge, L. Buran, T. Burgsmueller, 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. Chabaud, V. Charpentier, P. Chaussard, L. 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. Cossutti, F. Crawley, H.B. Crennell, D. Crepe, S. Crosetti, G. Cuevas Maestro, J. Czellar, S. Davenport, M. Da Silva, W. Deghorain, A. Della Ricca, G. Delpierre, P. Demaria, N. De Angelis, A. De Boer, W. De Clercq, C. De Lotto, B. De Min, A. De Paula, L. Dijkstra, H. Di Ciaccio, L. Dolbeau, J. Doroba, K. Dracos, M. Drees, J. Dris, M. Duperrin, A. Durand, J.-D. Eigen, G. Ekelof, T. Ekspong, G. Ellert, M. Elsing, M. Engel, J.-P. Espirito Santo, M. Fanourakis, G. Fassouliotis, D. Fayot, J. Feindt, M. Fenyuk, A. Ferrari, P. Ferrer, A. Ferrer-Ribas, E. Ferro, F. Fichet, S. Firestone, A. Flagmeyer, U. Foeth, H. Fokitis, E. Fontanelli, F. Franek, B. Frodesen, A.G. Fruhwirth, R. Fulda-Quenzer, F. Fuster, J. Galloni, A. Gamba, D. Gamblin, S. Gandelman, M. Garcia, C. Gaspar, C. Gaspar, M. Gasparini, U. Gavillet, P. Gazis, E.N. Gele, D. Ghodbane, N. Gil, I. Glege, F. Gokieli, R. Golob, B. Gomez-Ceballos, G. Goncalves, P. Gonzalez Caballero, I. Gopal, G. Gorn, L. Gouz, Y. Gracco, V. Grahl, J. Graziani, E. Grimm, H.-J. Gris, P. Grosdidier, G. Grzelak, K. Gunther, M. Guy, J. Hahn, F. Hahn, S. Haider, S. Hallgren, A. Hamacher, K. Hansen, J. Harris, F.J. Hedberg, V. Heising, S. Hernandez, J.J. Herquet, P. Herr, H. Hessing, T.L. Heuser, J.-M. Higon, E. Holmgren, S.-O. Holt, P.J. Hoorelbeke, S. Houlden, M. Hrubec, J. Huet, K. Hughes, G.J. Hultqvist, K. Jackson, J.N. Jacobsson, R. Jalocha, P. Janik, R. Jarlskog, C. Jarlskog, G. Jarry, P. Jean-Marie, B. Jeans, D. Johansson, E.K. Jonsson, P. Joram, C. Juillot, P. Kapusta, F. Karafasoulis, K. Katsanevas, S. Katsoufis, E.C. Keranen, R. Kernel, G. Kersevan, B.P. Khomenko, B.A. Khovanski, N.N. Kiiskinen, A. King, B. Kinvig, A. Kjaer, N.J. Klapp, O. Klein, H. Kluit, P. Kokkinias, P. Koratzinos, M. Kostioukhine, V. Kourkoumelis, C. Kouznetsov, O. Krammer, M. Kriznic, E. Krumstein, Z. Kubinec, P. Kurowska, J. Kurvinen, K. Lamsa, J.W. Lane, D.W. Langefeld, P. Lapin, V. Laugier, J.-P. Lauhakangas, R. Leder, G. Ledroit, F. Lefebure, V. Leinonen, L. Leisos, A. Leitner, R. Lemonne, J. Lenzen, G. Lepeltier, V. Lesiak, T. Lethuillier, M. Libby, J. Liko, D. Lipniacka, A. Lippi, I. Loerstad, B. Loken, J.G. Lopes, J.H. Lopez, J.M. Lopez-Fernandez, R. Loukas, D. Lutz, P. Lyons, L. Macnaughton, J. Mahon, J.R. Maio, A. Malek, A. Malmgren, T.G.M. Maltezos, S. Malychev, V. Mandl, F. Marco, J. Marco, R. Marechal, B. Margoni, M. Marin, J.-C. Mariotti, C. Markou, A. Martinez-Rivero, C. Martinez-Vidal, F. Marti I Garcia, S. Masik, J. Mastroyiannopoulos, N. Matorras, F. Matteuzzi, C. Matthiae, G. Mazzucato, F. Mazzucato, M. Mc Cubbin, M. Mc Kay, R. Mc Nulty, R. Mc Pherson, G. Meroni, C. Meyer, W.T. Miagkov, A. Migliore, E. Mirabito, L. Mitaroff, W.A. Mjoernmark, U. Moa, T. Moch, M. Moeller, R. Moenig, K. Monge, M.R. Moreau, X. Morettini, P. Morton, G. Mueller, U. Muenich, K. Mulders, M. Mulet-Marquis, C. Muresan, R. Murray, W.J. Muryn, B. Myatt, G. Myklebust, T. Naraghi, F. Nassiakou, M. Navarria, F.L. Navas, S. Nawrocki, K. Negri, P. Neufeld, N. Nicolaidou, R. Nielsen, B.S. Niezurawski, P. Nikolenko, M. Nomokonov, V. Nygren, A. Obraztsov, V. Olshevski, A.G. Onofre, A. Orava, R. Orazi, G. Osterberg, K. Ouraou, A. Paganoni, M. Paiano, S. Pain, R. Paiva, R. Palacios, J. Palka, H. Papadopoulou, T. Papageorgiou, K. Pape, L. Parkes, C. Parodi, F. Parzefall, U. Passeri, A. Passon, O. Pavel, T. Pegoraro, M. Peralta, L. Pernicka, M. Perrotta, A. Petridou, C. Petrolini, A. Phillips, H.T. Pierre, F. Pimenta, M. Piotto, E. Podobnik, T. Pol, M.E. Polok, G. Poropat, P. Pozdniakov, V. Privitera, P. Pukhaeva, N. Pullia, A. Radojicic, D. Ragazzi, S. Rahmani, H. Rames, J. Ratoff, P.N. Read, A.L. Rebecchi, P. Redaelli, N.G. Regler, M. Reid, D. Reinhardt, R. Renton, P.B. Resvanis, L.K. Richard, F. Ridky, J. Rinaudo, G. Rohne, O. Romero, A. Ronchese, P. Rosenberg, E.I. Rosinsky, P. Roudeau, P. Rovelli, T. Royon, C. Ruhlmann-Kleider, V. Ruiz, A. Saarikko, H. Sacquin, Y. Sadovsky, A. Sajot, G. Salt, J. Sampsonidis, D. Sannino, M. Schneider, H. Schwemling, P. Schwering, B. Schwickerath, U. Scuri, F. Seager, P. Sedykh, Y. Segar, A.M. Sekulin, R. Shellard, R.C. Siebel, M. Simard, L. Simonetto, F. Sisakian, A.N. Smadja, G. Smirnov, N. Smirnova, O. Smith, G.R. Sokolov, A. Sopczak, A. Sosnowski, R. Spassov, T. Spiriti, E. Sponholz, P. Squarcia, S. Stanescu, C. Stanic, S. Stevenson, K. Stocchi, A. Strauss, J. Strub, R. Stugu, B. Szczekowski, M. Szeptycka, M. Tabarelli, T. Taffard, A. Tegenfeldt, F. Terranova, F. Thomas, J. Timmermans, J. Tinti, N. Tkatchev, L.G. Tobin, M. Todorova, S. Tomaradze, A. Tome, B. Tonazzo, A. Tortora, L. Tortosa, P. Transtromer, G. Treille, D. Tristram, G. Trochimczuk, M. Troncon, C. Tsirou, A. Turluer, M.-L. Tyapkin, I.A. Tzamarias, S. Ullaland, O. Uvarov, V. Valenti, G. Vallazza, E. Vander Velde, C. Van Apeldoorn, G.W. Van Dam, P. Van Den Boeck, W. Van Doninck, W.K. Van Eldik, J. Van Lysebetten, A. Van Remortel, N. Van Vulpen, I. Vegni, G. Ventura, L. Venus, W. Verbeure, F. Verlato, M. Vertogradov, L.S. Verzi, V. Vilanova, D. Vitale, L. Vlasov, E. Vodopyanov, A.S. Vollmer, C. Voulgaris, G. Vrba, V. Wahlen, H. Walck, C. Washbrook, A.J. Weiser, C. Wicke, D. Wickens, J.H. Wilkinson, G.R. Winter, M. Witek, M. Wolf, G. Yi, J. Yushchenko, O. Zalewska, A. Zalewski, P. Zavrtanik, D. Zevgolatakos, E. Zimin, N.I. Zintchenko, A. Zucchelli, G.C. Zumerle, G. The DELPHI Collaboration
Abstract: Oscillations of Bs mesons have been studied in samples selected from about 3.5 million hadronic Z decays detected by DELPHI between 1992 and 1995. One analysis uses events in the exclusive decay channels: (Formula Presented),where the D decays are completely reconstructed. In addition,Bs 0-B̄̄s 0 oscillations have been studied in events with an exclusivelyreconstructed Ds accompanied in the same hemisphere bya high momentum hadron of opposite charge. Combining the two analyses,a limit on the mass difference between the physical Bs states has been obtained: ∆mB0s > 4.0 ps−1 at the 95% C.L. with a sensitivityof ∆mB0s = 3.2 ps−1. Using the latter sample of events,the Bs lifetime has been measured and an upper limit on the decay width difference between the two physical Bs states has been obtained: (Formula Presented) The combination of these results with those obtained using Dsℓ∓ sample gives: ∆mB0s > 4.9 ps−1 at the 95% C.L. with a sensitivityof ∆mB0s = 8.7 ps−1. © Springer-Verlag 2000.
Published: 2000

45. Hadronization properties of b quarks compared to light quarks in $e^{+} e^{-} \to q\overline{q}$ from 183 to 200 GeV }

Author: Abreu, P., Blom, H.M., Boudinov, E., Kjaer, N.J., Kluit, P.M., Mulders, M.P., Reid, D.W., Timmermans, J.J.M., van Apeldoorn, G.W., van Dam, P.H.A., van Eldik, J.E., van Vulpen, I.B., and Delphi (IHEF, IoP, FNWI)
Published: 2000

46. A Precise Measurement of the $\tau$ Polarisation at LEP-1

Author: 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., Asman, B., Augustin, J.-E., Augustinus, A., Baillon, P., Bambade, P., Barao, F., Barbiellini, Guido, Barbier, R., Bardin, D.Yu., Barker, G., Baroncelli, A., Battaglia, M., Baubillier, M., Becks, K.H., Begalli, M., Behrmann, A., Beilliere, P., Belokopytov, Yu., Benekos, N.C., Benvenuti, A.C., Berat, C., Berggren, M., Bertini, D., Bertrand, D., Besancon, M., Bigi, M., Bilenkii, M.S., Bizouard, M.A., Bloch, D., Blom, H.M., Bonesini, M., Bonivento, W., Boonekamp, M., Booth, P.S.L., Borgland, A.W., 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., Chabaud, V., Charpentier, P., Chaussard, L., Checchia, P., Chelkov, G.A., Chierici, R., Shlyapnikov, P., Chochula, P., Chorowicz, V., Chudoba, J., Cieslik, K., Collins, P., Contri, R., Cortina, E., Cosme, G., Cossutti, F., Crawley, H.B., Crennell, D., Crepe, S., Crosetti, G., Cuevas Maestro, J., Czellar, S., Davenport, M., Da Silva, W., Della Ricca, G., Delpierre, P.A., Demaria, N., De Angelis, A., De Boer, W., De Brabandere, S., De Clercq, C., De Lotto, B., De Min, A., De Paula, L., Dijkstra, H., Di Ciaccio, L., Dolbeau, J., Doroba, K., Dracos, M., Drees, J., Dris, M., Duperrin, A., Durand, J.D., Eigen, G., Ekelof, T., Ekspong, G., Ellert, M., Elsing, M., Engel, J.P., Espirito Santo, M., Fanourakis, G., Fassouliotis, D., Fayot, J., Feindt, M., Fenyuk, A., Ferrari, P., Ferrer, A., Ferrer-Ribas, E., Ferro, F., Fichet, S., Firestone, A., Flagmeyer, U., Foeth, H., Fokitis, E., Fontanelli, F., Franek, B., Frodesen, A.G., Fulda-Quenzer, F., Fuster, J., Galloni, A., Gamba, D., Gamblin, S., Gandelman, M., Garcia, C., Gaspar, C., Gaspar, M., Gasparini, U., Gavillet, P., Gazis, E.N., Gele, D., Gerdyukov, L., Ghodbane, N., Gil, I., Glege, F., Gokieli, R., Golob, B., Gomez-Ceballos, G., Goncalves, P., Gonzalez Caballero, I., Gopal, G., Gorn, L., Guz, Yu., Gracco, V., Grahl, J., Graziani, E., Gris, P., Grosdidier, G., Grzelak, K., Guy, J., Hahn, F., Hahn, S., Haider, S., Hallgren, A., Hamacher, K., Hansen, J., Harris, F.J., Hedberg, V., Heising, S., Hernandez, J.J., Herquet, P., Herr, H., Hessing, T.L., Heuser, J.M., Higon, E., Holmgren, S.O., Holt, P.J., Hoorelbeke, S., Houlden, M., Hrubec, J., Huber, M., Huet, K., Hughes, G.J., Hultqvist, K., Jackson, J.N., Jacobsson, R., Jalocha, P., Janik, R., Jarlskog, C., Jarlskog, G., Jarry, P., Jean-Marie, B., Jeans, D., Johansson, E.K., Jonsson, P., Joram, C., Juillot, P., Jungermann, L., Kapusta, F., Karafasoulis, K., Katsanevas, S., Katsoufis, E.C., Keranen, R., Kernel, G., Kersevan, B.P., Khomenko, B.A., Khovanskii, N.N., Kiiskinen, A., King, B., Kinvig, A., Kjaer, N.J., Klapp, O., Klein, H., Kluit, P., Kokkinias, P., Kostyukhin, V., Kourkoumelis, C., Kuznetsov, O., Krammer, M., Kriznic, E., Krstic, J., Krumshtein, Z., Kubinec, P., Kurowska, J., Kurvinen, K., Lamsa, J.W., Lane, D.W., Lapin, V., Laugier, J.P., Lauhakangas, R., Leder, G., Ledroit, F., Lefebure, V., Leinonen, L., Leisos, A., Leitner, R., Lenzen, G., Lepeltier, V., Lesiak, T., Lethuillier, M., Libby, J., Liebig, W., Liko, D., Lipniacka, A., Lippi, I., Loerstad, B., Loken, J.G., Lopes, J.H., Lopez, J.M., Lopez-Fernandez, R., Loukas, D., Lutz, P., Lyons, L., MacNaughton, J., Mahon, J.R., Maio, A., Malek, A., Malmgren, T.G.M., Maltezos, S., Malychev, V., Mandl, F., Marco, J., Marco, R., Marechal, B., Margoni, M., Marin, J.C., Mariotti, C., Markou, A., Martinez-Rivero, C., Martinez-Vidal, F., Marti, I Garcia S., Masik, J., Mastroyiannopoulos, N., Matorras, F., Matteuzzi, C., Matthiae, G., Mazzucato, F., Mazzucato, M., McCubbin, M., McKay, R., McNulty, R., McPherson, G., Meroni, C., Meyer, W.T., Myagkov, A., Migliore, E., Mirabito, L., Mitaroff, W.A., Mjornmark, U., Moa, T., Moch, M., Moller, R., Monig, K., Monge, M.R., Moraes, D., Moreau, X., Morettini, P., Morton, G., Mueller, U., Muenich, K., Mulders, M., Mulet-Marquis, C., Muresan, R., Murray, W.J., Muryn, B., Myatt, G., Myklebust, T., Naraghi, F., Nassiakou, M., Navarria, F.L., Navas, S., Nawrocki, K., Negri, P., Neufeld, N., Nicolaidou, R., Nielsen, B.S., Niezurawski, P., Nikolenko, M., Nomokonov, V., Nygren, A., Obraztsov, V.F., Olshevskii, A.G., Onofre, A., Orava, R., Orazi, G., Osterberg, K., Ouraou, A., Paganoni, M., Paiano, S., Pain, R., Paiva, R., Palacios, J., Palka, H., Papadopoulou, T.D., Papageorgiou, K., Pape, L., Parkes, C., Parodi, F., Parzefall, U., Passeri, A., Passon, O., Pavel, T., Pegoraro, M., Peralta, L., Pernicka, M., Perrotta, A., Petridou, C., Petrolini, A., Phillips, H.T., Pierre, F., Pimenta, M., Piotto, E., Podobnik, T., Pol, M.E., Polok, G., Polycarpo, E., Poropat, P., Pozdnyakov, V., Privitera, P., Pukhaeva, N., Pullia, A., Radojicic, D., Ragazzi, S., Rahmani, H., Rames, J., Ratoff, P.N., Read, A.L., Rebecchi, P., Redaelli, N.G., Regler, M., Rehn, J., Reid, D., Reinhardt, R., Renton, P.B., Resvanis, L.K., Richard, F., Ridky, J., Rinaudo, G., Ripp-Baudot, I., Rohne, O., Romero, A., Ronchese, P., Rosenberg, E.I., Rosinsky, P., Roudeau, P., Rovelli, T., Royon, C., Ruhlmann-Kleider, V., Ruiz, A., Saarikko, H., Sacquin, Y., Sadovskii, A., Sajot, G., Salt, J., Sampsonidis, D., Sannino, M., Schwemling, P., Schwering, B., Schwickerath, U., Scuri, F., Seager, P., Sedykh, Yu., Segar, A.M., Seibert, N., Sekulin, R., Shellard, R.C., Siebel, M., Simard, L., Simonetto, F., Sissakian, A.N., Smadja, G., Smirnov, N., Smirnova, O., Smith, G.R., Sopczak, A., Sosnowski, R., Spassoff, Tz., Spiriti, E., Squarcia, S., Stanescu, C., Stanic, S., Stanitzki, M., Stevenson, K., Stocchi, A., Strauss, J., Strub, R., Stugu, B., Szczekowski, M., Szeptycka, M., Tabarelli De Fatis, T., Taffard, A., Tegenfeldt, F., Terranova, F., Thomas, J., Timmermans, J., Tinti, N., Tkatchev, L.G., Tobin, M., Todorova, S., Tomaradze, A.G., Tome, B., Tonazzo, A., Tortora, L., Tortosa, Pablo, Transtromer, G., Treille, D., Tristram, G., Trochimczuk, M., Troncon, C., Turluer, M.L., Tyapkin, I.A., Tzamarias, S., Ullaland, O., Uvarov, V., Valenti, G., Vallazza, E., Van Dam, P., Vanden Boeck, W., Van Doninck, W.K., Van Eldik, J., Van Lysebetten, A., Van Remortel, N., Van Vulpen, I., Vegni, G., Ventura, L., Venus, W., Verbeure, F., Verlato, M., Vertogradov, L.S., Verzi, V., Vilanova, D., Vitale, L., Vlasov, E., Vodopyanov, A., Voulgaris, G., Vrba, V., Wahlen, H., Walck, C., Washbrook, A.J., Weiser, C., Wicke, D., Wickens, J.H., Wilkinson, G.R., Winter, M., Witek, M., Wolf, G., Yi, J., Yushchenko, O., Zalewska, A., Zalewski, P., Zavrtanik, D., Zevgolatakos, E., Zimin, N.I., Zintchenko, A., Zoller, P., Zucchelli, G.C., Zumerle, G., Institut de Physique Nucléaire de Lyon (IPNL), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Laboratoire de l'Accélérateur Linéaire (LAL), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), Institut de Recherches Subatomiques (IReS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Cancéropôle du Grand Est-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Physique Corpusculaire et Cosmologie - Collège de France (PCC), Collège de France (CdF (institution))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Centre de Physique des Particules de Marseille (CPPM), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), DELPHI, BARBIELLINI AMIDEI, Guido, Cossutti, F., DELLA RICCA, Giuseppe, Poropat, Paolo, Vitale, Lorenzo, Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), Collège de France (CdF)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Aix Marseille Université (AMU), UCL - SST/IRMP - Institut de recherche en mathématique et physique, Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS), DEPHI Collaboration, and Delphi (IHEF, IoP, FNWI)
Subjects: Particle physics, COLLISIONS, scientific information, POLARIZATION, Physics and Astronomy (miscellaneous), LUND MONTE-CARLO, ENERGIES, Electron–positron annihilation, Hadron, 01 natural sciences, Computer Science::Digital Libraries, DECAYS, Partícules (Física nuclear), information, PHYSICS, NEUTRINO HELICITY, BHABHA SCATTERING, Open Access, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], RADIATIVE-CORRECTIONS, Computer Science::Symbolic Computation, 010306 general physics, Engineering (miscellaneous), MICHEL PARAMETERS, Bhabha scattering, DELPHI, Physics, 010308 nuclear & particles physics, communication, High Energy Physics::Phenomenology, epistemology, Weinberg angle, Polarization (waves), LARGE ELECTRON POSITRON COLLIDER, PARTICLE PHYSICS, Michel parameters, Angular dependence, Física nuclear, High Energy Physics::Experiment, Particle Physics - Experiment, Open Society Institute, Lepton
Abstract: The $\tau$ polarisation has been studied with the ${\rm e^+e^-}\to \tau^+\tau^-$ data collected by the DELPHI detector at LEP in 1993, 1994 and 1995 around the Z resonance firstly through the exclusive decay channels ${\rm e}\nu\bar{\nu}$ , $\mu\nu\bar{\nu}$ , $\pi\nu$ , $\rho\nu$ and ${\rm a}_1\nu$ and secondly with an inclusive hadronic analysis which benefits from a higher efficiency and a better systematic precision. The results have been combined with those previously published on 1990 to 1992 DELPHI data, to produce results which reflect the full LEP-1 statistics. The fit of the $\tau$ polarisation dependence on the production angle yielded the polarisation parameters ${\cal A}_{_{\scriptstyle \!\tau}}=0.1359 \pm 0.0096$ and ${\cal A}_{_{\scriptstyle \!e}}=0.1382 \pm 0.0116$ . From these results the ratio of the vector and axial-vector effective couplings $\bar{v}_{\tau} / \bar{a}_{\tau} = 0.0683\pm0.0048$ and $\bar{v}_{\rm e} / \bar{a}_{\rm e} = 0.0694\pm0.0058$ have been derived, compatible with e $-\tau$ universality. With the assumption of lepton universality, the ratio of vector to axial-vector effective couplings for leptons $\bar{v}_l / \bar{a}_l = 0.0687\pm0.0037$ was obtained, implying a value of the effective weak mixing angle $\sin^{2}\theta^{\rm lept}_{\rm eff} = 0.23282\pm0.00092$ .
Published: 2000
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47. Charged and Identified Particles in the Hadronic Decay of W Bosons and in $e^{+} e^{-} \to q\overline{q}$ from 130 to 200 GeV

Author: Abreu, P., Adam, W., Adye, T., Adzic, P., 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., Anjos, N., Antilogus, P., Apel, W-D., Arnoud, Y., Asman, 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, Yu., Belous, K., Benekos, N.C., Benvenuti, A.C., Berat, C., Berggren, M., Bertrand, D., Besancon, M., Bigi, 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., M.Castillo Gimenez, V., Cattai, A., Cavallo, F.R., Chabaud, V., Chapkin, M., 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., Cossutti, F., Costa, M., Crawley, H.B., Crennell, D., Crepe, S., Crosetti, G., Cuevas Maestro, J., Czellar, S., Davenport, M., Da Silva, W., Della Ricca, G., Delpierre, P., Demaria, N., De Angelis, A., De Boer, W., De Clercq, C., De Lotto, B., De Min, A., De Paula, L., Dijkstra, H., Di Ciaccio, L., Dolbeau, J., Doroba, K., Dracos, M., Drees, J., Dris, M., Duperrin, A., Durand, J-D., Eigen, G., Ekelof, T., Ekspong, G., Ellert, M., Elsing, M., Engel, J-P., Espirito Santo, M., Fanourakis, G., Fassouliotis, D., Fayot, J., Feindt, M., Ferrer, A., Ferrer-Ribas, E., Ferro, F., Fichet, S., Firestone, A., Flagmeyer, U., Foeth, H., Fokitis, E., Fontanelli, F., Franek, B., Frodesen, A.G., Fruhwirth, R., Fulda-Quenzer, F., Fuster, J., Galloni, A., Gamba, D., Gamblin, S., Gandelman, M., Garcia, C., Gaspar, C., Gaspar, M., Gasparini, U., Gavillet, Ph., Gazis, E.N., Gele, D., Geralis, T., Ghodbane, N., Gil, I., Glege, F., Gokieli, R., Golob, B., Gomez-Ceballos, G., Goncalves, P., Gonzalez Caballero, I., Gopal, G., Gorn, L., Gouz, Yu., Gracco, V., Grahl, J., Graziani, E., Gris, P., Grosdidier, G., Grzelak, K., Guy, J., Haag, C., Hahn, F., Hahn, S., Haider, S., Hallgren, A., Hamacher, K., Hansen, J., Harris, F.J., Hauler, F., Hedberg, V., Heising, S., Hernandez, J.J., Herquet, P., Herr, H., Hessing, T.L., Heuser, J.M., Higon, E., Holmgren, S-O., Holt, P.J., Hoorelbeke, S., Houlden, M., Hrubec, J., Huber, M., Huet, K., Hughes, G.J., Hultqvist, K., Jackson, J.N., Jacobsson, R., Jalocha, P., Janik, R., Jarlskog, Ch., Jarlskog, G., Jarry, P., Jean-Marie, B., Jeans, D., Johansson, E.K., Jonsson, P., Joram, C., Juillot, P., Jungermann, L., Kapusta, F., Karafasoulis, K., Katsanevas, S., Katsoufis, E.C., Keranen, R., Kernel, G., Kersevan, B.P., Khokhlov, Yu., Khomenko, B.A., Khovanski, N.N., Kiiskinen, A., King, B., Kinvig, A., Kjaer, N.J., Klapp, O., Klein, H., Kluit, P., Kokkinias, P., Kostioukhine, V., Kourkoumelis, C., Kouznetsov, O., Krammer, M., Kriznic, E., Krumstein, Z., Kubinec, P., Kurowska, J., Kurvinen, K., Lamsa, J.W., Lane, D.W., Lapin, V., Laugier, J-P., Lauhakangas, R., Leder, G., Ledroit, F., Lefebure, V., Leinonen, L., Leisos, A., Leitner, R., Lemonne, J., Lenzen, G., Lepeltier, V., Lesiak, T., Lethuillier, M., Libby, J., Liebig, W., Liko, D., Lipniacka, A., Lippi, I., Loerstad, B., Loken, J.G., Lopes, J.H., Lopez, J.M., Lopez-Fernandez, R., Loukas, D., Lutz, P., Lyons, L., MacNaughton, J., Mahon, J.R., Maio, A., Malek, A., Malmgren, T.G.M., Maltezos, S., Malychev, V., Mandl, F., Marco, J., Marco, R., Marechal, B., Margoni, M., Marin, J-C., Mariotti, C., Markou, A., Martinez-Rivero, C., Marti i Garcia, S., Masik, J., Mastroyiannopoulos, N., Matorras, F., Matteuzzi, C., Matthiae, G., Mazzucato, F., Mazzucato, M., Cubbin, M.Mc, Kay, R.Mc, Nulty, R.Mc, Pherson, G.Mc, Meroni, C., Metreveli, Z., Meyer, W.T., Miagkov, A., Migliore, E., Mirabito, L., Mitaroff, W.A., Mjoernmark, U., Moa, T., Moch, M., Moeller, R., Moenig, K., Monge, M.R., Moraes, D., Moreau, X., Morettini, P., Morton, G., Mueller, U., Muenich, K., Mulders, M., Mulet-Marquis, C., Muresan, R., Murray, W.J., Muryn, B., Myatt, G., Myklebust, T., Naraghi, F., Nassiakou, M., Navarria, F.L., Nawrocki, K., Negri, P., Neufeld, N., Nicolaidou, R., Nielsen, B.S., Niezurawski, P., Nikolenko, M., Nomokonov, V., Nygren, A., Obraztsov, V., Olshevski, A.G., Onofre, A., Orava, R., Orazi, G., Osterberg, K., Ouraou, A., Oyanguren, A., Paganoni, M., Paiano, S., Pain, R., Paiva, R., Palacios, J., Palka, H., Papadopoulou, Th.D., Pape, L., Parkes, C., Parodi, F., Parzefall, U., Passeri, A., Passon, O., Pavel, T., Pegoraro, M., Peralta, L., Pernicka, M., Perrotta, A., Petridou, C., Petrolini, A., Phillips, H.T., Pierre, F., Pimenta, M., Piotto, E., Podobnik, T., Pol, M.E., Polok, G., Poropat, P., Pozdniakov, V., Privitera, P., Pukhaeva, N., Pullia, A., Radojicic, D., Ragazzi, S., Rahmani, H., Rames, J., Ratoff, P.N., Read, A.L., Rebecchi, P., Redaelli, N.G., Regler, M., Rehn, J., Reid, D., Reinertsen, P., Reinhardt, R., Renton, P.B., Resvanis, L.K., Richard, F., Ridky, J., Rinaudo, G., Ripp-Baudot, I., Rohne, O., Romero, A., Ronchese, P., Rosenberg, E.I., Rosinsky, P., Roudeau, P., Rovelli, T., Royon, Ch., Ruhlmann-Kleider, V., Ruiz, A., Saarikko, H., Sacquin, Y., Sadovsky, A., Sajot, G., Salt, J., Sampsonidis, D., Sannino, M., Schwemling, Ph., Schwering, B., Schwickerath, U., Scuri, F., Seager, P., Sedykh, Y., Segar, A.M., Seibert, N., Sekulin, R., Shellard, R.C., Siebel, M., Simard, L., Simonetto, F., Sisakian, A.N., Smadja, G., Smirnova, O., Smith, G.R., Solovianov, O., Sopczak, A., Sosnowski, R., Spassov, T., Spiriti, E., Squarcia, S., Stanescu, C., Stanic, S., Stanitzki, M., Stevenson, K., Stocchi, A., Strauss, J., Strub, R., Stugu, B., Szczekowski, M., Szeptycka, M., Tabarelli, T., Taffard, A., Tegenfeldt, F., Terranova, F., Thomas, J., Timmermans, J., Tinti, N., Tkatchev, L.G., Tobin, M., Todorova, S., Tomaradze, A., Tome, B., Tonazzo, A., Tortora, L., Tortosa, P., Transtromer, G., Treille, D., Tristram, G., Trochimczuk, M., Troncon, C., Turluer, M-L., Tyapkin, I.A., Tyapkin, P., Tzamarias, S., Ullaland, O., Uvarov, V., Valenti, G., Vallazza, E., Van Dam, P., Van den Boeck, W., Van Eldik, J., Van Lysebetten, A., van Remortel, N., Van Vulpen, I., Vegni, G., Ventura, L., Venus, W., Verbeure, F., Verdier, P., Verlato, M., Vertogradov, L.S., Verzi, V., Vilanova, D., Vitale, L., Vlasov, E., Vodopyanov, A.S., Voulgaris, G., Vrba, V., Wahlen, H., Walck, C., Washbrook, A.J., Weiser, C., Wicke, D., Wickens, J.H., Wilkinson, G.R., Winter, M., Witek, M., Wolf, G., Yi, J., Yushchenko, O., Zalewska, A., Zalewski, P., Zavrtanik, D., Zevgolatakos, E., Zimine, N.I., Zintchenko, A., Zoller, Ph., Zucchelli, G.C., Zumerle, G., Institut de Physique Nucléaire de Lyon (IPNL), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Laboratoire de l'Accélérateur Linéaire (LAL), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), Institut de Recherches Subatomiques (IReS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Cancéropôle du Grand Est-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Physique Corpusculaire et Cosmologie - Collège de France (PCC), Collège de France (CdF (institution))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Centre de Physique des Particules de Marseille (CPPM), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), DELPHI, Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), Collège de France (CdF)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Aix Marseille Université (AMU), and Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)
Subjects: [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], High Energy Physics::Experiment, Particle Physics - Experiment
Abstract: Inclusive distributions of charged particles in hadronic Wdecays are experimentally investigated using the statisticscollected by the DELPHI experiment at LEP during 1997, 1998and 1999, at centre-of-mass energies from 183 to around 200 GeV.The possible effects of interconnection betweenthe hadronic decays of two Ws are not observed.Measurements of the average multiplicity for charged and identified particles in q$\bar{\mathrm q}$ and WW events at centre-of-mass energies from 130 to 200 GeV and in W decays are presented.The results on the average multiplicity of identified particlesand on the position $\xi^*$ of the maximum of the maximum of$\xi_p = -\mathrm{log} (\frac{2p}{\sqrt{s}})$distribution are compared with predictionsof JETSET and MLLA calculations. Inclusive distributions of charged particles in hadronic W decays are experimentally investigated using the statistics collected by the DELPHI experiment at LEP during 1997, 1998 and 1999, at centre-of-mass energies from 183 to around 200 GeV. The possible effects of interconnection between the hadronic decays of two Ws are not observed. Measurements of the average multiplicity for charged and identified particles in q qbar and WW events at centre-of-mass energies from 130 to 200 GeV and in W decays are presented. The results on the average multiplicity of identified particles and on the position xi^* of the maximum of the xi_p = -log(2p/sqrt(s)) distribution are compared with predictions of JETSET and MLLA calculations.
Published: 2000
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48. A precise measurement of the τ polarisation at LEP-1

Author: 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. Asman, B. Augustin, J.-E. Augustinus, A. Baillon, P. 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. Bertini, D. Bertrand, D. Besancon, M. Bigi, M. Bilenky, M.S. Bizouard, M.-A. Bloch, D. Blom, H.M. Bonesini, M. Bonivento, W. Boonekamp, M. Booth, P.S.L. Borgland, A.W. 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. Chabaud, V. Charpentier, Ph. Chaussard, L. 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. Cossutti, F. Crawley, H.B. Crennell, D. Crepe, S. Crosetti, G. Cuevas Maestro, J. Czellar, S. Davenport, M. Da Silva, W. Della Ricca, G. Delpierre, P. Demaria, N. De Angelis, A. De Boer, W. de Brabandere, S. De Clercq, C. De Lotto, B. De Min, A. De Paula, L. Dijkstra, H. di Ciaccio, L. Dolbeau, J. Doroba, K. Dracos, M. Drees, J. Dris, M. Duperrin, A. Durand, J.-D. Eigen, G. Ekelof, T. Ekspong, G. Ellert, M. Elsing, M. Engel, J.-P. Espirito Santo, M. Fanourakis, G. Fassouliotis, D. Fayot, J. Feindt, M. Fenyuk, A. Ferrari, P. Ferrer, A. Ferrer-Ribas, E. Ferro, F. Fichet, S. Firestone, A. Flagmeyer, U. Foeth, H. Fokitis, E. Fontanelli, F. Franek, B. Frodesen, A.G. Fulda-Quenzer, F. Fuster, J. Galloni, A. Gamba, D. Gamblin, S. Gandelman, M. Garcia, C. Gaspar, C. Gaspar, M. Gasparini, U. Gavillet, Ph. Gazis, E.N. Gele, D. Gerdyukov, L. Ghodbane, N. Gil, I. Glege, F. Gokieli, R. Golob, B. Gomez-Ceballos, G. Goncalves, P. Gonzalez Caballero, I. Gopal, G. Gorn, L. Gouz, Y. Gracco, V. Grahl, J. Graziani, E. Gris, P. Grosdidier, G. Grzelak, K. Guy, J. Hahn, F. Hahn, S. Haider, S. Hallgren, A. Hamacher, K. Hansen, J. Harris, F.J. Hedberg, V. Heising, S. Hernandez, J.J. Herquet, P. Herr, H. Hessing, T.L. Heuser, J.-M. Higon, E. Holmgren, S.-O. Holt, P.J. Hoorelbeke, S. Houlden, M. Hrubec, J. Huber, M. Huet, K. Hughes, G.J. Hultqvist, K. Jackson, J.N. Jacobsson, R. Jalocha, P. Janik, R. Jarlskog, Ch. Jarlskog, G. Jarry, P. Jean-Marie, B. Jeans, D. Johansson, E.K. Jonsson, P. Joram, C. Juillot, P. Jungermann, L. Kapusta, F. Karafasoulis, K. Katsanevas, S. Katsoufis, E.C. Keranen, R. Kernel, G. Kersevan, B.P. Khomenko, B.A. Khovanski, N.N. Kiiskinen, A. King, B. Kinvig, A. Kjaer, N.J. Klapp, O. Klein, H. Kluit, P. Kokkinias, P. Kostioukhine, V. Kourkoumelis, C. Kouznetsov, O. Krammer, M. Kriznic, E. Krstic, J. Krumstein, Z. Kubinec, P. Kurowska, J. Kurvinen, K. Lamsa, J.W. Lane, D.W. Lapin, V. Laugier, J.-P. Lauhakangas, R. Leder, G. Ledroit, F. Lefebure, V. Leinonen, L. Leisos, A. Leitner, R. Lenzen, G. Lepeltier, V. Lesiak, T. Lethuillier, M. Libby, J. Liebig, W. Liko, D. Lipniacka, A. Lippi, I. Loerstad, B. Loken, J.G. Lopes, J.H. Lopez, J.M. Lopez-Fernandez, R. Loukas, D. Lutz, P. Lyons, L. MacNaughton, J. Mahon, J.R. Maio, A. Malek, A. Malmgren, T.G.M. Maltezos, S. Malychev, V. Mandl, F. Marco, J. Marco, R. Marechal, B. Margoni, M. Marin, J.-C. Mariotti, C. Markou, A. Martinez-Rivero, C. Martinez-Vidal, F. Marti i Garcia, S. Masik, J. Mastroyiannopoulos, N. Matorras, F. Matteuzzi, C. Matthiae, G. Mazzucato, F. Mazzucato, M. Mc Cubbin, M. Mc Kay, R. Mc Nulty, R. Mc Pherson, G. Meroni, C. Meyer, W.T. Miagkov, A. Migliore, E. Mirabito, L. Mitaroff, W.A. Mjoernmark, U. Moa, T. Moch, M. Moeller, R. Moenig, K. Monge, M.R. Moraes, D. Moreau, X. Morettini, P. Morton, G. Mueller, U. Muenich, K. Mulders, M. Mulet-Marquis, C. Muresan, R. Murray, W.J. Muryn, B. Myatt, G. Myklebust, T. Naraghi, F. Nassiakou, M. Navarria, F.L. Navas, S. Nawrocki, K. Negri, P. Neufeld, N. Nicolaidou, R. Nielsen, B.S. Niezurawski, P. Nikolenko, M. Nomokonov, V. Nygren, A. Obraztsov, V. Olshevski, A.G. Onofre, A. Orava, R. Orazi, G. Osterberg, K. Ouraou, A. Paganoni, M. Paiano, S. Pain, R. Paiva, R. Palacios, J. Palka, H. Papadopoulou, T.D. Papageorgiou, K. Pape, L. Parkes, C. Parodi, F. Parzefall, U. Passeri, A. Passon, O. Pavel, T. Pegoraro, M. Peralta, L. Pernicka, M. Perrotta, A. Petridou, C. Petrolini, A. Phillips, H.T. Pierre, F. Pimenta, M. Piotto, E. Podobnik, T. Pol, M.E. Polok, G. Polycarpo, E. Poropat, P. Pozdniakov, V. Privitera, P. Pukhaeva, N. Pullia, A. Radojicic, D. Ragazzi, S. Rahmani, H. Rames, J. Ratoff, P.N. Read, A.L. Rebecchi, P. Redaelli, N.G. Regler, M. Rehn, J. Reid, D. Reinhardt, R. Renton, P.B. Resvanis, L.K. Richard, F. Ridky, J. Rinaudo, G. Ripp-Baudot, I. Rohne, O. Romero, A. Ronchese, P. Rosenberg, E.I. Rosinsky, P. Roudeau, P. Rovelli, T. Royon, Ch. Ruhlmann-Kleider, V. Ruiz, A. Saarikko, H. Sacquin, Y. Sadovsky, A. Sajot, G. Salt, J. Sampsonidis, D. Sannino, M. Schwemling, Ph. Schwering, B. Schwickerath, U. Scuri, F. Seager, P. Sedykh, Y. Segar, A.M. Seibert, N. Sekulin, R. Shellard, R.C. Siebel, M. Simard, L. Simonetto, F. Sisakian, A.N. Smadja, G. Smirnov, N. Smirnova, O. Smith, G.R. Sopczak, A. Sosnowski, R. Spassov, T. Spiriti, E. Squarcia, S. Stanescu, C. Stanic, S. Stanitzki, M. Stevenson, K. Stocchi, A. Strauss, J. Strub, R. Stugu, B. Szczekowski, M. Szeptycka, M. Tabarelli, T. Taffard, A. Tegenfeldt, F. Terranova, F. Thomas, J. Timmermans, J. Tinti, N. Tkatchev, L.G. Tobin, M. Todorova, S. Tomaradze, A. Tome, B. Tonazzo, A. Tortora, L. Tortosa, P. Transtromer, G. Treille, D. Tristram, G. Trochimczuk, M. Troncon, C. Turluer, M.-L. Tyapkin, I.A. Tzamarias, S. Ullaland, O. Uvarov, V. Valenti, G. Vallazza, E. Van Dam, P. Van den Boeck, W. Van Doninck, W.K. Van Eldik, J. Van Lysebetten, A. van Remortel, N. Van Vulpen, I. Vegni, G. Ventura, L. Venus, W. Verbeure, F. Verlato, M. Vertogradov, L.S. Verzi, V. Vilanova, D. Vitale, L. Vlasov, E. Vodopyanov, A.S. Voulgaris, G. Vrba, V. Wahlen, H. Walck, C. Washbrook, A.J. Weiser, C. Wicke, D. Wickens, J.H. Wilkinson, G.R. Winter, M. Witek, M. Wolf, G. Yi, J. Yushchenko, O. Zalewska, A. Zalewski, P. Zavrtanik, D. Zevgolatakos, E. Zimin, N.I. Zintchenko, A. Zoller, Ph. Zucchelli, G.C. Zumerle, G.
Abstract: The τ polarisation has been studied with the e+e- → τ+τ- data collected by the DELPHI detector at LEP in 1993, 1994 and 1995 around the Z resonance firstly through the exclusive decay channels evv̄, μvvμ, πv, ρv, and a1v and secondly with an inclusive hadronic analysis which benefits from a higher efficiency and a better systematic precision. The results have been combined with those previously published on 1990 to 1992 DELPHI data, to produce results which reflect the full LEP-1 statistics. The fit of the τ polarisation dependence on the production angle yielded the polarisation parameters Aτ = 0.1359 ± 0.0096 and Ae = 0.1382 ± 0.0116. From these results the ratio of the vector and axial-vector effective couplings v̄τ/āτ = 0.0683 ± 0.0048 and v̄e/āe = 0.0694 ± 0.0058 have been derived, compatible with e-τ universality. With the assumption of lepton universality, the ratio of vector to axial-vector effective couplings for leptons v̄ι/āι = 0.0687 ± 0.0037 was obtained, implying a value of the effective weak mixing angle sin2 θlepteff= 0.23282 ± 0.00092.
Published: 2000

49. Measurements of the Z partial decay width into $c\overline{c}$ and multiplicity of charm quarks per b decay

Author: Abreu, P., Adam, W., Adye, T., Adzic, P., Azhinenko, 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., Asman, B., Augustin, J.-E., Augustinus, A., Baillon, P., Bambade, P., Barao, F., Barbiellini, Guido, Barbier, R., Bardin, D.Yu., Barker, G., Baroncelli, A., Battaglia, M., Baubillier, M., Becks, K.H., Begalli, M., Behrmann, A., Beilliere, P., Belokopytov, Yu., Benekos, N.C., Benvenuti, A.C., Berat, C., Berggren, M., Bertini, D., Bertrand, D., Besancon, M., Bigi, M., Bilenkii, M.S., Bizouard, M.A., Bloch, D., Blom, H.M., Bonesini, M., Bonivento, W., Boonekamp, M., Booth, P.S.L., Borgland, A.W., Borisov, G., Bosio, C., Botner, O., Boudinov, E., Bouquet, B., Bourdarios, C., Bowcock, T.J.V., Boyko, I., Bozovic, I., Bozzo, M., Branchini, P., Brenke, T., Brenner, R.A., Bruckman, P., Brunet, J.M., Bugge, L., Buran, T., Burgsmuller, 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., Chabaud, V., Charpentier, P., Chaussard, L., Checchia, P., Chelkov, G.A., Chierici, R., Shlyapnikov, P., Chochula, P., Chorowicz, V., Chudoba, J., Cieslik, K., Collins, P., Contri, R., Cortina, E., Cosme, G., Cossutti, F., Cowell, J.H., Crawley, H.B., Crennell, D., Crepe, S., Crosetti, G., Cuevas Maestro, J., Czellar, S., Davenport, M., Da Silva, W., Deghorain, A., Della Ricca, G., Delpierre, P., Demaria, N., De Angelis, A., De Boer, W., De Clercq, C., De Lotto, B., De Min, A., De Paula, L., Dijkstra, H., Di Ciaccio, L., Dolbeau, J., Doroba, K., Dracos, M., Drees, J., Dris, M., Duperrin, A., Durand, J.D., Eigen, G., Ekelof, T., Ekspong, G., Ellert, M., Elsing, M., Engel, J.P., Erzen, B., Espirito Santo, M., Falk, E., Fanourakis, G., Fassouliotis, D., Fayot, J., Feindt, M., Ferrari, P., Ferrer, A., Ferrer-Ribas, E., Ferro, F., Fichet, S., Firestone, A., Flagmeyer, U., Foeth, H., Fokitis, E., Fontanelli, F., Franek, B., Frodesen, A.G., Fruhwirth, R., Fulda-Quenzer, F., Fuster, J., Galloni, A., Gamba, D., Gamblin, S., Gandelman, M., Garcia, C., Gaspar, C., Gaspar, M., Gasparini, U., Gavillet, P., Gazis, E.N., Gele, D., Gerdyukov, L., Ghodbane, N., Gil, I., Glege, F., Gokieli, R., Golob, B., Gomez-Ceballos, G., Goncalves, P., Gonzalez Caballero, I., Gopal, G., Gorn, L., Gorski, M., Guz, Yu., Gracco, V., Grahl, J., Graziani, E., Green, C., Grimm, H.J., Gris, P., Grosdidier, G., Grzelak, K., Gunther, M., Guy, J., Hahn, F., Hahn, S., Haider, S., Hallgren, A., Hamacher, K., Hansen, J., Harris, F.J., Hedberg, V., Heising, S., Hernandez, J.J., Herquet, P., Herr, H., Hessing, T.L., Heuser, J.M., Higon, E., Holmgren, S.O., Holt, P.J., Hoorelbeke, S., Houlden, M., Hrubec, J., Huet, K., Hughes, G.J., Hultqvist, K., Jackson, J.N., Jacobsson, R., Jalocha, P., Janik, R., Jarlskog, C., Jarlskog, G., Jarry, P., Jean-Marie, B., Johansson, E.K., Jonsson, P., Joram, C., Juillot, P., Kapusta, F., Karafasoulis, K., Katsanevas, S., Katsoufis, E.C., Keranen, R., Kersevan, B.P., Khomenko, B.A., Khovansky, N.N., Kiiskinen, A., King, B., Kinvig, A., Kjaer, N.J., Klapp, O., Klein, H., Kluit, P., Kokkinias, P., Koratzinos, M., Kostyukhin, V., Kourkoumelis, C., Kuznetsov, O., Kriznic, E., Krstic, P., Krumshtein, Z., Kubinec, P., Kurowska, J., Kurvinen, K., Lamsa, J.W., Lane, D.W., Langefeld, P., Lapin, V., Laugier, J.P., Lauhakangas, R., Leder, G., Ledroit, F., Lefebure, V., Leinonen, L., Leisos, A., Leitner, R., Lemonne, J., Lenzen, G., Lepeltier, V., Lesiak, T., Lethuillier, M., Libby, J., Liko, D., Lipniacka, A., Lippi, I., Lorstad, B., Loken, J.G., Lopes, J.H., Lopez, J.M., Lopez-Fernandez, R., Loukas, D., Lutz, P., Lyons, L., MacNaughton, J., Mahon, J.R., Maio, A., Malek, A., Malmgren, T.G.M., Maltezos, S., Malychev, V., Mandl, F., Marco, J., Marco, R., Marechal, B., Margoni, M., Marin, J.C., Mariotti, C., Markou, A., Martinez-Rivero, C., Martinez-Vidal, F., Marti, I Garcia S., Masik, J., Mastroyiannopoulos, N., Matorras, F., Matteuzzi, C., Matthiae, G., Mazzucato, F., Mazzucato, M., McCubbin, M., McKay, R., McNulty, R., McPherson, G., Meroni, C., Meyer, W.T., Myagkov, A., Migliore, E., Mirabito, L., Mitaroff, W.A., Mjornmark, U., Moa, T., Moch, M., Moller, R., Monig, K., Monge, M.R., Moreau, X., Morettini, P., Morton, G., Muller, U., Munich, K., Mulders, M., Mulet-Marquis, C., Muresan, R., Murray, W.J., Muryn, B., Myatt, G., Myklebust, T., Naraghi, F., Nassiakou, M., Navarria, F.L., Navas, S., Nawrocki, K., Negri, P., Nemecek, S., Neufeld, N., Neumeister, N., Nicolaidou, R., Nielsen, B.S., Nikolenko, M., Nomokonov, V., Normand, A., Nygren, A., Obraztsov, V., Olshevsky, A.G., Onofre, A., Orava, R., Orazi, G., Osterberg, K., Ouraou, A., Paganoni, M., Paiano, S., Pain, R., Paiva, R., Palacios, J., Palka, H., Papadopoulou, T.D., Papageorgiou, K., Pape, L., Parkes, C., Parodi, F., Parzefall, U., Passeri, A., Passon, O., Pegoraro, M., Peralta, L., Pernicka, M., Perrotta, A., Petridou, C., Petrolini, A., Phillips, H.T., Pierre, F., Pimenta, M., Piotto, E., Podobnik, T., Pol, M.E., Polok, G., Poropat, P., Pozdnyakov, V., Privitera, P., Pukhaeva, N., Pullia, A., Radojicic, D., Ragazzi, S., Rahmani, H., Ratoff, P.N., Read, A.L., Rebecchi, P., Redaelli, N.G., Regler, M., Reid, D., Reinhardt, R., Renton, P.B., Resvanis, L.K., Richard, F., Ridky, J., Rinaudo, G., Rohne, O., Romero, A., Ronchese, P., Rosenberg, E.I., Rosinsky, P., Roudeau, P., Rovelli, T., Royon, C., Ruhlmann-Kleider, V., Ruiz, A., Saarikko, H., Sacquin, Y., Sadovsky, A., Sajot, G., Salt, J., Sampsonidis, D., Sannino, M., Schneider, Henri, Schwemling, P., Schwering, B., Schwickerath, U., Schyns, M.A.E., Scuri, F., Seager, P., Sedykh, Yu., Segar, A.M., Sekulin, R., Shellard, R.C., Sheridan, A., Siebel, M., Simard, L., Simonetto, F., Sisakian, A.N., Smadja, G., Smirnova, O., Smith, G.R., Sokolov, A., Sopczak, A., Sosnowski, R., Spassoff, T., Spiriti, E., Sponholz, P., Squarcia, S., Stanescu, C., Stanic, S., Stevenson, K., Stocchi, A., Strauss, J., Strub, R., Stugu, B., Szczekowski, M., Szeptycka, M., Tabarelli, T., Chikilev, O., Tegenfeldt, F., Terranova, F., Thomas, J., Timmermans, J., Tinti, N., Tkachev, L.G., Todorova, S., Tomaradze, A., Tome, B., Tonazzo, A., Tortora, L., Transtromer, G., Treille, D., Tristram, G., Trochimczuk, M., Troncon, C., Tsirou, A., Turluer, M.L., Tyapkin, I.A., Tzamarias, S., Ullaland, O., Uvarov, V., Valenti, G., Vallazza, E., Vander Velde, C., Van Apeldoorn, G.W., Van Dam, P., Van Doninck, W.K., Van Eldik, J., Van Lysebetten, A., Van Remortel, N., Van Vulpen, I., Vassilopoulos, N., Vegni, G., Ventura, Laurent, Venus, W., Verbeure, F., Verlato, M., Vertogradov, L.S., Verzi, V., Vilanova, D., Vitale, L., Vlasov, E., Vodopyanov, A.S., Vollmer, C., Voulgaris, G., Vrba, V., Wahlen, H., Walck, C., Weiser, C., Wicke, D., Wickens, J.H., Wilkinson, G.R., Winter, M., Witek, M., Wolf, G., Yi, J., Yushchenko, O., Zalewska, A., Zalewski, P., Zavrtanik, D., Zevgolatakos, E., Zimin, N.I., Zucchelli, G.C., Zumerle, G., Institut de Physique Nucléaire de Lyon (IPNL), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de l'Accélérateur Linéaire (LAL), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), Institut de Recherches Subatomiques (IReS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Cancéropôle du Grand Est-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Physique Corpusculaire et Cosmologie - Collège de France (PCC), Collège de France (CdF)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Centre de Physique des Particules de Marseille (CPPM), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Aix Marseille Université (AMU), DELPHI, Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), Collège de France (CdF (institution))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), and Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)
Subjects: Nuclear Theory, High Energy Physics::Phenomenology, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], High Energy Physics::Experiment, Nuclear Experiment, Particle Physics - Experiment
Abstract: The partial decay width $R_c$ of the $Z$ into $c\bar{c}$ quark pair and the number of charm quarks $n_c$ per $b$ decay are measured with the DELPHI detector at \mbox{LEP 1}. Particle identification provides clear $D^0$, $D^+$, $D_s^+$ and $\Lambda_c^+$ signatures. The charm hadron production rate is measured in each channel by a fit to the scaled energy, impact parameter information and the invariant mass spectrum. Two measurements of $R_c$ are presented, from the $D^{*+}$ production rate and from the overall charm counting, including strange charm baryon production, in $c\bar{c}$ events. The multiplicity $n_c$, which includes hidden $c\bar{c}$ and strange charm baryon production, is inferred from the charm counting in $b\bar{b}$ events. The final results are $R_c = 0.1665 \pm 0.0095$ and $n_c = 1.166 \pm 0.086$.
Published: 2000
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50. Measurements of the Z partial decay width into cc̄ and multiplicity of charm quarks per b decay

Author: 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. 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. Bertini, D. Bertrand, D. Besancon, M. Bigi, M. Bilenky, M.S. Bizouard, M.-A. Bloch, D. Blom, H.M. Bonesini, M. Bonivento, W. Boonekamp, M. Booth, P.S.L. Borgland, A.W. Borisov, G. Bosio, C. Botner, O. Boudinov, E. Bouquet, B. Bourdarios, C. Bowcock, T.J.V. Boyko, I. Bozovic, I. Bozzo, M. Branchini, P. Brenke, T. Brenner, R.A. Bruckman, P. Brunet, J.-M. Bugge, L. Buran, T. Burgsmueller, 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. Chabaud, V. Charpentier, Ph. Chaussard, L. 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. Cossutti, F. Cowell, J.-H. Crawley, H.B. Crennell, D. Crepe, S. Crosetti, G. Cuevas Maestro, J. Czellar, S. Davenport, M. da Silva, W. Deghorain, A. Della Ricca, G. Delpierre, P. Demaria, N. de Angelis, A. de Boer, W. de Clercq, C. de Lotto, B. de Min, A. de Paula, L. Dijkstra, H. di Ciaccio, L. Dolbeau, J. Doroba, K. Dracos, M. Drees, J. Dris, M. Duperrin, A. Durand, J.-D. Eigen, G. Ekelof, T. Ekspong, G. Ellert, M. Elsing, M. Engel, J.-P. Erzen, B. Espirito Santo, M. Falk, E. Fanourakis, G. Fassouliotis, D. Fayot, J. Feindt, M. Ferrari, P. Ferrer, A. Ferrer-Ribas, E. Ferro, F. Fichet, S. Firestone, A. Flagmeyer, U. Foeth, H. Fokitis, E. Fontanelli, F. Franek, B. Frodesen, A.G. Fruhwirth, R. Fulda-Quenzer, F. Fuster, J. Galloni, A. Gamba, D. Gamblin, S. Gandelman, M. Garcia, C. Gaspar, C. Gaspar, M. Gasparini, U. Gavillet, Ph. Gazis, E.N. Gele, D. Gerdyukov, L. Ghodbane, N. Gil, I. Glege, F. Gokieli, R. Golob, B. Gomez-Ceballos, G. Goncalves, P. Gonzalez Caballero, I. Gopal, G. Gorn, L. Gorski, M. Gouz, Y. Gracco, V. Grahl, J. Graziani, E. Green, C. Grimm, H.-J. Gris, P. Grosdidier, G. Grzelak, K. Gunther, M. Guy, J. Hahn, F. Hahn, S. Haider, S. Hallgren, A. Hamacher, K. Hansen, J. Harris, F.J. Hedberg, V. Heising, S. Hernandez, J.J. Herquet, P. Herr, H. Hessing, T.L. Heuser, J.-M. Higon, E. Holmgren, S.-O. Holt, P.J. Hoorelbeke, S. Houlden, M. Hrubec, J. Huet, K. Hughes, G.J. Hultqvist, K. Jackson, J.N. Jacobsson, R. Jalocha, P. Janik, R. Jarlskog, Ch. Jarlskog, G. Jarry, P. Jean-Marie, B. Johansson, E.K. Jonsson, P. Joram, C. Juillot, P. Kapusta, F. Karafasoulis, K. Katsanevas, S. Katsoufis, E.C. Keranen, R. Kersevan, B.P. Khomenko, B.A. Khovanski, N.N. Kiiskinen, A. King, B. Kinvig, A. Kjaer, N.J. Klapp, O. Klein, H. Kluit, P. Kokkinias, P. Koratzinos, M. Kostioukhine, V. Kourkoumelis, C. Kouznetsov, O. Kriznic, E. Krstic, P. Krumstein, Z. Kubinec, P. Kurowska, J. Kurvinen, K. Lamsa, J.W. Lane, D.W. Langefeld, P. Lapin, V. Laugier, J.-P. Lauhakangas, R. Leder, G. Ledroit, F. Lefebure, V. Leinonen, L. Leisos, A. Leitner, R. Lemonne, J. Lenzen, G. Lepeltier, V. Lesiak, T. Lethuillier, M. Libby, J. Liko, D. Lipniacka, A. Lippi, I. Loerstad, B. Loken, J.G. Lopes, J.H. Lopez, J.M. Lopez-Fernandez, R. Loukas, D. Lutz, P. Lyons, L. MacNaughton, J. Mahon, J.R. Maio, A. Malek, A. Malmgren, T.G.M. Maltezos, S. Malychev, V. Mandl, F. Marco, J. Marco, R. Marechal, B. Margoni, M. Marin, J.-C. Mariotti, C. Markou, A. Martinez-Rivero, C. Martinez-Vidal, F. Marti i Garcia, S. Masik, J. Mastroyiannopoulos, N. Matorras, F. Matteuzzi, C. Matthiae, G. Mazzucato, F. Mazzucato, M. Mc Cubbin, M. Mc Kay, R. Mc Nulty, R. Mc Pherson, G. Meroni, C. Meyer, W.T. Miagkov, A. Migliore, E. Mirabito, L. Mitaroff, W.A. Mjoernmark, U. Moa, T. Moch, M. Moeller, R. Moenig, K. Monge, M.R. Moreau, X. Morettini, P. Morton, G. Mueller, U. Muenich, K. Mulders, M. Mulet-Marquis, C. Muresan, R. Murray, W.J. Muryn, B. Myatt, G. Myklebust, T. Naraghi, F. Nassiakou, M. Navarria, F.L. Navas, S. Nawrocki, K. Negri, P. Nemecek, S. Neufeld, N. Neumeister, N. Nicolaidou, R. Nielsen, B.S. Nikolenko, M. Nomokonov, V. Normand, A. Nygren, A. Obraztsov, V. Olshevski, A.G. Onofre, A. Orava, R. Orazi, G. Osterberg, K. Ouraou, A. Paganoni, M. Paiano, S. Pain, R. Paiva, R. Palacios, J. Palka, H. Papadopoulou, T.D. Papageorgiou, K. Pape, L. Parkes, C. Parodi, F. Parzefall, U. Passeri, A. Passon, O. Pegoraro, M. Peralta, L. Pernicka, M. Perrotta, A. Petridou, C. Petrolini, A. Phillips, H.T. Pierre, F. Pimenta, M. Piotto, E. Podobnik, T. Pol, M.E. Polok, G. Poropat, P. Pozdniakov, V. Privitera, P. Pukhaeva, N. Pullia, A. Radojicic, D. Ragazzi, S. Rahmani, H. Ratoff, P.N. Read, A.L. Rebecchi, P. Redaelli, N.G. Regler, M. Reid, D. Reinhardt, R. Renton, P.B. Resvanis, L.K. Richard, F. Ridky, J. Rinaudo, G. Rohne, O. Romero, A. Ronchese, P. Rosenberg, E.I. Rosinsky, P. Roudeau, P. Rovelli, T. Royon, Ch. Ruhlmann-Kleider, V. Ruiz, A. Saarikko, H. Sacquin, Y. Sadovsky, A. Sajot, G. Salt, J. Sampsonidis, D. Sannino, M. Schneider, H. Schwemling, Ph. Schwering, B. Schwickerath, U. Schyns, M.A.E. Scuri, F. Seager, P. Sedykh, Y. Segar, A.M. Sekulin, R. Shellard, R.C. Sheridan, A. Siebel, M. Simard, L. Simonetto, F. Sisakian, A.N. Smadja, G. Smirnova, O. Smith, G.R. Sokolov, A. Sopczak, A. Sosnowski, R. Spassov, T. Spiriti, E. Sponholz, P. Squarcia, S. Stanescu, C. Stanic, S. Stevenson, K. Stocchi, A. Strauss, J. Strub, R. Stugu, B. Szczekowski, M. Szeptycka, M. Tabarelli, T. Tchikilev, O. Tegenfeldt, F. Terranova, F. Thomas, J. Timmermans, J. Tinti, N. Tkatchev, L.G. Todorova, S. Tomaradze, A. Tome, B. Tonazzo, A. Tortora, L. Transtromer, G. Treille, D. Tristram, G. Trochimczuk, M. Troncon, C. Tsirou, A. Turluer, M.-L. Tyapkin, I.A. Tzamarias, S. Ullaland, O. Uvarov, V. Valenti, G. Vallazza, E. Vander Velde, C. van Apeldoorn, G.W. van Dam, P. van Doninck, W.K. van Eldik, J. van Lysebetten, A. van Remortel, N. van Vulpen, I. Vassilopoulos, N. Vegni, G. Ventura, L. Venus, W. Verbeure, F. Verlato, M. Vertogradov, L.S. Verzi, V. Vilanova, D. Vitale, L. Vlasov, E. Vodopyanov, A.S. Vollmer, C. Voulgaris, G. Vrba, V. Wahlen, H. Walck, C. Weiser, C. Wicke, D. Wickens, J.H. Wilkinson, G.R. Winter, M. Witek, M. Wolf, G. Yi, J. Yushchenko, O. Zalewska, A. Zalewski, P. Zavrtanik, D. Zevgolatakos, E. Zimin, N.I. Zucchelli, G.C. Zumerle, G.
Subjects: High Energy Physics::Phenomenology, High Energy Physics::Experiment, Nuclear Experiment
Abstract: The partial decay width Rc of the Z into cc̄ quark pair and the number of charm quarks nc per b decay are measured with the DELPHI detector at LEP 1. Particle identification provides clear D0, D+, D+s and Λ+c signatures. The charm hadron production rate is measured in each channel by a fit to the scaled energy, impact parameter information and the invariant mass spectrum. Two measurements of Rc are presented, from the D*+ production rate and from the overall charm counting, including strange charm baryon production, in cc̄ events. The multiplicity nc, which includes hidden cc̄ and strange charm baryon production, is inferred from the charm counting in bb̄ events. The final results are Rc = 0.1665 ± 0.0095 and nc-= 1.166 ± 0.086.
Published: 2000

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