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1. Measurement of the electron structure function F2e at LEP energies

Author

J. Abdallah, P. Abreu, W. Adam, P. Adzic, T. Albrecht, R. Alemany-Fernandez, T. Allmendinger, P.P. Allport, U. Amaldi, N. Amapane, S. Amato, E. Anashkin, A. Andreazza, S. Andringa, N. Anjos, P. Antilogus, W-D. Apel, Y. Arnoud, S. Ask, B. Asman, J.E. Augustin, A. Augustinus, P. Baillon, A. Ballestrero, P. Bambade, R. Barbier, D. Bardin, G.J. Barker, A. Baroncelli, M. Battaglia, M. Baubillier, K-H. Becks, M. Begalli, A. Behrmann, K. Belous, E. Ben-Haim, N. Benekos, A. Benvenuti, C. Berat, M. Berggren, D. Bertrand, M. Besancon, N. Besson, D. Bloch, M. Blom, M. Bluj, M. Bonesini, M. Boonekamp, P.S.L. Booth, G. Borisov, O. Botner, B. Bouquet, T.J.V. Bowcock, I. Boyko, M. Bracko, R. Brenner, E. Brodet, P. Bruckman, J.M. Brunet, B. Buschbeck, P. Buschmann, M. Calvi, T. Camporesi, V. Canale, F. Carena, N. Castro, F. Cavallo, M. Chapkin, Ph. Charpentier, P. Checchia, R. Chierici, P. Chliapnikov, J. Chudoba, S.U. Chung, K. Cieslik, P. Collins, R. Contri, G. Cosme, F. Cossutti, M.J. Costa, D. Crennell, J. Cuevas, J. D'Hondt, T. da Silva, W. Da Silva, G. Della Ricca, A. De Angelis, W. De Boer, C. De Clercq, B. De Lotto, N. De Maria, A. De Min, L. de Paula, L. Di Ciaccio, A. Di Simone, K. Doroba, J. Drees, G. Eigen, T. Ekelof, M. Ellert, M. Elsing, M.C. Espirito Santo, G. Fanourakis, D. Fassouliotis, M. Feindt, J. Fernandez, A. Ferrer, F. Ferro, U. Flagmeyer, H. Foeth, E. Fokitis, F. Fulda-Quenzer, J. Fuster, M. Gandelman, C. Garcia, Ph. Gavillet, E. Gazis, R. Gokieli, B. Golob, G. Gomez-Ceballos, P. Gonçalves, E. Graziani, G. Grosdidier, K. Grzelak, J. Guy, C. Haag, A. Hallgren, K. Hamacher, K. Hamilton, S. Haug, F. Hauler, V. Hedberg, M. Hennecke, J. Hoffman, S-O. Holmgren, P.J. Holt, M.A. Houlden, J.N. Jackson, G. Jarlskog, P. Jarry, D. Jeans, E.K. Johansson, P. Jonsson, C. Joram, L. Jungermann, F. Kapusta, S. Katsanevas, E. Katsoufis, G. Kernel, B.P. Kersevan, U. Kerzel, B.T. King, N.J. Kjaer, P. Kluit, P. Kokkinias, C. Kourkoumelis, O. Kouznetsov, Z. Krumstein, M. Kucharczyk, J. Lamsa, G. Leder, F. Ledroit, L. Leinonen, R. Leitner, J. Lemonne, V. Lepeltier, T. Lesiak, W. Liebig, D. Liko, A. Lipniacka, J.H. Lopes, J.M. Lopez, D. Loukas, P. Lutz, L. Lyons, J. MacNaughton, A. Malek, S. Maltezos, F. Mandl, J. Marco, R. Marco, B. Marechal, M. Margoni, J-C. Marin, C. Mariotti, A. Markou, C. Martinez-Rivero, J. Masik, N. Mastroyiannopoulos, F. Matorras, C. Matteuzzi, F. Mazzucato, M. Mazzucato, R. Mc Nulty, C. Meroni, E. Migliore, W. Mitaroff, U. Mjoernmark, T. Moa, M. Moch, K. Moenig, R. Monge, J. Montenegro, D. Moraes, S. Moreno, P. Morettini, U. Mueller, K. Muenich, M. Mulders, L. Mundim, W. Murray, B. Muryn, G. Myatt, T. Myklebust, M. Nassiakou, F. Navarria, K. Nawrocki, S. Nemecek, R. Nicolaidou, M. Nikolenko, A. Oblakowska-Mucha, V. Obraztsov, A. Olshevski, A. Onofre, R. Orava, K. Osterberg, A. Ouraou, A. Oyanguren, M. Paganoni, S. Paiano, J.P. Palacios, H. Palka, Th.D. Papadopoulou, L. Pape, C. Parkes, F. Parodi, U. Parzefall, A. Passeri, O. Passon, L. Peralta, V. Perepelitsa, A. Perrotta, A. Petrolini, J. Piedra, L. Pieri, F. Pierre, M. Pimenta, E. Piotto, T. Podobnik, V. Poireau, M.E. Pol, G. Polok, V. Pozdniakov, N. Pukhaeva, A. Pullia, D. Radojicic, P. Rebecchi, J. Rehn, D. Reid, R. Reinhardt, P. Renton, F. Richard, J. Ridky, M. Rivero, D. Rodriguez, A. Romero, P. Ronchese, P. Roudeau, T. Rovelli, V. Ruhlmann-Kleider, D. Ryabtchikov, A. Sadovsky, L. Salmi, J. Salt, C. Sander, A. Savoy-Navarro, U. Schwickerath, R. Sekulin, M. Siebel, A. Sisakian, W. Slominski, G. Smadja, O. Smirnova, A. Sokolov, A. Sopczak, R. Sosnowski, T. Spassov, M. Stanitzki, A. Stocchi, J. Strauss, B. Stugu, M. Szczekowski, M. Szeptycka, T. Szumlak, J. Szwed, T. Tabarelli, F. Tegenfeldt, J. Timmermans, L. Tkatchev, M. Tobin, S. Todorovova, B. Tomé, A. Tonazzo, P. Tortosa, P. Travnicek, D. Treille, G. Tristram, M. Trochimczuk, C. Troncon, M-L. Turluer, I.A. Tyapkin, P. Tyapkin, S. Tzamarias, V. Uvarov, G. Valenti, P. Van Dam, J. Van Eldik, N. van Remortel, I. Van Vulpen, G. Vegni, F. Veloso, W. Venus, P. Verdier, V. Verzi, D. Vilanova, L. Vitale, V. Vrba, H. Wahlen, A.J. Washbrook, C. Weiser, D. Wicke, J. Wickens, G. Wilkinson, M. Winter, M. Witek, O. Yushchenko, A. Zalewska, P. Zalewski, D. Zavrtanik, V. Zhuravlov, N.I. Zimin, A. Zintchenko, and M. Zupan

Subjects
Physics, QC1-999
Abstract

The hadronic part of the electron structure function F2e has been measured for the first time, using e+e− data collected by the DELPHI experiment at LEP, at centre-of-mass energies of s=91.2–209.5 GeV. The data analysis is simpler than that of the measurement of the photon structure function. The electron structure function F2e data are compared to predictions of phenomenological models based on the photon structure function. It is shown that the contribution of large target photon virtualities is significant. The data presented can serve as a cross-check of the photon structure function F2γ analyses and help in refining existing parameterisations.

Published
2014
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2. Acute myeloid leukemia patients’ clinical response to idasanutlin (RG7388) is associated with pre-treatment MDM2 protein expression in leukemic blasts

Author

Bernhard Reis, Lori Jukofsky, Gong Chen, Giovanni Martinelli, Hua Zhong, W. Venus So, Michael J. Dickinson, Mark Drummond, Sarit Assouline, Maneja Hashemyan, Michel Theron, Steven Blotner, Je-Hwan Lee, Margaret Kasner, Sung-Soo Yoon, Ruediger Rueger, Karen Seiter, Steven A. Middleton, Kevin R. Kelly, Norbert Vey, Karen Yee, Gwen Nichols, Lin-Chi Chen, and William E. Pierceall

Subjects
Diseases of the blood and blood-forming organs, RC633-647.5
Published
2016
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4. Prediction of standard cell types and functional markers from textual descriptions of flow cytometry gating definitions using machine learning

Author

Raul Rodriguez‐Esteban, José Duarte, Priscila C. Teixeira, Fabien Richard, Svetlana Koltsova, and W. Venus So

Subjects
Machine Learning, Histology, Humans, Cell Biology, Flow Cytometry, Workflow, Pathology and Forensic Medicine
Abstract

A key step in clinical flow cytometry data analysis is gating, which involves the identification of cell populations. The process of gating produces a set of reportable results, which are typically described by gating definitions. The non-standardized, non-interpreted nature of gating definitions represents a hurdle for data interpretation and data sharing across and within organizations. Interpreting and standardizing gating definitions for subsequent analysis of gating results requires a curation effort from experts. Machine learning approaches have the potential to help in this process by predicting expert annotations associated with gating definitions.We created a gold-standard dataset by manually annotating thousands of gating definitions with cell type and functional marker annotations. We used this dataset to train and test a machine learning pipeline able to predict standard cell types and functional marker genes associated with gating definitions.The machine learning pipeline predicted annotations with high accuracy for both cell types and functional marker genes. Accuracy was lower for gating definitions from assays belonging to laboratories from which limited or no prior data was available in the training. Manual error review ensured that resulting predicted annotations could be reused subsequently as additional gold-standard training data.Machine learning methods are able to consistently predict annotations associated with gating definitions from flow cytometry assays. However, a hybrid automatic and manual annotation workflow would be recommended to achieve optimal results.

Published
2022

6. Prediction of standard cell types and functional markers from flow cytometry gating definitions using machine learning

Author

Priscila Camillo Teixeira, Svetlana Koltsova, Fabien Richard, Raul Rodriguez-Esteban, W. Venus So, and Jose Duarte

Subjects
Standard cell, business.industry, Computer science, Process (engineering), Gating, Machine learning, computer.software_genre, Pipeline (software), Set (abstract data type), Data sharing, Identification (information), Workflow, Artificial intelligence, business, computer
Abstract

BackgroundA key step in clinical flow cytometry data analysis is gating, which involves the identification of cell populations. The process of gating produces a set of reportable results, which are typically described by gating definitions. The non-standardized, non-interpreted nature of gating definitions represents a hurdle for data interpretation and data sharing across and within organizations. Interpreting and standardizing gating definitions for subsequent analysis of gating results requires a curation effort from experts. Machine learning approaches have the potential to help in this process by predicting expert annotations associated with gating definitions.MethodsWe created a gold-standard dataset by manually annotating thousands of gating definitions with cell type and functional marker annotations. We used this dataset to train and test a machine learning pipeline able to predict standard cell types and functional marker genes associated with gating definitions.ResultsThe machine learning pipeline predicted annotations with high accuracy for both cell types and functional marker genes. Accuracy was lower for gating definitions from assays belonging to laboratories from which limited or no prior data was available in the training. Manual error review ensured that resulting predicted annotations could be reused subsequently as additional gold-standard training data.ConclusionsMachine learning methods are able to consistently predict annotations associated with gating definitions from flow cytometry assays. However, a hybrid automatic and manual annotation workflow would be recommended to achieve optimal results.

Published
2021

7. Lack of UGT polymorphism association with idasanutlin pharmacokinetics in solid tumor patients

Author

Tai-Hsien Ou Yang, Jianguo Zhi, W Venus So, and Xing Yang

Subjects
0301 basic medicine, Cancer Research, Pyrrolidines, Idasanutlin, Short Communication, Glucuronidation, Single-nucleotide polymorphism, Biology, Pharmacology, Toxicology, Polymorphism, Single Nucleotide, digestive system, 03 medical and health sciences, 0302 clinical medicine, Neoplasms, Genotype, para-Aminobenzoates, Humans, SNP, Tissue Distribution, Pharmacology (medical), Polymorphism, Glucuronosyltransferase, Allele, Genotyping, Genetic association, MDM2 antagonist, Haplotype, Proto-Oncogene Proteins c-mdm2, Prognosis, 030104 developmental biology, Oncology, 030220 oncology & carcinogenesis, UGT
Abstract

Purpose Idasanutlin is a selective small-molecule MDM2 antagonist. It activates the tumor suppressor TP53 and is in phase 3 clinical trial for acute myeloid leukemia. Nonclinical studies have shown that glucuronidation is the major metabolizing mechanism for idasanutlin and UGT1A3 is the major metabolizing enzyme. There are reported examples of UGT polymorphisms associated with drug metabolism or response. Thus, the aim of this analysis is to investigate if UGT polymorphism is associated with idasanutlin pharmacokinetics. Method Idasanutlin clearance was derived and normalized from two phase I studies. Its clearance level was compared between patients with different genotypes at 44 non-monomorphic UGT SNPs. Several single-locus and multi-locus association analysis, including haplotype association analysis and pairwise SNP interaction (epistasis) analyses were performed to investigate if there is any association between UGT genotypes and idasanutlin clearance. Results and conclusion A total of 69 patients who have both idasanutlin pharmacokinetic data and UGT genotyping data were analyzed for association. The major clearance enzyme for idasanutlin, UGT1A3, has no association with idasanutlin clearance. Further single-locus and multi-locus association analyses also suggest that no significant UGT polymorphism association with idasanutlin clearance can be detected with the current datasets. However, the possibility of association with rare allele(s) of UGT family genes cannot be excluded due to the limited sample size of the current phase I studies.

Published
2018

8. Phosphoinositide signalling links O-GlcNAc transferase to insulin resistance

Author

Yang, Xiaoyong, Ongusaha, Pat P., Miles, Philip D., Havstad, Joyce C., Zhang, Fengxue, So, W. Venus W., Kudlow, Jeffrey E., Michell, Robert H., Olefsky, Jerrold M., Field, Seth J., and Evans, Ronald M.

Subjects
Environmental issues, Science and technology, Zoology and wildlife conservation
Abstract

Glucose flux through the hexosamine biosynthetic pathway leads to the post-translational modification of cytoplasmic and nuclear proteins by O-linked β-N-acetylglucosamine (O-GlcNAc). This tandem system serves as a nutrient sensor to [...]

Published
2008

10. A handbook of Nebraska grasses; with illustrated keys for their identification, together with a general account of their structure and economic importance.

Author

Wilcox, E. Mead (Edwin Mead), 1876-1931, Link, George K. K. (George Konrad Karl), 1888, Pool, Venus W. (Venus Worrell), 1882, New York Botanical Garden, LuEsther T. Mertz Library, Wilcox, E. Mead (Edwin Mead), 1876-1931, Link, George K. K. (George Konrad Karl), 1888, and Pool, Venus W. (Venus Worrell), 1882

Subjects
Gramineae, Identification, Nebraska
Published
1915

11. A handbook of Nebraska grasses; with illustrated keys for their identification, together with a general account of their structure and economic importance

Author

Wilcox, E. Mead (Edwin Mead), 1876-1931, Link, George K. K. (George Konrad Karl), 1888, Pool, Venus W. (Venus Worrell), 1882, New York Botanical Garden, LuEsther T. Mertz Library, Wilcox, E. Mead (Edwin Mead), 1876-1931, Link, George K. K. (George Konrad Karl), 1888, and Pool, Venus W. (Venus Worrell), 1882

Subjects
Gramineae, Identification, Nebraska

13. CYCLE is a second bHLH-PAS clock protein essential for circadian rhythmicity and transcription of Drosophila period and timeless

Author

Rutila, Joan E., Suri, Vipin, Le, Myai, So, W. Venus, Rosbash, Michael, and Hall, Jeffrey C.

Subjects
Drosophila -- Genetic aspects, Circadian rhythms -- Genetic aspects, Biological sciences
Abstract

The innovative Drosophila clock gene, cycle (cyc), was identified, characterized and cloned to analyze its behavioral and molecular phenotype. The cyc, which exhibits little per and tim genes transcription, also has an arrhythmic behavior similar to that of the dClock gene. By cloning the cyc gene, it encodes a bHLH-PAS transcription factor which is also analogous to the dClock gene's transcription factor.

Published
1998

14. A mutant Drosophila homolog of mammalian Clock disrupts circadian rhythms and transcription of period and timeless

Author

Allada, Ravi, White, Neal E., So, W. Venus, Hall, Jeffrey C., and Rosbash, Michael

Subjects
Drosophila -- Genetic aspects, Circadian rhythms -- Genetic aspects, Biological sciences
Abstract

The novel arrhythmic Drosophila mutant JRk, which is later called dClock, disrupts the circadian rhythms and cycling transcription of the per and tim genes. The mutation of the gene results in the termination of codon that truncates the protein and in turn, deletes most of the putative C-terminal activation domain. The mutant phenotype which resulted from premature halt of codon consistently reveals truncated features.

Published
1998

16. Measurement of the lifetime of tau-lepton

Author

U. Mjoernmark, Edoardo Castelli, F. Pierre, P. Allen, G. W. Van Apeldoorn, R. J. Apsimon, L. Ventura, V. Ruhlmann, Roland Horisberger, L. Bugge, D. Z. Toet, G. Hamel de Monchenault, Andrey Korytov, G. Ekspong, Itzhak Roditi, Gueorgui Chelkov, Pierre Juillot, M. De Beer, M. Bonesini, Y. Sacquin, Josef Strauss, M.A. Lopez Aguera, Francesca Romana Cavallo, Hans Muller, B. Koene, J.A.M.A. Buytaert, W. Venus, L. Di Ciaccio, Jan Krolikowski, N. N. Khovanski, Mitchell Wayne, M. S. Bilenky, G. Tristam, L.J. Carroll, W. Bartl, R. Pain, P. N. Bogolubov, M. J. Bates, J. A. Valls Ferrer, Giovanni Darbo, Christine Kourkoumelis, P. Siegrist, V. V. Lapin, N. Crosland, S. Simonetti, M. Begalli, E. Dahl-Jensen, Paolo Morettini, J. G. Loken, C. De Clercq, Klaus Hamacher, J. P. Laugier, Natale Demaria, R. Lucock, M. Richardson, G. Meola, Toralf Bernhard Skaali, M. Boratav, D. Gamba, P. Beilliere, M. Battaglia, T. Bolognese, W. J. Murray, R. Strub, J-C. Marin, Spyros Tzamarias, G. Cosme, A. Perrotta, G. Borisov, George Kalkanis, P. B. Renton, G. Voulgaris, M. Pimenta, B. A. Khomenko, M. Baubillier, V. Canale, S. Gumenyuk, R. A. Brenner, Stavros Maltezos, M. Bonapart, O. Barring, Y. Dufour, P. D. Dauncey, Sandor Czellar, D. C. Fries, Patrick Jarry, S. J. Alvsvaag, C. Vander Velde, N. De Groot, G. Rinaudo, G. Sette, A. Elliot Peisert, A. Stocchi, Francesco Navarria, J. Zúñiga, P. Astier, W. Bonivento, P. Weilhammer, A. M. Zaitsev, Alexander Vodopyanov, F. Bianchi, G. Vegni, N. Brummer, J. Bjarne, P. O. Hulth, T. Tabarelli, P. Van Dam, M. Davenport, G. Polok, A. Ruiz, Winfried Mitaroff, E. Lieb, P. Antilogus, C. Lambropoulos, Ugo Amaldi, W. De Boer, E. Zevgolatakos, G. Matthiae, Marta Calvi, P. Delpierre, I. Herbst, M. Matveev, R. Mc Nulty, I. Lippi, W. Kucewicz, E. K. Johansson, J. Pyyhtia, Geoffrey Smith, D. Johnson, Louis Lyons, W. Klempt, Renato Turchetta, H. De Boeck, S. Tavernier, G. Wormser, E. Daubie, G. E. Theodosiou, Mogens Dam, D. Fassouliotis, Ariella Cattai, F. Couchot, M. Kopf, M. Tyndel, S. C. Blyth, O. Pingot, G. Wilkinson, M.D.M. De Fez Laso, Juan Fuster, Jacques Lemonne, J. Sanchez, C. Bosio, E.N. Tsyganov, J. H. Wickens, Jose Luis Contreras, T. Kreuzberger, J. Derkaoui, S. Braibant, S. Dagoret, F. Stichelbaut, D. Zavrtanik, A. Tilquin, S. O. Holmgren, L. S. Vertogradov, J. Maillard, M. T. Trainor, P. Vaz, R. Sosnowski, O. Ullaland, Leif J. Jönsson, G. Myatt, F. Adami, V. G. Timofeev, A. G. Frodesen, Pawel Jalocha, Barry King, G. Smadja, L. Mathis, D. Husson, Ugo Gasparini, A. Pullia, J.M. Gago, D. Bertrand, J. Timmermans, I. A. Tyapkin, B.D. Hyams, T. S. Spassoff, Torsten Paul Ake Åkesson, Demetrios Loukas, R. Keranen, Philippe Charpentier, Francisco Matorras, N. Yamdagni, U. Trevisan, H. Furstenau, R. Frühwirth, L. O. Eek, R. C. Shellard, Josef Hrubec, A. M. Segar, A. G. Olshevski, B. Boštjančič, V. Perevozchikov, Theodora Papadopoulou, B. Korzen, Jon Christopher Wikne, C. Defoix, E. I. Rosenberg, A. Campion, S. Volponi, B. Dalmagne, F. Fulda-Quenzer, H. P. Borner, Stefan Schael, A. Lipniacka, Paul Baillon, Alexander Lincoln Read, M. Szeptycka, Tiziano Camporesi, A.J. Camacho Rozas, Abdenour Lounis, M.-H. Gros, Laurent Chevalier, M. Fernandez Alonso, D. Radojicic, V. Obraztsov, Jan Ridky, P. Folegati, Z. Hajduk, K. Kurvinen, Maciej Górski, W. Ruckstuhl, Borge Svane Nielsen, J. J. Lozano, Guido Barbiellini, R. Zukanovich Funchal, B. Franek, H. Wahlen, Ariel Goobar, E. Graziani, P. S. Iversen, F. Fontanelli, Maria Roberta Monge, A. Zalewska, Krzysztof Doroba, N. G. Redaelli, R. Moeller, A. Hakansson, Chiara Meroni, J. H. Koehne, Marco Bozzo, T. Hofmokl, Marek Szczekowski, J. M. Brunet, H. Foeth, Roberto Cirio, I. Roncagliolo, L. K. Resvanis, J. E. Hooper, J. Guy, P. Lutz, W. Krupinski, W. T. Meyer, P. V. Chliapnikov, Tord Ekelof, H. Staeck, D. Benedic, P. Abreu, P. Borgeaud, J. P. Gerber, Tim Adye, E. Rosso, H. Klein, P. Beltran, Peter Kluit, F. Naraghi, P. Frenkiel, K. H. Becks, E. Vallazza, Milos Lokajicek, J. Cuevas Maestro, A. Chan, B. Ueberschaer, Massimo Caccia, H. J. Hilke, D. J. Holthuizen, F. Waldner, S. Haider, Antonio Ferrer, Tuure Tuuva, F. Simonetto, F. Kapusta, K. W. Glitza, Clara Troncon, G. Leder, B. Åsman, W.S.C. Williams, J.-E. Augustin, F. Ledroit, E.N. Gazos, M. Schaeffer, B. Loerstad, Eilam Gross, B. Nijjhar, E. Menichetti, Stefano Ragazzi, K. Furnival, C. Walck, A. De Angelis, P. Collins, D. Delikaris, Vladimir Nikolaenko, C. Caso, J. Drees, Fernand Grard, A. Passeri, D. Crennell, F. Mandl, T. Todorov, H. Burmeister, N. van Eijndhoven, J. Werner, L. Tortora, F. J. Harris, C. De La Vaissiere, C. J. Beeston, Daniel Bloch, F. Cao, Ahmimed Ouraou, Wolfgang Adam, M. L. Turluer, B. W. Heck, M. Mazzucato, P. Szymanski, Robert S. Brown, V.M. Golovatyuk, Carlos Lacasta, K. D. Brand, N. I. Zimin, Krzysztof A. Rybicki, H. B. Crawley, D. Isenhower, A. Pinsent, D. Wormald, K. Woschnagg, A. De Min, Joao Varela, V. Falaleev, M. Dracos, J. J. Gomez Y Cadenas, V. Chorowicz, D. Reid, Yu. Belokopytov, S. Squarcia, Matteo Pegoraro, E. C. Katsoufis, G. Gopal, E. G. Anassontzis, R. Holmes, H. Saarikko, M. Voutilainen, G. Grosdidier, W. Dulinski, K. A. J. Forbes, S. D. Hodgson, S. Ueberschaer, G. Galeazzi, J. P. Engel, P. Bambade, K. Moenig, M. V. Castillo Gimenez, E. J. Sanchez, M. Crozon, T. Buran, Gianni Zumerle, P. Roudeau, Alessandra Romero, J. Kesteman, A. Maltezos, G. Damgaard, F. Verbeure, C. Bricman, M. A E Schyns, Martino Margoni, P. F. Honore, E. Fokitis, G. D. Alekseev, Olga Botner, M. Michelotto, V. Gracco, Pavlos Ioannou, Krzysztof Korcyl, A. N. Sissakian, R. Llosa, Claudia J. Stubenrauch, Carmen García, B. Jean-Marie, Mario Sannino, Eleuterio Spiriti, P. Poropat, Andromachi Tsirou, M. A. Houlden, M. Mc Cubbin, K. Hultqvist, Georgios Stavropoulos, P. David, Andre Augustinus, W. K. Van Doninck, F. Richard, W.-D. Apel, C. Matteuzzi, M. Hahn, D. Vilanova, S. Almehed, F. Hahn, S. Marti, U. Kruener-Marquis, Paolo Ronchese, N. J. Kjaer, Paula Eerola, Lucio Cerrito, M. A. Winter, G. E. Kalmus, H. Palka, G. Skjevling, J. W. Lamsa, F. Barao, T. Henkes, B. De Lotto, G. Crosetti, Evgueni Vlasov, E. Higon, R. Seufert, H. Herr, F. Scuri, A. M. Wetherell, L. G. Tkatchev, Jmv Garcia, L. Lanceri, A. Firestone, M. Vollmer, U. Rossi, Paolo Giacomelli, R. Sekulin, S. Delorme, M. Zito, J. J. Hernandez, T. Moa, G. Maehlum, B. Grossetete, Allan Hallgren, Giovanni Valenti, Antonio Baroncelli, Guenakh Mitselmakher, Fares Djama, José Salt, L. Vibert, M. Jonker, William Trischuk, A. Markou, Cristian Stanescu, P. Branchini, H. Schneider, R. Lauhakangas, Tiziano Rovelli, Mikael Berggren, G. Kantardjian, M. Sessa, M. Los, V. Lepeltier, M. Donszelmann, H. Forsbach, C. Ronnqvist, Paolo Checchia, G. Zhang, A. P. Ostankov, Ph. Gavillet, R. Gokieli, Dietrich Liko, P. Privitera, V. Kostukhin, R. Zitoun, M. Turala, Luc Pape, P. Herquet, R. Contri, Piotr Zalewski, U. Nau-Korzen, Manolis Dris, E. Lillethun, V.A. Uvarov, Daniel Treille, J. N. Jackson, P. Kokkinias, J. Lindgren, Nikita Smirnov, F. Carena, Pierre Billoir, M. Pernicka, I. Hietanen, Jose M. Benlloch, A. Grant, Vaclav Vrba, Hans Dijkstra, G. Lenzen, J. E. Campagne, M. Koratzinos, P. Negri, J.H. Bibby, Göran Jarlskog, A. Letessier-Selvon, J. Dolbeau, P.S.L. Booth, P. N. Ratoff, A. Lopez-Fernandez, J. Marco, M. P. Clara, Maria Elena Pol, S. Katsanevas, D. Y. Bardin, T. A. Filippas, M. Regler, P. Yepes, H. Mueller, C. O. Higgins, B. Bouquet, R. Orava, A. Klovning, Laboratoire d'Annecy de Physique des Particules (LAPP), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), Institut de Physique Nucléaire de Lyon (IPNL), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), CMS, Institut de Physique des 2 Infinis de Lyon (IP2I Lyon), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS), L3, Acciarri, M., Achard, P., Adriani, O., Aguilar Benitez, M., Alcaraz, J., Alemanni, G., Allaby, J., Aloisio, Alberto, Alviggi, Mariagrazia, Ambrosi, G., Anderhub, H., Andreev, V. P., Angelescu, T., Anselmo, F., Arefiev, A., Azemoon, T., Aziz, T., Bagnaia, P., Bajo, A., Baksay, L., Balandras, A., Banerjee, S., Barczyk, A., Barillere, R., Barone, L., Bartalini, P., Basile, M., Battiston, R., Bay, A., Becattini, F., Becker, U., Behner, F., Bellucci, L., Berbeco, R., Berdugo, J., Berges, P., Bertucci, B., Betev, B. L., Bhattacharya, S., Biasini, M., Biland, A., Blaising, J. J., Blyth, S. C., Bobbink, G. J., Bohm, A., Boldizsar, L., Borgia, B., Bourilkov, D., Bourquin, M., Braccini, S., Branson, J. G., V, B., Brochu, F., Buffini, A., Buijs, A., Burger, J. D., Burger, W. J., Cai, X. D., Campanelli, M., Capell, M., Romeo, G. C., Carlino, G., Cartacci, A. M., Casaus, J., Castellini, G., Cavallari, F., Cavallo, N., Cecchi, C., Cerrada, M., Cesaroni, F., Chamizo, M., Chang, Y. H., Chaturvedi, U. K., Chemarin, M., Chen, A., Chen, G., Chen, G. M., Chen, H. F., Chen, H. S., Chiefari, Giovanni, Cifarelli, L., Cindolo, F., Civinini, C., I, C., Clare, R., Coignet, G., Colijn, A. P., Colino, N., Costantini, S., Cotorobai, F., Cozzoni, B., B. d., La, Csilling, A., Cucciarelli, S., Dai, T. S., Van, J. A., D'Alessandro, R., Asmundis, R. d., Deglon, P., Degre, A., Deiters, K., DELLA VOLPE, Domenico, Denes, P., Denotaristefani, F., Salvo, A. D., Diemoz, M., Dierendonck, D. v., Lodovico, F. D., Dionisi, C., Dittmar, M., Dominguez, A., Doria, A., Dova, M. T., Duchesneau, D., Dufournaud, D., Duinker, P., I, D., Mamouni, H. E., Engler, A., Eppling, F. J., Erne, F. C., Extermann, P., Fabre, M., Faccini, R., Falagan, M. A., Falciano, S., Favara, A., Fay, J., Fedin, O., Felcini, M., Ferguson, T., Ferroni, F., Fesefeldt, H., Fiandrini, E., Field, J. H., Filthaut, F., Fisher, P. H., I, F., Forconi, G., Fredj, L., Freudenreich, K., Furetta, C., Galaktionov, Y., Ganguli, S. N., Garcia Abia, P., Gataullin, M., Gau, S. S., Gentile, S., Gheordanescu, N., Giagu, S., Gong, Z. F., Grenier, G., Grimm, O., Gruenewald, M. W., Guida, M., Gulik, R. v., Gupta, V. K., Gurtu, A., Gutay, L. J., Haas, D., Hasan, A., Hatzifotiadou, D., Hebbeker, T., Herve, A., Hidas, P., Hirschfelder, J., Hofer, H., Holzner, G., Hoorani, H., Sr, H., Hu, Y., I, I., Jin, B. N., Jones, L. W., Jong, P. d., I, J., Khan, R. A., Kaur, M., Kienzle Focacci, M. N., Kim, D., Kim, J. K., Kirkby, J., Kiss, D., Kittel, W., Klimentov, A., Konig, A. C., Kopp, A., V, K., Kraber, M., Kraemer, R. W., Krenz, W., Kruger, A., Kunin, A., P. L., De, I, L., Landi, G., Lassila Perini, K., Lebeau, M., Lebedev, A., Lebrun, P., Lecomte, P., Lecoq, P., Coultre, P. L., Lee, H. J., J. M., Le, Leiste, R., Leonardi, E., Levtchenko, P., Li, C., Lokhoded, S., Lin, C. H., Lin, W. T., Linde, F. L., Lista, L., Liu, Z. A., Lohmann, W., Longo, E., Y. S., Lu, Lubelsmeyer, K., Luci, C., Luckey, D., Lugnier, L., Luminari, L., Lustermann, W., W. G., Ma, Maity, M., Malgeri, L., Malinin, A., Mana, C., Mangeol, D., Mans, J., Marchesini, P., Marian, G., Martin, J. P., Marzano, F., G. G. G., Mazumdar, K., Mcneil, R. R., Mele, S., Merola, Leonardo, Meschini, M., Metzger, W. J., Der, M. v., Mihul, A., Milcent, H., Mirabelli, G., Mnich, J., Mohanty, G. B., Molnar, P., Monteleoni, B., Moore, R., Moulik, T., Muanza, G. S., Muheim, F., A. J. M., Musy, M., Napolitano, Marco, Nessi Tedaldi, F., Newman, H., Niessen, T., Nisati, A., Nowak, H., Organtini, G., Oulianov, A., Palomares, C., Pandoulas, D., Paoletti, S., Paolucci, P., Paramatti, R., Park, H. K., Park, I. H., Pascale, G., Passaleva, G., Patricelli, Sergio, Paul, T., Pauluzzi, M., Paus, C., Pauss, F., Pedace, M., Pensotti, S., Perret Gallix, D., Petersen, B., Piccolo, D., Pierella, F., Pieri, M., Piroue, P. A., Pistolesi, E., V, P., Pohl, M., Postema, H., Pothier, J., Produit, N., Prokofiev, D. O., Prokofiev, D., Quartieri, J., Rahal Callot, G., Rahaman, M. A., Raics, P., Raja, N., Ramelli, R., Rancoita, P. G., Raspereza, A., Raven, G., Razis, P., Ren, D., Rescigno, M., Reucroft, S., Rhee, T. v., Riemann, S., Riles, K., Robohm, A., Rodin, J., Roe, B. P., Romero, L., Rosca, A., Rosier Lees, S., Rubio, J. A., Ruschmeier, D., Rykaczewski, H., Saremi, S., Sarkar, S., Salicio, J., Sanchez, E., Sanders, M. P., Sarakinos, M. E., Schafer, C., V, S., Schmidt Kaerst, S., Schmitz, D., Schopper, H., Schotanus, D. J., Schwering, G., Sciacca, Crisostomo, Sciarrino, D., Seganti, A., Servoli, L., Shevchenko, S., Shivarov, N., Shumilov, E., Shvorob, A., Siedenburg, T., Son, D., Smith, B., Spillantini, P., Steuer, M., Stickland, D. P., Stone, A., Stoyanov, B., Straessner, A., Sudhakar, K., Sultanov, G., Sun, L. Z., Suter, H., Swain, J. D., Szillasi, Z., Sztaricskai, T., Tang, X. W., Tauscher, L., Taylor, L., Tellili, B., Timmermans, C., S. C. C., Ting, S. M., Tonwar, S. C., Toth, J., Tully, C., Tung, K. L., Uchida, Y., Ulbricht, J., Valente, E., Vesztergombi, G., I, V., Vicinanza, D., Viertel, G., Villa, S., Vivargent, M., Vlachos, S., Vogel, H., Vogt, H., Vorobyov, A. A., Vorvolakos, A., Wadhwa, M., Wallraff, W., Wang, M., Wang, X. L., Wang, Z. M., Weber, A., Weber, M., Wienemann, P., Wilkens, H., S. X., Wu, Wynhoff, S., Xia, L., Z. Z., Xu, Yamamoto, J., Yang, B. Z., Yang, C. G., Yang, H. J., Yang, M., J. B., Ye, Yeh, S. C., Zalite, A., Zalite, Y., Zhang, Z. P., Zhu, G. Y., Zhu, R. Y., Zichichi, A., Ziegler, F., Zilizi, G., Zoller, M., L3 (IHEF, IoP, FNWI), LEP (IHEF, IoP, FNWI), Achard, Pablo, Ambrosi, Giovanni, Bourquin, Maurice, Braccini, Saverio, Chamizo Llatas, Maria, Deglon, Patrick, Extermann, Pierre, Field, John, Kienzle, Maria-Novella, Pohl, Martin, Sciarrino, Deborah, Aguilarbenitez, M., Ahlen, S., Alpat, B., Alverson, G., Antreasyan, D., Ball, R. C., Banicz, K., Baschirotto, A., Bilei, G. M., Bock, R., Boucham, A., Boutigny, D., Brigljevic, V., Brock, I. C., Busenitz, J., Buytenhuijs, A., Caria, M., Chan, A., Cheng, H. S., Chen, M., Chien, C. Y., Choi, M. T., Clare, I., Cohn, H. O., Cotorbai, F., Delacruz, B., Dalessandro, R., Deasmundis, R., Deboeck, H., Dibitonto, D., Vandierendonck, D., Dilodovico, F., Dorne, I., Drago, E., Duran, I., Dutta, S., Easo, S., Efremenko, Y., Elmamouni, H., Ernenwein, J. P., Fenyi, B., Fernandez, D., Garciaabia, P., Gerald, J., Goldfarb, S., Goldstein, J., Gougas, A., Gratta, G., Hangarter, K., Hartmann, B., Vanhoek, W. C., Hou, S. R., Hu, G., Innocente, V., Janssen, H., Dejong, P., Josamutuberria, I., Kasser, A., Kamyshkov, Y., Kapinos, P., Kapustinsky, J. S., Karyotakis, Y., Kienzlefocacci, M. N., Kim, S. C., Kim, Y. G., Kinnison, W. W., Kirkby, A., Kirkby, D., Korolko, I., Koutsenko, V., Kuijten, H., Deguevara, P. L., Lapoint, C., Lassilaperini, K., Laurikainen, P., Lecoultre, P., Lee, J. S., Lee, K. Y., Leggett, C., Legoff, J. M., Lieb, E., Lu, W., Lustemann, W., Majumder, G., Mangla, S., Marin, A., Mcnally, D., Vondermey, M., Mi, Y., A. J. W., Morganti, S., Mount, R., Muller, S., Nagy, E., Nahn, S., Nessitedaldi, F., Nippe, A., Ostonen, R., Peach, D., Pei, Y. J., Perretgallix, D., Petrak, S., Pevsner, A., Pinto, J. C., Plyaskin, V., Pojidaev, V., Rahalcallot, G., Rattaggi, M., Read, K., Vanrhee, T., Riemers, B. C., Rind, O., Ro, S., Rodriguez, F. J., Rohner, J. A., Santocchia, A., Sassowsky, M., Sauvage, G., Schegelsky, V., Schmidtkaerst, S., Schmitz, P., Schneegans, M., Sens, J. C., Shoutko, V., Shukla, J., Sopczak, A., Soulimov, V., Stone, H., Strauch, K., Susinno, G. F., Uwer, U., Vandewalle, R. T., Vetlitsky, I., Volkert, R., Vorobiev, I., Wang, J. C., Wittgenstein, F., Xu, J., Yao, X. Y., You, J. M., Zemp, P., Zeng, Y., Zhang, Z., Zhou, B., and Zhou, Y.

Subjects
COLLISIONS, Nuclear and High Energy Physics, Particle physics, LUND MONTE-CARLO, PAIR PRODUCTION, Electron–positron annihilation, FOS: Physical sciences, Elementary particle, ddc:500.2, 01 natural sciences, 7. Clean energy, Resonance (particle physics), JET FRAGMENTATION, DECAYS, High Energy Physics - Experiment, Nuclear physics, Particle decay, High Energy Physics - Experiment (hep-ex), 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], SILICON MICROVERTEX DETECTOR, PRECISE MEASUREMENT, Limit (mathematics), QCD ANALYSIS, 010306 general physics, L3 EXPERIMENT, Coupling constant, Physics, Muon, Annihilation, TEST BEAM, E+E-PHYSICS, 010308 nuclear & particles physics, ALPHA(S), High Energy Physics::Phenomenology, Detector, Pair production, SPECTRAL FUNCTIONS, ComputingMethodologies_DOCUMENTANDTEXTPROCESSING, High Energy Physics::Experiment, Particle Physics - Experiment, Lepton
Abstract

The tau lepton lifetime is measured with the L3 detector at LEP using the complete data taken at centre-of-mass energies around the Z pole resulting in tau_tau = 293.2 +/- 2.0 (stat) +/- 1.5 (syst) fs. The comparison of this result with the muon lifetime supports lepton universality of the weak charged current at the level of six per mille. Assuming lepton universality, the value of the strong coupling constant, alpha_s is found to be alpha_s(m_tau^2) = 0.319 +/- 0.015(exp.) +/- 0.014 (theory). The tau lepton lifetime is measured with the L3 detector at LEP using the complete data taken at centre-of-mass energies around the Z pole resulting in τ τ =293.2 ± 2.0 (stat) ± 1.5 (syst) fs . The comparison of this result with the muon lifetime supports lepton universality of the weak charged current at the level of six per mille. Assuming lepton universality, the value of the strong coupling constant, α s is found to be α s ( m τ 2 ) = 0.319 ± 0.015 (exp) ± 0.014 (theory). The tau lepton lifetime is measured with the L3 detector at LEP using the complete data taken at centre-of-mass energies around the Z pole resulting in tau_tau = 293.2 +/- 2.0 (stat) +/- 1.5 (syst) fs. The comparison of this result with the muon lifetime supports lepton universality of the weak charged current at the level of six per mille. Assuming lepton universality, the value of the strong coupling constant, alpha_s is found to be alpha_s(m_tau^2) = 0.319 +/- 0.015(exp.) +/- 0.014 (theory).

Published
2015

17. Measurement of the electron structure function F2e at LEP energies

Author

S. Katsanevas, Jalal Abdallah, T. da Silva, R. Orava, G. Eigen, B. Bouquet, P. Bambade, P.S.L. Booth, F. Carena, M. Bonesini, V. Perepelitsa, Z. Krumstein, S. Paiano, A. Ballestrero, K. Muenich, M. Battaglia, T. Tabarelli, A. N. Sisakian, M. Feindt, Louis Lyons, P. Jonsson, Valeriy Pozdniakov, Patrick Jarry, E. K. Johansson, Paolo Ronchese, A. Petrolini, Marco Costa, A. Tonazzo, N. J. Kjaer, A. De Min, U. Flagmeyer, N. De Maria, Sofia Andringa, E. Brodet, T. Myklebust, M. Rivero, A. Sadovsky, Jesus Marco, B. P. Kersevan, L. Jungermann, R. Contri, Stanislav Nemecek, R. Mc Nulty, Dietrich Liko, M. Tobin, J. H. Wickens, B. Muryn, M. Berggren, Nuno Filipe Castro, N. Pukhaeva, Nicola Amapane, V. Vrba, Goeran Jarlskog, M. Szeptycka, D. Fassouliotis, K. Doroba, J. Van Eldik, A. Pullia, S-O. Holmgren, G. Polok, Marco Paganoni, A. Augustinus, Demetrios Loukas, M. Pimenta, M. Houlden, B. De Lotto, K. Moenig, Martijn Mulders, P. Tyapkin, F. Ledroit, Jacques Lemonne, M. Chapkin, Daniel Treille, Paolo Morettini, P. Bruckman, Agnieszka Oblakowska-Mucha, E. Anashkin, C. Joram, Alberto Benvenuti, Fabrizio Ferro, F. Hauler, C. Parkes, E. Piotto, O. Yushchenko, Diego Rodriguez, F. Pierre, R. Sekulin, L. G. Tkatchev, Martino Margoni, E. Fokitis, J. N. Jackson, Piotr Zalewski, U. Mueller, A. Malek, Maarten Boonekamp, L. De Paula, A. Markou, Chiara Meroni, G. Grosdidier, Ugo Amaldi, Vincent Hedberg, W. A. Mitaroff, W. De Boer, P. Roudeau, Luis Peralta, F. Kapusta, M. Stanitzki, A. J. Washbrook, G. Tristram, A. G. Olshevski, G. Della Ricca, Ernesto Migliore, A. Oyanguren, B. Tome, P. Rebecchi, Th. D. Papadopoulou, D. Vilanova, Marcin Kucharczyk, Chiara Mariotti, L. Pieri, R. A. Brenner, Guillelmo Gomez-Ceballos, Roberto Chierici, J-C. Marin, G. Cosme, R. Gokieli, Krzysztof Nawrocki, C. Martinez-Rivero, Alessandra Romero, G. Kernel, L. Vitale, D. Radojicic, S. Haug, B. Åsman, V.A. Uvarov, Valerio Verzi, José Salt, W. D. Apel, Mattias Ellert, M. Begalli, C. Kourkoumelis, J. Drees, Spyros Tzamarias, P. B. Renton, Nathalie Besson, Georgios Fanourakis, Francesca Romana Cavallo, P. Antilogus, J. Rehn, Marek Szczekowski, A. Zalewska, Rafael Marco, T. Allmendinger, A. Baroncelli, Jan Ridky, T. J. V. Bowcock, J. H. Lopes, V. Canale, D. Wicke, Luiz Mundim, Evangelos Gazis, P. Van Dam, W. Slominski, Jorgen D'Hondt, K. Osterberg, Ph. Charpentier, P. Abreu, U. Mjoernmark, M. Trochimczuk, M. Espirito Santo, W. Venus, C. De Clercq, P. Goncalves, P. Lutz, G. Leder, W. J. Murray, Keith Hamilton, M. Witek, W. Liebig, Tord Ekelof, Y. Arnoud, D. Zavrtanik, A. Onofre, Daniel Jeans, V. Obraztsov, B. Stugu, A. Behrmann, J. M. Lopez, P. Verdier, P. P. Allport, M. Nikolenko, S. Ask, M. Gandelman, F. Tegenfeldt, Tiziano Rovelli, Michal Bluj, G. Borisov, M. Hennecke, T. Spassov, U. Kerzel, Tiziano Camporesi, I. A. Tyapkin, Juan Fuster, Petr Travnicek, L. Leinonen, K. Cieslik, Jose R. Fernandez, Sandra Amato, O. Kouznetsov, K. Belous, B. Marechal, E. C. Katsoufis, Javier Cuevas, A. Stocchi, Paul Baillon, Francesco Navarria, Pablo Tortosa, Barry King, V. Lepeltier, M. Siebel, D. Ryabtchikov, B. Buschbeck, M. Moch, Marc Besancon, Rosy Nicolaidou, J. Guy, Paolo Checchia, G. Vegni, P. Kluit, Marta Calvi, Marc Winter, Fabio Cossutti, Andre Sopczak, Nikolaos P. Mastroyiannopoulos, Petar Adzic, A. Zintchenko, L. Salmi, S. Maltezos, Jiri Masik, Ph. Gavillet, T. Moa, J. Montenegro, Igor Boyko, C. Troncon, J. Szwed, N.I. Zimin, R. Reinhardt, R. Monge, M. Zupan, Filipe Veloso, K. Grzelak, Luc Pape, T. Lesiak, J. MacNaughton, C. Weiser, C. Haag, N. Van Remortel, J. Timmermans, Tomasz Szumlak, M. Bracko, S. U. Chung, Oliver Passon, R. Sosnowski, Aurore Savoy-Navarro, Allan Hallgren, Giovanni Valenti, R. Alemany-Fernandez, J. E. Augustin, U. Schwickerath, V. Zhuravlov, J. Chudoba, A. Lipniacka, K. H. Becks, D. Moraes, Antonio Ferrer, P. V. Chliapnikov, A. Di Simone, G. Myatt, H. Palka, J. W. Lamsa, J. Hoffman, L. Di Ciaccio, Andrey Sokolov, P. Buschmann, A. Andreazza, D. Crennell, F. Mandl, M. Blom, P. Kokkinias, Nuno Anjos, Guy Wilkinson, P. J. Holt, E. Ben-Haim, N. Benekos, T. Albrecht, J. Strauss, S. Todorovova, Francisco Matorras, Ulrich Parzefall, T. Podobnik, Gareth J. Barker, F. Mazzucato, K. Hamacher, W. Da Silva, F. Richard, C. Matteuzzi, I. van Vulpen, A. Passeri, M. Nassiakou, D. Bertrand, G. Smadja, V. Poireau, M. Mazzucato, H. Wahlen, Christian Sander, Rupert Leitner, A. Perrotta, M. Baubillier, V. Ruhlmann-Kleider, H. Foeth, C. Berat, A. De Angelis, P. Collins, Daniel Bloch, Salvador Carrillo Moreno, Ahmimed Ouraou, F. Parodi, B. Golob, Markus Elsing, D. Y. Bardin, Olga Botner, Oxana Smirnova, Wolfgang Adam, Carmen García, J. Piedra, M. L. Turluer, D. Reid, J. P. Palacios, F. Fulda-Quenzer, E. Graziani, J. M. Brunet, R. Barbier, and Maria Elena Pol

Subjects
Physics, Scattering cross-section, Nuclear and High Energy Physics, Particle physics, Photon, 010308 nuclear & particles physics, Hadron, Structure function, Virtual particle, Electron, 01 natural sciences, Large target, Photon structure function, Nuclear physics, 0103 physical sciences, High Energy Physics::Experiment, 010306 general physics
Abstract

The hadronic part of the electron structure function F-2(e) has been measured for the first time, using e(+)e(-) data collected by the DELPHI experiment at LEP, at centre-of-mass energies of root s = 91.2-209.5 GeV. The data analysis is simpler than that of the measurement of the photon structure function. The electron structure function F-2(e) data are compared to predictions of phenomenological models based on the photon structure function. It is shown that the contribution of large target photon virtualities is significant. The data presented can serve as a cross-check of the photon structure function F-2(gamma) analyses and help in refining existing parameterisations. (C) 2014 The Authors. Published by Elsevier B.V.

Published
2014

18. Study of leading hadrons in gluon and quark fragmentation

Author

J. ABDALLAH, P. ABREU, W. ADAM, P. ADZIC, T. ALBRECHT, T. ALDERWEIRELD, R. ALEMANY FERNANDEZ, T. ALLMENDINGER, P. P. ALLPORT, U. AMALDI, N. AMAPANE, S. AMATO, E. ANASHKIN, A. ANDREAZZA, S. ANDRINGA, N. ANJOS, P. ANTILOGUS, W. D. APEL, Y. ARNOUD, S. ASK, B. ASMAN, J. E. AUGUSTIN, A. AUGUSTINUS, P. BAILLON, A. BALLESTRERO, P. BAMBADE, R. BARBIER, D. BARDIN, G. BARKER, A. BARONCELLI, M. BATTAGLIA, M. BAUBILLIER, K. H. BECKS, M. BEGALLI, A. BEHRMANN, E. BEN HAIM, N. BENEKOS, A. BENVENUTI, C. BERAT, M. BERGGREN, L. BERNTZON, D. BERTRAND, M. BESANCON, N. BESSON, D. BLOCH, M. BLOM, M. BLUJ, M. BONESINI, M. BOONEKAMP, P. S. L. BOOTH, G. BORISOV, O. BOTNER, B. BOUQUET, T. J. V. BOWCOCK, I. BOYKO, M. BRACKO, R. BRENNER, E. BRODET, P. BRUCKMAN, J. M. BRUNET, L. BUGGE, P. BUSCHMANN, M. CALVI, T. CAMPORESI, V. CANALE, F. CARENA, N. CASTRO, F. CAVALLO, M. CHAPKIN, P. CHARPENTIER, P. CHECCHIA, R. CHIERICI, P. SHLYAPNIKOV, J. CHUDOBA, S. U. CHUNG, K. CIESLIK, P. COLLINS, R. CONTRI, G. COSME, F. COSSUTTI, M. J. COSTA, B. CRAWLEY, D. CRENNELL, J. CUEVAS, J. D'HONDT, J. DALMAU, T. DA SILVA, W. DA SILVA, G. DELLA RICCA, A. DE ANGELIS, W. DE BOER, C. DE CLERCQ, B. DE LOTTO, N. DEMARIA, A. DE MIN, L. DE PAULA, L. DI CIACCIO, A. DI SIMONE, K. DOROBA, J. DREES, M. DRIS, G. EIGEN, T. EKELOF, M. ELLERT, M. ELSING, M. C. ESPIRITO SANTO, G. FANOURAKIS, D. FASSOULIOTIS, M. FEINDT, J. FERNANDEZ, A. FERRER, F. FERRO, U. FLAGMEYER, H. FOETH, E. FOKITIS, F. FULDA QUENZER, J. FUSTER, M. GANDELMAN, C. GARCIA, P. GAVILLET, E. GAZIS, R. GOKIELI, B. GOLOB, G. GOMEZ CEBALLOS, P. GONCALVES, E. GRAZIANI, G. GROSDIDIER, K. GRZELAK, J. GUY, C. HAAG, A. HALLGREN, K. HAMACHER, K. HAMILTON, S. HAUG, F. HAULER, V. HEDBERG, M. HENNECKE, H. HERR, J. HOFFMAN, S. O. HOLMGREN, P. J. HOLT, M. A. HOULDEN, K. HULTQVIST, J. N. JACKSON, G. JARLSKOG, P. JARRY, D. JEANS, E. K. JOHANSSON, P. D. JOHANSSON, P. JONSSON, C. JORAM, L. JUNGERMANN, F. KAPUSTA, S. KATSANEVAS, E. KATSOUFIS, G. KERNEL, B. P. KERSEVAN, U. KERZEL, A. KIISKINEN, B. T. KING, N. J. KJAER, P. KLUIT, P. KOKKINIAS, C. KOURKOUMELIS, O. KUZNETSOV, Z. KRUMSHTEIN, M. KUCHARCZYK, J. LAMSA, G. LEDER, F. LEDROIT, L. LEINONEN, R. LEITNER, J. LEMONNE, V. LEPELTIER, T. LESIAK, W. LIEBIG, D. LIKO, A. LIPNIACKA, J. H. LOPES, J. M. LOPEZ, D. LOUKAS, P. LUTZ, L. LYONS, J. MACNAUGHTON, A. MALEK, S. MALTEZOS, F. MANDL, J. MARCO, R. MARCO, B. MARECHAL, M. MARGONI, J. C. MARIN, C. MARIOTTI, A. MARKOU, C. MARTINEZ RIVERO, J. MASIK, N. MASTROYIANNOPOULOS, F. MATORRAS, C. MATTEUZZI, F. MAZZUCATO, M. MAZZUCATO, R. MCNULTY, C. MERONI, W. T. MEYER, E. MIGLIORE, W. MITAROFF, U. MJORNMARK, T. MOA, M. MOCH, K. MONIG, R. MONGE, J. MONTENEGRO, D. MORAES, S. MORENO, P. MORETTINI, U. MULLER, K. MUNICH, M. MULDERS, L. MUNDIM, W. MURRAY, B. MURYN, G. MYATT, T. MYKLEBUST, M. NASSIAKOU, K. NAWROCKI, R. NICOLAIDOU, M. NIKOLENKO, A. OBLAKOWSKA MUCHA, V. OBRAZTSOV, A. OLSHEVSKY, A. ONOFRE, R. ORAVA, K. OSTERBERG, A. OURAOU, A. OYANGUREN, M. PAGANONI, J. P. PALACIOS, H. PALKA, T. D. PAPADOPOULOU, L. PAPE, C. PARKES, F. PARODI, U. PARZEFALL, A. PASSERI, O. PASSON, L. PERALTA, V. PEREPELITSA, A. PETROLINI, J. PIEDRA, L. PIERI, F. PIERRE, M. PIMENTA, E. PIOTTO, T. PODOBNIK, V. POIREAU, M. E. POL, G. POLOK, P. POROPAT, V. POZDNYAKOV, N. PUKHAEVA, A. PULLIA, J. RAMES, L. RAMLER, A. READ, P. REBECCHI, J. REHN, D. REID, R. REINHARDT, P. RENTON, F. RICHARD, J. RIDKY, M. RIVERO, D. RODRIGUEZ, A. ROMERO, P. RONCHESE, E. ROSENBERG, P. ROUDEAU, V. RUHLMANN KLEIDER, D. RYABCHIKOV, A. SADOVSKY, L. SALMI, J. SALT, A. SAVOY NAVARRO, U. SCHWICKERATH, A. SEGAR, R. SEKULIN, M. SIEBEL, A. SISAKIAN, G. SMADJA, O. SMIRNOVA, A. SOKOLOV, A. SOPCZAK, R. SOSNOWSKI, T. SPASSOV, M. STANITZKI, A. STOCCHI, J. STRAUSS, B. STUGU, M. SZCZEKOWSKI, M. SZEPTYCKA, T. SZUMLAK, T. TABARELLI, A. C. TAFFARD, F. TEGENFELDT, J. TIMMERMANS, L. TKACHEV, M. TOBIN, S. TODOROVA, B. TOME, A. TONAZZO, P. TORTOSA, P. TRAVNICEK, D. TREILLE, G. TRISTRAM, M. TROCHIMCZUK, C. TRONCON, M. L. TURLUER, P. TYAPKIN, S. TZAMARIAS, V. UVAROV, G. VALENTI, P. VAN DAM, J. VAN ELDIK, A. VAN LYSEBETTEN, N. VAN REMORTEL, I. VAN VULPEN, G. VEGNI, F. VELOSO, W. VENUS, P. VERDIER, Y.U. L. VERTOGRADOVA, V. VERZI, D. VILANOVA, L. VITALE, V. VRBA, H. WAHLEN, A. J. WASHBROOK, C. WEISER, D. WICKE, J. WICKENS, G. WILKINSON, M. WINTER, M. WITEK, O. YUSHCHENKO, A. ZALEWSKA, P. ZALEWSKI, D. ZAVRTANIK, V. ZHURAVLOV, N. I. ZIMIN, A. ZINCHENKO, M. ZUPAN, NAVARRIA, FRANCESCO LUIGI, PAIANO, SIMONE, PERROTTA, ANDREA, ROVELLI, TIZIANO, Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Institut de Physique Nucléaire de Lyon (IPNL), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Département d'Astrophysique, de physique des Particules, de physique Nucléaire et de l'Instrumentation Associée (DAPNIA), Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Département Recherches Subatomiques (DRS-IPHC), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), DELPHI, J. ABDALLAH, P. ABREU, W. ADAM, P. ADZIC, T. ALBRECHT, T. ALDERWEIRELD, R. ALEMANY-FERNANDEZ, T. ALLMENDINGER, P.P. ALLPORT, U. AMALDI, N. AMAPANE, S. AMATO, E. ANASHKIN, A. ANDREAZZA, S. ANDRINGA, N. ANJOS, P. ANTILOGUS, W.D. APEL, Y. ARNOUD, S. ASK, B. ASMAN, J.E. AUGUSTIN, A. AUGUSTINUS, P. BAILLON, A. BALLESTRERO, P. BAMBADE, R. BARBIER, D. BARDIN, G. BARKER, A. BARONCELLI, M. BATTAGLIA, M. BAUBILLIER, K.H. BECKS, M. BEGALLI, A. BEHRMANN, E. BEN-HAIM, N. BENEKOS, A. BENVENUTI, C. BERAT, M. BERGGREN, L. BERNTZON, D. BERTRAND, M. BESANCON, N. BESSON, D. BLOCH, M. BLOM, M. BLUJ, M. BONESINI, M. BOONEKAMP, P.S.L. BOOTH, G. BORISOV, O. BOTNER, B. BOUQUET, T.J.V. BOWCOCK, I. BOYKO, M. BRACKO, R. BRENNER, E. BRODET, P. BRUCKMAN, J.M. BRUNET, L. BUGGE, P. BUSCHMANN, M. CALVI, T. CAMPORESI, V. CANALE, F. CARENA, N. CASTRO, F. CAVALLO, M. CHAPKIN, P. CHARPENTIER, P. CHECCHIA, R. CHIERICI, P. SHLYAPNIKOV, J. CHUDOBA, S.U. CHUNG, K. CIESLIK, P. COLLINS, R. CONTRI, G. COSME, F. COSSUTTI, M.J. COSTA, B. CRAWLEY, D. CRENNELL, J. CUEVAS, J. D'HONDT, J. DALMAU, T. DA SILVA, W. DA SILVA, G. DELLA RICCA, A. DE ANGELIS, W. DE BOER, C. DE CLERCQ, B. DE LOTTO, N. DEMARIA, A. DE MIN, L. DE PAULA, L. DI CIACCIO, A. DI SIMONE, K. DOROBA, J. DREES, M. DRIS, G. EIGEN, T. EKELOF, M. ELLERT, M. ELSING, M.C. ESPIRITO SANTO, G. FANOURAKIS, D. FASSOULIOTIS, M. FEINDT, J. FERNANDEZ, A. FERRER, F. FERRO, U. FLAGMEYER, H. FOETH, E. FOKITIS, F. FULDA-QUENZER, J. FUSTER, M. GANDELMAN, C. GARCIA, P. GAVILLET, E. GAZIS, R. GOKIELI, B. GOLOB, G. GOMEZ-CEBALLOS, P. GONCALVES, E. GRAZIANI, G. GROSDIDIER, K. GRZELAK, J. GUY, C. HAAG, A. HALLGREN, K. HAMACHER, K. HAMILTON, S. HAUG, F. HAULER, V. HEDBERG, M. HENNECKE, H. HERR, J. HOFFMAN, S.O. HOLMGREN, P.J. HOLT, M.A. HOULDEN, K. HULTQVIST, J.N. JACKSON, G. JARLSKOG, P. JARRY, D. JEANS, E.K. JOHANSSON, P.D. JOHANSSON, P. JONSSON, C. JORAM, L. JUNGERMANN, F. KAPUSTA, S. KATSANEVAS, E. KATSOUFIS, G. KERNEL, B.P. KERSEVAN, U. KERZEL, A. KIISKINEN, B.T. KING, N.J. KJAER, P. KLUIT, P. KOKKINIAS, C. KOURKOUMELIS, O. KUZNETSOV, Z. KRUMSHTEIN, M. KUCHARCZYK, J. LAMSA, G. LEDER, F. LEDROIT, L. LEINONEN, R. LEITNER, J. LEMONNE, V. LEPELTIER, T. LESIAK, W. LIEBIG, D. LIKO, A. LIPNIACKA, J.H. LOPES, J.M. LOPEZ, D. LOUKAS, P. LUTZ, L. LYONS, J. MACNAUGHTON, A. MALEK, S. MALTEZOS, F. MANDL, J. MARCO, R. MARCO, B. MARECHAL, M. MARGONI, J.C. MARIN, C. MARIOTTI, A. MARKOU, C. MARTINEZ-RIVERO, J. MASIK, N. MASTROYIANNOPOULOS, F. MATORRAS, C. MATTEUZZI, F. MAZZUCATO, M. MAZZUCATO, R. MCNULTY, C. MERONI, W.T. MEYER, E. MIGLIORE, W. MITAROFF, U. MJORNMARK, T. MOA, M. MOCH, K. MONIG, R. MONGE, J. MONTENEGRO, D. MORAES, S. MORENO, P. MORETTINI, U. MULLER, K. MUNICH, M. MULDERS, L. MUNDIM, W. MURRAY, B. MURYN, G. MYATT, T. MYKLEBUST, M. NASSIAKOU, F. NAVARRIA, K. NAWROCKI, R. NICOLAIDOU, M. NIKOLENKO, A. OBLAKOWSKA-MUCHA, V. OBRAZTSOV, A. OLSHEVSKY, A. ONOFRE, R. ORAVA, K. OSTERBERG, A. OURAOU, A. OYANGUREN, M. PAGANONI, S. PAIANO, J.P. PALACIOS, H. PALKA, T.D. PAPADOPOULOU, L. PAPE, C. PARKES, F. PARODI, U. PARZEFALL, A. PASSERI, O. PASSON, L. PERALTA, V. PEREPELITSA, A. PERROTTA, A. PETROLINI, J. PIEDRA, L. PIERI, F. PIERRE, M. PIMENTA, E. PIOTTO, T. PODOBNIK, V. POIREAU, M.E. POL, G. POLOK, P. POROPAT, V. POZDNYAKOV, N. PUKHAEVA, A. PULLIA, J. RAMES, L. RAMLER, A. READ, P. REBECCHI, J. REHN, D. REID, R. REINHARDT, P. RENTON, F. RICHARD, J. RIDKY, M. RIVERO, D. RODRIGUEZ, A. ROMERO, P. RONCHESE, E. ROSENBERG, P. ROUDEAU, T. ROVELLI, V. RUHLMANN-KLEIDER, D. RYABCHIKOV, A. SADOVSKY, L. SALMI, J. SALT, A. SAVOY-NAVARRO, U. SCHWICKERATH, A. SEGAR, R. SEKULIN, M. SIEBEL, A. SISAKIAN, G. SMADJA, O. SMIRNOVA, A. SOKOLOV, A. SOPCZAK, R. SOSNOWSKI, T. SPASSOV, M. STANITZKI, A. STOCCHI, J. STRAUSS, B. STUGU, M. SZCZEKOWSKI, M. SZEPTYCKA, T. SZUMLAK, T. TABARELLI, A.C. TAFFARD, F. TEGENFELDT, J. TIMMERMANS, L. TKACHEV, M. TOBIN, S. TODOROVA, B. TOME, A. TONAZZO, P. TORTOSA, P. TRAVNICEK, D. TREILLE, G. TRISTRAM, M. TROCHIMCZUK, C. TRONCON, M.L. TURLUER, P. TYAPKIN, S. TZAMARIAS, V. UVAROV, G. VALENTI, P. VAN DAM, J. VAN ELDIK, A. VAN LYSEBETTEN, N. VAN REMORTEL, I. VAN VULPEN, G. VEGNI, F. VELOSO, W. VENUS, P. VERDIER, YU.L. VERTOGRADOVA, V. VERZI, D. VILANOVA, L. VITALE, V. VRBA, H. WAHLEN, A.J. WASHBROOK, C. WEISER, D. WICKE, J. WICKENS, G. WILKINSON, M. WINTER, M. WITEK, O. YUSHCHENKO, A. ZALEWSKA, P. ZALEWSKI, D. ZAVRTANIK, V. ZHURAVLOV, N.I. ZIMIN, A. ZINCHENKO, M. ZUPAN, Cossutti, F., DELLA RICCA, Giuseppe, Vitale, Lorenzo, Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Student Lab and Education, (Astro)-Particles Physics, Faculty of Sciences, Abdallah, J, Abreu, P, Adam, W, Adzic, P, Albrecht, T, Alemany Fernandez, R, Allmendinger, T, Allport, P, Amaldi, U, Amapane, N, Amato, S, Anashkin, E, Andreazza, A, Andringa, S, Anjos, N, Antilogus, P, Apel, W, Arnoud, Y, Ask, S, Asman, B, Augustin, J, Augustinus, A, Baillon, P, Ballestrero, A, Bambade, P, Barbier, R, Bardin, D, Barker, G, Baroncelli, A, Battaglia, M, Baubillier, M, Becks, K, Begalli, M, Behrmann, A, Ben Haim, E, Benekos, N, Benvenuti, A, Berat, C, Berggren, M, Berntzon, L, Bertrand, D, Besancon, M, Besson, N, Bloch, D, Blom, M, Bluj, M, Bonesini, M, Boonekamp, M, Booth, P, Borisov, G, Botner, O, Bouquet, B, Bowcock, T, Boyko, I, Bracko, M, Brenner, R, Brodet, E, Bruckman, P, Brunet, J, Buschbeck, B, Buschmann, P, Calvi, M, Camporesi, T, Canale, V, Carena, F, Castro, N, Cavallo, F, Chapkin, M, Charpentier, P, Checchia, P, Chierici, R, Chliapnikov, P, Chudoba, J, Chung, S, Cieslik, K, Collins, P, Contri, R, Cosme, G, Cossutti, F, Costa, M, Crennell, D, Cuevas, J, D'Hondt, J, Dalmau, J, da Silva, T, Da Silva, W, Della Ricca, G, De Angelis, A, De Boer, W, De Clercq, C, De Lotto, B, De Maria, N, De Min, A, de Paula, L, Di Ciaccio, L, Di Simone, A, Doroba, K, Drees, J, Eigen, G, Ekelof, T, Ellert, M, Elsing, M, Espirito Santo, M, Fanourakis, G, Fassouliotis, D, Feindt, M, Fernandez, J, Ferrer, A, Ferro, F, Flagmeyer, U, Foeth, H, Fokitis, E, Fulda Quenzer, F, Fuster, J, Gandelman, M, Garcia, C, Gavillet, P, Gazis, E, Gokieli, R, Golob, B, Gomez Ceballos, G, Goncalves, P, Graziani, E, Grosdidier, G, Grzelak, K, Guy, J, Haag, C, Hallgren, A, Hamacher, K, Hamilton, K, Haug, S, Hauler, F, Hedberg, V, Hennecke, M, Herr, H, Hoffman, J, Holmgren, S, Holt, P, Houlden, M, Jackson, J, Jarlskog, G, Jarry, P, Jeans, D, Johansson, E, Johansson, P, Jonsson, P, Joram, C, Jungermann, L, Kapusta, F, Katsanevas, S, Katsoufis, E, Kernel, G, Kersevan, B, Kerzel, U, King, B, Kjaer, N, Kluit, P, Kokkinias, P, Kourkoumelis, C, Kouznetsov, O, Krumstein, Z, Kucharczyk, M, Lamsa, J, Leder, G, Ledroit, F, Leinonen, L, Leitner, R, Lemonne, J, Lepeltier, V, Lesiak, T, Liebig, W, Liko, D, Lipniacka, A, Lopes, J, Lopez, J, Loukas, D, Lutz, P, Lyons, L, Macnaughton, J, Malek, A, Maltezos, S, Mandl, F, Marco, J, Marco, R, Marechal, B, Margoni, M, Marin, J, Mariotti, C, Markou, A, Martinez Rivero, C, Masik, J, Mastroyiannopoulos, N, Matorras, F, Matteuzzi, C, Mazzucato, F, Mazzucato, M, Mc Nulty, R, Meroni, C, Migliore, E, Mitaroff, W, Mjoernmark, U, Moa, T, Moch, M, Moenig, K, Monge, R, Montenegro, J, Moraes, D, Moreno, S, Morettini, P, Mueller, U, Muenich, K, Mulders, M, Mundim, L, Murray, W, Muryn, B, Myatt, G, Myklebust, T, Nassiakou, M, Navarria, F, Nawrocki, K, Nicolaidou, R, Nikolenko, M, Oblakowska Mucha, A, Obraztsov, V, Olshevski, A, Onofre, A, Orava, R, Osterberg, K, Ouraou, A, Oyanguren, A, Paganoni, M, Paiano, S, Palacios, J, Palka, H, Papadopoulou, T, Pape, L, Parkes, C, Parodi, F, Parzefall, U, Passeri, A, Passon, O, Peralta, L, Perepelitsa, V, Perrotta, A, Petrolini, A, Piedra, J, Pieri, L, Pierre, F, Pimenta, M, Piotto, E, Podobnik, T, Poireau, V, Pol, M, Polok, G, Pozdniakov, V, Pukhaeva, N, Pullia, A, Rames, J, Read, A, Rebecchi, P, Rehn, J, Reid, D, Reinhardt, R, Renton, P, Richard, F, Ridky, J, Rivero, M, Rodriguez, D, Romero, A, Ronchese, P, Roudeau, P, Rovelli, T, Ruhlmann Kleider, V, Ryabtchikov, D, Sadovsky, A, Salmi, L, Salt, J, Sander, C, Savoy Navarro, A, Schwickerath, U, Sekulin, R, Siebel, M, Sisakian, A, Smadja, G, Smirnova, O, Sokolov, A, Sopczak, A, Sosnowski, R, Spassov, T, Stanitzki, M, Stocchi, A, Strauss, J, Stugu, B, Szczekowski, M, Szeptycka, M, Szumlak, T, TABARELLI DE FATIS, T, Taffard, A, Tegenfeldt, F, Timmermans, J, Tkatchev, L, Tobin, M, Todorovova, S, Tome, B, Tonazzo, A, Tortosa, P, Travnicek, P, Treille, D, Tristram, G, Trochimczuk, M, Troncon, C, Turluer, M, Tyapkin, I, Tyapkin, P, Tzamarias, S, Uvarov, V, Valenti, G, Van Dam, P, Van Eldik, J, van Remortel, N, Van Vulpen, I, Vegni, G, Veloso, F, Venus, W, Verdier, P, Verzi, V, Vilanova, D, Vitale, L, Vrba, V, Wahlen, H, Washbrook, A, Weiser, C, Wicke, D, Wickens, J, Wilkinson, G, Winter, M, Witek, M, Yushchenko, O, Zalewska, A, Zalewski, P, Zavrtanik, D, Zhuravlov, V, Zimin, N, Zintchenko, A, and Zupan, M

Subjects
Quark, Particle physics, Nuclear and High Energy Physics, Meson, High Energy Physics::Lattice, Hadron, MODELS, Nuclear Theory, Lund string model, FOS: Physical sciences, MASS, 01 natural sciences, SCALAR GLUEBALL, Z(0) DECAYS, DELPHI DETECTOR, QCD, JETS, RESONANCES, PHYSICS, MESONS, High Energy Physics - Experiment, Nuclear physics, High Energy Physics - Experiment (hep-ex), 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], Rapidity, Z0, 010306 general physics, Nuclear Experiment, LEADING HADRONS, DELPHI, Quantum chromodynamics, Physics, 010308 nuclear & particles physics, High Energy Physics::Phenomenology, LEP, LARGE ELECTRON POSITRON COLLIDER, Photon structure function, Gluon, PARTICLE PHYSICS, Physique des particules élémentaires, High Energy Physics::Experiment, Particle Physics - Experiment
Abstract

The study of quark jets in e+ e- reactions at LEP has demonstrated that the hadronisation process is reproduced well by the Lund string model. However, our understanding of gluon fragmentation is less complete. In this study enriched quark and gluon jet samples of different purities are selected in three-jet events from hadronic decays of the Z collected by the DELPHI experiment in the LEP runs during 1994 and 1995. The leading systems of the two kinds of jets are defined by requiring a rapidity gap and their sum of charges is studied. An excess of leading systems with total charge zero is found for gluon jets in all cases, when compared to Monte Carlo simulations with JETSET (with and without Bose-Einstein correlations included) and ARIADNE. The corresponding leading systems of quark jets do not exhibit such an excess. The influence of the gap size and of the gluon purity on the effect is studied and a concentration of the excess of neutral leading systems at low invariant masses (≲ 2 GeV / c2) is observed, indicating that gluon jets might have an additional hitherto undetected fragmentation mode via a two-gluon system. This could be an indication of a possible production of gluonic states as predicted by QCD. © 2006 Elsevier B.V. All rights reserved., 0, SCOPUS: ar.j, info:eu-repo/semantics/published

Published
2006

19. Spin alignment of ρ0 mesons produced in antineutrino and neutrino neon charged-current interactions

Author

P. O. Hulth, D. Bertrand, Amanda Cooper-Sarkar, V. Brisson, M. M. Mobayyen, D. R. O. Morrison, Mikael Berggren, M. Adeholz, H. Wachsmuth, P. Kasper, D. B. Miller, N. Schmitz, W. Venus, Jon-Paul R. Wells, C. Vallée, P. Petiau, W. Burkot, O. Erriquez, R. P. Middleton, E. F. Clayton, A. Vayaki, W. Wittek, J. P. Baton, P. J. Fitch, M.T. Fogli-Muciaccia, K. Varvell, M. Calicchio, Pierre Marage, Marc Neveu, G. T. Jones, T. Coghen, Jean Sacton, S. W. O'Neale, J. Guy, R. A. Sansum, E. Simopoulou, F. W. Bullock, P. P. Allport, H. Klein, and M. A. Parker

Subjects
Physics, Nuclear physics, Nuclear and High Energy Physics, Particle physics, Neon, Meson, Fragmentation (mass spectrometry), chemistry, Bubble chamber, chemistry.chemical_element, Neutrino, Charged current
Abstract

In a bubble chamber experiment with BEBC the spin alignment parameter η= 1 2 (2ϱ 00 − ϱ 11 − ϱ −1−1 ) is measured for ϱ0 mesons produced in deep inelastic charged-current antineutrino and neutrono interactions on neon. In the current fragmentation region η is found to be η v =0.48±0.27 ( stat. )±0.15 ( syst. ) for v Ne and ηv=0.12±0.20 (stat.)±0.10 (syst.) for vNe interactions

Published
2016

20. Measurement of inclusive π 0 production in hadronic Z 0 decays

Author

F. Simonetto, G. Leder, B. Åsman, V. Lefebure, D. Crennell, F. Mandl, G. Smadja, Patrick Jarry, G. Rinaudo, J. Salt, Z. Krumstein, L.N. Gerdyukov, T. Tabarelli, H. Palka, A. De Min, A. Trombini, I. Siccama, G. Sajot, P. Rebecchi, H. Rahmani, M. Blume, F. Barao, R. Mc Nulty, H. De Boeck, B. Jean-Marie, M. Tyndel, A. Deghorain, T. Buran, Markus Elsing, D. Fassouliotis, Ariella Cattai, F. Ledroit, J. Fuster, J.D. Richardson, Richard Jacobsson, O. Smirnova, A. N. Sisakian, A. Petrolini, A. Sadovsky, S. C. Blyth, G. Wilkinson, E. Higon, J. M. Lopez, Leif J. Jönsson, Borge Svane Nielsen, S. De Brabandere, B. De Lotto, G. Crosetti, Evgueni Vlasov, C. Joram, Andrei Nomerotski, J. Dolbeau, P. Bambade, C. Maocun, S. Bosworth, A. Lopez-Fernandez, R. Zuberi, Krzysztof Doroba, A. Passeri, F. Scuri, Chiara Meroni, P. Bruckman, G. W. Van Apeldoorn, L. Ventura, K. Yip, R. Lindner, J. W. Lamsa, Y. Lemoigne, Kathy Huet, Valeriy Pozdniakov, Olga Botner, M. Weierstall, Christine Kourkoumelis, E. Dahl-Jensen, T. Bolognese, K. Kurvinen, P.S.L. Booth, Per Jönsson, Norbert Neumeister, H. Herr, G. Transtromer, Chiara Mariotti, L. G. Tkatchev, Manfred Krammer, A. M. Wetherell, Charles Bricman, P. Kubinec, Peter Kluit, Clara Troncon, Carmen García, A. Seitz, J. P. Tavernet, M. Michelotto, D. Wicke, Javier Sánchez, L. Lanceri, G. Vegni, J. Van Eldik, Stéphane Plaszczynski, I. Lippi, T. S. Hill, H. Foeth, W. Bonivento, I. Stavitski, M. Schimmelpfennig, C. Zacharatou, P. Carrilho, J. J. Hernandez, J. Garcia, Kerem Cankocak, O. Podobrin, M.A. Lopez Aguera, S. Hahn, Francesca Romana Cavallo, M. Berggren, J. H. Wickens, B. Muryn, Marco Paganoni, Jose Luis Contreras, P. Delpierre, B. Ueberschaer, Paul Baillon, D. Zontar, Alexander Lincoln Read, A. Galloni, S. O. Holmgren, A. Klovning, Y. Arnoud, U. Mjoernmark, C. Bosio, P. B. Renton, E. I. Rosenberg, M. Szeptycka, Konstantinos Papageorgiou, H. T. Phillips, Vladimir Cindro, D. C. Fries, Louis Lyons, L. S. Vertogradov, M. Gibbs, R. Aleksan, W. Kucewicz, Tord Ekelof, Piotr Zalewski, B. Marechal, E. C. Katsoufis, A. De Angelis, S. Hoorelbeke, P. Herquet, Marta Calvi, Vincenzo Canale, V. V. Lapin, Geoffrey Smith, C. De Clercq, Marc Winter, G. Myatt, P. Collins, Maurizio Canepa, V. Obraztsov, K. D. Brand, W. J. Murray, L. Vitale, H. B. Crawley, D. Gele, M. Davenport, P. P. Allport, N. I. Zimin, S. Ragazzi, N. Redaelli, B. Golob, C. Kreuter, F. Dupont, P. Seager, Paolo Ronchese, A. G. Frodesen, O. Yushchenko, N. J. Kjaer, W. Oberschulte-Beckmann, E. K. Johansson, G. A. Chelkov, B. Loerstad, H. Wahlen, I. Roncagliolo, Klaus Hamacher, Daniel Bloch, D. Radojicic, Steinar Stapnes, M. Verlato, Ahmimed Ouraou, Tiziano Camporesi, G. Cosme, Juan Abel Barrio, R. C. Shellard, L. Di Ciaccio, Josef Hrubec, T. Burgsmueller, N. Vassilopoulos, Maria Elena Pol, J. Chauveau, S. Katsanevas, Jan Krolikowski, Luiz Mundim, N. N. Khovanski, W. Bartl, Z. Hajduk, Maciej Górski, Demetrios Loukas, I. A. Tyapkin, V.A. Uvarov, R. A. Brenner, Robert S. Brown, S. J. Alvsvaag, E. Agasi, V. Ruhlmann-Kleider, K. H. Becks, P. Lutz, G. Tristram, P. J. Holt, Marco Bozzo, M. L. Andrieux, Manolis Dris, R. Moeller, M. Petrovyck, W. Krupinski, R. Sekulin, V. Nikolaenko, P. Frenkiel, M. Karlsson, A. M. Segar, Sandra Amato, T. A. Filippas, K. Belous, M. Regler, F. Fontanelli, J. P. Laugier, E. Vallazza, T. Moa, M. Pimenta, B. A. Khomenko, R. Barate, P. Roudeau, C. Vander Velde, G. Valenti, Matteo Pegoraro, A. Firestone, L. K. Resvanis, J. Baudot, I. V. Ajinenko, C. Walck, M. S. Bilenky, V. Malychev, Massimo Caccia, L.J. Carroll, A. Buys, A. Normand, C. Weiser, R. Ehret, A. Romero, P. V. Chliapnikov, Imad Baptiste Laktineh, D. Y. Bardin, S. Squarcia, H. Saarikko, Yu. Sedykh, Francesco Navarria, Alberto Benvenuti, W.S.C. Williams, P. Langefeld, Lucio Cerrito, T. Maron, Mogens Dam, H. Mueller, F. Pierre, Vincent Hedberg, A. Ferrer, Ugo Amaldi, J. Medbo, W. De Boer, E. Zevgolatakos, G. Sciolla, G. Maehlum, P. Juillot, D. W. Lane, P. Antilogus, Fabio Cossutti, J. N. Jackson, P. Pages, P. Weilhammer, H. J. Hilke, M. Battaglia, V. Chorowicz, D. Vilanova, J-C. Marin, B. Erzen, R. Gokieli, L. Gorn, Amiran Tomaradze, Fares Djama, O. Ullaland, R. Lauhakangas, Ph. Charpentier, T. Brenke, M. Zito, G. Ekspong, Josef Strauss, V. Chabaud, M. Espirito Santo, W. Venus, T. Lesiak, J. Rames, W. Van Doninck, P. N. Ratoff, W. Neumann, P. Kokkinias, Y. Dufour, Sandor Czellar, P. Gunnarsson, Spyros Tzamarias, O. Tchikilev, B. Franek, S. Lamblot, L. Bugge, P. Niss, W. T. Meyer, K. Grzelak, M. Prest, Lydia Roos, M. Mazzucato, Allan Hallgren, S. Simonetti, M. Begalli, R. Nicolaidou, A. J. Camacho Rozas, I. Kronkvist, J. P. Gerber, C. K. Legan, G. Polok, R. Orava, M. Donszelmann, Yu. Gouz, Danilo Zavrtanik, F. Stichelbaut, P. Buschmann, R. Mc Kay, C. Martinez-Rivero, J. Drees, William Trischuk, A. Markou, G. Eigen, A. Andreazza, Evangelos Gazis, Tiziano Rovelli, B. Bouquet, Ernesto Migliore, D. Z. Toet, P. Siegrist, P. H. Kramer, I. Ripp, R. Keranen, F. Zach, S. S. Meyer, R. Janik, Stanislav Nemecek, Francisco Matorras, N. Pukhaeva, Pierre Billoir, D. Souza-Santos, G. Della Ricca, B. Tome, Th. D. Papadopoulou, M. Dracos, L. Chaussard, J. Dahm, C. Defoix, F. Fulda-Quenzer, E. Graziani, J. E. Augustin, J. M. Brunet, D. J. Holthuizen, Cristian Stanescu, P. Branchini, P. A. Fischer, Vaclav Vrba, H. Schneider, Y. Sacquin, Hans Dijkstra, C. Gaspar, T. L. Hessing, R. Contri, Wolfgang Adam, G. C. Zucchelli, Yu. Belokopytov, V. Lepeltier, Paolo Checchia, Ph. Gavillet, R. Henriques, M. Kaiser, M. Gunther, J. MacNaughton, C. Caso, Rupert Leitner, G. Piana, Claire Bourdarios, P. Paganini, M. Nieuwenhuizen, G. Matthiae, Luc Pape, A. Maio, L. Brillault, J. P. Engel, M. V. Castillo Gimenez, Paul Dauncey, N. Demaria, G. Damgaard, V. Gracco, Klaus Moenig, M. A. Houlden, W. Da Silva, W. A. Mitaroff, F. Richard, P. Chochula, C. Matteuzzi, S. Almehed, R. Chierici, F. Hahn, F. Formenti, F. Cao, N. Ershaidat, V. Bocci, O. Kouznetsov, Martino Margoni, E. Fokitis, Luis Peralta, F. Kapusta, Ugo Gasparini, K. A. Drees, Guido Barbiellini, J. Guy, Marek Szczekowski, E. Rosso, H. Klein, Tim Adye, K. Osterberg, A. Baroncelli, P. Van Dam, G. D. Alekseev, C. De La Vaissiere, Mario Sannino, M. Mc Cubbin, K. Hultqvist, Gary John Barker, K. Woschnagg, A. Tilquin, L. De Paula, Pawel Jalocha, Barry King, E. Falk, M. J. Bates, E. Spiriti, M. Bonesini, R. Frühwirth, Toralf Bernhard Skaali, T. Spassov, D. Gamba, M. Witek, J. Timmermans, B. Dalmagne, F. Verbeure, B. Stugu, S. Gumenyuk, M. Gandelman, A. Lipniacka, Milos Lokajicek, D. Bertrand, L. Tortora, F. J. Harris, M. Pindo, E. Cortina, W. Ruckstuhl, Carlos Lacasta, Krzysztof A. Rybicki, G. Borisov, M. Baubillier, Achille Stocchi, A. M. Zaitsev, Alexander Vodopyanov, F. Bianchi, B. Koene, F. Parodi, E. Karvelas, J. Cuevas Maestro, T. Todorov, M. Wielers, K. Karafasoulis, M. L. Turluer, D. Reid, R. Sosnowski, P. Vincent, Gianni Zumerle, F. Naraghi, P. Poropat, Andromachi Tsirou, Andre Augustinus, Paolo Morettini, J. G. Loken, C. De Saint-Jean, P. Beilliere, S. Marti i Garcia, D. Edsall, G. Grosdidier, A. Ruiz, M. A E Schyns, W. Hao, O. Barring, A. Onofre, T. J. V. Bowcock, F. Carena, A. G. Olshevski, U. Schwickerath, Maria Roberta Monge, A. Zalewska, M. Pernicka, Jesus Marco, G. Lenzen, R. Strub, Jacques Lemonne, F. Martinez-Vidal, V. Kostioukhine, M. Koratzinos, Laurent Mirabito, M. Feindt, S. Sánchez Navas, P. Negri, P. Sponholz, Göran Jarlskog, G. P. Gopal, W. D. Apel, Dietrich Liko, P. Privitera, Chariclia Petridou, Branislav Sitar, M. Reale, Daniel Treille, M. Bigi, J. Ridky, C. Parkes, Nikita Smirnov, and Andrea Perrotta

Subjects
Scattering cross-section, Physics, Particle physics, Photon, Physics and Astronomy (miscellaneous), 010308 nuclear & particles physics, Hadron, Function (mathematics), 01 natural sciences, Nuclear physics, Distribution (mathematics), Electromagnetic calorimeter, 0103 physical sciences, Production (computer science), 010306 general physics, Parton shower
Abstract

An analysis is presented of inclusiveπ 0 production inZ 0 decays measured with the DELPHI detector. At low energies,π 0 decays are reconstructed by using pairs of converted photons and combinations of converted photons and photons reconstructed in the barrel electromagnetic calorimeter (HPC). At high energies (up to $$x_p = 2 \cdot p_\pi /\sqrt s = 0.75$$ ) the excellent granularity of the HPC is exploited to search for two-photon substructures in single showers. The inclusive differential cross section is measured as a function of energy forqq andbb events. The number ofπ 0’s per hadronicZ 0 event isN(π 0)/Z 0 =9.2±0.2(stat)±1.0(syst) and forbb events the number ofπ 0’s is N(π 0)/bb=10.1±0.4(stat)±1.1(syst). The ratio of the number ofπ 0’s inbb events to hadronicZ 0 events is less affected by the systematic errors and is found to be 1.09±0.05±0.01. The measuredπ 0 cross sections are compared with the predictions of different parton shower models. For hadronic events, the peak position in theξ p=ln(1/xp) distribution isξ* p =3.90 −0.14 +0.24 . The average number ofπ 0’s from the decay of primary B hadrons is found to be N(B→π 0 X)/B hadron=2.78±0.15(stat)±0.60(syst).

Published
2016

21. Measurement of the partial width of the decay of the Z0 into charm quark pairs

Author

U. Kruener-Marquis, M. L. Turluer, D. Reid, D. Bertrand, P. Siegrist, P. Vaz, I. Lippi, J-C. Marin, P. Lutz, E. K. Johansson, D. Bollini, P. B. Renton, W. S. C. Williams, Spyros Tzamarias, P. Poropat, Andromachi Tsirou, P. V. Chliapnikov, Andre Augustinus, A. Wehr, Edoardo Castelli, D. Radojicic, E. Menichetti, E. Fokitis, Paula Eerola, D.N. Edwards, S. Biagi, Tiziano Rovelli, M. Cresti, S. Gawne, Wolfgang Adam, M. Davenport, J. Pyyhtia, R. Keranen, L. Paper, E. I. Rosenberg, P. Frenkiel, A. Passeri, V.A. Uvarov, A. M. Segar, V. Nikolaenko, G. Trustram, Tord Ekelof, H. Staeck, P. Kapusta, G. E. Kalmus, M. Kostrikov, F. Grard, V. Vrba, S. Squarcia, F. Cao, E. N. Gazis, B. Korzen, R.B. Kadyrov, Bengt Lund-Jensen, G. Ekspong, Giovanni Darbo, F. Couchot, A. A. Rademakers, W. T. Meyer, Anthony Lincoln Read, A. P. Ostankov, J. Bjarne, H. Palka, Itzhak Roditi, Natale Demaria, Gueorgui Chelkov, A. Ruiz, G. R. Wilkinson, C. Vander Velde, Wojciech Kucewicz, L. Tortora, T. Tuuva, J. N. Jackson, S. O. Holmgren, M. Szczekowski, G. Galeazzi, A. Ferrer, L. S. Vertogradov, Borge Svane Nielsen, H. Burmeister, F. Barao, Roberto Cirio, L. K. Resvanis, F. Simonetto, E. Lieb, J. J. Lozano, M. H. Gros, U. Nnau-Lorzen, M. S. Bilenky, S. Ferroni, P. Bambade, K. Kurvinen, P.S.L. Booth, J. Lindgren, L.J. Carroll, W. Klempt, L. Lyons, O. Doll, Krzysztof Doroba, George Kalkanis, Chiara Meroni, Robert S. Brown, Tiziano Camporesi, Klaus Hamacher, M. Bonapart, Massimo Caccia, J. G. Loken, S. D. Hodgson, C. Bricman, A. Pullia, M. I. Laakso, L. O. Eek, R. C. Shellard, Josef Hrubec, M. A. Winter, S. Simonetti, J. Maillard, T. A. Filippas, T. Hofmokl, S. Gumenyuk, R. A. Brenner, Ariella Cattai, P. Ronschese, D. Benedic, E. Higon, R. Seufert, F. Scuri, J. Sanxhez, A. M. Wetherell, Th. D. Papadopoulou, J. H. Bibby, Pierre Billoir, G. Cosme, A. Baroncelli, Marco Bozzo, M. J. Bates, B. De Lotto, Guenakh Mitselmakher, G. Crosetti, S. J. Alvsvaag, Leif J. Jönsson, Ugo Gasparini, D. C. Fries, P. Weilhammer, I. Belokopytov, D. Husson, I. A. Tyapkin, T. S. Spassoff, A. Campion, M. Pegoraro, M. Pernicka, G. Lenzen, R. Strub, J. E. Campagne, M. Koratzinos, L. Lanceri, Paul Baillon, E. C. Katsoufis, G. Myatt, E. Graziani, Mikko Voutilainen, P. S. Iversen, F. Fontanelli, H. Furstenau, E. Sanchis, A. Lopez-Fernandez, Marta Calvi, L. Di Ciaccio, C. Defoix, P. Szymanski, A. Firestone, N. Redaelli, J. Marco, S. Ueberschaer, F. Waldner, H. Wahlen, Ariel Goobar, Ugo Amaldi, H. Forsbach, J. W. Lamsa, Guido Barbiellini, H. Herr, L. G. Tkatchev, Jose M. Benlloch, A. Grant, Mogens Dam, C. Lambropoulos, Patrick Jarry, G. Rinaudo, Clara Troncon, J. Guy, W. De Boer, Geoffrey Smith, E.N. Tsyganov, J. H. Wickens, W. Dulinski, Jose Luis Contreras, A. Fenyuk, J. H. Koehne, M. Pimenta, K. Woschnagg, B. A. Khomenko, A. De Min, A. Stocchi, Joao Varela, Hans Dijkstra, A. Markou, T. Buran, N. De Groot, P. Beltran, M. Vollmer, P. Delpierre, Tim Adye, W. D. Apel, B. Franek, P. Kluit, M. Mazzucato, U. Rossi, C. Walck, Paolo Giacomelli, J. E. Hooper, Francesco Navarria, L. Vibert, K. H. Becks, G. W. Van Apeldoorn, M. P. Clara, G. D. Alekseev, P. Negri, J. M. Brunet, M. Jonker, Pierre Astier, J. Zúñiga, M. Boratay, P. Abreu, P. Borgeaud, R. Sekulin, A. Zalewska, M. Baubillier, K. D. Brand, E. Vallazza, L. Ventura, G. Hamel de Monchenault, H. Schneider, Göran Jarlskog, Jan Ridky, L. Mathis, T. Moa, M.A. Lopez Aguera, M. Mc Cubbin, K. Hultqvist, H. Borner, C. Pinori, B.D. Hyams, Mikael Berggren, S. Ragazzi, A. Sebastia, Francesca Romana Cavallo, Josef Strauss, E. Lillethum, A. Letessier-Selvon, Mitchell Wayne, P. Zalewski, V. Lepeltier, G. Kantarjian, B. Grossetete, Allan Hallgren, Vegni, Giovanni Valenti, F. Udo, W. Venus, G. Maehlum, I. Herbst, V. Ruhlmann, Paolo Checchia, Jacques Lemonne, J. Velasco, E. Rosso, H. Klein, Ph. Gavillet, V. V. Lapin, Hans Muller, Fares Djama, V. Canale, N. K. Visnevskiy, C. De Clercq, F. Kapusta, L. Bugge, J. Drees, P. D. Dauncey, N. J. Kjaer, A. J. Camacho Rozas, G. Sette, M. Sessa, Maria Elena Pol, G. Leder, Alexander Vodopyanov, B. Åsman, G. Zumerle, L. Cerrito, F. Bianchi, P. N. Bogolubov, F. Ledroit, Kjell Fransson, S. Katsanevas, P. Privitera, D. Z. Toet, T. Kreuzberger, D. Vilanova, Christine Kourkoumelis, E. Dahl-Jensen, M. Schaeffer, D. Y. Bardin, P. Beilliere, D. Crennell, W. Van Doninck, P. N. Ratoff, Andrea Perrotta, F. Alted, J. Dolbeau, F. Mandl, G. Smadja, A. Klovning, Daniel Treille, Paul Allen, R. Lucock, R. Sosnowski, Olga Botner, Krzysztof Korcyl, A. Tilquin, Jorge-Armando Benitez Garcia, U. Mjoernmark, R. Gokieli, B. W. Heck, P.I. Zarubin, J. J. Hernandez, J. Cuevas Maestro, P. O. Hulth, P. Yepes, M. Regler, C. J. Beeston, J. Krolikowski, N. Magnussen, P. Herquet, H. De Boeck, V. Falaleev, E. Daubie, P. Laurikainen, M. De Beer, M. R. Monge, B. Jean-Marie, S. Braibant, S. Tavernier, M. Tyndel, M. Bonesini, J. A. M. A. Buytaert, Y. Gouz, N. Crosland, G. Gopal, Y. Sacquin, Andrey Korytov, R. Llosa, H. Mueller, J.M. Gago, H. Foeth, D. Wormald, R. Contri, M. Fernandez Alonso, T. Bolognese, E. J. Sanchez, R. Orava, U. Trevisan, R. Zukanovich Funchal, M. Szeptycka, W. Bartl, J. Wikne, N. Smirnov, V. Perevozchikov, J. A. Valls Ferrer, M. Turala, Manolis Dris, J. P. Gerber, Mario Sannino, K. W. Glitza, P. Roudeau, G. Skjevling, J. P. Laugier, F. Stichelbaut, A. De Angelis, D. Delikaris, R. Dzhelyadin, D. Gamba, C. Stanescu, R. Lauhakangas, N. van Eijndhoven, E. Zevgolatakos, G. Voulgaris, F. Verbeure, Daniel Bloch, Ahmimed Ouraou, V.M. Golovatyuk, Marcos Dracos, B. Bouquet, Juan Fuster, M. Kopf, B. Dalmagne, Laurent Chevalier, R. Zitoun, F. Fulda-Quenzer, P. Kokkinias, Milos Lokajicek, J. Kesteman, E. G. Anassontzis, J. P. Engel, M. V. Castillo Gimenez, G. Damgaard, O. Pingot, V. Gracco, H. Saarikko, Pavlos Ioannou, A.K. Topphol, Klaus Moenig, M. A. Houlden, G. Matthiae, W. A. Mitaroff, F. Richard, M. Hahn, F. Naraghi, V. G. Timofeev, S. Almehed, K. Spang, F. Hahn, C. Matteuzzi, E. Lillestol, G. Grosdidier, Alessandra Romero, I.A. Gritsaenko, J. E. Augustin, A. Zaitsev, S. Haider, A. N. Sissakian, Claudia J. Stubenrauch, Eleuterio Spiriti, C. Caso, H. B. Crawley, P. Morettini, Pierre Juillot, B. Koene, A.N. Diddens, D. Loukas, M. Crozon, R. Pain, V. Obraztsov, O. Barring, S. Dagoret, P. Van Dam, Renato Turchetta, C. De La Vaissiere, G. Zhang, Pawel Jalocha, Barry King, R. Frühwirth, J. Timmermans, P. Branchini, G. E. Theodosiou, M.D.M. De Fez Laso, R. Moeller, A. Pinsent, N. Yamdagni, M. T. Trainor, Sandor Czellar, N. Brummer, G. Wormser, Pieter David, W. H. Range, W. Krupinski, S. Maltezos, H. J. Hilke, J. Skeens, G. Stavropoulos, V. Chorowicz, R. Mc Kay, N. I. Zimim, F. Adami, Jürgen H. Werner, Philippe Charpentier, Francisco Matorras, T. B. Skaali, F. J. Harris, A. G. Frodesen, Z. Hajduk, Maciej Górski, A. Hakansson, C. Bosio, E. Vlasov, R. Holmes, Delphi, Collaboration, Abreu, P., Adam, W., and Canale, Vincenzo

Subjects
Nuclear and High Energy Physics, Particle physics, E+E ANNIHILATION, Meson, LUND MONTE-CARLO, Electron–positron annihilation, Hadron, 01 natural sciences, JET FRAGMENTATION, Charm quark, Standard Model, law.invention, Nuclear physics, PHYSICS, ENERGY, Pion, D-STAR-MESON, CROSS-SECTION, law, 0103 physical sciences, 010306 general physics, Collider, Nuclear Experiment, Boson, Physics, 010308 nuclear & particles physics, High Energy Physics::Phenomenology, Physique des particules élémentaires, Física nuclear, High Energy Physics::Experiment, Particle Physics - Experiment
Abstract

A determination of the partial width Γc̄ of the Z0 boson into charm quark pairs is presented, based on a total sample of 36 900 Z0 hadronic decays measured with the DELPHI detector at the LEP collider. The production rate of cc events is derived from the inclusive analysis of charged pions coming from the decay of charmed meson D*+-→D0π+ and D*-→D̄0π- where the π± is constrained by kinematics to have a low pT with respect to the jet axis. The probability to procedure these π± from D*± decay in cc events is taken to be 0.31±0.05 as measured at √S = 10.55 GeV. The measured relative partial width Γ∞/Γh = 0.162± 0.030(stat.) ± 0.050(syst.) is in good agreement with the standard model value of 0.171. Together with our previous measurement of the total hadronic width Γh this implies Γ∞ = 282 ± 53 (stat.) ± 88 (syst.) MeV., 0, SCOPUS: ar.j, info:eu-repo/semantics/published

Published
2016

22. Two-particle angular correlations in e(+)e(-) interactions compared with QCD predictions

Author

Gunter Wolf, Maria Elena Pol, F. Barao, I. Lippi, S. Katsanevas, D. Y. Bardin, J. H. Wickens, Marco Paganoni, I. Bozovic, P. Kubinec, Clara Troncon, H. Foeth, P. Bruckman, R. Ehret, T. Spassov, G. Valenti, Yu. Sedykh, A. Galloni, L. Vitale, F. Martinez-Vidal, Antonios Leisos, D. Radojicic, K. Stevenson, Mario Sannino, B. Bouquet, Pierre Juillot, E. Boudinov, S. O. Holmgren, T. Tabarelli, R. Orava, G. Eigen, R. Alemany, G. Morton, Paolo Privitera, R. Sosnowski, M. Baubillier, S. Hoorelbeke, Paolo Ronchese, L. S. Vertogradov, E. Ferrer-Ribas, F. Naraghi, R. Nicolaidou, D. Fassouliotis, M. Bonesini, Georgios Fanourakis, Stefano Ragazzi, I. Gonzalez Caballero, N. J. Kjaer, H. Rahmani, M. Mazzucato, J. R. Mahon, V. Canale, J. Dolbeau, Alexander Vodopyanov, B. Ueberschaer, C. Cerruti, Luca Tortora, F. Pierre, Morgan Lethuillier, G. Borisov, P.S.L. Booth, Toralf Bernhard Skaali, T. Myklebust, Manfred Krammer, P. Lutz, A. Onofre, Ariella Cattai, Y. Arnoud, P. Herquet, J. Libby, Ole Røhne, G. Cosme, R. Lopez-Fernandez, Vincent Hedberg, T. J. V. Bowcock, Mariusz Witek, M. Pimenta, F. Bianchi, R. Contri, B. A. Khomenko, D. W. Lane, R. C. Shellard, Josef Hrubec, M. Gunther, Wojciech Kucewicz, D. Gamba, G. Voulgaris, Paolo Morettini, J. G. Loken, P. Beilliere, F. Ledroit, A. De Angelis, G. Vegni, A. Sheridan, T. L. Hessing, C. Green, E. Piotto, P. Collins, G. Tristram, N. Ghodbane, T. Burgsmueller, Rupert Leitner, Piotr Zalewski, Tord Ekelof, A. Stocchi, Francesco Navarria, A. M. Segar, J. Drees, G. Ekspong, Klaus Hamacher, X. Moreau, F. Verbeure, M. S. Bilenky, O. Ullaland, L.J. Carroll, E. K. Johansson, G. Piana, G. Matthiae, Daniel Bloch, Manolis Dris, B. Loerstad, J. Palacios, Steinar Stapnes, Krzysztof Nawrocki, P. Langefeld, B. Stugu, Fabio Cossutti, Ahmimed Ouraou, M. Gandelman, J. Cuevas Maestro, P. N. Ratoff, J. H. Lopes, U. Parzefall, A. Firestone, I. van Vulpen, Evangelos Gazis, J. Garcia, A. Tomaradze, Martijn Mulders, N. Vassilopoulos, Mattias Ellert, Alberto Benvenuti, S. Heising, Igor Boyko, T. Lesiak, D. Stampfer, M. Begalli, H. Palka, C. Mulet-Marquis, W. Da Silva, Oxana Smirnova, Oliver Passon, Juan Fuster, M. A. Bizouard, R. Lauhakangas, Ph. Charpentier, J. M. Heuser, A. G. Frodesen, U. Mjoernmark, Luis Peralta, F. Kapusta, B. Franek, H. T. Phillips, Martino Margoni, E. Fokitis, T. Brenke, F. Richard, V. Ruhlmann-Kleider, P. Seager, A. Miagkov, L. Chaussard, P. Chochula, C. Matteuzzi, V. Malychev, K. Karafasoulis, A. Di Diodato, J-C. Marin, B. Erzen, R. Gokieli, E. Kriznic, F. J. Harris, Paulo J. S. Gonçalves, A. Pullia, F. Terranova, P. Van Dam, S. Tzamarias, M. L. Turluer, D. Reid, F. Simonetto, P. Abreu, G. Orazi, P. A. Fischer, Matteo Pegoraro, S. Almehed, R. Chierici, F. Hahn, Patrick Jarry, M. Nikolenko, K. Grzelak, Ugo Gasparini, O. Tchikilev, N. I. Zimin, Maciej Górski, J. D. Durand, G. Leder, V. Obraztsov, M. Gaspar, B. Åsman, L. Di Ciaccio, N. N. Khovanski, M. Feindt, S. Sánchez Navas, Allan Hallgren, V. Lefebure, Antonio Baroncelli, L. Leinonen, G. Rinaudo, H. M. Blom, Y. Sacquin, A. Tonazzo, A. G. Olshevski, P. Negri, D. Crennell, F. Mandl, F. Fulda-Quenzer, Danilo Zavrtanik, Gianni Zumerle, J. P. Laugier, L. Bugge, A. J. Camacho Rozas, D. Z. Toet, K. Muenich, Kathy Huet, Valeriy Pozdniakov, P. Ferrari, U. Schwickerath, Marek Szczekowski, D. J. Holthuizen, N. Neufeld, F. Tegenfeldt, T. Todorov, E. G. Anassontzis, Y. Belokopytov, Josef Strauss, R. Muresan, E. Graziani, Sofia Andringa, J. M. Brunet, Guido Barbiellini, Winfried Mitaroff, V.A. Uvarov, J. Guy, A. Tilquin, J. W. Lamsa, Dimos Sampsonidis, Per Jönsson, Pawel Jalocha, Barry King, M. Davenport, M. Colomer, M. A. Winter, P. Gris, P. Poropat, Alessandra Romero, V. Chabaud, M. Espirito Santo, W. Venus, A. Ruiz, J. P. Engel, P. Bambade, M. V. Castillo Gimenez, P. V. Chliapnikov, A. Kiiskinen, A. Duperrin, Louis Lyons, L.N. Gerdyukov, H. Klein, R. Janik, U. Mueller, Andromachi Tsirou, Phillip Allport, G. Della Ricca, P. Rebecchi, S. Stanic, Tim Adye, M. A E Schyns, A. Deghorain, E. Cortina, E. Spiriti, W. Bonivento, Maria Roberta Monge, R. Frühwirth, P. Sponholz, W. T. Meyer, Göran Jarlskog, Andre Augustinus, G. Damgaard, E. Higon, Sandra Amato, J. P. Gerber, O. Klapp, K. Osterberg, T. Buran, Markus Elsing, Tiziano Camporesi, E. I. Rosenberg, B. Golob, K. Kurvinen, A. Petrolini, G. D. Alekseev, F. Scuri, Borge Svane Nielsen, J. Timmermans, D. Bertrand, Ch. Jarlskog, T. Podobnik, S. De Brabandere, K. Belous, Guy Wilkinson, V. Nomokonov, Krzysztof Doroba, Chiara Meroni, F. Glege, Wolfgang Adam, D. Wicke, B. De Lotto, A. Malek, Juergen Thomas, G. Crosetti, Evgueni Vlasov, Jiri Chudoba, A. Zalewska, V. Gracco, W. D. Apel, José Salt, B. Jean-Marie, P. J. Holt, Marcos Dracos, Laurent Mirabito, A. N. Sisakian, N. G. Redaelli, I. Gil, Peter Kluit, S. Squarcia, H. Saarikko, F. Mazzucato, A. Normand, J. H. Cowell, A. Sadovsky, Amelia Maio, M. Mc Cubbin, Marco Bozzo, K. Hultqvist, Cristian Stanescu, P. Branchini, H. Schneider, D. Rakoczy, Corinne Berat, Olga Botner, Rafael Marco, I. A. Tyapkin, R. Silvestre, Demetrios Loukas, Dietrich Liko, Klaus Moenig, Fabrizio Parodi, Denis Gelé, N. Pukhaeva, M. A. Houlden, S. Marti i Garcia, G. Transtromer, Chariclia Petridou, V. Verzi, A. Sopczak, I. V. Ajinenko, D. Vilanova, Carmen García, Reynald Pain, A. Passeri, B. Buschbeck, R. Paiva, E. C. Katsoufis, G. Gopal, Maarten Boonekamp, Daniel Treille, M. Bigi, L. De Paula, G. A. Chelkov, Ugo Amaldi, W. De Boer, E. Zevgolatakos, S. Haider, E. Falk, P. Roudeau, Petar Adzic, A. W. Borgland, C. Caso, J. Fayot, J. Ridky, C. Bosio, C. Parkes, H. B. Crawley, Richard Brenner, J. N. Jackson, F. Carena, S. Cabrera, C. Walck, R. Reinhardt, G. Mc Pherson, H. Herr, C. Weiser, J. Rames, Andrea Perrotta, L. G. Tkatchev, P. Kokkinias, M. Pernicka, A. Nygren, Jesus Marco, G. Lenzen, S. Fichet, J. Mazik, V. Kostioukhine, M. Koratzinos, D. Knoblauch, L. Gorn, C. Gaspar, Chiara Mariotti, Ph. Schwemling, O. Yushchenko, S. Hahn, R. Sekulin, Francesca Romana Cavallo, N. Neumeister, G. C. Zucchelli, V. V. Lapin, C. De Clercq, Jelena Krstic, W. J. Murray, J. J. Hernandez, R. Strub, T. Moa, O.M. Kouznetsov, V. Lepeltier, M. Siebel, Paolo Checchia, Ph. Gavillet, S. Gamblin, A. Markou, Tiziano Rovelli, J. MacNaughton, G. Barker, Claire Bourdarios, Flavio Fontanelli, Attilio Andreazza, Luc Pape, Vaclav Vrba, R. Mc Nulty, Hans Dijkstra, G. Smadja, J. Van Eldik, V. Chorowicz, G. W. Van Apeldoorn, L. Ventura, P. Rosinsky, R. Moeller, P. Andersson, L. K. Resvanis, Massimo Caccia, Christine Kourkoumelis, Vladimir Nikolaenko, L. Simard, Natale Demaria, C. Martinez-Rivero, P. B. Renton, B. Marechal, Marta Calvi, Geoffrey Smith, Z. Krumstein, S. Paiano, A. De Min, G. Sajot, U. Flagmeyer, Anna Lipniacka, C. Joram, R. Barbier, P. Delpierre, M. Verlato, G. Myatt, M. Berggren, Antonio Ferrer, D. Bertini, R. Jacobsson, S. Todorova, Nikolaos P. Mastroyiannopoulos, T. G M Malmgren, H. Wahlen, K. H. Becks, E. Vallazza, J. M. Lopez, C. Kreuter, P. Buschmann, B. Muryn, R. Mc Kay, J. Grahl, R. Keranen, Francisco Matorras, Paul Baillon, Alexander Lincoln Read, M. Szeptycka, Marc Besancon, Konstantinos Papageorgiou, Th D. Papadopoulou, J. E. Augustin, J. Yi, M. Battaglia, B. Tome, P. Antilogus, A. Van Lysebetten, Sandor Czellar, G. Polok, Yu. Gouz, Ernesto Migliore, Delphi, Collaboration, Abreu, P., Adam, W., Canale, Vincenzo, Institut de Physique Nucléaire de Lyon (IPNL), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de l'Accélérateur Linéaire (LAL), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC), Physique Corpusculaire et Cosmologie - Collège de France (PCC), Collège de France (CdF (institution))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut de Recherches Subatomiques (IReS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Cancéropôle du Grand Est-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Centre de Physique des Particules de Marseille (CPPM), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), DELPHI, BARBIELLINI AMIDEI, Guido, Cossutti, F., DELLA RICCA, Giuseppe, Poropat, Paolo, Vitale, Lorenzo, Delphi (IHEF, IoP, FNWI), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Collège de France (CdF)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Aix Marseille Université (AMU), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS), and UCL - SST/IRMP - Institut de recherche en mathématique et physique

Subjects
Particle physics, Nuclear and High Energy Physics, Hadron, Monte Carlo method, Jet (particle physics), 01 natural sciences, Partícules (Física nuclear), Spectral line, Nuclear physics, MONTE-CARLO, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], SPECTRA, 010306 general physics, DELPHI, Physics, Quantum chromodynamics, JETS, Annihilation, 010308 nuclear & particles physics, High Energy Physics::Phenomenology, Function (mathematics), LARGE ELECTRON POSITRON COLLIDER, PARTICLE PHYSICS, Large Electron–Positron Collider, Física nuclear, High Energy Physics::Experiment, Particle Physics - Experiment
Abstract

Two-particle angular correlations in jet cones have been measured in e(+)e(-) annihilation into hadrons at LEP energies (root s = 91 and 183 GeV) and are compared with QCD predictions using the LPHD hypothesis. Two different functions have been tested. While the differentially normalized correlation function shows substantial deviations from the predictions, a globally normalized correlation function agrees well. The size of alpha(s)(eff) land other QCD parameters) and its running with the relevant angular scale, the validity of LPHD, and problems due to non-perturbative effects are discussed critically. (C) 1998 Elsevier Science B.V. All rights reserved.

Published
2016

23. BOSE-EINSTEIN CORRELATIONS IN THE HADRONIC DECAYS OF THE Z(0)

Author

Jorge-Armando Benitez Garcia, D. J. Holthuizen, T. J. V. Bowcock, K. Furnival, F. Simonetto, B. A. Della Riccia, G. D. Alekseev, E. Torassa, Wolfgang Adam, G. Leder, B. Åsman, Itzhak Roditi, C. Gaspar, M. Mc Cubbin, K. Hultqvist, Maria Elena Pol, S. Katsanevas, Juan Fuster, M. T. Trainor, Yu. Belokopytov, D. Crennell, F. Mandl, G. Smadja, R. Contri, M. Karlsson, M. Jonker, S. Schael, S. Ueberschaer, T. A. Filippas, R. Lauhakangas, Ph. Charpentier, C. Kourkoumelis, D. Vilanova, M. Pimenta, B. A. Khomenko, M. Regler, Klaus Hamacher, H. Herr, N. De Groot, A. Stocchi, Francesco Navarria, J. Zúñiga, Jelena Krstic, Ugo Gasparini, B. Franek, R. Ehret, F. Couchot, I. Lippi, P. Siegrist, E.N. Tsyganov, J. H. Wickens, B. Muryn, Marco Paganoni, Jose Luis Contreras, W. De Boer, C. Vander Velde, L. Vitale, M. Donszelmann, D. Radojicic, S. J. Alvsvaag, E. Agasi, L. Mathis, M. Los, V. Lepeltier, P. Lutz, T. Maron, Tim Adye, Francesca Romana Cavallo, J. P. Engel, K. A. J. Forbes, J. Bjarne, G. Ekspon, Mitchell Wayne, M. V. Castillo Gimenez, S. D. Hodgson, R. Gokieli, M. S. Bilenky, Andre Tilquin, L.J. Carroll, M. Turala, Spyros Tzamarias, O. Tchikilev, A. G. Olshevski, Paolo Checchia, G. Vegni, Ph. Gavillet, B. Dalmagne, Laurent Chevalier, L. Chaussard, A. Chan, C. Lambropoulos, Ugo Amaldi, E. Zevgolatakos, P. Antilogus, P. E. S. Nilsen, J. T.M. Chrin, E. Anassontzis, G. Damgaard, P. Borgeaud, U. Kruener-Marquis, V. V. Lapin, M. Michelotto, Tord Ekelof, H. Staeck, Mogens Dam, Giovanni Crosetti, Fabrizio Scuri, W.S.C. Williams, P. Abreu, T. Buran, M. Tyndel, O. Pingot, F. Hahn, Rupert Leitner, Th. D. Papadopoulou, Guenakh Mitselmakher, V. Ruhlmann, V. Gracco, G. Matthiae, S. Rossi, C. De Clercq, F. Cao, Maria Roberta Monge, Dietrich Liko, A. Zalewska, Claire Bourdarios, Paolo Ronchese, W. J. Murray, M. Battaglia, W. Van Doninck, Lucio Cerrito, F. Ledroit, G. Stavropoulos, V. Chorowicz, G. Rinaudo, G. Galeazzi, P. Privitera, B. Loerstad, A. De Angelis, G. Lenzen, Milos Lokajicek, Jacques Lemonne, R. Strub, Juan Abel Barrio, Borge Svane Nielsen, V. Bocci, A. Tomaradze, J. Kesteman, N. J. Kjaer, J. J. Lozano, R. Lindner, Martino Margoni, E. Fokitis, H. Mueller, Marco Sessa, A. De Min, Joao Varela, I. Siccama, Piotr Zalewski, G. Sajot, S. Marti, P. Yepes, F. Stichelbaut, Cristian Stanescu, P. Branchini, Krzysztof Doroba, H. Schneider, R. Mc Kay, A. Andreazza, R. Zuberi, Alastair Grant, S. O. Holmgren, L. S. Vertogradov, J. P. Gerber, C. O. Higgins, H. Burmeister, M. Bozzo, J. J. Gomez Y Cadenas, Andrea Perrotta, G. Sette, A. Elliot Peisert, Jan Buytaert, D. Benedic, Peter Kluit, Maciej Górski, I. A. Tyapkin, O. Kouznetsov, D. Isenhower, V.A. Uvarov, Klaus Moenig, M. A. Houlden, Olga Botner, Krzysztof Korcyl, L. Tortora, T. S. Spassoff, R. A. Brenner, G. Myatt, L. Bugge, G. Tristram, Paula Eerola, Daniel Treille, W. Da Silva, W. A. Mitaroff, A.N. Sisakian, Carmen García, Robert S. Brown, A. J. Camacho Rozas, B. Nijjhar, D. Z. Toet, A. Klovning, D. Y. Bardin, Mario Sannino, G. Hamel de Monchenault, G. E. Kalmus, J. N. Jackson, M. A. Lopez Aguera, B. Bouquet, R. Mc Nulty, K. Woschnagg, P. Herquet, A. Firestone, H. De Boeck, R. Keranen, B. Jean-Marie, F. J. Harris, Josef Strauss, S. Braibant, V. Chabaud, W. Venus, A. Maltezos, P. Niss, S. Squarcia, L. O. Eek, R. C. Shellard, L. Di Ciaccio, Josef Hrubec, P. Kokkinias, R. Orava, Fernand Grard, M. L. Turluer, Gabriella Sciolla, D. Reid, Gianni Zumerle, R. Holmes, H. Saarikko, T. Tabarelli, H. Foeth, E. Lieb, R. J. Apsimon, J. E. Hooper, Carlos Lacasta, T. L. Hessing, A. M. Segar, J. Ridky, D. Zavrtanik, Krzysztof A. Rybicki, D. Wormald, Francisco Matorras, Manolis Dris, P. Roudeau, N. Yamdagni, F. Richard, M. Hahn, S. Almehed, M. Pegoraro, Javier Sánchez, J. Maillard, I. Kronkvist, M. Mazzucato, Paul Allen, P. S. Iversen, C. Matteuzzi, P. H. Kramer, M. Vollmer, U. Rossi, Paolo Giacomelli, G. Wormser, S. Delorme, Ariella Cattai, M. Zito, F. Fontanelli, M. Voutilainen, S. Volponi, Pierre Billoir, Nikita Smirnov, Chiara Meroni, F. Carena, M. Szczekowski, P. Vaz, P. Poropat, A. Pullia, Andromachi Tsirou, E. Lillethun, M. Crozon, J. Lindgren, W. T. Meyer, M. Fernandez Alonso, S. Vlassopoulos, U. Mjoernmark, R. Moeller, Andrey Korytov, P. Grosse-Wiesmann, P. Collins, Leif J. Jönsson, B. Boštjančič, V. Perevozchikov, B. Grossetete, Allan Hallgren, V. Obraztsov, Andre Augustinus, A. Wehr, M. Richardson, A. Ruiz, H. Furstenau, C.J. Beeston, Antonio Baroncelli, Roberto Cirio, L. K. Resvanis, M. De Beer, D. Delikaris, Tiziano Camporesi, W. Klempt, J. Dolbeau, M. A E Schyns, P. Bambade, U. Haedinger, R. Zukanovich Funchal, T. Todorov, I. Roncagliolo, H. Palka, G. Skjevling, G. Cosme, G. Barbiellini, J. E. Augustin, M. Chapkin, T. Pettersen, Eugene P. Gross, T. Hofmokl, J. Werner, U. Trevisan, Vaclav Vrba, Natale Demaria, P. F. Honore, Patrick Jarry, P.S.L. Booth, O. Toker, F. Barao, M. Pernicka, M. Bonesini, N. G. Redaelli, Massimo Caccia, I. Hietanen, E. Dahl-Jensen, Vladimir Nikolaenko, G. Borisov, T. A. Fearnley, C. Troncon, Charles Bricman, W. D. Apel, Hans Dijkstra, E. Rosso, H. Klein, J. C. Marin, Daniel Bloch, J. Salt, Jan Krolikowski, N. N. Khovanski, E. Higon, R. Seufert, W. Bartl, Y. Sacquin, Jesus Marco, P. Juillot, A. Lopez-Fernandez, K. Osterberg, Ahmimed Ouraou, V.M. Golovatyuk, H. Wahlen, Ariel Goobar, S. Bosworth, V. Kostioukhine, M. Baubillier, P. Frenkiel, P. Ioannou, J. Straver, Eleuterio Spiriti, J. A. Valls Ferrer, M. J. Bates, J. H. Koehne, H. Briand, A. M. Wetherell, F. Waldner, K. Kulka, Toralf Bernhard Skaali, C. Caso, L. Lanceri, Tuure Tuuva, A. M. Zaitsev, Alexander Vodopyanov, J. P. Laugier, D. Gamba, J. J. Hernandez, G. Voulgaris, P. O. Hulth, F. Bianchi, C. Walck, J. M. Levy, M. Feindt, P. Negri, F. Verbeure, F. Kapusta, H. P. Borner, E. I. Rosenberg, M. P. Clara, K. H. Becks, Stefaan Tavernier, R. Barate, P. Delpierre, E. Daubie, E. Vallazza, Göran Jarlskog, R. Sosnowski, F. Naraghi, V. G. Timofeev, A. Letessier-Selvon, A. Daum, E. Karvelas, H. B. Crawley, G. P. Gopal, A. G. Frodesen, K. D. Brand, J. Pennanen, J. Cuevas Maestro, N. I. Zimin, S. Ragazzi, M. Kopf, E. K. Johansson, C. Bosio, D. Bertrand, Steinar Stapnes, G. W. Van Apeldoorn, P. Weilhammer, J. W. Lamsa, J. Chauveau, W. Bonivento, E. Cortina, W. Ruckstuhl, R. Zitoun, Jon Christopher Wikne, C. Defoix, F. Fulda-Quenzer, K. Kurvinen, E. Castelli, L. Ventura, P. Beltran, G. Grosdidier, Ivan Mikulec, E. Graziani, William Trischuk, Y. Lemoigne, J. Drees, J. M. Brunet, P. D. Dauncey, A. Passeri, M. Weierstall, P. N. Bogolubov, Evangelos Gazis, G. Meola, A. Markou, George Kalkanis, P. B. Renton, Louis Lyons, D. C. Fries, E. C. Katsoufis, Pieter David, Marta Calvi, Vincenzo Canale, Geoffrey Smith, N. Brumner, R. Sekulin, W. Krupinski, G. A. Chelkov, M. Dracos, Demetrios Loukas, G. Valenti, T. Moa, G. Maehlum, D. Fassouliotis, A. Romero, F. Pierre, S. Haider, Fares Djama, A. Ferrer, O. Ullaland, Giovanni Darbo, P. N. Ratoff, D. R. Johnson, P. Szymanski, S. Simonetti, H. J. Hilke, M. Begalli, M. A. Winter, T. Bolognese, A. Petrolini, Y. Dufour, T. Henkes, B. De Lotto, Sandor Czellar, Evgueni Vlasov, G. Polok, G. E. Theodosiou, L. G. Tkatchev, G. Wilkinson, M.D.M. De Fez Laso, M. Berggren, Tiziano Rovelli, Paul Baillon, Alexander Lincoln Read, M. Szeptycka, C. Ronnqvist, A. P. Ostankov, Julien Guy, Luc Pape, Anna Lipniacka, S. Dagoret, P. Van Dam, C. De La Vaissiere, G. Zhang, Pawel Jalocha, Barry King, R. Frühwirth, J. Timmermans, S. L. Blyth, P. Morettini, B. Koene, J. G. Loken, P. Beilliere, R. Pain, W. Hao, O. Barring, Z. Hajduk, M. Davenport, A. Hakansson, P. V. Chliapnikov, Abreu, P, Adam, W, Adye, T, Agasi, E, Alekseev, G, Allen, P, Almehed, S, Alvsvaag, S, Amaldi, U, Anassontzis, E, Andreazza, A, Antilogus, P, Apel, W, Apsimon, R, Åsman, B, Augustin, J, Augustinus, A, Baillon, P, Bambade, P, Barao, F, Barate, R, Barbiellini, G, Bardin, D, Baroncelli, A, Barring, O, Barrio, J, Bartl, W, Bates, M, Battaglia, M, Baubillier, M, Becks, K, Beeston, C, Begalli, M, Beilliere, P, Belokopytov, Y, Beltran, P, Benedic, D, Berggren, M, Bertrand, D, Bianchi, F, Bilenky, M, Billoir, P, Bjarne, J, Bloch, D, Blyth, S, Bocci, V, Bogolubov, P, Bolognese, T, Bonesini, M, Bonivento, W, Booth, P, Borgeaud, P, Borisov, G, Borner, H, Bosio, C, Bostjancic, B, Bosworth, S, Botner, O, Bouquet, B, Bourdarios, C, Bowcock, T, Bozzo, M, Braibant, S, Branchini, P, Brand, K, Brenner, R, Briand, H, Bricman, C, Brown, R, Brumner, N, Brunet, J, Bugge, L, Buran, T, Burmeister, H, Buytaert, J, Caccia, M, Calvi, M, Camacho Rozas, A, Camporesi, T, Canale, V, Cao, F, Carena, F, Carroll, L, Caso, C, Castelli, E, Castillo Gimenez, M, Cattai, A, Cavallo, F, Cerrito, L, Chabaud, V, Chan, A, Chapkin, M, Charpentier, P, Chaussard, L, Chauveau, J, Checchia, P, Chelkov, G, Chevalier, L, Chliapnikov, P, Chorowicz, V, Chrin, J, Cirio, R, Clara, M, Collins, P, Contreras, J, Contri, R, Cortina, E, Cosme, G, Couchot, F, Crawley, H, Crennell, D, Crosetti, G, Crozon, M, Maestro, J, Czellar, S, Dagoret, S, Dahl-Jensen, E, Dalmagne, B, Dam, M, Damgaard, G, Darbo, G, Daubie, E, Daum, A, Dauncey, P, Davenport, M, David, P, Da Silva, W, Defoix, C, Delikaris, D, Della Riccia, B, Delorme, S, Delpierre, P, Demaria, N, De Angelis, A, De Beer, M, De Boeck, H, De Boer, W, De Clercq, C, De Fez Laso, M, De Groot, N, De La Vaissiere, C, De Lotto, B, De Min, A, Dijkstra, H, Di Ciaccio, L, Djama, F, Dolbeau, J, Donszelmann, M, Doroba, K, Dracos, M, Drees, J, Dris, M, Dufour, Y, Eek, L, Eerola, P, Ehret, R, Ekelof, T, Ekspon, G, Peisert, A, Engel, J, Fassouliotis, D, Fearnley, T, Feindt, M, Alonso, M, Ferrer, A, Filippas, T, Firestone, A, Foeth, H, Fokitis, E, Fontanelli, F, Forbes, K, Franek, B, Frenkiel, P, Fries, D, Frodesen, A, Fruhwirth, R, Fulda-Quenzer, F, Furnival, K, Furstenau, H, Fuster, J, Galeazzi, G, Gamba, D, Garcia, C, Garcia, J, Gaspar, C, Gasparini, U, Gavillet, P, Gazis, E, Gerber, J, Giacomelli, P, Gokieli, R, Golovatyuk, V, Gomez Y Cadenas, J, Goobar, A, Gopal, G, Gorski, M, Gracco, V, Grant, A, Grard, F, Graziani, E, Grosdidier, G, Gross, E, Grosse-Wiesmann, P, Grossetete, B, Guy, J, Haedinger, U, Hahn, F, Hahn, M, Haider, S, Hajduk, Z, Hakansson, A, Hallgren, A, Hamacher, K, De Monchenault, G, Hao, W, Harris, F, Henkes, T, Hernandez, J, Herquet, P, Herr, H, Hessing, T, Hietanen, I, Higgins, C, Higon, E, Hilke, H, Hodgson, S, Hofmokl, T, Holmes, R, Holmgren, S, Holthuizen, D, Honore, P, Hooper, J, Houlden, M, Hrubec, J, Hulth, P, Hultqvist, K, Ioannou, P, Isenhower, D, Iversen, P, Jackson, J, Jalocha, P, Jarlskog, G, Jarry, P, Jean-Marie, B, Johansson, E, Johnson, D, Jonker, M, Jonsson, L, Juillot, P, Kalkanis, G, Kalmus, G, Kapusta, F, Karlsson, M, Karvelas, E, Katsanevas, S, Katsoufis, E, Keranen, R, Kesteman, J, Khomenko, B, Khovanski, N, King, B, Kjaer, N, Klein, H, Klempt, W, Klovning, A, Kluit, P, Koehne, J, Koene, B, Kokkinias, P, Kopf, M, Korcyl, K, Korytov, A, Kostioukhine, V, Kourkoumelis, C, Kouznetsov, O, Kramer, P, Krolikowski, J, Kronkvist, I, Krstic, J, Kruener-Marquis, U, Krupinski, W, Kulka, K, Kurvinen, K, Lacasta, C, Lambropoulos, C, Lamsa, J, Lanceri, L, Lapin, V, Laugier, J, Lauhakangas, R, Leder, G, Ledroit, F, Leitner, R, Lemoigne, Y, Lemonne, J, Lenzen, G, Lepeltier, V, Letessier-Selvon, A, Levy, J, Lieb, E, Liko, D, Lillethun, E, Lindgren, J, Lindner, R, Lipniacka, A, Lippi, I, Loerstad, B, Lokajicek, M, Loken, J, Lopez-Fernandez, A, Lopez Aguera, M, Los, M, Loukas, D, Lozano, J, Lutz, P, Lyons, L, Maehlum, G, Maillard, J, Maltezos, A, Mandl, F, Marco, J, Margoni, M, Marin, J, Markou, A, Maron, T, Marti, S, Mathis, L, Matorras, F, Matteuzzi, C, Matthiae, G, Mazzucato, M, Mc Cubbin, M, Mc Kay, R, Mc Nulty, R, Meola, G, Meroni, C, Meyer, W, Michelotto, M, Mikulec, I, Mitaroff, W, Mitselmakher, G, Mjoernmark, U, Moa, T, Moeller, R, Moenig, K, Monge, M, Morettini, P, Mueller, H, Murray, W, Muryn, B, Myatt, G, Naraghi, F, Navarria, F, Negri, P, Nielsen, B, Nijjhar, B, Nikolaenko, V, Nilsen, P, Niss, P, Obraztsov, V, Olshevski, A, Orava, R, Ostankov, A, Osterberg, K, Ouraou, A, Paganoni, M, Pain, R, Palka, H, Papadopoulou, T, Pape, L, Passeri, A, Pegoraro, M, Pennanen, J, Perevozchikov, V, Pernicka, M, Perrotta, A, Petrolini, A, Pettersen, T, Pierre, F, Pimenta, M, Pingot, O, Pol, M, Polok, G, Poropat, P, Privitera, P, Pullia, A, Radojicic, D, Ragazzi, S, Ratoff, P, Read, A, Redaelli, N, Regler, M, Reid, D, Renton, P, Resvanis, L, Richard, F, Richardson, M, Ridky, J, Rinaudo, G, Roditi, I, Romero, A, Roncagliolo, I, Ronchese, P, Ronnqvist, C, Rosenberg, E, Rossi, S, Rossi, U, Rosso, E, Roudeau, P, Rovelli, T, Ruckstuhl, W, Ruhlmann, V, Ruiz, A, Rybicki, K, Saarikko, H, Sacquin, Y, Sajot, G, Salt, J, Sanchez, J, Sannino, M, Schael, S, Schneider, H, Schyns, M, Sciolla, G, Scuri, F, Segar, A, Sekulin, R, Sessa, M, Sette, G, Seufert, R, Shellard, R, Siccama, I, Siegrist, P, Simonetti, S, Simonetto, F, Sisakian, A, Skaali, T, Skjevling, G, Smadja, G, Smirnov, N, Smith, G, Sosnowski, R, Spassoff, T, Spiriti, E, Squarcia, S, Staeck, H, Stanescu, C, Stapnes, S, Stavropoulos, G, Stichelbaut, F, Stocchi, A, Strauss, J, Straver, J, Strub, R, Szczekowski, M, Szeptycka, M, Szymanski, P, Tabarelli, T, Tavernier, S, Tchikilev, O, Theodosiou, G, Tilquin, A, Timmermans, J, Timofeev, V, Tkatchev, L, Todorov, T, Toet, D, Toker, O, Tomaradze, A, Torassa, E, Tortora, L, Trainor, M, Treille, D, Trevisan, U, Trischuk, W, Tristram, G, Troncon, C, Tsirou, A, Tsyganov, E, Turala, M, Turluer, M, Tuuva, T, Tyapkin, I, Tyndel, M, Tzamarias, S, Ueberschaer, S, Ullaland, O, Uvarov, V, Valenti, G, Vallazza, E, Valls Ferrer, J, Velde, C, Van Apeldoorn, G, Van Dam, P, Van Doninck, W, Varela, J, Vaz, P, Vegni, G, Ventura, L, Venus, W, Verbeure, F, Vertogradov, L, Vilanova, D, Vitale, L, Vlasov, E, Vlassopoulos, S, Vodopyanov, A, Vollmer, M, Volponi, S, Voulgaris, G, Voutilainen, M, Vrba, V, Wahlen, H, Walck, C, Waldner, F, Wayne, M, Wehr, A, Weierstall, M, Weilhammer, P, Werner, J, Wetherell, A, Wickens, J, Wikne, J, Wilkinson, G, Williams, W, Winter, M, Wormald, D, Wormser, G, Woschnagg, K, Yamdagni, N, Yepes, P, Zaitsev, A, Zalewska, A, Zalewski, P, Zavrtanik, D, Zevgolatakos, E, Zhang, G, Zimin, N, Zito, M, Zitoun, R, Zuberi, R, Funchal, R, Zumerle, G, Zuniga, J, Institut de Physique Nucléaire de Lyon (IPNL), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Laboratoire de l'Accélérateur Linéaire (LAL), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), Institut de Recherches Subatomiques (IReS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Cancéropôle du Grand Est-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Centre de Physique des Particules de Marseille (CPPM), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), DELPHI, Delphi, Collaboration, Abreu, P., Adam, W., Canale, Vincenzo, Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), and Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Aix Marseille Université (AMU)

Subjects
COLLISIONS, Particle physics, Nuclear and High Energy Physics, E+E ANNIHILATION, LUND MONTE-CARLO, 34-GEV, Electron–positron annihilation, Hadron, 01 natural sciences, JET FRAGMENTATION, PHYSICS, Nuclear physics, Pion, PION INTERFEROMETRY, MASS-ENERGY, COHERENCE, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], 010306 general physics, Physics, 010308 nuclear & particles physics, Detector, Bose–Einstein correlations, Charged particle, Reference sample, Physique des particules élémentaires, High Energy Physics::Experiment, Particle Physics - Experiment, Coherence (physics)
Abstract

Bose-Einstein correlation between pairs of like-sign charged particles produced in e+e- annihilations near the Z0 peak have been studied using data taken with the DELPHI detector at LEP. An enhancement is found in the production of pairs of identical pions of similar moments, with respect to a reference sample. Under the hypothesis that the pions are emitted by a spherically symmetrical source with gaussian density, the data indicate a radius of the source of r = 0.62±0.04(stat.)±0.20(syst.) fm. The large systematic uncertainty reflects the sensitivity of r to the choice of the reference sample, 0, info:eu-repo/semantics/published

Published
2016

24. Acute myeloid leukemia patients’ clinical response to idasanutlin (RG7388) is associated with pre-treatment MDM2 protein expression in leukemic blasts

Author

Michael Dickinson, Gong Chen, W. Venus So, Lin-Chi Chen, Lori Jukofsky, Giovanni Martinelli, Je-Hwan Lee, Karen W.L. Yee, Mark Drummond, Ruediger Rueger, Bernhard Reis, Sarit Assouline, Steven Blotner, Margaret Kasner, Sung-Soo Yoon, Michel Theron, Gwen Nichols, Steven A. Middleton, William E. Pierceall, Kevin R. Kelly, Norbert Vey, Karen Seiter, Hua Zhong, Maneja Hashemyan, Reis, Bernhard, Jukofsky, Lori, Chen, Gong, Martinelli, Giovanni, Zhong, Hua, Venus So, W., Dickinson, Michael J., Drummond, Mark, Assouline, Sarit, Hashemyan, Maneja, Theron, Michel, Blotner, Steven, Lee, Je-Hwan, Kasner, Margaret, Yoon, Sung-Soo, Rueger, Ruediger, Seiter, Karen, Middleton, Steven A., Kelly, Kevin R., Vey, Norbert, Yee, Karen, Nichols, Gwen, Chen, Lin-Chi, and Pierceall, William E

Subjects
0301 basic medicine, Oncology, medicine.medical_specialty, Myeloid, Idasanutlin, CD34, Bioinformatics, Flow cytometry, 03 medical and health sciences, 0302 clinical medicine, AML, Internal medicine, medicine, Online Only Articles, neoplasms, Complementary diagnostic, biology, medicine.diagnostic_test, business.industry, Myeloid leukemia, Hematology, medicine.disease, MDM2 antagonism, Clinical trial, Leukemia, 030104 developmental biology, medicine.anatomical_structure, 030220 oncology & carcinogenesis, biology.protein, Biomarker (medicine), Mdm2, business
Abstract

In translational research described, we investigated biomarker expression by flow cytometry for MDM2 antagonist clinical response association in relapsed/refractory AML patients treated with idasanutlin-based therapy (Clinicaltrials.gov identifier: {"type":"clinical-trial","attrs":{"text":"NCT01773408","term_id":"NCT01773408"}}NCT01773408). As MDM2 targets p53 for ubiquination/degradation, higher levels of MDM2 protein expression would be consistent with a mechanism of increased malignant potential by decreased p53 activity. We hypothesized that this comprises a mechanism for oncogene addiction whereby the cell is uniquely sensitive to enhanced p53 activity by MDM2 antagonism through reliance on this pathway. Flow cytometry assessment of MDM2 protein expression in leukemic blasts (CD45dim or CD45dim/CD34+) is established in both a proof of principle set comprising initial trial segments, and then validated in a trial segment comprising patients treated with a clinically optimized idasanutlin formulation. Upon TP53 WT patient subset analyses, we show that flow cytometry assessments add predictive/prognostic value to negative predictive value conferred by TP53 mutational status. Additionally, we propose that such continuous variable measurements are consistent with FDA guidance for the development of complementary diagnostics. These flow cytometry assessments will be monitored in upcoming AML clinical trials for predictive diagnostic potential.

Published
2016

25. PROLIX: Rapid Mining of Protein–Ligand Interactions in Large Crystal Structure Databases

Author

Martin Weisel, Hans-Marcus Bitter, François Diederich, Rama K. Kondru, and W. Venus So

Subjects
Structure (mathematical logic), Drug discovery, Computer science, General Chemical Engineering, Fingerprint (computing), Information Storage and Retrieval, Proteins, General Chemistry, Computational biology, computer.file_format, Library and Information Sciences, Crystallography, X-Ray, Ligands, computer.software_genre, Protein Data Bank, Computer Science Applications, Drug Design, Drug Discovery, Data mining, computer, Protein Binding, Protein ligand
Abstract

A central problem in structure-based drug design is understanding protein-ligand interactions quantitatively and qualitatively. Several recent studies have highlighted from a qualitative perspective the nature of these interactions and their utility in drug discovery. However, a common limitation is a lack of adequate tools to mine these interactions comprehensively, since exhaustive searches of the protein data bank are time-consuming and difficult to perform. Consequently, fundamental questions remain unanswered: How unique or how common are the protein-ligand interactions observed in a given drug design project when compared to all complexed structures in the protein data bank? Which interaction patterns might explain the affinity of a tool compound toward unwanted targets? To answer these questions and to enable the systematic and comprehensive study of protein-ligand interactions, we introduce PROLIX (Protein Ligand Interaction Explorer), a tool that uses sophisticated fingerprint representations of protein-ligand interaction patterns for rapid data mining in large crystal structure databases. Our implementation strategy pursues a branch-and-bound technique that enables mining against thousands of complexes within a few seconds. Key elements of PROLIX include (i) an intuitive interface that enables users to formulate complex queries easily, (ii) exceptional speed for results retrieval, and (iii) a sophisticated results summarization. Herein we describe the algorithms developed to enable complex queries and fast retrieval of search results, as well as the intuitive aspects of the user interface and summarization viewer.

Published
2012

26. Deconvoluting complex patent Markush structures: A novel R-group numbering system

Author

Eric Scott, Wei Deng, W. Venus So, and Steven Joseph Berthel

Subjects
Structure (mathematical logic), Numbering system, Information retrieval, Hierarchy (mathematics), Renewable Energy, Sustainability and the Environment, business.industry, Computer science, Process Chemistry and Technology, Energy Engineering and Power Technology, Bioengineering, Library and Information Sciences, Field (computer science), Chemical space, Computer Science Applications, Visualization, Fuel Technology, Group (periodic table), Web application, business, Algorithm
Abstract

Nested R-groups are fundamental to patent Markush structure’s complexity, yet there have not been many recent publications in this field. We have developed a web application, called iMarVis, which provides chemists with the ability to navigate nested R-groups and study selected subsets of chemical space. In order to accurately capture R-group hierarchy, a new underlying numbering system was created. This numbering system also facilitates additional Markush structure analysis, including chemical space size calculation and enumeration. This article describes the new numbering system in detail and highlights the importance of understanding and depicting the R-group hierarchy.

Published
2012

27. A simple statistical test to infer the causality of target/phenotype correlation from small molecule phenotypic screens

Author

Shannon Hamilton, Xin Wei, Sung-Sau So, Qing Xiang, David Mark, W. Venus So, Ann F. Hoffman, and Yang He

Subjects
Statistics and Probability, Genetics, Cell-Free System, Cell Survival, Kinase, Drug discovery, Phenotypic screening, Cell, RNA, Biology, Biochemistry, Phenotype, Small molecule, High-Throughput Screening Assays, Computer Science Applications, Computational Mathematics, medicine.anatomical_structure, Computational Theory and Mathematics, Drug Discovery, False positive paradox, medicine, Humans, Protein Kinase Inhibitors, Molecular Biology, HeLa Cells
Abstract

Motivation: Cell-based phenotypic screens using small molecule inhibitors is an important technology for early drug discovery if the relationship between the disease-related cellular phenotype and inhibitors' biological targets can be determined. However, chemical inhibitors are rightfully believed to be less specific than perturbation by biological agents, such as antibody and small inference RNA. Therefore, it is often a challenge in small molecule phenotypic screening to infer the causality between a particular cellular phenotype and the inactivation of the responsible protein due to the off-target effect of the inhibitors. Results: In this article, we present a Roche in-house effort of screening 746 structurally diverse compounds for their cytotoxicity in HeLa cells measured by high content imaging technology. These compounds were also systematically profiled for the targeted and off-target binding affinity to a panel of 25 pre-selected protein kinases in a cell-free system. In an effort to search for the kinases whose activities are crucial for cell survival, we found that the simple association method such as the chi-square test yields a large number of false positives because the observed cytotoxic phenotype is likely to be the result of promiscuous action of less specific inhibitors instead of true consequence of inactivation of single relevant target. We demonstrated that a stratified categorical data analysis technique such as the Cochran–Mantel–Haenszel test is an effective approach to extract the meaningful biological connection from the spurious correlation resulted from confounding covariates. This study indicates that, empowered by appropriate statistical adjustment, small molecule inhibitor perturbation remains a powerful tool to pin down the relevant biomarker for drug safety and efficacy research. Contact: xin.wei@roche.com Supplementary information: Supplementary data are available at Bioinformatics online.

Published
2011

28. Intuitive Patent Markush Structure Visualization Tool for Medicinal Chemists

Author

Steven Joseph Berthel, Wei Deng, and W. Venus So

Subjects
Flexibility (engineering), Structure (mathematical logic), Information retrieval, Molecular Structure, Interface (Java), Computer science, Chemistry, Pharmaceutical, General Chemical Engineering, Nanotechnology, General Chemistry, Library and Information Sciences, Chemical space, Computer Science Applications, Visualization, Patents as Topic, Table (database), Zoom
Abstract

A Markush, or generic structure, is a widely used convention in chemical and pharmaceutical patents. The flexibility and complexity of this format, however, preclude an easy understanding and analysis of chemical space. In this paper, an application package called MarVis (Markush Visualization) is introduced to help chemists visualize Markush structures in chemical patents. MarVis can output a report with the Markush structure showing the query substructure and also an R-group table of all the possible R-groups described in the patent. MarVis also has a unique interactive interface that allows chemists to explore and zoom in the chemical space to find a subset of interest. SMILES, with minimal extensions, was used to facilitate a variety of patent Markush structure studies.

Published
2011

29. Phosphoinositide signalling links O-GlcNAc transferase to insulin resistance

Author

Xiaoyong Yang, Jerrold M. Olefsky, Robert H. Michell, Seth J. Field, W. Venus So, Joyce C. Havstad, Jeffrey E. Kudlow, Pat P. Ongusaha, Philip D.G. Miles, Ronald M. Evans, and Fengxue Zhang

Subjects
Male, medicine.medical_treatment, Protein degradation, Biology, N-Acetylglucosaminyltransferases, Phosphatidylinositols, Second Messenger Systems, O-Linked β-N-acetylglucosamine, Acetylglucosamine, Mice, Insulin resistance, Phosphatidylinositol Phosphates, Chlorocebus aethiops, medicine, Animals, Insulin, Phosphorylation, Nuclear protein, Multidisciplinary, Cell Membrane, Lipid Metabolism, medicine.disease, Protein Structure, Tertiary, Transport protein, Mice, Inbred C57BL, Protein Transport, Liver, Biochemistry, COS Cells, Insulin Resistance, Signal transduction
Abstract

Glucose flux through the hexosamine biosynthetic pathway leads to the post-translational modification of cytoplasmic and nuclear proteins by O-linked beta-N-acetylglucosamine (O-GlcNAc). This tandem system serves as a nutrient sensor to couple systemic metabolic status to cellular regulation of signal transduction, transcription, and protein degradation. Here we show that O-GlcNAc transferase (OGT) harbours a previously unrecognized type of phosphoinositide-binding domain. After induction with insulin, phosphatidylinositol 3,4,5-trisphosphate recruits OGT from the nucleus to the plasma membrane, where the enzyme catalyses dynamic modification of the insulin signalling pathway by O-GlcNAc. This results in the alteration in phosphorylation of key signalling molecules and the attenuation of insulin signal transduction. Hepatic overexpression of OGT impairs the expression of insulin-responsive genes and causes insulin resistance and dyslipidaemia. These findings identify a molecular mechanism by which nutritional cues regulate insulin signalling through O-GlcNAc, and underscore the contribution of this modification to the aetiology of insulin resistance and type 2 diabetes.

Published
2008

30. Spectrum ofALMS1variants and evaluation of genotype-phenotype correlations in Alström syndrome

Author

W Venus So, Sebastian Beck, Patsy M. Nishina, Mitchell Martin, Roberto Vettor, David I. Wilson, Rita Cerqueira, Gayle B. Collin, P. B. Tavares, Jan D. Marshall, Jürgen K. Naggert, Gabriella Milan, Tom Hearn, Weidong Zhang, Caterina Veronese, Elizabeth G. Hinman, and Pietro Maffei

Subjects
Male, Retinal degeneration, Genotype, Single-nucleotide polymorphism, Disease, Biology, Polymorphism, Single Nucleotide, Cohort Studies, Exon, Genetics, medicine, Humans, Abnormalities, Multiple, Allele, Genetics (clinical), DNA Primers, Base Sequence, Haplotype, Exons, Syndrome, medicine.disease, Pedigree, Phenotype, Haplotypes, Mutation, Female, Alström syndrome
Abstract

Alström syndrome is a monogenic recessive disorder featuring an array of clinical manifestations, with systemic fibrosis and multiple organ involvement, including retinal degeneration, hearing loss, childhood obesity, diabetes mellitus, dilated cardiomyopathy (DCM), urological dysfunction, and pulmonary, hepatic, and renal failure. We evaluated a large cohort of patients with Alström syndrome for mutations in the ALMS1 gene. In total, 79 disease-causing variants were identified, of which 55 are novel mutations. The variants are primarily clustered in exons 8, 10, and 16, although we also identified novel mutations in exons 12 and 18. Most alleles were identified only once (45/79), but several were found recurrently. Founder effects are likely in families of English and Turkish descent. We also identified 66 SNPs and assessed the functional significance of these variants based on the conserved identity of the protein and the severity of the resulting amino acid substitution. A genotype-phenotype association study examining 18 phenotypic parameters in a subset of 58 patients found suggestive associations between disease-causing variants in exon 16 and the onset of retinal degeneration before the age of 1 year (P = 0.02), the occurrence of urological dysfunction (P = 0.02), of DCM (P = 0.03), and of diabetes (P = 0.03). A significant association was found between alterations in exon 8 and absent, mild, or delayed renal disease (P = 0.0007). This data may have implications for the understanding of the molecular mechanisms of ALMS1 and provides the basis for further investigation of how alternative splicing of ALMS1 contributes to the severity of the disease.

Published
2007

31. The effect of insulin on expression of genes and biochemical pathways in human skeletal muscle

Author

W Venus So, Steven M. Willi, Michael V. Osier, Grier P. Page, Xiangqin Cui, Jim Rosinski, Xuxia Wu, Jelai Wang, Lidia Maianu, Helliner S. Hill, David B. Allison, W. Timothy Garvey, Mitchell Martin, and Brian Kent Rhees

Subjects
Adult, Male, Receptors, Steroid, medicine.medical_specialty, Endocrinology, Diabetes and Metabolism, medicine.medical_treatment, Receptors, Cytoplasmic and Nuclear, Endocrinology, Hyperinsulinism, Internal medicine, Nuclear Receptor Subfamily 4, Group A, Member 1, medicine, Humans, Insulin, Muscle, Skeletal, Transcription factor, Cells, Cultured, Oligonucleotide Array Sequence Analysis, Insulin-like growth factor 1 receptor, biology, Reverse Transcriptase Polymerase Chain Reaction, Gene Expression Profiling, GRB10, Skeletal muscle, Middle Aged, Glucose clamp technique, DNA-Binding Proteins, Insulin receptor, medicine.anatomical_structure, Gene Expression Regulation, Glucose Clamp Technique, biology.protein, Female, Signal transduction, Metabolic Networks and Pathways, Transcription Factors
Abstract

To study the insulin effects on gene expression in skeletal muscle, muscle biopsies were obtained from 20 insulin sensitive individuals before and after euglycemic hyperinsulinemic clamps. Using microarray analysis, we identified 779 insulin-responsive genes. Particularly noteworthy were effects on 70 transcription factors, and an extensive influence on genes involved in both protein synthesis and degradation. The genetic program in skeletal muscle also included effects on signal transduction, vesicular traffic and cytoskeletal function, and fuel metabolic pathways. Unexpected observations were the pervasive effects of insulin on genes involved in interacting pathways for polyamine and S-adenoslymethionine metabolism and genes involved in muscle development. We further confirmed that four insulin-responsive genes, RRAD, IGFBP5, INSIG1, and NGFI-B (NR4A1), were significantly up-regulated by insulin in cultured L6 skeletal muscle cells. Interestingly, insulin caused an accumulation of NGFI-B (NR4A1) protein in the nucleus where it functions as a transcription factor, without translocation to the cytoplasm to promote apoptosis. The role of NGFI-B (NR4A1) as a new potential mediator of insulin action highlights the need for greater understanding of nuclear transcription factors in insulin action.

Published
2007

32. Masses, lifetimes and production rates of Ξ− and Ξ¯+ at LEP 1

Author

Clara Troncon, Jose R. Fernandez, M. Bracko, Andre Sopczak, N. I. Zimin, D. Moraes, U. Kerzel, E. K. Johansson, A. Savoy-Navarro, A. Oyanguren, F. Hauler, Nuno Anjos, G. Valenti, Marc Winter, Nikolaos P. Mastroyiannopoulos, H. Wahlen, F. Pierre, Vincent Hedberg, Dimitrios Fassouliotis, T. Spassov, P. D. Johansson, L. Berntzon, U. Schwickerath, K. H. Becks, M. Tobin, U. Mjoernmark, S. O. Holmgren, Klaus Hamacher, Markus Elsing, P. B. Renton, Marco Battaglia, A. C. Taffard, J. Guy, Diego Rodriguez, G. Polok, Ernesto Migliore, M. Chapkin, Vaclav Vrba, R. Contri, B. Marechal, E. C. Katsoufis, Rosy Nicolaidou, Mattias Ellert, Peter Kluit, M. Begalli, Marta Calvi, P. Buschmann, A. Andreazza, Vincenzo Canale, Juan Fuster, S. Ask, E. Ben-Haim, A. N. Sisakian, A. Sadovsky, Maria Elena Pol, Corinne Berat, Olga Botner, S. Katsanevas, Rafael Marco, O.M. Kouznetsov, V. Lepeltier, J. D'Hondt, M. Nikolenko, M. Siebel, M. Pimenta, Carmen García, Paolo Checchia, S. Todorovova, Francisco Matorras, Tomasz Szumlak, D. Y. Bardin, W. Liebig, Tord Ekelof, P. Verdier, Ph. Gavillet, A. G. Olshevski, P. Goncalves, W. Da Silva, T. Tabarelli, L. Pieri, J. MacNaughton, Chiara Mariotti, D. Vilanova, Antonio Ferrer, Francesco Navarria, Pablo Tortosa, A. Zintchenko, H. Foeth, Nuno Filipe Castro, Daniel Jeans, V. Obraztsov, G. Vegni, S. U. Chung, F. Tegenfeldt, J. Van Eldik, F. Ledroit, Jacques Lemonne, Piotr Zalewski, Valerio Verzi, P. Antilogus, J. Rehn, Francesca Romana Cavallo, M. Zupan, A. Ballestrero, Filipe Veloso, A. Zalewska, K. Muenich, I. A. Tyapkin, Javier Cuevas, A. J. Washbrook, Daniel Wicke, A. De Angelis, P. Collins, V. Zhuravlov, Ugo Amaldi, Martijn Mulders, C. De Clercq, M. Kucharczyk, W. J. Murray, M. Blom, Oliver Passon, B. Golob, Marco Costa, Daniel Bloch, Salvador Carrillo Moreno, V.A. Uvarov, E. Piotto, Ahmimed Ouraou, W. De Boer, T. Allmendinger, Louis Lyons, D. Ryabtchikov, B. Buschbeck, G. Grosdidier, G. Wilkinson, S. Haug, P. Abreu, Martino Margoni, E. Fokitis, Andrea Perrotta, Borut Paul Kerševan, Patrick Jarry, F. Kapusta, R. Alemany-Fernandez, G. Leder, B. Åsman, Alessandra Romero, J. Hoffman, J. Dalmau, P. Bambade, L. Salmi, S. Maltezos, P.S.L. Booth, R. Monge, N. Benekos, D. Crennell, F. Mandl, R. Mc Nulty, J. N. Jackson, J. Rames, G. J. Barker, Richard Brenner, G. Smadja, Keith Hamilton, P. J. Holt, P. Kokkinias, A. Onofre, Josef Strauss, Phillip Allport, G. Della Ricca, B. Tome, P. Rebecchi, Th. D. Papadopoulou, K. Cieslik, Roberto Chierici, C. Martinez-Rivero, J. Drees, M. Hennecke, U. Mueller, P. Tyapkin, M. Espirito Santo, W. Venus, Demetrios Loukas, T. Alderweireld, Guillelmo Gomez-Ceballos, Evangelos Gazis, J. H. Wickens, B. Muryn, Marco Paganoni, Krzysztof Doroba, Paul Baillon, A. Petrolini, Sandra Amato, B. De Lotto, F. Fulda-Quenzer, M. Berggren, P. Niss, Alexander Lincoln Read, T. Podobnik, Tiziano Camporesi, G. Cosme, E. Graziani, G. Kernel, N. Pukhaeva, J. M. Brunet, C. Haag, N. Van Remortel, Chiara Meroni, J. Piedra, P. Bruckman, V. Perepelitsa, R. Sosnowski, J. E. Augustin, L. Vitale, José Salt, Georgios Fanourakis, Ph. Charpentier, Paolo Ronchese, F. Mazzucato, Jalal Abdallah, H. Herr, I. van Vulpen, M. Mazzucato, Petar Adzic, L. G. Tkatchev, C. Walck, R. Reinhardt, N. J. Kjaer, P. Lutz, Christine Kourkoumelis, Andrey Sokolov, M. Szeptycka, Marc Besancon, A. Di Simone, C. Weiser, Agnieszka Oblakowska-Mucha, P. Jonsson, Valeriy Pozdniakov, E. Anashkin, M. Rivero, G. Tristram, S. Tzamarias, O. Yushchenko, Danilo Zavrtanik, T. Albrecht, Fabio Cossutti, R. Gokieli, R. Sekulin, J. Montenegro, Igor Boyko, T. Lesiak, Maarten Boonekamp, A. Malek, J. H. Lopes, Ulrich Parzefall, Sofia Andringa, M. Stanitzki, L. De Paula, Luis Peralta, E. Brodet, T. Myklebust, L. Jungermann, T. Moa, A. Pullia, T. da Silva, P. V. Chliapnikov, R. Orava, Nicola Amapane, Petr Travnicek, Nathalie Besson, P. Roudeau, M. Moch, A. Markou, Alberto Benvenuti, Marek Szczekowski, Fabrizio Ferro, Tiziano Rovelli, Michal Bluj, K. Grzelak, G. Borisov, Allan Hallgren, L. Leinonen, Antonio Baroncelli, H. Palka, K. Osterberg, G. Eigen, B. Bouquet, M. Trochimczuk, J. W. Lamsa, M. Bonesini, J. M. Lopez, Z. Krumstein, S. Paiano, A. De Min, Luc Pape, M. Witek, U. Flagmeyer, B. Stugu, N. De Maria, M. Gandelman, Anna Lipniacka, C. Joram, W. A. Mitaroff, F. Richard, C. Matteuzzi, G. Myatt, M. Nassiakou, Klaus Moenig, M. A. Houlden, Rupert Leitner, V. Ruhlmann-Kleider, J-C. Marin, Wolfgang Adam, J. P. Palacios, Y. Arnoud, L. Di Ciaccio, A. Tonazzo, M. Feindt, Göran Jarlskog, L. Mundim, W. D. Apel, R. Barbier, F. Carena, Jesus Marco, Dietrich Liko, Paolo Morettini, Krzysztof Nawrocki, Daniel Treille, P. Van Dam, J. Ridky, A. Behrmann, Themistocles Bowcock, Barry King, C. Parkes, Jiri Masik, J. Timmermans, Oxana Smirnova, M. L. Turluer, D. Reid, Andre Augustinus, D. Bertrand, Jiri Chudoba, V. Poireau, Christian Sander, A. Passeri, M. Baubillier, Achille Stocchi, and F. Parodi

Subjects
Physics, Nuclear physics, Nuclear and High Energy Physics, 010308 nuclear & particles physics, Electron–positron annihilation, 0103 physical sciences, Production (computer science), 010306 general physics, 01 natural sciences, Bar (unit), Xi baryon
Abstract

Measurements of the Xi(-) and (Xi) over bar (+) masses, mass differences, lifetimes and lifetime differences are presented. The (Xi) over bar (+) sample used is much larger than those used previously for such measurements. In addition, the S production rates in Z -> b (b) over bar and Z -> q (q) over bar events are compared and the position xi* of the maximum of the distribution in Z -> q (q) over bar events is measured.

Published
2006

33. Search for $B^0_s-\overline{B^0_s}$ oscillations and a measurement of $B^0_d-\overline{B^0_d}$ oscillations using events with an inclusively reconstructed vertex

Author

P. D. Johansson, Patrick Jarry, L. Berntzon, A. Van Lysebetten, Tiziano Rovelli, Michal Bluj, G. Borisov, T. Tabarelli, Klaus Hamacher, Wolfgang Adam, S. Todorovova, T. Allmendinger, G. Wilkinson, G. Polok, Ernesto Migliore, M. Hennecke, Tomasz Szumlak, Paul Baillon, Alexander Lincoln Read, M. Szeptycka, Marc Besancon, Klaus Moenig, Fabrizio Parodi, Th D. Papadopoulou, Antonio Ferrer, M. A. Houlden, Ugo Amaldi, W. De Boer, J. P. Palacios, M. Baubillier, Achille Stocchi, B. Tome, P. Antilogus, J. Rehn, G. Valenti, Roberto Chierici, V. Canale, J. M. Lopez, H. Foeth, Ulrich Parzefall, Jørgen Beck Hansen, C. Martinez-Rivero, U. Mueller, M. Feindt, Luc Pape, J. Van Eldik, O.M. Kouznetsov, V. Lepeltier, M. Siebel, F. Ledroit, Jacques Lemonne, A. Savoy-Navarro, N. Castro, W. Da Silva, Z. Krumstein, Martijn Mulders, Paulo J. S. Gonçalves, P. Van Dam, J-C. Marin, F. Pierre, Martino Margoni, N. Anjos, Evangelos Gazis, M. Mazzucato, Vincent Hedberg, Marco Costa, Göran Jarlskog, E. Fokitis, Richard Brenner, A. J. Washbrook, Borut Paul Kerševan, Rupert Leitner, F. Richard, C. Matteuzzi, P. Bruckman, Agnieszka Oblakowska-Mucha, T. Spassov, G. Kernel, Paolo Checchia, Ph. Gavillet, B. Crawley, Marcin Kucharczyk, L. Mundim, M. Berggren, S. Paiano, A. De Min, J. D'Hondt, M. Nikolenko, E. Piotto, G. Grosdidier, V. Perepelitsa, O. Yushchenko, R. Sekulin, A. Behrmann, M. Nassiakou, S. Tzamarias, D. Bertrand, A. De Angelis, P. Collins, Andrea Perrotta, J. MacNaughton, Alessandra Romero, Themistocles Bowcock, W. D. Apel, J. Guy, Dimitrios Fassouliotis, Mattias Ellert, Jiri Chudoba, S. Haug, M. Stanitzki, M. Begalli, V. Ruhlmann-Kleider, S. U. Chung, U. Flagmeyer, Barry King, N. De Maria, Nikolaos P. Mastroyiannopoulos, E. Brodet, Keith Hamilton, T. Moa, Josef Strauss, B. Golob, Daniel Bloch, T. Myklebust, F. Carena, H. Wahlen, Luis Peralta, F. Kapusta, J. H. Lopes, J. Timmermans, W. Liebig, Tord Ekelof, M. Espirito Santo, S. Moreno, W. Venus, P. V. Chliapnikov, P. Verdier, K. Hultqvist, Rafael Marco, A. Pullia, Anna Lipniacka, Valeriy Pozdniakov, R. Contri, T. Alderweireld, A. Ballestrero, J. Hoffman, K. Muenich, Winfried Mitaroff, P. Abreu, A. Markou, J. Dalmau, Ahmimed Ouraou, T. Albrecht, F. Hauler, Per Jönsson, G. Vegni, U. Schwickerath, K. H. Becks, M. Rivero, M. Blom, Louis Lyons, M. A. Winter, Gareth J. Barker, S. O. Holmgren, P. Bambade, A. Petrolini, D. Vilanova, C. Haag, N. Van Remortel, A. Passeri, F. Veloso, A. N. Sisakian, B. De Lotto, Nicola Amapane, R. Mc Nulty, Nathalie Besson, A. Sadovsky, R. Sosnowski, P.S.L. Booth, M. Chapkin, Oxana Smirnova, M. Zupan, Jesus Marco, Marek Szczekowski, I. van Vulpen, A. Malek, Vaclav Vrba, E. I. Rosenberg, A. Onofre, Y. Arnoud, L. Jungermann, Demetrios Loukas, C. Joram, A. Sokolov, H. Herr, L. G. Tkatchev, Petr Travnicek, Oliver Passon, J. Drees, Paolo Morettini, M. L. Turluer, P. Buschmann, B. Muryn, D. Reid, N. Pukhaeva, Piotr Zalewski, Manolis Dris, M. Moch, L. Ramler, A. Andreazza, V. Verzi, K. Grzelak, A. M. Segar, K. Osterberg, Dietrich Liko, I. A. Tyapkin, Allan Hallgren, Krzysztof Nawrocki, Antonio Baroncelli, Stavros Maltezos, R. Barbier, Javier Cuevas, Daniel Wicke, P. Poropat, Alberto Benvenuti, Fabrizio Ferro, A. Di Simone, J. Piedra, P. Tyapkin, D. Ryabtchikov, Francisco Matorras, Andre Augustinus, Daniel Treille, Paolo Ronchese, A. Kiiskinen, N. J. Kjaer, L. Salmi, T. Geralis, V.A. Uvarov, J. Ridky, C. Parkes, R. Monge, E. Anashkin, Nektarios Benekos, Juan Fuster, A. Tomaradze, G. Tristram, Sandra Amato, T. Podobnik, Phillip Allport, E. C. Katsoufis, Maarten Boonekamp, Christine Kourkoumelis, L. De Paula, G. Della Ricca, P. Roudeau, L. Leinonen, K. Cieslik, L. Pieri, A. Tonazzo, A. G. Olshevski, P. Rebecchi, H. Palka, J. W. Lamsa, M. Trochimczuk, M. Bonesini, M. Witek, A. Zalewska, Guillelmo Gomez-Ceballos, W. T. Meyer, G. Myatt, Daniel Jeans, V. Obraztsov, F. Verbeure, J. N. Jackson, José Salt, B. Stugu, M. Gandelman, F. Fulda-Quenzer, F. Tegenfeldt, J. Rames, P. Kokkinias, Ph. Charpentier, Tiziano Camporesi, E. Graziani, G. Cosme, J. M. Brunet, Maria Elena Pol, G. Smadja, S. Katsanevas, Danilo Zavrtanik, R. Gokieli, J. Fernandez, D. Y. Bardin, Markus Elsing, Sofia Andringa, M. Tobin, Petar Adzic, R. Reinhardt, Corinne Berat, Olga Botner, C. Weiser, Jalal Abdallah, Carmen García, J. Masik, Chiara Mariotti, T. da Silva, R. Orava, V. Poireau, Francesca Romana Cavallo, G. Eigen, B. Bouquet, C. De Clercq, W. J. Murray, U. Mjoernmark, Diego Rodriguez, L. Di Ciaccio, S. Ask, M. Pimenta, Francesco Navarria, Pablo Tortosa, A. Zintchenko, D. Moraes, L. Bugge, P. B. Renton, Marco Battaglia, A. C. Taffard, B. Marechal, Rosy Nicolaidou, Marta Calvi, E. K. Johansson, A. Oyanguren, J. E. Augustin, R. Alemany-Fernandez, G. Leder, B. Åsman, Clara Troncon, D. Crennell, M. Bracko, Andre Sopczak, F. Mandl, N. I. Zimin, P. J. Holt, E. Ben-Haim, Krzysztof Doroba, Chiara Meroni, Peter Kluit, F. Mazzucato, J. H. Wickens, Marco Paganoni, L. Vitale, Georgios Fanourakis, P. Lutz, Fabio Cossutti, J. Montenegro, Igor Boyko, T. Lesiak, and DELPHI Collaboration

Subjects
Physics, Particle physics, Physics and Astronomy (miscellaneous), 010308 nuclear & particles physics, Electron–positron annihilation, Hadron, 01 natural sciences, Vertex (geometry), Nuclear physics, 0103 physical sciences, Transverse momentum, High Energy Physics::Experiment, B meson, 010306 general physics, Engineering (miscellaneous), Lepton
Abstract

Neutral B meson oscillations in the B-s(0) - , and B-d(0) - systems were studied using a sample of about 4.0 million hadronic Z decays recorded by the DELPHI detector between 1992 and 2000. Events with a high transverse momentum lepton were removed and a sample of 770 k events with an inclusively reconstructed vertex was selected. The mass difference between the two physical states in the B-d(0) - system was measured to be: Deltam(d) = (0.531 +/- 0.025(stat.) +/- 0.007(syst.))ps(-1). The following limit on the width difference of these states was also obtained: DeltaGamma(Bd)/Gamma(Bd) oscillations was found, a limit on the mass difference of the two physical states was given:, Deltam(s) > 5.0 ps(-1) at 95% CL. The corresponding sensitivity of this analysis is equal to 6.6 ps(-1).

Published
2003

34. Measurements of CP-conserving trilinear gauge boson couplings WWV (V≡γ,Z) in e+e− collisions at LEP2

Author

J. ABDALLAH, P. ABREU, W. ADAM, P. ADZIC, T. ALBRECHT, R. ALEMANY FERNANDEZ, T. ALLMENDINGER, P. P. ALLPORT, U. AMALDI, N. AMAPANE, S. AMATO, E. ANASHKIN, A. ANDREAZZA, S. ANDRINGA, N. ANJOS, P. ANTILOGUS, W. D. APEL, Y. ARNOUD, S. ASK, B. ASMAN, J. E. AUGUSTIN, A. AUGUSTINUS, P. BAILLON, A. BALLESTRERO, P. BAMBADE, R. BARBIER, D. BARDIN, G. J. BARKER, A. BARONCELLI, M. BATTAGLIA, M. BAUBILLIER, K. H. BECKS, M. BEGALLI, A. BEHRMANN, E. BEN HAIM, N. BENEKOS, A. BENVENUTI, C. BERAT, M. BERGGREN, D. BERTRAND, M. BESANCON, N. BESSON, D. BLOCH, M. BLOM, M. BLUJ, M. BONESINI, M. BOONEKAMP, P. S. L. BOOTH, G. BORISOV, O. BOTNER, B. BOUQUET, T. J. V. BOWCOCK, I. BOYKO, M. BRACKO, R. BRENNER, E. BRODET, P. BRUCKMAN, J. M. BRUNET, B. BUSCHBECK, P. BUSCHMANN, M. CALVI, T. CAMPORESI, V. CANALE, F. CARENA, N. CASTRO, F. CAVALLO, M. CHAPKIN, P.H. CHARPENTIER, P. CHECCHIA, R. CHIERICI, P. CHLIAPNIKOV, J. CHUDOBA, S. U. CHUNG, K. CIESLIK, P. COLLINS, R. CONTRI, G. COSME, F. COSSUTTI, M. J. COSTA, D. CRENNELL, J. CUEVAS, J. D’HONDT, T. DA SILVA, W. DA SILVA, G. DELLA RICCA, A. DE ANGELIS, W. DE BOER, C. DE CLERCQ, B. DE LOTTO, N. DE MARIA, A. DE MIN, L. DE PAULA, L. DI CIACCIO, A. DI SIMONE, K. DOROBA, J. DREES, G. EIGEN, T. EKELOF, M. ELLERT, M. ELSING, M. C. ESPIRITO SANTO, G. FANOURAKIS, D. FASSOULIOTIS, M. FEINDT, J. FERNANDEZ, A. FERRER, F. FERRO, U. FLAGMEYER, H. FOETH, E. FOKITIS, F. FULDA QUENZER, J. FUSTER, M. GANDELMAN, C. GARCIA, P.H. GAVILLET, E. GAZIS, R. GOKIELI, B. GOLOB, G. GOMEZ CEBALLOS, P. GONCALVES, E. GRAZIANI, G. GROSDIDIER, K. GRZELAK, J. GUY, C. HAAG, A. HALLGREN, K. HAMACHER, K. HAMILTON, S. HAUG, F. HAULER, V. HEDBERG, M. HENNECKE, J. HOFFMAN, S. O. HOLMGREN, P. J. HOLT, M. A. HOULDEN, J. N. JACKSON, G. JARLSKOG, P. JARRY, D. JEANS, E. K. JOHANSSON, P. JONSSON, C. JORAM, L. JUNGERMANN, F. KAPUSTA, S. KATSANEVAS, E. KATSOUFIS, G. KERNEL, B. P. KERSEVAN, U. KERZEL, B. T. KING, N. J. KJAER, P. KLUIT, P. KOKKINIAS, V. KOSTIOUKHINE, C. KOURKOUMELIS, O. KOUZNETSOV, Z. KRUMSTEIN, M. KUCHARCZYK, J. LAMSA, G. LEDER, F. LEDROIT, L. LEINONEN, R. LEITNER, J. LEMONNE, V. LEPELTIER, T. LESIAK, J. LIBBY, W. LIEBIG, D. LIKO, A. LIPNIACKA, J. H. LOPES, J. M. LOPEZ, D. LOUKAS, P. LUTZ, L. LYONS, J. MACNAUGHTON, A. MALEK, S. MALTEZOS, F. MANDL, J. MARCO, R. MARCO, B. MARECHAL, M. MARGONI, J. C. MARIN, C. MARIOTTI, A. MARKOU, C. MARTINEZ RIVERO, J. MASIK, N. MASTROYIANNOPOULOS, F. MATORRAS, C. MATTEUZZI, F. MAZZUCATO, M. MAZZUCATO, R. MC NULTY, C. MERONI, E. MIGLIORE, W. MITAROFF, U. MJOERNMARK, T. MOA, M. MOCH, K. MOENIG, R. MONGE, J. MONTENEGRO, D. MORAES, S. MORENO, P. MORETTINI, U. MUELLER, K. MUENICH, M. MULDERS, L. MUNDIM, W. MURRAY, B. MURYN, G. MYATT, T. MYKLEBUST, M. NASSIAKOU, K. NAWROCKI, S. NEMECEK, R. NICOLAIDOU, M. NIKOLENKO, A. OBLAKOWSKA MUCHA, V. OBRAZTSOV, A. OLSHEVSKI, A. ONOFRE, R. ORAVA, K. OSTERBERG, A. OURAOU, A. OYANGUREN, M. PAGANONI, J. P. PALACIOS, H. PALKA, T.H. D. PAPADOPOULOU, L. PAPE, C. PARKES, F. PARODI, U. PARZEFALL, A. PASSERI, O. PASSON, L. PERALTA, V. PEREPELITSA, A. PETROLINI, J. PIEDRA, L. PIERI, F. PIERRE, M. PIMENTA, E. PIOTTO, T. PODOBNIK, V. POIREAU, M. E. POL, G. POLOK, V. POZDNIAKOV, N. PUKHAEVA, A. PULLIA, D. RADOJICIC, P. REBECCHI, J. REHN, D. REID, R. REINHARDT, P. RENTON, F. RICHARD, J. RIDKY, M. RIVERO, D. RODRIGUEZ, A. ROMERO, P. RONCHESE, P. ROUDEAU, V. RUHLMANN KLEIDER, D. RYABTCHIKOV, A. SADOVSKY, L. SALMI, J. SALT, C. SANDER, A. SAVOY NAVARRO, U. SCHWICKERATH, R. SEKULIN, M. SIEBEL, A. SISAKIAN, G. SMADJA, O. SMIRNOVA, A. SOKOLOV, A. SOPCZAK, R. SOSNOWSKI, T. SPASSOV, M. STANITZKI, A. STOCCHI, J. STRAUSS, B. STUGU, M. SZCZEKOWSKI, M. SZEPTYCKA, T. SZUMLAK, T. TABARELLI, F. TEGENFELDT, F. TERRANOVA, J. TIMMERMANS, L. TKATCHEV, M. TOBIN, S. TODOROVOVA, B. TOME, A. TONAZZO, P. TORTOSA, P. TRAVNICEK, D. TREILLE, G. TRISTRAM, M. TROCHIMCZUK, C. TRONCON, M. L. TURLUER, I. A. TYAPKIN, P. TYAPKIN, S. TZAMARIAS, V. UVAROV, G. VALENTI, P. VAN DAM, J. VAN ELDIK, A. VAN LYSEBETTEN, N. VAN REMORTEL, I. VAN VULPEN, G. VEGNI, F. VELOSO, W. VENUS, P. VERDIER, V. VERZI, D. VILANOVA, L. VITALE, V. VRBA, H. WAHLEN, A. J. WASHBROOK, C. WEISER, D. WICKE, J. WICKENS, G. WILKINSON, M. WINTER, M. WITEK, O. YUSHCHENKO, A. ZALEWSKA, P. ZALEWSKI, D. ZAVRTANIK, V. ZHURAVLOV, N. I. ZIMIN, A. ZINTCHENKO, M. ZUPAN, NAVARRIA, FRANCESCO LUIGI, PAIANO, SIMONE, PERROTTA, ANDREA, ROVELLI, TIZIANO, J. ABDALLAH, P. ABREU, W. ADAM, P. ADZIC, T. ALBRECHT, R. ALEMANY-FERNANDEZ, T. ALLMENDINGER, P. P. ALLPORT, U. AMALDI, N. AMAPANE, S. AMATO, E. ANASHKIN, A. ANDREAZZA, S. ANDRINGA, N. ANJOS, P. ANTILOGUS, W-D. APEL, Y. ARNOUD, S. ASK, B. ASMAN, J. E. AUGUSTIN, A. AUGUSTINUS, P. BAILLON, A. BALLESTRERO, P. BAMBADE, R. BARBIER, D. BARDIN, G. J. BARKER, A. BARONCELLI, M. BATTAGLIA, M. BAUBILLIER, K-H. BECKS, M. BEGALLI, A. BEHRMANN, E. BEN-HAIM, N. BENEKOS, A. BENVENUTI, C. BERAT, M. BERGGREN, D. BERTRAND, M. BESANCON, N. BESSON, D. BLOCH, M. BLOM, M. BLUJ, M. BONESINI, M. BOONEKAMP, P. S. L. BOOTH, G. BORISOV, O. BOTNER, B. BOUQUET, T. J. V. BOWCOCK, I. BOYKO, M. BRACKO, R. BRENNER, E. BRODET, P. BRUCKMAN, J. M. BRUNET, B. BUSCHBECK, P. BUSCHMANN, M. CALVI, T. CAMPORESI, V. CANALE, F. CARENA, N. CASTRO, F. CAVALLO, M. CHAPKIN, PH. CHARPENTIER, P. CHECCHIA, R. CHIERICI, P. CHLIAPNIKOV, J. CHUDOBA, S. U. CHUNG, K. CIESLIK, P. COLLINS, R. CONTRI, G. COSME, F. COSSUTTI, M. J. COSTA, D. CRENNELL, J. CUEVAS, J. D’HONDT, T. DA SILVA, W. DA SILVA, G. DELLA RICCA, A. DE ANGELIS, W. DE BOER, C. DE CLERCQ, B. DE LOTTO, N. DE MARIA, A. DE MIN, L. DE PAULA, L. DI CIACCIO, A. DI SIMONE, K. DOROBA, J. DREES, G. EIGEN, T. EKELOF, M. ELLERT, M. ELSING, M. C. ESPIRITO SANTO, G. FANOURAKIS, D. FASSOULIOTIS, M. FEINDT, J. FERNANDEZ, A. FERRER, F. FERRO, U. FLAGMEYER, H. FOETH, E. FOKITIS, F. FULDA-QUENZER, J. FUSTER, M. GANDELMAN, C. GARCIA, PH. GAVILLET, E. GAZIS, R. GOKIELI, B. GOLOB, G. GOMEZ-CEBALLOS, P. GONCALVES, E. GRAZIANI, G. GROSDIDIER, K. GRZELAK, J. GUY, C. HAAG, A. HALLGREN, K. HAMACHER, K. HAMILTON, S. HAUG, F. HAULER, V. HEDBERG, M. HENNECKE, J. HOFFMAN, S-O. HOLMGREN, P. J. HOLT, M. A. HOULDEN, J. N. JACKSON, G. JARLSKOG, P. JARRY, D. JEANS, E. K. JOHANSSON, P. JONSSON, C. JORAM, L. JUNGERMANN, F. KAPUSTA, S. KATSANEVAS, E. KATSOUFIS, G. KERNEL, B. P. KERSEVAN, U. KERZEL, B. T. KING, N. J. KJAER, P. KLUIT, P. KOKKINIAS, V. KOSTIOUKHINE, C. KOURKOUMELIS, O. KOUZNETSOV, Z. KRUMSTEIN, M. KUCHARCZYK, J. LAMSA, G. LEDER, F. LEDROIT, L. LEINONEN, R. LEITNER, J. LEMONNE, V. LEPELTIER, T. LESIAK, J. LIBBY, W. LIEBIG, D. LIKO, A. LIPNIACKA, J. H. LOPES, J. M. LOPEZ, D. LOUKAS, P. LUTZ, L. LYONS, J. MACNAUGHTON, A. MALEK, S. MALTEZOS, F. MANDL, J. MARCO, R. MARCO, B. MARECHAL, M. MARGONI, J-C. MARIN, C. MARIOTTI, A. MARKOU, C. MARTINEZ-RIVERO, J. MASIK, N. MASTROYIANNOPOULOS, F. MATORRAS, C. MATTEUZZI, F. MAZZUCATO, M. MAZZUCATO, R. MC NULTY, C. MERONI, E. MIGLIORE, W. MITAROFF, U. MJOERNMARK, T. MOA, M. MOCH, K. MOENIG, R. MONGE, J. MONTENEGRO, D. MORAES, S. MORENO, P. MORETTINI, U. MUELLER, K. MUENICH, M. MULDERS, L. MUNDIM, W. MURRAY, B. MURYN, G. MYATT, T. MYKLEBUST, M. NASSIAKOU, F. NAVARRIA, K. NAWROCKI, S. NEMECEK, R. NICOLAIDOU, M. NIKOLENKO, A. OBLAKOWSKA-MUCHA, V. OBRAZTSOV, A. OLSHEVSKI, A. ONOFRE, R. ORAVA, K. OSTERBERG, A. OURAOU, A. OYANGUREN, M. PAGANONI, S. PAIANO, J. P. PALACIOS, H. PALKA, TH. D. PAPADOPOULOU, L. PAPE, C. PARKES, F. PARODI, U. PARZEFALL, A. PASSERI, O. PASSON, L. PERALTA, V. PEREPELITSA, A. PERROTTA, A. PETROLINI, J. PIEDRA, L. PIERI, F. PIERRE, M. PIMENTA, E. PIOTTO, T. PODOBNIK, V. POIREAU, M. E. POL, G. POLOK, V. POZDNIAKOV, N. PUKHAEVA, A. PULLIA, D. RADOJICIC, P. REBECCHI, J. REHN, D. REID, R. REINHARDT, P. RENTON, F. RICHARD, J. RIDKY, M. RIVERO, D. RODRIGUEZ, A. ROMERO, P. RONCHESE, P. ROUDEAU, T. ROVELLI, V. RUHLMANN-KLEIDER, D. RYABTCHIKOV, A. SADOVSKY, L. SALMI, J. SALT, C. SANDER, A. SAVOY-NAVARRO, U. SCHWICKERATH, R. SEKULIN, M. SIEBEL, A. SISAKIAN, G. SMADJA, O. SMIRNOVA, A. SOKOLOV, A. SOPCZAK, R. SOSNOWSKI, T. SPASSOV, M. STANITZKI, A. STOCCHI, J. STRAUSS, B. STUGU, M. SZCZEKOWSKI, M. SZEPTYCKA, T. SZUMLAK, T. TABARELLI, F. TEGENFELDT, F. TERRANOVA, J. TIMMERMANS, L. TKATCHEV, M. TOBIN, S. TODOROVOVA, B. TOME, A. TONAZZO, P. TORTOSA, P. TRAVNICEK, D. TREILLE, G. TRISTRAM, M. TROCHIMCZUK, C. TRONCON, M-L. TURLUER, I. A. TYAPKIN, P. TYAPKIN, S. TZAMARIAS, V. UVAROV, G. VALENTI, P. VAN DAM, J. VAN ELDIK, A. VAN LYSEBETTEN, N. VAN REMORTEL, I. VAN VULPEN, G. VEGNI, F. VELOSO, W. VENUS, P. VERDIER, V. VERZI, D. VILANOVA, L. VITALE, V. VRBA, H. WAHLEN, A. J. WASHBROOK, C. WEISER, D. WICKE, J. WICKENS, G. WILKINSON, M. WINTER, M. WITEK, O. YUSHCHENKO, A. ZALEWSKA, P. ZALEWSKI, D. ZAVRTANIK, V. ZHURAVLOV, N. I. ZIMIN, A. ZINTCHENKO, and M. ZUPAN

Subjects
TRILINEAR COUPLINGS, E+E, W-BOSON, LEP, DELPHI
Abstract

The data taken by DELPHI at centre-of-mass energies between 189 and 209 GeV are used to place limits on the CP-conserving trilinear gauge boson couplings Dg_1^Z, λ_γ and Dκ_γ associated to W+W− and single W production at LEP2. Using data from the jjlν, jjjj, jjX and lX final states, where j , l and X represent a jet, a lepton and missing four-momentum, respectively, the following limits are set on the couplings when one parameter is allowed to vary and the others are set to their Standard Model values of zero: Dg_1^Z = −0.025+0.033−0.030, λ_γ = 0.002+0.035−0.035 and Dκ_γ = 0.024+0.077−0.081. Results are also presented when two or three parameters are allowed to vary. All observations are consistent with the predictions of the Standard Model and supersede the previous results on these gauge coupling parameters published by DELPHI.

Published
2010

35. Correlations between polarisation states of W particles in the reaction e− e+ → W− W+ at LEP2 energies 189–209 GeV

Author

J. ABDALLAH, P. ABREU, W. ADAM, P. ADZIC, T. ALBRECHT, R. ALEMANY FERNANDEZ, T. ALLMENDINGER, P. P. ALLPORT, U. AMALDI, N. AMAPANE, S. AMATO, E. ANASHKIN, A. ANDREAZZA, S. ANDRINGA, N. ANJOS, P. ANTILOGUS, W. D. APEL, Y. ARNOUD, S. ASK, B. ASMAN, J. E. AUGUSTIN, A. AUGUSTINUS, P. BAILLON, A. BALLESTRERO, P. BAMBADE, R. BARBIER, D. BARDIN, G. J. BARKER, A. BARONCELLI, M. BATTAGLIA, M. BAUBILLIER, K. H. BECKS, M. BEGALLI, A. BEHRMANN, E. BEN HAIM, N. BENEKOS, A. BENVENUTI, C. BERAT, M. BERGGREN, D. BERTRAND, M. BESANCON, N. BESSON, D. BLOCH, M. BLOM, M. BLUJ, M. BONESINI, M. BOONEKAMP, P. S. L. BOOTH, G. BORISOV, O. BOTNER, B. BOUQUET, T. J. V. BOWCOCK, I. BOYKO, M. BRACKO, R. BRENNER, E. BRODET, P. BRUCKMAN, J. M. BRUNET, B. BUSCHBECK, P. BUSCHMANN, M. CALVI, T. CAMPORESI, V. CANALE, F. CARENA, N. CASTRO, F. CAVALLO, M. CHAPKIN, P.H. CHARPENTIER, P. CHECCHIA, R. CHIERICI, P. CHLIAPNIKOV, J. CHUDOBA, S. U. CHUNG, K. CIESLIK, P. COLLINS, R. CONTRI, G. COSME, F. COSSUTTI, M. J. COSTA, D. CRENNELL, J. CUEVAS, J. D’HONDT, T. DA SILVA, W. DA SILVA, G. DELLA RICCA, A. DE ANGELIS, W. DE BOER, C. DE CLERCQ, B. DE LOTTO, N. DE MARIA, A. DE MIN, L. DE PAULA, L. DI CIACCIO, A. DI SIMONE, K. DOROBA, J. DREES, G. EIGEN, T. EKELOF, M. ELLERT, M. ELSING, M. C. ESPIRITO SANTO, G. FANOURAKIS, D. FASSOULIOTIS, M. FEINDT, J. FERNANDEZ, A. FERRER, F. FERRO, U. FLAGMEYER, H. FOETH, E. FOKITIS, F. FULDA QUENZER, J. FUSTER, M. GANDELMAN, C. GARCIA, P.H. GAVILLET, E. GAZIS, R. GOKIELI, B. GOLOB, G. GOMEZ CEBALLOS, P. GONCALVES, E. GRAZIANI, G. GROSDIDIER, K. GRZELAK, J. GUY, C. HAAG, A. HALLGREN, K. HAMACHER, K. HAMILTON, S. HAUG, F. HAULER, V. HEDBERG, M. HENNECKE, J. HOFFMAN, S. O. HOLMGREN, P. J. HOLT, M. A. HOULDEN, J. N. JACKSON, G. JARLSKOG, P. JARRY, D. JEANS, E. K. JOHANSSON, P. JONSSON, C. JORAM, L. JUNGERMANN, F. KAPUSTA, S. KATSANEVAS, E. KATSOUFIS, G. KERNEL, B. P. KERSEVAN, U. KERZEL, B. T. KING, N. J. KJAER, P. KLUIT, P. KOKKINIAS, C. KOURKOUMELIS, O. KOUZNETSOV, Z. KRUMSTEIN, M. KUCHARCZYK, J. LAMSA, G. LEDER, F. LEDROIT, L. LEINONEN, R. LEITNER, J. LEMONNE, V. LEPELTIER, T. LESIAK, W. LIEBIG, D. LIKO, A. LIPNIACKA, J. H. LOPES, J. M. LOPEZ, D. LOUKAS, P. LUTZ, L. LYONS, J. MACNAUGHTON, A. MALEK, S. MALTEZOS, F. MANDL, J. MARCO, R. MARCO, B. MARECHAL, M. MARGONI, J. C. MARIN, C. MARIOTTI, A. MARKOU, C. MARTINEZ RIVERO, J. MASIK, N. MASTROYIANNOPOULOS, F. MATORRAS, C. MATTEUZZI, F. MAZZUCATO, M. MAZZUCATO, R. MC NULTY, C. MERONI, E. MIGLIORE, W. MITAROFF, U. MJOERNMARK, T. MOA, M. MOCH, K. MOENIG, R. MONGE, J. MONTENEGRO, D. MORAES, S. MORENO, P. MORETTINI, U. MUELLER, K. MUENICH, M. MULDERS, L. MUNDIM, W. MURRAY, B. MURYN, G. MYATT, T. MYKLEBUST, M. NASSIAKOU, K. NAWROCKI, S. NEMECEK, R. NICOLAIDOU, M. NIKOLENKO, A. OBLAKOWSKA MUCHA, V. OBRAZTSOV, A. OLSHEVSKI, A. ONOFRE, R. ORAVA, K. OSTERBERG, A. OURAOU, A. OYANGUREN, M. PAGANONI, J. P. PALACIOS, H. PALKA, T.H. D. PAPADOPOULOU, L. PAPE, C. PARKES, F. PARODI, U. PARZEFALL, A. PASSERI, O. PASSON, L. PERALTA, V. PEREPELITSA, A. PETROLINI, J. PIEDRA, L. PIERI, F. PIERRE, M. PIMENTA, E. PIOTTO, T. PODOBNIK, V. POIREAU, M. E. POL, G. POLOK, V. POZDNIAKOV, N. PUKHAEVA, A. PULLIA, D. RADOJICIC, P. REBECCHI, J. REHN, D. REID, R. REINHARDT, P. RENTON, F. RICHARD, J. RIDKY, M. RIVERO, D. RODRIGUEZ, A. ROMERO, P. RONCHESE, P. ROUDEAU, V. RUHLMANN KLEIDER, D. RYABTCHIKOV, A. SADOVSKY, L. SALMI, J. SALT, C. SANDER, A. SAVOY NAVARRO, U. SCHWICKERATH, R. SEKULIN, M. SIEBEL, A. SISAKIAN, G. SMADJA, O. SMIRNOVA, A. SOKOLOV, A. SOPCZAK, R. SOSNOWSKI, T. SPASSOV, M. STANITZKI, A. STOCCHI, J. STRAUSS, B. STUGU, M. SZCZEKOWSKI, M. SZEPTYCKA, T. SZUMLAK, T. TABARELLI, F. TEGENFELDT, J. TIMMERMANS, L. TKATCHEV, M. TOBIN, S. TODOROVOVA, B. TOME, A. TONAZZO, P. TORTOSA, P. TRAVNICEK, D. TREILLE, G. TRISTRAM, M. TROCHIMCZUK, C. TRONCON, M. L. TURLUER, I. A. TYAPKIN, P. TYAPKIN, S. TZAMARIAS, V. UVAROV, G. VALENTI, P. VAN DAM, J. VAN ELDIK, N. VAN REMORTEL, I. VAN VULPEN, G. VEGNI, F. VELOSO, W. VENUS, P. VERDIER, V. VERZI, D. VILANOVA, L. VITALE, V. VRBA, H. WAHLEN, A. J. WASHBROOK, C. WEISER, D. WICKE, J. WICKENS, G. WILKINSON, M. WINTER, M. WITEK, O. YUSHCHENKO, A. ZALEWSKA, P. ZALEWSKI, D. ZAVRTANIK, V. ZHURAVLOV, N. I. ZIMIN, A. ZINTCHENKO, M. ZUPAN, NAVARRIA, FRANCESCO LUIGI, PAIANO, SIMONE, PERROTTA, ANDREA, ROVELLI, TIZIANO, J. ABDALLAH, P. ABREU, W. ADAM, P. ADZIC, T. ALBRECHT, R. ALEMANY-FERNANDEZ, T. ALLMENDINGER, P. P. ALLPORT, U. AMALDI, N. AMAPANE, S. AMATO, E. ANASHKIN, A. ANDREAZZA, S. ANDRINGA, N. ANJOS, P. ANTILOGUS, W-D. APEL, Y. ARNOUD, S. ASK, B. ASMAN, J. E. AUGUSTIN, A. AUGUSTINUS, P. BAILLON, A. BALLESTRERO, P. BAMBADE, R. BARBIER, D. BARDIN, G. J. BARKER, A. BARONCELLI, M. BATTAGLIA, M. BAUBILLIER, K-H. BECKS, M. BEGALLI, A. BEHRMANN, E. BEN-HAIM, N. BENEKOS, A. BENVENUTI, C. BERAT, M. BERGGREN, D. BERTRAND, M. BESANCON, N. BESSON, D. BLOCH, M. BLOM, M. BLUJ, M. BONESINI, M. BOONEKAMP, P. S. L. BOOTH, G. BORISOV, O. BOTNER, B. BOUQUET, T. J. V. BOWCOCK, I. BOYKO, M. BRACKO, R. BRENNER, E. BRODET, P. BRUCKMAN, J. M. BRUNET, B. BUSCHBECK, P. BUSCHMANN, M. CALVI, T. CAMPORESI, V. CANALE, F. CARENA, N. CASTRO, F. CAVALLO, M. CHAPKIN, PH. CHARPENTIER, P. CHECCHIA, R. CHIERICI, P. CHLIAPNIKOV, J. CHUDOBA, S. U. CHUNG, K. CIESLIK, P. COLLINS, R. CONTRI, G. COSME, F. COSSUTTI, M. J. COSTA, D. CRENNELL, J. CUEVAS, J. D’HONDT, T. DA SILVA, W. DA SILVA, G. DELLA RICCA, A. DE ANGELIS, W. DE BOER, C. DE CLERCQ, B. DE LOTTO, N. DE MARIA, A. DE MIN, L. DE PAULA, L. DI CIACCIO, A. DI SIMONE, K. DOROBA, J. DREES, G. EIGEN, T. EKELOF, M. ELLERT, M. ELSING, M. C. ESPIRITO SANTO, G. FANOURAKIS, D. FASSOULIOTIS, M. FEINDT, J. FERNANDEZ, A. FERRER, F. FERRO, U. FLAGMEYER, H. FOETH, E. FOKITIS, F. FULDA-QUENZER, J. FUSTER, M. GANDELMAN, C. GARCIA, PH. GAVILLET, E. GAZIS, R. GOKIELI, B. GOLOB, G. GOMEZ-CEBALLOS, P. GONCALVES, E. GRAZIANI, G. GROSDIDIER, K. GRZELAK, J. GUY, C. HAAG, A. HALLGREN, K. HAMACHER, K. HAMILTON, S. HAUG, F. HAULER, V. HEDBERG, M. HENNECKE, J. HOFFMAN, S-O. HOLMGREN, P. J. HOLT, M. A. HOULDEN, J. N. JACKSON, G. JARLSKOG, P. JARRY, D. JEANS, E. K. JOHANSSON, P. JONSSON, C. JORAM, L. JUNGERMANN, F. KAPUSTA, S. KATSANEVAS, E. KATSOUFIS, G. KERNEL, B. P. KERSEVAN, U. KERZEL, B. T. KING, N. J. KJAER, P. KLUIT, P. KOKKINIAS, C. KOURKOUMELIS, O. KOUZNETSOV, Z. KRUMSTEIN, M. KUCHARCZYK, J. LAMSA, G. LEDER, F. LEDROIT, L. LEINONEN, R. LEITNER, J. LEMONNE, V. LEPELTIER, T. LESIAK, W. LIEBIG, D. LIKO, A. LIPNIACKA, J. H. LOPES, J. M. LOPEZ, D. LOUKAS, P. LUTZ, L. LYONS, J. MACNAUGHTON, A. MALEK, S. MALTEZOS, F. MANDL, J. MARCO, R. MARCO, B. MARECHAL, M. MARGONI, J-C. MARIN, C. MARIOTTI, A. MARKOU, C. MARTINEZ-RIVERO, J. MASIK, N. MASTROYIANNOPOULOS, F. MATORRAS, C. MATTEUZZI, F. MAZZUCATO, M. MAZZUCATO, R. MC NULTY, C. MERONI, E. MIGLIORE, W. MITAROFF, U. MJOERNMARK, T. MOA, M. MOCH, K. MOENIG, R. MONGE, J. MONTENEGRO, D. MORAES, S. MORENO, P. MORETTINI, U. MUELLER, K. MUENICH, M. MULDERS, L. MUNDIM, W. MURRAY, B. MURYN, G. MYATT, T. MYKLEBUST, M. NASSIAKOU, F. NAVARRIA, K. NAWROCKI, S. NEMECEK, R. NICOLAIDOU, M. NIKOLENKO, A. OBLAKOWSKA-MUCHA, V. OBRAZTSOV, A. OLSHEVSKI, A. ONOFRE, R. ORAVA, K. OSTERBERG, A. OURAOU, A. OYANGUREN, M. PAGANONI, S. PAIANO, J. P. PALACIOS, H. PALKA, TH. D. PAPADOPOULOU, L. PAPE, C. PARKES, F. PARODI, U. PARZEFALL, A. PASSERI, O. PASSON, L. PERALTA, V. PEREPELITSA, A. PERROTTA, A. PETROLINI, J. PIEDRA, L. PIERI, F. PIERRE, M. PIMENTA, E. PIOTTO, T. PODOBNIK, V. POIREAU, M. E. POL, G. POLOK, V. POZDNIAKOV, N. PUKHAEVA, A. PULLIA, D. RADOJICIC, P. REBECCHI, J. REHN, D. REID, R. REINHARDT, P. RENTON, F. RICHARD, J. RIDKY, M. RIVERO, D. RODRIGUEZ, A. ROMERO, P. RONCHESE, P. ROUDEAU, T. ROVELLI, V. RUHLMANN-KLEIDER, D. RYABTCHIKOV, A. SADOVSKY, L. SALMI, J. SALT, C. SANDER, A. SAVOY-NAVARRO, U. SCHWICKERATH, R. SEKULIN, M. SIEBEL, A. SISAKIAN, G. SMADJA, O. SMIRNOVA, A. SOKOLOV, A. SOPCZAK, R. SOSNOWSKI, T. SPASSOV, M. STANITZKI, A. STOCCHI, J. STRAUSS, B. STUGU, M. SZCZEKOWSKI, M. SZEPTYCKA, T. SZUMLAK, T. TABARELLI, F. TEGENFELDT, J. TIMMERMANS, L. TKATCHEV, M. TOBIN, S. TODOROVOVA, B. TOME, A. TONAZZO, P. TORTOSA, P. TRAVNICEK, D. TREILLE, G. TRISTRAM, M. TROCHIMCZUK, C. TRONCON, M-L. TURLUER, I. A. TYAPKIN, P. TYAPKIN, S. TZAMARIAS, V. UVAROV, G. VALENTI, P. VAN DAM, J. VAN ELDIK, N. VAN REMORTEL, I. VAN VULPEN, G. VEGNI, F. VELOSO, W. VENUS, P. VERDIER, V. VERZI, D. VILANOVA, L. VITALE, V. VRBA, H. WAHLEN, A. J. WASHBROOK, C. WEISER, D. WICKE, J. WICKENS, G. WILKINSON, M. WINTER, M. WITEK, O. YUSHCHENKO, A. ZALEWSKA, P. ZALEWSKI, D. ZAVRTANIK, V. ZHURAVLOV, N. I. ZIMIN, A. ZINTCHENKO, and M. ZUPAN

Subjects
E+E, W-BOSON, LEP, POLARISATION, DELPHI
Abstract

In a study of the reaction e−e+→W−W+ with the DELPHI detector, the probabilities of the two W particles occurring in the joint polarisation states transverse–transverse (T T ), longitudinal–transverse plus transverse–longitudinal (LT ) and longitudinal–longitudinal (LL) have been determined using the final states WW→lνq¯q (l = e,μ). The two-particle joint polarisation probabilities, i.e. the spin density matrix elements ρT T , ρLT , ρLL, are measured as functions of the W− production angle, θW−, at an average reaction energy of 198.2 GeV. Averaged over all cos θW−, the following joint probabilities are obtained: ρ¯T T = (67±8)%, ρ¯LT = (30± 8)%, ρ¯LL = (3 ±7)%. These results are in agreement with the StandardModel predictions of 63.0%, 28.9% and 8.1%, respectively. The related polarisation cross-sections σT T , σLT and σLL are also presented.

Published
2009

36. A study of b bbar production in e+e− collisions at √s=130 –207 GeV

Author

J. ABDALLAH, P. ABREU, W. ADAM, P. ADZIC, T. ALBRECHT, R. ALEMANY FERNANDEZ, T. ALLMENDINGER, P. P. ALLPORT, U. AMALDI, N. AMAPANE, S. AMATO, E. ANASHKIN, A. ANDREAZZA, S. ANDRINGA, N. ANJOS, P. ANTILOGUS, W. D. APEL, Y. ARNOUD, S. ASK, B. ASMAN, J. E. AUGUSTIN, A. AUGUSTINUS, P. BAILLON, A. BALLESTRERO, P. BAMBADE, R. BARBIER, D. BARDIN, G. J. BARKER, A. BARONCELLI, M. BATTAGLIA, M. BAUBILLIER, K. H. BECKS, M. BEGALLI, A. BEHRMANN, E. BEN HAIM, N. BENEKOS, A. BENVENUTI, C. BERAT, M. BERGGREN, D. BERTRAND, M. BESANCON, N. BESSON, D. BLOCH, M. BLOM, M. BLUJ, M. BONESINI, M. BOONEKAMP, P. S. L. BOOTH, G. BORISOV, O. BOTNER, B. BOUQUET, T. J. V. BOWCOCK, I. BOYKO, M. BRACKO, R. BRENNER, E. BRODET, P. BRUCKMAN, J. M. BRUNET, B. BUSCHBECK, P. BUSCHMANN, M. CALVI, T. CAMPORESI, V. CANALE, F. CARENA, N. CASTRO, F. CAVALLO, M. CHAPKIN, P.H. CHARPENTIER, P. CHECCHIA, R. CHIERICI, P. CHLIAPNIKOV, J. CHUDOBA, S. U. CHUNG, K. CIESLIK, P. COLLINS, R. CONTRI, G. COSME, F. COSSUTTI, M. J. COSTA, D. CRENNELL, J. CUEVAS, J. D’HONDT, T. DA SILVA, W. DA SILVA, G. DELLA RICCA, A. DE ANGELIS, W. DE BOER, C. DE CLERCQ, B. DE LOTTO, N. DE MARIA, A. DE MIN, L. DE PAULA, L. DI CIACCIO, A. DI SIMONE, K. DOROBA, J. DREES, G. EIGEN, T. EKELOF, M. ELLERT, M. ELSING, M. C. ESPIRITO SANTO, G. FANOURAKIS, D. FASSOULIOTIS, M. FEINDT, J. FERNANDEZ, A. FERRER, F. FERRO, U. FLAGMEYER, H. FOETH, E. FOKITIS, F. FULDA QUENZER, J. FUSTER, M. GANDELMAN, C. GARCIA, P.H. GAVILLET, E. GAZIS, R. GOKIELI, B. GOLOB, G. GOMEZ CEBALLOS, P. GONCALVES, E. GRAZIANI, G. GROSDIDIER, K. GRZELAK, J. GUY, C. HAAG, A. HALLGREN, K. HAMACHER, K. HAMILTON, S. HAUG, F. HAULER, V. HEDBERG, M. HENNECKE, J. HOFFMAN, S. O. HOLMGREN, P. J. HOLT, M. A. HOULDEN, J. N. JACKSON, G. JARLSKOG, P. JARRY, D. JEANS, E. K. JOHANSSON, P. JONSSON, C. JORAM, L. JUNGERMANN, F. KAPUSTA, S. KATSANEVAS, E. KATSOUFIS, G. KERNEL, B. P. KERSEVAN, U. KERZEL, B. T. KING, N. J. KJAER, P. KLUIT, P. KOKKINIAS, C. KOURKOUMELIS, O. KOUZNETSOV, Z. KRUMSTEIN, M. KUCHARCZYK, J. LAMSA, G. LEDER, F. LEDROIT, L. LEINONEN, R. LEITNER, J. LEMONNE, V. LEPELTIER, T. LESIAK, W. LIEBIG, D. LIKO, A. LIPNIACKA, J. H. LOPES, J. M. LOPEZ, D. LOUKAS, P. LUTZ, L. LYONS, J. MACNAUGHTON, A. MALEK, S. MALTEZOS, F. MANDL, J. MARCO, R. MARCO, B. MARECHAL, M. MARGONI, J. C. MARIN, C. MARIOTTI, A. MARKOU, C. MARTINEZ RIVERO, J. MASIK, N. MASTROYIANNOPOULOS, F. MATORRAS, C. MATTEUZZI, F. MAZZUCATO, M. MAZZUCATO, R. MC NULTY, C. MERONI, E. MIGLIORE, W. MITAROFF, U. MJOERNMARK, T. MOA, M. MOCH, K. MOENIG, R. MONGE, J. MONTENEGRO, D. MORAES, S. MORENO, P. MORETTINI, U. MUELLER, K. MUENICH, M. MULDERS, L. MUNDIM, W. MURRAY, B. MURYN, G. MYATT, T. MYKLEBUST, M. NASSIAKOU, K. NAWROCKI, S. NEMECEK, R. NICOLAIDOU, M. NIKOLENKO, A. OBLAKOWSKA MUCHA, V. OBRAZTSOV, A. OLSHEVSKI, A. ONOFRE, R. ORAVA, K. OSTERBERG, A. OURAOU, A. OYANGUREN, M. PAGANONI, J. P. PALACIOS, H. PALKA, T.H. D. PAPADOPOULOU, L. PAPE, C. PARKES, F. PARODI, U. PARZEFALL, A. PASSERI, O. PASSON, L. PERALTA, V. PEREPELITSA, A. PETROLINI, J. PIEDRA, L. PIERI, F. PIERRE, M. PIMENTA, E. PIOTTO, T. PODOBNIK, V. POIREAU, M. E. POL, G. POLOK, V. POZDNIAKOV, N. PUKHAEVA, A. PULLIA, D. RADOJICIC, P. REBECCHI, J. REHN, D. REID, R. REINHARDT, P. RENTON, F. RICHARD, J. RIDKY, M. RIVERO, D. RODRIGUEZ, A. ROMERO, P. RONCHESE, P. ROUDEAU, V. RUHLMANN KLEIDER, D. RYABTCHIKOV, A. SADOVSKY, L. SALMI, J. SALT, C. SANDER, A. SAVOY NAVARRO, U. SCHWICKERATH, R. SEKULIN, M. SIEBEL, A. SISAKIAN, G. SMADJA, O. SMIRNOVA, A. SOKOLOV, A. SOPCZAK, R. SOSNOWSKI, T. SPASSOV, M. STANITZKI, A. STOCCHI, J. STRAUSS, B. STUGU, M. SZCZEKOWSKI, M. SZEPTYCKA, T. SZUMLAK, T. TABARELLI, F. TEGENFELDT, J. TIMMERMANS, L. TKATCHEV, M. TOBIN, S. TODOROVOVA, B. TOME, A. TONAZZO, P. TORTOSA, P. TRAVNICEK, D. TREILLE, G. TRISTRAM, M. TROCHIMCZUK, C. TRONCON, M. L. TURLUER, I. A. TYAPKIN, P. TYAPKIN, S. TZAMARIAS, V. UVAROV, G. VALENTI, P. VAN DAM, J. VAN ELDIK, N. VAN REMORTEL, I. VAN VULPEN, G. VEGNI, F. VELOSO, W. VENUS, P. VERDIER, V. VERZI, D. VILANOVA, L. VITALE, V. VRBA, H. WAHLEN, A. J. WASHBROOK, C. WEISER, D. WICKE, J. WICKENS, G. WILKINSON, M. WINTER, M. WITEK, O. YUSHCHENKO, A. ZALEWSKA, P. ZALEWSKI, D. ZAVRTANIK, V. ZHURAVLOV, N. I. ZIMIN, A. ZINTCHENKO, M. ZUPAN, NAVARRIA, FRANCESCO LUIGI, PAIANO, SIMONE, PERROTTA, ANDREA, ROVELLI, TIZIANO, J. ABDALLAH, P. ABREU, W. ADAM, P. ADZIC, T. ALBRECHT, R. ALEMANY-FERNANDEZ, T. ALLMENDINGER, P. P. ALLPORT, U. AMALDI, N. AMAPANE, S. AMATO, E. ANASHKIN, A. ANDREAZZA, S. ANDRINGA, N. ANJOS, P. ANTILOGUS, W-D. APEL, Y. ARNOUD, S. ASK, B. ASMAN, J. E. AUGUSTIN, A. AUGUSTINUS, P. BAILLON, A. BALLESTRERO, P. BAMBADE, R. BARBIER, D. BARDIN, G. J. BARKER, A. BARONCELLI, M. BATTAGLIA, M. BAUBILLIER, K-H. BECKS, M. BEGALLI, A. BEHRMANN, E. BEN-HAIM, N. BENEKOS, A. BENVENUTI, C. BERAT, M. BERGGREN, D. BERTRAND, M. BESANCON, N. BESSON, D. BLOCH, M. BLOM, M. BLUJ, M. BONESINI, M. BOONEKAMP, P. S. L. BOOTH, G. BORISOV, O. BOTNER, B. BOUQUET, T. J. V. BOWCOCK, I. BOYKO, M. BRACKO, R. BRENNER, E. BRODET, P. BRUCKMAN, J. M. BRUNET, B. BUSCHBECK, P. BUSCHMANN, M. CALVI, T. CAMPORESI, V. CANALE, F. CARENA, N. CASTRO, F. CAVALLO, M. CHAPKIN, PH. CHARPENTIER, P. CHECCHIA, R. CHIERICI, P. CHLIAPNIKOV, J. CHUDOBA, S. U. CHUNG, K. CIESLIK, P. COLLINS, R. CONTRI, G. COSME, F. COSSUTTI, M. J. COSTA, D. CRENNELL, J. CUEVAS, J. D’HONDT, T. DA SILVA, W. DA SILVA, G. DELLA RICCA, A. DE ANGELIS, W. DE BOER, C. DE CLERCQ, B. DE LOTTO, N. DE MARIA, A. DE MIN, L. DE PAULA, L. DI CIACCIO, A. DI SIMONE, K. DOROBA, J. DREES, G. EIGEN, T. EKELOF, M. ELLERT, M. ELSING, M. C. ESPIRITO SANTO, G. FANOURAKIS, D. FASSOULIOTIS, M. FEINDT, J. FERNANDEZ, A. FERRER, F. FERRO, U. FLAGMEYER, H. FOETH, E. FOKITIS, F. FULDA-QUENZER, J. FUSTER, M. GANDELMAN, C. GARCIA, PH. GAVILLET, E. GAZIS, R. GOKIELI, B. GOLOB, G. GOMEZ-CEBALLOS, P. GONCALVES, E. GRAZIANI, G. GROSDIDIER, K. GRZELAK, J. GUY, C. HAAG, A. HALLGREN, K. HAMACHER, K. HAMILTON, S. HAUG, F. HAULER, V. HEDBERG, M. HENNECKE, J. HOFFMAN, S-O. HOLMGREN, P. J. HOLT, M. A. HOULDEN, J. N. JACKSON, G. JARLSKOG, P. JARRY, D. JEANS, E. K. JOHANSSON, P. JONSSON, C. JORAM, L. JUNGERMANN, F. KAPUSTA, S. KATSANEVAS, E. KATSOUFIS, G. KERNEL, B. P. KERSEVAN, U. KERZEL, B. T. KING, N. J. KJAER, P. KLUIT, P. KOKKINIAS, C. KOURKOUMELIS, O. KOUZNETSOV, Z. KRUMSTEIN, M. KUCHARCZYK, J. LAMSA, G. LEDER, F. LEDROIT, L. LEINONEN, R. LEITNER, J. LEMONNE, V. LEPELTIER, T. LESIAK, W. LIEBIG, D. LIKO, A. LIPNIACKA, J. H. LOPES, J. M. LOPEZ, D. LOUKAS, P. LUTZ, L. LYONS, J. MACNAUGHTON, A. MALEK, S. MALTEZOS, F. MANDL, J. MARCO, R. MARCO, B. MARECHAL, M. MARGONI, J-C. MARIN, C. MARIOTTI, A. MARKOU, C. MARTINEZ-RIVERO, J. MASIK, N. MASTROYIANNOPOULOS, F. MATORRAS, C. MATTEUZZI, F. MAZZUCATO, M. MAZZUCATO, R. MC NULTY, C. MERONI, E. MIGLIORE, W. MITAROFF, U. MJOERNMARK, T. MOA, M. MOCH, K. MOENIG, R. MONGE, J. MONTENEGRO, D. MORAES, S. MORENO, P. MORETTINI, U. MUELLER, K. MUENICH, M. MULDERS, L. MUNDIM, W. MURRAY, B. MURYN, G. MYATT, T. MYKLEBUST, M. NASSIAKOU, F. NAVARRIA, K. NAWROCKI, S. NEMECEK, R. NICOLAIDOU, M. NIKOLENKO, A. OBLAKOWSKA-MUCHA, V. OBRAZTSOV, A. OLSHEVSKI, A. ONOFRE, R. ORAVA, K. OSTERBERG, A. OURAOU, A. OYANGUREN, M. PAGANONI, S. PAIANO, J. P. PALACIOS, H. PALKA, TH. D. PAPADOPOULOU, L. PAPE, C. PARKES, F. PARODI, U. PARZEFALL, A. PASSERI, O. PASSON, L. PERALTA, V. PEREPELITSA, A. PERROTTA, A. PETROLINI, J. PIEDRA, L. PIERI, F. PIERRE, M. PIMENTA, E. PIOTTO, T. PODOBNIK, V. POIREAU, M. E. POL, G. POLOK, V. POZDNIAKOV, N. PUKHAEVA, A. PULLIA, D. RADOJICIC, P. REBECCHI, J. REHN, D. REID, R. REINHARDT, P. RENTON, F. RICHARD, J. RIDKY, M. RIVERO, D. RODRIGUEZ, A. ROMERO, P. RONCHESE, P. ROUDEAU, T. ROVELLI, V. RUHLMANN-KLEIDER, D. RYABTCHIKOV, A. SADOVSKY, L. SALMI, J. SALT, C. SANDER, A. SAVOY-NAVARRO, U. SCHWICKERATH, R. SEKULIN, M. SIEBEL, A. SISAKIAN, G. SMADJA, O. SMIRNOVA, A. SOKOLOV, A. SOPCZAK, R. SOSNOWSKI, T. SPASSOV, M. STANITZKI, A. STOCCHI, J. STRAUSS, B. STUGU, M. SZCZEKOWSKI, M. SZEPTYCKA, T. SZUMLAK, T. TABARELLI, F. TEGENFELDT, J. TIMMERMANS, L. TKATCHEV, M. TOBIN, S. TODOROVOVA, B. TOME, A. TONAZZO, P. TORTOSA, P. TRAVNICEK, D. TREILLE, G. TRISTRAM, M. TROCHIMCZUK, C. TRONCON, M-L. TURLUER, I. A. TYAPKIN, P. TYAPKIN, S. TZAMARIAS, V. UVAROV, G. VALENTI, P. VAN DAM, J. VAN ELDIK, N. VAN REMORTEL, I. VAN VULPEN, G. VEGNI, F. VELOSO, W. VENUS, P. VERDIER, V. VERZI, D. VILANOVA, L. VITALE, V. VRBA, H. WAHLEN, A. J. WASHBROOK, C. WEISER, D. WICKE, J. WICKENS, G. WILKINSON, M. WINTER, M. WITEK, O. YUSHCHENKO, A. ZALEWSKA, P. ZALEWSKI, D. ZAVRTANIK, V. ZHURAVLOV, N. I. ZIMIN, A. ZINTCHENKO, and M. ZUPAN

Subjects
E+E, B-QUARK, LEP, DELPHI
Abstract

Measurements are presented of Rb, the ratio ofthe b¯b cross-section to the q¯q cross-section in e+e− collisions, and the forward-backward asymmetry AbFB at twelve energy points in the range √s = 130–207 GeV. These results are found to be consistent with the Standard Model expectations. The measurements are used to set limits on new physics scenarios involving contact interactions.

Published
2009

37. Measurement of the mass and width of the W boson in e+e− collisions at GeV

Author

P. Abreu, W. Adam, T. Adye, P. Adzic, Z. Albrecht, T. Alderweireld, G.D. Alekseev, R. Alemany, T. Allmendinger, P.P. Allport, S. Almehed, U. Amaldi, N. Amapane, S. Amato, E. Anashkin, E.G. Anassontzis, P. Andersson, A. Andreazza, S. Andringa, N. Anjos, P. Antilogus, W.-D. Apel, Y. Arnoud, B. Åsman, J.-E. Augustin, A. Augustinus, P. Baillon, A. Ballestrero, P. Bambade, F. Barao, G. Barbiellini, R. Barbier, D.Y. Bardin, G. Barker, A. Baroncelli, M. Battaglia, M. Baubillier, K.-H. Becks, M. Begalli, A. Behrmann, T.F. Bellunato, Yu. Belokopytov, K. Belous, N.C. Benekos, A.C. Benvenuti, C. Berat, M. Berggren, L. Berntzon, D. Bertrand, M. Besancon, N. Besson, M.S. Bilenky, D. Bloch, H.M. Blom, L. Bol, M. Bonesini, M. Boonekamp, P.S.L. Booth, G. Borisov, C. Bosio, O. Botner, E. Boudinov, B. Bouquet, T.J.V. Bowcock, I. Boyko, I. Bozovic, M. Bracko, P. Branchini, R.A. Brenner, P. Bruckman, J.-M. Brunet, L. Bugge, P. Buschmann, M. Caccia, M. Calvi, T. Camporesi, V. Canale, F. Carena, L. Carroll, C. Caso, M.V. Castillo Gimenez, A. Cattai, F.R. Cavallo, M. Chapkin, Ph. Charpentier, P. Checchia, G.A. Chelkov, R. Chierici, P. Chliapnikov, P. Chochula, V. Chorowicz, J. Chudoba, K. Cieslik, P. Collins, R. Contri, E. Cortina, G. Cosme, F. Cossutti, M. Costa, H.B. Crawley, D. Crennell, J. Croix, G. Crosetti, J. Cuevas Maestro, S. Czellar, J. D'Hondt, J. Dalmau, M. Davenport, W. Da Silva, G. Della Ricca, P. Delpierre, N. Demaria, A. De Angelis, W. De Boer, C. De Clercq, B. De Lotto, A. De Min, L. De Paula, H. Dijkstra, L. Di Ciaccio, K. Doroba, M. Dracos, J. Drees, M. Dris, G. Eigen, T. Ekelof, M. Ellert, M. Elsing, J.-P. Engel, M. Espirito Santo, G. Fanourakis, D. Fassouliotis, M. Feindt, J. Fernandez, A. Ferrer, E. Ferrer-Ribas, F. Ferro, A. Firestone, U. Flagmeyer, H. Foeth, E. Fokitis, F. Fontanelli, B. Franek, A.G. Frodesen, R. Fruhwirth, F. Fulda-Quenzer, J. Fuster, A. Galloni, D. Gamba, S. Gamblin, M. Gandelman, C. Garcia, C. Gaspar, M. Gaspar, U. Gasparini, Ph. Gavillet, E.N. Gazis, D. Gele, T. Geralis, N. Ghodbane, I. Gil, F. Glege, R. Gokieli, B. Golob, G. Gomez-Ceballos, P. Goncalves, I. Gonzalez Caballero, G. Gopal, L. Gorn, Yu. Gouz, V. Gracco, J. Grahl, E. Graziani, G. Grosdidier, K. Grzelak, J. Guy, C. Haag, F. Hahn, S. Hahn, S. Haider, A. Hallgren, K. Hamacher, J. Hansen, F.J. Harris, S. Haug, F. Hauler, V. Hedberg, S. Heising, J.J. Hernandez, P. Herquet, H. Herr, O. Hertz, E. Higon, S.-O. Holmgren, P.J. Holt, S. Hoorelbeke, M. Houlden, J. Hrubec, G.J. Hughes, K. Hultqvist, J.N. Jackson, R. Jacobsson, P. Jalocha, Ch. Jarlskog, G. Jarlskog, P. Jarry, B. Jean-Marie, D. Jeans, E.K. Johansson, P. Jonsson, C. Joram, P. Juillot, L. Jungermann, F. Kapusta, K. Karafasoulis, S. Katsanevas, E.C. Katsoufis, R. Keranen, G. Kernel, B.P. Kersevan, Yu. Khokhlov, B.A. Khomenko, N.N. Khovanski, A. Kiiskinen, B. King, A. Kinvig, N.J. Kjaer, O. Klapp, P. Kluit, P. Kokkinias, V. Kostioukhine, C. Kourkoumelis, O. Kouznetsov, M. Krammer, E. Kriznic, Z. Krumstein, P. Kubinec, M. Kucharczyk, J. Kurowska, J.W. Lamsa, J.-P. Laugier, G. Leder, F. Ledroit, L. Leinonen, A. Leisos, R. Leitner, G. Lenzen, V. Lepeltier, T. Lesiak, M. Lethuillier, J. Libby, W. Liebig, D. Liko, A. Lipniacka, I. Lippi, J.G. Loken, J.H. Lopes, J.M. Lopez, R. Lopez-Fernandez, D. Loukas, P. Lutz, L. Lyons, J. MacNaughton, J.R. Mahon, A. Maio, A. Malek, S. Maltezos, V. Malychev, F. Mandl, J. Marco, R. Marco, B. Marechal, M. Margoni, J.-C. Marin, C. Mariotti, A. Markou, C. Martinez-Rivero, S. Marti i Garcia, J. Masik, N. Mastroyiannopoulos, F. Matorras, C. Matteuzzi, G. Matthiae, F. Mazzucato, M. Mazzucato, M. Mc Cubbin, R. Mc Kay, R. Mc Nulty, G. Mc Pherson, E. Merle, C. Meroni, W.T. Meyer, E. Migliore, L. Mirabito, W.A. Mitaroff, U. Mjoernmark, T. Moa, M. Moch, K. Moenig, M.R. Monge, J. Montenegro, D. Moraes, P. Morettini, G. Morton, U. Mueller, K. Muenich, M. Mulders, L.M. Mundim, W.J. Murray, B. Muryn, G. Myatt, T. Myklebust, M. Nassiakou, F.L. Navarria, K. Nawrocki, P. Negri, S. Nemecek, N. Neufeld, R. Nicolaidou, P. Niezurawski, M. Nikolenko, V. Nomokonov, A. Nygren, V. Obraztsov, A.G. Olshevski, A. Onofre, R. Orava, K. Osterberg, A. Ouraou, A. Oyanguren, M. Paganoni, S. Paiano, R. Pain, R. Paiva, J. Palacios, H. Palka, Th.D. Papadopoulou, L. Pape, C. Parkes, F. Parodi, U. Parzefall, A. Passeri, O. Passon, L. Peralta, V. Perepelitsa, M. Pernicka, A. Perrotta, C. Petridou, A. Petrolini, H.T. Phillips, F. Pierre, M. Pimenta, E. Piotto, T. Podobnik, V. Poireau, M.E. Pol, G. Polok, P. Poropat, V. Pozdniakov, P. Privitera, N. Pukhaeva, A. Pullia, D. Radojicic, S. Ragazzi, H. Rahmani, A.L. Read, P. Rebecchi, N.G. Redaelli, M. Regler, J. Rehn, D. Reid, R. Reinhardt, P.B. Renton, L.K. Resvanis, F. Richard, J. Ridky, G. Rinaudo, I. Ripp-Baudot, A. Romero, P. Ronchese, E.I. Rosenberg, P. Rosinsky, P. Roudeau, T. Rovelli, V. Ruhlmann-Kleider, A. Ruiz, H. Saarikko, Y. Sacquin, A. Sadovsky, G. Sajot, L. Salmi, J. Salt, D. Sampsonidis, M. Sannino, A. Savoy-Navarro, C. Schwanda, Ph. Schwemling, B. Schwering, U. Schwickerath, F. Scuri, Y. Sedykh, A.M. Segar, R. Sekulin, G. Sette, R.C. Shellard, M. Siebel, L. Simard, F. Simonetto, A.N. Sisakian, G. Smadja, N. Smirnov, O. Smirnova, G.R. Smith, A. Sokolov, O. Solovianov, A. Sopczak, R. Sosnowski, T. Spassov, E. Spiriti, S. Squarcia, C. Stanescu, M. Stanitzki, K. Stevenson, A. Stocchi, J. Strauss, R. Strub, B. Stugu, M. Szczekowski, M. Szeptycka, T. Tabarelli, A. Taffard, F. Tegenfeldt, F. Terranova, J. Timmermans, N. Tinti, L.G. Tkatchev, M. Tobin, S. Todorova, B. Tome, A. Tonazzo, L. Tortora, P. Tortosa, D. Treille, G. Tristram, M. Trochimczuk, C. Troncon, M.-L. Turluer, I.A. Tyapkin, P. Tyapkin, S. Tzamarias, O. Ullaland, V. Uvarov, G. Valenti, E. Vallazza, C. Vander Velde, P. Van Dam, W. Van den Boeck, W.K. Van Doninck, J. Van Eldik, A. Van Lysebetten, N. van Remortel, I. Van Vulpen, G. Vegni, L. Ventura, W. Venus, F. Verbeure, P. Verdier, M. Verlato, L.S. Vertogradov, V. Verzi, D. Vilanova, L. Vitale, E. Vlasov, A.S. Vodopyanov, G. Voulgaris, V. Vrba, H. Wahlen, A.J. Washbrook, C. Weiser, D. Wicke, J.H. Wickens, G.R. Wilkinson, M. Winter, M. Witek, G. Wolf, J. Yi, O. Yushchenko, A. Zalewska, P. Zalewski, D. Zavrtanik, E. Zevgolatakos, N.I. Zimin, A. Zintchenko, Ph. Zoller, G. Zumerle, and M. Zupan

Subjects
Physics, Nuclear and High Energy Physics, Particle physics, Luminosity (scattering theory), 010308 nuclear & particles physics, 0103 physical sciences, High Energy Physics::Experiment, Nuclear Experiment, 010306 general physics, 7. Clean energy, 01 natural sciences, Beam energy
Abstract

A measurement of the W mass and width has been performed by the DELPHI collaboration using the data collected during 1998. The data sample has an integrated luminosity of 155 pb^{-1} and an average centre-of-mass energy of 188.6 GeV. Results are obtained by applying the method of direct reconstruction of the mass of the W from its decay products in both the W+W- -> lvqq and W+W- -> qqqq channels. The W mass result for the 1998 data set is M_W = 80.387 +/- 0.087 (stat) +/- 0.034 (syst) +/- 0.017 (LEP) +/- 0.035 (FSI) GeV/c2, where FSI represents the uncertainty due to final state interaction effects in the qqqq channel, and LEP represents that arising from the knowledge of the beam energy of the accelerator. Combining this result with those previously published by the DELPHI collaboration gives the result M_W = 80.359 +/- 0.074 (stat) +/- 0.032 (syst) +/- 0.017 (LEP) +/- 0.033 (FSI) GeV/c2. The combined value for the W width is \Gamma_W = 2.266 +/- 0.176 (stat) +/- 0.056 (syst) +/- 0.052 (FSI) GeV/c2.

Published
2001

38. Measurement of V from the decay process →Dℓ

Author

P. Abreu, W. Adam, T. Adye, P. Adzic, Z. Albrecht, T. Alderweireld, G.D. Alekseev, R. Alemany, T. Allmendinger, P.P. Allport, S. Almehed, U. Amaldi, N. Amapane, S. Amato, E.G. Anassontzis, P. Andersson, A. Andreazza, S. Andringa, P. Antilogus, W.-D. Apel, Y. Arnoud, B. Åsman, J.-E. Augustin, A. Augustinus, P. Baillon, A. Ballestrero, P. Bambade, F. Barao, G. Barbiellini, R. Barbier, D.Y. Bardin, G. Barker, A. Baroncelli, M. Battaglia, M. Baubillier, K.-H. Becks, M. Begalli, A. Behrmann, P. Beilliere, Yu. Belokopytov, K. Belous, N.C. Benekos, A.C. Benvenuti, C. Berat, M. Berggren, L. Berntzon, D. Bertrand, M. Besancon, M.S. Bilenky, M.-A. Bizouard, D. Bloch, H.M. Blom, M. Bonesini, M. Boonekamp, P.S.L. Booth, G. Borisov, C. Bosio, O. Botner, E. Boudinov, B. Bouquet, C. Bourdarios, T.J.V. Bowcock, I. Boyko, I. Bozovic, M. Bozzo, M. Bracko, P. Branchini, R.A. Brenner, P. Bruckman, J.-M. Brunet, L. Bugge, T. Buran, B. Buschbeck, P. Buschmann, S. Cabrera, M. Caccia, M. Calvi, T. Camporesi, V. Canale, F. Carena, L. Carroll, C. Caso, M.V. Castillo Gimenez, A. Cattai, F.R. Cavallo, M. Chapkin, Ph. Charpentier, P. Checchia, G.A. Chelkov, R. Chierici, P. Chliapnikov, P. Chochula, V. Chorowicz, J. Chudoba, K. Cieslik, P. Collins, R. Contri, E. Cortina, G. Cosme, F. Cossutti, M. Costa, H.B. Crawley, D. Crennell, S. Crepe, G. Crosetti, J. Cuevas Maestro, S. Czellar, J. D'Hondt, J. Dalmau, M. Davenport, W. Da Silva, G. Della Ricca, P. Delpierre, N. Demaria, A. De Angelis, W. De Boer, C. De Clercq, B. De Lotto, A. De Min, L. De Paula, H. Dijkstra, L. Di Ciaccio, J. Dolbeau, K. Doroba, M. Dracos, J. Drees, M. Dris, A. Duperrin, G. Eigen, T. Ekelof, M. Ellert, M. Elsing, J.-P. Engel, M. Espirito Santo, G. Fanourakis, D. Fassouliotis, M. Feindt, J. Fernandez, A. Ferrer, E. Ferrer-Ribas, F. Ferro, A. Firestone, U. Flagmeyer, H. Foeth, E. Fokitis, F. Fontanelli, B. Franek, A.G. Frodesen, R. Fruhwirth, F. Fulda-Quenzer, J. Fuster, A. Galloni, D. Gamba, S. Gamblin, M. Gandelman, C. Garcia, C. Gaspar, M. Gaspar, U. Gasparini, Ph. Gavillet, E.N. Gazis, D. Gele, T. Geralis, N. Ghodbane, I. Gil, F. Glege, R. Gokieli, B. Golob, G. Gomez-Ceballos, P. Goncalves, I. Gonzalez Caballero, G. Gopal, L. Gorn, Yu. Gouz, V. Gracco, J. Grahl, E. Graziani, P. Gris, G. Grosdidier, K. Grzelak, J. Guy, C. Haag, F. Hahn, S. Hahn, S. Haider, A. Hallgren, K. Hamacher, J. Hansen, F.J. Harris, F. Hauler, V. Hedberg, S. Heising, J.J. Hernandez, P. Herquet, H. Herr, E. Higon, S.-O. Holmgren, P.J. Holt, S. Hoorelbeke, M. Houlden, J. Hrubec, M. Huber, G.J. Hughes, K. Hultqvist, J.N. Jackson, R. Jacobsson, P. Jalocha, R. Janik, Ch. Jarlskog, G. Jarlskog, P. Jarry, B. Jean-Marie, D. Jeans, E.K. Johansson, P. Jonsson, C. Joram, P. Juillot, L. Jungermann, F. Kapusta, K. Karafasoulis, S. Katsanevas, E.C. Katsoufis, R. Keranen, G. Kernel, B.P. Kersevan, Yu. Khokhlov, B.A. Khomenko, N.N. Khovanski, A. Kiiskinen, B. King, A. Kinvig, N.J. Kjaer, O. Klapp, H. Klein, P. Kluit, P. Kokkinias, V. Kostioukhine, C. Kourkoumelis, O. Kouznetsov, M. Krammer, E. Kriznic, Z. Krumstein, P. Kubinec, J. Kurowska, K. Kurvinen, J.W. Lamsa, D.W. Lane, V. Lapin, J.-P. Laugier, R. Lauhakangas, G. Leder, F. Ledroit, L. Leinonen, A. Leisos, R. Leitner, G. Lenzen, V. Lepeltier, T. Lesiak, M. Lethuillier, J. Libby, W. Liebig, D. Liko, A. Lipniacka, I. Lippi, B. Loerstad, J.G. Loken, J.H. Lopes, J.M. Lopez, R. Lopez-Fernandez, D. Loukas, P. Lutz, L. Lyons, J. MacNaughton, J.R. Mahon, A. Maio, A. Malek, S. Maltezos, V. Malychev, F. Mandl, J. Marco, R. Marco, B. Marechal, M. Margoni, J.-C. Marin, C. Mariotti, A. Markou, C. Martinez-Rivero, S. Marti i Garcia, J. Masik, N. Mastroyiannopoulos, F. Matorras, C. Matteuzzi, G. Matthiae, F. Mazzucato, M. Mazzucato, M. Mc Cubbin, R. Mc Kay, R. Mc Nulty, G. Mc Pherson, C. Meroni, W.T. Meyer, A. Miagkov, E. Migliore, L. Mirabito, W.A. Mitaroff, U. Mjoernmark, T. Moa, M. Moch, R. Moeller, K. Moenig, M.R. Monge, D. Moraes, P. Morettini, G. Morton, U. Mueller, K. Muenich, M. Mulders, C. Mulet-Marquis, R. Muresan, W.J. Murray, B. Muryn, G. Myatt, T. Myklebust, F. Naraghi, M. Nassiakou, F.L. Navarria, K. Nawrocki, P. Negri, N. Neufeld, R. Nicolaidou, B.S. Nielsen, P. Niezurawski, M. Nikolenko, V. Nomokonov, A. Nygren, V. Obraztsov, A.G. Olshevski, A. Onofre, R. Orava, G. Orazi, K. Osterberg, A. Ouraou, A. Oyanguren, M. Paganoni, S. Paiano, R. Pain, R. Paiva, J. Palacios, H. Palka, Th.D. Papadopoulou, L. Pape, C. Parkes, F. Parodi, U. Parzefall, A. Passeri, O. Passon, T. Pavel, M. Pegoraro, L. Peralta, M. Pernicka, A. Perrotta, C. Petridou, A. Petrolini, H.T. Phillips, F. Pierre, M. Pimenta, E. Piotto, T. Podobnik, V. Poireau, M.E. Pol, G. Polok, P. Poropat, V. Pozdniakov, P. Privitera, N. Pukhaeva, A. Pullia, D. Radojicic, S. Ragazzi, H. Rahmani, J. Rames, P.N. Ratoff, A.L. Read, P. Rebecchi, N.G. Redaelli, M. Regler, J. Rehn, D. Reid, P. Reinertsen, R. Reinhardt, P.B. Renton, L.K. Resvanis, F. Richard, J. Ridky, G. Rinaudo, I. Ripp-Baudot, O. Rohne, A. Romero, P. Ronchese, E.I. Rosenberg, P. Rosinsky, P. Roudeau, T. Rovelli, V. Ruhlmann-Kleider, A. Ruiz, H. Saarikko, Y. Sacquin, A. Sadovsky, G. Sajot, J. Salt, D. Sampsonidis, M. Sannino, A. Savoy-Navarro, Ph. Schwemling, B. Schwering, U. Schwickerath, F. Scuri, P. Seager, Y. Sedykh, A.M. Segar, N. Seibert, R. Sekulin, G. Sette, R.C. Shellard, M. Siebel, L. Simard, F. Simonetto, A.N. Sisakian, G. Smadja, O. Smirnova, G.R. Smith, O. Solovianov, A. Sopczak, R. Sosnowski, T. Spassov, E. Spiriti, S. Squarcia, C. Stanescu, M. Stanitzki, K. Stevenson, A. Stocchi, J. Strauss, R. Strub, B. Stugu, M. Szczekowski, M. Szeptycka, T. Tabarelli, A. Taffard, F. Tegenfeldt, F. Terranova, J. Timmermans, N. Tinti, L.G. Tkatchev, M. Tobin, S. Todorova, B. Tome, A. Tonazzo, L. Tortora, P. Tortosa, G. Transtromer, D. Treille, G. Tristram, M. Trochimczuk, C. Troncon, M.-L. Turluer, I.A. Tyapkin, P. Tyapkin, S. Tzamarias, O. Ullaland, V. Uvarov, G. Valenti, E. Vallazza, P. Van Dam, W. Van den Boeck, W.K. Van Doninck, J. Van Eldik, A. Van Lysebetten, N. van Remortel, I. Van Vulpen, G. Vegni, L. Ventura, W. Venus, F. Verbeure, P. Verdier, M. Verlato, L.S. Vertogradov, V. Verzi, D. Vilanova, L. Vitale, E. Vlasov, A.S. Vodopyanov, G. Voulgaris, V. Vrba, H. Wahlen, C. Walck, A.J. Washbrook, C. Weiser, D. Wicke, J.H. Wickens, G.R. Wilkinson, M. Winter, M. Witek, G. Wolf, J. Yi, O. Yushchenko, A. Zalewska, P. Zalewski, D. Zavrtanik, E. Zevgolatakos, N.I. Zimin, A. Zintchenko, Ph. Zoller, G. Zumerle, and M. Zupan

Subjects
Physics, Nuclear and High Energy Physics, Particle physics, 010308 nuclear & particles physics, Branching fraction, High Energy Physics::Phenomenology, Analytical chemistry, Form factor (quantum field theory), 01 natural sciences, Pion, 0103 physical sciences, High Energy Physics::Experiment, 010306 general physics, Bar (unit)
Abstract

A new precise measurement of |V_{cb}| and of the branching ratio BR(\bar{B^0} -> D^{*+} \ell^- \bar{\nu_\ell}) has been performed using a sample of about 5000 semileptonic decays \bar{B^0} -> D^{*+} \ell^- \bar{\nu_\ell}, selected by the DELPHI detector at LEP I by tagging the soft pion from D^{*+} -> D^0 \pi^+. The results are: V_{cb}=(39.0 +/- 1.5 (stat.) ^{+2.5}_{-2.6} (syst. exp.) +/- 1.3 (syst. th.)) x 10^{-3} BR(\bar{B^0} -> D^{*+} \ell^- \bar{\nu_\ell})=(4.70 +/- 0.13 (stat.) ^{+0.36}_{-0.31} (syst. exp.))% The analytic dependences of the differential cross-section and of the Isgur Wise form factor as functions of the variable w = v_{B^0}.v_{D^*} have also been obtained by unfolding the experimental resolution.

Published
2001

39. Search for spontaneous R-parity violation at GeV and 189 GeV

Author

P. Abreu, W. Adam, T. Adye, P. Adzic, Z. Albrecht, T. Alderweireld, G.D. Alekseev, R. Alemany, T. Allmendinger, P.P. Allport, S. Almehed, U. Amaldi, N. Amapane, S. Amato, E. Anashkin, E.G. Anassontzis, P. Andersson, A. Andreazza, S. Andringa, N. Anjos, P. Antilogus, W.-D. Apel, Y. Arnoud, B. Åsman, J.-E. Augustin, A. Augustinus, P. Baillon, A. Ballestrero, P. Bambade, F. Barao, G. Barbiellini, R. Barbier, D.Y. Bardin, G. Barker, A. Baroncelli, M. Battaglia, M. Baubillier, K.-H. Becks, M. Begalli, A. Behrmann, Yu. Belokopytov, K. Belous, N.C. Benekos, A.C. Benvenuti, C. Berat, M. Berggren, L. Berntzon, D. Bertrand, M. Besancon, N. Besson, M.S. Bilenky, D. Bloch, H.M. Blom, L. Bol, M. Bonesini, M. Boonekamp, P.S.L. Booth, G. Borisov, C. Bosio, O. Botner, E. Boudinov, B. Bouquet, T.J.V. Bowcock, I. Boyko, I. Bozovic, M. Bozzo, M. Bracko, P. Branchini, R.A. Brenner, E. Brodet, P. Bruckman, J.-M. Brunet, L. Bugge, P. Buschmann, M. Caccia, M. Calvi, T. Camporesi, V. Canale, F. Carena, L. Carroll, C. Caso, M.V. Castillo Gimenez, A. Cattai, F.R. Cavallo, M. Chapkin, Ph. Charpentier, P. Checchia, G.A. Chelkov, R. Chierici, P. Chliapnikov, P. Chochula, V. Chorowicz, J. Chudoba, K. Cieslik, P. Collins, R. Contri, E. Cortina, G. Cosme, F. Cossutti, M. Costa, H.B. Crawley, D. Crennell, J. Croix, J. Cuevas Maestro, S. Czellar, J. D'Hondt, J. Dalmau, M. Davenport, W. Da Silva, G. Della Ricca, P. Delpierre, N. Demaria, A. De Angelis, W. De Boer, C. De Clercq, B. De Lotto, A. De Min, L. De Paula, H. Dijkstra, L. Di Ciaccio, K. Doroba, M. Dracos, J. Drees, M. Dris, G. Eigen, T. Ekelof, M. Ellert, M. Elsing, J.-P. Engel, M. Espirito Santo, G. Fanourakis, D. Fassouliotis, M. Feindt, J. Fernandez, A. Ferrer, E. Ferrer-Ribas, F. Ferro, A. Firestone, U. Flagmeyer, H. Foeth, E. Fokitis, F. Fontanelli, B. Franek, A.G. Frodesen, R. Fruhwirth, F. Fulda-Quenzer, J. Fuster, D. Gamba, S. Gamblin, M. Gandelman, C. Garcia, C. Gaspar, M. Gaspar, U. Gasparini, Ph. Gavillet, E.N. Gazis, D. Gele, T. Geralis, N. Ghodbane, I. Gil, F. Glege, R. Gokieli, B. Golob, G. Gomez-Ceballos, P. Goncalves, I. Gonzalez Caballero, G. Gopal, L. Gorn, Yu. Gouz, V. Gracco, J. Grahl, E. Graziani, G. Grosdidier, K. Grzelak, J. Guy, C. Haag, F. Hahn, S. Hahn, S. Haider, A. Hallgren, K. Hamacher, K. Hamilton, J. Hansen, F.J. Harris, S. Haug, F. Hauler, V. Hedberg, S. Heising, J.J. Hernandez, P. Herquet, H. Herr, O. Hertz, E. Higon, S.-O. Holmgren, P.J. Holt, S. Hoorelbeke, M. Houlden, J. Hrubec, G.J. Hughes, K. Hultqvist, J.N. Jackson, R. Jacobsson, P. Jalocha, Ch. Jarlskog, G. Jarlskog, P. Jarry, B. Jean-Marie, D. Jeans, E.K. Johansson, P. Jonsson, C. Joram, P. Juillot, L. Jungermann, F. Kapusta, K. Karafasoulis, S. Katsanevas, E.C. Katsoufis, R. Keranen, G. Kernel, B.P. Kersevan, Yu. Khokhlov, B.A. Khomenko, N.N. Khovanski, A. Kiiskinen, B. King, A. Kinvig, N.J. Kjaer, O. Klapp, P. Kluit, P. Kokkinias, V. Kostioukhine, C. Kourkoumelis, O. Kouznetsov, M. Krammer, E. Kriznic, Z. Krumstein, P. Kubinec, M. Kucharczyk, J. Kurowska, J.W. Lamsa, J.-P. Laugier, G. Leder, F. Ledroit, L. Leinonen, A. Leisos, R. Leitner, G. Lenzen, V. Lepeltier, T. Lesiak, M. Lethuillier, J. Libby, W. Liebig, D. Liko, A. Lipniacka, I. Lippi, J.G. Loken, J.H. Lopes, J.M. Lopez, R. Lopez-Fernandez, D. Loukas, P. Lutz, L. Lyons, J. MacNaughton, J.R. Mahon, A. Maio, A. Malek, S. Maltezos, V. Malychev, F. Mandl, J. Marco, R. Marco, B. Marechal, M. Margoni, J.-C. Marin, C. Mariotti, A. Markou, C. Martinez-Rivero, S. Marti i Garcia, J. Masik, N. Mastroyiannopoulos, F. Matorras, C. Matteuzzi, G. Matthiae, F. Mazzucato, M. Mazzucato, M. Mc Cubbin, R. Mc Kay, R. Mc Nulty, E. Merle, C. Meroni, W.T. Meyer, A. Miagkov, E. Migliore, L. Mirabito, W.A. Mitaroff, U. Mjoernmark, T. Moa, M. Moch, K. Moenig, M.R. Monge, J. Montenegro, D. Moraes, P. Morettini, G. Morton, U. Mueller, K. Muenich, M. Mulders, L.M. Mundim, W.J. Murray, B. Muryn, G. Myatt, T. Myklebust, M. Nassiakou, F.L. Navarria, K. Nawrocki, P. Negri, S. Nemecek, N. Neufeld, R. Nicolaidou, P. Niezurawski, M. Nikolenko, V. Nomokonov, A. Nygren, V. Obraztsov, A.G. Olshevski, A. Onofre, R. Orava, K. Osterberg, A. Ouraou, A. Oyanguren, M. Paganoni, S. Paiano, R. Pain, R. Paiva, J. Palacios, H. Palka, Th.D. Papadopoulou, L. Pape, C. Parkes, F. Parodi, U. Parzefall, A. Passeri, O. Passon, L. Peralta, V. Perepelitsa, M. Pernicka, A. Perrotta, C. Petridou, A. Petrolini, H.T. Phillips, F. Pierre, M. Pimenta, E. Piotto, T. Podobnik, V. Poireau, M.E. Pol, G. Polok, P. Poropat, V. Pozdniakov, P. Privitera, N. Pukhaeva, A. Pullia, D. Radojicic, S. Ragazzi, H. Rahmani, A.L. Read, P. Rebecchi, N.G. Redaelli, M. Regler, J. Rehn, D. Reid, R. Reinhardt, P.B. Renton, L.K. Resvanis, F. Richard, J. Ridky, G. Rinaudo, I. Ripp-Baudot, A. Romero, P. Ronchese, E.I. Rosenberg, P. Rosinsky, P. Roudeau, T. Rovelli, V. Ruhlmann-Kleider, A. Ruiz, H. Saarikko, Y. Sacquin, A. Sadovsky, G. Sajot, L. Salmi, J. Salt, D. Sampsonidis, M. Sannino, A. Savoy-Navarro, C. Schwanda, Ph. Schwemling, B. Schwering, U. Schwickerath, F. Scuri, Y. Sedykh, A.M. Segar, R. Sekulin, G. Sette, R.C. Shellard, M. Siebel, L. Simard, F. Simonetto, A.N. Sisakian, G. Smadja, O. Smirnova, G.R. Smith, A. Sokolov, O. Solovianov, A. Sopczak, R. Sosnowski, T. Spassov, E. Spiriti, S. Squarcia, C. Stanescu, M. Stanitzki, A. Stocchi, J. Strauss, R. Strub, B. Stugu, M. Szczekowski, M. Szeptycka, T. Tabarelli, A. Taffard, F. Tegenfeldt, F. Terranova, J. Timmermans, N. Tinti, L.G. Tkatchev, M. Tobin, S. Todorova, B. Tome, A. Tonazzo, L. Tortora, P. Tortosa, D. Treille, G. Tristram, M. Trochimczuk, C. Troncon, M.-L. Turluer, I.A. Tyapkin, P. Tyapkin, S. Tzamarias, O. Ullaland, V. Uvarov, G. Valenti, E. Vallazza, P. Van Dam, W. Van den Boeck, J. Van Eldik, A. Van Lysebetten, N. van Remortel, I. Van Vulpen, G. Vegni, L. Ventura, W. Venus, F. Verbeure, P. Verdier, M. Verlato, L.S. Vertogradov, V. Verzi, D. Vilanova, L. Vitale, E. Vlasov, A.S. Vodopyanov, G. Voulgaris, V. Vrba, H. Wahlen, A.J. Washbrook, C. Weiser, D. Wicke, J.H. Wickens, G.R. Wilkinson, M. Winter, M. Witek, G. Wolf, J. Yi, O. Yushchenko, A. Zalewska, P. Zalewski, D. Zavrtanik, E. Zevgolatakos, N.I. Zimin, A. Zintchenko, Ph. Zoller, G. Zumerle, and M. Zupan

Subjects
Physics, Nuclear and High Energy Physics, Particle physics, Missing energy, 010308 nuclear & particles physics, High Energy Physics::Phenomenology, Parameter space, 01 natural sciences, Chargino, R-parity, 0103 physical sciences, High Energy Physics::Experiment, Limit (mathematics), Nuclear Experiment, 010306 general physics, Lepton
Abstract

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

Published
2001

40. Search for R-parity violation with a coupling at GeV

Author

P. Abreu, W. Adam, T. Adye, P. Adzic, I. Ajinenko, Z. Albrecht, T. Alderweireld, G.D. Alekseev, R. Alemany, T. Allmendinger, P.P. Allport, S. Almehed, U. Amaldi, N. Amapane, S. Amato, E.G. Anassontzis, P. Andersson, A. Andreazza, S. Andringa, P. Antilogus, W.-D. Apel, Y. Arnoud, B. Åsman, J.-E. Augustin, A. Augustinus, P. Baillon, A. Ballestrero, P. Bambade, F. Barao, G. Barbiellini, R. Barbier, D.Y. Bardin, G. Barker, A. Baroncelli, M. Battaglia, M. Baubillier, K.-H. Becks, M. Begalli, A. Behrmann, P. Beilliere, Yu. Belokopytov, N.C. Benekos, A.C. Benvenuti, C. Berat, M. Berggren, L. Berntzon, D. Bertrand, M. Besancon, M.S. Bilenky, M.-A. Bizouard, D. Bloch, H.M. Blom, M. Bonesini, M. Boonekamp, P.S.L. Booth, G. Borisov, C. Bosio, O. Botner, E. Boudinov, B. Bouquet, C. Bourdarios, T.J.V. Bowcock, I. Boyko, I. Bozovic, M. Bozzo, M. Bracko, P. Branchini, R.A. Brenner, P. Bruckman, J.-M. Brunet, L. Bugge, T. Buran, B. Buschbeck, P. Buschmann, S. Cabrera, M. Caccia, M. Calvi, T. Camporesi, V. Canale, F. Carena, L. Carroll, C. Caso, M.V. Castillo Gimenez, A. Cattai, F.R. Cavallo, Ph. Charpentier, P. Checchia, G.A. Chelkov, R. Chierici, P. Chliapnikov, P. Chochula, V. Chorowicz, J. Chudoba, K. Cieslik, P. Collins, R. Contri, E. Cortina, G. Cosme, F. Cossutti, M. Costa, H.B. Crawley, D. Crennell, G. Crosetti, J. Cuevas Maestro, S. Czellar, J. D'Hondt, J. Dalmau, M. Davenport, W. Da Silva, G. Della Ricca, P. Delpierre, N. Demaria, A. De Angelis, W. De Boer, C. De Clercq, B. De Lotto, A. De Min, L. De Paula, H. Dijkstra, L. Di Ciaccio, J. Dolbeau, K. Doroba, M. Dracos, J. Drees, M. Dris, G. Eigen, T. Ekelof, M. Ellert, M. Elsing, J.-P. Engel, M. Espirito Santo, G. Fanourakis, D. Fassouliotis, M. Feindt, J. Fernandez, A. Ferrer, E. Ferrer-Ribas, F. Ferro, A. Firestone, U. Flagmeyer, H. Foeth, E. Fokitis, F. Fontanelli, B. Franek, A.G. Frodesen, R. Fruhwirth, F. Fulda-Quenzer, J. Fuster, A. Galloni, D. Gamba, S. Gamblin, M. Gandelman, C. Garcia, C. Gaspar, M. Gaspar, U. Gasparini, Ph. Gavillet, E.N. Gazis, D. Gele, T. Geralis, L. Gerdyukov, N. Ghodbane, I. Gil, F. Glege, R. Gokieli, B. Golob, G. Gomez-Ceballos, P. Goncalves, I. Gonzalez Caballero, G. Gopal, L. Gorn, Yu. Gouz, V. Gracco, J. Grahl, E. Graziani, P. Gris, G. Grosdidier, K. Grzelak, J. Guy, C. Haag, F. Hahn, S. Hahn, S. Haider, A. Hallgren, K. Hamacher, J. Hansen, F.J. Harris, F. Hauler, V. Hedberg, S. Heising, J.J. Hernandez, P. Herquet, H. Herr, E. Higon, S.-O. Holmgren, P.J. Holt, S. Hoorelbeke, M. Houlden, J. Hrubec, M. Huber, G.J. Hughes, K. Hultqvist, J.N. Jackson, R. Jacobsson, P. Jalocha, R. Janik, Ch. Jarlskog, G. Jarlskog, P. Jarry, B. Jean-Marie, D. Jeans, E.K. Johansson, P. Jonsson, C. Joram, P. Juillot, L. Jungermann, F. Kapusta, K. Karafasoulis, S. Katsanevas, E.C. Katsoufis, R. Keranen, G. Kernel, B.P. Kersevan, Yu. Khokhlov, B.A. Khomenko, N.N. Khovanski, A. Kiiskinen, B. King, A. Kinvig, N.J. Kjaer, O. Klapp, P. Kluit, P. Kokkinias, V. Kostioukhine, C. Kourkoumelis, O. Kouznetsov, M. Krammer, E. Kriznic, Z. Krumstein, P. Kubinec, J. Kurowska, K. Kurvinen, J.W. Lamsa, D.W. Lane, V. Lapin, J.-P. Laugier, R. Lauhakangas, G. Leder, F. Ledroit, L. Leinonen, A. Leisos, R. Leitner, G. Lenzen, V. Lepeltier, T. Lesiak, M. Lethuillier, J. Libby, W. Liebig, D. Liko, A. Lipniacka, I. Lippi, B. Loerstad, J.G. Loken, J.H. Lopes, J.M. Lopez, R. Lopez-Fernandez, D. Loukas, P. Lutz, L. Lyons, J. MacNaughton, J.R. Mahon, A. Maio, A. Malek, S. Maltezos, V. Malychev, F. Mandl, J. Marco, R. Marco, B. Marechal, M. Margoni, J.-C. Marin, C. Mariotti, A. Markou, C. Martinez-Rivero, S. Marti i Garcia, J. Masik, N. Mastroyiannopoulos, F. Matorras, C. Matteuzzi, G. Matthiae, F. Mazzucato, M. Mazzucato, M. Mc Cubbin, R. Mc Kay, R. Mc Nulty, G. Mc Pherson, E. Merle, C. Meroni, W.T. Meyer, E. Migliore, L. Mirabito, W.A. Mitaroff, U. Mjoernmark, T. Moa, M. Moch, R. Moeller, K. Moenig, M.R. Monge, D. Moraes, P. Morettini, G. Morton, U. Mueller, K. Muenich, M. Mulders, C. Mulet-Marquis, L.M. Mundim, R. Muresan, W.J. Murray, B. Muryn, G. Myatt, T. Myklebust, F. Naraghi, M. Nassiakou, F.L. Navarria, K. Nawrocki, P. Negri, N. Neufeld, R. Nicolaidou, B.S. Nielsen, P. Niezurawski, M. Nikolenko, V. Nomokonov, A. Nygren, V. Obraztsov, A.G. Olshevski, A. Onofre, R. Orava, G. Orazi, K. Osterberg, A. Ouraou, A. Oyanguren, M. Paganoni, S. Paiano, R. Pain, R. Paiva, J. Palacios, H. Palka, Th.D. Papadopoulou, L. Pape, C. Parkes, F. Parodi, U. Parzefall, A. Passeri, O. Passon, T. Pavel, M. Pegoraro, L. Peralta, M. Pernicka, A. Perrotta, C. Petridou, A. Petrolini, H.T. Phillips, F. Pierre, M. Pimenta, E. Piotto, T. Podobnik, V. Poireau, M.E. Pol, G. Polok, P. Poropat, V. Pozdniakov, P. Privitera, N. Pukhaeva, A. Pullia, D. Radojicic, S. Ragazzi, H. Rahmani, J. Rames, P.N. Ratoff, A.L. Read, P. Rebecchi, N.G. Redaelli, M. Regler, J. Rehn, D. Reid, P. Reinertsen, R. Reinhardt, P.B. Renton, L.K. Resvanis, F. Richard, J. Ridky, G. Rinaudo, I. Ripp-Baudot, A. Romero, P. Ronchese, E.I. Rosenberg, P. Rosinsky, T. Rovelli, V. Ruhlmann-Kleider, A. Ruiz, H. Saarikko, Y. Sacquin, A. Sadovsky, G. Sajot, J. Salt, D. Sampsonidis, M. Sannino, A. Savoy-Navarro, Ph. Schwemling, B. Schwering, U. Schwickerath, F. Scuri, P. Seager, Y. Sedykh, A.M. Segar, N. Seibert, R. Sekulin, G. Sette, R.C. Shellard, M. Siebel, L. Simard, F. Simonetto, A.N. Sisakian, G. Smadja, N. Smirnov, O. Smirnova, G.R. Smith, A. Sokolov, A. Sopczak, R. Sosnowski, T. Spassov, E. Spiriti, S. Squarcia, C. Stanescu, M. Stanitzki, K. Stevenson, A. Stocchi, J. Strauss, R. Strub, B. Stugu, M. Szczekowski, M. Szeptycka, T. Tabarelli, A. Taffard, F. Tegenfeldt, F. Terranova, J. Timmermans, N. Tinti, L.G. Tkatchev, M. Tobin, S. Todorova, B. Tome, A. Tonazzo, L. Tortora, P. Tortosa, G. Transtromer, D. Treille, G. Tristram, M. Trochimczuk, C. Troncon, M.-L. Turluer, I.A. Tyapkin, P. Tyapkin, S. Tzamarias, O. Ullaland, V. Uvarov, G. Valenti, E. Vallazza, P. Van Dam, W. Van den Boeck, J. Van Eldik, A. Van Lysebetten, N. van Remortel, I. Van Vulpen, G. Vegni, L. Ventura, W. Venus, F. Verbeure, P. Verdier, M. Verlato, L.S. Vertogradov, V. Verzi, D. Vilanova, L. Vitale, E. Vlasov, A.S. Vodopyanov, G. Voulgaris, V. Vrba, H. Wahlen, A.J. Washbrook, C. Weiser, D. Wicke, J.H. Wickens, G.R. Wilkinson, M. Winter, M. Witek, G. Wolf, J. Yi, O. Yushchenko, A. Zalewska, P. Zalewski, D. Zavrtanik, E. Zevgolatakos, N.I. Zimin, A. Zintchenko, Ph. Zoller, G.C. Zucchelli, and G. Zumerle

Subjects
Physics, Nuclear and High Energy Physics, Particle physics, 010308 nuclear & particles physics, High Energy Physics::Phenomenology, Coupling (probability), 01 natural sciences, 7. Clean energy, Standard Model, Chargino, Pair production, R-parity, 0103 physical sciences, Neutralino, High Energy Physics::Experiment, 010306 general physics, Energy (signal processing), Lepton
Abstract

Searches for pair production of gauginos and squarks in e+e- collisions at a centre-of-mass energy of 189 GeV have been performed on data corresponding to an integrated luminosity of 158 pb^{-1} collected by the DELPHI detector at LEP. The data were analyzed under the assumption of non-conservation of R-parity through a single dominant Ubar Dbar Dbar coupling between squarks and quarks. Typical final states contain between 4 and 10 jets with or without additional leptons. No excess of data above Standard Model expectations was observed. The results were used to constrain domains of the MSSM parameter space and derive limits on the masses of supersymmetric particles. The following mass limits at 95% CL were obtained from these searches: neutralino mass: m_{\tilde{\chi^0_{1}}} \geq 32 GeV chargino mass: m_{\tilde{\chi^+_{1}}} \geq 94 GeV stop and sbottom mass (indirect decay) with \Delta M > 5 GeV: m_{\tilde{t_1}} \geq 74 GeV, for \Phi_{mix}=0 rad m_{\tilde{t_1}} \geq 59 GeV, for \Phi_{mix}=0.98 rad m_{\tilde{b_1}} \geq 72 GeV, for \Phi_{mix}=0 rad. The angle \phi_{mix} is the mixing angle between left and right handed quarks.

Published
2001

41. Measurement of the Mass and Width of the W Boson in e+ e- Collisions at s**(1/2) = 161-GeV - 209-GeV

Author

J. ABDALLAH, P. ABREU, W. ADAM, P. ADZIC, T. ALBRECHT, R. ALEMANY FERNANDEZ, T. ALLMENDINGER, P. P. ALLPORT, U. AMALDI, N. AMAPANE, S. AMATO, E. ANASHKIN, A. ANDREAZZA, S. ANDRINGA, N. ANJOS, P. ANTILOGUS, W. D. APEL, Y. ARNOUD, S. ASK, B. ASMAN, J. E. AUGUSTIN, A. AUGUSTINUS, P. BAILLON, A. BALLESTRERO, P. BAMBADE, R. BARBIER, D. BARDIN, G. J. BARKER, A. BARONCELLI, M. BATTAGLIA, M. BAUBILLIER, K. H. BECKS, M. BEGALLI, A. BEHRMANN, E. BEN HAIM, N. BENEKOS, A. BENVENUTI, C. BERAT, M. BERGGREN, D. BERTRAND, M. BESANCON, N. BESSON, D. BLOCH, M. BLOM, M. BLUJ, M. BONESINI, M. BOONEKAMP, P. S. L. BOOTH, G. BORISOV, O. BOTNER, B. BOUQUET, T. J. V. BOWCOCK, I. BOYKO, M. BRACKO, R. BRENNER, E. BRODET, P. BRUCKMAN, J. M. BRUNET, B. BUSCHBECK, P. BUSCHMANN, M. CALVI, T. CAMPORESI, V. CANALE, F. CARENA, N. CASTRO, F. CAVALLO, M. CHAPKIN, P.H. CHARPENTIER, P. CHECCHIA, R. CHIERICI, P. CHLIAPNIKOV, J. CHUDOBA, S. U. CHUNG, K. CIESLIK, P. COLLINS, R. CONTRI, G. COSME, F. COSSUTTI, M. J. COSTA, D. CRENNELL, J. CUEVAS, J. D’HONDT, T. DA SILVA, W. DA SILVA, G. DELLA RICCA, A. DE ANGELIS, W. DE BOER, C. DE CLERCQ, B. DE LOTTO, N. DE MARIA, A. DE MIN, L. DE PAULA, L. DI CIACCIO, A. DI SIMONE, K. DOROBA, J. DREES, G. EIGEN, T. EKELOF, M. ELLERT, M. ELSING, M. C. ESPIRITO SANTO, G. FANOURAKIS, D. FASSOULIOTIS, M. FEINDT, J. FERNANDEZ, A. FERRER, F. FERRO, U. FLAGMEYER, H. FOETH, E. FOKITIS, F. FULDA QUENZER, J. FUSTER, M. GANDELMAN, C. GARCIA, P.H. GAVILLET, E. GAZIS, R. GOKIELI, B. GOLOB, G. GOMEZ CEBALLOS, P. GONCALVES, E. GRAZIANI, G. GROSDIDIER, K. GRZELAK, J. GUY, C. HAAG, A. HALLGREN, K. HAMACHER, K. HAMILTON, S. HAUG, F. HAULER, V. HEDBERG, M. HENNECKE, J. HOFFMAN, S. O. HOLMGREN, P. J. HOLT, M. A. HOULDEN, J. N. JACKSON, G. JARLSKOG, P. JARRY, D. JEANS, E. K. JOHANSSON, P. JONSSON, C. JORAM, L. JUNGERMANN, F. KAPUSTA, S. KATSANEVAS, E. KATSOUFIS, G. KERNEL, B. P. KERSEVAN, U. KERZEL, B. T. KING, N. J. KJAER, P. KLUIT, P. KOKKINIAS, C. KOURKOUMELIS, O. KOUZNETSOV, Z. KRUMSTEIN, M. KUCHARCZYK, J. LAMSA, G. LEDER, F. LEDROIT, L. LEINONEN, R. LEITNER, J. LEMONNE, V. LEPELTIER, T. LESIAK, W. LIEBIG, D. LIKO5, A. LIPNIACKA, J. H. LOPES, J. M. LOPEZ, D. LOUKAS, P. LUTZ, L. LYONS, J. MACNAUGHTON, A. MALEK, S. MALTEZOS, F. MANDL, J. MARCO, R. MARCO, B. MARECHAL, M. MARGONI, J. C. MARIN, C. MARIOTTI, A. MARKOU, C. MARTINEZ RIVERO, J. MASIK, N. MASTROYIANNOPOULOS, F. MATORRAS, C. MATTEUZZI, F. MAZZUCATO, M. MAZZUCATO, R. MC NULTY, C. MERONI, E. MIGLIORE, W. MITAROFF, U. MJOERNMARK, T. MOA, M. MOCH, K. MOENIG, R. MONGE, J. MONTENEGRO, D. MORAES, S. MORENO, P. MORETTINI, U. MUELLER, K. MUENICH, M. MULDERS, L. MUNDIM, W. MURRAY, B. MURYN, G. MYATT, T. MYKLEBUST, M. NASSIAKOU, K. NAWROCKI, S. NEMECEK, R. NICOLAIDOU, M. NIKOLENKO, A. OBLAKOWSKA MUCHA, V. OBRAZTSOV, A. OLSHEVSKI, A. ONOFRE, R. ORAVA, K. OSTERBERG, A. OURAOU, A. OYANGUREN, M. PAGANONI, J. P. PALACIOS, H. PALKA, T.H. D. PAPADOPOULOU, L. PAPE, C. PARKES, F. PARODI, U. PARZEFALL, A. PASSERI, O. PASSON, L. PERALTA, V. PEREPELITSA, A. PETROLINI, J. PIEDRA, L. PIERI, F. PIERRE, M. PIMENTA, E. PIOTTO, T. PODOBNIK, V. POIREAU, M. E. POL, G. POLOK, V. POZDNIAKOV, N. PUKHAEVA, A. PULLIA, D. RADOJICIC, P. REBECCHI, J. REHN, D. REID, R. REINHARDT, P. RENTON, F. RICHARD, J. RIDKY, M. RIVERO, D. RODRIGUEZ, A. ROMERO, P. RONCHESE, P. ROUDEAU, V. RUHLMANN KLEIDER, D. RYABTCHIKOV, A. SADOVSKY, L. SALMI, J. SALT, C. SANDER, A. SAVOY NAVARRO, U. SCHWICKERATH, R. SEKULIN, M. SIEBEL, A. SISAKIAN, G. SMADJA, O. SMIRNOVA, A. SOKOLOV, A. SOPCZAK, R. SOSNOWSKI, T. SPASSOV, M. STANITZKI, A. STOCCHI, J. STRAUSS, B. STUGU, M. SZCZEKOWSKI, M. SZEPTYCKA, T. SZUMLAK, T. TABARELLI, F. TEGENFELDT, J. TIMMERMANS, L. TKATCHEV, M. TOBIN, S. TODOROVOVA, B. TOME, A. TONAZZO, P. TORTOSA, P. TRAVNICEK, D. TREILLE, G. TRISTRAM, M. TROCHIMCZUK, C. TRONCON, M. L. TURLUER, I. A. TYAPKIN, S. TZAMARIAS, V. UVAROV, G. VALENTI, P. VAN DAM, J. VAN ELDIK, N. VAN REMORTEL, I. VAN VULPEN, G. VEGNI, F. VELOSO, W. VENUS, P. VERDIER, Y.U. L. VERTOGRADOVA, V. VERZI, D. VILANOVA, L. VITALE, V. VRBA, H. WAHLEN, A. J. WASHBROOK, C. WEISER, D. WICKE, J. WICKENS, G. WILKINSON, M. WINTER, M. WITEK, O. YUSHCHENKO, A. ZALEWSKA, P. ZALEWSKI, D. ZAVRTANIK, V. ZHURAVLOV, N. I. ZIMIN, A. ZINTCHENKO, M. ZUPAN, NAVARRIA, FRANCESCO LUIGI, PAIANO, SIMONE, PERROTTA, ANDREA, ROVELLI, TIZIANO, J. ABDALLAH, P. ABREU, W. ADAM, P. ADZIC, T. ALBRECHT, R. ALEMANY-FERNANDEZ, T. ALLMENDINGER, P. P. ALLPORT, U. AMALDI, N. AMAPANE, S. AMATO, E. ANASHKIN, A. ANDREAZZA, S. ANDRINGA, N. ANJOS, P. ANTILOGUS, W-D. APEL, Y. ARNOUD, S. ASK, B. ASMAN, J. E. AUGUSTIN, A. AUGUSTINUS, P. BAILLON, A. BALLESTRERO, P. BAMBADE, R. BARBIER, D. BARDIN, G. J. BARKER, A. BARONCELLI, M. BATTAGLIA, M. BAUBILLIER, K-H. BECKS, M. BEGALLI, A. BEHRMANN, E. BEN-HAIM, N. BENEKOS, A. BENVENUTI, C. BERAT, M. BERGGREN, D. BERTRAND, M. BESANCON, N. BESSON, D. BLOCH, M. BLOM, M. BLUJ, M. BONESINI, M. BOONEKAMP, P. S. L. BOOTH, G. BORISOV, O. BOTNER, B. BOUQUET, T. J. V. BOWCOCK, I. BOYKO, M. BRACKO, R. BRENNER, E. BRODET, P. BRUCKMAN, J. M. BRUNET, B. BUSCHBECK, P. BUSCHMANN, M. CALVI, T. CAMPORESI, V. CANALE, F. CARENA, N. CASTRO, F. CAVALLO, M. CHAPKIN, PH. CHARPENTIER, P. CHECCHIA, R. CHIERICI, P. CHLIAPNIKOV, J. CHUDOBA, S. U. CHUNG, K. CIESLIK, P. COLLINS, R. CONTRI, G. COSME, F. COSSUTTI, M. J. COSTA, D. CRENNELL, J. CUEVAS, J. D’HONDT, T. DA SILVA, W. DA SILVA, G. DELLA RICCA, A. DE ANGELIS, W. DE BOER, C. DE CLERCQ, B. DE LOTTO, N. DE MARIA, A. DE MIN, L. DE PAULA, L. DI CIACCIO, A. DI SIMONE, K. DOROBA, J. DREES, G. EIGEN, T. EKELOF, M. ELLERT, M. ELSING, M. C. ESPIRITO SANTO, G. FANOURAKIS, D. FASSOULIOTIS, M. FEINDT, J. FERNANDEZ, A. FERRER, F. FERRO, U. FLAGMEYER, H. FOETH, E. FOKITIS, F. FULDA-QUENZER, J. FUSTER, M. GANDELMAN, C. GARCIA, PH. GAVILLET, E. GAZIS, R. GOKIELI, B. GOLOB, G. GOMEZ-CEBALLOS, P. GONCALVES, E. GRAZIANI, G. GROSDIDIER, K. GRZELAK, J. GUY, C. HAAG, A. HALLGREN, K. HAMACHER, K. HAMILTON, S. HAUG, F. HAULER, V. HEDBERG, M. HENNECKE, J. HOFFMAN, S-O. HOLMGREN, P. J. HOLT, M. A. HOULDEN, J. N. JACKSON, G. JARLSKOG, P. JARRY, D. JEANS, E. K. JOHANSSON, P. JONSSON, C. JORAM, L. JUNGERMANN, F. KAPUSTA, S. KATSANEVAS, E. KATSOUFIS, G. KERNEL, B. P. KERSEVAN, U. KERZEL, B. T. KING, N. J. KJAER, P. KLUIT, P. KOKKINIAS, C. KOURKOUMELIS, O. KOUZNETSOV, Z. KRUMSTEIN, M. KUCHARCZYK, J. LAMSA, G. LEDER, F. LEDROIT, L. LEINONEN, R. LEITNER, J. LEMONNE, V. LEPELTIER, T. LESIAK, W. LIEBIG, D. LIKO5, A. LIPNIACKA, J. H. LOPES, J. M. LOPEZ, D. LOUKAS, P. LUTZ, L. LYONS, J. MACNAUGHTON, A. MALEK, S. MALTEZOS, F. MANDL, J. MARCO, R. MARCO, B. MARECHAL, M. MARGONI, J-C. MARIN, C. MARIOTTI, A. MARKOU, C. MARTINEZ-RIVERO, J. MASIK, N. MASTROYIANNOPOULOS, F. MATORRAS, C. MATTEUZZI, F. MAZZUCATO, M. MAZZUCATO, R. MC NULTY, C. MERONI, E. MIGLIORE, W. MITAROFF, U. MJOERNMARK, T. MOA, M. MOCH, K. MOENIG, R. MONGE, J. MONTENEGRO, D. MORAES, S. MORENO, P. MORETTINI, U. MUELLER, K. MUENICH, M. MULDERS, L. MUNDIM, W. MURRAY, B. MURYN, G. MYATT, T. MYKLEBUST, M. NASSIAKOU, F. NAVARRIA, K. NAWROCKI, S. NEMECEK, R. NICOLAIDOU, M. NIKOLENKO, A. OBLAKOWSKA-MUCHA, V. OBRAZTSOV, A. OLSHEVSKI, A. ONOFRE, R. ORAVA, K. OSTERBERG, A. OURAOU, A. OYANGUREN, M. PAGANONI, S. PAIANO, J. P. PALACIOS, H. PALKA, TH. D. PAPADOPOULOU, L. PAPE, C. PARKES, F. PARODI, U. PARZEFALL, A. PASSERI, O. PASSON, L. PERALTA, V. PEREPELITSA, A. PERROTTA, A. PETROLINI, J. PIEDRA, L. PIERI, F. PIERRE, M. PIMENTA, E. PIOTTO, T. PODOBNIK, V. POIREAU, M. E. POL, G. POLOK, V. POZDNIAKOV, N. PUKHAEVA, A. PULLIA, D. RADOJICIC, P. REBECCHI, J. REHN, D. REID, R. REINHARDT, P. RENTON, F. RICHARD, J. RIDKY, M. RIVERO, D. RODRIGUEZ, A. ROMERO, P. RONCHESE, P. ROUDEAU, T. ROVELLI, V. RUHLMANN-KLEIDER, D. RYABTCHIKOV, A. SADOVSKY, L. SALMI, J. SALT, C. SANDER, A. SAVOY-NAVARRO, U. SCHWICKERATH, R. SEKULIN, M. SIEBEL, A. SISAKIAN, G. SMADJA, O. SMIRNOVA, A. SOKOLOV, A. SOPCZAK, R. SOSNOWSKI, T. SPASSOV, M. STANITZKI, A. STOCCHI, J. STRAUSS, B. STUGU, M. SZCZEKOWSKI, M. SZEPTYCKA, T. SZUMLAK, T. TABARELLI, F. TEGENFELDT, J. TIMMERMANS, L. TKATCHEV, M. TOBIN, S. TODOROVOVA, B. TOME, A. TONAZZO, P. TORTOSA, P. TRAVNICEK, D. TREILLE, G. TRISTRAM, M. TROCHIMCZUK, C. TRONCON, M-L. TURLUER, I. A. TYAPKIN, S. TZAMARIAS, V. UVAROV, G. VALENTI, P. VAN DAM, J. VAN ELDIK, N. VAN REMORTEL, I. VAN VULPEN, G. VEGNI, F. VELOSO, W. VENUS, P. VERDIER, YU. L. VERTOGRADOVA, V. VERZI, D. VILANOVA, L. VITALE, V. VRBA, H. WAHLEN, A. J. WASHBROOK, C. WEISER, D. WICKE, J. WICKENS, G. WILKINSON, M. WINTER, M. WITEK, O. YUSHCHENKO, A. ZALEWSKA, P. ZALEWSKI, D. ZAVRTANIK, V. ZHURAVLOV, N. I. ZIMIN, A. ZINTCHENKO, and M. ZUPAN

Subjects
E+E, W-BOSON, High Energy Physics::Experiment, LEP, MASS, Nuclear Experiment, DELPHI
Abstract

A measurement of the W boson mass and width has been performed by the DELPHI collaboration using the data collected during the full LEP2 programme (1996–2000). The data sample has an integrated luminosity of 660 pb-1 and was collected over a range of centre-of-mass energies from 161 to 209 GeV. Results are obtained by applying the method of direct reconstruction of the mass of the W from its decay products in both the W+W-→ℓν̄ℓqq̄’ and W+W-→qq̄’q̄q’ channels. The W mass result for the combined data set is $M_W = 80.336 pm0.055 ({text{Stat.}}) pm0.028 ({text{Syst.}}) pm0.025 ({text{FSI}}) pm0.009 ({text{LEP}}) text{GeV}/c^2, $where FSI represents the uncertainty due to final state interaction effects in the qq̄’q̄q’ channel, and LEP represents that arising from the knowledge of the collision energy of the accelerator. The combined value for the W width is ${Gamma_{W}} = 2.404 pm0.140 ({text{Stat.}}) pm0.077 ({text{Syst.}}) pm0.065 ({text{FSI}}) text{GeV}/c^2. $These results supersede all values previously published by the DELPHI collaboration. This paper is dedicated to the memory of Carlo Caso.

Published
2008

42. Higgs boson searches in CP-conserving and CP-violating MSSM scenarios with the DELPHI detector

Author

P. Bambade, R. Alemany-Fernandez, G. Leder, F. Pierre, B. Åsman, W. Da Silva, W. A. Mitaroff, D. Crennell, F. Mandl, Valeriy Pozdniakov, P. J. Holt, U. Mjoernmark, M. Trochimczuk, F. Richard, Ulrich Parzefall, Per Jönsson, M. Rivero, G. Smadja, M. Tobin, A. Savoy-Navarro, S. Moreno, P. B. Renton, Marco Battaglia, A. C. Taffard, B. Marechal, G. Cosme, M. Nassiakou, Rosy Nicolaidou, Marta Calvi, B. Tome, P. Antilogus, J. Rehn, J. Hoffman, T. J. V. Bowcock, J. Dalmau, G. Vegni, A. Malek, Marco Costa, Maria Elena Pol, Rupert Leitner, S. Katsanevas, Diego Rodriguez, M. Witek, F. Kapusta, P. Abreu, Christine Kourkoumelis, D. Bertrand, Jiri Chudoba, E. Piotto, G. Grosdidier, Paolo Morettini, P. P. Allport, G. Polok, B. Stugu, M. Gandelman, M. A. Winter, V. Poireau, Keith Hamilton, I. A. Tyapkin, N. Pukhaeva, L. Di Ciaccio, Luiz Mundim, V. Verzi, Chiara Mariotti, Krzysztof Nawrocki, Stavros Maltezos, V. Ruhlmann-Kleider, Javier Cuevas, A. Petrolini, Daniel Wicke, U. Kerzel, Juan Fuster, A. Ballestrero, U. Mueller, K. Muenich, N. Anjos, B. De Lotto, I. van Vulpen, Fabio Cossutti, Ernesto Migliore, P. D. Johansson, D. Ryabtchikov, B. Buschbeck, S. Ask, Agnieszka Oblakowska-Mucha, Paulo J. S. Gonçalves, P. Van Dam, J. Montenegro, Igor Boyko, Nikolaos P. Mastroyiannopoulos, J. W. Lamsa, Sandra Amato, L. Berntzon, L. Salmi, C. Haag, N. Van Remortel, Christian Sander, Louis Lyons, A. Di Simone, T. Podobnik, O. Kouznetsov, L. Pieri, P.S.L. Booth, Daniel Jeans, Francesca Romana Cavallo, T. Lesiak, V. Obraztsov, R. Sosnowski, A. Passeri, Oxana Smirnova, R. Monge, H. Wahlen, J. E. Augustin, L. G. Tkatchev, S. Tzamarias, S. Todorovova, A. G. Olshevski, T. Allmendinger, G. Wilkinson, D. Y. Bardin, A. Behrmann, Maurizio Bonesini, F. Tegenfeldt, M. Pimenta, Roberto Chierici, Gary John Barker, C. Martinez-Rivero, Wolfgang Adam, Klaus Hamacher, M. Berggren, U. Schwickerath, K. H. Becks, C. Matteuzzi, T. Tabarelli, Barry King, J. H. Wickens, B. Muryn, Marco Paganoni, Francesco Navarria, Pablo Tortosa, A. Zintchenko, J-C. Marin, Evangelos Gazis, M. L. Turluer, D. Reid, J. P. Palacios, A. Stocchi, Jalal Abdallah, F. Fulda-Quenzer, P. V. Chliapnikov, E. C. Katsoufis, Maarten Boonekamp, P. Bruckman, G. Kernel, L. De Paula, E. Ben-Haim, W. Liebig, Tord Ekelof, C. De Clercq, P. Verdier, J. Van Eldik, E. Brodet, A. Zalewska, Patrick Jarry, O. Yushchenko, Klaus Moenig, P. Buschmann, R. Sekulin, A. Andreazza, W. J. Murray, M. Hennecke, J. Timmermans, J. Masik, F. Ledroit, V. Zhuravlov, P. Roudeau, V. Perepelitsa, B. Bouquet, M. A. Houlden, Jacques Lemonne, T. da Silva, T. Myklebust, Demetrios Loukas, E. Graziani, L. Jungermann, J. M. Brunet, H. Foeth, Paul Baillon, Alexander Lincoln Read, Ugo Amaldi, L. Vitale, R. Orava, Georgios Fanourakis, M. Szeptycka, Marc Besancon, M. Blom, Paolo Ronchese, W. De Boer, M. Stanitzki, Luis Peralta, A. De Angelis, A. J. Washbrook, T. Moa, Francisco Matorras, Th D. Papadopoulou, G. Eigen, N. J. Kjaer, M. Nikolenko, A. Pullia, M. Zupan, S. Haug, G. Valenti, D. Fassouliotis, P. Collins, Nicola Amapane, P. Lutz, M. Mazzucato, Tomasz Szumlak, Filipe Veloso, Tiziano Camporesi, T. Albrecht, Nathalie Besson, Oliver Passon, B. Golob, Antonio Ferrer, Daniel Bloch, Antonio Onofre, Vincent Hedberg, A. Markou, Marek Szczekowski, Richard Brenner, Krzysztof Doroba, Ahmimed Ouraou, Chiara Meroni, A. Romero, Andre Augustinus, E. K. Johansson, Tiziano Rovelli, Michal Bluj, G. Borisov, Petar Adzic, K. Osterberg, Marcin Kucharczyk, Peter Kluit, F. Mazzucato, S. O. Holmgren, R. Reinhardt, Mattias Ellert, C. Weiser, Markus Elsing, Andrea Perrotta, Y. Arnoud, E. Anashkin, N. Benekos, Luc Pape, R. Mc Nulty, Corinne Berat, Olga Botner, Alberto Benvenuti, P. Tyapkin, Carmen García, J. Piedra, Fabrizio Ferro, A. Oyanguren, M. Baubillier, V. Canale, Dietrich Liko, F. Parodi, A. Tonazzo, G. Della Ricca, P. Rebecchi, G. Tristram, Guillelmo Gomez-Ceballos, José Salt, Ph. Charpentier, J. H. Lopes, F. Hauler, R. Gokieli, Sofia Andringa, L. Leinonen, K. Cieslik, Petr Travnicek, M. Moch, M. Bračko, K. Grzelak, Piotr Zalewski, Allan Hallgren, Antonio Baroncelli, H. Palka, Clara Troncon, V.A. Uvarov, Daniel Treille, Jose R. Fernandez, Andre Sopczak, A. N. Sisakian, A. Sadovsky, N. I. Zimin, D. Moraes, J. N. Jackson, J. Ridky, G. Myatt, Nuno Filipe Castro, J. Rames, Marcia Begalli, P. Kokkinias, C. Parkes, J. M. Lopez, Z. Krumstein, R. Contri, S. Paiano, A. De Min, V. Lepeltier, M. Siebel, Borut Paul Kerševan, Paolo Checchia, U. Flagmeyer, Ph. Gavillet, J. MacNaughton, S. U. Chung, N. De Maria, H. Herr, Josef Strauss, Anna Lipniacka, M. Feindt, M. Espirito Santo, W. Venus, M. Chapkin, T. Spassov, Vaclav Vrba, D. Zavrtanik, C. Joram, J. Drees, J. Guy, R. Barbier, Göran Jarlskog, W. D. Apel, F. Carena, Rafael Marco, Jesus Marco, Jorgen D'Hondt, D. Vilanova, Martijn Mulders, Martino Margoni, E. Fokitis, Andrey Sokolov, Abdallah, J, Abreu, P, Adam, W, Adzic, P, Albrecht, T, Alemany Fernandez, R, Allmendinger, T, Allport, P, Amaldi, U, Amapane, N, Amato, S, Anashkin, E, Andreazza, A, Andringa, S, Anjos, N, Antilogus, P, Apel, W, Arnoud, Y, Ask, S, Asman, B, Augustin, J, Augustinus, A, Baillon, P, Ballestrero, A, Bambade, P, Barbier, R, Bardin, D, Barker, G, Baroncelli, A, Battaglia, M, Baubillier, M, Becks, K, Begalli, M, Behrmann, A, Ben Haim, E, Benekos, N, Benvenuti, A, Berat, C, Berggren, M, Berntzon, L, Bertrand, D, Besancon, M, Besson, N, Bloch, D, Blom, M, Bluj, M, Bonesini, M, Boonekamp, M, Booth, P, Borisov, G, Botner, O, Bouquet, B, Bowcock, T, Boyko, I, Bracko, M, Brenner, R, Brodet, E, Bruckman, P, Brunet, J, Buschbeck, B, Buschmann, P, Calvi, M, Camporesi, T, Canale, V, Carena, F, Castro, N, Cavallo, F, Chapkin, M, Charpentier, P, Checchia, P, Chierici, R, Chliapnikov, P, Chudoba, J, Chung, S, Cieslik, K, Collins, P, Contri, R, Cosme, G, Cossutti, F, Costa, M, Crennell, D, Cuevas, J, D'Hondt, J, Dalmau, J, Da Silva, T, Da Silva, W, Della Ricca, G, De Angelis, A, De Boer, W, De Clercq, C, De Lotto, B, De Maria, N, De Min, A, De Paula, L, Di Ciaccio, L, Di Simone, A, Doroba, K, Drees, J, Eigen, G, Ekelof, T, Ellert, M, Elsing, M, Espirito Santo, M, Fanourakis, G, Fassouliotis, D, Feindt, M, Fernandez, J, Ferrer, A, Ferro, F, Flagmeyer, U, Foeth, H, Fokitis, E, Fulda Quenzer, F, Fuster, J, Gandelman, M, Garcia, C, Gavillet, P, Gazis, E, Gokieli, R, Golob, B, Gomez Ceballos, G, Goncalves, P, Graziani, E, Grosdidier, G, Grzelak, K, Guy, J, Haag, C, Hallgren, A, Hamacher, K, Hamilton, K, Haug, S, Hauler, F, Hedberg, V, Hennecke, M, Herr, H, Hoffman, J, Holmgren, S, Holt, P, Houlden, M, Jackson, J, Jarlskog, G, Jarry, P, Jeans, D, Johansson, E, Johansson, P, Jonsson, P, Joram, C, Jungermann, L, Kapusta, F, Katsanevas, S, Katsoufis, E, Kernel, G, Kersevan, B, Kerzel, U, King, B, Kjaer, N, Kluit, P, Kokkinias, P, Kourkoumelis, C, Kouznetsov, O, Krumstein, Z, Kucharczyk, M, Lamsa, J, Leder, G, Ledroit, F, Leinonen, L, Leitner, R, Lemonne, J, Lepeltier, V, Lesiak, T, Liebig, W, Liko, D, Lipniacka, A, Lopes, J, Lopez, J, Loukas, D, Lutz, P, Lyons, L, Macnaughton, J, Malek, A, Maltezos, S, Mandl, F, Marco, J, Marco, R, Marechal, B, Margoni, M, Marin, J, Mariotti, C, Markou, A, Martinez Rivero, C, Masik, J, Mastroyiannopoulos, N, Matorras, F, Matteuzzi, C, Mazzucato, F, Mazzucato, M, Mc Nulty, R, Meroni, C, Migliore, E, Mitaroff, W, Mjoernmark, U, Moa, T, Moch, M, Moenig, K, Monge, R, Montenegro, J, Moraes, D, Moreno, S, Morettini, P, Mueller, U, Muenich, K, Mulders, M, Mundim, L, Murray, W, Muryn, B, Myatt, G, Myklebust, T, Nassiakou, M, Navarria, F, Nawrocki, K, Nicolaidou, R, Nikolenko, M, Oblakowska Mucha, A, Obraztsov, V, Olshevski, A, Onofre, A, Orava, R, Osterberg, K, Ouraou, A, Oyanguren, A, Paganoni, M, Paiano, S, Palacios, J, Palka, H, Papadopoulou, T, Pape, L, Parkes, C, Parodi, F, Parzefall, U, Passeri, A, Passon, O, Peralta, L, Perepelitsa, V, Perrotta, A, Petrolini, A, Piedra, J, Pieri, L, Pierre, F, Pimenta, M, Piotto, E, Podobnik, T, Poireau, V, Pol, M, Polok, G, Pozdniakov, V, Pukhaeva, N, Pullia, A, Rames, J, Read, A, Rebecchi, P, Rehn, J, Reid, D, Reinhardt, R, Renton, P, Richard, F, Ridky, J, Rivero, M, Rodriguez, D, Romero, A, Ronchese, P, Roudeau, P, Rovelli, T, Ruhlmann Kleider, V, Ryabtchikov, D, Sadovsky, A, Salmi, L, Salt, J, Sander, C, Savoy Navarro, A, Schwickerath, U, Sekulin, R, Siebel, M, Sisakian, A, Smadja, G, Smirnova, O, Sokolov, A, Sopczak, A, Sosnowski, R, Spassov, T, Stanitzki, M, Stocchi, A, Strauss, J, Stugu, B, Szczekowski, M, Szeptycka, M, Szumlak, T, TABARELLI DE FATIS, T, Taffard, A, Tegenfeldt, F, Timmermans, J, Tkatchev, L, Tobin, M, Todorovova, S, Tome, B, Tonazzo, A, Tortosa, P, Travnicek, P, Treille, D, Tristram, G, Trochimczuk, M, Troncon, C, Turluer, M, Tyapkin, I, Tyapkin, P, Tzamarias, S, Uvarov, V, Valenti, G, Van Dam, P, Van Eldik, J, Van Remortel, N, Van Vulpen, I, Vegni, G, Veloso, F, Venus, W, Verdier, P, Verzi, V, Vilanova, D, Vitale, L, Vrba, V, Wahlen, H, Washbrook, A, Weiser, C, Wicke, D, Wickens, J, Wilkinson, G, Winter, M, Witek, M, Yushchenko, O, Zalewska, A, Zalewski, P, Zavrtanik, D, Zhuravlov, V, Zimin, N, Zintchenko, A, Zupan, M, Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS), Laboratoire de l'Accélérateur Linéaire (LAL), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut de Physique Nucléaire de Lyon (IPNL), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Département d'Astrophysique, de physique des Particules, de physique Nucléaire et de l'Instrumentation Associée (DAPNIA), Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Département Recherches Subatomiques (DRS-IPHC), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), APC - Neutrinos, Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-AstroParticule et Cosmologie (APC (UMR_7164)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), AstroParticule et Cosmologie (APC (UMR_7164)), DELPHI, Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC)-AstroParticule et Cosmologie (APC (UMR_7164)), Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Cossutti, F., DELLA RICCA, Giuseppe, Vitale, Lorenzo, Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7), J. ABDALLAH, P. ABREU, W. ADAM, P. ADZIC, T. ALBRECHT, R. ALEMANY-FERNANDEZ, T. ALLMENDINGER, P. P. ALLPORT, U. AMALDI, N. AMAPANE, S. AMATO, E. ANASHKIN, A. ANDREAZZA, S. ANDRINGA, N. ANJOS, P. ANTILOGUS, W-D. APEL, Y. ARNOUD, S. ASK, B. ASMAN, J. E. AUGUSTIN, A. AUGUSTINUS, P. BAILLON, A. BALLESTRERO, P. BAMBADE, R. BARBIER, D. BARDIN, G. J. BARKER, A. BARONCELLI, M. BATTAGLIA, M. BAUBILLIER, K-H. BECKS, M. BEGALLI, A. BEHRMANN, E. BEN-HAIM, N. BENEKOS, A. BENVENUTI, C. BERAT, M. BERGGREN, D. BERTRAND, M. BESANCON, N. BESSON, D. BLOCH, M. BLOM, M. BLUJ, M. BONESINI, M. BOONEKAMP, P. S. L. BOOTH, G. BORISOV, O. BOTNER, B. BOUQUET, T. J. V. BOWCOCK, I. BOYKO, M. BRACKO, R. BRENNER, E. BRODET, P. BRUCKMAN, J. M. BRUNET, B. BUSCHBECK, P. BUSCHMANN, M. CALVI, T. CAMPORESI, V. CANALE, F. CARENA, N. CASTRO, F. CAVALLO, M. CHAPKIN, PH. CHARPENTIER, P. CHECCHIA, R. CHIERICI, P. CHLIAPNIKOV, J. CHUDOBA, S. U. CHUNG, K. CIESLIK, P. COLLINS, R. CONTRI, G. COSME, F. COSSUTTI, M. J. COSTA, D. CRENNELL, J. CUEVAS, J. D’HONDT, T. DA SILVA, W. DA SILVA, G. DELLA RICCA, A. DE ANGELIS, W. DE BOER, C. DE CLERCQ, B. DE LOTTO, N. DE MARIA, A. DE MIN, L. DE PAULA, L. DI CIACCIO, A. DI SIMONE, K. DOROBA, J. DREES, G. EIGEN, T. EKELOF, M. ELLERT, M. ELSING, M. C. ESPIRITO SANTO, G. FANOURAKIS, D. FASSOULIOTIS, M. FEINDT, J. FERNANDEZ, A. FERRER, F. FERRO, U. FLAGMEYER, H. FOETH, E. FOKITIS, F. FULDA-QUENZER, J. FUSTER, M. GANDELMAN, C. GARCIA, PH. GAVILLET, E. GAZIS, R. GOKIELI, B. GOLOB, G. GOMEZ-CEBALLOS, P. GONCALVES, E. GRAZIANI, G. GROSDIDIER, K. GRZELAK, J. GUY, C. HAAG, A. HALLGREN, K. HAMACHER, K. HAMILTON, S. HAUG, F. HAULER, V. HEDBERG, M. HENNECKE, J. HOFFMAN, S-O. HOLMGREN, P. J. HOLT, M. A. HOULDEN, J. N. JACKSON, G. JARLSKOG, P. JARRY, D. JEANS, E. K. JOHANSSON, P. JONSSON, C. JORAM, L. JUNGERMANN, F. KAPUSTA, S. KATSANEVAS, E. KATSOUFIS, G. KERNEL, B. P. KERSEVAN, U. KERZEL, B. T. KING, N. J. KJAER, P. KLUIT, P. KOKKINIAS, C. KOURKOUMELIS, O. KOUZNETSOV, Z. KRUMSTEIN, M. KUCHARCZYK, J. LAMSA, G. LEDER, F. LEDROIT, L. LEINONEN, R. LEITNER, J. LEMONNE, V. LEPELTIER, T. LESIAK, W. LIEBIG, D. LIKO5, A. LIPNIACKA, J. H. LOPES, J. M. LOPEZ, D. LOUKAS, P. LUTZ, L. LYONS, J. MACNAUGHTON, A. MALEK, S. MALTEZOS, F. MANDL, J. MARCO, R. MARCO, B. MARECHAL, M. MARGONI, J-C. MARIN, C. MARIOTTI, A. MARKOU, C. MARTINEZ-RIVERO, J. MASIK, N. MASTROYIANNOPOULOS, F. MATORRAS, C. MATTEUZZI, F. MAZZUCATO, M. MAZZUCATO, R. MC NULTY, C. MERONI, E. MIGLIORE, W. MITAROFF, U. MJOERNMARK, T. MOA, M. MOCH, K. MOENIG, R. MONGE, J. MONTENEGRO, D. MORAES, S. MORENO, P. MORETTINI, U. MUELLER, K. MUENICH, M. MULDERS, L. MUNDIM, W. MURRAY, B. MURYN, G. MYATT, T. MYKLEBUST, M. NASSIAKOU, F. NAVARRIA, K. NAWROCKI, S. NEMECEK, R. NICOLAIDOU, M. NIKOLENKO, A. OBLAKOWSKA-MUCHA, V. OBRAZTSOV, A. OLSHEVSKI, A. ONOFRE, R. ORAVA, K. OSTERBERG, A. OURAOU, A. OYANGUREN, M. PAGANONI, S. PAIANO, J. P. PALACIOS, H. PALKA, TH. D. PAPADOPOULOU, L. PAPE, C. PARKES, F. PARODI, U. PARZEFALL, A. PASSERI, O. PASSON, L. PERALTA, V. PEREPELITSA, A. PERROTTA, A. PETROLINI, J. PIEDRA, L. PIERI, F. PIERRE, M. PIMENTA, E. PIOTTO, T. PODOBNIK, V. POIREAU, M. E. POL, G. POLOK, V. POZDNIAKOV, N. PUKHAEVA, A. PULLIA, D. RADOJICIC, P. REBECCHI, J. REHN, D. REID, R. REINHARDT, P. RENTON, F. RICHARD, J. RIDKY, M. RIVERO, D. RODRIGUEZ, A. ROMERO, P. RONCHESE, P. ROUDEAU, T. ROVELLI, V. RUHLMANN-KLEIDER, D. RYABTCHIKOV, A. SADOVSKY, L. SALMI, J. SALT, C. SANDER, A. SAVOY-NAVARRO, U. SCHWICKERATH, R. SEKULIN, M. SIEBEL, A. SISAKIAN, G. SMADJA, O. SMIRNOVA, A. SOKOLOV, A. SOPCZAK, R. SOSNOWSKI, T. SPASSOV, M. STANITZKI, A. STOCCHI, J. STRAUSS, B. STUGU, M. SZCZEKOWSKI, M. SZEPTYCKA, T. SZUMLAK, T. TABARELLI, F. TEGENFELDT, J. TIMMERMANS, L. TKATCHEV, M. TOBIN, S. TODOROVOVA, B. TOME, A. TONAZZO, P. TORTOSA, P. TRAVNICEK, D. TREILLE, G. TRISTRAM, M. TROCHIMCZUK, C. TRONCON, M-L. TURLUER, I. A. TYAPKIN, S. TZAMARIAS, V. UVAROV, G. VALENTI, P. VAN DAM, J. VAN ELDIK, N. VAN REMORTEL, I. VAN VULPEN, G. VEGNI, F. VELOSO, W. VENUS, P. VERDIER, YU. L. VERTOGRADOVA, V. VERZI, D. VILANOVA, L. VITALE, V. VRBA, H. WAHLEN, A. J. WASHBROOK, C. WEISER, D. WICKE, J. WICKENS, G. WILKINSON, M. WINTER, M. WITEK, O. YUSHCHENKO, A. ZALEWSKA, P. ZALEWSKI, D. ZAVRTANIK, V. ZHURAVLOV, N. I. ZIMIN, A. ZINTCHENKO, and M. ZUPAN

Subjects
Top quark, Physics and Astronomy (miscellaneous), High Energy Physics::Lattice, 01 natural sciences, High Energy Physics - Experiment, High Energy Physics - Experiment (hep-ex), [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], 010303 astronomy & astrophysics, computer.programming_language, Boson, Physics, Detector, E(+)E(-) COLLISIONS, BENCHMARK SCENARIOS, PAIR PRODUCTION, STANDARD MODEL, Z(0) DECAYS, Z0 DECAYS, LEP, MASS, PHENOMENOLOGY, PARTICLES, LARGE ELECTRON POSITRON COLLIDER, Pseudoscalar, PARTICLE PHYSICS, DELPHI, Physique des particules élémentaires, Higgs boson, CP violation, Particle Physics - Experiment, Quark, Particle physics, FOS: Physical sciences, Sciences de l'ingénieur, Higgs sector, Standard Model, 0103 physical sciences, 010306 general physics, Engineering (miscellaneous), Physique, 010308 nuclear & particles physics, E+E, High Energy Physics::Phenomenology, Astronomie, HIGGS, High Energy Physics::Experiment, computer, Delphi, MSSM
Abstract

This paper presents the final interpretation of the results from DELPHI on the searches for Higgs bosons in the minimal supersymmetric extension of the Standard Model (MSSM). A few representative scenarios are considered, that include CP conservation and explicit CP violation in the Higgs sector. The experimental results encompass the searches for neutral Higgs bosons at LEP1 and LEP2 in final states as expected in the MSSM, as well as LEP2 searches for charged Higgs bosons and for neutral Higgs bosons decaying into hadrons independent of the quark flavour. The data reveal no significant excess with respect to background expectations. The results are translated into excluded regions of the parameter space in the various scenarios. In the CP-conserving case, these lead to limits on the masses of the lightest scalar and pseudoscalar Higgs bosons, h and A, and on tanβ. The dependence of these limits on the top quark mass is discussed. Allowing for CP violation reduces the experimental sensitivity to Higgs bosons. It is shown that this effect depends strongly on the values of the parameters responsible for CP violation in the Higgs sector. © 2008 Springer-Verlag / Società Italiana di Fisica., 0, SCOPUS: ar.j, info:eu-repo/semantics/published

Published
2008

43. Upper limit for the decay and measurement of the branching ratio

Author

D. Bertrand, Jiri Chudoba, N. Benekos, Patrick Jarry, G. Rinaudo, Z. Krumstein, E. Cortina, J. Salt, Rupert Leitner, M. Battaglia, G. Matthiae, E. Kriznic, Ch. Royon, P. Kubinec, O. Klapp, Clara Troncon, S. Paiano, A. De Min, D. Moraes, L. Bugge, R. Janik, S. Crepe, Juergen Thomas, N. I. Zimin, I. Ripp-Baudot, E. K. Johansson, Borge Svane Nielsen, A. Maio, F. Carena, G. Sajot, U. Flagmeyer, N. Tinti, Krzysztof Doroba, Chiara Meroni, A. Tonazzo, H. Palka, W. Da Silva, W. A. Mitaroff, V. Malychev, S. Cabrera, V. Ruhlmann-Kleider, H. Foeth, Ph. Charpentier, A. G. Frodesen, M. S. Bilenky, J. W. Lamsa, C. Gaspar, Ugo Amaldi, M. Bonesini, Natale Demaria, U. Mueller, M. A. Bizouard, A. Passeri, L.J. Carroll, K. Muenich, Louis Lyons, Fabio Cossutti, F. J. Harris, F. Terranova, F. Richard, B. De Lotto, G. Crosetti, Evgueni Vlasov, P. Chochula, P. Negri, G. C. Zucchelli, Oxana Smirnova, Jelena Krstic, I. Gonzalez Caballero, W. De Boer, E. Zevgolatakos, A. W. Borgland, H. M. Blom, Y. Sacquin, Kathy Huet, P. Jonsson, Valeriy Pozdniakov, R. Alemany, P. Bruckman, F. Barao, Anna Lipniacka, E. I. Rosenberg, W. Van Doninck, A. De Angelis, K. Karafasoulis, Igor Boyko, T. Lesiak, S. Almehed, S. Fichet, M. Tobin, P. B. Renton, A. C. Taffard, P. Collins, S. Tzamarias, E. Higon, Giovanni Valenti, R. Chierici, F. Hahn, C. Matteuzzi, M. Nassiakou, O.M. Kouznetsov, V. Lepeltier, M. Pernicka, J. Fayot, Jesus Marco, G. Lenzen, R. Strub, F. Martinez-Vidal, G. Borisov, V. Kostioukhine, M. Siebel, Paolo Checchia, S. Gamblin, B. Schwering, B. Marechal, Richard Brenner, M. L. Turluer, F. Simonetto, D. Reid, E. C. Katsoufis, E. Boudinov, F. Scuri, Rosy Nicolaidou, G. Orazi, G. A. Chelkov, Ph. Gavillet, J-C. Marin, Daniel Bloch, J. E. Augustin, D. Wicke, A. Kinvig, G. Leder, E. Ferrer-Ribas, J. D. Durand, A. G. Olshevski, U. Schwickerath, Ahmimed Ouraou, Marta Calvi, R. Paiva, M. Gaspar, Vincenzo Canale, Geoffrey Smith, Klaus Hamacher, N. Neufeld, G. Mc Pherson, H. Herr, L. G. Tkatchev, P. V. Chliapnikov, B. Åsman, S. Haider, M. Feindt, S. Sánchez Navas, W. Liebig, Tord Ekelof, T. Alderweireld, P. Verdier, P. Niezurawski, J. MacNaughton, Gianni Zumerle, V. Lefebure, R. Gokieli, A. Nygren, M. Berggren, A. N. Sisakian, A. Sadovsky, Gunter Wolf, Demetrios Loukas, L. Di Ciaccio, L. Ventura, G. Grosdidier, A. Malek, A. Sokolov, S. Todorova, D. Crennell, F. Mandl, C. Caso, S. Heising, Claire Bourdarios, V. Chorowicz, P. Poropat, G. Smadja, A. Pullia, R. Muresan, P. Andersson, Andre Augustinus, Flavio Fontanelli, Wolfgang Adam, Alessandra Romero, A. Ruiz, Piotr Zalewski, Sofia Andringa, P. Tyapkin, S. Hoorelbeke, B. Loerstad, Paolo Morettini, Dimos Sampsonidis, J. Drees, Göran Jarlskog, Phillip Allport, K. Cieslik, C. Joram, Paolo Ronchese, Maria Roberta Monge, Christine Kourkoumelis, M. Baubillier, Achille Stocchi, J. M. Heuser, T. Podobnik, H. B. Crawley, G. Della Ricca, N. Pukhaeva, Ugo Gasparini, Yu. Belokopytov, N. J. Kjaer, Christian Weiser, A. Onofre, J. G. Loken, D. Fassouliotis, Andrea Perrotta, T. Tabarelli, B. Tome, P. Rebecchi, Th. D. Papadopoulou, Ch. Jarlskog, A. Zalewska, F. Glege, Jørgen Beck Hansen, Alexander Vodopyanov, G. Morton, E. G. Anassontzis, V.A. Uvarov, M. Mazzucato, P. Beilliere, Ph. Schwemling, O. Yushchenko, Evangelos Gazis, W. D. Apel, J. P. Engel, S. Stanic, M. V. Castillo Gimenez, H. Rahmani, I. Lippi, F. Pierre, Ariella Cattai, W. T. Meyer, Guillelmo Gomez-Ceballos, R. Sekulin, Manfred Krammer, R. Barbier, J. H. Wickens, V. Verzi, M. Bracko, B. Muryn, Marco Paganoni, V. Nomokonov, Oliver Passon, P. Goncalves, J. Van Eldik, F. Fulda-Quenzer, F. Ledroit, J. Fuster, G. Vegni, I. Bozovic, M. Stanitzki, Alessandro Petrolini, Dietrich Liko, P. Privitera, O. Ullaland, Gareth J. Barker, A. Miagkov, G. Tristram, B.P. Kersevan, Vincent Hedberg, Daniel Jeans, V. Gracco, E. Graziani, V. Obraztsov, M. Dracos, D. W. Lane, M. Davenport, C. Haag, N. Van Remortel, J. M. Brunet, T. Moa, L.N. Gerdyukov, Krzysztof Nawrocki, W. Van den Boeck, J. N. Jackson, Chariclia Petridou, Christopher Parkes, A. J. Washbrook, J. Cuevas Maestro, F. Tegenfeldt, R. Lauhakangas, R. Mc Nulty, L. Vitale, Guido Barbiellini, J. Rames, R. Sosnowski, F. Naraghi, P. Rosinsky, Klaus Moenig, Fabrizio Parodi, Cristian Stanescu, P. Branchini, Antonios Leisos, D. Radojicic, P. Kokkinias, I. van Vulpen, Matteo Pegoraro, G. Ekspong, B. Jean-Marie, M. A. Houlden, S. Marti i Garcia, P. Gris, Georgios Fanourakis, T. Buran, Markus Elsing, B. Franek, Amiran Tomaradze, R. Moeller, Daniel Treille, M. Bigi, P. Abreu, P. Van Dam, X. Moreau, Laurent Mirabito, D. Gele, J. Guy, Attilio Andreazza, K. Stevenson, I. A. Tyapkin, P. Lutz, J. Ridky, P. N. Ratoff, A. Markou, A. Galloni, Corinne Berat, L. K. Resvanis, J. H. Lopes, U. Parzefall, A. Firestone, S. O. Holmgren, Nikita Smirnov, Tiziano Rovelli, Olga Botner, G. Transtromer, A. Kiiskinen, I. V. Ajinenko, L. S. Vertogradov, Tim Adye, C. Bosio, Sandra Amato, M. Nikolenko, B. Buschbeck, B. Golob, Mattias Ellert, Carmen García, Reynald Pain, Massimo Caccia, S. Squarcia, A. Behrmann, H. Saarikko, Tiziano Camporesi, G. Cosme, S. Maltezos, Luca Tortora, T. Myklebust, P. Herquet, L. Simard, M. Begalli, P. J. Holt, Vaclav Vrba, R. Contri, N. G. Redaelli, Hans Dijkstra, Marco Bozzo, Pawel Jalocha, Barry King, Marc Winter, C. Mulet-Marquis, T. J. V. Bowcock, Petar Adzic, P. Juillot, L. Leinonen, E. Spiriti, Jiri Masik, R. Lopez-Fernandez, Ph. Zoller, M. Huber, C. Walck, Nikolaos P. Mastroyiannopoulos, G. D. Alekseev, R. Reinhardt, Nicola Amapane, T. L. Hessing, R. Frühwirth, N. Seibert, J. Timmermans, Luc Pape, Josef Strauss, J. Kurowska, R. C. Shellard, Josef Hrubec, V. Chabaud, G. J. Hughes, M. Espirito Santo, W. Venus, Chiara Mariotti, J. J. Hernandez, D. Zavrtanik, P. Delpierre, S. Hahn, R. Orava, G. Myatt, Manolis Dris, T. G M Malmgren, Mario Sannino, H. Wahlen, Francesca Romana Cavallo, I. Gil, Y. Arnoud, M. Moch, P. Roudeau, T. Geralis, V. V. Lapin, K. Grzelak, C. De Clercq, A. M. Segar, G. Eigen, W. J. Murray, M. Mc Cubbin, Z. Albrecht, Allan Hallgren, B. Bouquet, Antonio Baroncelli, Alberto Benvenuti, Fabrizio Ferro, Rafael Marco, J. Dolbeau, P. Bambade, P.S.L. Booth, L. Jungermann, K. H. Becks, E. Vallazza, J. Palacios, Arnaud Duperrin, D. Vilanova, P. Buschmann, R. Mc Kay, Stefano Ragazzi, E. Piotto, J. Grahl, Morgan Lethuillier, Maria Elena Pol, S. Katsanevas, A. Sopczak, D. Y. Bardin, R. Keranen, Francisco Matorras, C. Martinez-Rivero, A. Ferrer, Yu. Sedykh, Martijn Mulders, P. Antilogus, J. Rehn, Martino Margoni, E. Fokitis, Peter Kluit, F. Mazzucato, J. Libby, Ole Røhne, M. Pimenta, B. A. Khomenko, Francesco Navarria, Pablo Tortosa, A. Zintchenko, K. Hultqvist, L. Gorn, U. Mjoernmark, H. T. Phillips, P. Seager, N. Ghodbane, N. N. Khovanski, J. P. Laugier, M. Verlato, R. Jacobsson, J. Yi, A. Van Lysebetten, Sandor Czellar, G. Polok, Yu. Gouz, Ernesto Migliore, G. Kernel, T. Allmendinger, G. Wilkinson, J. M. Lopez, K. Kurvinen, Paul Baillon, Alexander Lincoln Read, M. Szeptycka, Marc Besancon, Luis Peralta, F. Kapusta, Marek Szczekowski, H. Klein, K. Osterberg, T. Pavel, J.R. Mahon, G. Gopal, Maarten Boonekamp, L. De Paula, M. Trochimczuk, T. Spassov, D. Gamba, M. Witek, G. Voulgaris, F. Verbeure, B. Stugu, and M. Gandelman

Subjects
Physics, Nuclear and High Energy Physics, Particle physics, Meson, 010308 nuclear & particles physics, Branching fraction, Electron–positron annihilation, High Energy Physics::Phenomenology, Hadron, Computer Science::Digital Libraries, 01 natural sciences, Standard Model, Nuclear physics, 0103 physical sciences, Computer Science::Mathematical Software, Higgs boson, High Energy Physics::Experiment, B meson, 010306 general physics, Lepton
Abstract

The branching ratio for the leptonic decay of charged B mesons View the MathML source has been measured using selected leptonic View the MathML source and hadronic τ−→ντX decays in View the MathML source decays recorded by DELPHI at LEP1 in 1992–1995. The result, View the MathML source at the 90% confidence level, is consistent with standard model expectations and puts a constraint on the ratio tanβ/MH±

Published
2000

44. Determination of the e+e−→γγ(γ) cross-section at centre-of-mass energies ranging from 189 GeV to 202 GeV

Author

P. Abreu, W. Adam, T. Adye, P. Adzic, Z. Albrecht, T. Alderweireld, G.D. Alekseev, R. Alemany, T. Allmendinger, P.P. Allport, S. Almehed, U. Amaldi, N. Amapane, S. Amato, E.G. Anassontzis, P. Andersson, A. Andreazza, S. Andringa, P. Antilogus, W.-D. Apel, Y. Arnoud, B. Åsman, J.-E. Augustin, A. Augustinus, P. Baillon, A. Ballestrero, P. Bambade, F. Barao, G. Barbiellini, R. Barbier, D.Y. Bardin, G. Barker, A. Baroncelli, M. Battaglia, M. Baubillier, K.-H. Becks, M. Begalli, A. Behrmann, P. Beilliere, Yu. Belokopytov, K. Belous, N.C. Benekos, A.C. Benvenuti, C. Berat, M. Berggren, L. Berntzon, D. Bertrand, M. Besancon, M.S. Bilenky, M.-A. Bizouard, D. Bloch, H.M. Blom, M. Bonesini, M. Boonekamp, P.S.L. Booth, G. Borisov, C. Bosio, O. Botner, E. Boudinov, B. Bouquet, C. Bourdarios, T.J.V. Bowcock, I. Boyko, I. Bozovic, M. Bozzo, M. Bracko, P. Branchini, R.A. Brenner, P. Bruckman, J.-M. Brunet, L. Bugge, T. Buran, B. Buschbeck, P. Buschmann, S. Cabrera, M. Caccia, M. Calvi, T. Camporesi, V. Canale, F. Carena, L. Carroll, M.V. Castillo Gimenez, A. Cattai, F.R. Cavallo, M. Chapkin, Ph. Charpentier, P. Checchia, G.A. Chelkov, R. Chierici, P. Chliapnikov, P. Chochula, V. Chorowicz, J. Chudoba, K. Cieslik, P. Collins, R. Contri, E. Cortina, G. Cosme, F. Cossutti, M. Costa, H.B. Crawley, D. Crennell, G. Crosetti, J. Cuevas Maestro, S. Czellar, J. D'Hondt, J. Dalmau, M. Davenport, W. Da Silva, G. Della Ricca, P. Delpierre, N. Demaria, A. De Angelis, W. De Boer, C. De Clercq, B. De Lotto, A. De Min, L. De Paula, H. Dijkstra, L. Di Ciaccio, J. Dolbeau, K. Doroba, M. Dracos, J. Drees, M. Dris, G. Eigen, T. Ekelof, M. Ellert, M. Elsing, J.-P. Engel, M. Espirito Santo, G. Fanourakis, D. Fassouliotis, M. Feindt, J. Fernandez, A. Ferrer, E. Ferrer-Ribas, F. Ferro, A. Firestone, U. Flagmeyer, H. Foeth, E. Fokitis, F. Fontanelli, B. Franek, A.G. Frodesen, R. Fruhwirth, F. Fulda-Quenzer, J. Fuster, A. Galloni, D. Gamba, S. Gamblin, M. Gandelman, C. Garcia, C. Gaspar, M. Gaspar, U. Gasparini, Ph. Gavillet, E.N. Gazis, D. Gele, T. Geralis, N. Ghodbane, I. Gil, F. Glege, R. Gokieli, B. Golob, G. Gomez-Ceballos, P. Goncalves, I. Gonzalez Caballero, G. Gopal, L. Gorn, Yu. Gouz, V. Gracco, J. Grahl, E. Graziani, P. Gris, G. Grosdidier, K. Grzelak, J. Guy, C. Haag, F. Hahn, S. Hahn, S. Haider, Z. Hajduk, A. Hallgren, K. Hamacher, J. Hansen, F.J. Harris, F. Hauler, V. Hedberg, S. Heising, J.J. Hernandez, P. Herquet, H. Herr, E. Higon, S.-O. Holmgren, P.J. Holt, S. Hoorelbeke, M. Houlden, J. Hrubec, M. Huber, G.J. Hughes, K. Hultqvist, J.N. Jackson, R. Jacobsson, P. Jalocha, R. Janik, Ch. Jarlskog, G. Jarlskog, P. Jarry, B. Jean-Marie, D. Jeans, E.K. Johansson, P. Jonsson, C. Joram, P. Juillot, L. Jungermann, F. Kapusta, K. Karafasoulis, S. Katsanevas, E.C. Katsoufis, R. Keranen, G. Kernel, B.P. Kersevan, Yu. Khokhlov, B.A. Khomenko, N.N. Khovanski, A. Kiiskinen, B. King, A. Kinvig, N.J. Kjaer, O. Klapp, P. Kluit, P. Kokkinias, V. Kostioukhine, C. Kourkoumelis, O. Kouznetsov, M. Krammer, E. Kriznic, Z. Krumstein, P. Kubinec, W. Kucewicz, J. Kurowska, K. Kurvinen, J.W. Lamsa, D.W. Lane, V. Lapin, J.-P. Laugier, R. Lauhakangas, G. Leder, F. Ledroit, L. Leinonen, A. Leisos, R. Leitner, J. Lemonne, G. Lenzen, V. Lepeltier, M. Lethuillier, J. Libby, W. Liebig, D. Liko, A. Lipniacka, I. Lippi, B. Loerstad, J.G. Loken, J.H. Lopes, J.M. Lopez, R. Lopez-Fernandez, D. Loukas, P. Lutz, L. Lyons, J. MacNaughton, J.R. Mahon, A. Maio, A. Malek, S. Maltezos, V. Malychev, F. Mandl, J. Marco, R. Marco, B. Marechal, M. Margoni, J.-C. Marin, C. Mariotti, A. Markou, C. Martinez-Rivero, S. Marti i Garcia, J. Masik, N. Mastroyiannopoulos, F. Matorras, C. Matteuzzi, G. Matthiae, F. Mazzucato, M. Mazzucato, M. Mc Cubbin, R. Mc Kay, R. Mc Nulty, G. Mc Pherson, E. Merle, C. Meroni, W.T. Meyer, A. Miagkov, E. Migliore, L. Mirabito, W.A. Mitaroff, U. Mjoernmark, T. Moa, M. Moch, R. Moeller, K. Moenig, M.R. Monge, D. Moraes, P. Morettini, G. Morton, U. Mueller, K. Muenich, M. Mulders, C. Mulet-Marquis, L.M. Mundim, R. Muresan, W.J. Murray, B. Muryn, G. Myatt, T. Myklebust, F. Naraghi, M. Nassiakou, F.L. Navarria, K. Nawrocki, P. Negri, N. Neufeld, R. Nicolaidou, B.S. Nielsen, P. Niezurawski, M. Nikolenko, V. Nomokonov, A. Nygren, A. Oblakowska Mucha, V. Obraztsov, A.G. Olshevski, A. Onofre, R. Orava, G. Orazi, K. Osterberg, A. Ouraou, A. Oyanguren, M. Paganoni, S. Paiano, R. Pain, R. Paiva, J. Palacios, Th.D. Papadopoulou, L. Pape, C. Parkes, F. Parodi, U. Parzefall, A. Passeri, O. Passon, T. Pavel, M. Pegoraro, L. Peralta, M. Pernicka, A. Perrotta, C. Petridou, A. Petrolini, H.T. Phillips, F. Pierre, M. Pimenta, E. Piotto, T. Podobnik, V. Poireau, M.E. Pol, G. Polok, P. Poropat, V. Pozdniakov, P. Privitera, N. Pukhaeva, A. Pullia, D. Radojicic, S. Ragazzi, H. Rahmani, J. Rames, P.N. Ratoff, A.L. Read, P. Rebecchi, N.G. Redaelli, M. Regler, J. Rehn, D. Reid, P. Reinertsen, R. Reinhardt, P.B. Renton, L.K. Resvanis, F. Richard, J. Ridky, G. Rinaudo, I. Ripp-Baudot, A. Romero, P. Ronchese, E.I. Rosenberg, P. Rosinsky, P. Roudeau, T. Rovelli, V. Ruhlmann-Kleider, A. Ruiz, H. Saarikko, Y. Sacquin, A. Sadovsky, G. Sajot, J. Salt, D. Sampsonidis, M. Sannino, A. Savoy-Navarro, Ph. Schwemling, B. Schwering, U. Schwickerath, F. Scuri, P. Seager, Y. Sedykh, A.M. Segar, N. Seibert, R. Sekulin, G. Sette, R.C. Shellard, M. Siebel, L. Simard, F. Simonetto, A.N. Sisakian, G. Smadja, O. Smirnova, G.R. Smith, O. Solovianov, A. Sopczak, R. Sosnowski, T. Spassov, E. Spiriti, S. Squarcia, C. Stanescu, M. Stanitzki, K. Stevenson, A. Stocchi, J. Strauss, R. Strub, B. Stugu, M. Szczekowski, M. Szeptycka, T. Tabarelli, A. Taffard, F. Tegenfeldt, F. Terranova, J. Timmermans, N. Tinti, L.G. Tkatchev, M. Tobin, S. Todorova, B. Tome, A. Tonazzo, L. Tortora, P. Tortosa, G. Transtromer, D. Treille, G. Tristram, M. Trochimczuk, C. Troncon, M.-L. Turluer, I.A. Tyapkin, P. Tyapkin, S. Tzamarias, O. Ullaland, V. Uvarov, G. Valenti, E. Vallazza, P. Van Dam, W. Van den Boeck, J. Van Eldik, A. Van Lysebetten, N. van Remortel, I. Van Vulpen, G. Vegni, L. Ventura, W. Venus, F. Verbeure, P. Verdier, M. Verlato, L.S. Vertogradov, V. Verzi, D. Vilanova, L. Vitale, E. Vlasov, A.S. Vodopyanov, G. Voulgaris, V. Vrba, H. Wahlen, A.J. Washbrook, C. Weiser, D. Wicke, J.H. Wickens, G.R. Wilkinson, M. Winter, G. Wolf, J. Yi, O. Yushchenko, A. Zalewska, P. Zalewski, D. Zavrtanik, E. Zevgolatakos, N.I. Zimin, A. Zintchenko, Ph. Zoller, G. Zumerle, and M. Zupan

Subjects
Physics, Nuclear and High Energy Physics, Particle physics, Luminosity (scattering theory), 010308 nuclear & particles physics, Astrophysics::High Energy Astrophysical Phenomena, High Energy Physics::Phenomenology, Graviton, Lambda, 01 natural sciences, Upper and lower bounds, Gamma gamma, Cross section (geometry), Excited state, 0103 physical sciences, High Energy Physics::Experiment, Mass scale, 010306 general physics
Abstract

A test of the QED process e+e- -> gamma gamma (gamma) is reported. The data analysed were collected with the DELPHI detector in 1998 and 1999 at the highest energies achieved at LEP, reaching 202 GeV in the centre-of-mass. The total integrated luminosity amounts to 375.7 pb^{-1}. The differential and total cross-sections for the process e+e- -> gamma gamma were measured, and found to be in agreement with the QED prediction. 95% Confidence Level (C.L.) lower limits on the QED cut-off parameters of Lambda+ > 330 GeV and Lambda- > 320 GeV were derived. A 95% C.L. lower bound on the mass of an excited electron of 311 GeV/c^2 (for lambda_gamma = 1) was obtained. s-channel virtual graviton exchange was searched for, resulting in 95% C.L. lower limits on the string mass scale, M_S: M_S > 713 GeV/c^2 (lambda = 1) and M_S > 691 GeV/c^2 (lambda = -1).

Published
2000

45. Rapidity-rank structure of pairs in hadronic Z0 decays

Author

P. Abreu, W. Adam, T. Adye, P. Adzic, I. Ajinenko, Z. Albrecht, T. Alderweireld, G.D. Alekseev, R. Alemany, T. Allmendinger, P.P. Allport, S. Almehed, U. Amaldi, N. Amapane, S. Amato, E.G. Anassontzis, P. Andersson, A. Andreazza, S. Andringa, P. Antilogus, W-D. Apel, Y. Arnoud, B. Åsman, J-E. Augustin, A. Augustinus, P. Baillon, P. Bambade, F. Barao, G. Barbiellini, R. Barbier, D.Y. Bardin, G. Barker, A. Baroncelli, M. Battaglia, M. Baubillier, K-H. Becks, M. Begalli, A. Behrmann, P. Beilliere, Yu. Belokopytov, N.C. Benekos, A.C. Benvenuti, C. Berat, M. Berggren, D. Bertrand, M. Besancon, M. Bigi, M.S. Bilenky, M-A. Bizouard, D. Bloch, H.M. Blom, M. Bonesini, M. Boonekamp, P.S.L. Booth, A.W. Borgland, G. Borisov, C. Bosio, O. Botner, E. Boudinov, B. Bouquet, C. Bourdarios, T.J.V. Bowcock, I. Boyko, I. Bozovic, M. Bozzo, M. Bracko, P. Branchini, R.A. Brenner, P. Bruckman, J-M. Brunet, L. Bugge, T. Buran, B. Buschbeck, P. Buschmann, S. Cabrera, M. Caccia, M. Calvi, T. Camporesi, V. Canale, F. Carena, L. Carroll, C. Caso, M.V. Castillo Gimenez, A. Cattai, F.R. Cavallo, V. Chabaud, Ph. Charpentier, P. Checchia, G.A. Chelkov, R. Chierici, P. Chliapnikov, P. Chochula, V. Chorowicz, J. Chudoba, K. Cieslik, P. Collins, R. Contri, E. Cortina, G. Cosme, F. Cossutti, H.B. Crawley, D. Crennell, S. Crepe, G. Crosetti, J. Cuevas Maestro, S. Czellar, M. Davenport, W. Da Silva, G. Della Ricca, P. Delpierre, N. Demaria, A. De Angelis, W. De Boer, C. De Clercq, B. De Lotto, A. De Min, L. De Paula, H. Dijkstra, L. Di Ciaccio, J. Dolbeau, K. Doroba, M. Dracos, J. Drees, M. Dris, A. Duperrin, J-D. Durand, G. Eigen, T. Ekelof, G. Ekspong, M. Ellert, M. Elsing, J-P. Engel, M. Espirito Santo, G. Fanourakis, D. Fassouliotis, J. Fayot, M. Feindt, A. Ferrer, E. Ferrer-Ribas, F. Ferro, S. Fichet, A. Firestone, U. Flagmeyer, H. Foeth, E. Fokitis, F. Fontanelli, B. Franek, A.G. Frodesen, R. Fruhwirth, F. Fulda-Quenzer, J. Fuster, A. Galloni, D. Gamba, S. Gamblin, M. Gandelman, C. Garcia, C. Gaspar, M. Gaspar, U. Gasparini, Ph. Gavillet, E.N. Gazis, D. Gele, L. Gerdyukov, N. Ghodbane, I. Gil, F. Glege, R. Gokieli, B. Golob, G. Gomez-Ceballos, P. Goncalves, I. Gonzalez Caballero, G. Gopal, L. Gorn, V. Gracco, J. Grahl, E. Graziani, P. Gris, G. Grosdidier, K. Grzelak, J. Guy, C. Haag, F. Hahn, S. Hahn, S. Haider, A. Hallgren, K. Hamacher, J. Hansen, F.J. Harris, V. Hedberg, S. Heising, J.J. Hernandez, P. Herquet, H. Herr, T.L. Hessing, J.-M. Heuser, E. Higon, S-O. Holmgren, P.J. Holt, S. Hoorelbeke, M. Houlden, J. Hrubec, M. Huber, K. Huet, G.J. Hughes, K. Hultqvist, J.N. Jackson, R. Jacobsson, P. Jalocha, R. Janik, Ch. Jarlskog, G. Jarlskog, P. Jarry, B. Jean-Marie, D. Jeans, E.K. Johansson, P. Jonsson, C. Joram, P. Juillot, L. Jungermann, F. Kapusta, K. Karafasoulis, S. Katsanevas, E.C. Katsoufis, R. Keranen, G. Kernel, B.P. Kersevan, Yu. Khokhlov, B.A. Khomenko, N.N. Khovanski, A. Kiiskinen, B. King, A. Kinvig, N.J. Kjaer, O. Klapp, H. Klein, P. Kluit, P. Kokkinias, V. Kostioukhine, C. Kourkoumelis, O. Kouznetsov, M. Krammer, E. Kriznic, Z. Krumstein, P. Kubinec, J. Kurowska, K. Kurvinen, J.W. Lamsa, D.W. Lane, V. Lapin, J-P. Laugier, R. Lauhakangas, G. Leder, F. Ledroit, V. Lefebure, L. Leinonen, A. Leisos, R. Leitner, J. Lemonne, G. Lenzen, V. Lepeltier, T. Lesiak, M. Lethuillier, J. Libby, W. Liebig, D. Liko, A. Lipniacka, I. Lippi, B. Loerstad, J.G. Loken, J.H. Lopes, J.M. Lopez, R. Lopez-Fernandez, D. Loukas, P. Lutz, L. Lyons, J. MacNaughton, J.R. Mahon, A. Maio, A. Malek, T.G.M. Malmgren, S. Maltezos, V. Malychev, F. Mandl, J. Marco, R. Marco, B. Marechal, M. Margoni, J-C. Marin, C. Mariotti, A. Markou, C. Martinez-Rivero, F. Martinez-Vidal, S. Marti i Garcia, J. Masik, N. Mastroyiannopoulos, F. Matorras, C. Matteuzzi, G. Matthiae, F. Mazzucato, M. Mazzucato, M. Mc Cubbin, R. Mc Kay, R. Mc Nulty, G. Mc Pherson, C. Meroni, W.T. Meyer, A. Miagkov, E. Migliore, L. Mirabito, W.A. Mitaroff, U. Mjoernmark, T. Moa, M. Moch, R. Moeller, K. Moenig, M.R. Monge, D. Moraes, X. Moreau, P. Morettini, G. Morton, U. Mueller, K. Muenich, M. Mulders, C. Mulet-Marquis, R. Muresan, W.J. Murray, B. Muryn, G. Myatt, T. Myklebust, F. Naraghi, M. Nassiakou, F.L. Navarria, S. Navas, K. Nawrocki, P. Negri, N. Neufeld, R. Nicolaidou, B.S. Nielsen, P. Niezurawski, M. Nikolenko, V. Nomokonov, A. Nygren, V. Obraztsov, A.G. Olshevski, A. Onofre, R. Orava, G. Orazi, K. Osterberg, A. Ouraou, M. Paganoni, S. Paiano, R. Pain, R. Paiva, J. Palacios, H. Palka, Th.D. Papadopoulou, K. Papageorgiou, L. Pape, C. Parkes, F. Parodi, U. Parzefall, A. Passeri, O. Passon, T. Pavel, M. Pegoraro, L. Peralta, M. Pernicka, A. Perrotta, C. Petridou, A. Petrolini, H.T. Phillips, F. Pierre, M. Pimenta, E. Piotto, T. Podobnik, M.E. Pol, G. Polok, P. Poropat, V. Pozdniakov, P. Privitera, N. Pukhaeva, A. Pullia, D. Radojicic, S. Ragazzi, H. Rahmani, J. Rames, P.N. Ratoff, A.L. Read, P. Rebecchi, N.G. Redaelli, M. Regler, J. Rehn, D. Reid, R. Reinhardt, P.B. Renton, L.K. Resvanis, F. Richard, J. Ridky, G. Rinaudo, I. Ripp-Baudot, O. Rohne, A. Romero, P. Ronchese, E.I. Rosenberg, P. Rosinsky, P. Roudeau, T. Rovelli, Ch. Royon, V. Ruhlmann-Kleider, A. Ruiz, H. Saarikko, Y. Sacquin, A. Sadovsky, G. Sajot, J. Salt, D. Sampsonidis, M. Sannino, Ph. Schwemling, B. Schwering, U. Schwickerath, F. Scuri, P. Seager, Y. Sedykh, A.M. Segar, N. Seibert, R. Sekulin, R.C. Shellard, M. Siebel, L. Simard, F. Simonetto, A.N. Sisakian, G. Smadja, N. Smirnov, O. Smirnova, G.R. Smith, A. Sokolov, A. Sopczak, R. Sosnowski, T. Spassov, E. Spiriti, S. Squarcia, C. Stanescu, S. Stanic, M. Stanitzki, K. Stevenson, A. Stocchi, J. Strauss, R. Strub, B. Stugu, M. Szczekowski, M. Szeptycka, T. Tabarelli, A. Taffard, F. Tegenfeldt, F. Terranova, J. Thomas, J. Timmermans, N. Tinti, L.G. Tkatchev, M. Tobin, S. Todorova, A. Tomaradze, B. Tome, A. Tonazzo, L. Tortora, P. Tortosa, G. Transtromer, D. Treille, G. Tristram, M. Trochimczuk, C. Troncon, M-L. Turluer, I.A. Tyapkin, S. Tzamarias, O. Ullaland, V. Uvarov, G. Valenti, E. Vallazza, P. Van Dam, W. Van den Boeck, J. Van Eldik, A. Van Lysebetten, N. van Remortel, I. Van Vulpen, G. Vegni, L. Ventura, W. Venus, F. Verbeure, P. Verdier, M. Verlato, L.S. Vertogradov, V. Verzi, D. Vilanova, L. Vitale, E. Vlasov, A.S. Vodopyanov, G. Voulgaris, V. Vrba, H. Wahlen, C. Walck, A.J. Washbrook, C. Weiser, D. Wicke, J.H. Wickens, G.R. Wilkinson, M. Winter, M. Witek, G. Wolf, J. Yi, O. Yushchenko, A. Zalewska, P. Zalewski, D. Zavrtanik, E. Zevgolatakos, N.I. Zimin, A. Zintchenko, Ph. Zoller, G.C. Zucchelli, and G. Zumerle

Subjects
Physics, Nuclear and High Energy Physics, Particle physics, Meson, 010308 nuclear & particles physics, Hadron, Structure (category theory), Rank (differential topology), 01 natural sciences, Baryon, 0103 physical sciences, High Energy Physics::Experiment, Rapidity, Nuclear Experiment, 010306 general physics
Abstract

The rapidity-rank structure of p pbar pairs is used to analyze the mechanism of baryon production in hadronic Z0 decay. The relative occurrence of the rapidity-ordered configuration p M pbar, where M is a meson, and that of p pbar adjacent pairs is compared. The data are found to be consistent with predictions from a mechanism producing adjacent-rank p pbar pairs, without requiring `string-ordered' p M pbar configurations. An upper limit of 15% at 90% confidence is determined for the p M pbar contribution.

Published
2000

46. Limits on the masses of supersymmetric particles at GeV

Author

P. Abreu, W. Adam, T. Adye, P. Adzic, I. Ajinenko, Z. Albrecht, T. Alderweireld, G.D. Alekseev, R. Alemany, T. Allmendinger, P.P. Allport, S. Almehed, U. Amaldi, N. Amapane, S. Amato, E.G. Anassontzis, P. Andersson, A. Andreazza, S. Andringa, P. Antilogus, W-D. Apel, Y. Arnoud, B. Åsman, J-E. Augustin, A. Augustinus, P. Baillon, A. Ballestrero, P. Bambade, F. Barao, G. Barbiellini, R. Barbier, D.Y. Bardin, G. Barker, A. Baroncelli, M. Battaglia, M. Baubillier, K-H. Becks, M. Begalli, A. Behrmann, P. Beilliere, Yu. Belokopytov, N.C. Benekos, A.C. Benvenuti, C. Berat, M. Berggren, L. Berntzon, D. Bertrand, M. Besancon, M.S. Bilenky, M-A. Bizouard, D. Bloch, H.M. Blom, M. Bonesini, M. Boonekamp, P.S.L. Booth, G. Borisov, C. Bosio, O. Botner, E. Boudinov, B. Bouquet, C. Bourdarios, T.J.V. Bowcock, I. Boyko, I. Bozovic, M. Bozzo, M. Bracko, P. Branchini, R.A. Brenner, P. Bruckman, J-M. Brunet, L. Bugge, T. Buran, B. Buschbeck, P. Buschmann, S. Cabrera, M. Caccia, M. Calvi, T. Camporesi, V. Canale, F. Carena, L. Carroll, C. Caso, M.V. Castillo Gimenez, A. Cattai, F.R. Cavallo, Ph. Charpentier, P. Checchia, G.A. Chelkov, R. Chierici, P. Chliapnikov, P. Chochula, V. Chorowicz, J. Chudoba, K. Cieslik, P. Collins, R. Contri, E. Cortina, G. Cosme, F. Cossutti, M. Costa, H.B. Crawley, D. Crennell, G. Crosetti, J. Cuevas Maestro, S. Czellar, J. D'Hondt, J. Dalmau, M. Davenport, W. Da Silva, G. Della Ricca, P. Delpierre, N. Demaria, A. De Angelis, W. De Boer, C. De Clercq, B. De Lotto, A. De Min, L. De Paula, H. Dijkstra, L. Di Ciaccio, J. Dolbeau, K. Doroba, M. Dracos, J. Drees, M. Dris, G. Eigen, T. Ekelof, M. Ellert, M. Elsing, J-P. Engel, M. Espirito Santo, G. Fanourakis, D. Fassouliotis, M. Feindt, J. Fernandez, A. Ferrer, E. Ferrer-Ribas, F. Ferro, A. Firestone, U. Flagmeyer, H. Foeth, E. Fokitis, F. Fontanelli, B. Franek, A.G. Frodesen, R. Fruhwirth, F. Fulda-Quenzer, J. Fuster, A. Galloni, D. Gamba, S. Gamblin, M. Gandelman, C. Garcia, C. Gaspar, M. Gaspar, U. Gasparini, Ph. Gavillet, E.N. Gazis, D. Gele, T. Geralis, L. Gerdyukov, N. Ghodbane, I. Gil, F. Glege, R. Gokieli, B. Golob, G. Gomez-Ceballos, P. Goncalves, I. Gonzalez Caballero, G. Gopal, L. Gorn, Yu. Gouz, V. Gracco, J. Grahl, E. Graziani, P. Gris, G. Grosdidier, K. Grzelak, J. Guy, C. Haag, F. Hahn, S. Hahn, S. Haider, A. Hallgren, K. Hamacher, J. Hansen, F.J. Harris, F. Hauler, V. Hedberg, S. Heising, J.J. Hernandez, P. Herquet, H. Herr, E. Higon, S-O. Holmgren, P.J. Holt, S. Hoorelbeke, M. Houlden, J. Hrubec, M. Huber, G.J. Hughes, K. Hultqvist, J.N. Jackson, R. Jacobsson, P. Jalocha, R. Janik, Ch. Jarlskog, G. Jarlskog, P. Jarry, B. Jean-Marie, D. Jeans, E.K. Johansson, P. Jonsson, C. Joram, P. Juillot, L. Jungermann, F. Kapusta, K. Karafasoulis, S. Katsanevas, E.C. Katsoufis, R. Keranen, G. Kernel, B.P. Kersevan, Yu. Khokhlov, B.A. Khomenko, N.N. Khovanski, A. Kiiskinen, B. King, A. Kinvig, N.J. Kjaer, O. Klapp, P. Kluit, P. Kokkinias, V. Kostioukhine, C. Kourkoumelis, O. Kouznetsov, M. Krammer, E. Kriznic, Z. Krumstein, P. Kubinec, J. Kurowska, K. Kurvinen, J.W. Lamsa, D.W. Lane, J-P. Laugier, R. Lauhakangas, G. Leder, F. Ledroit, L. Leinonen, A. Leisos, R. Leitner, G. Lenzen, V. Lepeltier, T. Lesiak, M. Lethuillier, J. Libby, W. Liebig, D. Liko, A. Lipniacka, I. Lippi, B. Loerstad, J.G. Loken, J.H. Lopes, J.M. Lopez, R. Lopez-Fernandez, D. Loukas, P. Lutz, L. Lyons, J. MacNaughton, J.R. Mahon, A. Maio, A. Malek, S. Maltezos, V. Malychev, F. Mandl, J. Marco, R. Marco, B. Marechal, M. Margoni, J-C. Marin, C. Mariotti, A. Markou, C. Martinez-Rivero, S. Marti i Garcia, J. Masik, N. Mastroyiannopoulos, F. Matorras, C. Matteuzzi, G. Matthiae, F. Mazzucato, M. Mazzucato, M. Mc Cubbin, R. Mc Kay, R. Mc Nulty, G. Mc Pherson, E. Merle, C. Meroni, W.T. Meyer, E. Migliore, L. Mirabito, W.A. Mitaroff, U. Mjoernmark, T. Moa, M. Moch, R. Moeller, K. Moenig, M.R. Monge, D. Moraes, P. Morettini, G. Morton, U. Mueller, K. Muenich, M. Mulders, C. Mulet-Marquis, L.M. Mundim, R. Muresan, W.J. Murray, B. Muryn, G. Myatt, T. Myklebust, F. Naraghi, M. Nassiakou, F.L. Navarria, K. Nawrocki, P. Negri, N. Neufeld, R. Nicolaidou, B.S. Nielsen, P. Niezurawski, M. Nikolenko, V. Nomokonov, A. Nygren, V. Obraztsov, A.G. Olshevski, A. Onofre, R. Orava, G. Orazi, K. Osterberg, A. Ouraou, A. Oyanguren, M. Paganoni, S. Paiano, R. Pain, R. Paiva, J. Palacios, H. Palka, Th.D. Papadopoulou, L. Pape, C. Parkes, F. Parodi, U. Parzefall, A. Passeri, O. Passon, T. Pavel, M. Pegoraro, L. Peralta, M. Pernicka, A. Perrotta, C. Petridou, A. Petrolini, H.T. Phillips, F. Pierre, M. Pimenta, E. Piotto, T. Podobnik, V. Poireau, M.E. Pol, G. Polok, P. Poropat, V. Pozdniakov, P. Privitera, N. Pukhaeva, A. Pullia, D. Radojicic, S. Ragazzi, H. Rahmani, J. Rames, P.N. Ratoff, A.L. Read, P. Rebecchi, N.G. Redaelli, M. Regler, J. Rehn, D. Reid, P. Reinertsen, R. Reinhardt, P.B. Renton, L.K. Resvanis, F. Richard, J. Ridky, G. Rinaudo, I. Ripp-Baudot, A. Romero, P. Ronchese, E.I. Rosenberg, P. Rosinsky, P. Roudeau, T. Rovelli, V. Ruhlmann-Kleider, A. Ruiz, H. Saarikko, Y. Sacquin, A. Sadovsky, G. Sajot, J. Salt, D. Sampsonidis, M. Sannino, A. Savoy-Navarro, Ph. Schwemling, B. Schwering, U. Schwickerath, F. Scuri, P. Seager, Y. Sedykh, A.M. Segar, N. Seibert, R. Sekulin, G. Sette, R.C. Shellard, M. Siebel, L. Simard, F. Simonetto, A.N. Sisakian, G. Smadja, N. Smirnov, O. Smirnova, G.R. Smith, A. Sokolov, A. Sopczak, R. Sosnowski, T. Spassov, E. Spiriti, S. Squarcia, C. Stanescu, M. Stanitzki, K. Stevenson, A. Stocchi, J. Strauss, R. Strub, B. Stugu, M. Szczekowski, M. Szeptycka, T. Tabarelli, A. Taffard, O. Tchikilev, F. Tegenfeldt, F. Terranova, J. Timmermans, N. Tinti, L.G. Tkatchev, M. Tobin, S. Todorova, B. Tome, A. Tonazzo, L. Tortora, P. Tortosa, G. Transtromer, D. Treille, G. Tristram, M. Trochimczuk, C. Troncon, M-L. Turluer, I.A. Tyapkin, P. Tyapkin, S. Tzamarias, O. Ullaland, V. Uvarov, G. Valenti, E. Vallazza, C. Vander Velde, P. Van Dam, W. Van den Boeck, J. Van Eldik, A. Van Lysebetten, N. van Remortel, I. Van Vulpen, G. Vegni, L. Ventura, W. Venus, F. Verbeure, P. Verdier, M. Verlato, L.S. Vertogradov, V. Verzi, D. Vilanova, L. Vitale, E. Vlasov, A.S. Vodopyanov, G. Voulgaris, V. Vrba, H. Wahlen, A.J. Washbrook, C. Weiser, D. Wicke, J.H. Wickens, G.R. Wilkinson, M. Winter, M. Witek, G. Wolf, J. Yi, O. Yushchenko, A. Zalewska, P. Zalewski, D. Zavrtanik, E. Zevgolatakos, N.I. Zimin, A. Zintchenko, Ph. Zoller, G. Zumerle, and M. Zupan

Subjects
Physics, Nuclear and High Energy Physics, Selectron tube, Particle physics, Chargino, 010308 nuclear & particles physics, 0103 physical sciences, Neutralino, 010306 general physics, 01 natural sciences, Lightest Supersymmetric Particle
Abstract

Searches for charginos, neutralinos and sleptons at LEP2 centre-of-mass energies from 130 GeV to 189 GeV have been used to set lower limits on the mass of the Lightest Supersymmetric Particle and other supersymmetric particles within the MSSM framework. R-parity conservation has been assumed. The lightest neutralino was found to be heavier than 32.3 GeV/c^2 independent of the m_0 value. The lightest chargino, the second-to-lightest neutralino, the next-to-heaviest neutralino, the heaviest neutralino, the sneutrino and the right-handed selectron were found to be heavier than 62.4 GeV/c^2, 62.4 GeV/c^2, 99.9 GeV/c^2, 116.0 GeV/c^2, 61.0 GeV/c^2, and 87.0 GeV/c^2, respectively. These limits do not depend on m_0 or M_2 and are valid for 1 \leq tan(beta) \leq 40, in the mu region where the lightest neutralino is the LSP. If the sneutrino is heavier than the chargino the lightest neutralino has to be heavier than 32.4 GeV/c^2. The effects of mixings in the third family of sfermions on these limits are discussed. The confidence level of all limits given is 95%.

Published
2000

47. Search for SUSY with R-parity violating couplings at GeV

Author

P. Abreu, W. Adam, T. Adye, P. Adzic, Z. Albrecht, T. Alderweireld, G.D. Alekseev, R. Alemany, T. Allmendinger, P.P. Allport, S. Almehed, U. Amaldi, N. Amapane, S. Amato, E.G. Anassontzis, P. Andersson, A. Andreazza, S. Andringa, P. Antilogus, W-D. Apel, Y. Arnoud, B. Åsman, J-E. Augustin, A. Augustinus, P. Baillon, A. Ballestrero, P. Bambade, F. Barao, G. Barbiellini, R. Barbier, D.Y. Bardin, G. Barker, A. Baroncelli, M. Battaglia, M. Baubillier, K-H. Becks, M. Begalli, A. Behrmann, P. Beilliere, Yu. Belokopytov, K. Belous, N.C. Benekos, A.C. Benvenuti, C. Berat, M. Berggren, L. Berntzon, D. Bertrand, M. Besancon, M.S. Bilenky, M-A. Bizouard, D. Bloch, H.M. Blom, M. Bonesini, M. Boonekamp, P.S.L. Booth, G. Borisov, C. Bosio, O. Botner, E. Boudinov, B. Bouquet, C. Bourdarios, T.J.V. Bowcock, I. Boyko, I. Bozovic, M. Bozzo, M. Bracko, P. Branchini, R.A. Brenner, P. Bruckman, J-M. Brunet, L. Bugge, T. Buran, B. Buschbeck, P. Buschmann, S. Cabrera, M. Caccia, M. Calvi, T. Camporesi, V. Canale, F. Carena, L. Carroll, C. Caso, M.V. Castillo Gimenez, A. Cattai, F.R. Cavallo, M. Chapkin, Ph. Charpentier, P. Checchia, G.A. Chelkov, R. Chierici, P. Chliapnikov, P. Chochula, V. Chorowicz, J. Chudoba, K. Cieslik, P. Collins, E. Cortina, G. Cosme, F. Cossutti, M. Costa, H.B. Crawley, D. Crennell, G. Crosetti, J. Cuevas Maestro, S. Czellar, J. D'Hondt, J. Dalmau, M. Davenport, W. Da Silva, G. Della Ricca, P. Delpierre, N. Demaria, A. De Angelis, W. De Boer, C. De Clercq, B. De Lotto, A. De Min, L. De Paula, H. Dijkstra, L. Di Ciaccio, J. Dolbeau, K. Doroba, M. Dracos, J. Drees, M. Dris, G. Eigen, T. Ekelof, M. Ellert, M. Elsing, J-P. Engel, M. Espirito Santo, G. Fanourakis, D. Fassouliotis, M. Feindt, J. Fernandez, A. Ferrer, E. Ferrer-Ribas, F. Ferro, A. Firestone, U. Flagmeyer, H. Foeth, E. Fokitis, F. Fontanelli, B. Franek, A.G. Frodesen, R. Fruhwirth, F. Fulda-Quenzer, J. Fuster, A. Galloni, D. Gamba, S. Gamblin, M. Gandelman, C. Garcia, C. Gaspar, M. Gaspar, U. Gasparini, Ph. Gavillet, E.N. Gazis, D. Gele, T. Geralis, N. Ghodbane, I. Gil, F. Glege, R. Gokieli, B. Golob, G. Gomez-Ceballos, P. Goncalves, I. Gonzalez Caballero, G. Gopal, L. Gorn, Yu. Gouz, V. Gracco, J. Grahl, E. Graziani, P. Gris, G. Grosdidier, K. Grzelak, J. Guy, C. Haag, F. Hahn, S. Hahn, S. Haider, A. Hallgren, K. Hamacher, J. Hansen, F.J. Harris, F. Hauler, V. Hedberg, S. Heising, J.J. Hernandez, P. Herquet, H. Herr, E. Higon, S-O. Holmgren, P.J. Holt, S. Hoorelbeke, M. Houlden, J. Hrubec, M. Huber, G.J. Hughes, K. Hultqvist, J.N. Jackson, R. Jacobsson, P. Jalocha, R. Janik, Ch. Jarlskog, G. Jarlskog, P. Jarry, B. Jean-Marie, D. Jeans, E.K. Johansson, P. Jonsson, C. Joram, P. Juillot, L. Jungermann, F. Kapusta, K. Karafasoulis, S. Katsanevas, E.C. Katsoufis, R. Keranen, G. Kernel, B.P. Kersevan, Yu. Khokhlov, B.A. Khomenko, N.N. Khovanski, A. Kiiskinen, B. King, A. Kinvig, N.J. Kjaer, O. Klapp, P. Kluit, P. Kokkinias, V. Kostioukhine, C. Kourkoumelis, O. Kouznetsov, M. Krammer, E. Kriznic, Z. Krumstein, P. Kubinec, J. Kurowska, K. Kurvinen, J.W. Lamsa, D.W. Lane, V. Lapin, J-P. Laugier, R. Lauhakangas, G. Leder, F. Ledroit, L. Leinonen, A. Leisos, R. Leitner, J. Lemonne, G. Lenzen, V. Lepeltier, T. Lesiak, M. Lethuillier, J. Libby, W. Liebig, D. Liko, A. Lipniacka, I. Lippi, B. Loerstad, J.G. Loken, J.H. Lopes, J.M. Lopez, R. Lopez-Fernandez, D. Loukas, P. Lutz, L. Lyons, J. MacNaughton, J.R. Mahon, A. Maio, A. Malek, S. Maltezos, V. Malychev, F. Mandl, J. Marco, R. Marco, B. Marechal, M. Margoni, J-C. Marin, C. Mariotti, A. Markou, C. Martinez-Rivero, S. Marti i Garcia, J. Masik, N. Mastroyiannopoulos, F. Matorras, C. Matteuzzi, G. Matthiae, F. Mazzucato, M. Mazzucato, M. Mc Cubbin, R. Mc Kay, R. Mc Nulty, G. Mc Pherson, E. Merle, C. Meroni, W.T. Meyer, A. Miagkov, E. Migliore, L. Mirabito, W.A. Mitaroff, U. Mjoernmark, T. Moa, M. Moch, R. Moeller, K. Moenig, M.R. Monge, D. Moraes, P. Morettini, G. Morton, U. Mueller, K. Muenich, M. Mulders, C. Mulet-Marquis, L.M. Mundim, R. Muresan, W.J. Murray, B. Muryn, G. Myatt, T. Myklebust, F. Naraghi, M. Nassiakou, F.L. Navarria, K. Nawrocki, P. Negri, N. Neufeld, R. Nicolaidou, B.S. Nielsen, P. Niezurawski, M. Nikolenko, V. Nomokonov, A. Nygren, V. Obraztsov, A.G. Olshevski, A. Onofre, R. Orava, G. Orazi, K. Osterberg, A. Ouraou, A. Oyanguren, M. Paganoni, S. Paiano, R. Pain, R. Paiva, J. Palacios, H. Palka, Th.D. Papadopoulou, L. Pape, C. Parkes, F. Parodi, U. Parzefall, A. Passeri, O. Passon, T. Pavel, M. Pegoraro, L. Peralta, M. Pernicka, A. Perrotta, C. Petridou, A. Petrolini, H.T. Phillips, F. Pierre, M. Pimenta, E. Piotto, T. Podobnik, V. Poireau, M.E. Pol, G. Polok, P. Poropat, V. Pozdniakov, P. Privitera, N. Pukhaeva, A. Pullia, D. Radojicic, S. Ragazzi, H. Rahmani, J. Rames, P.N. Ratoff, A.L. Read, P. Rebecchi, N.G. Redaelli, M. Regler, J. Rehn, D. Reid, P. Reinertsen, R. Reinhardt, P.B. Renton, L.K. Resvanis, F. Richard, J. Ridky, G. Rinaudo, I. Ripp-Baudot, A. Romero, P. Ronchese, E.I. Rosenberg, P. Rosinsky, P. Roudeau, T. Rovelli, V. Ruhlmann-Kleider, A. Ruiz, H. Saarikko, Y. Sacquin, A. Sadovsky, G. Sajot, J. Salt, D. Sampsonidis, M. Sannino, A. Savoy-Navarro, Ph. Schwemling, B. Schwering, U. Schwickerath, F. Scuri, P. Seager, Y. Sedykh, A.M. Segar, N. Seibert, R. Sekulin, G. Sette, R.C. Shellard, M. Siebel, L. Simard, F. Simonetto, A.N. Sisakian, G. Smadja, O. Smirnova, G.R. Smith, O. Solovianov, A. Sopczak, R. Sosnowski, T. Spassov, E. Spiriti, S. Squarcia, C. Stanescu, M. Stanitzki, K. Stevenson, A. Stocchi, J. Strauss, R. Strub, B. Stugu, M. Szczekowski, M. Szeptycka, T. Tabarelli, A. Taffard, F. Tegenfeldt, F. Terranova, J. Timmermans, N. Tinti, L.G. Tkatchev, M. Tobin, S. Todorova, B. Tome, A. Tonazzo, L. Tortora, P. Tortosa, G. Transtromer, D. Treille, G. Tristram, M. Trochimczuk, C. Troncon, M-L. Turluer, I.A. Tyapkin, P. Tyapkin, S. Tzamarias, O. Ullaland, V. Uvarov, G. Valenti, E. Vallazza, P. Van Dam, W. Van den Boeck, J. Van Eldik, A. Van Lysebetten, N. van Remortel, I. Van Vulpen, G. Vegni, L. Ventura, W. Venus, F. Verbeure, P. Verdier, M. Verlato, L.S. Vertogradov, V. Verzi, D. Vilanova, L. Vitale, E. Vlasov, A.S. Vodopyanov, G. Voulgaris, V. Vrba, H. Wahlen, A.J. Washbrook, C. Weiser, D. Wicke, J.H. Wickens, G.R. Wilkinson, M. Winter, M. Witek, G. Wolf, J. Yi, O. Yushchenko, A. Zalewska, P. Zalewski, D. Zavrtanik, E. Zevgolatakos, N.I. Zimin, A. Zintchenko, Ph. Zoller, G. Zumerle, and M. Zupan

Subjects
Physics, Nuclear and High Energy Physics, Particle physics, 010308 nuclear & particles physics, High Energy Physics::Phenomenology, Scalar (mathematics), Supersymmetry, Lambda, 01 natural sciences, Standard Model, Pair production, R-parity, 0103 physical sciences, High Energy Physics::Experiment, 010306 general physics, Energy (signal processing), Lepton
Abstract

Searches for pair production of supersymmetric particles under the assumption that R-parity is not conserved are presented, based on data recorded by the DELPHI detector in 1998 from e+e- collisions at a centre-of-mass energy of 189 GeV. Only one R-parity violating LL\bar{E} term (i.e. one lambda coupling), which couples scalar leptons to leptons, is considered to be dominant at a time. Moreover, it is assumed that the strength of the R-parity violating couplings is such that the lifetimes can be neglected. The search for pair production of neutralinos, charginos and sleptons has been performed for both direct R-parity violating decays and indirect cascade decays. The results are in agreement with Standard Model expectations, and are used to update the constraints on the MSSM parameter values and the mass limits previously derived at sqrt(s) = 183 GeV. The present 95% C.L. limits on supersymmetric particle masses are: m_{\tilde{\chi}^0} > 30 GeV/c^2 and m_{\tilde{\chi}^\pm} > 94 GeV/c^2; m_{\tilde{\nu}} > 76.5 GeV/c^2 (direct and indirect decays); m_{\tilde{\ell}_R} > 83 GeV/c^2 (indirect decay only).

Published
2000

48. Determination of |Vub|/|Vcb| with DELPHI at LEP

Author

P. Abreu, W. Adam, T. Adye, P. Adzic, Z. Albrecht, T. Alderweireld, G.D. Alekseev, R. Alemany, T. Allmendinger, P.P. Allport, S. Almehed, U. Amaldi, N. Amapane, S. Amato, E.G. Anassontzis, P. Andersson, A. Andreazza, S. Andringa, P. Antilogus, W-D. Apel, Y. Arnoud, B. Åsman, J-E. Augustin, A. Augustinus, P. Baillon, P. Bambade, F. Barao, G. Barbiellini, R. Barbier, D.Y. Bardin, G. Barker, A. Baroncelli, M. Battaglia, M. Baubillier, K-H. Becks, M. Begalli, A. Behrmann, P. Beilliere, Yu. Belokopytov, K. Belous, N.C. Benekos, A.C. Benvenuti, C. Berat, M. Berggren, D. Bertrand, M. Besancon, M. Bigi, M.S. Bilenky, M-A. Bizouard, D. Bloch, H.M. Blom, M. Bonesini, M. Boonekamp, P.S.L. Booth, A.W. Borgland, G. Borisov, C. Bosio, O. Botner, E. Boudinov, B. Bouquet, C. Bourdarios, T.J.V. Bowcock, I. Boyko, I. Bozovic, M. Bozzo, M. Bracko, P. Branchini, R.A. Brenner, P. Bruckman, J-M. Brunet, L. Bugge, T. Buran, B. Buschbeck, P. Buschmann, S. Cabrera, M. Caccia, M. Calvi, T. Camporesi, V. Canale, F. Carena, L. Carroll, C. Caso, M.V. Castillo Gimenez, A. Cattai, F.R. Cavallo, V. Chabaud, M. Chapkin, Ph. Charpentier, P. Checchia, G.A. Chelkov, R. Chierici, P. Chliapnikov, P. Chochula, V. Chorowicz, J. Chudoba, K. Cieslik, P. Collins, R. Contri, E. Cortina, G. Cosme, F. Cossutti, H.B. Crawley, D. Crennell, S. Crepe, G. Crosetti, J. Cuevas Maestro, S. Czellar, M. Davenport, W. Da Silva, G. Della Ricca, P. Delpierre, N. Demaria, A. De Angelis, W. De Boer, C. De Clercq, B. De Lotto, A. De Min, L. De Paula, H. Dijkstra, L. Di Ciaccio, J. Dolbeau, K. Doroba, M. Dracos, J. Drees, M. Dris, A. Duperrin, J-D. Durand, G. Eigen, T. Ekelof, G. Ekspong, M. Ellert, M. Elsing, J-P. Engel, M. Espirito Santo, G. Fanourakis, D. Fassouliotis, J. Fayot, M. Feindt, A. Ferrer, E. Ferrer-Ribas, F. Ferro, S. Fichet, A. Firestone, U. Flagmeyer, H. Foeth, E. Fokitis, F. Fontanelli, B. Franek, A.G. Frodesen, R. Fruhwirth, F. Fulda-Quenzer, J. Fuster, A. Galloni, D. Gamba, S. Gamblin, M. Gandelman, C. Garcia, C. Gaspar, M. Gaspar, U. Gasparini, Ph. Gavillet, E.N. Gazis, D. Gele, N. Ghodbane, I. Gil, F. Glege, R. Gokieli, B. Golob, G. Gomez-Ceballos, P. Goncalves, I. Gonzalez Caballero, G. Gopal, L. Gorn, Yu. Gouz, V. Gracco, J. Grahl, E. Graziani, P. Gris, G. Grosdidier, K. Grzelak, J. Guy, C. Haag, F. Hahn, S. Hahn, S. Haider, A. Hallgren, K. Hamacher, J. Hansen, F.J. Harris, V. Hedberg, S. Heising, J.J. Hernandez, P. Herquet, H. Herr, T.L. Hessing, J.-M. Heuser, E. Higon, S-O. Holmgren, P.J. Holt, S. Hoorelbeke, M. Houlden, J. Hrubec, M. Huber, K. Huet, G.J. Hughes, K. Hultqvist, J.N. Jackson, R. Jacobsson, P. Jalocha, R. Janik, Ch. Jarlskog, G. Jarlskog, P. Jarry, B. Jean-Marie, D. Jeans, E.K. Johansson, P. Jonsson, C. Joram, P. Juillot, L. Jungermann, F. Kapusta, K. Karafasoulis, S. Katsanevas, E.C. Katsoufis, R. Keranen, G. Kernel, B.P. Kersevan, B.A. Khomenko, N.N. Khovanski, A. Kiiskinen, B. King, A. Kinvig, N.J. Kjaer, O. Klapp, H. Klein, P. Kluit, P. Kokkinias, V. Kostioukhine, C. Kourkoumelis, O. Kouznetsov, M. Krammer, E. Kriznic, Z. Krumstein, P. Kubinec, J. Kurowska, K. Kurvinen, J.W. Lamsa, D.W. Lane, V. Lapin, J-P. Laugier, R. Lauhakangas, G. Leder, F. Ledroit, V. Lefebure, L. Leinonen, A. Leisos, R. Leitner, G. Lenzen, V. Lepeltier, T. Lesiak, M. Lethuillier, J. Libby, W. Liebig, D. Liko, A. Lipniacka, I. Lippi, B. Loerstad, J.G. Loken, J.H. Lopes, J.M. Lopez, R. Lopez-Fernandez, D. Loukas, P. Lutz, L. Lyons, J. MacNaughton, J.R. Mahon, A. Maio, A. Malek, T.G.M. Malmgren, S. Maltezos, V. Malychev, F. Mandl, J. Marco, R. Marco, B. Marechal, M. Margoni, J-C. Marin, C. Mariotti, A. Markou, C. Martinez-Rivero, F. Martinez-Vidal, S. Marti i Garcia, J. Masik, N. Mastroyiannopoulos, F. Matorras, C. Matteuzzi, G. Matthiae, F. Mazzucato, M. Mazzucato, M. Mc Cubbin, R. Mc Kay, R. Mc Nulty, G. Mc Pherson, C. Meroni, W.T. Meyer, E. Migliore, L. Mirabito, W.A. Mitaroff, U. Mjoernmark, T. Moa, M. Moch, R. Moeller, K. Moenig, M.R. Monge, D. Moraes, X. Moreau, P. Morettini, G. Morton, U. Mueller, K. Muenich, M. Mulders, C. Mulet-Marquis, R. Muresan, W.J. Murray, B. Muryn, G. Myatt, T. Myklebust, F. Naraghi, M. Nassiakou, F.L. Navarria, S. Navas, K. Nawrocki, P. Negri, N. Neufeld, R. Nicolaidou, B.S. Nielsen, P. Niezurawski, M. Nikolenko, V. Nomokonov, A. Nygren, V. Obraztsov, A.G. Olshevski, A. Onofre, R. Orava, G. Orazi, K. Osterberg, A. Ouraou, M. Paganoni, S. Paiano, R. Pain, R. Paiva, J. Palacios, H. Palka, Th.D. Papadopoulou, K. Papageorgiou, L. Pape, C. Parkes, F. Parodi, U. Parzefall, A. Passeri, O. Passon, T. Pavel, M. Pegoraro, L. Peralta, M. Pernicka, A. Perrotta, C. Petridou, A. Petrolini, H.T. Phillips, F. Pierre, M. Pimenta, E. Piotto, T. Podobnik, M.E. Pol, G. Polok, P. Poropat, V. Pozdniakov, P. Privitera, N. Pukhaeva, A. Pullia, D. Radojicic, S. Ragazzi, H. Rahmani, J. Rames, P.N. Ratoff, A.L. Read, P. Rebecchi, N.G. Redaelli, M. Regler, J. Rehn, D. Reid, R. Reinhardt, P.B. Renton, L.K. Resvanis, F. Richard, J. Ridky, G. Rinaudo, I. Ripp-Baudot, O. Rohne, A. Romero, P. Ronchese, E.I. Rosenberg, P. Rosinsky, P. Roudeau, T. Rovelli, Ch. Royon, V. Ruhlmann-Kleider, A. Ruiz, H. Saarikko, Y. Sacquin, A. Sadovsky, G. Sajot, J. Salt, D. Sampsonidis, M. Sannino, Ph. Schwemling, B. Schwering, U. Schwickerath, F. Scuri, P. Seager, Y. Sedykh, A.M. Segar, N. Seibert, R. Sekulin, R.C. Shellard, M. Siebel, L. Simard, F. Simonetto, A.N. Sisakian, G. Smadja, O. Smirnova, G.R. Smith, A. Sokolov, O. Solovianov, A. Sopczak, R. Sosnowski, T. Spassov, E. Spiriti, S. Squarcia, C. Stanescu, S. Stanic, M. Stanitzki, K. Stevenson, A. Stocchi, J. Strauss, R. Strub, B. Stugu, M. Szczekowski, M. Szeptycka, T. Tabarelli, A. Taffard, F. Tegenfeldt, F. Terranova, J. Thomas, J. Timmermans, N. Tinti, L.G. Tkatchev, M. Tobin, S. Todorova, A. Tomaradze, B. Tome, A. Tonazzo, L. Tortora, P. Tortosa, G. Transtromer, D. Treille, G. Tristram, M. Trochimczuk, C. Troncon, M-L. Turluer, I.A. Tyapkin, S. Tzamarias, O. Ullaland, V. Uvarov, G. Valenti, E. Vallazza, C. Vander Velde, P. Van Dam, W. Van den Boeck, W.K. Van Doninck, J. Van Eldik, A. Van Lysebetten, N. van Remortel, I. Van Vulpen, G. Vegni, L. Ventura, W. Venus, F. Verbeure, P. Verdier, M. Verlato, L.S. Vertogradov, V. Verzi, D. Vilanova, L. Vitale, E. Vlasov, A.S. Vodopyanov, G. Voulgaris, V. Vrba, H. Wahlen, C. Walck, A.J. Washbrook, C. Weiser, D. Wicke, J.H. Wickens, G.R. Wilkinson, M. Winter, M. Witek, G. Wolf, J. Yi, O. Yushchenko, A. Zaitsev, A. Zalewska, P. Zalewski, D. Zavrtanik, E. Zevgolatakos, N.I. Zimin, A. Zintchenko, Ph. Zoller, G.C. Zucchelli, G. Zumerle, UCL - SST/IRMP - Institut de recherche en mathématique et physique, BARBIELLINI AMIDEI, Guido, Cossutti, F., DELLA RICCA, Giuseppe, Poropat, Paolo, and Vitale, Lorenzo

Subjects
Nuclear and High Energy Physics, Particle physics, Meson, Hadron, FOS: Physical sciences, 01 natural sciences, Partícules (Física nuclear), High Energy Physics - Experiment, High Energy Physics - Experiment (hep-ex), 0103 physical sciences, Nuclear Experiment, 010306 general physics, DELPHI, Physics, Energy distribution, 010308 nuclear & particles physics, Branching fraction, High Energy Physics::Phenomenology, Rest frame, LARGE ELECTRON POSITRON COLLIDER, PARTICLE PHYSICS, Física nuclear, High Energy Physics::Experiment, Particle Physics - Experiment, Lepton
Abstract

The ratio of the CKM quark-mixing matrix elements |Vub|/|Vcb| has been measured using B hadron semileptonic decays. The analysis uses the reconstructed mass M_X of the secondary hadronic system produced in association with an identified lepton. Since B -> X_u lepton anti-nu transitions are characterised by hadronic masses below those of the D mesons produced in B -> X_c lepton anti-nu transitions, events with a reconstructed value of M_X significantly below the D mass are selected. Further signal enrichments are obtained using the topology of reconstructed decays and hadron identification. A fit to the numbers of decays in the b -> u enriched and depleted samples with M_X above and below 1.6 GeV/c^2 and to the shapes of the lepton energy distribution in the B rest frame gives |Vub|/|Vcb|= 0.103^{+0.011}_{-0.012} (stat.) +/- 0.016 (syst.) +/- 0.010 (model) and, correspondingly, a charmless semileptonic B decay branching fraction of BR(B -> X_u lepton anti-nu) = (1.57 +/- 0.35 (stat.) +/- 0.48 (syst.) +/- 0.27 (model)) x 10^{-3}., 24 pages, 8 figures

Published
2000

49. Search for heavy stable and long-lived particles in e+e− collisions at GeV

Author

P. Abreu, W. Adam, T. Adye, P. Adzic, Z. Albrecht, T. Alderweireld, G.D. Alekseev, R. Alemany, T. Allmendinger, P.P. Allport, S. Almehed, U. Amaldi, N. Amapane, S. Amato, E.G. Anassontzis, P. Andersson, A. Andreazza, S. Andringa, P. Antilogus, W-D. Apel, Y. Arnoud, B. Åsman, J-E. Augustin, A. Augustinus, P. Baillon, P. Bambade, F. Barao, G. Barbiellini, R. Barbier, D.Y. Bardin, G. Barker, A. Baroncelli, M. Battaglia, M. Baubillier, K-H. Becks, M. Begalli, A. Behrmann, P. Beilliere, Yu. Belokopytov, K. Belous, N.C. Benekos, A.C. Benvenuti, C. Berat, M. Berggren, D. Bertrand, M. Besancon, M. Bigi, M.S. Bilenky, M-A. Bizouard, D. Bloch, H.M. Blom, M. Bonesini, M. Boonekamp, P.S.L. Booth, A.W. Borgland, G. Borisov, C. Bosio, O. Botner, E. Boudinov, B. Bouquet, C. Bourdarios, T.J.V. Bowcock, I. Boyko, I. Bozovic, M. Bozzo, M. Bracko, P. Branchini, R.A. Brenner, P. Bruckman, J-M. Brunet, L. Bugge, T. Buran, B. Buschbeck, P. Buschmann, S. Cabrera, M. Caccia, M. Calvi, T. Camporesi, V. Canale, F. Carena, L. Carroll, C. Caso, M.V. Castillo Gimenez, A. Cattai, F.R. Cavallo, V. Chabaud, M. Chapkin, Ph. Charpentier, P. Checchia, G.A. Chelkov, R. Chierici, P. Chliapnikov, P. Chochula, V. Chorowicz, J. Chudoba, K. Cieslik, P. Collins, R. Contri, E. Cortina, G. Cosme, F. Cossutti, H.B. Crawley, D. Crennell, S. Crepe, G. Crosetti, J. Cuevas Maestro, S. Czellar, M. Davenport, W. Da Silva, G. Della Ricca, P. Delpierre, N. Demaria, A. De Angelis, W. De Boer, C. De Clercq, B. De Lotto, A. De Min, L. De Paula, H. Dijkstra, L. Di Ciaccio, J. Dolbeau, K. Doroba, M. Dracos, J. Drees, M. Dris, A. Duperrin, J-D. Durand, G. Eigen, T. Ekelof, G. Ekspong, M. Ellert, M. Elsing, J-P. Engel, M. Espirito Santo, G. Fanourakis, D. Fassouliotis, J. Fayot, M. Feindt, A. Ferrer, E. Ferrer-Ribas, F. Ferro, S. Fichet, A. Firestone, U. Flagmeyer, H. Foeth, E. Fokitis, F. Fontanelli, B. Franek, A.G. Frodesen, R. Fruhwirth, F. Fulda-Quenzer, J. Fuster, A. Galloni, D. Gamba, S. Gamblin, M. Gandelman, C. Garcia, C. Gaspar, M. Gaspar, U. Gasparini, Ph. Gavillet, E.N. Gazis, D. Gele, T. Geralis, N. Ghodbane, I. Gil, F. Glege, R. Gokieli, B. Golob, G. Gomez-Ceballos, P. Goncalves, I. Gonzalez Caballero, G. Gopal, L. Gorn, Yu. Gouz, V. Gracco, J. Grahl, E. Graziani, P. Gris, G. Grosdidier, K. Grzelak, J. Guy, C. Haag, F. Hahn, S. Hahn, S. Haider, A. Hallgren, K. Hamacher, J. Hansen, F.J. Harris, V. Hedberg, S. Heising, J.J. Hernandez, P. Herquet, H. Herr, T.L. Hessing, J.-M. Heuser, E. Higon, S-O. Holmgren, P.J. Holt, S. Hoorelbeke, M. Houlden, J. Hrubec, M. Huber, K. Huet, G.J. Hughes, K. Hultqvist, J.N. Jackson, R. Jacobsson, P. Jalocha, R. Janik, Ch. Jarlskog, G. Jarlskog, P. Jarry, B. Jean-Marie, D. Jeans, E.K. Johansson, P. Jonsson, C. Joram, P. Juillot, L. Jungermann, F. Kapusta, K. Karafasoulis, S. Katsanevas, E.C. Katsoufis, R. Keranen, G. Kernel, B.P. Kersevan, Yu. Khokhlov, B.A. Khomenko, N.N. Khovanski, A. Kiiskinen, B. King, A. Kinvig, N.J. Kjaer, O. Klapp, H. Klein, P. Kluit, P. Kokkinias, V. Kostioukhine, C. Kourkoumelis, O. Kouznetsov, M. Krammer, E. Kriznic, Z. Krumstein, P. Kubinec, J. Kurowska, K. Kurvinen, J.W. Lamsa, D.W. Lane, V. Lapin, J-P. Laugier, R. Lauhakangas, G. Leder, F. Ledroit, V. Lefebure, L. Leinonen, A. Leisos, R. Leitner, G. Lenzen, V. Lepeltier, T. Lesiak, M. Lethuillier, J. Libby, W. Liebig, D. Liko, A. Lipniacka, I. Lippi, B. Loerstad, J.G. Loken, J.H. Lopes, J.M. Lopez, R. Lopez-Fernandez, D. Loukas, P. Lutz, L. Lyons, J. MacNaughton, J.R. Mahon, A. Maio, A. Malek, T.G.M. Malmgren, S. Maltezos, V. Malychev, F. Mandl, J. Marco, R. Marco, B. Marechal, M. Margoni, J-C. Marin, C. Mariotti, A. Markou, C. Martinez-Rivero, F. Martinez-Vidal, S. Marti i Garcia, J. Masik, N. Mastroyiannopoulos, F. Matorras, C. Matteuzzi, G. Matthiae, F. Mazzucato, M. Mazzucato, M. Mc Cubbin, R. Mc Kay, R. Mc Nulty, G. Mc Pherson, C. Meroni, W.T. Meyer, A. Miagkov, E. Migliore, L. Mirabito, W.A. Mitaroff, U. Mjoernmark, T. Moa, M. Moch, R. Moeller, K. Moenig, M.R. Monge, D. Moraes, X. Moreau, P. Morettini, G. Morton, U. Mueller, K. Muenich, M. Mulders, C. Mulet-Marquis, R. Muresan, W.J. Murray, B. Muryn, G. Myatt, T. Myklebust, F. Naraghi, M. Nassiakou, F.L. Navarria, S. Navas, K. Nawrocki, P. Negri, N. Neufeld, R. Nicolaidou, B.S. Nielsen, P. Niezurawski, M. Nikolenko, V. Nomokonov, A. Nygren, V. Obraztsov, A.G. Olshevski, A. Onofre, R. Orava, G. Orazi, K. Osterberg, A. Ouraou, M. Paganoni, S. Paiano, R. Pain, R. Paiva, J. Palacios, H. Palka, Th.D. Papadopoulou, L. Pape, C. Parkes, F. Parodi, U. Parzefall, A. Passeri, O. Passon, T. Pavel, M. Pegoraro, L. Peralta, M. Pernicka, A. Perrotta, C. Petridou, A. Petrolini, H.T. Phillips, F. Pierre, M. Pimenta, E. Piotto, T. Podobnik, M.E. Pol, G. Polok, P. Poropat, V. Pozdniakov, P. Privitera, N. Pukhaeva, A. Pullia, D. Radojicic, S. Ragazzi, H. Rahmani, J. Rames, P.N. Ratoff, A.L. Read, P. Rebecchi, N.G. Redaelli, M. Regler, J. Rehn, D. Reid, R. Reinhardt, P.B. Renton, L.K. Resvanis, F. Richard, J. Ridky, G. Rinaudo, I. Ripp-Baudot, O. Rohne, A. Romero, P. Ronchese, E.I. Rosenberg, P. Rosinsky, P. Roudeau, T. Rovelli, Ch. Royon, V. Ruhlmann-Kleider, A. Ruiz, H. Saarikko, Y. Sacquin, A. Sadovsky, G. Sajot, J. Salt, D. Sampsonidis, M. Sannino, Ph. Schwemling, B. Schwering, U. Schwickerath, F. Scuri, P. Seager, Y. Sedykh, A.M. Segar, N. Seibert, R. Sekulin, R.C. Shellard, M. Siebel, L. Simard, F. Simonetto, A.N. Sisakian, G. Smadja, O. Smirnova, G.R. Smith, O. Solovianov, A. Sopczak, R. Sosnowski, T. Spassov, E. Spiriti, S. Squarcia, C. Stanescu, S. Stanic, M. Stanitzki, K. Stevenson, A. Stocchi, J. Strauss, R. Strub, B. Stugu, M. Szczekowski, M. Szeptycka, T. Tabarelli, A. Taffard, F. Tegenfeldt, F. Terranova, J. Thomas, J. Timmermans, N. Tinti, L.G. Tkatchev, M. Tobin, S. Todorova, A. Tomaradze, B. Tome, A. Tonazzo, L. Tortora, P. Tortosa, G. Transtromer, D. Treille, G. Tristram, M. Trochimczuk, C. Troncon, M-L. Turluer, I.A. Tyapkin, P. Tyapkin, S. Tzamarias, O. Ullaland, V. Uvarov, G. Valenti, E. Vallazza, P. Van Dam, W. Van den Boeck, W.K. Van Doninck, J. Van Eldik, A. Van Lysebetten, N. van Remortel, I. Van Vulpen, G. Vegni, L. Ventura, W. Venus, F. Verbeure, P. Verdier, M. Verlato, L.S. Vertogradov, V. Verzi, D. Vilanova, L. Vitale, E. Vlasov, A.S. Vodopyanov, G. Voulgaris, V. Vrba, H. Wahlen, C. Walck, A.J. Washbrook, C. Weiser, D. Wicke, J.H. Wickens, G.R. Wilkinson, M. Winter, M. Witek, G. Wolf, J. Yi, O. Yushchenko, A. Zalewska, P. Zalewski, D. Zavrtanik, E. Zevgolatakos, N.I. Zimin, A. Zintchenko, Ph. Zoller, G.C. Zucchelli, and G. Zumerle

Subjects
Physics, Nuclear and High Energy Physics, Particle physics, Time projection chamber, 010308 nuclear & particles physics, Detector, 01 natural sciences, Ring-imaging Cherenkov detector, Charged particle, Ionization, 0103 physical sciences, High Energy Physics::Experiment, 010306 general physics, Cherenkov radiation
Abstract

A search for stable and long-lived heavy charged particles was performed using the data taken by the DELPHI experiment at an energy of 189 GeV. The Cherenkov light detected in the Ring Imaging Cherenkov Detector and the ionisation loss measured in the Time Projection Chamber were used to identify heavy particles passing through the detector. No evidence for the production of such particles has been found, therefore exclusion limits at 95% confidence level were derived on the masses of left and right handed smuons and staus. The results were combined with previous DELPHI searches in this channel. Including previous DELPHI results, masses of left (right) handed stable smuons and staus can be excluded between 2 GeV/c^2 and 88 (87.5) GeV/c^2 at 95% CL.

Published
2000

50. Search for charginos in e+e− interactions at GeV

Author

P. Abreu, W. Adam, T. Adye, P. Adzic, I. Ajinenko, Z. Albrecht, T. Alderweireld, G.D. Alekseev, R. Alemany, T. Allmendinger, P.P. Allport, S. Almehed, U. Amaldi, N. Amapane, S. Amato, E.G. Anassontzis, P. Andersson, A. Andreazza, S. Andringa, P. Antilogus, W-D. Apel, Y. Arnoud, B. Åsman, J-E. Augustin, A. Augustinus, P. Baillon, P. Bambade, F. Barao, G. Barbiellini, R. Barbier, D.Y. Bardin, G. Barker, A. Baroncelli, M. Battaglia, M. Baubillier, K-H. Becks, M. Begalli, A. Behrmann, P. Beilliere, Yu. Belokopytov, N.C. Benekos, A.C. Benvenuti, C. Berat, M. Berggren, D. Bertrand, M. Besancon, M. Bigi, M.S. Bilenky, M-A. Bizouard, D. Bloch, H.M. Blom, M. Bonesini, M. Boonekamp, P.S.L. Booth, A.W. Borgland, G. Borisov, C. Bosio, O. Botner, E. Boudinov, B. Bouquet, C. Bourdarios, T.J.V. Bowcock, I. Boyko, I. Bozovic, M. Bozzo, M. Bracko, P. Branchini, R.A. Brenner, P. Bruckman, J-M. Brunet, L. Bugge, T. Buran, B. Buschbeck, P. Buschmann, S. Cabrera, M. Caccia, M. Calvi, T. Camporesi, V. Canale, F. Carena, L. Carroll, C. Caso, M.V. Castillo Gimenez, A. Cattai, F.R. Cavallo, V. Chabaud, Ph. Charpentier, P. Checchia, G.A. Chelkov, R. Chierici, P. Chliapnikov, P. Chochula, V. Chorowicz, J. Chudoba, K. Cieslik, P. Collins, R. Contri, E. Cortina, G. Cosme, F. Cossutti, H.B. Crawley, D. Crennell, S. Crepe, G. Crosetti, J. Cuevas Maestro, S. Czellar, M. Davenport, W. Da Silva, G. Della Ricca, P. Delpierre, N. Demaria, A. De Angelis, W. De Boer, C. De Clercq, B. De Lotto, A. De Min, L. De Paula, H. Dijkstra, L. Di Ciaccio, J. Dolbeau, K. Doroba, M. Dracos, J. Drees, M. Dris, A. Duperrin, J-D. Durand, G. Eigen, T. Ekelof, G. Ekspong, M. Ellert, M. Elsing, J-P. Engel, M. Espirito Santo, G. Fanourakis, D. Fassouliotis, J. Fayot, M. Feindt, A. Ferrer, E. Ferrer-Ribas, F. Ferro, S. Fichet, A. Firestone, U. Flagmeyer, H. Foeth, E. Fokitis, F. Fontanelli, B. Franek, A.G. Frodesen, R. Fruhwirth, F. Fulda-Quenzer, J. Fuster, A. Galloni, D. Gamba, S. Gamblin, M. Gandelman, C. Garcia, C. Gaspar, M. Gaspar, U. Gasparini, Ph. Gavillet, E.N. Gazis, D. Gele, T. Geralis, L. Gerdyukov, N. Ghodbane, I. Gil, F. Glege, R. Gokieli, B. Golob, G. Gomez-Ceballos, P. Goncalves, I. Gonzalez Caballero, G. Gopal, L. Gorn, Yu. Gouz, V. Gracco, J. Grahl, E. Graziani, P. Gris, G. Grosdidier, K. Grzelak, J. Guy, C. Haag, F. Hahn, S. Hahn, S. Haider, A. Hallgren, K. Hamacher, J. Hansen, F.J. Harris, V. Hedberg, S. Heising, J.J. Hernandez, P. Herquet, H. Herr, T.L. Hessing, J.-M. Heuser, E. Higon, S-O. Holmgren, P.J. Holt, S. Hoorelbeke, M. Houlden, J. Hrubec, M. Huber, K. Huet, G.J. Hughes, K. Hultqvist, J.N. Jackson, R. Jacobsson, P. Jalocha, R. Janik, Ch. Jarlskog, G. Jarlskog, P. Jarry, B. Jean-Marie, D. Jeans, E.K. Johansson, P. Jonsson, C. Joram, P. Juillot, L. Jungermann, F. Kapusta, K. Karafasoulis, S. Katsanevas, E.C. Katsoufis, R. Keranen, G. Kernel, B.P. Kersevan, Yu. Khokhlov, B.A. Khomenko, N.N. Khovanski, A. Kiiskinen, B. King, A. Kinvig, N.J. Kjaer, O. Klapp, H. Klein, P. Kluit, P. Kokkinias, V. Kostioukhine, C. Kourkoumelis, O. Kouznetsov, M. Krammer, E. Kriznic, Z. Krumstein, P. Kubinec, J. Kurowska, K. Kurvinen, J.W. Lamsa, D.W. Lane, J-P. Laugier, R. Lauhakangas, G. Leder, F. Ledroit, V. Lefebure, L. Leinonen, A. Leisos, R. Leitner, G. Lenzen, V. Lepeltier, T. Lesiak, M. Lethuillier, J. Libby, W. Liebig, D. Liko, A. Lipniacka, I. Lippi, B. Loerstad, J.G. Loken, J.H. Lopes, J.M. Lopez, R. Lopez-Fernandez, D. Loukas, P. Lutz, L. Lyons, J. MacNaughton, J.R. Mahon, A. Maio, A. Malek, T.G.M. Malmgren, S. Maltezos, V. Malychev, F. Mandl, J. Marco, R. Marco, B. Marechal, M. Margoni, J-C. Marin, C. Mariotti, A. Markou, C. Martinez-Rivero, F. Martinez-Vidal, S. Marti i Garcia, J. Masik, N. Mastroyiannopoulos, F. Matorras, C. Matteuzzi, G. Matthiae, F. Mazzucato, M. Mazzucato, M. Mc Cubbin, R. Mc Kay, R. Mc Nulty, G. Mc Pherson, C. Meroni, W.T. Meyer, E. Migliore, L. Mirabito, W.A. Mitaroff, U. Mjoernmark, T. Moa, M. Moch, R. Moeller, K. Moenig, M.R. Monge, D. Moraes, X. Moreau, P. Morettini, G. Morton, U. Mueller, K. Muenich, M. Mulders, C. Mulet-Marquis, R. Muresan, W.J. Murray, B. Muryn, G. Myatt, T. Myklebust, F. Naraghi, M. Nassiakou, F.L. Navarria, S. Navas, K. Nawrocki, P. Negri, N. Neufeld, R. Nicolaidou, B.S. Nielsen, P. Niezurawski, M. Nikolenko, V. Nomokonov, A. Nygren, V. Obraztsov, A.G. Olshevski, A. Onofre, R. Orava, G. Orazi, K. Osterberg, A. Ouraou, M. Paganoni, S. Paiano, R. Pain, R. Paiva, J. Palacios, H. Palka, Th.D. Papadopoulou, L. Pape, C. Parkes, F. Parodi, U. Parzefall, A. Passeri, O. Passon, T. Pavel, M. Pegoraro, L. Peralta, M. Pernicka, A. Perrotta, C. Petridou, A. Petrolini, H.T. Phillips, F. Pierre, M. Pimenta, E. Piotto, T. Podobnik, M.E. Pol, G. Polok, P. Poropat, V. Pozdniakov, P. Privitera, N. Pukhaeva, A. Pullia, D. Radojicic, S. Ragazzi, H. Rahmani, J. Rames, P.N. Ratoff, A.L. Read, P. Rebecchi, N.G. Redaelli, M. Regler, J. Rehn, D. Reid, R. Reinhardt, P.B. Renton, L.K. Resvanis, F. Richard, J. Ridky, G. Rinaudo, I. Ripp-Baudot, O. Rohne, A. Romero, P. Ronchese, E.I. Rosenberg, P. Rosinsky, P. Roudeau, T. Rovelli, Ch. Royon, V. Ruhlmann-Kleider, A. Ruiz, H. Saarikko, Y. Sacquin, A. Sadovsky, G. Sajot, J. Salt, D. Sampsonidis, M. Sannino, Ph. Schwemling, B. Schwering, U. Schwickerath, F. Scuri, P. Seager, Y. Sedykh, A.M. Segar, N. Seibert, R. Sekulin, R.C. Shellard, M. Siebel, L. Simard, F. Simonetto, A.N. Sisakian, G. Smadja, N. Smirnov, O. Smirnova, G.R. Smith, A. Sokolov, A. Sopczak, R. Sosnowski, T. Spassov, E. Spiriti, S. Squarcia, C. Stanescu, S. Stanic, M. Stanitzki, K. Stevenson, A. Stocchi, J. Strauss, R. Strub, B. Stugu, M. Szczekowski, M. Szeptycka, T. Tabarelli, A. Taffard, O. Tchikilev, F. Tegenfeldt, F. Terranova, J. Thomas, J. Timmermans, N. Tinti, L.G. Tkatchev, M. Tobin, S. Todorova, A. Tomaradze, B. Tome, A. Tonazzo, L. Tortora, P. Tortosa, G. Transtromer, D. Treille, G. Tristram, M. Trochimczuk, C. Troncon, M-L. Turluer, I.A. Tyapkin, P. Tyapkin, S. Tzamarias, O. Ullaland, V. Uvarov, G. Valenti, E. Vallazza, C. Vander Velde, P. Van Dam, W. Van den Boeck, W.K. Van Doninck, J. Van Eldik, A. Van Lysebetten, N. van Remortel, I. Van Vulpen, G. Vegni, L. Ventura, W. Venus, F. Verbeure, P. Verdier, M. Verlato, L.S. Vertogradov, V. Verzi, D. Vilanova, L. Vitale, E. Vlasov, A.S. Vodopyanov, G. Voulgaris, V. Vrba, H. Wahlen, C. Walck, A.J. Washbrook, C. Weiser, D. Wicke, J.H. Wickens, G.R. Wilkinson, M. Winter, M. Witek, G. Wolf, J. Yi, O. Yushchenko, A. Zalewska, P. Zalewski, D. Zavrtanik, E. Zevgolatakos, N.I. Zimin, A. Zintchenko, Ph. Zoller, G.C. Zucchelli, and G. Zumerle

Subjects
Physics, Nuclear and High Energy Physics, Particle physics, Chargino, 010308 nuclear & particles physics, 0103 physical sciences, Neutralino, Gravitino, 010306 general physics, 01 natural sciences, Resonance (particle physics), Energy (signal processing)
Abstract

An update of the searches for charginos and gravitinos is presented, based on a data sample corresponding to the 158 pb^{-1} recorded by the DELPHI detector in 1998, at a centre-of-mass energy of 189 GeV. No evidence for a signal was found. The lower mass limits are 4-5 GeV/c^2 higher than those obtained at a centre-of-mass energy of 183 GeV. The (\mu,M_2) MSSM domain excluded by combining the chargino searches with neutralino searches at the Z resonance implies a limit on the mass of the lightest neutralino which, for a heavy sneutrino, is constrained to be above 31.0 GeV/c^2 for tan(beta) \geq 1.

Published
2000

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