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312 results on '"Courvoisier, D"'

51. FRI0110 The impact of seropositivity on the effectiveness of abatacept versus tnf inhibitors in rheumatoid arthritis. real life data from several european registries (THE PAN-ABA STUDY)

Author

Courvoisier, D., Mongin, D., Hetland, M., Pavelka, K., Turesson, C., Bergstra, S. A., Kvien, T. K., Santos, M. J., Hernandez, V., Iannone, F., Gottenberg, J.-e., Mariette, X., Kubo, S., Tanaka, Y., Choquette, D., Ionescu, R., Finckh, A., Courvoisier, D., Mongin, D., Hetland, M., Pavelka, K., Turesson, C., Bergstra, S. A., Kvien, T. K., Santos, M. J., Hernandez, V., Iannone, F., Gottenberg, J.-e., Mariette, X., Kubo, S., Tanaka, Y., Choquette, D., Ionescu, R., and Finckh, A.

Published
2018

52. Clinical classification criteria for radicular pain caused by lumbar disc herniation: the RAPIDH criteria (RAdicular PaIn caused by Disc Herniation)

Author

Genevay, S, Courvoisier, D, Konstantinou, K, Kovacs, F, Marty, M, Rainville, J, Norberg, M, Kaux, JF, Cha, T, Katz, J, and Atlas, S

Subjects
RC925
Abstract

Background Context\ud Classification criteria are recommended for diseases that lack specific biomarkers to improve homogeneity in clinical research studies. Because imaging evidence of lumbar disc herniations (LDHs) may not be associated with symptoms, clinical classification criteria based on patient symptoms and physical examination findings are required.\ud \ud Purpose\ud This study aimed to produce clinical classification criteria to identify patients with radicular pain caused by LDH.\ud \ud Study Design\ud The study design was a two-stage process. Phase 1 included a Delphi process and Phase 2 included a cohort study.\ud \ud Patient Sample\ud The patient sample included outpatients recruited from spine clinics in five countries.\ud \ud Outcome Measures\ud The outcome measures were items from history and physical examination.\ud \ud Materials and Methods\ud In Phase 1, 17 spine experts participated in a Delphi process to select symptoms and signs suggesting radicular pain caused by LDH. In Phase 2, 19 different clinical experts identified patients they confidently classified as presenting with (1) radicular pain caused by LDH, (2) neurogenic claudication (NC) caused by lumbar spinal stenosis, or (3) non-specific low back pain (NSLBP) with referred leg pain. Patients completed survey items and specialists documented examination signs. A score to predict radicular pain caused by LDH was developed based on the coefficients of the multivariate model. An unrestricted grant of less than US$15,000 was received from MSD: It was used to support the conception of the Delphi, data management, and statistical analysis. No fees were allocated to participating spine specialists.\ud \ud Results\ud Phase 1 generated a final list of 74 potential symptoms and signs. In Phase 2, 209 patients with pain caused by LDH (89), NC (63), or NSLBP (57) were included. Items predicting radicular pain caused by LDH (p

Published
2017

56. Towards standardized patient reported physical function outcome reporting: linking ten commonly used questionnaires to a common metric

Author

Oude Voshaar, M. A. H., primary, Vonkeman, H. E., additional, Courvoisier, D., additional, Finckh, A., additional, Gossec, L., additional, Leung, Y. Y., additional, Michaud, K., additional, Pinheiro, G., additional, Soriano, E., additional, Wulfraat, N., additional, Zink, A., additional, and van de Laar, M. A. F. J., additional

Published
2018
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57. FRI0110 The impact of seropositivity on the effectiveness of abatacept versus tnf inhibitors in rheumatoid arthritis. real life data from several european registries (THE PAN-ABA STUDY)

Author

Courvoisier, D., primary, Mongin, D., additional, Hetland, M., additional, Pavelka, K., additional, Turesson, C., additional, Bergstra, S. A., additional, Kvien, T. K., additional, Santos, M. J., additional, Hernandez, V., additional, Iannone, F., additional, Gottenberg, J.-E., additional, Mariette, X., additional, Kubo, S., additional, Tanaka, Y., additional, Choquette, D., additional, Ionescu, R., additional, and Finckh, A., additional

Published
2018
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59. FRI0668 Item response theory to standardize patient reported physical function outcomes; linking 10 commonly used questionnaires to a common metric

Author

Oude Voshaar, M., primary, Vonkeman, H., additional, Courvoisier, D., additional, Finckh, A., additional, Gossec, L., additional, Ying, Leung Ying, additional, Michaud, K., additional, Pinheiro, G., additional, Soriano, E., additional, Wulfraat, N., additional, Zink, A., additional, and van de laar, M., additional

Published
2018
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62. CROSS COUNTRY DIFFERENCES IN B/TSDMARD PRESCRIPTION BEHAVIOR: ASSOCIATIONS BETWEEN SOCIOECONOMICS, REAL WORLD B/TSDMARD USE AND DISEASE OUTCOMES.

Author

Nevins, I., Courvoisier, D., Finckh, A., Fritsch-Stork, R., Nordström, D., Rodrigues, A. M., Dinescu, Ș. C., Martos, Á. García, Oztas, M., Rotar, Z., Solomon-Escoto, K., Chopra, A., Vega-Morales, D., De Buck, P. D., Choquette, D., Conway, R., Iannone, F., Allaart, C., Huizinga, T., and Lauper, K.

Published
2023
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64. Does seropositivity influence differentially drug discontinuation of biologic antirheumatic agents with non-anti-tnf mode of action?

Author

Finckh, A, Courvoisier, D, Gottenberg, J-E, Mariette, X, Morel, J, Bergstra, SA, Hernandez, V, Codreanu, C, Kvien, TK, Santos, MJ, Pavelka, K, Hetland, M, Chatzidionysiou, K, Askling, J, Turesson, C, Gabay, C, Vollenhoven, R Van, Finckh, A, Courvoisier, D, Gottenberg, J-E, Mariette, X, Morel, J, Bergstra, SA, Hernandez, V, Codreanu, C, Kvien, TK, Santos, MJ, Pavelka, K, Hetland, M, Chatzidionysiou, K, Askling, J, Turesson, C, Gabay, C, and Vollenhoven, R Van

Published
2017

65. Clinical factors associated with the non-utilization of an anaesthesia incident reporting system

Author

Haller, G., Courvoisier, D. S., Anderson, H., Myles, P. S., Haller, G., Courvoisier, D. S., Anderson, H., and Myles, P. S.

Abstract

Background Incident reporting is a widely recommended method to measure undesirable events in anaesthesia. Under-utilization is a major weakness of voluntary incident reporting systems. Little is known about factors influencing reporting practices, particularly the clinical environment, anaesthesia team composition, severity of the incident, and perceived risk of litigation. The purpose of this study was to assess each of these, using an existing anaesthesia database. Methods We performed a retrospective cohort study and analysed 46 207 surgical patients. We used multivariate analysis to identify factors associated with the non-utilization of the reporting system. Results We found that in 7022 (15.1%) of the procedures performed, the incident reporting system was not used. Factors associated with the non-use of the system were regional anaesthesia/local anaesthesia, odds ratio (OR) 1.64 [95% confidence interval (CI) 1.03-2.62], emergency procedures OR 1.15 (95% CI: 1.05-1.27), and a consultant anaesthetist working without a trainee, OR 1.71 (95% CI: 1.03-2.82). In contrast, factors such as longer duration of surgery, OR 0.85 (95% CI: 0.76-0.94), the presence of a senior anaesthesia trainee, OR 0.86 (95% CI: 0.81-0.92), and the occurrence of severe complications with a high risk of litigation (i.e. death, nerve injuries) were less associated with a non-use of the reporting system, OR 0.65 (95% CI: 0.44-0.97). Team composition and time of day had no measurable impact on reporting practices. Conclusions Clinical factors play a significant role in the utilization of an anaesthesia incident reporting system and more particularly, severity of complications and higher liability risks which appear more as incentives than barriers to incident reporting

Published
2017

66. How perceived autonomy support and controlling coach behaviors are related to well- and ill-being in elite soccer players: A within-person changes and between-person differences analysis

Author

Cheval, B., Chalabaev, A., Quested, Eleanor, Courvoisier, D., Sarrazin, P., Cheval, B., Chalabaev, A., Quested, Eleanor, Courvoisier, D., and Sarrazin, P.

Abstract

Objectives: Grounded in Basic Psychological Needs Theory (Ryan & Deci, 2002), this study examined the temporal relationships between perception of coaches’ autonomy support and different facets of controlling behaviors, the satisfaction-frustration of athletes’ basic needs, and subjective vitality, self-esteem and burnout in elite sportsmen. Methods: Participants (N = 110 males) from three elite youth soccer academies in northwest France completed a questionnaire on three occasions during the last three months of the competitive season. Results: Linear mixed models revealed that perceptions of coach-autonomy support and only two facets of controlling coach behaviors (excessive personal control and negative conditional regard) were related to basic need satisfaction-frustration, which in turn were related to the indices of well- and ill-being. In most cases, the relationships were observed both at the within- and between-person levels, but some were observed only at one level. Conclusions: The findings highlight the importance of considering the different facets of controlling coach behaviors separately and disaggregating the between-person and within-person effects. © 2016 Elsevier Ltd

Published
2017

67. Which subgroup of patients with rheumatoid arthritis benefits from switching to rituximab versus alternative anti-tumour necrosis factor (TNF) agents after previous failure of an anti-TNF agent?

Author

Finckh, A, Ciurea, A, Brulhart, L, Möller, B, Walker, U A, Courvoisier, D, Kyburz, D, Dudler, J, Gabay, C, and Arthritis, on the behalf of the doctors of the Swiss Clinical Quality Management Programme for Rheumatoid

Subjects
Oncology, Male, Severity of Illness Index, Arthritis, Rheumatoid, Antibodies, Monoclonal, Murine-Derived, 0302 clinical medicine, Immunopathology, Immunology and Allergy, 030212 general & internal medicine, Antirheumatic Agents/*therapeutic use, Prospective Studies, Treatment Failure, Prospective cohort study, Clinical and epidemiological research, ddc:616, Antibodies, Monoclonal, Middle Aged, Connective tissue disease, Arthritis, Rheumatoid/*drug therapy, 3. Good health, Treatment Outcome, Rheumatoid arthritis, Antirheumatic Agents, Rituximab, Female, medicine.drug, medicine.medical_specialty, Tumor Necrosis Factor-alpha/*antagonists & inhibitors, Immunology, Antibodies, Monoclonal/*therapeutic use, General Biochemistry, Genetics and Molecular Biology, 03 medical and health sciences, Rheumatology, Internal medicine, Severity of illness, medicine, Humans, 030203 arthritis & rheumatology, Autoimmune disease, business.industry, Tumor Necrosis Factor-alpha, Patient Selection, medicine.disease, Antigens, CD20, business, Antigens, CD20/immunology
Abstract

Background:Patients with rheumatoid arthritis (RA) with an inadequate response to TNF antagonists (aTNFs) may switch to an alternative aTNF or start treatment from a different class of drugs, such as rituximab (RTX). It remains unclear in which clinical settings these therapeutic strategies offer most benefit.Objective:To analyse the effectiveness of RTX versus alternative aTNFs on RA disease activity in different subgroups of patients.Methods:A prospective cohort study of patients with RA who discontinued at least one aTNF and subsequently received either RTX or an alternative aTNF, nested within the Swiss RA registry (SCQM-RA) was carried out. The primary outcome, longitudinal improvement in 28-joint count Disease Activity Score (DAS28), was analysed using multivariate regression models for longitudinal data and adjusted for potential confounders.Results:Of the 318 patients with RA included; 155 received RTX and 163 received an alternative aTNF. The relative benefit of RTX varied with the type of prior aTNF failure: when the motive for switching was ineffectiveness to previous aTNFs, the longitudinal improvement in DAS28 was significantly better with RTX than with an alternative aTNF (p = 0.03; at 6 months, −1.34 (95% CI −1.54 to −1.15) vs −0.93 (95% CI −1.28 to −0.59), respectively). When the motive for switching was other causes, the longitudinal improvement in DAS28 was similar for RTX and alternative aTNFs (p = 0.40). These results were not significantly modified by the number of previous aTNF failures, the type of aTNF switches, or the presence of co-treatment with a disease-modifying antirheumatic drug.Conclusion:This observational study suggests that in patients with RA who have stopped a previous aTNF treatment because of ineffectiveness changing to RTX is more effective than switching to an alternative aTNF.

Published
2009

70. FRI0221 Does seropositivity influence differentially drug discontinuation of biologic antirheumatic agents with non-anti-tnf mode of action?

Author

Finckh, A, primary, Courvoisier, D, additional, Gottenberg, J-E, additional, Mariette, X, additional, Morel, J, additional, Bergstra, SA, additional, Hernandez, V, additional, Codreanu, C, additional, Kvien, TK, additional, Santos, MJ, additional, Pavelka, K, additional, Hetland, M, additional, Chatzidionysiou, K, additional, Askling, J, additional, Turesson, C, additional, Gabay, C, additional, and Vollenhoven, R Van, additional

Published
2017
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74. Brief Report: Association of Rheumatoid Factor and Anti-Citrullinated Protein Antibody Positivity With Better Effectiveness of Abatacept: Results From the Pan-European Registry Analysis

Author

Gottenberg, J E, Courvoisier, D S, Hernandez, M V, Iannone, F, Lie, E, Canhão, H, Pavelka, K, Hetland, M L, Turesson, C, Mariette, X, and Finckh, Axel

Subjects
musculoskeletal diseases, ddc:616, Male, Cyclic/immunology, Arthritis, Antirheumatic Agents/therapeutic use, Middle Aged, Peptides, Cyclic, Abatacept, Arthritis, Rheumatoid, Europe, Abatacept/therapeutic use, Rheumatoid Factor/blood, Treatment Outcome, Predictive Value of Tests, Rheumatoid Factor, Antirheumatic Agents, Humans, Female, Rheumatoid/blood/drug therapy, Registries, skin and connective tissue diseases, Autoantibodies/blood, Peptides, Autoantibodies
Abstract

To investigate the role of rheumatoid factor (RF) status and anti-citrullinated peptide antibody (ACPA) status as predictors of abatacept (ABA) effectiveness in patients with rheumatoid arthritis (RA).We conducted a pooled analysis of data from 9 observational RA registries in Europe (ARTIS [Sweden], ATTRA [Czech Republic], BIOBADASER [Spain], DANBIO [Denmark], GISEA [Italy], NOR-DMARD [Norway], ORA [France], Reuma.pt [Portugal], and SCQM-RA [Switzerland]). Inclusion criteria were a diagnosis of RA, initiation of ABA treatment, and available information on RF and/or ACPA status. The primary end point was continuation of ABA treatment. Secondary end points were ABA discontinuation for ineffectiveness or adverse events and response rates at 1 year (good or moderate response according to the European League Against Rheumatism criteria with LUNDEX adjustment for treatment continuation). Hazard ratios (HRs) and 95% confidence intervals (95% CIs) for the study end points in relation to RF and ACPA status were calculated.We identified 2,942 patients with available data on RA-associated autoantibodies; data on RF status were available for 2,787 patients (77.0% of whom were RF positive), and data on ACPA status were available for 1,903 patients (71.3% of whom were ACPA positive). Even after adjustment for sociodemographic and disease- and treatment-related confounders, RF and ACPA positivity were each associated with a lower risk of ABA discontinuation for any reason (HR 0.79 [95% CI 0.69-0.90], P0.001 and HR 0.78 [95% CI 0.68-0.90], P0.001, respectively), compared to RF-negative and ACPA-negative patients. Similar associations with RF and ACPA were observed for discontinuation of ABA treatment due to ineffectiveness, with HRs of 0.72 (95% CI 0.61-0.84) and 0.74 (95% CI 0.62-0.88), respectively (both P0.001).Our results strongly suggest that positivity for RF or ACPA is associated with better effectiveness of ABA therapy.

Published
2015

75. Trajectories of Disease Activity in Rheumatoid Arthritis Patients after Abatacept Initiation and Their Association with Clinical Characteristics

Author

Courvoisier, D. S., Gottenberg, J.-E., Hernández, M. V., Iannone, F., Lie, E., Canhão, H., Pavelka, K., Hetland, M., Turesson, C., Mariette, X., Choquette, D., Finckh, A., Courvoisier, D. S., Gottenberg, J.-E., Hernández, M. V., Iannone, F., Lie, E., Canhão, H., Pavelka, K., Hetland, M., Turesson, C., Mariette, X., Choquette, D., and Finckh, A.

Published
2016

76. Rheumatoid Arthritis Patients after Initiation of a New Biologic Agent:Trajectories of Disease Activity in a Large Multinational Cohort Study

Author

Courvoisier, D. S., Alpizar-Rodriguez, D., Gottenberg, Jacques-Eric, Hernández, M Victoria, Iannone, F, Lie, E., Santos, M. J., Pavelka, K., Turesson, C, Mariette, Xavier, Choquette, D., Hetland, M. L., Finckh, Axel, Courvoisier, D. S., Alpizar-Rodriguez, D., Gottenberg, Jacques-Eric, Hernández, M Victoria, Iannone, F, Lie, E., Santos, M. J., Pavelka, K., Turesson, C, Mariette, Xavier, Choquette, D., Hetland, M. L., and Finckh, Axel

Published
2016

78. Search for a very light Higgs boson in Z decays

Author

Décamp, D, Deschizeaux, B, Goy, C, Minard, M N, Crespo, J M, Delfino, M C, Fernández, E, Mato, P, Miquel, R, Mir, L M, Orteu, S, Pacheco, A, Perlas, J A, Tubau, E, Catanesi, M G, De Palma, M, Farilla, A, Iaselli, Giuseppe, Maggi, G, Natali, S, Nuzzo, S, Ranieri, A, Raso, G, Romano, F, Ruggieri, F, Selvaggi, G, Silvestris, L, Tempesta, P, Zito, G, Gao, Y, Hu, H, Huang, D, Jin, S, Lin, J, Ruan, T, Wang, T, Wu, W, Xie, Y, Xu, D, Xu, R, Zhang, J, Zhao, W, Albrecht, H, Atwood, W B, Bird, F, Blucher, E, Brown, D, Burnett, T H, Drevermann, H, Dydak, Friedrich, Forty, Roger W, Garrido, L, Grab, C, Hagelberg, R, Haywood, S, Jost, B, Kasemann, M, Kellner, Gottfried, Knobloch, J, Lacourt, A, Lehraus, Ivan, Lohse, T, Lüke, D, Marchioro, A, Martínez, M, May, J, Menary, S R, Minten, Adolf G, Miotto, A, Palazzi, P, Pepé-Altarelli, M, Ranjard, F, Roth, A E, Rothberg, J E, Rotscheidt, Herbert, von Rüden, Wolfgang, Saint-Denis, R, Schlatter, W D, Takashima, M, Talby, M, Taureg, Hans, Tejessy, W, Wachsmuth, H W, Wasserbaech, S R, Wheeler, S, Wiedenmann, W, Witzeling, W, Wotschack, J, Ajaltouni, Ziad J, Bardadin-Otwinowska, Maria, Falvard, A, Gay, P, Henrard, P, Jousset, J, Michel, B, Montret, J C, Pallin, D, Perret, P, Proriol, J, Prulhière, F, Hansen, J D, Hansen, J R, Hansen, P H, Møllerud, R, Nilsson, B S, Petersen, G, Efthymiopoulos, I, Simopoulou, Errietta, Vayaki, Anna, Badier, J, Blondel, A, Bonneaud, G R, Bourotte, J, Braems, F, Brient, J C, Ciocci, M A, Fouque, G, Guirlet, R, Matricon, P, Maubras, M, Morano, R, Miné, P, Parey, J Y, Poilleux, P, Rougé, A, Roy, C, Tanaka, R, Rumpf, M, Videau, H L, Videau, I, Candlin, D J, Parrini, G, Corden, M, Georgiopoulos, C H, Ikeda, M, Lannutti, J E, Levinthal, D A, Mermikides, Michael E, Sawyer, L, Stimpfl, G, Antonelli, A, Baldini, R, Bencivenni, G, Bologna, G, Bossi, F, Campana, P, Capon, G, Chiarella, V, De Ninno, G, D'Ettorre-Piazzoli, B, Felici, G, Laurelli, P, Mannocchi, G, Murtas, F, Murtas, G P, Nicoletti, G, Pallotta, M, Passalacqua, L, Picchi, P, Zografou, P, Altoon, B, Boyle, O, Halley, A W, ten Have, I, Hearns, J A, Lynch, J G, Morton, W T, Raine, C, Scarr, J M, Smith, K, Thompson, A S, Brandl, B, Braun, O, Geiges, R, Geweniger, C, Hanke, P, Hepp, V, Kluge, E E, Maumary, Y, Panter, M, Putzer, A, Rensch, B, Stahl, A, Tittel, K, Wunsch, M, Belk, A T, Beuselinck, R, Binnie, David M, Cameron, W, Cattaneo, M, Dornan, Peter J, Dugeay, S, Greene, A M, Hassard, J F, Patton, S J, Sedgbeer, J K, Taylor, G, Tomalin, I R, Wright, A G, Girtler, P, Kuhn, D, Rudolph, G, Bowdery, C K, Brodbeck, T J, Finch, A J, Foster, F, Hughes, G, Keemer, N R, Nuttall, M, Rowlingson, B S, Sloan, Terence, Snow, S W, Barczewski, T, Bauerdick, L A T, Kleinknecht, K, Renk, B, Roehn, S, Sander, H G, Schmelling, M, Steeg, F, Albanese, J P, Aubert, Jean-Jacques, Benchouk, C, Bonissent, A, Courvoisier, D, Etienne, F, Papalexiou, S, Payre, P, Pietrzyk, B, Becker, H, Blum, Walter, Cattaneo, Paolo Walter, Cowan, G D, Dehning, Bernd, Dietl, H, Fernández-Bosman, M, Jahn, A, Lange, E, Lütjens, G, Lutz, Gerhard, Männer, W, Moser, H G, Richter, R H, Schwarz, A, Settles, Ronald, Stiegler, U, Stierlin, U, Thomas, J, Bertin, V, De Bouard, G, Boucrot, J, Callot, O, Chen, X, Cordier, A, Davier, M, Duftot, L, Ganis, G, Grivaz, J F, Heusse, P, Janot, P, Journé, V, Kim, D W, Lefrançois, J, Lloyd-Owen, D, Lutz, A M, Veillet, J J, Zhang, Z, Zomer, F, Amendolia, S R, Bagliesi, G, Batignani, G, Bosisio, L, Bottigli, U, Bradaschia, C, Ferrante, I, Fidecaro, F, Foà, L, Focardi, E, Forti, F, Giassi, A, Giorgi, M A, Ligabue, F, Lusiani, A, Mannelli, E B, Marrocchesi, P S, Messineo, A, Palla, Fabrizio, Passuello, D, Sanguinetti, G, Steinberger, Jack, Tenchini, Roberto, Tonelli, G, Triggiani, G, Carter, J M, Green, M G, March, P V, Medcalf, T, Saich, M R, Strong, J, Thomas, R M, Wildish, T, Botterill, David R, Clifft, R W, Edgecock, T R, Edwards, M, Fisher, S M, Harvey, J, Jones, T J, Norton, P R, Salmon, D P, Thompson, J C, Bloch-Devaux, B, Colas, P, Klopfenstein, C, Lançon, E, Locci, E, Loucatos, Sotirios S, Mirabito, L, Pérez, P, Perrier, F, Rander, J, Renardy, J F, Roussarie, A, Schuller, J P, Ashman, John Gavin, Booth, C N, Combley, F, Dinsdale, M, Martín, J, Parker, D, Thompson, L F, Brandt, S, Burkhardt, H, Grupen, Claus, Meinhard, H, Neugebauer, E, Schäfer, U, Seywerd, H C J, Gobbo, B, Liello, F, Milotti, E, Rolandi, Luigi, Bellantoni, L, Boudreau, J F, Cinabro, D, Conway, J S, Cowen, D F, Feng, Z, Harton, J L, Hilgart, J M, Jared, R C, Johnson, R P, LeClaire, B W, Pan Yi Bin, Parker, T, Pater, J R, Ritz, S, Saadi, Y, Sharma, V, Wear, J A, Weber, F V, Wu Sau Lan, Xue, S T, Zobernig, G, Lees, J P, Decamp, D, Deschizeaux, B, Goy, C, Lees, Jp, Minard, Mn, Crespo, Jm, Delfino, M, Fernandez, E, Garrido, L, Mato, P, Miquel, R, Mir, Lm, Orteu, S, Pacheco, A, Perlas, Ja, Tubau, E, Catanesi, Mg, Depalma, M, Farilla, A, Iaselli, G, Maggi, G, Natali, S, Nuzzo, S, Ranieri, A, Raso, G, Romano, F, Ruggieri, F, Selvaggi, G, Silvestris, L, Tempesta, P, Zito, G, Gao, Y, Hu, H, Huang, D, Jin, S, Lin, J, Ruan, T, Wang, T, Wu, W, Xie, Y, Xu, D, Xu, R, Zhang, J, Zhang, Z, Zhao, W, Albrecht, H, Atwood, Wb, Bird, F, Blucher, E, Bossi, F, Bourotte, J, Brown, D, Burnett, Th, Drevermann, H, Dydak, F, Forty, Rw, Grab, C, Hagelberg, R, Haywood, S, Jost, B, Kasemann, M, Kellner, G, Knobloch, J, Lacourt, A, Lehraus, I, Lohse, T, Luke, D, Marchioro, A, Martinez, M, May, J, Menary, S, Minten, A, Miotto, A, Palazzi, P, Ranjard, F, Roth, A, Rothberg, J, Rotscheidt, H, Vonruden, W, Stdenis, R, Schlatter, D, Takashima, M, Talby, M, Taureg, H, Tejessy, W, Wachsmuth, H, Wasserbaech, S, Wheeler, S, Wiedenmann, W, Witzeling, W, Wotschack, J, Ajaltouni, Z, Bardadinotwinowska, M, Falvard, A, Gay, P, Henrard, P, Jousset, J, Michel, B, Montret, Jc, Pallin, D, Perret, P, Proriol, J, Prulhiere, F, Hansen, Jd, Hansen, Jr, Hansen, Ph, Mollerud, R, Nilsson, B, Petersen, G, Efthymiopoulos, I, Simopoulou, E, Vayaki, A, Badier, J, Blondel, A, Bonneaud, G, Braems, F, Brient, Jc, Fouque, G, Guirlet, R, Rouge, A, Rumpf, M, Tanaka, R, Videau, H, Videau, I, Candlin, Dj, Parrini, G, Corden, M, Georgiopoulos, C, Ikeda, M, Lannutti, J, Levinthal, D, Mermikides, M, Sawyer, L, Stimpfl, G, Antonelli, A, Baldini, R, Bencivenni, G, Bologna, G, Campana, P, Capon, G, Chiarella, V, Dettorepiazzoli, B, Felici, G, Laurelli, P, Mannocchi, G, Murtas, F, Murtas, Gp, Nicoletti, G, Pepealtarelli, M, Picchi, P, Zografou, P, Altoon, B, Boyle, O, Halley, Aw, Tenhave, I, Hearns, Jl, Lynch, Jg, Morton, Wt, Raine, C, Scarr, Jm, Smith, K, Thompson, A, Brandl, B, Braun, O, Geiges, R, Geweniger, C, Hanke, P, Hepp, V, Kluge, Ee, Maumary, Y, Panter, M, Putzer, A, Rensch, B, Stahl, A, Tittel, K, Wunsch, M, Belk, At, Beuselinck, R, Binnie, Dm, Cameron, W, Cattaneo, M, Dornan, Pj, Dugeay, S, Greene, Am, Hassard, Jf, Patton, Sj, Sedgbeer, Jk, Taylor, G, Tomalin, Ir, Wright, Ag, Girtler, P, Kuhn, D, Rudolph, G, Bowdery, Ck, Brodbeck, Tj, Finch, Aj, Foster, F, Hughes, G, Keemer, Nr, Nuttall, M, Rowlingson, B, Sloan, T, Snow, Sw, Barczewski, T, Bauerdick, Lat, Kleinknecht, K, Renk, B, Roehn, S, Sander, Hg, Schmelling, M, Steeg, F, Albanese, Jp, Aubert, Jj, Benchouk, C, Bonissent, A, Courvoisier, D, Etienne, F, Matsinos, E, Papalexiou, S, Payre, P, Pietrzyk, B, Qian, Z, Blum, W, Cattaneo, P, Cowan, G, Dehning, B, Dietl, H, Fernandezbosman, M, Jahn, A, Lange, E, Lutjens, G, Lutz, G, Manner, W, Moser, Hg, Pan, Y, Richter, R, Schwarz, A, Settles, R, Stiegler, U, Stierlin, U, Thomas, J, Bertin, V, Debouard, G, Boucrot, J, Callot, O, Chen, X, Cordier, A, Davier, M, Ganis, G, Grivaz, Jf, Heusse, P, Janot, P, Journe, V, Kim, Dw, Lefrancois, J, Lutz, Am, Veillet, Jj, Zomer, F, Amendolia, Sr, Bagliesi, G, Batignani, G, Bosisio, L, Bottigli, U, Bradaschia, C, Ciocci, Ma, Ferrante, I, Fidecaro, F, Foa, L, Focardi, E, Forti, F, Giassi, A, Giorgi, Ma, Ligabue, Franco, Lusiani, Alberto, Mannelli, Eb, Marrocchesi, P, Messineo, A, Palla, F, Sanguinetti, G, Steinberger, J, Tenchini, R, Tonelli, G, Triggiani, G, Carter, Jm, Green, Mg, March, Pv, Medcalf, T, Saich, Mr, Strong, Ja, Thomas, Rm, Wildish, T, Botterill, Dr, Clifft, Rw, Edgecock, Tr, Edwards, M, Fisher, Sm, Harvey, J, Jones, Tj, Norton, Pr, Salmon, Dp, Thompson, Jc, Blochdevaux, B, Colas, P, Klopfenstein, C, Lancon, E, Locci, E, Loucatos, S, Mirabito, L, Monnier, E, Perez, P, Perrier, F, Rander, J, Renardy, Jf, Roussarie, A, Schuller, Jp, Ashman, Jg, Booth, Cn, Combley, F, Dinsdale, M, Martin, J, Parker, D, Thompson, Lf, Brandt, S, Burkhardt, H, Grupen, C, Meinhard, H, Neugebauer, E, Schafer, U, Seywerd, H, Gobbo, B, Liello, F, Milotti, E, Rolandi, Luigi, Bellantoni, L, Boudreau, Jf, Cinabro, D, Conway, J, Cowen, Df, Feng, Z, Harton, Jl, Hilgart, J, Jared, Rc, Johnson, Rp, Leclaire, Bw, Pan, Yb, Parker, T, Pater, Jr, Saadi, Y, Sharma, V, Wear, Ja, Weber, Fv, Wu, Sl, Xue, St, and Zobernig, G.

Subjects
Physics, Nuclear and High Energy Physics, Particle physics, Aleph, Electron–positron annihilation, High Energy Physics::Phenomenology, Supersymmetry, Coupling (probability), law.invention, Nuclear physics, law, Higgs boson, High Energy Physics::Experiment, Collider, Particle Physics - Experiment, Minimal Supersymmetric Standard Model, Boson
Abstract

A search has been made for a very light Higgs boson in the processes e+e- → e+e-H and e+e- →μ+μ-H using data collected by ALEPH at the LEP e+e- collider at centre of mass energies close to the Z peak. The mass range between 0 and 57 MeV is unambigously excluded at the 95% confidence level. If we combine this with our previously published analysis, the complete range from 0 to 24 GeV is excluded at 95% CL. The search is extended to light Higgs bosons of the minimal supersymmetric standard model, with the result that all possibilities of coupling are excluded for Higgs masses below 3 GeV.

Published
1990

80. AB0178 Menopause Is A Predictor for The Development of Anti-Citrullinated Protein Antibodies in Women at Risk for Rheumatoid Arthritis

Author

Alpizar-Rodriguez, D., primary, Müller, R., additional, Möller, B., additional, Dudler, J., additional, Ciurea, A., additional, Von Mühlenen, I., additional, Kyburz, D., additional, Zufferey, P., additional, Bas, S., additional, Gascon, D., additional, Lamacchia, C., additional, Roux-Lombard, P., additional, Lauper, K., additional, Courvoisier, D., additional, Gabay, C., additional, and Finckh, A., additional

Published
2016
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81. FRI0071 Predictors for The Development of anti-Citrullinated Protein Antibodies in Individuals Genetically at Risk for Rheumatoid Arthritis

Author

Alpizar-Rodriguez, D., primary, Brulhart, L., additional, Müller, R., additional, Möller, B., additional, Dudler, J., additional, Ciurea, A., additional, Walker, U., additional, Von Mühlenen, I., additional, Kyburz, D., additional, Zufferey, P., additional, Mahler, M., additional, Bas, S., additional, Gascon, D., additional, Lamacchia, C., additional, Roux-Lombard, P., additional, Lauper, K., additional, Nissen, M., additional, Courvoisier, D., additional, Gabay, C., additional, and Finckh, A., additional

Published
2016
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82. FRI0088 Comparison of Rheumatoid Factor, Anti-Citrullinated Protein Antibodies, Anti-Carbamylated Protein Antibody, Anti-Peptidyl Arginine Deiminase Type-3 Antibodies and Calprotectin in Patients with Rheumatoid Arthritis and Spondyloarthritis

Author

Nissen, M.J., primary, Lamacchia, C., additional, Bas, S., additional, Roux-Lombard, P., additional, Courvoisier, D., additional, Kyburz, D., additional, Moeller, B., additional, Ciurea, A., additional, Mueller, R., additional, Zufferey, P., additional, Bentow, C., additional, Finckh, A., additional, Mahler, M., additional, and Gabay, C., additional

Published
2016
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83. Tissue eosinophilia in oral intraepithelial neoplasia as a probable indicator of invasion.

Author

Martinelli‐Kläy, C. P., Lombardi, T., Mendis, B. R. R. N., Soares, E. G., Salvado, F., Courvoisier, D. S., and Mauricio, P.

Subjects
SQUAMOUS cell carcinoma, MOUTH tumors, CARCINOMA in situ, BIOPSY, CANCER invasiveness, EOSINOPHILIA, EOSINOPHILS, HISTOLOGICAL techniques, STAINS & staining (Microscopy), SEVERITY of illness index, DIAGNOSIS
Abstract

Objective: To investigate the presence of eosinophils in oral intraepithelial neoplasia (OIN) and oral squamous cell carcinoma (OSCC) lesions and its relation to invasion. Subjects and methods: Ninety‐nine oral biopsies were selected and subdivided into the following: OIN‐1(16 cases), OIN‐2 (18 cases), OIN‐3 (17 cases), microinvasive OSCC (10 cases), non‐metastatic OSCC (22 cases) and metastatic OSCC (16 cases). The tissue eosinophilia was evaluated histologically in slices stained with haematoxylin and eosin. Results: Eosinophil distribution was associated with diagnosis severity (p < .01). A significant difference was found between OIN‐3 or microinvasive OSCC and non‐metastatic or metastatic OSCC. Stromal invasion threshold was 7 eos/10 high power field (hpf) (96.1% specificity and 62.5% sensitivity). Eosinophils were absent in OIN‐1; in OIN‐2, two cases were positive. In OIN‐3, five cases showed tissue eosinophilia, four of which had ≥3 eos/hpf or ≥7 eos/10 hpf. Three cases were suspected of invasion; two had a previous history of OSCC with elevated eosinophil infiltrate. In microinvasive OSCC, the four positive cases presented ≥3 eos/hpf and ≥7 eos/10 hpf. Although not significantly different, non‐metastatic invasive OSCC had a higher number of cases (68.2%) with ≥22 eos/10 hpf contrasting with 50% in metastatic OSCC. Conclusion: Our results suggest that eosinophils can be considered an indicator of invasion in OIN, helping in cases of difficult diagnosis. [ABSTRACT FROM AUTHOR]

Published
2018
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87. Multitrait-multimethod change modeling

Author

Geiser, C, Eid, M, Nussbeck, F W, Courvoisier, D S, Cole, D A, University of Zurich, and Geiser, C

Subjects
2604 Applied Mathematics, 10093 Institute of Psychology, 2603 Analysis, 3301 Social Sciences (miscellaneous), 2002 Economics and Econometrics, 2613 Statistics and Probability, 150 Psychology, 2611 Modeling and Simulation
Published
2010
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88. Which subgroup of rheumatoid arthritis patients benefits from switching to rituximab versus alternative anti-TNF agents after previous failure to anti-TNF agent?

Author

Finckh, A, Ciurea, A, Brulhart, L, Möller, B, Walker, U A, Courvoisier, D, Kyburz, D, Dudler, J, Gabay, C, University of Zurich, and Finckh, A

Subjects
2403 Immunology, 1300 General Biochemistry, Genetics and Molecular Biology, 2745 Rheumatology, 10051 Rheumatology Clinic and Institute of Physical Medicine, 2723 Immunology and Allergy, 610 Medicine & health
Published
2010
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89. Measurement of α from the structure of particle clusters produced in hadronic Z decays

Author

Décamp, D, Deschizeaux, B, Goy, C, Lees, J P, Minard, M N, Alemany, R, Crespo, J M, Delfino, M C, Fernández, E, Gaitan, V, Garrido, L, Mato, P, Miquel, R, Mir, L M, Orteu, S, Pacheco, A, Perlas, J A, Tubau, E, Catanesi, M G, Creanza, D, De Palma, M, Farilla, A, Iaselli, Giuseppe, Maggi, G, Maggi, M, Natali, S, Nuzzo, S, Quattromini, M, Ranieri, A, Raso, G, Romano, F, Ruggieri, F, Selvaggi, G, Silvestris, L, Tempesta, P, Zito, G, Gao, Y, Hu, H, Huang, D, Huang, X, Lin, J, Lou, J, Qiao, C, Ruan, T, Wang, T, Xie, Y, Xu, D, Xu, R, Zhang, J, Zhao, W, Albrecht, H, Atwood, W B, Bird, F, Blucher, E, Bonvicini, G, Bossi, F, Brown, D, Burnett, T H, Drevermann, H, Dydak, Friedrich, Forty, Roger W, Grab, C, Hagelberg, R, Haywood, S, Jost, B, Kasemann, M, Kellner, Gottfried, Knobloch, J, Lacourt, A, Lehraus, Ivan, Lohse, T, Lüke, D, Marchioro, A, Martínez, M, May, J, Menary, S R, Minten, Adolf G, Miotto, A, Nash, J, Palazzi, P, Ranjard, F, Redlinger, G, Roth, A E, Rothberg, J E, Rotscheidt, Herbert, von Rüden, Wolfgang, Saint-Denis, R, Schlatter, W D, Takashima, M, Talby, M, Tejessy, W, Wachsmuth, H W, Wasserbaech, S R, Wheeler, S, Wiedenmann, W, Witzeling, W, Wotschack, J, Ajaltouni, Ziad J, Bardadin-Otwinowska, Maria, Falvard, A, El-Fellous, R, Gay, P, Harvey, J, Henrard, P, Jousset, J, Michel, B, Montret, J C, Pallin, D, Perret, P, Proriol, J, Prulhière, F, Stimpfl, G, Hansen, J D, Hansen, J R, Hansen, P H, Møllerud, R, Nielsen, E R, Nilsson, B S, Efthymiopoulos, I, Simopoulou, Errietta, Vayaki, Anna, Badier, J, Blondel, A, Bonneaud, G R, Bourotte, J, Braems, F, Brient, J C, Fouque, G, Gamess, A, Guirlet, R, Lemoine, C, Matricon, P, Maubras, M, Morano, R, Miné, P, Parey, J Y, Poilleux, P, Rosowsky, A, Rougé, A, Rumpf, M, Tanaka, R, Videau, H L, Candlin, D J, Veitch, E, Parrini, G, Corden, M, Georgiopoulos, C H, Ikeda, M, Lannutti, J E, Levinthal, D A, Mermikides, Michael E, Sawyer, L, Antonelli, A, Baldini, R, Bencivenni, G, Bologna, G, Campana, P, Capon, G, Chiarella, V, D'Ettorre-Piazzoli, B, Felici, G, Laurelli, P, Mannocchi, G, Massimo-Brancaccio, F, Murtas, F, Murtas, G P, Nicoletti, G, Passalacqua, L, Pepé-Altarelli, M, Picchi, P, Zografou, P, Altoon, B, Boyle, O, Halley, A W, ten Have, I, Hearns, J A, Lynch, J G, Morton, W T, Raine, C, Scarr, J M, Smith, K, Thompson, A S, Brandl, B, Braun, O, Geiges, R, Geweniger, C, Hanke, P, Hepp, V, Heyde, W, Kluge, E E, Maumary, Y, Putzer, A, Rensch, B, Schmitt, K, Stahl, A, Tittel, K, Wunsch, M, Belk, A T, Beuselinck, R, Binnie, David M, Cameron, W, Cattaneo, M, Dornan, Peter J, Dugeay, S, Greene, A M, Hassard, J F, Lieske, N M, Patton, S J, Payne, D G, Phillips, D G, Sedgbeer, J K, Taylor, G, Tomalin, I R, Wright, A G, Girtler, P, Kuhn, D, Rudolph, G, Bowdery, C K, Brodbeck, T J, Finch, A J, Foster, F, Hughes, G, Keemer, N R, Nuttall, M, Patel, A D, Rowlingson, B S, Sloan, Terence, Snow, S W, Whelan, E P, Barczewski, T, Bauerdick, L A T, Kleinknecht, K, Renk, B, Roehn, S, Schmelling, M, Schmidt, H, Steeg, F, Albanese, J P, Aubert, Jean-Jacques, Benchouk, C, Bernard, V, Bonissent, A, Courvoisier, D, Etienne, F, Papalexiou, S, Payre, P, Pietrzyk, B, Qian, Z, Blum, Walter, Cattaneo, Paolo Walter, Cowan, G D, Dehning, Bernd, Dietl, H, Fernández-Bosman, M, Hansl-Kozanecka, Traudl, Jahn, A, Kozanecki, Witold, Lange, E, Lütjens, G, Lutz, Gerhard, Männer, W, Moser, H G, Richter, R H, Schröder, J, Schwarz, A, Settles, Ronald, Stierlin, U, Thomas, J, Wolf, G, Bertin, V, De Bouard, G, Boucrot, J, Callot, O, Chen, X, Cordier, A, Davier, M, Ganis, G, Grivaz, J F, Heusse, P, Janot, P, Journé, V, Kim, D W, Lefrançois, J, Lutz, A M, Veillet, J J, Videau, I, Zhang, Z, Zomer, F, Amendolia, S R, Bagliesi, G, Batignani, G, Bosisio, L, Bottigli, U, Bradaschia, C, Carpinelli, M, Ciocci, M A, Dell'Orso, R, Ferrante, I, Fidecaro, F, Foà, L, Focardi, E, Forti, F, Giassi, A, Giorgi, M A, Ligabue, F, Lusiani, A, Mannelli, E B, Marrocchesi, P S, Messineo, A, Moneta, L, Palla, Fabrizio, Sanguinetti, G, 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P., Lee, M. N., Minard, R., Alemany, J. M., Crespo, M., Delfino, E., Fernandez, V., Gaitan, Garrido, L. l., P., Mato, R., Miquel, Mir, L. l. M., S., Orteu, A., Pacheco, J. A., Perla, E., Tubau, M. G., Catanesi, D., Creanza, M., de Palma, A., Farilla, G., Iaselli, G., Maggi, M., Maggi, S., Natali, S., Nuzzo, M., Quattromini, A., Ranieri, G., Raso, F., Romano, F., Ruggieri, G., Selvaggi, L., Silvestri, P., Tempesta, G., Zito, Y., Gao, H., Hu, D., Huang, X., Huang, J., Lin, J., Lou, C., Qiao, T., Ruan, T., Wang, Y., Xie, D., Xu, R., Xu, J., Zhang, W., Zhao, H., Albrecht, W. B., Atwood, F., Bird, E., Blucher, G., Bonvicini, F., Bossi, D., Brown, T. H., Burnett, H., Drevermann, F., Dydak, R. W., Forty, C., Grab, R., Hagelberg, S., Haywood, B., Jost, M., Kasemann, G., Kellner, J., Knobloch, A., Lacourt, I., Lehrau, T., Lohse, D., Lüke, A., Marchioro, M., Martinez, J., May, S., Menary, A., Minten, A., Miotto, J., Nash, P., Palazzi, F., Ranjard, G., Redlinger, A., Roth, J., Rothberg, H., Rotscheidt, W., von Rüden, Denis, R. S. t., D., Schlatter, M., Takashima, M., Talby, W., Tejessy, H., Wachsmuth, S., Wasserbaech, S., Wheeler, W., Wiedenmann, W., Witzeling, J., Wotschack, Z., Ajaltouni, M., Bardadin Otwinowska, A., Falvard, R., El Fellou, P., Gay, J., Harvey, P., Henrard, J., Jousset, B., Michel, J. C., Montret, D., Pallin, P., Perret, J., Proriol, F., Prulhière, G., Stimpfl, J. D., Hansen, J. R., Hansen, P. H., Hansen, R., Møllerud, E. R., Nielsen, B. S., Nilsson, I., Efthymiopoulo, E., Simopoulou, A., Vayaki, J., Badier, A., Blondel, G., Bonneaud, J., Bourotte, F., Braem, J. C., Brient, G., Fouque, A., Game, R., Guirlet, A., Rosowsky, A., Rougé, M., Rumpf, R., Tanaka, H., Videau, D. J., Candlin, E., Veitch, G., Parrini, M., Corden, C., Georgiopoulo, M., Ikeda, J., Lannutti, D., Levinthal, M., Mermikide, L., Sawyer, A., Antonelli, R., Baldini, G., Bencivenni, G., Bologna, P., Campana, G., Capon, V., Chiarella, D'ETTORRE PIAZZOLI, Benedetto, G., Felici, P., Laurelli, G., Mannocchi, F., Massimo Brancaccio, F., Murta, G. P., Murta, G., Nicoletti, L., Passalacqua, M., Pepe Altarelli, P., Picchi, P., Zografou, B., Altoon, O., Boyle, A. W., Halley, I., ten Have, J. L., Hearn, J. G., Lynch, W. T., Morton, C., Raine, J. M., Scarr, K., Smith, A. S., Thompson, R. M., Turnbull, B., Brandl, O., Braun, R., Geige, C., Geweniger, P., Hanke, V., Hepp, E. E., Kluge, Y., Maumary, A., Putzer, B., Rensch, A., Stahl, K., Tittel, M., Wunsch, A. T., Belk, R., Beuselinck, D. M., Binnie, W., Cameron, M., Cattaneo, P. J., Dornan, S., Dugeay, A. M., Greene, J. F., Hassard, N. M., Lieske, S. J., Patton, D. G., Payne, M. J., Phillip, J. K., Sedgbeer, G., Taylor, I. R., Tomalin, A. G., Wright, P., Girtler, D., Kuhn, G., Rudolph, C. K., Bowdery, T. J., Brodbeck, A. J., Finch, F., Foster, G., Hughe, N. R., Keemer, M., Nuttall, A., Patel, B. S., Rowlingson, T., Sloan, S. W., Snow, E. P., Whelan, T., Barczewski, L. A. T., Bauerdick, K., Kleinknecht, B., Renk, S., Roehn, H. G., Sander, M., Schmelling, H., Schmidt, F., Steeg, J. P., Albanese, J. J., Aubert, C., Benchouk, V., Bernard, A., Bonissent, D., Courvoisier, F., Etienne, S., Papalexiou, P., Payre, B., Pietrzyk, Z., Qian, W., Blum, P., Cattaneo, G., Cowan, B., Dehning, H., Dietl, M., Fernandez Bosman, T., Hansl Kozanecka, A., Jahn, W., Kozanecki, E., Lange, G., Lütjen, G., Lutz, W., Männer, H. G., Moser, Y., Pan, R., Richter, J., Schröder, A. S., Schwarz, R., Settle, U., Stierlin, J., Thoma, G., Wolf, V., Bertin, G., de Bouard, J., Boucrot, O., Callot, X., Chen, A., Cordier, M., Davier, G., Gani, J. F., Grivaz, Heusse, P. h., P., Janot, V., Journé, D. W., Kim, J., Lefrançoi, A. M., Lutz, J. J., Veillet, I., Videau, Z., Zhang, F., Zomer, S. R., Amendolia, G., Bagliesi, G., Batignani, L., Bosisio, U., Bottigli, C., Bradaschia, M., Carpinelli, M. A., Ciocci, R., Dell'Orso, I., Ferrante, F., Fidecaro, L., Foà, E., Focardi, F., Forti, A., Giassi, M. A., Giorgi, F., Ligabue, A., Lusiani, E. B., Mannelli, P. S., Marrocchesi, A., Messineo, L., Moneta, F., Palla, G., Sanguinetti, J., Steinberger, R., Tenchini, G., Tonelli, G., Triggiani, C., Vannini Castaldi, A., Venturi, P. G., Verdini, J., Walsh, J. M., Carter, M. G., Green, P. V., March, T., Medcalf, I. S., Quazi, M. R., Saich, J. A., Strong, R. M., Thoma, L. R., West, T., Wildish, D. R., Botterill, R. W., Clifft, T. R., Edgecock, M., Edward, S. M., Fisher, T. J., Jone, P. R., Norton, D. P., Salmon, J. C., Thompson, B., Bloch Devaux, P., Cola, C., Klopfenstein, E., Lançon, E., Locci, S., Loucato, E., Monnier, P., Perez, F., Perrier, J., Rander, J. F., Renardy, A., Roussarie, J. P., Schuller, J., Schwindling, J. G., Ashman, C. N., Booth, C., Buttar, R., Carney, S., Cartwright, F., Combley, M., Dinsdale, M., Dogru, F., Hatfield, J., Martin, D., Parker, P., Reeve, L. F., Thompson, S., Brandt, H., Burkhardt, C., Grupen, H., Meinhard, L., Mirabito, E., Neugebauer, U., Schäfer, H., Seywerd, G., Apollinari, G., Giannini, B., Gobbo, F., Liello, L., Rolandi, U., Stiegler, L., Bellantoni, J. F., Boudreau, D., Cinabro, J. S., Conway, D. F., Cowen, A. J., Deweerd, Z., Feng, D. P. S., Ferguson, Y. S., Gao, J., Grahl, J. L., Harton, J., Hilgart, J. E., Jacobsen, R. C., Jared, R. P., Johnson, B. W., Leclaire, Y. B., Pan, J. R., Pater, Y., Saadi, V., Sharma, A. M., Walsh, J. A., Wear, F. V., Weber, M. H., Whitney, Sau Lan Wu Lan, Wu, Z. L., Zhou, and G., Zobernig

Subjects
Physics, Nuclear and High Energy Physics, Particle physics, media_common.quotation_subject, Electron–positron annihilation, Hadron, Asymmetry, Resonance (particle physics), Renormalization, Nuclear physics, Particle, High Energy Physics::Experiment, Invariant mass, Event (particle physics), Particle Physics - Experiment, media_common
Abstract

Using 106 000 hadronic events obtained with the ALEPH detector at LEP at energies close to the Z resonance peak, the strong coupling constant αs is measured by an analysis of energy-energy correlations (EEC) and the global event shape variables thrust, C-parameter and oblateness. It is shown that the theoretical uncertainties can be significantly reduced if the final state particles are first combined in clusters using a minimum scaled invariant mass cut, Ycut, before these variables are computed. The combined result from all shape variables of pre-clustered events is αs(MZ2 = 0.117±0.005 for a renormalization scale μ= 1 2 M Z . For μ values between MZ and the b-quark mass, the result changes by −0.009+0.006.

Published
1991

90. Improved measurements of electroweak parameters from Z decays into fermion pairs

Author

DECAMP D, DESCHIZEAUX B, GOY C, LEES JP, MINARD MN, ALEMANY R, CRESPO JM, DELFINO M, FERNANDEZ E, GAITAN V, GARRIDO L, MIR LM, PACHECO A, CATANESI MG, CREANZA D, DEPALMA M, FARILLA A, IASELLI G, MAGGI G, MAGGI M, NATALI S, NUZZO S, QUATTROMINI M, RANIERI A, RASO G, ROMANO F, RUGGIERI F, SELVAGGI G, SILVESTRIS L, TEMPESTA P, ZITO G, GAO Y, HU H, HUANG D, HUANG X, LIN J, LOU J, QIAO C, RUAN T, WANG T, XIE Y, XU D, XU R, ZHANG J, ZHAO W, ATWOOD WB, BAUERDICK LAT, BIRD F, BLUCHER E, BONVICINI G, BOSSI F, BOUDREAU J, BROWN D, BURNETT TH, DREVERMANN H, FORTY RW, GRAB C, HAGELBERG R, HAYWOOD S, HILGART J, JOST B, KASEMANN M, KNOBLOCH J, LACOURT A, LANCON E, LEHRAUS I, LOHSE T, LUSIANI A, MARCHIORO A, MARTINEZ M, MATO P, MENARY S, MINTEN A, MIOTTO A, MIQUEL R, MOSER HG, NASH J, PALAZZI P, RANJARD F, REDLINGER G, ROTH A, ROTHBERG J, ROTSCHEIDT H, SAICH M, DENIS RS, SCHLATTER D, TAKASHIMA M, TALBY M, TEJESSY W, WACHSMUTH H, WASSERBAECH S, WHEELER S, WIEDENMANN W, WITZELING W, WOTSCHACK J, AJALTOUNI Z, BARDADINOTWINOWSKA M, ELFELLOUS R, FALVARD A, GAY P, HARVEY J, HENRARD P, JOUSSET J, MICHEL B, MONTRET JC, PALLIN D, PERRET P, PRORIOL J, PRULHIERE F, STIMPFL G, HANSEN JD, HANSEN JR, HANSEN PH, MOLLERUD R, NILSSON BS, EFTHYMIOPOULOS I, SIMOPOULOU E, VAYAKI A, BADIER J, BLONDEL A, BONNEAUD G, BOUROTTE J, BRAEMS F, BRIENT JC, FOUQUE G, GAMESS A, GUIRLET R, ORTEU S, ROSOWSKY A, ROUGE A, RUMPF M, TANAKA R, VIDEAU H, CANDLIN DJ, VEITCH E, PARRINI G, CORDEN M, GEORGIOPOULOS C, IKEDA M, LANNUTTI J, LEVINTHAL D, MERMIKIDES M, SAWYER L, ANTONELLI A, BALDINI R, BENCIVENNI G, BOLOGNA G, CAMPANA P, CAPON G, CERUTTI F, CHIARELLA V, DETTORREPIAZZOLI B, FELICI G, LAURELLI P, MANNOCCHI G, MURTAS F, MURTAS GP, NICOLETTI G, PASSALACQUA L, PEPEALTARELLI M, PICCHI P, ZOGRAFOU P, ALTOON B, BOYLE O, HALLEY AW, TENHAVE I, HEARNS JL, LYNCH JG, MORTON WT, RAINE C, SCARR JM, SMITH K, THOMPSON AS, TURNBULL RM, BRANDL B, BRAUN O, GEIGES R, GEWENIGER C, HANKE P, HEPP V, KLUGE EE, MAUMARY Y, PUTZER A, RENSCH B, STAHL A, TITTEL K, WUNSCH M, BELK AT, BEUSELINCK R, BINNIE DM, CAMERON W, CATTANEO M, DORNAN PJ, DUGEAY S, GREENE AM, HASSARD JF, LIESKE NM, PATTON SJ, PAYNE DG, PHILLIPS MJ, SEDGBEER JK, TAYLOR G, TOMALIN IR, WRIGHT AG, GIRTLER P, KUHN D, RUDOLPH G, BOWDERY CK, BRODBECK TJ, FINCH AJ, FOSTER F, HUGHES G, KEEMER NR, NUTTALL M, PATEL A, ROWLINGSON BS, SLOAN T, SNOW SW, WHELAN EP, BARCZEWSKI T, KLEINKNECHT K, RAAB J, RENK B, ROEHN S, SANDER HG, SCHMELLING M, SCHMIDT H, STEEG F, WALTHER SM, WOLF B, ALBANESE JP, AUBERT JJ, BENCHOUK C, BERNARD V, BONISSENT A, COURVOISIER D, ETIENNE F, PAPALEXIOU S, PAYRE P, PIETRZYK B, QIAN Z, BECKER H, BLUM W, CATTANEO P, COWAN G, DEHNING B, DIETL H, DYDAK F, FERNANDEZBOSMAN M, HANSLKOZANECKA T, JAHN A, KOZANECKI W, LANGE E, LAUBER J, LUTJENS G, LUTZ G, MANNER W, PAN Y, RICHTER R, SCHRODER J, SCHWARZ AS, SETTLES R, STIERLIN U, THOMAS J, WOLF G, BERTIN V, BOUCROT J, CALLOT O, CHEN X, CORDIER A, DAVIER M, GANIS G, GRIVAZ JF, HEUSSE P, JANOT P, KIM DW, LEDIBERDER F, LEFRANCOIS J, LUTZ AM, VEILLET JJ, VIDEAU I, ZHANG Z, ZOMER F, ABBANEO D, AMENDOLIA SR, BAGLIESI G, BATIGNANI G, BOSISIO L, BOTTIGLI U, BRADASCHIA C, CARPINELLI, Massimo, CIOCCI MA, DELLORSO R, FERRANTE I, FIDECARO F, FOA L, FOCARDI E, FORTI F, GATTO C, GIASSI A, GIORGI MA, LIGABUE F, MANNELLI EB, MARROCCHESI PS, MESSINEO A, MONETA L, PALLA F, SANGUINETTI G, STEINBERGER J, TENCHINI R, TONELLI G, TRIGGIANI G, VANNINI C, VENTURI A, VERDINI PG, WALSH J, CARTER JM, GREEN MG, MARCH PV, MEDCALF T, QUAZI IS, STRONG JA, THOMAS RM, WEST LR, WILDISH T, BOTTERILL DR, CLIFFT RW, EDGECOCK TR, EDWARDS M, FISHER SM, JONES TJ, NORTON PR, SALMON DP, THOMPSON JC, BLOCHDEVAUX B, COLAS P, KLOPFENSTEIN C, LOCCI E, LOUCATOS S, MONNIER E, PEREZ P, PERLAS JA, PERRIER F, RANDER J, RENARDY JF, ROUSSARIE A, SCHULLER JP, SCHWINDLING J, VALLAGE B, ASHMAN JG, BOOTH CN, BUTTAR C, CARNEY R, CARTWRIGHT S, COMBLEY F, DINSDALE M, DOGRU M, HATFIELD F, MARTIN J, PARKER D, REEVES P, THOMPSON LF, BARBERIO E, BRANDT S, BURKHARDT H, GRUPEN C, MEINHARD H, MIRABITO L, SCHAFER U, SEYWERD H, APOLLINARI G, GIANNINI G, GOBBO B, LIELLO F, RAGUSA F, ROLANDI L, STIEGLER U, BELLANTONI L, CINABRO D, CONWAY JS, COWEN DF, FENG Z, FERGUSON DPS, GAO YS, GRAHL J, HARTON JL, JACOBSEN JE, JARED RC, JOHNSON RP, LECLAIRE BW, PAN YB, PATER JR, SAADI Y, SHARMA V, SHI ZH, TANG YH, WALSH AM, WEAR JA, WEBER FV, WHITNEY MH, WU SL, ZOBERNIG G., Decamp, D, Deschizeaux, B, Goy, C, Lees, J, Minard, M, Alemany, R, Crespo, J, Delfino, M, Fernandez, E, Gaitan, V, Garrido, L, Mir, L, Pacheco, A, Catanesi, M, Creanza, D, Depalma, M, Farilla, A, Iaselli, G, Maggi, G, Maggi, M, Natali, S, Nuzzo, S, Quattromini, M, Ranieri, A, Raso, G, Romano, F, Ruggieri, F, Selvaggi, G, Silvestris, L, Tempesta, P, Zito, G, Gao, Y, Hu, H, Huang, D, Huang, X, Lin, J, Lou, J, Qiao, C, Ruan, T, Wang, T, Xie, Y, Xu, D, Xu, R, Zhang, J, Zhao, W, Atwood, W, Bauerdick, L, Bird, F, Blucher, E, Bonvicini, G, Bossi, F, Boudreau, J, Brown, D, Burnett, T, Drevermann, H, Forty, R, Grab, C, Hagelberg, R, Haywood, S, Hilgart, J, Jost, B, Kasemann, M, Knobloch, J, Lacourt, A, Lancon, E, Lehraus, I, Lohse, T, Lusiani, A, Marchioro, A, Martinez, M, Mato, P, Menary, S, Minten, A, Miotto, A, Miquel, R, Moser, H, Nash, J, Palazzi, P, Ranjard, F, Redlinger, G, Roth, A, Rothberg, J, Rotscheidt, H, Saich, M, Denis, R, Schlatter, D, Takashima, M, Talby, M, Tejessy, W, Wachsmuth, H, Wasserbaech, S, Wheeler, S, Wiedenmann, W, Witzeling, W, Wotschack, J, Ajaltouni, Z, Bardadinotwinowska, M, Elfellous, R, Falvard, A, Gay, P, Harvey, J, Henrard, P, Jousset, J, Michel, B, Montret, J, Pallin, D, Perret, P, Proriol, J, Prulhiere, F, Stimpfl, G, Hansen, J, Hansen, P, Mollerud, R, Nilsson, B, Efthymiopoulos, I, Simopoulou, E, Vayaki, A, Badier, J, Blondel, A, Bonneaud, G, Bourotte, J, Braems, F, Brient, J, Fouque, G, Gamess, A, Guirlet, R, Orteu, S, Rosowsky, A, Rouge, A, Rumpf, M, Tanaka, R, Videau, H, Candlin, D, Veitch, E, Parrini, G, Corden, M, Georgiopoulos, C, Ikeda, M, Lannutti, J, Levinthal, D, Mermikides, M, Sawyer, L, Antonelli, A, Baldini, R, Bencivenni, G, Bologna, G, Campana, P, Capon, G, Cerutti, F, Chiarella, V, Dettorrepiazzoli, B, Felici, G, Laurelli, P, Mannocchi, G, Murtas, F, Murtas, G, Nicoletti, G, Passalacqua, L, Pepealtarelli, M, Picchi, P, Zografou, P, Altoon, B, Boyle, O, Halley, A, Tenhave, I, Hearns, J, Lynch, J, Morton, W, Raine, C, Scarr, J, Smith, K, Thompson, A, Turnbull, R, Brandl, B, Braun, O, Geiges, R, Geweniger, C, Hanke, P, Hepp, V, Kluge, E, Maumary, Y, Putzer, A, Rensch, B, Stahl, A, Tittel, K, Wunsch, M, Belk, A, Beuselinck, R, Binnie, D, Cameron, W, Cattaneo, M, Dornan, P, Dugeay, S, Greene, A, Hassard, J, Lieske, N, Patton, S, Payne, D, Phillips, M, Sedgbeer, J, Taylor, G, Tomalin, I, Wright, A, Girtler, P, Kuhn, D, Rudolph, G, Bowdery, C, Brodbeck, T, Finch, A, Foster, F, Hughes, G, Keemer, N, Nuttall, M, Patel, A, Rowlingson, B, Sloan, T, Snow, S, Whelan, E, Barczewski, T, Kleinknecht, K, Raab, J, Renk, B, Roehn, S, Sander, H, Schmelling, M, Schmidt, H, Steeg, F, Walther, S, Wolf, B, Albanese, J, Aubert, J, Benchouk, C, Bernard, V, Bonissent, A, Courvoisier, D, Etienne, F, Papalexiou, S, Payre, P, Pietrzyk, B, Qian, Z, Becker, H, Blum, W, Cattaneo, P, Cowan, G, Dehning, B, Dietl, H, Dydak, F, Fernandezbosman, M, Hanslkozanecka, T, Jahn, A, Kozanecki, W, Lange, E, Lauber, J, Lutjens, G, Lutz, G, Manner, W, Pan, Y, Richter, R, Schroder, J, Schwarz, A, Settles, R, Stierlin, U, Thomas, J, Wolf, G, Bertin, V, Boucrot, J, Callot, O, Chen, X, Cordier, A, Davier, M, Ganis, G, Grivaz, J, Heusse, P, Janot, P, Kim, D, Lediberder, F, Lefrancois, J, Lutz, A, Veillet, J, Videau, I, Zhang, Z, Zomer, F, Abbaneo, D, Amendolia, S, Bagliesi, G, Batignani, G, Bosisio, L, Bottigli, U, Bradaschia, C, Carpinelli, M, Ciocci, M, Dellorso, R, Ferrante, I, Fidecaro, F, Foa, L, Focardi, E, Forti, F, Gatto, C, Giassi, A, Giorgi, M, Ligabue, F, Mannelli, E, Marrocchesi, P, Messineo, A, Moneta, L, Palla, F, Sanguinetti, G, Steinberger, J, Tenchini, R, Tonelli, G, Triggiani, G, Vannini, C, Venturi, A, Verdini, P, Walsh, J, Carter, J, Green, M, March, P, Medcalf, T, Quazi, I, Strong, J, Thomas, R, West, L, Wildish, T, Botterill, D, Clifft, R, Edgecock, T, Edwards, M, Fisher, S, Jones, T, Norton, P, Salmon, D, Thompson, J, Blochdevaux, B, Colas, P, Klopfenstein, C, Locci, E, Loucatos, S, Monnier, E, Perez, P, Perlas, J, Perrier, F, Rander, J, Renardy, J, Roussarie, A, Schuller, J, Schwindling, J, Vallage, B, Ashman, J, Booth, C, Buttar, C, Carney, R, Cartwright, S, Combley, F, Dinsdale, M, Dogru, M, Hatfield, F, Martin, J, Parker, D, Reeves, P, Thompson, L, Barberio, E, Brandt, S, Burkhardt, H, Grupen, C, Meinhard, H, Mirabito, L, Schafer, U, Seywerd, H, Apollinari, G, Giannini, G, Gobbo, B, Liello, F, Ragusa, F, Rolandi, L, Stiegler, U, Bellantoni, L, Cinabro, D, Conway, J, Cowen, D, Feng, Z, Ferguson, D, Grahl, J, Harton, J, Jacobsen, J, Jared, R, Johnson, R, Leclaire, B, Pater, J, Saadi, Y, Sharma, V, Shi, Z, Tang, Y, Walsh, A, Wear, J, Weber, F, Whitney, M, Wu, S, Zobernig, G, D., Decamp, B., Deschizeaux, C., Goy, J. P., Lee, M. N., Minard, R., Alemany, J. M., Crespo, M., Delfino, E., Fernandez, V., Gaitan, Garrido, L. l., Mir, L. l. M., A., Pacheco, M. G., Catanesi, D., Creanza, M., Palma, A., Farilla, G., Iaselli, G., Maggi, M., Maggi, S., Natali, S., Nuzzo, M., Quattromini, A., Ranieri, G., Raso, F., Romano, F., Ruggieri, G., Selvaggi, L., Silvestri, P., Tempesta, G., Zito, Y., Gao, H., Hu, D., Huang, X., Huang, J., Lin, J., Lou, C., Qiao, T., Ruan, T., Wang, Y., Xie, D., Xu, R., Xu, J., Zhang, W., Zhao, W. B., Atwood, L. A. T., Bauerdick, F., Bird, E., Blucher, G., Bonyicini, F., Bossi, J., Boudreau, D., Brown, T. H., Burnett, H., Drevermann, R. W., Forty, C., Grab, R., Hagelberg, S., Haywood, J., Hilgart, B., Jost, M., Kasemann, J., Knobloch, A., Lacourt, E., Lan�on, I., Lehrau, T., Lohse, A., Lusiani, A., Marchioro, M., Martinez, P., Mato, S., Menary, A., Minten, A., Miotto, R., Miquel, H. G., Moser, J., Nash, P., Palazzi, F., Ranjard, G., Redlinger, A., Roth, J., Rothberg, H., Rotscheidt, M., Saich, Denis, R. S. t., D., Schlatter, M., Takashima, M., Talby, W., Tejessy, H., Wachsmuth, S., Wasserbaech, S., Wheeler, W., Wiedenmann, W., Witzeling, J., Wotschack, Z., Ajaltouni, M., Bardadin Otwinowska, R., Fellou, A., Falvard, P., Gay, J., Harvey, P., Henrard, J., Jousset, B., Michel, J. C., Montret, D., Pallin, P., Perret, J., Proriol, F., Prulhi�re, G., Stimpfl, J. D., Hansen, J. R., Hansen, P. H., Hansen, R., M�llerud, B. S., Nilsson, I., Efthymiopoulo, E., Simopoulou, A., Vayaki, J., Badier, A., Blondel, G., Bonneaud, J., Bourotte, F., Braem, J. C., Brient, G., Fouque, A., Game, R., Guirlet, S., Orteu, A., Rosowsky, A., Roug�, M., Rumpf, R., Tanaka, H., Videau, D. J., Candlin, E., Veitch, G., Parrini, M., Corden, C., Georgiopoulo, M., Ikeda, J., Lannutti, D., Levinthal, M., Mermikide, L., Sawyer, A., Antonelli, R., Baldini, G., Bencivenni, G., Bologna, P., Campana, G., Capon, F., Cerutti, V., Chiarella, D'ETTORRE PIAZZOLI, Benedetto, G., Felici, P., Laurelli, G., Mannocchi, F., Murta, G. P., Murta, G., Nicoletti, L., Passalacqua, M., Pepe Altarelli, P., Picchi, P., Zografou, B., Altoon, O., Boyle, A. W., Halley, I., Have, J. L., Hearn, J. G., Lynch, W. T., Morton, C., Raine, J. M., Scarr, K., Smith, A. S., Thompson, R. M., Turnbull, B., Brandl, O., Braun, R., Geige, C., Geweniger, P., Hanke, V., Hepp, E. E., Kluge, Y., Maumary, A., Putzer, B., Rensch, A., Stahl, K., Tittel, M., Wunsch, A. T., Belk, R., Beuselinck, D. M., Binnie, W., Cameron, M., Cattaneo, P. J., Dornan, S., Dugeay, A. M., Greene, J. F., Hassard, N. M., Lieske, S. J., Patton, D. G., Payne, M. J., Phillip, J. K., Sedgbeer, G., Taylor, I. R., Tomalin, A. G., Wright, P., Girtler, D., Kuhn, G., Rudolph, C. K., Bowdery, T. J., Brodbeck, A. J., Finch, F., Foster, G., Hughe, N. R., Keemer, M., Nuttall, A., Patel, B. S., Rowlingson, T., Sloan, S. W., Snow, E. P., Whelan, T., Barczewski, K., Kleinknecht, J., Raab, B., Renk, S., Roehn, H. G., Sander, M., Schmelling, H., Schmidt, F., Steeg, S. M., Walther, B., Wolf, J. P., Albanese, J. J., Aubert, C., Benchouk, V., Bernard, A., Bonissent, D., Courvoisier, F., Etienne, S., Papalexiou, P., Payre, B., Pietrzyk, Z., Qian, H., Becker, W., Blum, P., Cattaneo, G., Cowan, B., Dehning, H., Dietl, F., Dydak, M., Fernandez Bosman, T., Hansl Kozanecka, A., Jahn, W., Kozanecki, E., Lange, J., Lauber, G., L�tjen, G., Lutz, W., M�nner, Y., Pan, R., Richter, J., Schr�der, A. S., Schwarz, R., Settle, U., Stierlin, J., Thoma, G., Wolf, V., Bertin, J., Boucrot, O., Callot, X., Chen, A., Cordier, M., Davier, G., Gani, J. F., Grivaz, Heusse, P. h., P., Janot, D. W., Kim, F., Diberder, J., Lefran�oi, A. M., Lutz, J. J., Veillet, I., Videau, Z., Zhang, F., Zomer, D., Abbaneo, S. R., Amendolia, G., Bagliesi, G., Batignani, L., Bosisio, U., Bottigli, C., Bradaschia, M., Carpinelli, M. A., Ciocci, R., Dell'Orso, I., Ferrante, F., Fidecaro, L., Fo�, E., Focardi, F., Forti, C., Gatto, A., Giassi, M. A., Giorgi, F., Ligabue, E. B., Mannelli, P. S., Marrocchesi, A., Messineo, L., Moneta, F., Palla, G., Sanguinetti, J., Steinberger, R., Tenchini, G., Tonelli, G., Triggiani, C., Vannini, A., Venturi, P. G., Verdini, J., Walsh, J. M., Carter, M. G., Green, P. V., March, T., Medcalf, I. S., Quazi, J. A., Strong, R. M., Thoma, L. R., West, T., Wildish, D. R., Botterill, R. W., Clifft, T. R., Edgecock, M., Edward, S. M., Fisher, T. J., Jone, P. R., Norton, D. P., Salmon, J. C., Thompson, B., Bloch Devaux, P., Cola, C., Klopfenstein, E., Locci, S., Loucato, E., Monnier, P., Perez, J. A., Perla, F., Perrier, J., Rander, J. F., Renardy, A., Roussarie, J. P., Schuller, J., Schwindling, B., Vallage, J. G., Ashman, C. N., Booth, C., Buttar, R., Carney, S., Cartwright, F., Combley, M., Dinsdale, M., Dogru, F., Hatfield, J., Martin, D., Parker, P., Reeve, L. F., Thompson, E., Barberio, S., Brandt, H., Burkhardt, C., Grupen, H., Meinhard, L., Mirabito, U., Sch�fer, H., Seywerd, G., Apollinari, G., Giannini, B., Gobbo, F., Liello, F., Ragusa, L., Rolandi, U., Stiegler, L., Bellantoni, D., Cinabro, J. S., Conway, D. F., Cowen, Z., Feng, D. P. S., Ferguson, Y. S., Gao, J., Grahl, J. L., Harton, J. E., Jacobsen, R. C., Jared, R. P., Johnson, B. W., Claire, Y. B., Pan, J. R., Pater, Y., Saadi, V., Sharma, Z. H., Shi, Y. H., Tang, A. M., Walsh, J. A., Wear, F. V., Weber, M. H., Whitney, Sau Lan, Wu, G., Zobernig, Lees, Jp, Minard, Mn, Crespo, Jm, Mir, Lm, Catanesi, Mg, Atwood, Wb, Bauerdick, Lat, Burnett, Th, Forty, Rw, Lusiani, Alberto, Moser, Hg, Montret, Jc, Hansen, Jd, Hansen, Jr, Hansen, Ph, Brient, Jc, Candlin, Dj, Murtas, Gp, Halley, Aw, Hearns, Jl, Lynch, Jg, Morton, Wt, Scarr, Jm, Turnbull, Rm, Kluge, Ee, Belk, At, Binnie, Dm, Dornan, Pj, Greene, Am, Hassard, Jf, Lieske, Nm, Patton, Sj, Payne, Dg, Phillips, Mj, Sedgbeer, Jk, Tomalin, Ir, Wright, Ag, Bowdery, Ck, Brodbeck, Tj, Finch, Aj, Keemer, Nr, Snow, Sw, Whelan, Ep, Sander, Hg, Walther, Sm, Albanese, Jp, Aubert, Jj, Grivaz, Jf, Kim, Dw, Lutz, Am, Veillet, Jj, Amendolia, Sr, Ciocci, Ma, Giorgi, Ma, Ligabue, Franco, Mannelli, Eb, Verdini, Pg, Carter, Jm, Green, Mg, March, Pv, Strong, Ja, Thomas, Rm, West, Lr, Botterill, Dr, Clifft, Rw, Edgecock, Tr, Fisher, Sm, Jones, Tj, Norton, Pr, Salmon, Dp, Thompson, Jc, Perlas, Ja, Renardy, Jf, Schuller, Jp, Ashman, Jg, Booth, Cn, Thompson, Lf, Cowen, Df, Ferguson, Dp, Harton, Jl, Jacobsen, Je, Jared, Rc, Johnson, Rp, Leclaire, Bw, Pan, Yb, Pater, Jr, Shi, Zh, Tang, Yh, Walsh, Am, Wear, Ja, Weber, Fv, Whitney, Mh, Wu, Sl, and Zobernig, G.

Subjects
Quark, Physics, Particle physics, Physics and Astronomy (miscellaneous), Electron–positron annihilation, High Energy Physics::Phenomenology, Electroweak interaction, Elementary particle, Weinberg angle, Fermion, ALEPH detector, Nuclear physics, High Energy Physics::Experiment, Neutrino, Engineering (miscellaneous), Particle Physics - Experiment, Lepton
Abstract

The properties of the Z resonance are measured on the basis of 190000 Z decays into fermion pairs collected with the ALEPH detector at LEP. Assuming lepton universality, M(Z) = (91.182 +/- 0.009exp +/- 0.020L;P) GeV, GAMMA(Z) = (2484 +/- 17) MeV, sigma(had)0 = (41.44 +/- 0.36) nb, and GAMMA(had)/GAMMA(ll) = 21.00 +/- 0.20. The corresponding number of light neutrino species is 2.97 +/- 0.07. The forward-backward asymmetry in leptonic decays is used to determine the ratio of vector to axial-vector coupling constants of leptons: g(V)2(M(Z)2)/g(A)2(M(Z)2) = 0.0072 +/- 0.0027. Combining these results with ALEPH results on quark charge and bbBAR asymmetries, and tau-polarization, sin2 theta(W)(M(Z)2) = 0.2312 +/- 0.0018. In the context of the Minimal Standard Model, limits are placed on the top-quark mass.

Published
1992

91. Search For Neutralino Production In Z Decays

Author

Decamp, D., Deschizeaux, B., Goy, C., Lees, J. -P., Minard, M. -N., Crespo, J. M., Delfino, M., Fernandez, E., Mato, P., Miquel, R., Mir, Ll. M., Orteu, S., Pacheco, A., Perlas, J. A., Tubau, E., Catanesi, M. G., de Palma, M., Farilla, A., Iaselli, G., Maggi, G., Natali, S., Nuzzo, S., Ranieri, A., Raso, G., Romano, F., Ruggieri, F., Selvaggi, G., Silvestris, L., Tempesta, P., Zito, G., Gao, Y., Hu, H., Huang, D., Jin, S., Lin, J., Ruan, T., Wang, T., Wu, W., Xie, Y., Xu, D., Xu, R., Zhang, J., Zhang, Z., Zhao, W., Albrecht, H., Atwood, W. B., Bird, F., Blucher, E., Brown, D., Burnett, T. H., Drevermann, H., Dydak, F., Forty, R. W., Garrido, Ll., Grab, C., Hagelberg, R., Haywood, S., Jost, B., Kasemann, M., Kellner, G., Knobloch, J., Lacourt, A., Lehraus, I., Lohse, T., Lüke, D., Marchioro, A., Martinez, M., May, J., Menary, S., Minten, A., Miotto, A., Palazzi, P., Pepe-Altarelli, M., Ranjard, F., Roth, A., Rothberg, J., Rotscheidt, H., von Rüden, W., St. Denis, R., Schlatter, D., Takashima, M., Talby, M., Taureg, H., Tejessy, W., Wachsmuth, W., Wasserbaech, S., Wheeler, S., Wiedenmann, W., Witzeling, W., Wotschack, J., Ajaltouni, Z., Bardadin-Otwinowska, M., Falvard, A., Gay, P., Henrard, P., Jousset, J., Michel, B., Montret, J. -C., Pallin, D., Perret, P., Proriol, J., Prulhière, F., Hansen, J. D., Hansen, J. R., Hansen, P. H., Møllerud, R., Nilsson, B. S., Petersen, G., Efthymiopoulos, I., Simopoulou, E., Vayaki, A., Badier, J., Blondel, A., Bonneaud, G., Bourotte, J., Braems, F., Brient, J. C., Ciocci, M. A., Fouque, G., Guirlet, R., Rougé, A., Rumpf, M., Tanaka, R., Videau, H., Videau, I., Candlin, D. J., Parrini, G., Corden, M., Georgiopoulos, C., Ikeda, M., Lannutti, J., Levinthal, D., Mermikides, M., Sawyer, L., Stimpfl, G., Antonelli, A., Baldini, R., Bencivenni, G., Bologna, G., Bossi, F., Campana, P., Capon, G., Chiarella, V., de Ninno, G., D'Ettorre-Piazzoli, B., Felici, G., Laurelli, P., Mannocchi, G., Murtas, F., Murtas, G. P., Nicoletti, G., Picchi, P., Zografou, P., Altoon, B., Boyle, O., Halley, A. W., Ten Have, I., Hearns, J. L., Lynch, J. G., Morton, W. T., Raine, C., Scarr, J. M., Smith, K., Thompson, A. S., Brandl, B., Braun, O., Geiges, R., Geweniger, C., Hanke, P., Hepp, V., Kluge, E. E., Maumary, Y., Panter, M., Putzer, A., Rensch, B., Stahl, A., Tittel, K., Wunsch, M., Belk, A. T., Beuselinck, R., Binnie, D. M., Cameron, W., Cattaneo, M., Dornan, P. J., Dugeay, S., Greene, A. M., Hassard, J. F., Patton, S. J., Sedgbeer, J. K., Taylor, G., Tomalin, I. R., Wright, A. G., Girtler, P., Kuhn, D., Rudolph, G., Bowdery, C. K., Brodbeck, T. J., Finch, A. J., Foster, F., Hughes, G., Keemer, N. R., Nuttall, M., Rowlingson, B. S., Sloan, T., Snow, S. W., Barczewski, T., Bauerdick, L. A. T., Kleinknecht, K., Renk, B., Roehn, S., Sander, H. -G., Schmelling, M., Steeg, F., Albanese, J. -P., Aubert, J. -J., Benchouk, C., Bonissent, A., Courvoisier, D., Etienne, F., Matsinos, E., Papalexiou, S., Payre, P., Pietrzyk, B., Qian, Z., Blum, W., Cattaneo, P., Cowan, G., Dehning, B., Dietl, H., Fernandez-Bosman, M., Jahn, A., Lange, E., Lütjens, G., Lutz, G., Männer, W., Moser, H. -G., Pan, Y., Richter, R., Schwarz, A. S., Settles, R., Stiegler, U., Stierlin, U., Thomas, J., Bertin, V., de Bouard, G., Boucrot, J., Callot, O., Chen, X., Cordier, A., Davier, M., Ganis, G., Grivaz, J. -F., Heusse, Ph., Janot, P., Journé, V., Kim, D. W., Lefrançois, J., Lutz, A. -M., Veillet, J. -J., Zomer, F., Amendolia, S. R., Bagliesi, G., Batignani, G., Bosisio, L., Bottigli, U., Bradaschia, C., Ferrante, I., Fidecaro, F., Faà, L., Focardi, E., Forti, F., Giassi, A., Giorgi, M. A., Ligabue, F., Lusiani, A., Mannelli, E. B., Marrocchesi, P. S., Messineo, A., Palla, F., Sanguinetti, G., Steinberger, J., Tenchini, R., Tonelli, G., Triggiani, G., Carter, J. M., Green, M. G., March, P. V., Medcalf, T., Saich, M. R., Strong, J. A., Thomas, R. M., Wildish, T., Botterill, D. R., Clifft, R. W., Edgecock, T. R., Edwards, M., Fisher, S. M., Harvey, J., Jones, T. J., Norton, P. R., Salmon, D. P., Thompson, J. C., Bloch-Devaux, B., Colas, P., Klopfenstein, C., Lançon, E., Locci, E., Loucatos, S., Mirabito, L., Monnier, E., Perez, P., Perrier, F., Rander, J., Renardy, J. -F., Roussarie, A., Schuller, J. -P., Ashman, J. G., Booth, C. N., Combley, F., Dinsdale, M., Martin, J., Parker, D., Thompson, L. F., Brandt, S., Burkhardt, H., Grupen, C., Meinhard, H., Neugebauer, E., Schäfer, U., Seywerd, H., Gobbo, B., Liello, F., Milotti, E., Rolandi, L., Bellantoni, L., Boudreau, J. F., Cinabro, D., Conway, J. S., Cowen, D. F., Feng, Z., Harton, J. L., Hilgart, J., Jared, R. C., Johnson, R. P., Leclaire, B. W., Pan, Y. B., Parker, T., Pater, J. R., Saadi, Y., Sharma, V., Wear, J. A., Weber, F. V., Sau, Lan, Xue, S. T., Zobernig, G., Decamp, D, Deschizeaux, B, Goy, C, Lees, Jp, Minard, Mn, Crespo, Jm, Delfino, M, Fernandez, E, Mato, P, Miquel, R, Mir, Lm, Orteu, S, Pacheco, A, Perlas, Ja, Tubau, E, Catanesi, Mg, Depalma, M, Farilla, A, Iaselli, G, Maggi, G, Natali, S, Nuzzo, S, Ranieri, A, Raso, G, Romano, F, Ruggieri, F, Selvaggi, G, Silvestris, L, Tempesta, P, Zito, G, Gao, Y, Hu, H, Huang, D, Jin, S, Lin, J, Ruan, T, Wang, T, Wu, W, Xie, Y, Xu, D, Xu, R, Zhang, J, Zhang, Z, Zhao, W, Albrecht, H, Atwood, Wb, Bird, F, Blucher, E, Brown, D, Burnett, Th, Drevermann, H, Dydak, F, Forty, Rw, Garrido, L, Grab, C, Hagelberg, R, Haywood, S, Jost, B, Kasemann, M, Kellner, G, Knobloch, J, Lacourt, A, Lehraus, I, Lohse, T, Luke, D, Marchioro, A, Martinez, M, May, J, Menary, S, Minten, A, Miotto, A, Palazzi, P, Pepealtarelli, M, Ranjard, F, Roth, A, Rothberg, J, Rotscheidt, H, Vonruden, W, Stdennis, R, Schlatter, D, Takashima, M, Talby, M, Taureg, H, Tejessy, W, Wachsmuth, H, Wasserbaech, S, Wheeler, S, Wiedenmann, W, Witzeling, W, Wotschack, J, Ajaltouni, Z, Bardadinotwinowska, M, Falvard, A, Gay, P, Henrard, P, Jousset, J, Michel, B, Montret, Jc, Pallin, D, Perret, P, Proriol, J, Prulhiere, F, Hansen, Jd, Hansen, Jr, Hansen, Ph, Mollerud, R, Nilsson, B, Petersen, G, Efthymiopoulos, I, Simopoulou, E, Vayaki, A, Badier, J, Blondel, A, Bonneaud, G, Bourotte, J, Braems, F, Brient, Jc, Ciocci, Ma, Fouque, G, Guirlet, R, Rouge, A, Rumpf, M, Tanaka, R, Videau, H, Videau, I, Candlin, Dj, Parrini, G, Corden, M, Georgiopoulos, C, Ikeda, M, Lannutti, J, Levinthal, D, Mermikides, M, Sawyer, L, Stimpfl, G, Antonelli, A, Baldini, R, Bencivenni, G, Bologna, G, Bossi, F, Campana, P, Capon, G, Chiarella, V, Deninno, G, Dettorrepiazzoli, B, Felici, G, Laurelli, P, Mannocchi, G, Murtas, F, Murtas, Gp, Nicoletti, G, Picchi, P, Zografou, P, Altoon, B, Boyle, O, Halley, Aw, Tenhave, I, Hearns, Jl, Lynch, Jg, Morton, Wt, Raine, C, Scarr, Jm, Smith, K, Thompson, A, Brandl, B, Braun, O, Geiges, R, Geweniger, C, Hanke, P, Hepp, V, Kluge, Ee, Maumary, Y, Panter, M, Putzer, A, Rensch, B, Stahl, A, Tittel, K, Wunsch, M, Belk, At, Beuselinck, R, Binnie, Dm, Cameron, W, Cattaneo, M, Dornan, Pj, Dugeay, S, Greene, Am, Hassard, Jf, Patton, Sj, Sedgbeer, Jk, Taylor, G, Tomalin, Ir, Wright, Ag, Girtler, P, Kuhn, D, Rudolph, G, Bowdery, Ck, Brodbeck, Tj, Finch, Aj, Foster, F, Hughes, G, Keemer, Nr, Nuttall, M, Rowlingson, B, Sloan, T, Snow, Sw, Barczewski, T, Bauerdick, Lat, Kleinknecht, K, Renk, B, Roehn, S, Sander, Hg, Schmelling, M, Steeg, F, Albanese, Jp, Aubert, Jj, Benchouk, C, Bonissent, A, Courvoisier, D, Etienne, F, Matsinos, E, Papalexiou, S, Payre, P, Pietrzyk, B, Qian, Z, Blum, W, Cattaneo, P, Cowan, G, Dehning, B, Dietl, H, Fernandezbosman, M, Jahn, A, Lange, E, Lutjens, G, Lutz, G, Manner, W, Moser, Hg, Pan, Y, Richter, R, Schwarz, A, Settles, R, Stiegler, U, Stierlin, U, Thomas, J, Bertin, V, Debouard, G, Boucrot, J, Callot, O, Chen, X, Cordier, A, Davier, M, Ganis, G, Grivaz, Jf, Heusse, P, Janot, P, Journe, V, Kim, Dw, Lefrancois, J, Lutz, Am, Veillet, Jj, Zomer, F, Amendolia, Sr, Bagliesi, G, Batignani, G, Bosisio, L, Bottigli, U, Bradaschia, C, Ferrante, I, Fidecaro, F, Foa, L, Focardi, E, Forti, F, Giassi, A, Giorgi, Ma, Ligabue, Franco, Lusiani, Alberto, Mannelli, Eb, Marrocchesi, P, Messineo, A, Palla, F, Sanguinetti, G, Steinberger, J, Tenchini, R, Tonelli, G, Triggiani, G, Carter, Jm, Green, Mg, March, Pv, Medcalf, T, Saich, Mr, Strong, Ja, Thomas, Rm, Wildish, T, Botterill, Dr, Clifft, Rw, Edgecock, Tr, Edwards, M, Fisher, Sm, Harvey, J, Jones, Tj, Norton, Pr, Salmon, Dp, Thompson, Jc, Blochdevaux, B, Colas, P, Klopfenstein, C, Lancon, E, Locci, E, Loucatos, S, Mirabito, L, Monnier, E, Perez, P, Perrier, F, Rander, J, Renardy, Jf, Roussarie, A, Schuller, Jp, Ashman, Jg, Booth, Cn, Combley, F, Dinsdale, M, Martin, J, Parker, D, Thompson, Lf, Brandt, S, Burkhardt, H, Grupen, C, Meinhard, H, Neugebauer, E, Schafer, U, Seywerd, H, Gobbo, B, Liello, F, Milotti, E, Rolandi, Luigi, Bellantoni, L, Boudreau, Jf, Cinabro, D, Conway, J, Cowen, Df, Feng, Z, Harton, Jl, Hilgart, J, Jared, Rc, Johnson, Rp, Leclaire, Bw, Pan, Yb, Parker, T, Pater, Jr, Saadi, Y, Sharma, V, Wear, Ja, Weber, Fv, Wu, Sl, Xue, St, and Zobernig, G.

Subjects
Physics, Nuclear and High Energy Physics, Aleph, Particle physics, Photon, Electron–positron annihilation, High Energy Physics::Phenomenology, Parameter space, Nuclear physics, Neutralino, High Energy Physics::Experiment, Particle Physics - Experiment, Lepton, Minimal Supersymmetric Standard Model
Abstract

Limits on Z decay branching ratios into neutralinos are reported. They were obtained from searches for monojets, acoplanar jets, acoplanar lepton pairs, single photons and acoplanar photon pairs as signaturs for the reactions e+e- → χχ′ and e+e- → χχ′, where χ is the lightest neutralino and χ′ any heavier one. The data sample used for these searches corresponds to about 23 000 events of Z decay into multihadrons, collected at LEP by the ALEPH detector for centre of mass energies at and near the Z peak. The results obtained are used to restrict the parameter space of the minimal supersymmetric standard model.

Published
1990

92. A PRECISE DETERMINATION OF THE NUMBER OF FAMILIES WITH LIGHT NEUTRINOS AND OF THE Z BOSON PARTIAL WIDTHS RID C-6238-2011 RID E-8846-2011 RID A-5953-2011

Author

DECAMP D, DESCHIZEAUX B, LEES JP, MINARD MN, CRESPO JM, DELFINO M, FERNANDEZ E, MARTINEZ M, MIQUEL R, MIR LM, ORTEU S, PACHECO A, PERLAS JA, TUBAU E, CATANESI MG, DEPALMA M, FARILLA A, IASELLI G, MAGGI G, NATALI S, NUZZO S, RANIERI A, RASO G, ROMANO F, RUGGIERI F, SELVAGGI G, SILVESTRIS L, TEMPESTA P, ZITO G, HU H, HUANG D, LIN J, RUAN T, WANG T, WU W, XIE Y, XU D, XU R, ZHANG J, ZHAO W, ALBRECHT H, ATWOOD WB, BIRD F, BLUCHER E, BURNETT TH, CHARITY T, DREVERMANN H, GARRIDO L, GRAB C, HAGELBERG R, HAYWOOD S, JOST B, KASEMANN M, KELLNER G, KNOBLOCH J, LACOURT A, LEHRAUS I, LOHSE T, LUKE D, MARCHIORO A, MATO P, MAY J, MINTEN A, MIOTTO A, PALAZZI P, PEPEALTARELLI M, RANJARD F, ROTH A, ROTHBERG J, ROTSCHEIDT H, VONRUDEN W, STDENIS R, SCHLATTER D, TAKASHIMA M, TALBY M, TAUREG H, TEJESSY W, WACHSMUTH H, WHEELER S, WIEDENMANN W, WITZELING W, WOTSCHACK J, AJALTOUNI Z, BARDADINOTWINOWSKA M, FALVARD A, GAY P, HENRARD P, JOUSSET J, MICHEL B, MONTRET JC, PALLIN D, PERRET P, PRORIOL J, PRULHIERE F, HANSEN JD, HANSEN JR, HANSEN PH, MOLLERUD R, PETERSEN G, SIMOPOULOU E, VAYAKI A, BADIER J, BLONDEL A, BONNEAUD G, BOUROTTE J, BRAEMS F, BRIENT JC, CIOCCI MA, FOUQUE G, GUIRLET R, ROUGE A, RUMPF M, TANAKA R, VIDEAU H, VIDEAU I, CANDLIN DJ, CONTI A, PARRINI G, CORDEN M, GEORGIOPOULOS C, GOLDMAN JH, IKEDA M, LANNUTTI J, LEVINTHAL D, MERMIKIDES M, SAWYER L, STIMPFL G, ANTONELLI A, BALDINI R, BENCIVENNI G, BOLOGNA G, BOSSI F, CAMPANA P, CAPON G, CHIARELLA V, DENINNO G, DETTORREPIAZZOLI B, FELICI G, LAURELLI P, MANNOCCHI G, MURTAS F, MURTAS GP, NICOLETTI G, PICCHI P, ZOGRAFOU P, ALTOON B, BOYLE O, HALLEY AW, TENHAVE I, HEARNS JL, HUGHES IS, LYNCH JG, MORTON WT, RAINE C, SCARR JM, SMITH K, THOMPSON AS, BRANDL B, BRAUN O, GEIGES R, GEWENIGER C, HANKE P, HEPP V, KLUGE EE, MAUMARY Y, PANTER M, PUTZER A, RENSCH B, STAHL A, TITTEL K, WUNSCH M, BELK AT, BEUSELINCK R, BINNIE DM, CAMERON W, CATTANEO M, DORNAN PJ, DUGEAY S, FORTY RW, GREENE AM, HASSARD JF, PATTON SJ, SEDGBEER JK, TAYLOR G, TOMALIN IR, WRIGHT AG, GIRTLER P, KUHN D, RUDOLPH G, BOWDERY CK, BRODBECK TJ, FINCH AJ, FOSTER F, HUGHES G, KEEMER NR, NUTTALL M, ROWLINGSON BS, SLOAN T, SNOW SW, BARCZEWSKI T, BAUERDICK LAT, KLEINKNECHT K, RENK B, ROEHN S, SANDER HG, SCHMELLING M, STEEG F, ALBANESE JP, AUBERT JJ, BENCHOUK C, BONISSENT A, COURVOISIER D, ETIENNE F, MATSINOS E, PAPALEXIOU S, PAYRE P, PIETRZYK B, QIAN Z, BLUM W, CATTANEO P, COWAN G, DEHNING B, DIETL H, FERNANDEZBOSMAN M, HAUFF D, JAHN A, LANGE E, LUTJENS G, LUTZ G, MANNER W, MOSER HG, PAN Y, RICHTER R, SCHWARZ AS, SETTLES R, STIEGLER U, STIERLIN U, THOMAS J, WALTERMANN G, BERTIN V, DEBOUARD G, BOUCROT J, CALLOT O, CHEN X, CORDIER A, DAVIER M, GANIS G, GRIVAZ JF, HEUSSE P, JANOT P, JOURNE V, KIM DW, LEFRANCOIS J, LUTZ AM, VEILLET JJ, ZOMER F, AMENDOLIA SR, BAGLIESI G, BATIGNANI G, BOSISIO L, BOTTIGLI U, BRADASCHIA C, FERRANTE I, FIDECARO F, FOA L, FOCARDI E, FORTI F, GIASSI A, GIORGI MA, LIGABUE, FRANCO, MANNELLI EB, MARROCCHESI PS, MESSINEO A, PALLA F, SANGUINETTI G, SCAPELLATO S, STEINBERGER J, TENCHINI R, TONELLI G, TRIGGIANI G, CARTER JM, GREEN MG, MARCH PV, MEDCALF T, SAICH MR, STRONG JA, THOMAS RM, WILDISH T, BOTTERILL DR, CLIFFT RW, EDGECOCK TR, EDWARDS M, FISHER SM, HARVEY J, JONES TJ, NORTON PR, SALMON DP, THOMPSON JC, AUBOURG E, BLOCHDEVAUX B, COLAS P, KLOPFENSTEIN C, LANCON E, LOCCI E, LOUCATOS S, MIRABITO L, MONNIER E, PEREZ P, PERRIER F, RANDER J, RENARDY JF, ROUSSARIE A, SCHULLER JP, ASHMAN JG, BOOTH CN, COMBLEY F, DINSDALE M, MARTIN J, PARKER D, THOMPSON LF, BRANDT S, BURKHARDT H, GRUPEN C, MEINHARD H, NEUGEBAUER E, SCHAFER U, SEYWERD H, GOBBO B, LIELLO F, MILOTTI E, RAGUSA F, BELLANTONI L, BOUDREAU JF, CINABRO D, CONWAY JS, COWEN DF, FENG Z, HARTON JL, HILGART J, JARED RC, JOHNSON RP, LECLAIRE BW, PAN YB, PARKER T, PATER JR, SAADI Y, SHARMA V, WEAR JA, WEBER FV, WU SL, XUE ST, ZOBERNIG G., LUSIANI, Alberto, ROLANDI, LUIGI, Decamp, D, Deschizeaux, B, Lees, Jp, Minard, Mn, Crespo, Jm, Delfino, M, Fernandez, E, Martinez, M, Miquel, R, Mir, Lm, Orteu, S, Pacheco, A, Perlas, Ja, Tubau, E, Catanesi, Mg, Depalma, M, Farilla, A, Iaselli, G, Maggi, G, Natali, S, Nuzzo, S, Ranieri, A, Raso, G, Romano, F, Ruggieri, F, Selvaggi, G, Silvestris, L, Tempesta, P, Zito, G, Hu, H, Huang, D, Lin, J, Ruan, T, Wang, T, Wu, W, Xie, Y, Xu, D, Xu, R, Zhang, J, Zhao, W, Albrecht, H, Atwood, Wb, Bird, F, Blucher, E, Burnett, Th, Charity, T, Drevermann, H, Garrido, L, Grab, C, Hagelberg, R, Haywood, S, Jost, B, Kasemann, M, Kellner, G, Knobloch, J, Lacourt, A, Lehraus, I, Lohse, T, Luke, D, Marchioro, A, Mato, P, May, J, Minten, A, Miotto, A, Palazzi, P, Pepealtarelli, M, Ranjard, F, Roth, A, Rothberg, J, Rotscheidt, H, Vonruden, W, Stdenis, R, Schlatter, D, Takashima, M, Talby, M, Taureg, H, Tejessy, W, Wachsmuth, H, Wheeler, S, Wiedenmann, W, Witzeling, W, Wotschack, J, Ajaltouni, Z, Bardadinotwinowska, M, Falvard, A, Gay, P, Henrard, P, Jousset, J, Michel, B, Montret, Jc, Pallin, D, Perret, P, Proriol, J, Prulhiere, F, Hansen, Jd, Hansen, Jr, Hansen, Ph, Mollerud, R, Petersen, G, Simopoulou, E, Vayaki, A, Badier, J, Blondel, A, Bonneaud, G, Bourotte, J, Braems, F, Brient, Jc, Ciocci, Ma, Fouque, G, Guirlet, R, Rouge, A, Rumpf, M, Tanaka, R, Videau, H, Videau, I, Candlin, Dj, Conti, A, Parrini, G, Corden, M, Georgiopoulos, C, Goldman, Jh, Ikeda, M, Lannutti, J, Levinthal, D, Mermikides, M, Sawyer, L, Stimpfl, G, Antonelli, A, Baldini, R, Bencivenni, G, Bologna, G, Bossi, F, Campana, P, Capon, G, Chiarella, V, Deninno, G, Dettorrepiazzoli, B, Felici, G, Laurelli, P, Mannocchi, G, Murtas, F, Murtas, Gp, Nicoletti, G, Picchi, P, Zografou, P, Altoon, B, Boyle, O, Halley, Aw, Tenhave, I, Hearns, Jl, Hughes, I, Lynch, Jg, Morton, Wt, Raine, C, Scarr, Jm, Smith, K, Thompson, A, Brandl, B, Braun, O, Geiges, R, Geweniger, C, Hanke, P, Hepp, V, Kluge, Ee, Maumary, Y, Panter, M, Putzer, A, Rensch, B, Stahl, A, Tittel, K, Wunsch, M, Belk, At, Beuselinck, R, Binnie, Dm, Cameron, W, Cattaneo, M, Dornan, Pj, Dugeay, S, Forty, Rw, Greene, Am, Hassard, Jf, Patton, Sj, Sedgbeer, Jk, Taylor, G, Tomalin, Ir, Wright, Ag, Girtler, P, Kuhn, D, Rudolph, G, Bowdery, Ck, Brodbeck, Tj, Finch, Aj, Foster, F, Hughes, G, Keemer, Nr, Nuttall, M, Rowlingson, B, Sloan, T, Snow, Sw, Barczewski, T, Bauerdick, Lat, Kleinknecht, K, Renk, B, Roehn, S, Sander, Hg, Schmelling, M, Steeg, F, Albanese, Jp, Aubert, Jj, Benchouk, C, Bonissent, A, Courvoisier, D, Etienne, F, Matsinos, E, Papalexiou, S, Payre, P, Pietrzyk, B, Qian, Z, Blum, W, Cattaneo, P, Cowan, G, Dehning, B, Dietl, H, Fernandezbosman, M, Hauff, D, Jahn, A, Lange, E, Lutjens, G, Lutz, G, Manner, W, Moser, Hg, Pan, Y, Richter, R, Schwarz, A, Settles, R, Stiegler, U, Stierlin, U, Thomas, J, Waltermann, G, Bertin, V, Debouard, G, Boucrot, J, Callot, O, Chen, X, Cordier, A, Davier, M, Ganis, G, Grivaz, Jf, Heusse, P, Janot, P, Journe, V, Kim, Dw, Lefrancois, J, Lutz, Am, Veillet, Jj, Zomer, F, Amendolia, Sr, Bagliesi, G, Batignani, G, Bosisio, L, Bottigli, U, Bradaschia, C, Ferrante, I, Fidecaro, F, Foa, L, Focardi, E, Forti, F, Giassi, A, Giorgi, Ma, Ligabue, Franco, Lusiani, Alberto, Mannelli, Eb, Marrocchesi, P, Messineo, A, Palla, F, Sanguinetti, G, Scapellato, S, Steinberger, J, Tenchini, R, Tonelli, G, Triggiani, G, Carter, Jm, Green, Mg, March, Pv, Medcalf, T, Saich, Mr, Strong, Ja, Thomas, Rm, Wildish, T, Botterill, Dr, Clifft, Rw, Edgecock, Tr, Edwards, M, Fisher, Sm, Harvey, J, Jones, Tj, Norton, Pr, Salmon, Dp, Thompson, Jc, Aubourg, E, Blochdevaux, B, Colas, P, Klopfenstein, C, Lancon, E, Locci, E, Loucatos, S, Mirabito, L, Monnier, E, Perez, P, Perrier, F, Rander, J, Renardy, Jf, Roussarie, A, Schuller, Jp, Ashman, Jg, Booth, Cn, Combley, F, Dinsdale, M, Martin, J, Parker, D, Thompson, Lf, Brandt, S, Burkhardt, H, Grupen, C, Meinhard, H, Neugebauer, E, Schafer, U, Seywerd, H, Gobbo, B, Liello, F, Milotti, E, Ragusa, F, Rolandi, Luigi, Bellantoni, L, Boudreau, Jf, Cinabro, D, Conway, J, Cowen, Df, Feng, Z, Harton, Jl, Hilgart, J, Jared, Rc, Johnson, Rp, Leclaire, Bw, Pan, Yb, Parker, T, Pater, Jr, Saadi, Y, Sharma, V, Wear, Ja, Weber, Fv, Wu, Sl, Xue, St, and Zobernig, G.

Published
1990

93. A SEARCH FOR PAIR-PRODUCED CHARGED HIGGS BOSONS IN Z0 DECAYS

Author

Décamp, D, Deschizeaux, B, Goy, C, Lees, J P, Minard, M N, Crespo, J M, Delfino, M C, Fernández, E, Martínez, M, Miquel, R, Mir, L M, Orteu, S, Pacheco, A, Perlas, J A, Tubau, E, Catanesi, M G, De Palma, M, Farilla, A, Iaselli, Giuseppe, Maggi, G, Natali, S, Nuzzo, S, Ranieri, A, Raso, G, Romano, F, Ruggieri, F, Selvaggi, G, Silvestris, L, Tempesta, P, Zito, G, Gao, Y, Hu, H, Huang, D, Jin, S, Lin, J, Ruan, T, Wang, T, Wu, D, Wu, W, Xie, Y, Xu, D, Xu, R, Zhang, J, Zhang, Z, Zhao, W, Albrecht, H, Atwood, W B, Bird, F, Blucher, E, Burnett, T H, Charity, T, Drevermann, H, Garrido, L, Grab, C, Hagelberg, R, Haywood, S, Jost, B, Kasemann, M, Kellner, Gottfried, Knobloch, J, Lacourt, A, Lazeyras, Pierre, Lehraus, Ivan, Lohse, T, Lüke, D, Marchioro, A, Mato, P, May, J, Minten, Adolf G, Miotto, A, Palazzi, P, Pepé-Altarelli, M, Ranjard, F, Roth, A E, Rothberg, J E, Rotscheidt, Herbert, von Rüden, Wolfgang, Saint-Denis, R, Schlatter, W D, Takashima, M, Talby, M, Taureg, Hans, Tejessy, W, Wachsmuth, H W, Wheeler, S, Wiedenmann, W, Witzeling, W, Wotschack, J, Ajaltouni, Ziad J, Bardadin-Otwinowska, Maria, Falvard, A, Gay, P, Henrard, P, Jousset, J, Michel, B, Montret, J C, Pallin, D, Perret, P, Proriol, J, Prulhière, F, Hansen, J D, Hansen, J R, Hansen, P H, Møllerud, R, Petersen, G, Simopoulou, Errietta, Vayaki, Anna, Badier, J, Blondel, A, Bonneaud, G R, Bourotte, J, Braems, F, Brient, J C, Ciocci, M A, Fouque, G, Guirlet, R, Rougé, A, Rumpf, M, Tanaka, R, Videau, H L, Videau, I, Candlin, D J, Conti, A, Parrini, G, Corden, M, Georgiopoulos, C H, Goldman, J H, Ikeda, M, Lannutti, J E, Levinthal, D A, Mermikides, Michael E, Sawyer, L, Stimpfl, G, Antonelli, A, Baldini, R, Bencivenni, G, Bologna, G, Bossi, F, Campana, P, Capon, G, Chiarella, V, De Ninno, G, D'Ettorre-Piazzoli, B, Felici, G, Laurelli, P, Mannocchi, G, Murtas, F, Murtas, G P, Nicoletti, G, Picchi, P, Zografou, P, Altoon, B, Boyle, O, Halley, A W, ten Have, I, Hearns, J A, Hughes, I S, Lynch, J G, Morton, W T, Raine, C, Scarr, J M, Smith, K, Thompson, A S, Brandl, B, Braun, O, Geiges, R, Geweniger, C, Hanke, P, Hepp, V, Kluge, E E, Maumary, Y, Panter, M, Putzer, A, Rensch, B, Stahl, A, Tittel, K, Wunsch, M, Belk, A T, Beuselinck, R, Binnie, David M, Cameron, W, Cattaneo, M, Dornan, Peter J, Dugeay, S, Forty, Roger W, Greene, A M, Hassard, J F, Patton, S J, Sedgbeer, J K, Taylor, G, Tomalin, I R, Wright, A G, Girtler, P, Kuhn, D, Rudolph, G, Bowdery, C K, Brodbeck, T J, Finch, A J, Foster, F, Hughes, G, Keemer, N R, Nuttall, M, Rowlingson, B S, Sloan, Terence, Snow, S W, Barczewski, T, Bauerdick, L A T, Kleinknecht, K, Renk, B, Roehn, S, Sander, H G, Schmelling, M, Steeg, F, Albanese, J P, Aubert, Jean-Jacques, Benchouk, C, Bonissent, A, Courvoisier, D, Etienne, F, Matsinos, E, Papalexiou, S, Payre, P, Pietrzyk, B, Qian, Z, Blum, Walter, Cattaneo, Paolo Walter, Cowan, G D, Dehning, Bernd, Dietl, H, Fernández-Bosman, M, Hauff, D, Jahn, A, Lange, E, Lütjens, G, Lutz, Gerhard, Männer, W, Moser, H G, Richter, R H, Schwarz, A S, Settles, Ronald, Stiegler, U, Stierlin, U, Thomas, J, Waltermann, G, Bertin, V, De Bouard, G, Boucrot, J, Callot, O, Chen, X, Cordier, A, Davier, M, Ganis, G, Grivaz, J F, Heusse, P, Janot, P, Journé, V, Kim, D W, Lefrançois, J, Lutz, A M, Veillet, J J, Zomer, F, Amendolia, S R, Bagliesi, G, Batignani, G, Bosisio, L, Bottigli, U, Bradaschia, C, Ferrante, I, Fidecaro, F, Foà, L, Focardi, E, Forti, F, Giassi, A, Giorgi, M A, Ligabue, F, Lusiani, A, Mannelli, E B, Marrocchesi, P S, Messineo, A, Palla, Fabrizio, Sanguinetti, G, Scapellato, S, Steinberger, Jack, Tenchini, Roberto, Tonelli, G, Triggiani, G, Carter, J M, Green, M G, March, P V, Medcalf, T, Saich, M R, Strong, J A, Thomas, R M, Wildish, T, Botterill, David R, Clifft, R W, Edgecock, T R, Edwards, M, Fisher, S M, Harvey, J, Jones, T J, Norton, P R, Salmon, D P, Thompson, J C, Bloch-Devaux, B, Colas, P, Klopfenstein, C, Lançon, E, Locci, E, Loucatos, Sotirios S, Mirabito, L, Monnier, E, Pérez, P, Perrier, F, Rander, J, Renardy, J F, Roussarie, A, Schuller, J P, Ashman, John Gavin, Booth, C N, Combley, F, Dinsdale, M, Martín, J, Parker, D, Thompson, L F, Brandt, S, Burkhardt, H, Grupen, Claus, Meinhard, H, Neugebauer, E, Schäfer, U, Seywerd, H C J, Gobbo, B, Liello, F, Milotti, E, Ragusa, F, Rolandi, Luigi, Barklow, Timothy L, Bellantoni, L, Boudreau, J F, Cinabro, D, Conway, J S, Cowen, D F, Feng, Z, Gao, Y S, Harton, J L, Hilgart, J M, Jared, R C, Johnson, R P, LeClaire, B W, Pan Yi Bin, Parker, T, Pater, J R, Saadi, Y, Sharma, V, Walsh, A M, Wear, J A, Weber, F V, Wu Sau Lan, Xue, S T, Zobernig, G, Decamp, D, Deschizeaux, B, Goy, C, Lees, Jp, Minard, Mn, Crespo, Jm, Delfino, M, Fernandez, E, Martinez, M, Miquel, R, Mir, Lm, Orteu, S, Pacheco, A, Perlas, Ja, Tubau, E, Catanesi, Mg, Depalma, M, Farilla, A, Iaselli, G, Maggi, G, Natali, S, Nuzzo, S, Ranieri, A, Raso, G, Romano, F, Ruggieri, F, Selvaggi, G, Silvestris, L, Tempesta, P, Zito, G, Gao, Y, Hu, H, Huang, D, Jin, S, Lin, J, Ruan, T, Wang, T, Wu, W, Xie, Y, Xu, D, Xu, R, Zhang, J, Zhang, Z, Zhao, W, Albrecht, H, Atwood, Wb, Bird, F, Blucher, E, Burnett, Th, Charity, T, Drevermann, H, Garrido, L, Grab, C, Hagelberg, R, Haywood, S, Jost, B, Kasemann, M, Kellner, G, Knobloch, J, Lacourt, A, Lehraus, I, Lohse, T, Luke, D, Marchioro, A, Mato, P, May, J, Minten, A, Miotto, A, Palazzi, P, Pepealtarelli, M, Ranjard, F, Roth, A, Rothberg, J, Rotscheidt, H, Vonruden, W, Stdenis, R, Schlatter, D, Takashima, M, Talby, M, Taureg, H, Tejessy, W, Wachsmuth, H, Wheeler, S, Wiedenmann, W, Witzeling, W, Wotschack, J, Ajaltouni, Z, Bardadinotwinowska, M, Falvard, A, Gay, P, Henrard, P, Jousset, J, Michel, B, Montret, Jc, Pallin, D, Perret, P, Proriol, J, Prulhiere, F, Hansen, Jd, Hansen, Jr, Hansen, Ph, Mollerud, R, Petersen, G, Simopoulou, E, Vayaki, A, Badier, J, Blondel, A, Bonneaud, G, Bourotte, J, Braems, F, Brient, Jc, Ciocci, Ma, Fouque, G, Guirlet, R, Rouge, A, Rumpf, M, Tanaka, R, Videau, H, Videau, I, Candlin, Dj, Conti, A, Parrini, G, Corden, M, Georgiopoulos, C, Goldman, Jh, Ikeda, M, Lannutti, J, Levinthal, D, Mermikides, M, Sawyer, L, Stimpfl, G, Antonelli, A, Baldini, R, Bencivenni, G, Bologna, G, Bossi, F, Campana, P, Capon, G, Chiarella, V, Deninno, G, Dettorrepiazzoli, B, Felici, G, Laurelli, P, Mannocchi, G, Murtas, F, Murtas, Gp, Nicoletti, G, Picchi, P, Zografou, P, Altoon, B, Boyle, O, Halley, Aw, Tenhave, I, Hearns, Jl, Hughes, I, Lynch, Jg, Morton, Wt, Raine, C, Scarr, Jm, Smith, K, Thompson, A, Brandl, B, Braun, O, Geiges, R, Geweniger, C, Hanke, P, Hepp, V, Kluge, Ee, Maumary, Y, Panter, M, Putzer, A, Rensch, B, Stahl, A, Tittel, K, Wunsch, M, Belk, At, Beuselinck, R, Binnie, Dm, Cameron, W, Cattaneo, M, Dornan, Pj, Dugeay, S, Forty, Rw, Greene, Am, Hassard, Jf, Patton, Sj, Sedgbeer, Jk, Taylor, G, Tomalin, Ir, Wright, Ag, Girtler, P, Kuhn, D, Rudolph, G, Bowdery, Ck, Brodbeck, Tj, Finch, Aj, Foster, F, Hughes, G, Keemer, Nr, Nuttall, M, Rowlingson, B, Sloan, T, Snow, Sw, Barczewski, T, Bauerdick, Lat, Kleinknecht, K, Renk, B, Roehn, S, Sander, Hg, Schmelling, M, Steeg, F, Albanese, Jp, Aubert, Jj, Benchouk, C, Bonissent, A, Courvoisier, D, Etienne, F, Matsinos, E, Papalexiou, S, Payre, P, Pietrzyk, B, Qian, Z, Blum, W, Cattaneo, P, Cowan, G, Dehning, B, Dietl, H, Fernandezbosman, M, Hauff, D, Jahn, A, Lange, E, Lutjens, G, Lutz, G, Manner, W, Moser, Hg, Pan, Y, Richter, R, Schwarz, A, Settles, R, Stiegler, U, Stierlin, U, Thomas, J, Waltermann, G, Bertin, V, Debouard, G, Boucrot, J, Callot, O, Chen, X, Cordier, A, Davier, M, Ganis, G, Grivaz, Jf, Heusse, P, Janot, P, Journe, V, Kim, Dw, Lefrancois, J, Lutz, Am, Veillet, Jj, Zomer, F, Amendolia, Sr, Bagliesi, G, Batignani, G, Bosisio, L, Bottigli, U, Bradaschia, C, Ferrante, I, Fidecaro, F, Foa, L, Focardi, E, Forti, F, Giassi, A, Giorgi, Ma, Ligabue, Franco, Lusiani, Alberto, Mannelli, Eb, Marrocchesi, P, Messineo, A, Palla, F, Sanguinetti, G, Scapellato, S, Steinberger, J, Tenchini, R, Tonelli, G, Triggiani, G, Carter, Jm, Green, Mg, March, Pv, Medcalf, T, Saich, Mr, Strong, Ja, Thomas, Rm, Wildish, T, Botterill, Dr, Clifft, Rw, Edgecock, Tr, Edwards, M, Fisher, Sm, Harvey, J, Jones, Tj, Norton, Pr, Salmon, Dp, Thompson, Jc, Blochdevaux, B, Colas, P, Klopfenstein, C, Lancon, E, Locci, E, Loucatos, S, Mirabito, L, Monnier, E, Perez, P, Perrier, F, Rander, J, Renardy, Jf, Roussarie, A, Schuller, Jp, Ashman, Jg, Booth, Cn, Combley, F, Dinsdale, M, Martin, J, Parker, D, Thompson, Lf, Brandt, S, Burkhardt, H, Grupen, C, Meinhard, H, Neugebauer, E, Schafer, U, Seywerd, H, Gobbo, B, Liello, F, Milotti, E, Ragusa, F, Rolandi, L, Barklow, T, Bellantoni, L, Boudreau, Jf, Cinabro, D, Conway, J, Cowen, Df, Feng, Z, Harton, Jl, Hilgart, J, Jared, Rc, Johnson, Rp, Leclaire, Bw, Pan, Yb, Parker, T, Pater, Jr, Saadi, Y, Sharma, V, Walsh, Am, Wear, Ja, Weber, Fv, Wu, Sl, Xue, St, and Zobernig, G.

Subjects
Physics, Nuclear and High Energy Physics, Particle physics, Emancipation, Notice, media_common.quotation_subject, ALEPH experimet, Higgs Boson, Consumption (sociology), Representation (politics), Nationalism, Political economy, Ideology, Interrogation, Communism, Particle Physics - Experiment, media_common
Abstract

The utilitarian representation of sport in Rumania, a brake in the development of leisure practice. Since the countries of central Europe entered the liberal sphere influence, the consumptions of possessions and services develop there. We observe a movement of tutellaire and ideological emancipation of the sports organizations, but the practice of popular physical activities delays developing. If, on the ground, we notice the appearance of an structured professionally offer, contrary to all expectations, it does not pull a real increase of consumption. This situation which rises in inferred paradox a cultural interrogation on the previous history of these brakes. Historically, the sport during the influence of communist sphere was enpreint of elitist and nationalist ideologies. An inquiry, made with the professionals of the forming in physical and sports education, moves closer to this weak development of the popular sports with the cultural inheritance of the country. The frame of sports of leisure in the representation that builds itself the professional actors, as the consumers, always revet a strongly utilitarian dimension which hinders its development. To develop the sports of leisure implies to integrate this peculiarity into the professionals of sports forming programme.

Published
1990

94. A Search For New Quarks and Leptons From Z0 Decay At Lep

Author

Decamp, D., Deschizeaux, B., Lees, J. -P., Minard, M. -N., Crespo, J. M., Delfino, M., Fernandez, E., Martinez, M., Miquel, R., Mir, Ll. M., Orteu, S., Pacheco, A., Perlas, J. A., Tubau, E., Catanesi, M. G., de Palma, M., Farilla, A., Iaselli, G., Maggi, G., Natali, S., Nuzzo, S., Ranieri, A., Raso, G., Romano, F., Ruggieri, F., Selvaggi, G., Silvestris, L., Tempesta, P., Zito, G., Hu, H., Huang, D., Lin, J., Ruan, T., Wang, T., Wu, W., Xie, Y., Xu, D., Xu, R., Zhang, J., Zhao, W., Albrecht, H., Atwood, W. B., Bird, F., Blucher, E., Burnett, T. H., Charity, T., Drevermann, H., Garrido, Ll., Grab, C., Hagelberg, R., Haywood, S., Jost, B., Kasemann, M., Kellner, G., Knobloch, J., Lacourt, A., Lehraus, I., Lohse, T., Lüke, D., Marchioro, A., Mato, P., May, J., Minten, A., Miotto, A., Palazzi, P., Pepe-Altarelli, M., Ranjard, F., Roth, A., Rothberg, J., Rotscheidt, H., von Rüden, W., St. Denis, R., Schlatter, D., Takashima, M., Talby, M., Taureg, H., Tejessy, W., Wachsmuth, H., Wheeler, S., Wiedenmann, W., Witzeling, W., Wotschack, J., Ajaltouni, Z., Bardadin-Otwinowska, M., Falvard, A., Gay, P., Henrard, P., Jousset, J., Michel, B., Montret, J. -C., Pallin, D., Perret, P., Proriol, J., Prulhière, F., Hansen, J. D., Hansen, J. R., Hansen, P. H., Møllerud, R., Petersen, G., Simopoulou, E., Vayaki, A., Badier, J., Blondel, A., Bonneaud, G., Bourotte, J., Braems, F., Brient, J. C., Ciocci, M. A., Fouque, G., Guirlet, R., Rougé, A., Rumpf, M., Tanaka, R., Videau, H., Videau, I., Candlin, D. J., Conti, A., Parrini, G., Corden, M., Georgiopoulos, C., Goldman, J. H., Ikeda, M., Lannutti, J., Levinthal, D., Mermikides, M., Sawyer, L., Stimpfl, G., Antonelli, A., Baldini, R., Bencivenni, G., Bologna, G., Bossi, F., Campana, P., Capon, G., Chiarella, V., de Ninno, G., D'Ettorre-Piazzoli, B., Felici, G., Laurelli, P., Mannocchi, G., Murtas, F., Murtas, G. P., Nicoletti, G., Picchi, P., Zografou, P., Altoon, B., Boyle, O., Halley, A. W., Ten Have, I., Hearns, J. L., Hughes, I. S., Lynch, J. G., Morton, W. T., Raine, C., Scarr, J. M., Smith, K., Thompson, A. S., Brandl, B., Braun, O., Geiges, R., Geweniger, C., Hanke, P., Hepp, V., Kluge, E. E., Maumary, Y., Panter, M., Putzer, A., Rensch, B., Stahl, A., Tittel, K., Wunsch, M., Belk, A. T., Beuselinck, R., Binnie, D. M., Cameron, W., Cattaneo, M., Dornan, P. J., Dugeay, S., Forty, R. W., Greene, A. M., Hassard, J. F., Patton, S. J., Sedgbeer, J. K., Taylor, G., Tomalin, I. R., Wright, A. G., Girtler, P., Kuhn, D., Rudolph, G., Bowdery, C. K., Brodbeck, T. J., Finch, A. J., Foster, F., Hughes, G., Keemer, N. R., Nuttall, M., Rowlingson, B. S., Sloan, T., Snow, S. W., Barczewski, T., Bauerdick, L. A. T., Kleinknecht, K., Renk, B., Roehn, S., Sander, H. -G., Schmelling, M., Steeg, F., Albanese, J. -P., Aubert, J. -J., Benchouk, C., Bonissent, A., Courvoisier, D., Etienne, F., Matsinos, E., Papalexiou, S., Payre, P., Pietrzyk, B., Qian, Z., Blum, W., Cattaneo, P., Cowan, G., Dehning, B., Dietl, H., Fernandez-Bosman, M., Hauff, D., Jahn, A., Lange, E., Lütjens, G., Lutz, G., Männer, W., Moser, H. -G., Pan, Y., Richter, R., Schwarz, A. S., Settles, R., Stiegler, U., Stierlin, U., Thomas, J., Waltermann, G., Bertin, V., de Bouard, G., Boucrot, J., Callot, O., Chen, X., Cordier, A., Davier, M., Ganis, G., Grivaz, J. -F., Heusse, Ph., Janot, P., Journé, V., Kim, D. W., Lefrançois, J., Lutz, A. -M., Veillet, J. -J., Zomer, F., Amendolia, S. R., Bagliesi, G., Batignani, G., Bosisio, L., Bottigli, U., Bradaschia, C., Ferrante, I., Fidecaro, F., Foà, L., Focardi, E., Forti, F., Giassi, A., Giorgi, M. A., Ligabue, F., Lusiani, A., Mannelli, E. B., Marrocchesi, P. S., Messineo, A., Palla, F., Sanguinetti, G., Scapellato, S., Steinberger, J., Tenchini, R., Tonelli, G., Triggiani, G., Carter, J. M., Green, M. G., March, P. V., Medcalf, T., Saich, M. R., Strong, J. A., Thomas, R. M., Wildish, T., Botterill, D. R., Clifft, R. W., Edgecock, T. R., Edwards, M., Fisher, S. M., Harvey, J., Jones, T. J., Norton, P. R., Salmon, D. P., Thompson, J. C., Aubourg, E., Bloch-Devaux, B., Colas, P., Klopfenstein, C., Lançon, E., Locci, E., Loucatos, S., Mirabito, L., Monnier, E., Perez, P., Perrier, F., Rander, J., Renardy, J. -F., Roussarie, A., Schuller, J. -P., Ashman, J. G., Booth, C. N., Combley, F., Dinsdale, M., Martin, J., Parker, D., Thompson, L. F., Brandt, S., Burkhardt, H., Grupen, C., Meinhard, H., Neugebauer, E., Schäfer, U., Seywerd, H., Gobbo, B., Liello, F., Milotti, E., Ragusa, F., Rolandi, L., Bellantoni, L., Boudreau, J. F., Cinabro, D., Conway, J. S., Cowen, D. F., Feng, Z., Harton, J. L., Hilgart, J., Jared, R. C., Johnson, R. P., Leclaire, B. W., Pan, Y. B., Parker, T., Pater, J. R., Saadi, Y., Sharma, V., Wear, J. A., Weber, F. V., Sau, Lan, Xue, S. T., Zobernig, G., Decamp, D, Deschizeaux, B, Lees, Jp, Minard, Mn, Crespo, Jm, Delfino, M, Fernandez, E, Martinez, M, Miquel, R, Mir, Lm, Orteu, S, Pacheco, A, Perlas, Ja, Tubau, E, Catanesi, Mg, Depalma, M, Farilla, A, Iaselli, G, Maggi, G, Natali, S, Nuzzo, S, Ranieri, A, Raso, G, Romano, F, Ruggieri, F, Selvaggi, G, Silvestris, L, Tempesta, P, Zito, G, Hu, H, Huang, D, Lin, J, Ruan, T, Wang, T, Wu, W, Xie, Y, Xu, D, Xu, R, Zhang, J, Zhao, W, Albrecht, H, Atwood, Wb, Bird, F, Blucher, E, Burnett, Th, Charity, T, Drevermann, H, Garrido, L, Grab, C, Hagelberg, R, Haywood, S, Jost, B, Kasemann, M, Kellner, G, Knobloch, J, Lacourt, A, Lehraus, I, Lohse, T, Luke, D, Marchioro, A, Mato, P, May, J, Minten, A, Miotto, A, Palazzi, P, Pepealtarelli, M, Ranjard, F, Roth, A, Rothberg, J, Rotscheidt, H, Vonruden, W, Stdenis, R, Schlatter, D, Takashima, M, Talby, M, Taureg, H, Tejessy, W, Wachsmuth, H, Wheeler, S, Wiedenmann, W, Witzeling, W, Wotschack, J, Ajaltouni, Z, Bardadinotwinowska, M, Falvard, A, Gay, P, Henrard, P, Jousset, J, Michel, B, Montret, Jc, Pallin, D, Perret, P, Proriol, J, Prulhiere, F, Hansen, Jd, Hansen, Jr, Hansen, Ph, Mollerud, R, Petersen, G, Simopoulou, E, Vayaki, A, Badier, J, Blondel, A, Bonneaud, G, Bourotte, J, Braems, F, Brient, Jc, Ciocci, Ma, Fouque, G, Guirlet, R, Rouge, A, Rumpf, M, Tanaka, R, Videau, H, Videau, I, Candlin, Dj, Conti, A, Parrini, G, Corden, M, Georgiopoulos, C, Goldman, Jh, Ikeda, M, Lannutti, J, Levinthal, D, Mermikides, M, Sawyer, L, Stimpfl, G, Antonelli, A, Baldini, R, Bencivenni, G, Bologna, G, Bossi, F, Campana, P, Capon, G, Chiarella, V, Deninno, G, Dettorrepiazzoli, B, Felici, G, Laurelli, P, Mannocchi, G, Murtas, F, Murtas, Gp, Nicoletti, G, Picchi, P, Zografou, P, Altoon, B, Boyle, O, Halley, Aw, Tenhave, I, Hearns, Jl, Hughes, I, Lynch, Jg, Morton, Wt, Raine, C, Scarr, Jm, Smith, K, Thompson, A, Brandl, B, Braun, O, Geiges, R, Geweniger, C, Hanke, P, Hepp, V, Kluge, Ee, Maumary, Y, Panter, M, Putzer, A, Rensch, B, Stahl, A, Tittel, K, Wunsch, M, Belk, At, Beuselinck, R, Binnie, Dm, Cameron, W, Cattaneo, M, Dornan, Pj, Dugeay, S, Forty, Rw, Greene, Am, Hassard, Jf, Patton, Sj, Sedgbeer, Jk, Taylor, G, Tomalin, Ir, Wright, Ag, Girtler, P, Kuhn, D, Rudolph, G, Bowdery, Ck, Brodbeck, Tj, Finch, Aj, Foster, F, Hughes, G, Keemer, Nr, Nuttall, M, Rowlingson, B, Sloan, T, Snow, Sw, Barczewski, T, Bauerdick, Lat, Kleinknecht, K, Renk, B, Roehn, S, Sander, Hg, Schmelling, M, Steeg, F, Albanese, Jp, Aubert, Jj, Benchouk, C, Bonissent, A, Courvoisier, D, Etienne, F, Matsinos, E, Papalexiou, S, Payre, P, Pietrzyk, B, Qian, Z, Blum, W, Cattaneo, P, Cowan, G, Dehning, B, Dietl, H, Fernandezbosman, M, Hauff, D, Jahn, A, Lange, E, Lutjens, G, Lutz, G, Manner, W, Moser, Hg, Pan, Y, Richter, R, Schwarz, A, Settles, R, Stiegler, U, Stierlin, U, Thomas, J, Waltermann, G, Bertin, V, Debouard, G, Boucrot, J, Callot, O, Chen, X, Cordier, A, Davier, M, Ganis, G, Grivaz, Jf, Heusse, P, Janot, P, Journe, V, Kim, Dw, Lefrancois, J, Lutz, Am, Veillet, Jj, Zomer, F, Amendolia, Sr, Bagliesi, G, Batignani, G, Bosisio, L, Bottigli, U, Bradaschia, C, Ferrante, I, Fidecaro, F, Foa, L, Focardi, E, Forti, F, Giassi, A, Giorgi, Ma, Ligabue, Franco, Lusiani, Alberto, Mannelli, Eb, Marrocchesi, P, Messineo, A, Palla, F, Sanguinetti, G, Scapellato, S, Steinberger, J, Tenchini, R, Tonelli, G, Triggiani, G, Carter, Jm, Green, Mg, March, Pv, Medcalf, T, Saich, Mr, Strong, Ja, Thomas, Rm, Wildish, T, Botterill, Dr, Clifft, Rw, Edgecock, Tr, Edwards, M, Fisher, Sm, Harvey, J, Jones, Tj, Norton, Pr, Salmon, Dp, Thompson, Jc, Aubourg, E, Blochdevaux, B, Colas, P, Klopfenstein, C, Lancon, E, Locci, E, Loucatos, S, Mirabito, L, Monnier, E, Perez, P, Perrier, F, Rander, J, Renardy, Jf, Roussarie, A, Schuller, Jp, Ashman, Jg, Booth, Cn, Combley, F, Dinsdale, M, Martin, J, Parker, D, Thompson, Lf, Brandt, S, Burkhardt, H, Grupen, C, Meinhard, H, Neugebauer, E, Schafer, U, Seywerd, H, Gobbo, B, Liello, F, Milotti, E, Ragusa, F, Rolandi, Luigi, Bellantoni, L, Boudreau, Jf, Cinabro, D, Conway, J, Cowen, Df, Feng, Z, Harton, Jl, Hilgart, J, Jared, Rc, Johnson, Rp, Leclaire, Bw, Pan, Yb, Parker, T, Pater, Jr, Saadi, Y, Sharma, V, Wear, Ja, Weber, Fv, Wu, Sl, Xue, St, and Zobernig, G.

Subjects
Quark, Physics, Nuclear and High Energy Physics, Aleph, Particle physics, 010308 nuclear & particles physics, Electron–positron annihilation, High Energy Physics::Phenomenology, 01 natural sciences, Lower limit, 0103 physical sciences, High Energy Physics::Experiment, Atomic physics, Nuclear Experiment, 010306 general physics, Charged current, Mixing (physics), Lepton
Abstract

A search for Z0 decays into pairs of possible new heavy quarks (t and b′), new heavy charged leptons (L±), stable heavy neutral leptons (νL) and unstable heavy neutral leptons (L0) is performed on data collected by the ALEPH detector corresponding to 11 550 events of Z0→hadrons. The limits on the masses of the heavy quarks are Mt > 45.8 GeV and Mb′ > 46.0 GeV, allowing for both charged-current and flavor-changing neutral-current decays of the b′. If an L± decays into a stable νL, then for MνL MνL. Finally, while the mass of the stable νL is excluded up to 42.7 GeV, the mass of the unstable L0 is excluded up to 45.7 GeV with the mixing parameters |UlL0|2 down to 10−13 at this mass. For 25.0 GeV < ML0 < 42.7 GeV, all values of |UlL0|2 are excluded. All limits are given at 95% CL.

Published
1990

95. HEAVY FLAVOR PRODUCTION IN Z DECAYS

Author

Décamp, D, Deschizeaux, B, Goy, C, Lees, J P, Minard, M N, Crespo, J M, Delfino, M C, Fernández, E, Mato, P, Miquel, R, Mir, L M, Orteu, S, Pacheco, A, Perlas, J A, Tubau, E, Catanesi, M G, De Palma, M, Farilla, A, Iaselli, Giuseppe, Maggi, G, Natali, S, Nuzzo, S, Ranieri, A, Raso, G, Romano, F, Ruggieri, F, Selvaggi, G, Silvestris, L, Tempesta, P, Zito, G, Gao, Y, Hu, H, Huang, D, Jin, S, Lin, J, Ruan, T, Wang, T, Wu, W, Xie, Y, Xu, D, Xu, R, Zhang, J, Zhang, Z, Zhao, W, Albrecht, H, Atwood, W B, Bird, F, Blucher, E, Brown, D, Burnett, T H, Drevermann, H, Dydak, Friedrich, Forty, Roger W, Garrido, L, Grab, C, Hagelberg, R, Haywood, S, Jost, B, Kasemann, M, Kellner, Gottfried, Knobloch, J, Lacourt, A, Lehraus, Ivan, Lohse, T, Lüke, D, Marchioro, A, Martínez, M, May, J, Menary, S R, Minten, Adolf G, Miotto, A, Palazzi, P, Pepé-Altarelli, M, Ranjard, F, Roth, A E, Rothberg, J E, Rotscheidt, Herbert, von Rüden, Wolfgang, Saint-Denis, R, Schlatter, W D, Takashima, M, Talby, M, Taureg, Hans, Tejessy, W, Wachsmuth, H W, Wasserbaech, S R, Wheeler, S, Wiedenmann, W, Witzeling, W, Wotschack, J, Ajaltouni, Ziad J, Bardadin-Otwinowska, Maria, Falvard, A, Gay, P, Henrard, P, Jousset, J, Michel, B, Montret, J C, Pallin, D, Perret, P, Proriol, J, Prulhière, F, Hansen, J D, Hansen, J R, Hansen, P H, Møllerud, R, Nilsson, B S, Petersen, G, Efthymiopoulos, I, Simopoulou, Errietta, Vayaki, Anna, Badier, J, Blondel, A, Bonneaud, G R, Bourotte, J, Braems, F, Brient, J C, Ciocci, M A, Fouque, G, Guirlet, R, Rougé, A, Rumpf, M, Tanaka, R, Videau, H L, Videau, I, Candlin, D J, Parrini, G, Corden, M, Georgiopoulos, C H, Ikeda, M, Lannutti, J E, Levinthal, D A, Mermikides, Michael E, Sawyer, L, Stimpfl, G, Antonelli, A, Baldini, R, Bencivenni, G, Bologna, G, Bossi, F, Campana, P, Capon, G, Chiarella, V, De Ninno, G, D'Ettorre-Piazzoli, B, Felici, G, Laurelli, P, Mannocchi, G, Murtas, F, Murtas, G P, Nicoletti, G, Passalacqua, L, Picchi, P, Zografou, P, Altoon, B, Boyle, O, Halley, A W, ten Have, I, Hearns, J A, Lynch, J G, Morton, W T, Raine, C, Scarr, J M, Smith, K, Thompson, A S, Brandl, B, Braun, O, Geiges, R, Geweniger, C, Hanke, P, Hepp, V, Kluge, E E, Krause, J, Maumary, Y, Panter, M, Putzer, A, Rensch, B, Stahl, A, Tittel, K, Wunsch, M, Belk, A T, Beuselinck, R, Binnie, David M, Cameron, W, Cattaneo, M, Dornan, Peter J, Dugeay, S, Greene, A M, Hassard, J F, Patton, S J, Sedgbeer, J K, Taylor, G, Tomalin, I R, Wright, A G, Girtler, P, Kuhn, D, Rudolph, G, Bowdery, C K, Brodbeck, T J, Finch, A J, Foster, F, Hughes, G, Keemer, N R, Nuttall, M, Rowlingson, B S, Sloan, Terence, Snow, S W, Barczewski, T, Bauerdick, L A T, Kleinknecht, K, Renk, B, Roehn, S, Sander, H G, Schmelling, M, Steeg, F, Albanese, J P, Aubert, Jean-Jacques, Benchouk, C, Bonissent, A, Courvoisier, D, Etienne, F, Matsinos, E, Papalexiou, S, Payre, P, Pietrzyk, B, Qian, Z, Blum, Walter, Cattaneo, Paolo Walter, Cowan, G D, Dehning, Bernd, Dietl, H, Fernández-Bosman, M, Jahn, A, Lange, E, Lütjens, G, Lutz, Gerhard, Männer, W, Moser, H G, Richter, R H, Schwarz, A, Settles, Ronald, Stiegler, U, Stierlin, U, Thomas, J, Bertin, V, De Bouard, G, Boucrot, J, Callot, O, Chen, X, Cordier, A, Davier, M, Ganis, G, Grivaz, J F, Heusse, P, Janot, P, Journé, V, Kim, D W, Lefrançois, J, Lutz, A M, Veillet, J J, Zomer, F, Amendolia, S R, Bagliesi, G, Batignani, G, Bosisio, L, Bottigli, U, Bradaschia, C, Ferrante, I, Fidecaro, F, Foà, L, Focardi, E, Forti, F, Giassi, A, Giorgi, M A, Ligabue, F, Lusiani, A, Mannelli, E B, Marrocchesi, P S, Messineo, A, Palla, Fabrizio, Sanguinetti, G, Steinberger, Jack, Tenchini, Roberto, Tonelli, G, Triggiani, G, Carter, J M, Green, M G, March, P V, Medcalf, T, Saich, M R, Strong, J A, Thomas, R M, Wildish, T, Botterill, David R, Clifft, R W, Edgecock, T R, Edwards, M, Fisher, S M, Harvey, J, Jones, T J, Norton, P R, Salmon, D P, Thompson, J C, Bloch-Devaux, B, Colas, P, Klopfenstein, C, Lançon, E, Locci, E, Loucatos, Sotirios S, Mirabito, L, Monnier, E, Pérez, P, Perrier, F, Rander, J, Renardy, J F, Roussarie, A, Schuller, J P, Ashman, John Gavin, Booth, C N, Combley, F, Dinsdale, M, Martín, J, Parker, D, Thompson, L F, Brandt, S, Burkhardt, H, Grupen, Claus, Meinhard, H, Neugebauer, E, Schäfer, U, Seywerd, H C J, Gobbo, B, Liello, F, Mansutti, A, Milotti, E, Rolandi, Luigi, Bellantoni, L, Boudreau, J F, Cinabro, D, Conway, J S, Cowen, D F, Feng, Z, Harton, J L, Hilgart, J M, Jared, R C, Johnson, R P, LeClaire, B W, Pan Yi Bin, Parker, T, Pater, J R, Saadi, Y, Sharma, V, Wear, J A, Weber, F V, Wu Sau Lan, Xue, S T, Zobernig, G, Decamp, D, Deschizeaux, B, Goy, C, Lees, Jp, Minard, Mn, Crespo, Jm, Delfino, M, Fernandez, E, Mato, P, Miquel, R, Mir, Lm, Orteu, S, Pacheco, A, Perlas, Ja, Tubau, E, Catanesi, Mg, Depalma, M, Farilla, A, Iaselli, G, Maggi, G, Natali, S, Nuzzo, S, Ranieri, A, Raso, G, Romano, F, Ruggieri, F, Selvaggi, G, Silvestris, L, Tempesta, P, Zito, G, Gao, Y, Hu, H, Huang, D, Jin, S, Lin, J, Ruan, T, Wang, T, Wu, W, Xie, Y, Xu, D, Xu, R, Zhang, J, Zhang, Z, Zhao, W, Albrecht, H, Atwood, Wb, Bird, F, Blucher, E, Brown, D, Burnett, Th, Drevermann, H, Dydak, F, Forty, Rw, Garrido, L, Grab, C, Hagelberg, R, Haywood, S, Jost, B, Kasemann, M, Kellner, G, Knobloch, J, Lacourt, A, Lehraus, I, Lohse, T, Luke, D, Marchioro, A, Martinez, M, May, J, Menary, S, Minten, A, Miotto, A, Palazzi, P, Pepealtarelli, M, Ranjard, F, Roth, A, Rothberg, J, Rotscheidt, H, Vonruden, W, Stdenis, R, Schlatter, D, Takashima, M, Talby, M, Taureg, H, Tejessy, W, Wachsmuth, H, Wasserbaech, S, Wheeler, S, Wiedenmann, W, Witzeling, W, Wotschack, J, Ajaltouni, Z, Bardadinotwinowska, M, Falvard, A, Gay, P, Henrard, P, Jousset, J, Michel, B, Montret, Jc, Pallin, D, Perret, P, Proriol, J, Prulhiere, F, Hansen, Jd, Hansen, Jr, Hansen, Ph, Mollerud, R, Nilsson, B, Petersen, G, Efthymiopoulos, I, Simopoulou, E, Vayaki, A, Badier, J, Blondel, A, Bonneaud, G, Bourotte, J, Braems, F, Brient, Jc, Ciocci, Ma, Fouque, G, Guirlet, R, Rouge, A, Rumpf, M, Tanaka, R, Videau, H, Videau, I, Candlin, Dj, Parrini, G, Corden, M, Georgiopoulos, C, Ikeda, M, Lannutti, J, Levinthal, D, Mermikides, M, Sawyer, L, Stimpfl, G, Antonelli, A, Baldini, R, Bencivenni, G, Bologna, G, Bossi, F, Campana, P, Capon, G, Chiarella, V, Deninno, G, Dettorrepiazzoli, B, Felici, G, Laurelli, P, Mannocchi, G, Murtas, F, Murtas, Gp, Nicoletti, G, Passalacqua, L, Picchi, P, Zografou, P, Altoon, B, Boyle, O, Halley, Aw, Tenhave, I, Hearns, Jl, Lynch, Jg, Morton, Wt, Raine, C, Scarr, Jm, Smith, K, Thompson, A, Brandl, B, Braun, O, Geiges, R, Geweniger, C, Hanke, P, Hepp, V, Kluge, Ee, Maumary, Y, Panter, M, Putzer, A, Rensch, B, Stahl, A, Tittel, K, Wunsch, M, Belk, At, Beuselinck, R, Binnie, Dm, Cameron, W, Cattaneo, M, Dornan, Pj, Dugeay, S, Greene, Am, Hassard, Jf, Patton, Sj, Sedgbeer, Jk, Taylor, G, Tomalin, Ir, Wright, Ag, Girtler, P, Kuhn, D, Rudolph, G, Bowdery, Ck, Brodbeck, Tj, Finch, Aj, Foster, F, Hughes, G, Keemer, Nr, Nuttall, M, Rowlingson, B, Sloan, T, Snow, Sw, Barczewski, T, Bauerdick, Lat, Kleinknecht, K, Renk, B, Roehn, S, Sander, Hg, Schmelling, M, Steeg, F, Albanese, Jp, Aubert, Jj, Benchouk, C, Bonissent, A, Courvoisier, D, Etienne, F, Matsinos, E, Papalexiou, S, Payre, P, Pietrzyk, B, Qian, Z, Blum, W, Cattaneo, P, Cowan, G, Dehning, B, Dietl, H, Fernandezbosman, M, Jahn, A, Lange, E, Lutjens, G, Lutz, G, Manner, W, Moser, Hg, Pan, Y, Richter, R, Schwarz, A, Settles, R, Stiegler, U, Stierlin, U, Thomas, J, Bertin, V, Debouard, G, Boucrot, J, Callot, O, Chen, X, Cordier, A, Davier, M, Ganis, G, Grivaz, Jf, Heusse, P, Janot, P, Journe, V, Kim, Dw, Lefrancois, J, Lutz, Am, Veillet, Jj, Zomer, F, Amendolia, Sr, Bagliesi, G, Batignani, G, Bosisio, L, Bottigli, U, Bradaschia, C, Ferrante, I, Fidecaro, F, Foa, L, Focardi, E, Forti, F, Giassi, A, Giorgi, Ma, Ligabue, Franco, Lusiani, Alberto, Mannelli, Eb, Marrocchesi, P, Messineo, A, Palla, F, Sanguinetti, G, Steinberger, J, Tenchini, R, Tonelli, G, Triggiani, G, Carter, Jm, Green, Mg, March, Pv, Medcalf, T, Saich, Mr, Strong, Ja, Thomas, Rm, Wildish, T, Botterill, Dr, Clifft, Rw, Edgecock, Tr, Edwards, M, Fisher, Sm, Harvey, J, Jones, Tj, Norton, Pr, Salmon, Dp, Thompson, Jc, Blochdevaux, B, Colas, P, Klopfenstein, C, Lancon, E, Locci, E, Loucatos, S, Mirabito, L, Monnier, E, Perez, P, Perrier, F, Rander, J, Renardy, Jf, Roussarie, A, Schuller, Jp, Ashman, Jg, Booth, Cn, Combley, F, Dinsdale, M, Martin, J, Parker, D, Thompson, Lf, Brandt, S, Burkhardt, H, Grupen, C, Meinhard, H, Neugebauer, E, Schafer, U, Seywerd, H, Gobbo, B, Liello, F, Milotti, E, Rolandi, Luigi, Bellantoni, L, Boudreau, Jf, Cinabro, D, Conway, J, Cowen, Df, Feng, Z, Harton, Jl, Hilgart, J, Jared, Rc, Johnson, Rp, Leclaire, Bw, Pan, Yb, Parker, T, Pater, Jr, Saadi, Y, Sharma, V, Wear, Ja, Weber, Fv, Wu, Sl, Xue, St, and Zobernig, G.

Subjects
Physics, Nuclear physics, Nuclear and High Energy Physics, Branching fraction, Flavour, Hadron, Analytical chemistry, Particle Physics - Experiment, Lepton, Standard Model
Abstract

From an analysis of inclusive leptons in data collected by the ALEPH detector at LEP, we measure the fractions of b b and c c events in hadronic Z decays. The b b fraction times semileptonic branching ratio is measured to be Br ( b → e )·Γ b b /Γ had = 0.0224 ± 0.0016 ± 0.0010 . Assuming a b semileptonic branching ratio of 0.102 ± 0.010 gives Γ b b /Γ had = 0.220 ± 0.016 ± 0.024 , in good agreement with the standard model prediction of 0.217. The c c fraction times semileptonic branching ratio is measured to be Br ( c → e )·Γ c c /Γ had = 0.0133 ± 0.0040 −0.0031 +0.0038 . Assuming a c semileptonic branching ratio of 0.090 ± 0.013 gives Γ c c /Γ had = 0.148 ± 0.044 −0.038 +0.045 , in agreement with the standard model prediction of 0.171.

Published
1990

96. Can the distinction between intentional and unintentional interference control help differentiate varieties of impulsivity?

Author

Gay, Philippe, Courvoisier, D. S., Billieux, Joël, Rochat, Lucien, Schmidt, Ralph Erich, Van der Linden, Martial, Gay, Philippe, Courvoisier, D. S., Billieux, Joël, Rochat, Lucien, Schmidt, Ralph Erich, and Van der Linden, Martial

Abstract

It has recently been shown that perseverance specifically relates to resisting proactive interference [Gay, P., Rochat, L., Billieux, J., d'Acremont, M., & Van der Linden, M. (2008). Heterogeneous inhibition processes involved in different facets of self-reported impulsivity: Evidence from a community sample. Acta Psychologica, 129, 332-339]. The aim of this study was to replicate and extend this finding by investigating the relationships between unintentional control of interference (in a recent-negatives task), intentional control of interference (in a directed-forgetting task), and the four facets of impulsivity. The performance of 71 volunteers indicated that the relevant variables of the two tasks shared very little or no variance. In particular, regression analyses showed that lower perseverance (i.e., higher impulsivity on this facet) predicted more interference-related errors in both tasks and less time dedicated to resolving proactive interference; however, lower perseverance did not predict directed-forgetting cost. Higher urgency predicted higher interference time due to response-conflict. © 2009 Elsevier Inc.

Published
2010

100. Meta-analysis of two-arm studies: Modeling the intervention effect from survival probabilities.

Author

Combescure, C., Courvoisier, D. S., Haller, G., and Perneger, T. V.

Subjects
*META-analysis, *SURVIVAL analysis (Biometry), *HAZARD function (Statistics), *PROPORTIONAL hazards models, *RANDOM effects model, *BREAST tumor diagnosis, *BREAST tumors, *CANCER relapse, *COMPARATIVE studies, *RESEARCH methodology, *MEDICAL cooperation, *PROGNOSIS, *RESEARCH, *TIME, *EVALUATION research, *ACUTE myeloid leukemia, *EARLY detection of cancer, *DIAGNOSIS
Abstract

Pooling the hazard ratios is not always feasible in meta-analyses of two-arm survival studies, because the measure of the intervention effect is not systematically reported. An alternative approach proposed by Moodie et al. is to use the survival probabilities of the included studies, all collected at a single point in time: the intervention effect is then summarised as the pooled ratio of the logarithm of survival probabilities (which is an estimator of the hazard ratios when hazards are proportional). In this article, we propose a generalization of this method. By using survival probabilities at several points in time, this generalization allows a flexible modeling of the intervention over time. The method is applicable to partially proportional hazards models, with the advantage of not requiring the specification of the baseline survival. As in Moodie et al.'s method, the study-level factors modifying the survival functions can be ignored as long as they do not modify the intervention effect. The procedures of estimation are presented for fixed and random effects models. Two illustrative examples are presented. [ABSTRACT FROM AUTHOR]

Published
2016
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