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1. Spastic paraplegia preceding psen1-related familial alzheimer’s disease

Author

Chelban, V. Breza, M. Szaruga, M. Vandrovcova, J. Murphy, D. Lee, C.-J. Alikhwan, S. Bourinaris, T. Vavougios, G. Ilyas, M. Halim, S.A. Al-Harrasi, A. Kartanou, C. Ronald, C. Blumcke, I. Alexoudi, A. Gatzonis, S. Stefanis, L. Karadima, G. Wood, N.W. Chávez-Gutiérrez, L. Hardy, J. Houlden, H. Koutsis, G.

Abstract

Introduction: We investigated the frequency, neuropathology, and phenotypic characteristics of spastic paraplegia (SP) that precedes dementia in presenilin 1 (PSEN1) related familial Alzheimer’s disease (AD). Methods: We performed whole exome sequencing (WES) in 60 probands with hereditary spastic paraplegia (HSP) phenotype that was negative for variants in known HSP-related genes. Where PSEN1 mutation was identified, brain biopsy was performed. We investigated the link between HSP and AD with PSEN1 in silico pathway analysis and measured in vivo the stability of PSEN1 mutant γ-secretase. Results: We identified a PSEN1 variant (p.Thr291Pro) in an individual presenting with pure SP at 30 years of age. Three years later, SP was associated with severe, fast cognitive decline and amyloid deposition with diffuse cortical plaques on brain biopsy. Biochemical analysis of p.Thr291Pro PSEN1 revealed that although the mutation does not alter active γ-secretase reconstitution, it destabilizes γ-secretase-amyloid precursor protein (APP)/amyloid beta (Aβn) interactions during proteolysis, enhancing the production of longer Aβ peptides. We then extended our analysis to all 226 PSEN1 pathogenic variants reported and show that 7.5% were associated with pure SP onset followed by cognitive decline later in the disease. We found that PSEN1 cases mani-festing initially as SP have a later age of onset, are associated with mutations located beyond codon 200, and showed larger diffuse, cored plaques, amyloid-ring arteries, and severe CAA. Discussion: We show that pure SP can precede dementia onset in PSEN1-related familial AD. We recommend PSEN1 genetic testing in patients presenting with SP with no variants in known HSP-related genes, particularly when associated with a family his-tory of cognitive decline. © 2021 The Authors. Alzheimer’s & Dementia: Diagnosis, Assessment & Disease Monitoring published by Wiley Periodicals, LLC on behalf of Alzheimer’s Association.

Published
2021

3. Assessment of Parkinson's disease risk loci in Greece

Author

Kara, E. Xiromerisiou, G. Spanaki, C. Bozi, M. Koutsis, G. Panas, M. Dardiotis, E. Ralli, S. Bras, J. Letson, C. Edsall, C. Pliner, H. Arepalli, S. Kalinderi, K. Fidani, L. Bostantjopoulou, S. Keller, M.F. Wood, N.W. Hardy, J. Houlden, H. Stefanis, L. Plaitakis, A. Hernandez, D. Hadjigeorgiou, G.M. Nalls, M.A. Singleton, A.B.

Abstract

Genome-wide association studies (GWAS) have been shown to be a powerful approach to identify risk loci for neurodegenerative diseases. Recent GWAS in Parkinson's disease (PD) have been successful in identifying numerous risk variants pointing to novel pathways potentially implicated in the pathogenesis of PD. Contributing to these GWAS efforts, we performed genotyping of previously identified risk alleles in PD patients and control subjects from Greece. We showed that previously published risk profiles for Northern European and American populations are also applicable to the Greek population. In addition, although our study was largely underpowered to detect individual associations, we replicated 5 of 32 previously published risk variants with nominal p values

Published
2014

4. Intravenous intralipid infusion in hepatic steatosis: an in vivo hepatic phosphorus-31 magnetic resonance spectroscopy study

Author

Gabriele Jenkinson, Simon D. Taylor-Robinson, Jane E Schwieso, John P. Seery, Henry J Houlden, Humphrey Hodgson, David J. Bryant, and K. Kumar Changani

Subjects
chemistry.chemical_classification, medicine.medical_specialty, Hepatology, Triglyceride, business.industry, Fatty acid, Stimulation, medicine.disease, Gastroenterology, Surgery, chemistry.chemical_compound, Liver disease, Infectious Diseases, chemistry, In vivo, Internal medicine, medicine, Steatosis, business, Beta oxidation, Polyunsaturated fatty acid
Abstract

We report the case of an insulin-dependent diabetic with persistent abdominal pain secondary to non-alcohol-related hepatic steatosis which was unrelieved with standard analgesia. The pain responded to regular intravenous infusion of polyunsaturated fatty acids (intralipid 10%). In vivo hepatic magnetic resonance spectroscopy (MRS) and in vitro proton MRS of plasma in the patient and also in three healthy volunteers demonstrated metabolic changes consistent with intralipid induced stimulation of hepatic fatty acid P-oxidation. Pharmacological stimulation of endogenous hepatic fatty acid oxidation as a therapeutic approach in hepatic steatosis is worthy of further investigation. 1998 Elsevier Science Ireland Ltd. All rights reserved.

Published
1998

5. MErCuRIC1: A phase 1a study of MEK1/2 inhibitor PD-0325901 with cMET inhibitor crizotinib in patients with advanced solid tumours

Author

Sharon Love, Margaret Grayson, J Houlden, Vlad Popovici, Christian Rolfo, Mark Lawler, Tim Maughan, Corran Roberts, F. Di Nicolantonio, Marc Peeters, S. Van Schaeybroeck, Elena Elez, J Taieb, J. Tabernero, Richard H. Wilson, Manuel Salto-Tellez, Alberto Bardelli, T. Andre, Pierre Laurent-Puig, and Mark R. Middleton

Subjects
0301 basic medicine, Crizotinib, business.industry, Hematology, 03 medical and health sciences, 030104 developmental biology, 0302 clinical medicine, Oncology, 030220 oncology & carcinogenesis, Phase (matter), Cancer research, Medicine, In patient, business, medicine.drug
Abstract

RAS activating mutations occur in ∼55% of metastatic (m) CRC. RASMT and >50% of RASWT mCRC patients (pts) do not benefit from anti-EGFR antibodies. c-MET is overexpressed in ∼50-60%, amplified in ∼2-3% and mutated in ∼1-3% of mCRC. Preclinical data support the clinical evaluation of MEK1/2 and METi, in particular in RASMT tumours and RASWT with aberrant c-MET expression. The primary aim of the phase I study was to establish the maximum tolerated dose (MTD) and assess safety/toxicity profile of PD-0325901 MEKi & crizotinib METi in pts with advanced solid tumours using NCI CTCAE V4.03.

Published
2016

6. Traumatic bicycle handlebar hernia

Author

D.C. Gosling, Chris J. Houlden, Steven C.J. Goh, and Catherine Welch

Subjects
Adult, Male, medicine.medical_specialty, Jejunal perforation, Poison control, Wounds, Nonpenetrating, Abdominal wall, medicine, Humans, Hernia, Traumatic hernia, business.industry, Accidents, Traffic, medicine.disease, digestive system diseases, Surgery, Bicycling, Hernia, Abdominal, stomatognathic diseases, surgical procedures, operative, medicine.anatomical_structure, Jejunum, Handlebar hernia, Blunt trauma, Intestinal Perforation, Emergency Medicine, Presentation (obstetrics), business
Abstract

High velocity impact by handlebar is a rare cause of abdominal wall hernia following blunt trauma. We report a case of bicycle handlebar induced traumatic hernia with jejunal perforation. This case demonstrates that presentation of a traumatic hernia can be delayed and that computed tomographic scanning is useful in confirming the diagnosis. Surgical exploration with primary repair of the defect is the definitive treatment in cases of traumatic hernia. Language: en

Published
2008

7. Measurement of the mass and width of the W boson in e(+) e(-) collisions at root s=161-209 GeV

Author

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

Subjects
High Energy Physics::Experiment, Nuclear Experiment
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- -> l (nu) over bar (l) and W+W- -> q (q) over bar’(q) over barq’channels. The W mass result for the combined data set is M-W = 80.336 +/- 0.055(Stat.) +/- 0.028(Syst.) +/- 0.025(FSI) +/- 0.009(LEP) GeV/c(2) , where FSI represents the uncertainty due to final state interaction effects in the q (q) over bar’(q) over barq’ 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 +/- 0.140(Stat.) +/- 0.077(Syst.) +/- 0.065(FSI) GeV/c(2). These results supersede all values previously published by the DELPHI collaboration.

Published
2008

8. Investigation of colour reconnection in WW events with the DELPHI detector at LEP-2

Author

Abdallah, J. Abreu, P. Adam, W. Adzic, P. Albrecht, T. and Alemany-Fernandez, R. Allmendinger, T. Allport, P. P. and Amaldi, U. Amapane, N. Amato, S. Anashkin, E. Andreazza, A. Andringa, S. Anjos, N. Antilogus, P. Apel, W-D. and Arnoud, Y. Ask, S. Asman, B. Augustin, J. E. Augustinus, A. Baillon, P. Ballestrero, A. Bambade, P. Barbier, R. and Bardin, D. Barker, G. J. Baroncelli, A. Battaglia, M. and Baubillier, M. Becks, K-H. Begalli, M. Behrmann, A. and Ben-Haim, E. Benekos, N. Benvenuti, A. Berat, C. and Berggren, M. Berntzon, L. Bertrand, D. Besancon, M. and Besson, N. Bloch, D. Blom, M. Bluj, M. Bonesini, M. and Boonekamp, M. Booth, P. S. L. Borisov, G. Botner, O. and Bouquet, B. Bowcock, T. J. V. Boyko, I. Bracko, M. and Brenner, R. Brodet, E. Bruckman, P. Brunet, J. M. and Buschbeck, B. Buschmann, P. Calvi, M. Camporesi, T. and Canale, V. Carena, F. Castro, N. Cavallo, F. Chapkin, M. and Charpentier, Ph. Checchia, P. Chierici, R. Chliapnikov, P. Chudoba, J. Chung, S. U. Cieslik, K. Collins, P. and Contri, R. Cosme, G. Cossutti, F. Costa, M. J. 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. Santo, M. C. Espirito Fanourakis, G. Fassouliotis, D. Feindt, M. and Fernandez, J. Ferrer, A. Ferro, F. Flagmeyer, U. and Foeth, H. Fokitis, E. Fulda-Quenzer, F. Fuster, J. and Gandelman, M. Garcia, C. Gavillet, Ph. Gazis, E. and Gokieli, R. Golob, B. Gomez-Ceballos, G. Goncalves, P. and Graziani, E. Grosdidier, G. Grzelak, K. Guy, J. Haag, C. and Hallgren, A. Hamacher, K. Hamilton, K. Haug, S. and Hauler, F. Hedberg, V. Hennecke, M. Herr, H. Hoffman, J. and Holmgren, S-O. Holt, P. J. Houlden, M. A. Jackson, J. N. and Jarlskog, G. Jarry, P. Jeans, D. Johansson, E. K. and Johansson, P. D. Jonsson, P. Joram, C. Jungermann, L. and Kapusta, F. Katsanevas, S. Katsoufis, E. Kernel, G. and Kersevan, B. P. Kerzel, U. King, B. T. Kjaer, N. J. and Kluit, P. Kokkinias, P. Kourkoumelis, C. Kouznetsov, O. and Krumstein, Z. Kucharczyk, M. Lamsa, J. Leder, G. and Ledroit, F. Leinonen, L. Leitner, R. Lemonne, J. and Lepeltier, V. Lesiak, T. Liebig, W. Liko, D. Lipniacka, A. Lopes, J. H. Lopez, J. M. Loukas, D. Lutz, P. and Lyons, L. MacNaughton, J. Malek, A. Maltezos, S. Mandl, F. Marco, J. Marco, R. Marechal, B. Margoni, M. and Marin, J-C. Mariotti, C. Markou, A. Martinez-Rivero, C. and Masik, J. Mastroyiannopoulos, N. Matorras, F. Matteuzzi, C. and Mazzucato, F. Mazzucato, M. Mc Nulty, R. Meroni, C. and Migliore, E. Mitaro, W. Mjoernmark, U. Moa, T. Moch, M. and Moenig, K. Monge, R. Montenegro, J. Moraes, D. and Moreno, S. Morettini, P. Mueller, U. Muenich, K. and Mulders, M. Mundim, L. Murray, W. Muryn, B. Myatt, G. and Myklebust, T. Nassiakou, M. Navarria, F. Nawrocki, K. and Nicolaidou, R. Nikolenko, M. Oblakowska-Mucha, A. and Obraztsov, V. Olshevski, A. Onofre, A. Orava, R. and Osterberg, K. Ouraou, A. Oyanguren, A. Paganoni, M. and Paiano, S. Palacios, J. P. Palka, H. Papadopoulou, Th. D. and Pape, L. Parkes, C. Parodi, F. Parzefall, U. and Passeri, A. Passon, O. Peralta, L. Perepelitsa, V. and Perrotta, A. Petrolini, A. Piedra, J. Pieri, L. Pierre, F. Pimenta, M. Piotto, E. Podobnik, T. Poireau, V. and Pol, M. E. Polok, G. Pozdniakov, V. Pukhaeva, N. Pullia, A. Rames, J. Read, A. Rebecchi, P. Rehn, J. Reid, D. and Reinhardt, R. Renton, P. Richard, F. Ridky, J. and Rivero, M. Rodriguez, D. Romero, A. Ronchese, P. and Roudeau, P. Rovelli, T. Ruhlmann-Kleider, V. Ryabtchikov, D. and Sadovsky, A. Salmi, L. Salt, J. Sander, C. and Savoy-Navarro, A. Schwickerath, U. Sekulin, R. Siebel, M. and Sisakian, A. Smadja, G. Smirnova, O. Sokolov, A. and Sopczak, A. Sosnowski, R. Spassov, T. Stanitzki, M. and Stocchi, A. Strauss, J. Stugu, B. Szczekowski, M. and Szeptycka, M. Szumlak, T. Tabarelli, T. Taffard, A. C. and Tegenfeldt, F. Timmermans, J. Tkatchev, L. Tobin, M. and Todorovova, S. Tome, B. Tonazzo, A. Tortosa, P. and Travnicek, P. Treille, D. Tristram, G. Trochimczuk, M. and Troncon, C. Turluer, M-L. Tyapkin, I. A. Tyapkin, P. and Tzamarias, S. Uvarov, V. Valenti, G. Van Dam, P. Van Eldik, J. Van Remortel, N. Van Vulpen, I. Vegni, G. and Veloso, F. Venus, W. Verdier, P. Verzi, V. Vilanova, D. and Vitale, L. Vrba, V. Wahlen, H. Washbrook, A. J. and Weiser, C. Wicke, D. Wickens, J. Wilkinson, G. Winter, M. Witek, M. Yushchenko, O. Zalewska, A. Zalewski, P. and Zavrtanik, D. Zhuravlov, V. Zimin, N. I. Zintchenko, A. and Zupan, M.

Subjects
High Energy Physics::Phenomenology, High Energy Physics::Experiment
Abstract

In the reaction e(+)e(-) -> WW -> (q(1) (q) over bar (2))(q(3)(q) over bar (4)) the usual hadronization models treat the colour singlets q(1)(q) over bar (2) and q(3)(q) over bar (4) coming from two W bosons independently. However, since the. nal state partons may coexist in space and time, cross-talk between the two evolving hadronic systems may be possible during fragmentation through soft gluon exchange. This e. ect is known as colour reconnection. In this article the results of the investigation of colour reconnection e. ects in fully hadronic decays of W pairs in DELPHI at LEP are presented. Two complementary analyses were performed, studying the particle. ow between jets and W mass estimators, with negligible correlation between them, and the results were combined and compared to models. In the framework of the SK-I model, the value for its. parameter most compatible with the data was found to be: (SK)-S-kappa-I = 2.2(-1.3) (+2.5) corresponding to the probability of reconnection P-reco to be in the range 0.31 < P-reco < 0.68 at 68% confidence level with its best value at 0.52.

Published
2007

9. MErCuRIC1: A Phase I study of MEK1/2 inhibitor PD-0325901 with cMET inhibitor crizotinib in RASMT and RASWT (with aberrant c-MET) metastatic colorectal cancer (mCRC) patients

Author

T. Andre, Mark Lawler, Marc Peeters, Manuel Salto-Tellez, L Collins, S. Van Schaeybroeck, Alberto Bardelli, J Houlden, Tim Maughan, Pierre Laurent-Puig, Christian Rolfo, Richard H. Wilson, Margaret Grayson, F. Di Nicolantonio, Elena Elez, J. Tabernero, Mark R. Middleton, Vlad Popovici, Sharon Love, and S Kelly

Subjects
Cancer Research, C-Met, Crizotinib, Colorectal cancer, business.industry, medicine.disease, digestive system diseases, 3. Good health, Phase i study, chemistry.chemical_compound, Oncology, chemistry, Immunology, medicine, Cancer research, business, medicine.drug
Abstract

TPS3632 Background: RAS is mutated (RASMT) in ~55% of mCRC, and phase III studies have shown that patients harbouring RAS mutations do not benefit from anti-EGFR MoAbs. In addition, ~50% of RAS Wil...

Published
2015

10. Masses, lifetimes and production rates of Xi(-) and Xi(+) at LEP 1

Author

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

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. (c) 2006 Elsevier B.V. All rights reserved.

Published
2006

11. Single intermediate vector boson production in e(+)e(-) collisions at root s=183-209 GeV

Author

Abdallah, J. Abreu, P. Adam, W. Adzic, P. Albrecht, T. and Alderweireld, T. Alemany-Fernandez, R. Allmendinger, T. and Allport, P. Amaldi, U. Amapane, N. Amato, S. Anashkin, E. Andreazza, A. Andringa, S. Anjos, N. Antilogus, P. and Apel, W. -D. Arnoud, Y. Ask, S. Asman, B. Augustin, E. Augustinus, A. Baillon, P. Ballestrero, A. Bambade, P. Barbier, R. Bardin, D. Barker, J. Baroncelli, A. and Battaglia, M. Baubillier, M. Becks, K. -H. Begalli, M. and Behrmann, A. Ben-Haim, E. Benekos, N. Benvenuti, A. and Berat, C. Berggren, M. Berntzon, L. Bertrand, D. and Besancon, M. Besson, N. Bloch, D. Blom, M. Bluj, M. and Bonesini, M. Boonekamp, M. Booth, L. Borisov, G. Botner, O. Bouquet, B. Bowcock, V. Boyko, I. Bracko, M. and Brenner, R. Brodet, E. Bruckman, P. Brunet, M. and Buschmann, P. Calvi, M. Camporesi, T. Canale, V. Carena, F. Castro, N. Cavallo, F. Chapkin, M. Charpentier, Ph. and Checchia, P. Chierici, R. Chliapnikov, P. Chudoba, J. and Chung, U. Cieslik, K. Collins, P. Contri, R. Cosme, G. Cossutti, F. Costa, J. Crennelll, D. Cuevas, J. and 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. and Ekelof, T. Ellert, M. Elsing, M. Santo, C. Espirito and Fanourakis, G. Fassouliotis, D. Feindt, M. Fernandez, J. and Ferrero, A. Ferro, F. Flagmeyer, U. Foeth, H. Fokitis, E. Fulda-Quenzer, F. Fuster, J. Gandelman, M. Garcia, C. and Gavillet, Ph. Gazis, E. Gokieli, R. Golob, B. and Gomez-Ceballos, G. Goncalves, P. Graziani, E. Grosdidier, G. and Grzelak, K. Guy, J. Haag, C. Hallgren, A. Hamacher, K. Hamilton, K. Haug, S. Hauler, F. Hedberg, V. and Hennecke, M. Herr, H. Hoffman, J. Holmgren, S. -O. Holt, J. Houlden, A. Hultqvist, K. Jackson, N. Jarlskog, G. and Jarry, P. Jeans, D. Johansson, K. Johansson, D. and Jonsson, P. Joram, C. Jungermann, L. Kapusta, F. and Katsanevas, S. Katsoufis, E. Kernel, G. Kersevan, P. and Kerzel, U. King, T. Kjaer, J. Kluit, P. Kokkinias, P. and Kourkoumelis, C. Kouznetsov, O. Krumstein, Z. and Kucharczyk, M. Lamsa, J. Leder, G. Ledroit, F. Leinonen, L. Leitner, R. Lemonne, J. Lepeltier, V. Lesiak, T. and Liebig, W. Liko, D. Lipniacka, A. Lopes, H. Lopez, M. and Loukas, D. Lutz, P. Lyons, L. MacNaughton, J. Malek, A. Maltezos, S. Mandl, F. Marco, J. Marco, R. and Marechal, B. Margoni, M. Marin, J. -C. Mariotti, C. and 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. and Mjoernmark, U. Moa, T. Moch, M. Moenig, K. Monge, R. and Montenegro, J. Moraes, D. Moreno, S. Morettini, P. and Mueller, U. Muenich, K. Mulders, M. Mundim, L. Murray, W. Muryn, B. Myatt, G. Myklebust, T. Nassiakou, M. and Navarria, F. Nawrocki, K. Nicolaidou, R. Nikolenko, M. and Oblakowska-Mucha, A. Obraztsov, V. Olshevski, A. Onofre, A. and Orava, R. Osterberg, K. Ouraou, A. Oyanguren, A. and Paganoni, M. Paiano, S. Palacios, P. Palka, H. and Papadopoulou, D. Pape, L. Parkes, C. Parodi, F. and Parzefall, U. Passeri, A. Passon, O. Peralta, L. and Perepelitsa, V. Perrotta, A. Petrolini, A. Piedra, J. and Pieri, L. Pierre, F. Pimenta, M. Piotto, E. Podobnik, T. and Poireau, V. Pol, E. Polok, G. Pozdniakov, V. and Pukhaeva, N. Pullia, A. Rames, J. Read, A. Rebecchi, P. and Rehn, J. Reid, D. Reinhardt, R. Renton, P. Richard, F. Ridky, J. Rivero, M. Rodriguez, D. Romero, A. and Ronchese, P. Roudeau, P. Rovelli, T. Ruhlmann-Kleider, V. and Ryabtchikov, D. Sadovsky, A. Salmi, L. Salt, J. and Sander, C. Savoy-Navarro, A. Schwickerath, U. Segar, A. and Sekulin, R. Siebel, M. Sisakian, A. Smadja, G. Smirnova, O. Sokolov, A. Sopczak, A. Sosnowski, R. Spassov, T. and Stanitzki, M. Stocchi, A. Strauss, J. Stugu, B. and Szczekowski, M. Szeptycka, M. Szumlak, T. Tabarelli, T. and Taffard, C. Tegenfeldt, F. Timmermans, J. Tkatchev, L. and Tobin, M. Todorovova, S. Tome, B. Tonazzo, A. Tortosa, P. Travnicek, P. Treille, D. Tristram, G. Trochimczuk, M. Troncon, C. Turluer, M. -L. Tyapkin, A. Tyapkin, P. and Tzamarias, S. Uvarov, V. Valenti, G. Van Dam, P. Van Eldik, J. van Remortel, N. Van Vulpen, I. Vegni, G. and Velos, F. Venus, W. Verdier, P. Verzi, V. Vilanova, D. and Vitale, L. Vrba, V. Wahlen, H. Washbrook, J. Weiser, C. Wicke, D. Wickens, J. Wilkinson, G. Winter, M. and Witek, M. Yushchenko, O. Zalewska, A. Zalewski, P. and Zavrtanik, D. Zhuravlov, V. Zimin, I. Zintchenko, A. and Zupan, M. DELPHI Collaboration

Subjects
High Energy Physics::Experiment, Nuclear Experiment
Abstract

The production of single charged and neutral intermediate vector bosons in e(+)e(-) collisions has been studied in the data collected by the DELPHI experiment at LEP at centre-of-mass energies between 183 and 209 GeV, corresponding to an integrated luminosity of about 640 pb(-1). The measured cross-sections for the reactions, determined in limited kinematic regions, are in agreement with the Standard Model predictions.

Published
2006

12. Determination of heavy quark non-perturbative parameters from spectral moments in semileptonic B decays

Author

Abdallah, J. Abreu, P. Adam, W. Adzic, P. Albrecht, T. Alderweireld, 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.-D. Arnoud, Y. Ask, S. Asman, B. Augustin, E. Augustinus, A. Baillon, P. Ballestrero, A. Bambade, P. Barbier, R. Bardin, D. Barker, J. Baroncelli, A. Battaglia, M. Baubillier, M. Becks, K.-H. 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, L. Borisov, G. Botner, O. Bouquet, B. Bowcock, V. Boyko, I. Bracko, M. Brenner, R. Brodet, E. Bruckman, P. Brunet, M. 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, U. Cieslik, K. Collins, P. Contri, R. Cosme, G. Cossutti, F. Costa, J. 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, C. 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.-O. Holt, J. Houlden, A. Hultqvist, K. Jackson, N. Jarlskog, G. Jarry, P. Jeans, D. Johansson, K. Johansson, D. Jonsson, P. Joram, C. Jungermann, L. Kapusta, F. Katsanevas, S. Katsoufis, E. Kernel, G. Kersevan, P. Kerzel, U. King, T. Kjaer, J. 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, H. Lopez, M. Loukas, D. Lutz, P. Lyons, L. MacNaughton, J. Malek, A. Maltezos, S. Mandl, F. Marco, J. Marco, R. Marechal, B. Margoni, M. Marin, J.-C. 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, P. Palka, H. Papadopoulou, D. 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, E. 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. Segar, A. Sekulin, R. Siebel, M. Sisakian, A. Smadja, G. Smirnova, O. Sokolov, A. Sopczak, A. Sosnowski, R. Spassov, T. Stanitzki, M. Stocchi, A. Strauss, J. Stugu, B. Szczekowski, M. Szeptycka, M. Szumlak, T. Tabarelli, T. Taffard, C. 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.-L. Tyapkin, A. 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, J. Weiser, C. Wicke, D. Wickens, J. Wilkinson, G. Winter, M. Witek, M. Yushchenko, O. Zalewska, A. Zalewski, P. Zavrtanik, D. Zhuravlov, V. Zimin, I. Zintchenko, A. Zupan, M.

Subjects
High Energy Physics::Phenomenology, High Energy Physics::Experiment, Nuclear Experiment
Abstract

Moments of the hadronic invariant mass and of the lepton energy spectra in semileptonic B decays have been determined with the data recorded by the DELPHI detector at LEP. From measurements of the inclusive b-hadron semileptonic decays, and imposing constraints from other measurements on b- and c-quark masses, the first three moments of the lepton energy distribution and of the hadronic mass distribution, have been used to determine parameters which enter into the extraction of |Vcb| from the measurement of the inclusive b-hadron semileptonic decay width. The values obtained in the kinetic scheme are: mb(1 GeV) = 4.591 ± 0.062 ± 0.039 ± 0.005 GeV/c2, mc(1 GeV) = 1.170 ± 0.093 ± 0.055 ± 0.005 GeV/c2, μπ2(1 GeV) = 0.399 ± 0.048 ± 0.034 ± 0.087 GeV2, ∂̃D 3 = 0.053 ± 0.017 ± 0.011 ± 0.026 GeV3, and include corrections at order 1/m b 3, Using these results, and present measurements of the inclusive semileptonic decay partial width of b-hadrons at LEP, an accurate determination of |Vcb| is obtained: |Vcb| = 0.0421 × (1 ± 0.014meas. ± 0.014flt ± 0.015th.).

Published
2006

13. Study of leading hadrons in gluon and quark fragmentation

Author

Abdallah, J. Abreu, P. Adam, W. Adzic, P. Albrecht, T. and Alemany-Fernandez, R. Allmendinger, T. Allport, P. P. and Amaldi, U. Amapane, N. Amato, S. Anashkin, E. Andreazza, A. Andringa, S. Anjos, N. Antilogus, P. Apel, W. -D. and Arnoud, Y. Ask, S. Asman, B. Augustin, J. E. Augustinus, A. Baillon, P. Ballestrero, A. Bambade, P. Barbier, R. and Bardin, D. Barker, G. J. Baroncelli, A. Battaglia, M. and Baubillier, M. Becks, K. -H. Begalli, M. Behrmann, A. and Ben-Haim, E. Benekos, N. Benvenuti, A. Berat, C. and Berggren, M. Berntzon, L. Bertrand, D. Besancon, M. and Besson, N. Bloch, D. Blom, M. Bluj, M. Bonesini, M. and Boonekamp, M. Booth, P. S. L. Borisov, G. Botner, O. and Bouquet, B. Bowcock, T. J. V. Boyko, I. Bracko, M. and Brenner, R. Brodet, E. Bruckman, P. Brunet, J. M. and Buschbeck, B. Buschmann, P. Calvi, M. Camporesi, T. and Canale, V. Carena, F. Castro, N. Cavallo, F. Chapkin, M. and Charpentier, Ph. Checchia, P. Chierici, R. Chliapnikov, P. Chudoba, J. Chung, S. U. Cieslik, K. Collins, P. and Contri, R. Cosme, G. Cossutti, F. Costa, M. J. 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. and Espirito Santo, M. C. Fanourakis, G. Fassouliotis, D. and Feindt, M. Fernandez, J. Ferrer, A. Ferro, F. Flagmeyer, U. Foeth, H. Fokitis, E. Fulda-Quenzer, F. Fuster, J. and Gandelman, M. Garcia, C. Gavillet, Ph. Gazis, E. and Gokieli, R. Golob, B. Gomez-Ceballos, G. Goncalves, P. and Graziani, E. Grosdidier, G. Grzelak, K. Guy, J. Haag, C. and Hallgren, A. Hamacher, K. Hamilton, K. Haug, S. and Hauler, F. Hedberg, V. Hennecke, M. Herr, H. Hoffman, J. and Holmgren, S. -O. Holt, P. J. Houlden, M. A. Jackson, J. N. Jarlskog, G. Jarry, P. Jeans, D. Johansson, E. K. and Johansson, P. D. Jonsson, P. Joram, C. Jungermann, L. and Kapusta, F. Katsanevas, S. Katsoufis, E. Kernel, G. and Kersevan, B. P. Kerzel, U. King, B. T. Kjaer, N. J. and Kluit, P. Kokkinias, P. Kourkoumelis, C. Kouznetsov, O. and Krumstein, Z. Kucharczyk, M. Lamsa, J. Leder, G. and Ledroit, F. Leinonen, L. Leitner, R. Lemonne, J. and Lepeltier, V. Lesiak, T. Liebig, W. Liko, D. Lipniacka, A. Lopes, J. H. Lopez, J. M. Loukas, D. Lutz, P. and Lyons, L. MacNaughton, J. Malek, A. Maltezos, S. Mandl, F. Marco, J. Marco, R. Marechal, B. Margoni, M. and Marin, J. -C. Mariotti, C. Markou, A. Martinez-Rivero, C. and Masik, J. Mastroyiannopoulos, N. Matorras, F. Matteuzzi, C. Mazzucato, F. Mazzucato, M. Mc Nulty, R. Meroni, C. and Migliore, E. Mitaroff, W. Mjoernmark, U. Moa, T. and Moch, M. Moenig, K. Monge, R. Montenegro, J. Moraes, D. and Moreno, S. Morettini, P. Mueller, U. Muenich, K. and Mulders, M. Mundim, L. Murray, W. Muryn, B. Myatt, G. and Myklebust, T. Nassiakou, M. Navarria, F. Nawrocki, K. and Nicolaidou, R. Nikolenko, M. Oblakowska-Mucha, A. and Obraztsov, V. Olshevski, A. Onofre, A. Orava, R. and Osterberg, K. Ouraou, A. Oyanguren, A. Paganoni, M. and Paiano, S. Palacios, J. P. Palka, H. Papadopoulou, Th. D. and Pape, L. Parkes, C. Parodi, F. Parzefall, U. and Passeri, A. Passon, O. Peralta, L. Perepelitsa, V. and Perrotta, A. Petrolini, A. Piedra, J. Pieri, L. Pierre, F. Pimenta, M. Piotto, E. Podobnik, T. Poireau, V. and Pol, M. E. Polok, G. Pozdniakov, V. Pukhaeva, N. Pullia, A. Rames, J. Read, A. Rebecchi, P. Rehn, J. Reid, D. and Reinhardt, R. Renton, P. Richard, F. Ridky, J. and Rivero, M. Rodriguez, D. Romero, A. Ronchese, P. and Roudeau, P. Rovelli, T. Ruhlmann-Kleider, V. Ryabtchikov, D. and Sadovsky, A. Salmi, L. Salt, J. Sander, C. and Savoy-Navarro, A. Schwickerath, U. Sekulin, R. Siebel, M. and Sisakian, A. Smadja, G. Smirnova, O. Sokolov, A. and Sopczak, A. Sosnowski, R. Spassov, T. Stanitzki, M. and Stocchi, A. Strauss, J. Stugu, B. Szczekowski, M. and Szeptycka, M. Szumlak, T. Tabarelli, T. Taffard, A. C. and Tegenfeldt, F. Timmermans, J. Tkatchev, L. Tobin, M. and Todorovova, S. Tome, B. Tonazzo, A. Tortosa, P. and Travnicek, P. Treille, D. Tristram, G. Trochimczuk, M. and Troncon, C. Turluer, M. -L. Tyapkin, I. A. Tyapkin, P. and Tzamarias, S. Uvarov, V. Valenti, G. Van Dam, P. Van Eldik, J. van Remortel, N. Van Vulpen, I. Vegni, G. and Veloso, F. Venus, W. Verdier, P. Verzi, V. Vilanova, D. and Vitale, L. Vrba, V. Wahlen, H. Washbrook, A. J. and Weiser, C. Wicke, D. Wickens, J. Wilkinson, G. Winter, M. Witek, M. Yushchenko, O. Zalewska, A. Zalewski, P. and Zavrtanik, D. Zhuravlov, V. Zimin, N. I. Zintchenko, A. and Zupan, M. DELPHI Collaboration

Subjects
High Energy Physics::Lattice, High Energy Physics::Phenomenology, High Energy Physics::Experiment, Nuclear 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 (less than or similar to 2 GeV/c(2)) 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. (c) 2006 Elsevier B.V. All rights reserved.

Published
2006

14. Measurement of the energy dependence of hadronic jet rates and the strong coupling αs from the four-jet rate with the DELPHI detector at LEP

Author

Abdallah, J. Abreu, P. Adam, W. Adzic, P. Albrecht, T. Alderweireld, 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.-D. Arnoud, Y. Ask, S. Asman, B. Augustin, E. Augustinus, A. Baillon, P. Ballestrero, A. Bambade, P. Barbier, R. Bardin, D. Barker, G. Baroncelli, A. Battaglia, M. Baubillier, M. Becks, K.-H. 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, L. Borisov, G. Botner, O. Bouquet, B. Bowcock, V. Boyko, I. Bracko, M. Brenner, R. Brodet, E. Bruckman, P. Brunet, M. Bugge, L. Buschmann, P. Calvi, M. Camporesi, T. Canale, V. Carena, F. Castro, N. Cavallo, F. Chapkin, M. Charpentier, Ph. Checchia, P. Chierici, R. Chliapnikov, P. Chudoba, J. Chung, U. Cieslik, K. Collins, P. Contri, R. Cosme, G. Cossutti, F. Costa, J. Crennell, D. Cuevas, J. D'Hondt, J. Dalmau, J. Da Silva, T. Da Silva, W. Della Ricca, G. De Angelis, A. De Boer, W. De Clercq, C. De Lotto, B. De Maria, N. De Min, A. De Paula, L. Di Ciaccio, L. Di Simone, A. Doroba, K. Drees, J. Dris, M. Eigen, G. Ekelof, T. Ellert, M. Elsing, M. Espirito Santo, C. 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, Ph. 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.-O. Holt, J. Houlden, A. Hultqvist, K. Jackson, N. Jarlskog, G. Jarry, P. Jeans, D. Johansson, K. Johansson, D. Jonsson, P. Joram, C. Jungermann, L. Kapusta, F. Katsanevas, S. Katsoufis, E. Kernel, G. Kersevan, P. Kerzel, U. Kiiskinen, A. King, T. Kjaer, J. Kluit, P. Kokkinias, P. Kourkoumelis, C. Kouznetsov, O. Krumstein, Z. Kucharczyk, M. Lamsa, J. Leder, G. Ledroit, F. Leinoneii, L. Leitner, R. Lemonne, J. Lepeltier, V. Lesiak, T. Liebig, W. Liko, D. Lipniacka, A. Lopes, H. Lopez, M. Loukas, D. Lutz, P. Lyons, L. MacNaughton, J. Malek, A. Maltezos, S. Mandl, F. Marco, J. Marco, R. Marechal, B. Margoni, M. Marin, J.-C. 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, P. Palka, H. Papadopoulou, D. 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, E. Polok, G. Poropat, P. Pozdniakov, V. Pukhaeva, N. Pullia, A. Rames, J. Ramler, L. 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. Savoy-Navarro, A. Schwickerath, U. Segar, A. Sekulin, R. Siebel, M. Sisakian, A. Smadja, G. Smirnova, O. Sokolov, A. Sopczak, A. Sosnowski, R. Spassov, T. Stanitzki, M. Stocchi, A. Strauss, J. Stugu, B. Szczekowski, M. Szeptycka, M. Szumlak, T. Tabarelli, T. Taffard, C. 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.-L. Tyapkin, A. Tyapkin, P. Tzamarias, S. Uvarov, V. Valenti, G. Van Dam, P. Van Eldik, J. Van Lysebetten, A. Van Remortel, N. Van Vulpen, I. Vegni, G. Veloso, F. Venus, W. Verdier, P. Verzi, V. Vilanova, D. Vitale, L. Vrba, V. Wahlen, H. Washbrook, J. Weiser, C. Wicke, D. Wickens, J. Wilkinson, G. Winter, M. Witek, M. Yushchenko, O. Zalewska, A. Zalewski, P. Zavrtanik, D. Zhuravlov, V. Zimin, I. Zintchenko, A. Zupan, M.

Abstract

Hadronic events from the data collected with the DELPHI detector at LEP within the energy range from 89 GeV to 209 GeV are selected, their jet rates are determined and compared to predictions of four different event generators. One of them is the recently developed APACIC++ generator which performs a massive matrix element calculation matched to a parton shower followed by string fragmentation. The four-jet rate is used to measure αs in the next-to-leading-order approximation yielding αs(M Z 2) = 0.1175 ± 0.0030. The running of αs determined by using four-jet events has been tested. The logarithmic energy slope is measured to be dαs -1/d log Ecm = 1.14 ± 0.36. Since the analysis is based on four-jet final states it represents an alternative approach to previous DELPHI αs a measurements using event shape distributions. © Springer-Verlag/Società Italiana di Fisica 2004.

Published
2005

15. Bose-Einstein correlations in W+ W- events at LEP2

Author

Abdallah, J. Abreu, P. Adam, W. Adzic, P. Albrecht, Z. Alderweireld, 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-D. Arnoud, Y. Ask, S. Asman, B. Augustin, E. Augustinus, A. Baillon, P. Ballestrero, A. Bambade, P. Barbier, R. Bardin, D. Barker, G. Baroncelli, A. Battaglia, M. Baubillier, M. Becks, K-H. 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, L. Borisov, G. Botner, O. Bouquet, B. Bowcock, V. Boyko, I. Bracko, M. Brenner, R. Brodet, E. Bruckman, P. Brunet, M. Buschmann, P. Calvi, M. Camporesi, T. Canale, V. Carena, F. Castro, N. Cavallo, F. Chapkin, M. Charpentier, Ph. Checchia, P. Chierici, R. Chliapnikov, P. Chudoba, J. Chung, U. Cieslik, K. Collins, P. Contri, R. Cosme, G. Cossutti, F. Costa, J. Crennell, D. Cuevas, J. D'Hondt, J. Dalmau, J. da Silva, T. da Silva, W. della Ricca, G. de Angelis, A. de Boer, W. de Clercq, C. de Lotto, B. de Maria, N. de Min, A. de Paula, L. di Ciaccio, L. di Simone, A. Doroba, K. Drees, J. Dris, M. Eigen, G. Ekelof, T. Ellert, M. Elsing, M. Espirito Santo, C. 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, Ph. 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-O. Holt, J. Houlden, A. Hultqvist, K. Jackson, N. Jarlskog, G. Jarry, P. Jeans, D. Johansson, K. Johansson, D. Jonsson, P. Joram, C. Jungermann, L. Kapusta, F. Katsanevas, S. Katsoufis, E. Kernel, G. Kersevan, P. Kerzel, U. Kiiskinen, A. King, T. Kjaer, J. 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, H. Lopez, M. Loukas, D. Lutz, P. Lyons, L. MacNaughton, J. Malek, A. Maltezos, S. Mandl, F. Marco, J. Marco, R. Marechal, B. Margoni, M. Marin, J-C. Mariotti, C. Markou, A. Martinez-Rivero, C. Masik, J. Mastroyiannopoulos, N. Matorras, F. Matteuzzi, C. Mazzucato, F. Mazzucato, M. Mc Nulty, R. Meroni, C. Metreveli, Z. 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, P. Palka, H. Papadopoulou, D. 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, E. Polok, G. Pozdniakov, V. Pukhaeva, N. Pullia, A. Rames, J. Ramler, L. 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. Savoy-Navarro, A. Schwickerath, U. Segar, A. Sekulin, R. Seth, K. 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, T. Tabize, M. Taffard, C. Tegenfeldt, F. Timmermans, J. Tkatchev, L. Tobin, M. Todorovova, S. Tomaradze, A. Tome, B. Tonazzo, A. Tortosa, P. Travnicek, P. Treille, D. Tristram, G. Trochimczuk, M. Troncon, C. Turluer, M-L. Tyapkin, A. Tyapkin, P. Tzamarias, S. Uvarov, V. Valenti, G. van Dam, P. van Eldik, J. van Lysebetten, A. van Remortel, N. van Vulpen, I. Vegni, G. Veloso, F. Venus, W. Verdier, P. Verzi, V. Vilanova, D. Vitale, L. Vrba, V. Wahlen, H. Washbrook, J. Weiser, C. Wicke, D. Wickens, J. Wilkinson, G. Winter, M. Witek, M. Yushchenko, O. Zalewska, A. Zalewski, P. Zavrtanik, D. Zhuravlov, V. Zimin, I. Zintchenko, A. Zupan, M.

Subjects
Condensed Matter::Quantum Gases, High Energy Physics::Experiment
Abstract

Bose-Einstein correlations (BEC) between final state particles in the reaction e+e- → W+W- → q1q2̄q3q4̄ have been studied. Data corresponding to a total integrated luminosity of 550 pb -1, recorded by the DELPHI detector at centre-of-mass energies ranging from 189 to 209 GeV, were analysed. An indication for inter-W BEC between like-sign particles has been found at the level of 2.4 standard deviations of the combined statistical and systematic uncertainties. © Springer-Verlag / Società Italiana di Fisica 2005.

Published
2005

16. Photon events with missing energy in e+e- collisions at √s = 130 to 209 GeV

Author

Abdallah, J. Abreu, P. Adam, W. Adzic, P. Albrecht, T. Alderweireld, 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.-D. Arnoud, Y. Ask, S. Asman, B. Augustin, E. Augustinus, A. Baillon, P. Ballestrero, A. Bambade, P. Barbier, R. Bardin, D. Barker, J. Baroncelli, A. Battaglia, M. Baubillier, M. Becks, K.-H. 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, L. Borisov, G. Botner, O. Bouquet, B. Bowcock, V. Boyko, I. Bracko, M. Brenner, R. Brodet, E. Bruckman, P. Brunet, M. Bugge, L. Buschmann, P. Calvi, M. Camporesi, T. Canale, V. Carena, F. Castro, N. Cavallo, F. Chapkin, M. Charpentier, Ph. Checchia, P. Chierici, R. Chliapnikov, P. Chudoba, J. Chung, U. Cieslik, K. Collins, P. Contri, R. Cosme, G. Cossutti, F. Costa, J. Crennell, D. Cuevas, J. D'Hondt, J. Dalmau, J. Da Silva, T. Da Silva, W. Della Ricca, G. De Angelis, A. De Boer, W. De Clercq, C. De Lotto, B. De Maria, N. De Min, A. De Paula, L. Di Ciaccio, L. Di Simone, A. Doroba, K. Drees, J. Dris, M. Eigen, G. Ekelof, T. Ellert, M. Elsing, M. Espirito Santo, C. Falk, E. Fanourakis, G. Fassouliotis, D. Feindt, M. Fernandez, J. Ferrari, P. Ferrer, A. Ferro, F. Flagmeyer, U. Foeth, H. Fokitis, E. Fulda-Quenzer, F. Fuster, J. Gandelman, M. Garcia, C. Gavillet, Ph. 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.-O. Holt, J. Houlden, A. Hultqvist, K. Jackson, N. Jarlskog, G. Jarry, P. Jeans, D. Johansson, K. Johansson, D. Jonsson, P. Joram, C. Jungermann, L. Kapusta, F. Katsanevas, S. Katsoufis, E. Kernel, G. Kersevan, P. Kerzel, U. Kiiskinen, A. King, T. Kjaer, J. 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, H. Lopez, M. Loukas, D. Lutz, P. Lyons, L. MacNaughton, J. Malek, A. Maltezos, S. Mandl, F. Marco, J. Marco, R. Marechal, B. Margoni, M. Marin, J.-C. 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, P. Palka, H. Papadopoulou, D. 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, E. 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. Segar, A. Sekulin, R. Siebel, M. Sisakian, A. Smadja, G. Smirnova, O. Sokolov, A. Sopczak, A. Sosnowski, R. Spassov, T. Stanitzki, M. Stocchi, A. Strauss, J. Stugu, B. Szczekowski, M. Szeptycka, M. Szumlak, T. Tabarelli, T. Taffard, C. 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.-L. Tyapkin, A. Tyapkin, P. Tzamarias, S. Uvarov, V. Valenti, G. Van Dam, P. Van Eldik, J. Van Lysebetten, A. Van Remortel, N. Van Vulpen, I. Vegni, G. Veloso, F. Venus, W. Verdier, P. Verzi, V. Vilanova, D. Vitale, L. Vrba, V. Wahlen, H. Washbrook, J. Weiser, C. Wicke, D. Wickens, J. Wilkinson, G. Winter, M. Witek, M. Yushchenko, O. Zalewska, A. Zalewski, P. Zavrtanik, D. Zhuravlov, V. Zimin, I. Zintchenko, A. Zupan, M.

Subjects
High Energy Physics::Experiment
Abstract

The production of single- and multi-photon events has been studied in the reaction e+e-→ γ(γ) + invisible particles. The data collected with the DELPHI detector during the years 1999 and 2000 at centre-of-mass energies between 191 GeV and 209 GeV was combined with earlier data to search for phenomena beyond the Standard Model. The measured number of light neutrino families was consistent with three and the absence of an excess of events beyond that predicted by the Standard Model processes was used to set limits on new physics. Both model-independent searches and searches for new processes predicted by supersymmetric and extra-dimensional models have been made. Limits on new non-standard model interactions between neutrinos and electrons were also determined. © Springer-Verlag/Società Italiana di Fisica 2004.

Published
2005

17. Flavour independent searches for hadronically decaying neutral Higgs bosons

Author

Abdallah, J. Abreu, P. Adam, W. Adzic, P. Albrecht, T. Alderweireld, 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-D. Arnoud, Y. Ask, S. Asman, B. Augustin, E. Augustinus, A. Baillon, P. Ballestrero, A. Bambade, P. Barbier, R. Bardin, D. Barker, J. Baroncelli, A. Battaglia, M. Baubillier, M. Becks, K-H. 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, L. Borisov, G. Botner, O. Bouquet, B. Bowcock, V. Boyko, I. Bracko, M. Brenner, R. Brodet, E. Bruckman, P. Brunet, M. Bugge, L. Buschmann, P. Calvi, M. Camporesi, T. Canale, V. Carena, F. Castro, N. Cavallo, F. Chapkin, M. Charpentier, Ph. Checchia, P. Chierici, R. Chliapnikov, P. Chudoba, J. Chung, U. Cieslik, K. Collins, P. Contri, R. Cosme, G. Cossutti, F. Costa, J. Crennell, D. Cuevas, J. D'Hondt, J. Dalmau, J. da Silva, T. Da Silva, W. DellaRicca, G. De Angelis, A. De Boer, W. De Clercq, C. De Lotto, B. De Maria, N. De Min, A. de Paula, L. Di Ciaccio, L. Di Simone, A. Doroba, K. Drees, J. Dris, M. Eigen, G. Ekelof, T. Ellert, M. Elsing, M. Espirito Santo, C. 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, Ph. 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.-O. Holt, J. Houlden, A. Hultqvist, K. Jackson, N. Jarlskog, G. Jarry, P. Jeans, D. Johansson, K. Johansson, D. Jonsson, P. Joram, C. Jungermann, L. Kapusta, F. Katsanevas, S. Katsoufis, E. Kernel, G. Kersevan, P. Kerzel, U. Kiiskinen, A. King, T. Kjaer, J. 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, H. Lopez, M. Loukas, D. Lutz, P. Lyons, L. MacNaughton, J. Malek, A. Maltezos, S. Mandl, F. Marco, J. Marco, R. Marechal, B. Margoni, M. Marin, J-C. 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, P. Palka, H. Papadopoulou, D. 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, E. 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. Segar, A. Sekulin, R. Siebel, M. Sisakian, A. Smadja, G. Smirnova, O. Sokolov, A. Sopczak, A. Sosnowski, R. Spassov, T. Stanitzki, M. Stocchi, A. Strauss, J. Stugu, B. Szczekowski, M. Szeptycka, M. Szumlak, T. Tabarelli, T. Taffard, C. 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-L. Tyapkin, A. Tyapkin, P. Tzamarias, S. Uvarov, V. Valenti, G. van Dam, P. van Eldik, J. van Lysebetten, A. van Remortel, N. van Vulpen, I. Vegni, G. Veloso, F. Venus, W. Verdier, P. Verzi, V. Vilanova, D. Vitale, L. Vrba, V. Wahlen, H. Washbrook, J. Weiser, C. Wicke, D. Wickens, J. Wilkinson, G. Winter, M. Witek, M. Yushchenko, O. Zalewska, A. Zalewski, P. Zavrtanik, D. Zhuravlov, V. Zimin, I. Zintchenko, A. Zupan, M.

Subjects
High Energy Physics::Phenomenology, High Energy Physics::Experiment
Abstract

This paper describes flavour independent searches for hadronically decaying neutral Higgs bosons in the data collected by the DELPHI experiment at LEP, at centre-of-mass energies between 189 and 209 GeV. The collected data-set corresponds to an integrated luminosity of around 610 pb-1. The e+e- → hA and e+e- → hZ processes are considered, with direct Higgs boson decays into hadrons. No evidence for Higgs boson production is found, and cross-section limits are set as a function of the Higgs boson masses. No explicit assumptions are made on the underlying physics beyond the Standard Model, allowing interpretation of the data in a large class of models. © Springer-Verlag / Società Italiana di Fisica 2005.

Published
2005

18. A precise measurement of the tau lifetime

Author

Abdallah, J. Abreu, P. Adam, W. Adzic, P. Albrecht, T. Alderweireld, 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.-D. Arnoud, Y. Ask, S. Asman, B. Augustin, E. Augustinus, A. Baillon, P. Ballestrero, A. Bambade, P. Barbier, R. Bardin, D. Barker, J. Baroncelli, A. Battaglia, M. Baubillier, M. Becks, K.-H. 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, L. Borisov, G. Botner, O. Bouquet, B. Bowcock, V. Boyko, I. Bracko, M. Brenner, R. Brodet, E. Bruckman, P. Brunet, M. Bugge, L. Buschmann, P. Calvi, M. Camporesi, T. Canale, V. Carena, F. Castro, N. Cavallo, F. Chapkin, M. Charpentier, Ph. Checchia, P. Chierici, R. Chliapnikov, P. Chudoba, J. Chung, U. Cieslik, K. Collins, P. Contri, R. Cosme, G. Cossutti, F. Costa, J. Crennell, D. Cuevas, J. D'Hondt, J. Dalmau, J. da Silva, T. DaSilva, W. della Ricca, G. de Angelis, A. de Boer, W. de Clercq, C. de Lotto, B. de Maria, N. de Min, A. de Paula, L. di Ciaccio, L. di Simone, A. Doroba, K. Drees, J. Dris, M. Eigen, G. Ekelof, T. Ellert, M. Elsing, M. Espirito Santo, C. 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, Ph. 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.-O. Holt, J. Houlden, A. Hultqvist, K. Jackson, N. Jarlskog, G. Jarry, P. Jeans, D. Johansson, K. Johansson, D. Jonsson, P. Joram, C. Jungermann, L. Kapusta, F. Katsanevas, S. Katsoufis, E. Kernel, G. Kersevan, P. Kerzel, U. Kiiskinen, A. King, T. Kjaer, J. 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, H. Lopez, M. Loukas, D. Lutz, P. Lyons, L. MacNaughton, J. Malek, A. Maltezos, S. Mandl, F. Marco, J. Marco, R. Marechal, B. Margoni, M. Marin, J.-C. 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, P. Palka, H. Papadopoulou, D. 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, E. 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. Segar, A. Sekulin, R. Siebel, M. Sisakian, A. Smadja, G. Smirnova, O. Sokolov, A. Sopczak, A. Sosnowski, R. Spassov, T. Stanitzki, M. Stocchi, A. Strauss, J. Stugu, B. Szczekowski, M. Szeptycka, M. Szumlak, T. Tabarelli, T. Taffard, C. 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.-L. Tyapkin, A. Tyapkin, P. Tzamarias, S. Uvarov, V. Valenti, G. van Dam, P. van Eldik, J. van Lysebetten, A. van Remortel, N. van Vulpen, I. Vegni, G. Veloso, F. Venus, W. Verdier, P. Verzi, V. Vilanova, D. Vitale, L. Vrba, V. Wahlen, H. Washbrook, J. Weiser, C. Wicke, D. Wickens, J. Wilkinson, G. Winter, M. Witek, M. Yushchenko, O. Zalewska, A. Zalewski, P. Zavrtanik, D. Zhuravlov, V. Zimin, I. Zintchenko, A. Zupan, M.

Abstract

The tau lepton lifetime has been measured with the e+e - → τ+τ- events collected by the DELPHI detector at LEP in the years 1991-1995. Three different methods have been exploited, using both one-prong and three-prong τ decay channels. Two measurements have been made using events in which both taus decay to a single charged particle. Combining these measurements gave ττ(1 prong) = 291.8 ± 2.3stat ± 1.5sys fs. A third measurement using taus which decayed to three charged particles yielded τtau (3 prong) = 288.6± 2.4stat ± 1.3sys fs. These were combined with previous DELPHI results to measure the tau lifetime, using the full LEP1 data sample, to be τ τ = 290.9 ± 1.4stat ± 1.0sys fs. © Springer-Verlag / Società Italiana di Fisica 2004.

Published
2004

19. The measurement of alpha(8) from event shapes with the DELPHI detector at the highest LEP energies

Author

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

Subjects
High Energy Physics::Experiment, Nuclear Experiment
Abstract

Hadronic event shape distributions are determined from data in e(+)e(-) collisions between 183 and 207 GeV. From these the strong coupling alpha(s) is extracted in O(alpha(s)(2)), NLLA and matched O(alpha(s)(2))+ NLLA theory. Hadronisation corrections evaluated with fragmentation model generators as well as an analytical power ansatz are applied. Comparing these measurements to those obtained at and around M-Z allows a combined measurement of alpha(s) from all DELPHI data and a test of the energy dependence of the strong coupling.

Published
2004

20. Search for SUSY in the AMSB scenario with the DELPHI detector

Author

Abdallah, J. Abreu, P. Adam, W. Adzic, P. Albrecht, T. Alderweireld, 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.-D. Arnoud, Y. Ask, S. Asman, B. Augustin, E. Augustinus, A. Baillon, P. Ballestrero, A. Bambade, P. Barbier, R. Bardin, D. Barker, G. Baroncelli, A. Battaglia, M. Baubillier, M. Becks, K.-H. 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, L. Borisov, G. Botner, O. Bouquet, B. Bowcock, V. Boyko, I. Bracko, M. Brenner, R. Brodet, E. Bruckman, P. Brunet, M. Bugge, L. Buschmann, P. Calvi, M. Camporesi, T. Canale, V. Carena, F. Castro, N. Cavallo, F. Chapkin, M. Charpentier, Ph. Checchia, P. Chierici, R. Chliapnikov, P. Chudoba, J. Chung, U. Cieslik, K. Collins, P. Contri, R. Cosme, G. Cossutti, F. Costa, J. Crennell, D. Cuevas, J. D'Hondt, J. Dalmau, J. da Silva, T. da Silva, W. Della Ricca, G. de Angelis, A. de Boer, W. de Clercq, C. de Lotto, B. de Maria, N. de Min, A. de Paula, L. di Ciaccio, L. di Simone, A. Doroba, K. Drees, J. Dris, M. Eigen, G. Ekelof, T. Ellert, M. Elsing, M. Espirito Santo, C. 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, Ph. 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.-O. Holt, J. Houlden, A. Hultqvist, K. Jackson, N. Jarlskog, G. Jarry, P. Jeans, D. Johansson, K. Johansson, D. Jonsson, P. Joram, C. Jungermann, L. Kapusta, F. Katsanevas, S. Katsoufis, E. Kernel, G. Kersevan, P. Kerzel, U. Kiiskinen, A. King, T. Kjaer, J. 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, H. Lopez, M. Loukas, D. Lutz, P. Lyons, L. MacNaughton, J. Malek, A. Maltezos, S. Mandl, F. Marco, J. Marco, R. Marechal, B. Margoni, M. Marin, J.-C. 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, P. Palka, H. Papadopoulou, D. 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, E. Polok, G. Poropat, P. Pozdniakov, V. Pukhaeva, N. Pullia, A. Rames, J. Ramler, L. 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. Savoy-Navarro, A. Schwickerath, U. Segar, A. Sekulin, R. Siebel, M. Sisakian, A. Smadja, G. Smirnova, O. Sokolov, A. Sopczak, A. Sosnowski, R. Spassov, T. Stanitzki, M. Stocchi, A. Strauss, J. Stugu, B. Szczekowski, M. Szeptycka, M. Szumlak, T. Tabarelli, T. Taffard, C. 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.-L. Tyapkin, A. Tyapkin, P. Tzamarias, S. Uvarov, V. Valenti, G. van Dam, P. van Eldik, J. van Lysebetten, A. van Remortel, N. van Vulpen, I. Vegni, G. Veloso, F. Venus, W. Verdier, P. Verzi, V. Vilanova, D. Vitale, L. Vrba, V. Wahlen, H. Washbrook, J. Weiser, C. Wicke, D. Wickens, J. Wilkinson, G. Winter, M. Witek, M. Yushchenko, O. Zalewska, A. Zalewski, P. Zavrtanik, D. Zhuravlov, V. Zimin, I. Zintchenko, A. Zupan, M.

Subjects
High Energy Physics::Phenomenology, High Energy Physics::Experiment
Abstract

The DELPHI experiment at the LEP e+e- collider collected almost 700 pb-1 at centre-of-mass energies above the Z 0° mass pole and up to 208 GeV. Those data were used to search for SUSY in the Anomaly Mediated SUSY Breaking (AMSB) scenario with a flavour independent common sfermion mass parameter. The searches covered several possible signatures experimentally accessible at LEP, with either the neutralino, the sneutrino or the stau being the Lightest Supersymmetric Particle (LSP). They included: the search for nearly mass-degenerate chargino and neutralino, which is a typical feature of AMSB; the search for Standard-Model-like or invisibly decaying Higgs boson; the search for stable staus; the search for cascade decays of SUSY particles resulting in the LSP and a low multiplicity final state containing neutrinos. No evidence of a signal was found, and thus constraints were set in the space of the parameters of the model.

Published
2004

21. Measurement of |Vcb| using the semileptonic decay B d 0 → D*+ℓ-ν ℓ

Author

Abdallah, J. Abreu, P. Adam, W. Adzic, P. Albrecht, T. Alderweireld, 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.-D. Arnoud, Y. Ask, S. Asman, B. Augustin, E. Augustinus, A. Baillon, P. Ballestrero, A. Bambade, P. Barbier, R. Bardin, D. Barker, G. Baroncelli, A. Battaglia, M. Baubillier, M. Becks, K.-H. 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, L. Borisov, G. Botner, O. Bouquet, B. Bowcock, V. Boyko, I. Bracko, M. Brenner, R. Brodet, E. Bruckman, P. Brunet, M. Bugge, L. Buschmann, P. Calvi, M. Camporesi, T. Canale, V. Carena, F. Castro, N. Cavallo, F. Chapkin, M. Charpentier, Ph. Checchia, P. Chierici, R. Chliapnikov, P. Chudoba, J. Chung, U. Cieslik, K. Collins, P. Contri, R. Cosme, G. Cossutti, F. Costa, J. Crennell, D. Cuevas, J. D'Hondt, J. Dalmau, J. da Silva, T. Da Silva, W. Della Ricca, G. de Angelis, A. de Boer, W. de Clercq, C. de Lotto, B. de Maria, N. de Min, A. de Paula, L. di Ciaccio, L. di Simone, A. Doroba, K. Drees, J. Dris, M. Eigen, G. Ekelof, T. Ellert, M. Elsing, M. Espirito Santo, C. 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, Ph. 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.-O. Holt, J. Houlden, A. Hultqvist, K. Jackson, N. Jarlskog, G. Jarry, P. Jeans, D. Johansson, K. Johansson, D. Jonsson, P. Joram, C. Jungermann, L. Kapusta, F. Katsanevas, S. Katsoufis, E. Kernel, G. Kersevan, P. Kerzel, U. Kiiskinen, A. King, T. Kjaer, J. 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, H. Lopez, M. Loukas, D. Lutz, P. Lyons, L. MacNaughton, J. Malek, A. Maltezos, S. Mandl, F. Marco, J. Marco, R. Marechal, B. Margoni, M. Marin, J.-C. 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, P. Palka, H. Papadopoulou, D. 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, E. Polok, G. Poropat, P. Pozdniakov, V. Pukhaeva, N. Pullia, A. Rames, J. Ramler, L. 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. Savoy-Navarro, A. Schwickerath, U. Segar, A. Sekulin, R. Siebel, M. Sisakian, A. Smadja, G. Smirnova, O. Sokolov, A. Sopczak, A. Sosnowski, R. Spassov, T. Stanitzki, M. Stocchi, A. Strauss, J. Stugu, B. Szczekowski, M. Szeptycka, M. Szumlak, T. Tabarelli, T. Taffard, C. 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.-L. Tyapkin, A. Tyapkin, P. Tzamarias, S. Uvarov, V. Valenti, G. van Dam, P. van Eldik, J. van Lysebetten, A. van Remortel, N. van Vulpen, I. Vegni, G. Veloso, F. Venus, W. Verdier, P. Verzi, V. Vilanova, D. Vitale, L. Vrba, V. Wahlen, H. Washbrook, J. Weiser, C. Wicke, D. Wickens, J. Wilkinson, G. Winter, M. Witek, M. Yushchenko, O. Zalewska, A. Zalewski, P. Zavrtanik, D. Zhuravlov, V. Zimin, I. Zintchenko, A. Zupan, M.

Abstract

Data from Z decays in DELPHI have been searched for Bd 0 → D*+ℓ-νℓ with the D*+ decaying to D0π+ and D0 → K-π+, K-π +π+π- or K-π +(π0). These events are used to measure the CKM matrix element |Vcb| and the form factor slope, ρA1 2: ℱD* (1) |Vcb| = 0.0392 ± 0.0018 ± 0.0023; ρA1 2 = 1.32 ± 0.15 ± 0.33 corresponding to a branching fraction: BR(Bd 0 → D*+ℓ-νℓ) = (5.90 ± 0.22 ± 0.50)%. Combining these and previous DELPHI measurements gives: ℱD* (1) |Vcb| = 0.0377 ± 0.0011 ± 0.0019, ρA1 2 = 1.39 ± 0.10 ± 0.33 and BR(Bd 0 → D* +ℓ-νℓ) = (5.39 ± 0.11 ± 0.34)% Using ℱD* (1) = 0.91 ± 0.04, yields: |Vcbl = 0.0414 ± 0.0012(stat.) ± 0.0021(syst.) ± 0.0018(theory). The b-quark semileptonic branching fraction into a D*+ emitted from higher mass charmed excited states has also been measured to be: BR(b → D*+Xℓ-ν ℓ) = (0.67 ± 0.08 ± 0.10)%.

Published
2004

22. Study of tau-pair production in photon-photon collisions at LEP and limits on the anomalous electromagnetic moments of the tau lepton

Author

Abdallah, J. Abreu, P. Adam, W. Adzic, P. Albrecht, T. Alderweireld, 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.-D. Arnoud, Y. Ask, S. Asman, B. Augustin, E. Augustinus, A. Baillon, P. Ballestrero, A. Bambade, P. Barbier, R. Bardin, D. Barker, G. Baroncelli, A. Battaglia, M. Baubillier, M. Becks, K.-H. 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, L. Borisov, G. Botner, O. Bouquet, B. Bowcock, V. Boyko, I. Bracko, M. Brenner, R. Brodet, E. Bruckman, P. Brunet, M. Bugge, L. Buschmann, P. Calvi, M. Camporesi, T. Canale, V. Carena, F. Castro, N. Cavallo, F. Chapkin, M. Charpentier, Ph. Checchia, P. Chierici, R. Chliapnikov, P. Chudoba, J. Chung, U. Cieslik, K. Collins, P. Contri, R. Cosme, G. Cossutti, F. Costa, J. Crawley, B. Crennell, D. Cuevas, J. D'Hondt, J. Dalmau, J. daSilva, T. DaSilva, W. della Ricca, G. DeAngelis, A. DeBoer, W. DeClercq, C. de Lotto, B. de Maria, N. DeMin, A. de Paula, L. DiCiaccio, L. DiSimone, A. Doroba, K. Drees, J. Dris, M. Eigen, G. Ekelof, T. Ellert, M. Elsing, M. Espirito Santo, C. 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, Ph. 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.-O. Holt, J. Houlden, A. Hultqvist, K. Jackson, N. Jarlskog, G. Jarry, P. Jeans, D. Johansson, K. Johansson, D. Jonsson, P. Joram, C. Jungermann, L. Kapusta, F. Katsanevas, S. Katsoufis, E. Kernel, G. Kersevan, P. Kerzel, U. Kiiskinen, A. King, T. Kjaer, J. 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, H. Lopez, M. Loukas, D. Lutz, P. Lyons, L. MacNaughton, J. Malek, A. Maltezos, S. Mandl, F. Marco, J. Marco, R. Marechal, B. Margoni, M. Marin, J.-C. Mariotti, C. Markou, A. Martinez-Rivero, C. Masik, J. Mastroyiannopoulos, N. Matorras, F. Matteuzzi, C. Mazzucato, F. Mazzucato, M. Mc Nulty, R. Meroni, C. Meyer, T. 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, P. Palka, H. Papadopoulou, D. 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, E. Polok, G. Poropat, P. Pozdniakov, V. Pukhaeva, N. Pullia, A. Rames, J. Ramler, L. Read, A. Rebecchi, P. Rehn, J. Reid, D. Reinhardt, R. Renton, P. Richard, F. Ridky, J. Rivero, M. Rodriguez, D. Romero, A. Ronchese, P. Rosenberg, E. Roudeau, P. Rovelli, T. Ruhlmann-Kleider, V. Ryabtchikov, D. Sadovsky, A. Salmi, L. Salt, J. Savoy-Navarro, A. Schwickerath, U. Segar, A. Sekulin, R. Siebel, M. Sisakian, A. Smadja, G. Smirnova, O. Sokolov, A. Sopczak, A. Sosnowski, R. Spassov, T. Stanitzki, M. Stocchi, A. Strauss, J. Stugu, B. Szczekowski, M. Szeptycka, M. Szumlak, T. Tabarelli, T. Taffard, C. 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.-L. Tyapkin, A. Tyapkin, P. Tzamarias, S. Uvarov, V. Valenti, G. van Dam, P. van Eldik, J. van Lysebetten, A. van Remortel, N. van Vulpen, I. Vegni, G. Veloso, F. Venus, W. Verdier, P. Verzi, V. Vilanova, D. Vitale, L. Vrba, V. Wahlen, H. Washbrook, J. Weiser, C. Wicke, D. Wickens, J. Wilkinson, G. Winter, M. Witek, M. Yushchenko, O. Zalewska, A. Zalewski, P. Zavrtanik, D. Zhuravlov, V. Zimin, I. Zintchenko, A. Zupan, M.

Subjects
High Energy Physics::Experiment, Physics::History of Physics
Abstract

Tau-pair production in the process e+e- → e +e T+T- was studied using data collected by the DELPHI experiment at LEP2 during the years 1997 - 2000. The corresponding integrated luminosity is 650 pb-1. The values of the cross-section obtained are found to be in agreement with QED predictions. Limits on the anomalous magnetic and electric dipole moments of the tau lepton are deduced. © Springer-Verlag / Società Italiana di Fisica 2004.

Published
2004

23. A precise measurement of the B+, B0 and mean b-hadron lifetime with the DELPHI detector at LEP I

Author

Abdallah, J. Abreu, P. Adam, W. Adzic, P. Albrecht, T. Alderweireld, 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.-D. Arnoud, Y. Ask, S. Asman, B. Augustin, E. Augustinus, A. Baillon, P. Ballestrero, A. Bambade, P. Barbier, R. Bardin, D. Barker, G.J. Baroncelli, A. Battaglia, M. Baubillier, M. Becks, K.-H. 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, L. Borisov, G. Botner, O. Bouquet, B. Bowcock, V. Boyko, I. Bracko, M. Brenner, R. Brodet, E. Bruckman, P. Brunet, M. Bugge, L. Buschmann, P. Calvi, M. Camporesi, T. Canale, V. Carena, F. Castro, N. Cavallo, F. Chapkin, M. Charpentier, Ph. Checchia, P. Chierici, R. Chliapnikov, P. Chudoba, J. Chung, U. Cieslik, K. Collins, P. Contri, R. Cosme, G. Cossutti, F. Costa, J. Crawley, B. Crennell, D. Cuevas, J. D'Hondt, J. Dalmau, J. da Silva, T. da Silva, W. della Ricca, G. de Angelis, A. de Boer, W. de Clercq, C. de Lotto, B. de Maria, N. de Min, A. de Paula, L. di Ciaccio, L. di Simone, A. Doroba, K. Drees, J. Dris, M. Eigen, G. Ekelof, T. Ellert, M. Elsing, M. Espirito Santo, C. 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, Ph. 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. Hansen, J. Haug, S. Hauler, F. Hedberg, V. Hennecke, M. Herr, H. Hoffman, J. Holmgren, S.-O. Holt, J. Houlden, A. Hultqvist, K. Jackson, N. Jarlskog, G. Jarry, P. Jeans, D. Johansson, K. Johansson, D. Jonsson, P. Joram, C. Jungermann, L. Kapusta, F. Katsanevas, S. Katsoufis, E. Kernel, G. Kersevan, P. Kiiskinen, A. King, T. Kjaer, J. 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, H. Lopez, M. Loukas, D. Lutz, P. Lyons, L. MacNaughton, J. Malek, A. Maltezos, S. Mandl, F. Marco, J. Marco, R. Marechal, B. Margoni, M. Marin, J.-C. Mariotti, C. Markou, A. Martinez-Rivero, C. Masik, J. Mastroyiannopoulos, N. Matorras, F. Matteuzzi, C. Mazzucato, F. Mazzucato, M. Mc Nulty, R. Meroni, C. Meyer, T. 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, P. Palka, H. Papadopoulou, D. 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, E. Polok, G. Poropat, P. Pozdniakov, V. Pukhaeva, N. Pullia, A. Rames, J. Ramler, L. Read, A. Rebecchi, P. Rehn, J. Reid, D. Reinhardt, R. Renton, P. Richard, F. Ridky, J. Rivero, M. Rodriguez, D. Romero, A. Ronchese, P. Rosenberg, E. Roudeau, P. Rovelli, T. Ruhlmann-Kleider, V. Ryabtchikov, D. Sadovsky, A. Salmi, L. Salt, J. Savoy-Navarro, A. Schwickerath, U. Segar, A. Sekulin, R. Siebel, M. Sisakian, A. Smadja, G. Smirnova, O. Sokolov, A. Sopczak, A. Sosnowski, R. Spassov, T. Stanitzki, M. Stocchi, A. Strauss, J. Stugu, B. Szczekowski, M. Szeptycka, M. Szumlak, T. Tabarelli, T. Taffard, C. 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.-L. Tyapkin, A. Tyapkin, P. Tzamarias, S. Uvarov, V. Valenti, G. Van Dam, P. Van Eldik, J. Van Lysebetten, A. van Remortel, N. Van Vulpen, I. Vegni, G. Veloso, F. Venus, W. Verbeure, F. Verdier, P. Verzi, V. Vilanova, D. Vitale, L. Vrba, V. Wahlen, H. Washbrook, J. Weiser, C. Wicke, D. Wickens, J. Wilkinson, G. Winter, M. Witek, M. Yushchenko, O. Zalewska, A. Zalewski, P. Zavrtanik, D. Zhuravlov, V. Zimin, I. Zintchenko, A. Zupan, M.

Abstract

Final results from the DELPHI Collaboration on the lifetime of B + and B0 mesons and the mean b-hadron lifetime, are presented using the data collected at the Z0 peak in 1994 and 1995. Elaborate, inclusive, secondary vertexing methods have been employed to ensure a b-hadron reconstruction with good efficiency. To separate samples of B + and B0 mesons, high performance neural network techniques are used that achieve very high purity signals. The results obtained are: τB+ = 1.624±0.014 (stat)±0.018 (syst)ps τB0 = 1.531±0.021 (stat)±0.031 (syst) ps τ B+/τB0 = 1.060±0.021 (stat)±0.024 (syst) and for the average b-hadron lifetime: τb = 1.570±0.005 (stat)±0.008 (syst) ps.

Published
2004

24. Measurement of the W-pair production cross-section and W branching ratios in e+e- collisions at √s = 161-209 GeV

Author

Abdallah, J. Abreu, P. Adam, W. Adzic, P. Albrecht, T. Alderweireld, 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.-D. Arnoud, Y. Ask, S. Asman, B. Augustin, E. Augustinus, A. Baillon, P. Ballestrero, A. Bambade, P. Barbier, R. Bardin, D. Barker, G. Baroncelli, A. Battaglia, M. Baubillier, M. Becks, K.-H. 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, L. Borisov, G. Botner, O. Bouquet, B. Bowcock, V. Boyko, I. Bracko, M. Brenner, R. Brodet, E. Bruckman, P. Brunet, M. Bugge, L. Buschmann, P. Calvi, M. Camporesi, T. Canale, V. Carena, F. Castro, N. Cavallo, F. Chapkin, M. Charpentier, Ph. Checchia, P. Chierici, R. Chliapnikov, P. Chudoba, J. Chung, U. Cieslik, K. Collins, P. Contri, R. Cosme, G. Cossutti, F. Costa, J. Crennell, D. Cuevas, J. D'Hondt, J. Dalmau, J. da Silva, T. DaSilva, W. della Ricca, G. de Angelis, A. de Boer, W. de Clercq, C. de Lotto, B. de Maria, N. de Min, A. de Paula, L. di Ciaccio, L. di Simone, A. Doroba, K. Drees, J. Dris, M. Eigen, G. Ekelof, T. Ellert, M. Elsing, M. Espirito Santo, C. 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, Ph. 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.-O. Holt, J. Houlden, A. Hultqvist, K. Jackson, N. Jarlskog, G. Jarry, P. Jeans, D. Johansson, K. Johansson, D. Jonsson, P. Joram, C. Jungermann, L. Kapusta, F. Katsanevas, S. Katsoufis, E. Kernel, G. Kersevan, P. Kerzel, U. Kiiskinen, A. King, T. Kjaer, J. 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, H. Lopez, M. Loukas, D. Lutz, P. Lyons, L. MacNaughton, J. Malek, A. Maltezos, S. Mandl, F. Marco, J. Marco, R. Marechal, B. Margoni, M. Marin, J.-C. 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, P. Palka, H. Papadopoulou, D. 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, E. Polok, G. Poropat, P. Pozdniakov, V. Pukhaeva, N. Pullia, A. Rames, J. Ramler, L. 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. Savoy-Navarro, A. Schwickerath, U. Segar, A. Sekulin, R. Siebel, M. Sisakian, A. Smadja, G. Smirnova, O. Sokolov, A. Sopczak, A. Sosnowski, R. Spassov, T. Stanitzki, M. Stocchi, A. Strauss, J. Stugu, B. Szczekowski, M. Szeptycka, M. Szumlak, T. Tabarelli, T. Taffard, C. 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.-L. Tyapkin, A. Tyapkin, P. Tzamarias, S. Uvarov, V. Valenti, G. van Dam, P. van Eldik, J. van Lysebetten, A. van Remortel, N. van Vulpen, I. Vegni, G. Veloso, F. Venus, W. Verdier, P. Verzi, V. Vilanova, D. Vitale, L. Vrba, V. Wahlen, H. Washbrook, J. Weiser, C. Wicke, D. Wickens, J. Wilkinson, G. Winter, M. Witek, M. Yushchenko, O. Zalewska, A. Zalewski, P. Zavrtanik, D. Zhuravlov, V. Zimin, I. Zintchenko, A. Zupan, M.

Subjects
High Energy Physics::Experiment
Abstract

These final results on e+e- → W +W- production cross-section measurements at LEP2 use data collected by the DELPHI detector at centre-of-mass energies up to 209 GeV. Measurements of total cross-sections, W angular differential distributions and decay branching fractions, and the value of the CKM element |Vcs| are compared to the expectations of the Standard Model. These results supersede all values previously published by DELPHI.

Published
2004

25. Determination of the e+e- → γγ (γ) cross-section at LEP 2

Author

Abdallah, J. Abreu, P. Adam, W. Adzic, P. Albrecht, T. Alderweireld, 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.-D. Arnoud, Y. Ask, S. Asman, B. Augustin, E. Augustinus, A. Baillon, P. Ballestrero, A. Bambade, P. Barbier, R. Bardin, D. Barker, G. Baroncelli, A. Battaglia, M. Baubillier, M. Becks, K.-H. 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, L. Borisov, G. Botner, O. Bouquet, B. Bowcock, V. Boyko, I. Bracko, M. Brenner, R. Brodet, E. Bruckman, P. Brunet, M. Bugge, L. Buschmann, P. Calvi, M. Camporesi, T. Canale, V. Carena, F. Castro, N. Cavallo, F. Chapkin, M. Charpentier, Ph. Checchia, P. Chierici, R. Chliapnikov, P. Chudoba, J. Chung, U. Cieslik, K. Collins, P. Contri, R. Cosme, G. Cossutti, F. Costa, J. Crennell, D. Cuevas, J. D'Hondt, J. Dalmau, J. Da Silva, T. Da Silva, W. Della Ricca, G. De Angelis, A. De Boer, W. De Clercq, C. De Lotto, B. De Maria, N. De Min, A. De Paula, L. Di Ciaccio, L. Di Simone, A. Doroba, K. Drees, J. Dris, M. Eigen, G. Ekelof, T. Ellert, M. Elsing, M. Espirito Santo, C. 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, Ph. 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.-O. Holt, J. Houlden, A. Hultqvist, K. Jackson, N. Jarlskog, G. Jarry, P. Jeans, D. Johansson, K. Johansson, D. Jonsson, P. Joram, C. Jungermann, L. Kapusta, F. Katsanevas, S. Katsoufis, E. Kernel, G. Kersevan, P. Kerzel, U. Kiiskinen, A. King, T. Kjaer, J. 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, H. Lopez, M. Loukas, D. Lutz, P. Lyons, L. MacNaughton, J. Malek, A. Maltezos, S. Mandl, F. Marco, J. Marco, R. Marechal, B. Margoni, M. Marin, J.-C. 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, P. Palka, H. Papadopoulou, D. 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, E. Polok, G. Poropat, P. Pozdniakov, V. Pukhaeva, N. Pullia, A. Rames, J. Ramler, L. 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. Savoy-Navarro, A. Schwickerath, U. Segar, A. Sekulin, R. Siebel, M. Sisakian, A. Smadja, G. Smirnova, O. Sokolov, A. Sopczak, A. Sosnowski, R. Spassov, T. Stanitzki, M. Stocchi, A. Strauss, J. Stugu, B. Szczekowski, M. Szeptycka, M. Szumlak, T. Tabarelli, T. Taffard, C. 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.-L. Tyapkin, A. Tyapkin, P. Tzamarias, S. Uvarov, V. Valenti, G. Van Dam, P. Van Eldik, J. Van Lysebetten, A. Van Remortel, N. VanVulpen, I. Vegni, G. Veloso, F. Venus, W. Verdier, P. Verzi, V. Vilanova, D. Vitale, L. Vrba, V. Wahlen, H. Washbrook, J. Weiser, C. Wicke, D. Wickens, J. Wilkinson, G. Winter, M. Witek, M. Yushchenko, O. Zalewska, A. Zalewski, P. Zavrtanik, D. Zhuravlov, V. Zimin, I. Zintchenko, A. Zupan, M.

Subjects
High Energy Physics::Experiment
Abstract

A test of the benchmark QED process e+e- → γγ(γ) is reported, using the data collected with the DELPHI detector at LEP 2. The data analysed were recorded at centre-of-mass energies ranging from 161 GeV to 208 GeV and correspond to a total integrated luminosity of 656.4 pb-1. The Born cross-section for the process e +e- → γγ(γ) was determined, confirming the validity of QED at the highest energies ever attained in electron-positron collisions. Lower limits on the parameters of a number of possible deviations from QED, predicted within theoretical frameworks expressing physics beyond the Standard Model, were derived. © Springer-Verlag/ Società Italiana di Fisica 2004.

Published
2004

26. Erratum: Search for supersymmetric particles assuming R-parity non-conservation in e+e- collisions at √s = 192 to 208 GeV (The European Physical Journal C (2004) 36 (1-23) DOI: 10.1140/epjc/s2004-01881-6)

Author

Abdallah, J. Abreu, P. Adam, W. Adzic, P. Albrecht, T. Alderweireld, 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.-D. Arnoud, Y. Ask, S. Asman, B. Augustin, E. Augustinus, A. Baillon, P. Ballestrero, A. Bambade, P. Barbier, R. Bardin, D. Barker, J. Baroncelli, A. Battaglia, M. Baubillier, M. Becks, K.-H. 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, L. Borisov, G. Botner, O. Bouquet, B. Bowcock, V. Boyko, I. Bracko, M. Brenner, R. Brodet, E. Bruckman, P. Brunet, M. Bugge, L. Buschmann, P. Calvi, M. Camporesi, T. Canale, V. Carena, F. Castro, N. Cavallo, F. Chapkin, M. Charpentier, Ph. Checchia, P. Chierici, R. Chliapnikov, P. Chudoba, J. Chung, U. Cieslik, K. Collins, P. Contri, R. Cosme, G. Cossutti, F. Costa, J. Crennell, D. Cuevas, J. D'Hondt, J. Dalmau, J. da Silva, T. da Silva, W. della Ricca, G. de Angelis, A. de Boer, W. de Clercq, C. de Lotto, B. de Maria, N. de Min, A. de Paula, L. di Ciaccio, L. di Simone, A. Doroba, K. Drees, J. Dris, M. Eigen, G. Ekelof, T. Ellert, M. Elsing, M. Espirito Santo, C. 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, Ph. 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.-O. Holt, J. Houlden, A. Hultqvist, K. Jackson, N. Jarlskog, G. Jarry, P. Jeans, D. Johansson, K. Johansson, D. Jonsson, P. Joram, C. Jungermann, L. Kapusta, F. Katsanevas, S. Katsoufis, E. Kernel, G. Kersevan, P. Kerzel, U. Kiiskinen, A. King, T. Kjaer, J. 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, H. Lopez, M. Loukas, D. Lutz, P. Lyons, L. MacNaughton, J. Malek, A. Maltezos, S. Mandl, F. Marco, J. Marco, R. Marechal, B. Margoni, M. Marin, J.-C. 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, P. Palka, H. Papadopoulou, D. 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, E. 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. Segar, A. Sekulin, R. Siebel, M. Sisakian, A. Smadja, G. Smirnova, O. Sokolov, A. Sopczak, A. Sosnowski, R. Spassov, T. Stanitzki, M. Stocchi, A. Strauss, J. Stugu, B. Szczekowski, M. Szeptycka, M. Szumlak, T. Tabarelli, T. Taffard, C. 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.-L. Tyapkin, A. Tyapkin, P. Tzamarias, S. Uvarov, V. Valenti, G. van Dam, P. van Eldik, J. van Lysebetten, A. van Remortel, N. van Vulpen, I. Vegni, G. Veloso, F. Venus, W. Verdier, P. Verzi, V. Vilanova, D. Vitale, L. Vrba, V. Wahlen, H. Washbrook, J. Weiser, C. Wicke, D. Wickens, J. Wilkinson, G. Winter, M. Witek, M. Yushchenko, O. Zalewska, A. Zalewski, P. Zavrtanik, D. Zhuravlov, V. Zimin, I. Zintchenko, A. Zupan, M.

Published
2004

27. Measurement of the forward-backward asymmetries of e+e - → Z → bb̄ and e+e- → Z → cc̄ using prompt leptons

Author

Abdallah, J. Abreu, P. Adam, W. Adzic, P. Albrecht, T. Alderweireld, 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.-D. Arnoud, Y. Ask, S. Asman, B. Augustin, E. Augustinus, A. Baillon, P. Ballestrero, A. Bambade, P. Barbier, R. Bardin, D. Barker, G. Baroncelli, A. Battaglia, M. Baubillier, M. Becks, K.-H. 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, L. Borisov, G. Botner, O. Bouquet, B. Bowcock, V. Boyko, I. Bracko, M. Brenner, R. Brodet, E. Bruckman, P. Brunet, M. Bugge, L. Buschmann, P. Calvi, M. Camporesi, T. Canale, V. Carena, F. Castro, N. Cavallo, F. Chapkin, M. Charpentier, Ph. Checchia, P. Chierici, R. Chliapnikov, P. Chudoba, J. Chung, U. Cieslik, K. Collins, P. Contri, R. Cosme, G. Cossutti, F. Costa, J. Crennell, D. Cuevas, J. D'Hondt, J. Dalmau, J. da Silva, T. da Silva, W. della Ricca, G. de Angelis, A. de Boer, W. de Clercq, C. de Lotto, B. de Maria, N. de Min, A. de Paula, L. di Ciaccio, L. di Simone, A. Doroba, K. Drees, J. Dris, M. Eigen, G. Ekelof, T. Ellert, M. Elsing, M. Espirito Santo, C. 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, Ph. 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.-O. Holt, J. Houlden, A. Hultqvist, K. Jackson, N. Jarlskog, G. Jarry, P. Jeans, D. Johansson, K. Johansson, D. Jonsson, P. Joram, C. Jungermann, L. Kapusta, F. Katsanevas, S. Katsoufis, E. Kernel, G. Kersevan, P. Kerzel, U. Kiiskinen, A. King, T. Kjaer, J. 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, H. Lopez, M. Loukas, D. Lutz, P. Lyons, L. MacNaughton, J. Malek, A. Maltezos, S. Mandl, F. Marco, J. Marco, R. Marechal, B. Margoni, M. Marin, J.-C. 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, P. Palka, H. Papadopoulou, D. 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, E. Polok, G. Poropat, P. Pozdniakov, V. Pukhaeva, N. Pullia, A. Rames, J. Ramler, L. 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. Savoy-Navarro, A. Schwickerath, U. Segar, A. Sekulin, R. Siebel, M. Sisakian, A. Smadja, G. Smirnova, O. Sokolov, A. Sopczak, A. Sosnowski, R. Spassov, T. Stanitzki, M. Stocchi, A. Strauss, J. Stugu, B. Szczekowski, M. Szeptycka, M. Szumlak, T. Tabarelli, T. Taffard, C. 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.-L. Tyapkin, A. Tyapkin, P. Tzamarias, S. Uvarov, V. Valenti, G. van Dam, P. van Eldik, J. van Lysebetten, A. van Remortel, N. van Vulpen, I. Vegni, G. Veloso, F. Venus, W. Verdier, P. Verzi, V. Vilanova, D. Vitale, L. Vrba, V. Wahlen, H. Washbrook, J. Weiser, C. Wicke, D. Wickens, J. Wilkinson, G. Winter, M. Witek, M. Yushchenko, O. Zalewska, A. Zalewski, P. Zavrtanik, D. Zhuravlov, V. Zimin, I. Zintchenko, A. Zupan, M.

Abstract

The forward-backward asymmetries of the processes e+e - → Z → bb̄ and e+e- → Z → cc̄ were measured from a sample of hadronic Z decays collected by the DELPHI experiment between 1993 and 1995. Enriched samples of bb̄ and cc̄ events were obtained using lifetime information. The tagging of & and c quarks in these samples was based on the semileptonic decay channels b/c → X + μ and b/c → X + e combined with charge flow information from the hemisphere opposite to the lepton. Combining the AFB bb̄ and AFB cc̄ measurements presented in this paper with published results based on 1991 and 1992 DELPHI data samples, the following pole asymmetries were obtained: AFB 0,b = 0.1021 ± 0.0052 (stat) ± 0.0024 (syst) A FB 0,c = 0.0728 ± 0.0086 (stat) ± 0.0063 (syst) The effective value of the weak mixing angle derived from these measurements is sin2 θW,eff lept = 0.23170 ± 0.00097.

Published
2004

28. Search for charged Higgs bosons at LEP in general two Higgs doublet models

Author

Abdallah, J. Abreu, P. Adam, W. Adzic, P. Albrecht, T. Alderweireld, 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.-D. Arnoud, Y. Ask, S. Asman, B. Augustin, E. Augustinus, A. Baillon, P. Ballestrero, A. Bambade, P. Barbier, R. Bardin, D. Barker, G. Baroncelli, A. Battaglia, M. Baubillier, M. Becks, K.-H. 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, L. Borisov, G. Botner, O. Bouquet, B. Bowcock, V. Boyko, I. Bracko, M. Brenner, R. Brodet, E. Bruckman, P. Brunet, M. Bugge, L. Buschmann, P. Calvi, M. Camporesi, T. Canale, V. Carena, F. Castro, N. Cavallo, F. Chapkin, M. Charpentier, Ph. Checchia, P. Chierici, R. Chliapnikov, P. Chudoba, J. Chung, U. Cieslik, K. Collins, P. Contri, R. Cosme, G. Cossutti, F. Costa, J. Crennell, D. Cuevas, J. D'Hondt, J. Dalmau, J. da Silva, T. da Silva, W. Della Ricca, G. de Angelis, A. de Boer, W. de Clercq, C. de Lotto, B. de Maria, N. de Min, A. de Paula, L. di Ciaccio, L. di Simone, A. Doroba, K. Drees, J. Dris, M. Eigen, G. Ekelof, T. Ellert, M. Elsing, M. Espirito Santo, C. 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, Ph. 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.-O. Holt, J. Houlden, A. Hultqvist, K. Jackson, N. Jarlskog, G. Jarry, P. Jeans, D. Johansson, K. Johansson, D. Jonsson, P. Joram, C. Jungermann, L. Kapusta, F. Katsanevas, S. Katsoufis, E. Kernel, G. Kersevan, P. Kerzel, U. Kiiskinen, A. King, T. Kjaer, J. 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, H. Lopez, M. Loukas, D. Lutz, P. Lyons, L. MacNaughton, J. Malek, A. Maltezos, S. Mandl, F. Marco, J. Marco, R. Marechal, B. Margoni, M. Marin, J.-C. 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, P. Palka, H. Papadopoulou, D. 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, E. Polok, G. Poropat, P. Pozdniakov, V. Pukhaeva, N. Pullia, A. Rames, J. Ramler, L. 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. Savoy-Navarro, A. Schwickerath, U. Segar, A. Sekulin, R. Siebel, M. Sisakian, A. Smadja, G. Smirnova, O. Sokolov, A. Sopczak, A. Sosnowski, R. Spassov, T. Stanitzki, M. Stocchi, A. Strauss, J. Stugu, B. Szczekowski, M. Szeptycka, M. Szumlak, T. Tabarelli, T. Taffard, C. 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.-L. Tyapkin, A. Tyapkin, P. Tzamarias, S. Uvarov, V. Valenti, G. VanDam, P. VanEldik, J. van Lysebetten, A. van Remortel, N. VanVulpen, I. Vegni, G. Veloso, F. Venus, W. Verdier, P. Verzi, V. Vilanova, D. Vitale, L. Vrba, V. Wahlen, H. Washbrook, J. Weiser, C. Wicke, D. Wickens, J. Wilkinson, G. Winter, M. Witek, M. Yushchenko, O. Zalewska, A. Zalewski, P. Zavrtanik, D. Zhuravlov, V. Zimin, I. Zintchenko, A. Zupan, M.

Subjects
High Energy Physics::Phenomenology, High Energy Physics::Experiment
Abstract

A search for pair-produced charged Higgs bosons was performed in the data collected by the DELPHI detector at LEP II at centre-of-mass energies from 189 GeV to 209 GeV. Five different final states, τ+νττ -ν̄τ, cs̄c̄s, cs̄τ -ν̄τ, W*AW*A and W*Aτ-ν̄τ were considered, accounting for the major expected decays in type I and type II Two Higgs Doublet Models. No significant excess of data compared to the expected Standard Model processes was observed. The existence of a charged Higgs boson with mass lower than 76.7 GeV/c2 (type I) or 74.4 GeV/c2 (type II) is excluded at the 95% confidence level, for a wide range of the model parameters. Model independent cross-section limits have also been calculated.

Published
2004

29. Search for fermiophobic Higgs bosons in final states with photons at LEP 2

Author

Abdallah, J. Abreu, P. Adam, W. Adzic, P. Albrecht, T. Alderweireld, 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.-D. Arnoud, Y. Ask, S. Asman, B. Augustin, E. Augustinus, A. Baillon, P. Ballestrero, A. Bambade, P. Barbier, R. Bardin, D. Barker, G. Baroncelli, A. Battaglia, M. Baubillier, M. Becks, K-H. 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, L. Borisov, G. Botner, O. Bouquet, B. Bowcock, V. Boyko, I. Bracko, M. Brenner, R. Brodet, E. Bruckman, P. Brunet, M. Bugge, L. Buschmann, P. Calvi, M. Camporesi, T. Canale, V. Carena, F. Castro, N. Cavallo, F. Chapkin, M. Charpentier, Ph. Checchia, P. Chierici, R. Chliapnikov, P. Chudoba, J. Chung, U. Cieslik, K. Collins, P. Contri, R. Cosme, G. Cossutti, F. Costa, J. 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. DeMin, A. de Paula, L. di Ciaccio, L. di Simone, A. Doroba, K. Drees, J. Dris, M. Eigen, G. Ekelof, T. Ellert, M. Elsing, M. Espirito Santo, C. 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, Ph. 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-O. Holt, J. Houlden, A. Hultqvist, K. Jackson, N. Jarlskog, G. Jarry, P. Jeans, D. Johansson, K. Johansson, D. Jonsson, P. Joram, C. Jungermann, L. Kapusta, F. Katsanevas, S. Katsoufis, E. Kernel, G. Kersevan, P. Kerzel, U. Kiiskinen, A. King, T. Kjaer, J. 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, H. Lopez, M. Loukas, D. Lutz, P. Lyons, L. MacNaughton, J. Malek, A. Maltezos, S. Mandl, F. Marco, J. Marco, R. Marechal, B. Margoni, M. Marin, J-C. 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, P. Palka, H. Papadopoulou, D. 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, E. Polok, G. Pozdniakov, V. Pukhaeva, N. Pullia, A. Rames, J. Ramler, L. 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. Savoy-Navarro, A. Schwickerath, U. Segar, A. Sekulin, R. Siebel, M. Sisakian, A. Smadja, G. Smirnova, O. Sokolov, A. Sopczak, A. Sosnowski, R. Spassov, T. Stanitzki, M. Stocchi, A. Strauss, J. Stugu, B. Szczekowski, M. Szeptycka, M. Szumlak, T. Tabarelli, T. Taffard, C. 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-L. Tyapkin, A. Tyapkin, P. Tzamarias, S. Uvarov, V. Valenti, G. van Dam, P. van Eldik, J. van Lysebetten, A. van Remortel, N. van Vulpen, I. Vegni, G. Veloso, F. Venus, W. Verdier, P. Verzi, V. Vilanova, D. Vitale, L. Vrba, V. Wahlen, H. Washbrook, J. Weiser, C. Wicke, D. Wickens, J. Wilkinson, G. Winter, M. Witek, M. Yushchenko, O. Zalewska, A. Zalewski, P. Zavrtanik, D. Zhuravlov, V. Zimin, I. Zintchenko, A. Zupan, M.

Subjects
High Energy Physics::Phenomenology, High Energy Physics::Experiment
Abstract

Higgs boson production with subsequent decay to photons was searched for in the data collected by the DELPHI detector at centre-of-mass energies between 183 GeV and 209 GeV, corresponding to a total integrated luminosity of nearly 650 pb-1. No evidence for a signal was found, and limits were set on h0Z0 and h0A0 production with h 0 decay to photons. These results were used to exclude regions in the parameter space of fermiophobic scenarios of Two Higgs Doublet Models. © Springer-Verlag / Società Italiana di Fisica 2004.

Published
2004

30. Search for supersymmetric particles assuming A-parity non-conservation in e+e- collisions at √s = 192 to 208 GeV

Author

Abdallah, J. Abreu, P. Adam, W. Adzic, P. Albrecht, T. Alderweireld, 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.-D. Arnoud, Y. Ask, S. Asman, B. Augustin, E. Augustinus, A. Baillon, P. Ballestrero, A. Bambade, P. Barbier, R. Bardin, D. Barker, J. Baroncelli, A. Battaglia, M. Baubillier, M. Becks, K.-H. 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, L. Borisov, G. Botner, O. Bouquet, B. Bowcock, V. Boyko, I. Bracko, M. Brenner, R. Brodet, E. Bruckman, P. Brunet, M. Bugge, L. Buschmann, P. Calvi, M. Camporesi, T. Canale, V. Carena, F. Castro, N. Cavallo, F. Chapkin, M. Charpentier, Ph. Checchia, P. Chierici, R. Chliapnikov, P. Chudoba, J. Chung, U. Cieslik, K. Collins, P. Contri, R. Cosme, G. Cossutti, F. Costa, J. Crennell, D. Cuevas, J. D'Hondt, J. Dalmau, J. da Silva, T. da Silva, W. della Ricca, G. de Angelis, A. de Boer, W. de Clercq, C. de Lotto, B. de Maria, N. de Min, A. de Paula, L. di Ciaccio, L. di Simone, A. Doroba, K. Drees, J. Dris, M. Eigen, G. Ekelof, T. Ellert, M. Elsing, M. Espirito Santo, C. 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, Ph. 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.-O. Holt, J. Houlden, A. Hultqvist, K. Jackson, N. Jarlskog, G. Jarry, P. Jeans, D. Johansson, K. Johansson, D. Jonsson, P. Joram, C. Jungermann, L. Kapusta, F. Katsanevas, S. Katsoufis, E. Kernel, G. Kersevan, P. Kerzel, U. Kiiskinen, A. King, T. Kjaer, J. 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, H. Lopez, M. Loukas, D. Lutz, P. Lyons, L. MacNaughton, J. Malek, A. Maltezos, S. Mandl, F. Marco, J. Marco, R. Marechal, B. Margoni, M. Marin, J.-C. 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, P. Palka, H. Papadopoulou, D. 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, E. 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. Segar, A. Sekulin, R. Siebel, M. Sisakian, A. Smadja, G. Smirnova, O. Sokolov, A. Sopczak, A. Sosnowski, R. Spassov, T. Stanitzki, M. Stocchi, A. Strauss, J. Stugu, B. Szczekowski, M. Szeptycka, M. Szumlak, T. Tabarelli, T. Taffard, C. 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.-L. Tyapkin, A. Tyapkin, P. Tzamarias, S. Uvarov, V. Valenti, G. van Dam, P. van Eldik, J. van Lysebetten, A. van Remortel, N. van Vulpen, I. Vegni, G. Veloso, F. Venus, W. Verdier, P. Verzi, V. Vilanova, D. Vitale, L. Vrba, V. Wahlen, H. Washbrook, J. Weiser, C. Wicke, D. Wickens, J. Wilkinson, G. Winter, M. Witek, M. Yushchenko, O. Zalewska, A. Zalewski, P. Zavrtanik, D. Zhuravlov, V. Zimin, I. Zintchenko, A. Zupan, M.

Subjects
High Energy Physics::Phenomenology, High Energy Physics::Experiment
Abstract

Searches for pair-production of supersymmetric particles under the assumption of non-conservation of R-parity with a dominant LLĒ or ŪD̄D̄ term have been performed using the data collected by the DELPHI experiment at LEP in e+e- collisions at centre-of-mass energies from 192 up to 208 GeV. No excess of data above Standard Model expectations was observed. The results were used to constrain the MSSM parameter space and to derive limits on the masses of supersymmetric particles. © Springer-Verlag / Società Italiana di Fisica 2004.

Published
2004

31. Search for bs 0-B̄s 0 oscillations in delphi using high-pt leptons; The delphi collaboration

Author

Abdallah, J. Abreu, P. Adam, W. Adzic, P. Albrecht, T. Alderweireld, 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.-D. Arnoud, Y. Ask, S. Asman, B. Augustin, E. Augustinus, A. Baillon, P. Ballestrero, A. Bambade, P. Barbier, R. Bardin, D. Barker, G. Baroncelli, A. Battaglia, M. Baubillier, M. Becks, K.-H. 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, L. Borisov, G. Botner, O. Bouquet, B. Bowcock, V. Boyko, I. Bracko, M. Brenner, R. Brodet, E. Bruckman, P. Brunet, M. Bugge, L. Buschmann, P. Calvi, M. Camporesi, T. Canale, V. Carena, F. Castro, N. Cavallo, F. Chapkin, M. Charpentier, Ph. Checchia, P. Chierici, R. Chliapnikov, P. Chudoba, J. Chung, U. Cieslik, K. Collins, P. Contri, R. Cosme, G. Cossutti, F. Costa, J. Crennell, D. Cuevas, J. D'Hondt, J. Dalmau, J. da Silva, T. da Silva, W. della Ricca, G. de Angelis, A. de Boer, W. de Clercq, C. de Lotto, B. de Maria, N. de Min, A. de Paula, L. di Ciaccio, L. di Simone, A. Doroba, K. Drees, J. Dris, M. Eigen, G. Ekelof, T. Ellert, M. Elsing, M. Espirito Santo, C. 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, Ph. 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.-O. Holt, J. Houlden, A. Hultqvist, K. Jackson, N. Jarlskog, G. Jarry, P. Jeans, D. Johansson, K. Johansson, D. Jonsson, P. Joram, C. Jungermann, L. Kapusta, F. Katsanevas, S. Katsoufis, E. Kernel, G. Kersevan, P. Kerzel, U. Kiiskinen, A. King, T. Kjaer, J. 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, H. Lopez, M. Loukas, D. Lutz, P. Lyons, L. MacNaughton, J. Malek, A. Maltezos, S. Mandl, F. Marco, J. Marco, R. Marechal, B. Margoni, M. Marin, J.-C. 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, P. Palka, H. Papadopoulou, D. 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, E. Polok, G. Poropat, P. Pozdniakov, V. Pukhaeva, N. Pullia, A. Rames, J. Ramler, L. 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. Savoy-Navarro, A. Schwickerath, U. Segar, A. Sekulin, R. Siebel, M. Sisakian, A. Smadja, G. Smirnova, O. Sokolov, A. Sopczak, A. Sosnowski, R. Spassov, T. Stanitzki, M. Stocchi, A. Strauss, J. Stugu, B. Szczekowski, M. Szeptycka, M. Szumlak, T. Tabarelli, T. Taffard, C. 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.-L. Tyapkin, A. Tyapkin, P. Tzamarias, S. Uvarov, V. Valenti, G. van Dam, P. van Eldik, J. van Lysebetten, A. van Remortel, N. van Vulpen, I. Vegni, G. Veloso, F. Venus, W. Verdier, P. Verzi, V. Vilanova, D. Vitale, L. Vrba, V. Wahlen, H. Washbrook, J. Weiser, C. Wicke, D. Wickens, J. Wilkinson, G. Winter, M. Witek, M. Yushchenko, O. Zalewska, A. Zalewski, P. Zavrtanik, D. Zhuravlov, V. Zimin, I. Zintchenko, A. Zupan, M.

Abstract

Oscillations in the Bs 0-Bs 0 system were studied in events selected from about 4.3 million hadronic Z 0 decays registered by DELPHI between 1992 and 2000. This paper presents updates of two published analyses ([11,12]). The first analysis, which utilizes leptons emitted with large momentum transverse to a jet, was improved by means of a better algorithm for the vertex reconstuction and a new algorithm for flavour-tagging at production time. The second analysis, which utilizes Ds-lepton events, was improved by optimizing the treatment of proper time resolution. No signal of B0 oscillations was observed and limits on the mass difference between the physical B0 states were obtained to be: δms > 8.0ps-1 at the 95% C.L. with a sensitivity of δms = 9.1 ps-1 in the high pt lepton analysis and δms < 4.9 ps-1 at the 95% C.L. with a sensitivity of δms = 8.6 ps-1 in the D s-lepton analysis. Previously published results on these analyses are superseded. The combination of these results with those obtained in other independent analyses previously performed in DELPHI (Ds-hadron, exclusive Bs 0, inclusive vertex) gives: δm, > 8.5 ps-1 at the 95% C.L. with a sensitivity of δms = 12.0 ps-1.

Published
2004

32. The Uses and Effects of Forensic Science in the Adjudication of Felony Cases

Author

Joseph L. Peterson, Pauline J. Houlden, John P. Ryan, and Steven Mihajlovic

Subjects
media_common.quotation_subject, Jurisprudence, Convict, Innocence, Prison, Criminology, Pathology and Forensic Medicine, Scientific evidence, Principal (commercial law), Jury, Law, Genetics, Psychology, media_common, Adjudication
Abstract

This paper describes the uses and effects of forensic and other forms of evidence on the judicial processing of criminal cases. To achieve this goal, several data gathering approaches were used: surveys of laboratory scientists, interviews with prosecutors and defense attorneys, issuance of hypothetical case scenarios to prosecuting attorneys, exit surveys of citizens discharged from jury service, and a review of several thousand randomly chosen felony case filings in five prosecutors' offices. Aside from drug and alcohol related cases, firearms, bloodstains, fingerprints, hair, and semen are the leading categories of scientific evidence examined in felony prosecutions. Taking into account a variety of other sociodemographic and evidentiary factors, the authors find that scientific evidence makes little difference in prosecutors' decisions to charge defendants, or for that matter in the determination of guilt or innocence of charged defendants. Confessions emerge as the principal form of evidence influencing decisions to convict or acquit defendants. Forensic science reports and testimony have their greatest impact at the time of sentencing, when convicted defendants are more likely to go to prison and for longer periods of time where scientific evidence is presented.

Published
1987

33. Persistence of bactericidal antibodies to 5 years of age after immunization with serogroup B meningococcal vaccines at 6, 8, 12 and 40 months of age.

Author

McQuaid F, Snape MD, John TM, Kelly S, Robinson H, Houlden J, Voysey M, Toneatto D, Kitte C, Dull PM, and Pollard AJ

Subjects
Female, Humans, Infant, Male, Meningococcal Vaccines administration & dosage, Time Factors, Antibodies, Bacterial blood, Blood Bactericidal Activity, Meningococcal Vaccines immunology, Neisseria meningitidis, Serogroup B immunology
Abstract

Background: A serogroup B meningococcal vaccine (4CMenB) has been licensed by the European commission for use in various infant schedules. However, data are limited on persistence of serum bactericidal antibodies (SBA), which is necessary to inform cost-effectiveness analysis., Methods: Sera were obtained from 3 groups of 5-year-old children previously immunized at 6, 8, 12 and 40 months with either 4CMenB or rMenB (which lacks the outer membrane vesicle of 4CMenB) or at 40 and 42 months with 4CMenB only. Forty-nine control children were also recruited and blood obtained before and after 2 doses of 4CMenB at 60 and 62 months of age. Sera were tested for SBA to meningococcal B reference strains., Results: At 5 years of age, 67% of those receiving 4CMenB in infancy had SBA titers ≥1:4 for strain 44/76, 100% for 5/99, 17% for NZ98/254 and 45% for M10713. Results for rMenB recipients varied from 0 (NZ98/254) to 100% (5/99). Of those immunized with 4CMenB at 40 and 42 months, 38% had SBA titers ≥1:4 at age 5 for 44/76, 100% for 5/99, 0% (NZ98/254) and 83% (M10713). Among controls, SBA titers were ≥1:4 in 4% (H44/76, 5/99), 0% (NZ98/254) and 67% (M10713) at baseline, increasing to 100% (H44/76 and 5/99), 89% (NZ98/254) and 97% (M10713) postimmunization., Conclusion: The variable rates of waning of antibody to the 4 components of 4CMenB complicates estimates of duration of protection and should be taken into account in cost-effectiveness analyses. A 2-dose schedule of 4CMenB in 5-year-old children was immunogenic.

Published
2014
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