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1. Data-taking strategy for the precise measurement of the W boson mass with a threshold scan at circular electron positron colliders

Author

P. X. Shen, P. Azzurri, C. X. Yu, M. Boonekamp, C. M. Kuo, P. Z. Lai, B. Li, G. Li, H. N. Li, Z. J. Liang, B. Liu, J. M. Qian, and L. S. Shi

Subjects
Astrophysics, QB460-466, Nuclear and particle physics. Atomic energy. Radioactivity, QC770-798
Abstract

Abstract Circular electron positron colliders, such as the CEPC and FCC-ee, have been proposed to measure Higgs boson properties precisely, test the Standard Model, search for physics beyond the Standard Model, and so on. One of the important goals of these colliders is to measure the W boson mass with great precision by taking data around the W-pair production threshold. In this paper, the data-taking scheme is investigated to maximize the achievable precisions of the W boson mass and width with a threshold scan, when various systematic uncertainties are taken into account. The study shows that an optimal and realistic data-taking scheme is to collect data at three center-of-mass energies and that precisions of 1.0 MeV and 3.4 MeV can be achieved for the mass and width of the W boson, respectively, with a total integrated luminosity of $$\mathscr {L}=3.2$$ L=3.2 ab$$^{-1}$$ -1 and several assumptions of the systematic uncertainty sources.

Published
2020
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5. [Protective effect and mechanism of

Author

B, Tan, H, Tang, Y, Xu, M J, Chen, M Z, Wang, and J M, Qian

Subjects
Mice, Inbred C57BL, Disease Models, Animal, Mice, Colon, Lacticaseibacillus rhamnosus, Dextran Sulfate, Animals, Colitis
Published
2020

10. Long non-coding RNA growth arrest specific transcript 5 acts as a tumour suppressor in colorectal cancer by inhibiting interleukin-10 and vascular endothelial growth factor expression

Author

Hong Lin, Yuan Li, Yuhua Chen, Kun He, Shengkai Huang, J M Qian, Changzhi Huang, Mei Zhao, Caihong Zhou, Yan Li, and Dongdong Li

Subjects
Male, Vascular Endothelial Growth Factor A, 0301 basic medicine, MAP Kinase Signaling System, interleukin-10, Down-Regulation, colorectal cancer, Mice, 03 medical and health sciences, chemistry.chemical_compound, 0302 clinical medicine, Cell Line, Tumor, GAS5, Animals, Humans, Medicine, Cell Proliferation, Gene knockdown, long non-coding RNA, Cell growth, business.industry, NF-kappa B, Cancer, Middle Aged, medicine.disease, NFKB1, VEGF, Long non-coding RNA, Vascular endothelial growth factor, Vascular endothelial growth factor A, 030104 developmental biology, Oncology, chemistry, 030220 oncology & carcinogenesis, Immunology, Cancer research, Female, RNA, Long Noncoding, Colorectal Neoplasms, business, Research Paper
Abstract

Long non-coding RNAs (lncRNAs) are highly involved in diverse biological processes of human malignancies. The expression profile and underlying mechanism of lncRNA growth arrest specific transcript 5 (GAS5) in colorectal cancer (CRC) is poorly understood. In this study, we found that GAS5 was commonly downregulated in CRC tissues, serum of CRC patients and CRC cell lines. Knockdown of GAS5 promoted CRC cell proliferation and colony formation, whereas overexpression of GAS5 produced the opposite result. We further demonstrated that knockdown of GAS5 increased the expression and secretion of interleukin-10 (IL-10) and vascular endothelial growth factor (VEGF-A) via NF-κB and Erk1/2 pathways. Neutralization of IL-10 and VEGF-A reduced tumour proli feration caused by GAS5 knockdown. Moreover, GAS5 expression showed a statistically significant correlation with the mRNA levels of IL-10 and VEGF-A in CRC tissues. We further illustrated that GAS5 was markedly downregulated and negatively correlated with the cytokine expression in a mouse model of colitis-associated cancer (CAC). These results delineate a novel mechanism of lncRNA GAS5 in suppressing colorectal carcinogenesis. The cytokines IL-10 and VEGF-A inhibited by GAS5 may provide targets for lncRNA-based therapies for CRC.

Published
2017
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11. P213 Can artificial intelligence help differentiate inflammatory intestinal diseases in China? Models applying random forest and convolutional neuron network

Author

Sheng Yu, J M Qian, Yongzhe Li, Keming Lu, and Y Tong

Subjects
Crohn's disease, business.industry, Gastroenterology, medicine, General Medicine, Artificial intelligence, Neuron network, medicine.disease, INTESTINAL TUBERCULOSIS, business, Convolutional neural network, Ulcerative colitis, Random forest
Abstract

Background Differentiating between ulcerative colitis (UC), Crohn’s disease (CD) and intestinal tuberculosis (ITB) is challenging under endoscopy. We aimed to realise automatic differential diagnosis among these diseases through machine learning algorithms. Methods A total of 6399 consecutive patients (5128 UC, 875 CD and 396 ITB) who had taken colonoscopy examinations in Peking Union Medical College Hospital from January 2008 to November 2018 was enrolled. The input was the description of the endoscopic image in the form of free-text. Word segmentation and key word infiltration were conducted as data pre-processing. Random forest (RF) and convolutional neural network (CNN) were applied to different disease entities. Three two-class classifiers (UC and CD, UC and ITB, CD and ITB) and a three-class classifier (UC, CD and ITB) were built. Sensitivity/specificity and precision/recall were applied to evaluate the performance of two-class classifiers and the three-class classifier, respectively. Results The classifiers built in this research were well-performed and the CNN had a better performance in general. The RF sensitivities/specificities of UC-CD, UC-ITB and CD-ITB were 0.89/0.84, 0.83/0.82 and 0.72/0.77, while the CNN of CD-ITB was 0.90/0.77. The precision/recall of UC-CD-ITB was 0.97/0.97, 0.65/0.53 and 0.68/0.76 by RF, respectively, and 0.99/0.97,0.87/0.83 and 0.52/0.81 by CNN, respectively. Conclusion Classifiers built by RF and CNN had an excellent performance when classifying UC with CD or ITB. For the differentiation of CD and ITB, high specificity and sensitivity were reached as well. Artificial intelligence through machine learning is very promising in helping unexperienced endoscopists differentiate inflammatory intestinal diseases.

Published
2020
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12. P574 Incidence and indicators of suboptimal response to tumour necrosis factor antagonist therapy in Chinese patients with inflammatory bowel disease: Results from the EXPLORE study

Author

Pinjin Hu, Jingjing Chen, L Xie, Y Chen, Y Wang, Z Li, J M Qian, Z Wen, Qian Cao, O Fedeeva, J. Li, X Zou, X Shen, J Zhong, and Dirk Demuth

Subjects
medicine.medical_specialty, Crohn's disease, Necrosis, business.industry, Incidence (epidemiology), Gastroenterology, Antagonist, General Medicine, medicine.disease, Inflammatory bowel disease, Ulcerative colitis, Anti-Tumor Necrosis Factor Therapy, Illness length, Internal medicine, medicine, medicine.symptom, business
Abstract

Background Inflammatory bowel disease (IBD) patients may experience a suboptimal response to anti-tumour necrosis factor (TNF) therapy. In China, these data are limited. The EXPLORE study aimed to assess the incidence and indicators of suboptimal response to first-line anti-TNF agents in IBD patients in real-world practice in the newly industrialised countries. Methods The EXPLORE study was a multinational, retrospective chart review study. In the China subgroup, adult patients from 10 centres diagnosed with ulcerative colitis (UC) or Crohn’s disease (CD) and who initiated first anti-TNF treatment between March 2010 and March 2015, were included. The cumulative incidence (CI) of suboptimal response was assessed over 24 months since the anti-TNF initiation. The indicators of suboptimal response included: IBD-related hospitalisation, dose-escalation, discontinuation including switch to another anti-TNF, non-biologic therapy augmentation, or IBD-related surgery. Primary non-response (PNR) and secondary loss of response (SLOR) were defined as any suboptimal response indicator at Results Overall, 287 first-line anti-TNF treated patients (35 UC; 252 CD) were included: male, UC 54.3% (n = 19), CD 74.6% (n = 188); mean (SD) age (years), UC 43.1 (14.2), CD 31.9 (11.3); median (min-max) disease duration (years), UC 1.0 (0–9), CD Conclusion Approximately three-quarters of UC and over half of CD patients experienced a suboptimal response to their first anti-TNF agent at 24 months. Given the high unmet needs observed with anti-TNF therapies in China, IBD patients may benefit from greater optimisation of care and new biologic options.

Published
2020
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13. [Effect of VSL#3 and

Author

X C, Meng, Y N, Wang, P G, Yan, Y H, Li, H Y, Wang, J M, Qian, and J N, Li

Subjects
Mice, Inbred C57BL, Disease Models, Animal, Mice, Colon, Acute Disease, Animals, Colitis, Gastrointestinal Microbiome
Published
2019

14. P432 Barriers to prescribing anti-TNF therapy in inflammatory bowel disease (IBD) across newly industrialised emerging market countries: an analysis of the ‘EXPLORE’ study

Author

I L Khalif, Olga Fadeeva, Murat Törüner, A H Othman, J.K. Yamamoto Furusho, M Rana Qasim Khan, E Uberti Foppa, Morgane Guennec, E. Ponce De León, Alessandro Armuzzi, Byong Duk Ye, Cecilia Sison, Webber Chan, J M Qian, T Chia-Hung, and Dirk Demuth

Subjects
medicine.medical_specialty, business.industry, Gastroenterology, Medicine, Anti-TNF therapy, General Medicine, business, Intensive care medicine, medicine.disease, Emerging markets, Inflammatory bowel disease
Published
2019
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17. P155 A retrospective analysis of Clostridium difficile infection in patients with ulcerative colitis

Author

Yue Li, Hong Lv, T. Xu, J M Qian, H. Yang, J. Li, and H. Xu

Subjects
medicine.medical_specialty, Univariate analysis, business.industry, medicine.drug_class, medicine.medical_treatment, Antibiotics, Gastroenterology, Congenital cytomegalovirus infection, General Medicine, Clostridium difficile, medicine.disease, Ulcerative colitis, Infliximab, Internal medicine, medicine, Defecation, business, medicine.drug, Colectomy
Published
2017
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18. Contribution of the IBD5 locus to inflammatory bowel disease: a meta-analysis

Author

Li Wang, Jian Wang, Dong Wu, J M Qian, Xi Wang, and Hong Yang

Subjects
medicine.medical_specialty, Crohn disease, Haplotype, Inflammatory Bowel Diseases, Locus (genetics), Subgroup analysis, Biology, medicine.disease, Ulcerative colitis, Inflammatory bowel disease, Gastroenterology, Haplotypes, Internal medicine, Meta-analysis, Genetics, medicine, Humans, Publication Bias, Alleles, Genetics (clinical)
Abstract

To evaluate the association of the IBD5 locus to the predisposition of inflammatory bowel diseases (IBDs), a series of meta-analyses between five IBD5 variants (OCTN1 C1672T, OCTN2 G-207C, OCTN1/2 TC haplotype, IGR2096a_1, IGR2198a_1 and IGR2230a_1) and Crohn’s disease (CD) and ulcerative colitis (UC) were performed, which included a total of 26 studies. Overall, five IBD5 variants in a per-allele model of inheritance were significantly associated with elevated CD risk (for OCTN1: OR = 1.23, 95% CI = 1.16–1.30, P

Published
2011
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19. Genetic variant in SWI/SNF complexes influences hepatocellular carcinoma risk: a new clue for the contribution of chromatin remodeling in carcinogenesis

Author

Ti Zhang, Hong Yang, Jiao Lou, Zhenling Wang, Qian Qiu, Jing Tian, Wei Song, Xiaoping Miao, Wei Chen, Yao Tian, J M Qian, Rong Zhong, Juntao Ke, Li Wang, Xinghua Lu, Li Liu, Beibei Zhu, Min Xiao, Na Shen, Ying Wang, Hui Li, and Li Zou

Subjects
Adult, Male, Carcinoma, Hepatocellular, Carcinogenesis, Chromosomal Proteins, Non-Histone, Single-nucleotide polymorphism, Biology, medicine.disease_cause, Polymorphism, Single Nucleotide, Chromatin remodeling, Article, Risk Factors, medicine, Humans, SMARCB1, Exome, Genetic Association Studies, Aged, Genetics, Aged, 80 and over, Multidisciplinary, Liver Neoplasms, DNA Helicases, Nuclear Proteins, SMARCB1 Protein, Middle Aged, medicine.disease, Chromatin Assembly and Disassembly, SWI/SNF, digestive system diseases, DNA-Binding Proteins, Hepatocellular carcinoma, Case-Control Studies, SMARCA4, Female, Transcription Factors
Abstract

Chromatin remodeling has been newly established as an important cancer genome characterization and recent exome and whole-genome sequencing studies of hepatocellular carcinoma (HCC) showed that recurrent inactivating mutations in SWI/SNF subunits involved in the molecular basis of hepatocarcinogenesis. To test the hypothesis that genetic variants in the key subunits of SWI/SNF complexes may contribute to HCC susceptibility, we systematically assessed associations of genetic variants in SWI/SNF complexes with HCC risk using a two-staged case-control study in Chinese population. A set of 24 single nucleotide polymorphisms (SNPs) in SWI/SNF complexes were examined in stage 1 with 502 HCC patients and 487 controls and three promising SNPs (SMARCA4 rs11879293, rs2072382 and SMARCB1 rs2267032) were further genotyped in stage 2 comprising 501 cases and 545 controls for validation. SMARCA4 rs11879293 presented consistently significant associations with the risk of HCC at both stages, with an OR of 0.73 (95% CI: 0.62–0.87) using additive model in combined analysis. Moreover, the decreased risk of HCC associated with SMARCA4 rs11879293 AG/AA was more evident among HBsAg positive individuals (OR = 0.47, 95% CI: 0.27–0.80) in combined analysis. The study highlighted the potential role of the SWI/SNF complexes in conferring susceptibility to HCC, especially modified HCC risk by HBV infection.

Published
2013

20. Measurement of the B00 mixing parameter and the Z → b forward-backward asymmetry

Author

Qi An, T. Spickermann, A. Arefiev, Michael Dittmar, P. Kapinos, P. Duinker, Simonetta Gentile, G. Tsipolitis, X. Y. Yao, Bernard Ille, H. Janssen, Kenneth Francis Read, Charles Leggett, Aa Vorobyov, E. Brambilla, John Swain, D. Hauschildt, J. Busenitz, R. Leiste, Christoph Paus, S. Khokhar, H. Anderhub, K. Sudhakar, Peter Denes, Paolo Bagnaia, W. Lu, Y. Mi, Federico Cindolo, S. C. Tonwar, Frank Filthaut, Patricia McBride, Thomas Ferguson, M. T. Choi, K. Riles, A. Böhm, Marco Meschini, Y. J. Pei, D. Kirkby, Francesca Nessi-Tedaldi, J. B. Ye, J. D. Burger, Ren-Yuan Zhu, Luciano Barone, M. Möller, M. MacDermott, Christopher George Tully, J. Mnich, F. C. Erné, B. De La Cruz, G. Hu, H. Kuijten, Wolfgang Lohmann, Roberto Castello, B. Bertucci, S. C. Kim, S. Pensotti, Valery Schegelsky, Antonino Zichichi, F. Marzano, G. Coignet, W. Krenz, G. Forconi, T. Angelescu, Nicanor Colino, G. Rahal-Callot, M. N. Kienzle-Focacci, Ph Fisher, R. Rosmalen, V. Soulimov, E. Valente, Tariq Aziz, B. Monteleoni, Lamberto Luminari, D. Perret-Gallix, M. Vivargent, M. Sachwitz, D. McNally, A. Gurtu, Gerard Fernandez, A. Buytenhuijs, C. Burgos, Speranza Falciano, C. G. Yang, W. van Rossum, A. Tsaregorodtsev, H. Rykaczewski, Z. Z. Xu, Giovanni Organtini, J. Casaus, Yu. Kamyshkov, P. Spillantini, Y. Karyotakis, S. Chung, G. Chiefari, S. Shevchenko, P.V.K.S. Baba, Q. Ye, S. Roth, K. Y. Lee, A. Marin, P. Extermann, Christoph Schäfer, B. Z. Yang, H. J. Schreiber, S. Shotkin, J. S. Lee, D. Pandoulas, Elisabetta Gallo, Pierluigi Paolucci, M. Gailloud, H. Hofer, G. Chen, Yueh-Feng Liu, P. Zemp, R. de Asmundis, O. Rind, P. de Jong, R. C. Ball, K. Schultze, H. Suter, E. Nagy, D. Lanske, Sc Yeh, Attilio Santocchia, Jean Fay, Zheng Wang, Yu. Galaktionov, J. Alcaraz, Pierre Lecomte, F. Behner, Howard A. Stone, W. Kittel, A. Hasan, Andrea Baschirotto, Kajari Mazumdar, Simone Paoletti, Manjit Kaur, G. Sartorelli, Adrian Biland, Wt Lin, V. Shoutko, Nicolas Produit, Giovanni Ambrosi, G. Viertel, Hans J. Vogel, S. Morganti, B. C. Riemers, A. A. Syed, H. El Mamouni, G. Cara Romeo, B. P. Roe, W. W. Kinnison, X. R. Shi, M. Bourquin, Y. F. Wang, A. Adam, Egidio Longo, K. Strauch, Felicitas Pauss, P. Vikas, Werner Lustermann, J. Schwenke, J. A. Rubio, M. Fabre, X. Y. Cui, M. E. Sarakinos, M. Rescigno, S. Reucroft, A. Pevsner, Crisostomo Sciacca, Marco Pieri, A. Malinin, P. Arce, Roberto Battiston, A. Robohm, S. Rosier-Lees, S. Costantini, P. Le Coultre, M. Basile, E. Koffeman, R. Timellini, Luciano Romero, M. Yzerman, M. Tonutti, U. Vikas, D. Goujon, D. Luckey, A. C. Weber, Gerjan Bobbink, B. Borgia, C. Willmott, Cheng Chen, A. Mihul, M. M. Ilyas, K. S. Kumar, W. J. Burger, G. S. Sanders, P. Ladron de Guevara, Igor Vorobiev, Y. S. Lu, F. Wittgenstein, P. Levtchenko, Vincenzo Innocente, K. N. Qureshi, B. Lindemann, M. Hebert, D. H. Zhang, F. Sticozzi, Panos A Razis, A. Engler, BT Bouwens, J. Ulbricht, D.W. Schmitz, G. Pascale, Chenjie Gu, A. Bujak, Oliver Kornadt, M. Pohl, G.G.G. Massaro, R. Mount, Nicola Cavallo, Marcel Merk, N. E. Moulai, A. Gougas, Claudio Luci, J. M. Le Goff, P. Marchesini, M. Capell, D. Boutigny, C. Zaccardelli, J. K. Kim, Tobias Kramer, Konrad Deiters, M. Acciarri, Gy L. Bencze, Robert Clare, Thomas Hebbeker, Paul Lecoq, R. W. Kraemer, O. Toker, A. Kasser, H. S. Fesefeldt, V. Brigljevic, D. P. Stickland, D. M. Lee, G. Mirabelli, I. Clare, Alberto Aloisio, A. Ricker, I. Leedom, M. Napolitano, Reinhard W. Schulte, I. Josa-Mutuberria, T. Paul, J. P. Martin, J. Berdugo, M. Röhner, H. S. Chen, C. Maña, L. Servoli, A. Kunin, J. M. Salicio, E. J. Sanchez, Dimitri Bourilkov, U. Uwer, Stefan Kirsch, Z. F. Gong, K. Lübelsmeyer, A. Chen, J. Salicio, F. J. Rodriguez, R. Weill, T. E. Coan, J. G. Branson, G. Schwering, G. Sauvage, F. Plasil, L. Antonov, Mingshui Chen, M. Zeng, A. Lebedev, M. Gruenewald, J. Gerald, Dong-Chul Son, N. Scholz, Raffaello D'Alessandro, J. C. Pinto, Davide Piccolo, Vincenzo Monaco, Georgi Sultanov, T. S. Dai, I. Sheer, J. J. Blaising, Stefano Giagu, M. L. Brooks, A. L. Anderson, S. N. Ganguli, M. Redaelli, R. A. Khan, P. A. Piroué, B. C.C. van der Zwaan, Zhuoxiang Ren, S. R. Hou, M. Wadhwa, R. T. Van de Walle, D. J. Schotanus, H. A. Rizvi, J. F. Zhou, X. L. Wang, A. Degré, T. Tuuva, U. K. Chaturvedi, An.A. Vorobyov, P. G. Rancoita, Mariagrazia Alviggi, V. P. Andreev, Leonardo Merola, V. R. Krastev, O. Adriani, Lucas Taylor, M. Chemarin, B. N. Jin, H. Nowak, Zhiqing Zhang, F. Marion, G. B. Mills, M. Rattaggi, J. M. You, G. M. Chen, Hafeez R Hoorani, E. Fiandrini, J. Tóth, M. Schneegans, Luca Malgeri, J. M. Qian, W. Wallraff, M. Caria, S. Banerjee, J. H. Field, G. Trowitzsch, C. Y. Chien, I. Vetlitsky, A. Kirkby, N. Yunus, A. Koulbardis, G. Gratta, A. Bykov, C. Li, T. Azemoon, Luisa Cifarelli, W. J. Metzger, S. Goldfarb, Marcos Cerrada, G. M. Bilei, J. T. He, S. Patricelli, G. Landi, Ingrid U. Scott, F. L. Linde, H. R. Gustafson, Marcella Diemoz, V. Plyaskin, L. Fredj, L. Djambazov, Harvey B Newman, L. J. Gutay, U. Becker, I. Duran, H. Vogt, F. J. Eppling, G. J. Zhou, L. W. Jones, K. Hilgers, S. M. Ting, S. Easo, M. T. Dova, H. O. Cohn, X. T. Cui, R. Barillère, A. Sopczak, S. P. Ahlen, J. A. Bakken, M. Sassowsky, Samuel C.C. Ting, G. F. Sussino, G. Passaleva, V. K. Gupta, S. Ro, R. Bizzarri, Gianpaolo Carlino, F. DeNotaristefani, S. X. Wu, C. Dionisi, P. Berges, L. Urbán, Pablo Garcia-Abia, Alain Hervé, A. Bay, A. Nippe, D. Duchesneau, Carlo Civinini, M. Maolinbay, G. Raven, M. A. Niaz, D. DiBitonto, Ph. Rosselet, M. Aguilar-Benitez, W.G. Ma, Y. G. Kim, Y. H. Chang, C. H. Ye, Herwig Schopper, B. Zhou, M. Steuer, H. Postema, George Alverson, E. Dénes, J. S. Kapustinsky, J. Weber, Maurizio Biasini, P. Schmitz, Alexei Klimentov, L. Z. Sun, C. Spartiotis, K. Freudenreich, Marta Felcini, Francesco Becattini, E. Gonzalez, M. Lenti, K. Banicz, S. Lanzano, S. Röhner, I. C. Brock, H. F. Chen, L. Ludovici, P. Lebrun, S. Wynhoff, E. Drago, R. Morand, F. Ferroni, M. Guanziroli, Y. Zeng, H. R. Dimitrov, A. Rubbia, D. H. Wright, N. Gheordanescu, P. G. Seiler, Y. Mir, R. Malik, E. Shumilov, J. C. Sens, G. Yang, B. L. Betev, A. M. Cartacci, R. Raghavan, A. C. König, G. Alkhazov, Laurent Vuilleumier, X. W. Tang, R. Sehgal, D Kim, A. Favara, V. Pojidaev, J. M. Lubbers, R. Fabbretti, Luca Lista, V. Koutsenko, D. Fernandez, Juven Wang, Sabine Riemann, T.R. McMahon, S. Müller, Xd Cai, F. Cesaroni, M. Chamizo, Emilio Leonardi, R. Bock, L. Baksay, F. Cotorobai, M. Pauluzzi, D. Ren, J. Shukla, and D. Antreasyan

Subjects
Physics, Nuclear and High Energy Physics, Particle physics, Muon, 010308 nuclear & particles physics, Electron–positron annihilation, media_common.quotation_subject, Electroweak interaction, Weinberg angle, 01 natural sciences, Asymmetry, Nuclear physics, Momentum, 0103 physical sciences, High Energy Physics::Experiment, Nuclear Experiment, 010306 general physics, Mixing (physics), Lepton, media_common
Abstract

We have measured the time integrated B0 B 0 mixing parameter and the forward-backward asymmetry in the process e+e− → b b using hadronic events containing muons or electrons. The data sample corresponds to 1,044,000 hadronic decays of the Z. From a fit to the momentum and transverse momentum distributions for single lepton and dilepton events, we have determined the B0 B 0 mixing parameter to be χB = 0.123 ± 0.012 (stat.) ± 0.008 (sys.), and the b b forward-backward asymmetry at the effective center-of-mass energy √s = 91.30 GeV to be A b b = 0.087 ± 0.011 ( stat. ) ± 0.004 ( sys. ) This measurement corresponds to a value of the effective electroweak mixing angle of sin 2 θ w = 0.2335 ± 0.0021 .

Published
1994
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21. Measurement of the Inclusive B-]Tau-Nu-X Branching Ratio

Author

M. ACCIARRI, A. ADAM, O. ADRIANI, M. AGUILARBENITEZ, S. AHLEN, J. ALCARAZ, G. ALVERSON, G. AMBROSI, Q. AN, H. ANDERHUB, A. L. ANDERSON, V. P. ANDREEV, T. ANGELESCU, L. ANTONOV, D. ANTREASYAN, G. ALKHAZOV, P. ARCE, A. AREFIEV, T. AZEMOON, T. AZIZ, P. V. K., P. BAGNAIA, J. A. BAKKEN, L. BAKSAY, R. C. BALL, S. BANERJEE, K. BANICZ, R. BARILLERE, L. BARONE, A. BASCHIROTTO, R. BATTISTON, A. BAY, F. BECATTINI, U. BECKER, G. L. BENCZE, J. BERDUGO, P. BERGES, B. BERTUCCI, B. L. BETEV, M. BIASINI, A. BILAND, G. M. BILEI, R. BIZZARRI, J. J. BLAISING, G. J. BOBBINK, R. BOCK, A. BOHM, B. BORGIA, D. BOURILKOV, M. BOURQUIN, D. BOUTIGNY, B. BOUWENS, E. BRAMBILLA, J. G. BRANSON, V. BRIGLJEVIC, I. C. BROCK, M. BROOKS, A. BUJAK, J. D. BURGER, W. J. BURGER, C. BURGOS, J. BUSENITZ, A. BUYTENHUIJS, A. BYKOV, X. D. CAI, M. CAPELL, M. CARIA, G. CARLINO, A. M. CARTACCI, J. CASAUS, R. CASTELLO, N. CAVALLO, M. CERRADA, F. CESARONI, M. CHAMIZO, Y. H. CHANG, U. K. CHATURVEDI, M. CHEMARIN, A. CHEN, C. CHEN, G. CHEN, G. M. CHEN, H. F. CHEN, H. S. CHEN, M. CHEN, C. Y. CHIEN, M. T. CHOI, S. CHUNG, C. CIVININI, I. CLARE, R. CLARE, T. E. COAN, H. O. COHN, G. COIGNET, N. COLINO, A. CONTIN, S. COSTANTINI, F. COTOROBAI, B. DELACRUZ, X. T. CUI, X. Y. CUI, T. S. DAI, R. DALESSANDRO, R. DEASMUNDIS, A. DEGRE, K. DEITERS, E. DENES, P. DENES, F. DENOTARISTEFANI, D. DIBITONTO, M. DIEMOZ, H. R. DIMITROV, C. DIONISI, L. DJAMBAZOV, M. T. DOVA, E. DRAGO, D. DUCHESNEAU, P. DUINKER, I. DURAN, S. EASO, H. ELMAMOUNI, A. ENGLER, F. J. EPPLING, F. C. ERNE, P. EXTERMANN, R. FABBRETTI, M. FABRE, S. FALCIANO, S. J. FAN, A. FAVARA, J. FAY, M. FELCINI, T. FERGUSON, D. FERNANDEZ, G. FERNANDEZ, F. FERRONI, H. FESEFELDT, E. FIANDRINI, J. H. FIELD, F. FILTHAUT, P. H. FISHER, G. FORCONI, L. FREDJ, K. FREUDENREICH, M. FUKUSHIMA, M. GAILLOUD, Y. GALAKTIONOV, E. GALLO, S. N. GANGULI, P. GARCIAABIA, S. GENTILE, J. GERALD, N. GHEORDANESCU, S. GIAGU, S. GOLDFARB, Z. F. GONG, E. GONZALEZ, A. GOUGAS, D. GOUJON, G. GRATTA, M. 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Subjects
E+E-PHYSICS, LUND MONTE-CARLO, HADRONS, High Energy Physics::Experiment, Z(0), Nuclear Experiment, GeneralLiterature_REFERENCE(e.g.,dictionaries,encyclopedias,glossaries), JET FRAGMENTATION, DECAYS, L3 EXPERIMENT
Abstract

Using the L3 detector, the branching ratio BR(b --> taunuX) has been measured using a sample of Z --> bbBAR events tagged by high momentum and high transverse momentum leptons in one hemisphere and with missing energy in the opposite hemisphere. From a sample of 948000 hadronic events we find BR(b --> taunuX) = (2.4 +/- 0.7 (stat.) +/- 0.8 (syst.))%.

Published
1994

22. Measurement of the B(0)-(B)over-Bar(0) Mixing Parameter and the Z-]B(B)over-Bar Forward-Backward Asymmetry

Author

M. ACCIARRI, A. ADAM, O. ADRIANI, M. AGUILARBENITEZ, S. AHLEN, J. ALCARAZ, G. ALVERSON, G. AMBROSI, Q. AN, H. ANDERHUB, A. L. ANDERSON, V. P. ANDREEV, T. ANGELESCU, L. ANTONOV, D. ANTREASYAN, G. ALKHAZOV, P. ARCE, A. AREFIEV, T. AZEMOON, T. AZIZ, P. V. K., P. BAGNAIA, J. A. BAKKEN, L. BAKSAY, R. C. BALL, S. BANERJEE, K. BANICZ, R. BARILLERE, L. BARONE, A. BASCHIROTTO, M. BASILE, R. BATTISTON, A. BAY, F. BECATTINI, U. BECKER, F. BEHNER, G. L. BENCZE, J. BERDUGO, P. BERGES, B. BERTUCCI, B. L. BETEV, M. BIASINI, A. BILAND, G. M. BILEI, R. BIZZARRI, J. J. BLAISING, G. J. BOBBINK, R. BOCK, A. BOHM, B. BORGIA, D. BOURILKOV, M. BOURQUIN, D. BOUTIGNY, B. BOUWENS, E. BRAMBILLA, J. G. BRANSON, V. BRIGLJEVIC, I. C. BROCK, M. BROOKS, A. BUJAK, J. D. BURGER, W. J. BURGER, C. BURGOS, J. BUSENITZ, A. BUYTENHUIJS, A. BYKOV, X. D. CAI, M. CAPELL, G. C. ROMEO, M. CARIA, G. CARLINO, A. M. CARTACCI, J. CASAUS, R. CASTELLO, N. CAVALLO, M. CERRADA, F. CESARONI, M. CHAMIZO, Y. H. CHANG, U. K. CHATURVEDI, M. CHEMARIN, A. CHEN, C. CHEN, G. CHEN, G. M. CHEN, H. F. CHEN, H. S. CHEN, M. CHEN, C. Y. CHIEN, M. T. CHOI, S. CHUNG, L. CIFARELLI, F. CINDOLO, C. CIVININI, I. CLARE, R. CLARE, T. E. COAN, H. O. COHN, G. COIGNET, N. COLINO, S. COSTANTINI, F. COTOROBAI, B. DELACRUZ, X. T. CUI, X. Y. CUI, T. S. DAI, R. DALESSANDRO, R. DEASMUNDIS, A. DEGRE, K. DEITERS, E. DENES, P. DENES, F. DENOTARISTEFANI, D. DIBITONTO, M. DIEMOZ, H. R. DIMITROV, C. DIONISI, M. DITTMAR, L. DJAMBAZOV, M. T. DOVA, E. DRAGO, D. DUCHESNEAU, P. DUINKER, I. DURAN, S. EASO, H. ELMAMOUNI, A. ENGLER, F. J. EPPLING, F. C. ERNE, P. EXTERMANN, R. FABBRETTI, M. FABRE, S. FALCIANO, A. FAVARA, J. FAY, M. FELCINI, T. FERGUSON, D. FERNANDEZ, G. FERNANDEZ, F. FERRONI, H. FESEFELDT, E. FIANDRINI, J. H. FIELD, F. FILTHAUT, P. H. FISHER, G. FORCONI, L. FREDJ, K. FREUDENREICH, M. GAILLOUD, Y. GALAKTIONOV, E. GALLO, S. N. GANGULI, P. GARCIAABIA, S. GENTILE, J. GERALD, N. GHEORDANESCU, S. GIAGU, S. GOLDFARB, Z. F. GONG, E. GONZALEZ, A. 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Subjects
PHYSICS, HADRONIC Z(0) DECAYS, E+E ANNIHILATION, FERMION PAIR PRODUCTION, LUND MONTE-CARLO, QED CORRECTIONS, High Energy Physics::Experiment, SEMILEPTONIC BRANCHING RATIOS, Nuclear Experiment, Z0 DECAYS, MESONS, GeneralLiterature_REFERENCE(e.g.,dictionaries,encyclopedias,glossaries), JET FRAGMENTATION
Abstract

We have measured the time integrated B0-BBAR0 mixing parameter and the forward-backward asymmetry in the process e+e- --> bbBAR using hadronic events containing muons or electrons. The data sample corresponds to 1,044,000 hadronic decays of the Z. From a fit to the momentum and transverse momentum distributions for single lepton and dilepton events, we have determined the B0-BBAR0 mixing parameter to be chi(B) = 0.123 +/- 0.012 (stat.) +/- 0.008 (sys.), and the bbBAR forward-backward asymmetry at the effective center-of-mass energy square-root s = 91.30 GeV to be A(bbBAR) = 0.087 +/- 0.011 (stat.) +/- 0.004 (sys.) This measurement corresponds to a value of the effective electroweak mixing angle of sin2thetaBAR(w) = 0.2335 +/- 0.0021.

Published
1994

23. The Performance of Three-Sample Qualitative Immunochemical Fecal Test to Detect Colorectal Adenoma and Cancer in Gastrointestinal Outpatients: An Observational Study

Author

Weixun Zhou, Dong Wu, J M Qian, Han-Qing Luo, and Jing-Nan Li

Subjects
Male, Epidemiology, Colorectal cancer, lcsh:Medicine, Colonoscopy, Global Health, Gastroenterology, Feces, Gastrointestinal Cancers, Outpatients, Medicine and Health Sciences, Clinical Epidemiology, Public and Occupational Health, lcsh:Science, Aged, 80 and over, education.field_of_study, Multidisciplinary, medicine.diagnostic_test, Middle Aged, Oncology, Research Design, Observational Studies, Female, Anatomy, Colorectal Neoplasms, Research Article, Adenoma, Adult, medicine.medical_specialty, Adolescent, Colon, Clinical Research Design, Population, Surgical and Invasive Medical Procedures, Gastroenterology and Hepatology, Colorectal adenoma, Research and Analysis Methods, Digestive System Procedures, Young Adult, Diagnostic Medicine, Internal medicine, Cancer Detection and Diagnosis, medicine, Carcinoma, Humans, education, Aged, Retrospective Studies, business.industry, lcsh:R, Biology and Life Sciences, Cancers and Neoplasms, Cancer, Endoscopy, Retrospective cohort study, medicine.disease, Gastrointestinal Tract, lcsh:Q, business, Digestive System
Abstract

Background Repeated qualitative fecal immunochemical test (qlFIT) is a clinical strategy widely used to detect lower gastrointestinal lesions, but its diagnostic power has not been assessed in opportunistic screening for colorectal neoplasia. Objective This study aimed to determine the performance of three-sample qlFIT in screening for colorectal cancer and its precursors in high-risk participants. Methods 513 gastrointestinal outpatients yielded three qlFITs before a standard colonoscopy. We evaluated the diagnostic value of one, two, and three positive qlFITs serving as the positivity threshold. The risk factors of colorectal neoplasia to yield positive qlFITs were also determined. Results 52 patients were diagnosed with colorectal cancer and 70 with advanced adenomatous polyp. For colorectal cancer, the sensitivity and specificity of one positive qlFIT were 90.4% and 53.8%, of two were 80.8% and 75.1%, and of three were 53.9% and 88.5%, respectively. For advanced adenomatous polyp, the sensitivity and specificity of one positive qlFIT were 81.4% and 54.2%, of two were 50.0% and 72.5%, and of three were 28.6% and 86.2%. Left-sided location (OR 2.50, 95%CI 1.26–4.95) and advanced histology of tumors (OR 3.08, 95%CI 1.58–6.01) were independently associated with positive qlFITs. Conclusions Three-sample qlFIT is a reasonably good method to detect colorectal neoplasia in high-risk population. Tumors in the left side or with advanced pathological features are more likely to produce positive qlFITs.

Published
2014
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24. Integrative Genomic Analysis Identifies That SERPINA6-rs1998056 Regulated by FOXA/ERα Is Associated with Female Hepatocellular Carcinoma

Author

Wei Chen, Jing Gong, Li Zou, Na Shen, Rong Zhong, Li Wang, Ying Wang, Beibei Zhu, Xinghua Lu, J M Qian, Xiaoping Miao, An-Yuan Guo, and Jing Tian

Subjects
Hepatocyte Nuclear Factor 3-alpha, Carcinoma, Hepatocellular, dbSNP, Epidemiology, lcsh:Medicine, Estrogen receptor, Gastroenterology and Hepatology, Biology, Polymorphism, Single Nucleotide, Gastrointestinal Cancers, Genetic model, Hepatocyte Nuclear Factors, Genetics, Cancer Genetics, Medicine and Health Sciences, Humans, Genetic Predisposition to Disease, RNA, Messenger, lcsh:Science, Genetic Association Studies, Transcortin, Multidisciplinary, Liver Diseases, Cancer Risk Factors, lcsh:R, Liver Neoplasms, Estrogen Receptor alpha, Biology and Life Sciences, Human Genetics, Promoter, Genomics, Hep G2 Cells, Middle Aged, Hepatocyte nuclear factors, Liver, Oncology, Case-Control Studies, Genetic Epidemiology, Genetics of Disease, Hepatocyte Nuclear Factor 3-beta, lcsh:Q, Female, FOXA2, FOXA1, Estrogen receptor alpha, Cancer Epidemiology, Research Article
Abstract

The human forkhead box A1 (FOXA1) and A2 (FOXA2) transcription factors have been found to control estrogen and androgen signaling through co-regulating target genes with sex hormone receptors. Here we used an integrative strategy to examine the hypothesis that genetic variants at FOXA1/2 binding elements may be associated with sexual dimorphism of hepatocellular carcinoma (HCC) risk. Firstly we extracted chromatin immunoprecipitation-sequencing (ChIP-seq) data of FOXA1, FOXA2 and estrogen receptor 1(ERα) from ENCODE database to obtain dual target regions of FOXA/ERα, and further intersected these regions with genes' promoters. Then we used MATCH program to predict FOXA binding elements, in which genetic variants were retrieved by dbSNP database (NCBI, build 134). A total of 15 candidate variants were identified in this stage. Secondly we performed a case-control study with 1,081 HCC patients and 2,008 matched controls and found a significant association of SERPINA6-rs1998056 with female HCC risk under common genetic models (e.g. GG versus CC: OR = 2.03, 95% CI = 1.26-3.27, P = 0.004). Moreover, results from our real-time quantitative polymerase chain reaction (qPCR) using 72 normal liver tissues adjacent to the tumors showed that SERPINA6 expression was significantly different among different genotypes of this variant (GG versus CC: P = 0.032; Group test: P = 0.060). In summary, our study suggested that SERPINA6-rs1998056 regulated by FOXA/ERα might be associated with female HCC risk.

Published
2014
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25. B-Asterisk Production in Z-Decays at Lep

Author

M. ACCIARRI, A. ADAM, O. ADRIANI, M. AGUILARBENITEZ, S. AHLEN, J. ALCARAZ, G. ALVERSON, G. AMBROSI, Q. AN, H. ANDERHUB, A. L. ANDERSON, V. P. ANDREEV, T. ANGELESCU, L. ANTONOV, D. ANTREASYAN, G. ALKHAZOV, P. ARCE, A. AREFIEV, T. AZEMOON, T. AZIZ, P. V. K., P. BAGNAIA, J. A. BAKKEN, L. BAKSAY, R. C. BALL, S. BANERJEE, K. BANICZ, R. BARILLERE, L. BARONE, A. BASCHIROTTO, M. BASILE, R. BATTISTON, A. BAY, F. BECATTINI, U. BECKER, F. BEHNER, G. L. BENCZE, J. BERDUGO, P. BERGES, B. BERTUCCI, B. L. BETEV, M. BIASINI, A. BILAND, G. M. BILEI, R. BIZZARRI, J. J. BLAISING, G. J. BOBBINK, R. BOCK, A. BOHM, B. BORGIA, A. BOUCHAM, D. BOURILKOV, M. BOURQUIN, D. BOUTIGNY, B. BOUWENS, E. BRAMBILLA, J. G. BRANSON, V. BRIGLJEVIC, I. C. BROCK, M. BROOKS, A. BUJAK, J. D. BURGER, W. J. BURGER, C. BURGOS, J. BUSENITZ, A. BUYTENHUIJS, A. BYKOV, X. D. CAI, M. CAPELL, G. C. ROMEO, M. CARIA, G. CARLINO, A. M. CARTACCI, J. CASAUS, R. CASTELLO, N. CAVALLO, M. CERRADA, F. CESARONI, M. CHAMIZO, Y. H. CHANG, U. K. CHATURVEDI, M. CHEMARIN, A. CHEN, C. CHEN, G. CHEN, G. M. CHEN, H. F. CHEN, H. S. CHEN, M. CHEN, C. Y. CHIEN, M. T. CHOI, S. CHUNG, L. CIFARELLI, F. CINDOLO, C. CIVININI, I. CLARE, R. CLARE, T. E. COAN, H. O. COHN, G. COIGNET, N. COLINO, S. COSTANTINI, F. COTOROBAI, B. DELACRUZ, X. T. CUI, X. Y. CUI, T. S. DAI, R. DALESSANDRO, R. DEASMUNDIS, A. DEGRE, K. DEITERS, E. DENES, P. DENES, F. DENOTARISTEFANI, D. DIBITONTO, M. DIEMOZ, H. R. DIMITROV, C. DIONISI, M. DITTMAR, L. DJAMBAZOV, I. DORNE, M. T. DOVA, E. DRAGO, D. DUCHESNEAU, F. DUHEM, P. DUINKER, I. DURAN, S. DUTTA, S. EASO, H. ELMAMOUNI, A. ENGLER, F. J. EPPLING, F. C. ERNE, P. EXTERMANN, R. FABBRETTI, M. FABRE, S. FALCIANO, A. FAVARA, J. FAY, M. FELCINI, T. FERGUSSON, D. FERNANDEZ, G. FERNANDEZ, F. FERRONI, H. FESEFELDT, E. FIANDRINI, J. H. FIELD, F. FILTHAUT, P. H. FISHER, G. FORCONI, L. FREDJ, K. FREUDENREICH, M. GAILLOUD, Y. GALAKTIONOV, E. GALLO, S. N. GANGULI, P. GARCIAABIA, S. GENTILE, J. GERALD, N. GHEORDANESCU, S. GIAGU, S. GOLDFARB, J. GOLDSTEIN, Z. F. GONG, E. GONZALEZ, A. GOUGAS, D. GOUJON, G. GRATTA, M. W. GRUENEWALD, C. GU, M. GUANZIROLI, V. K. GUPTA, A. GURTU, H. R. GUSTAFSON, L. J. GUTAY, A. HASAN, D. HAUSCHILDT, J. T. HE, T. HEBBEKER, M. HEBERT, A. HERVE, K. HILGERS, H. HOFER, H. HOORANI, S. R. HOU, G. HU, B. ILLE, M. M. ILYAS, V. INNOCENTE, H. JANSSEN, B. N. JIN, L. W. JONES, P. DEJONG, I. JOSAMUTUBERRIA, A. KASSER, R. A. KHAN, Y. KAMYSHKOV, P. KAPINOS, J. S. KAPUSTINSKY, Y. KARYOTAKIS, M. KAUR, S. KHOKHAR, M. N. KIENZLEFOCACCI, D. KIM, J. K. KIM, S. C. KIM, Y. G. KIM, W. W. KINNISON, A. KIRBY, D. KIRKBY, S. KIRSCH, W. KITTEL, A. KLIMENTOV, A. C. KONIG, E. KOFFEMAN, O. KORNADT, V. KOUTSENKO, A. KOULBARDIS, R. W. KRAEMER, T. KRAMER, V. R. KRASTEV, W. KRENZ, H. KUIJTEN, K. S. KUMAR, A. KUNIN, P. L. DEGUEVARA, G. LANDI, D. LANSKE, S. LANZANO, A. LEBEDEV, P. LECOMTE, P. LECOQ, P. LECOULTRE, D. M. LEE, J. S. LEE, K. Y. LEE, I. LEEDOM, C. LEGGETT, J. M. LEGOFF, R. LEISTE, M. LENTI, E. LEONARDI, P. LEVTCHENKO, C. LI, E. LIEB, W. T. LIN, F. L. LINDE, B. LINDEMANN, L. LISTA, Y. LIU, W. LOHMANN, E. LONGO, W. LU, Y. S. LU, J. M. LUBBERS, K. LUBELSMEYER, C. LUCI, D. LUCKEY, L. LUDOVICI, L. LUMINARI, W. LUSTERMANN, W. G. MA, M. MACDERMOTT, M. MAITY, L. MALGERI, R. MALIK, A. MALININ, C. MANA, S. MANGLA, M. MAOLINBAY, P. MARCHESINI, A. MARIN, J. P. MARTIN, F. MARZANO, G. G. G., K. MAZUMDAR, P. MCBRIDE, T. MCMAHON, D. MCNALLY, S. MELE, M. MERK, M. MESCHINI, W. J. METZGER, Y. MI, A. MIHUL, G. B. MILLS, Y. MIR, G. MIRABELLI, J. MNICH, M. MOLLER, V. MONACO, B. MONTELEONI, R. MORAND, S. MORGANTI, N. E. MOULAI, R. MOUNT, S. MULLER, E. NAGY, F. NESSITEDALDI, H. NEWMAN, M. A. NIAZ, A. NIPPE, H. NOWAK, G. ORGANTINI, D. PANDOULAS, S. PAOLETTI, P. PAOLUCCI, G. PASCALE, G. PASSALEVA, T. PAUL, M. PAULUZZI, C. PAUS, F. PAUSS, Y. J. PEI, S. PENSOTTI, D. PERRETGALLIX, A. PEVSNER, D. PICCOLO, M. PIERI, J. C. PINTO, P. A. PIROUE, E. PISTOLESI, F. PLASIL, V. PLYASKIN, M. POHL, V. POJIDAEV, H. POSTEMA, N. PRODUIT, J. M. QIAN, K. N. QURESHI, R. RAGHAVAN, G. RAHALCALLOT, P. G. RANCOITA, M. RATTAGGI, G. RAVEN, P. RAZIS, K. READ, M. REDAELLI, D. REN, Z. REN, M. RESCIGNO, S. REUCROFT, A. RICKER, S. RIEMAN, B. C. RIEMERS, K. RILES, O. RIND, H. A. RIZVI, S. RO, A. ROBOHM, F. J. RODRIGUEZ, B. P. ROE, M. ROHNER, S. ROHNER, L. ROMERO, S. ROSIERLEES, R. ROSMALEN, P. ROSSELET, W. VANROSSUM, S. ROTH, A. RUBBIA, J. A. RUBIO, H. RYKACZEWSKI, J. SALICIO, J. M. SALICIO, E. SANCHEZ, G. S. SANDERS, A. SANTOCCHIA, M. E. SARAKINOS, S. SARKAR, G. SARTORELLI, M. SASSOWSKY, G. SAUVAGE, C. SCHAFER, V. SCHEGELSKY, D. SCHMITZ, P. SCHMITZ, M. SCHNEEGANS, N. SCHOLZ, H. SCHOPPER, D. J. SCHOTANUS, S. SHOTKIN, H. J. SCHREIBER, J. SHUKLA, R. SCHULTE, K. SCHULTZE, J. SCHWENKE, G. SCHWERING, I. SCOTT, R. SEHGAL, P. G. SEILER, J. C. SENS, L. SERVOLI, I. SHEER, S. SHEVCHENKO, X. R. SHI, E. SHUMILOV, V. SHOUTKO, D. SON, A. SOPCZAK, V. SOULIMOV, C. SPARTIOTIS, T. SPICKERMANN, P. SPILLANTINI, M. STEUER, D. P. STICKLAND, F. STICOZZI, H. STONE, K. STRAUCH, K. SUDHAKAR, G. SULTANOV, L. Z. SUN, G. F. SUSINNO, H. SUTER, J. D. SWAIN, A. A. SYED, X. W. TANG, L. TAYLOR, R. TIMELLINI, S. C. C., S. M. TING, O. TOKER, M. TONUTTI, S. C. TONWAR, J. TOTH, G. TROWITZSCH, A. TSAREGORODTSEV, T. TSIPOLITIS, C. TULLY, J. ULBRICHT, L. URBAN, U. UWER, E. VALENTE, R. T. VANDEWALLE, I. VETLITSKY, G. VIERTEL, P. VIKAS, U. VIKAS, M. VIVARGENT, H. VOGEL, H. VOGT, I. VOROBIEV, A. A. VOROBYOV, L. VUILLEUMIER, M. WADHWA, W. WALLRAFF, J. C. WANG, X. L. WANG, Y. F. WANG, Z. M. WANG, A. WEBER, J. WEBER, R. WEILL, C. WILLMOTT, F. WITTGENSTEIN, D. WRIGHT, S. X. WU, S. WYNHOFF, Z. Z. XU, B. Z. YANG, C. G. YANG, G. YANG, X. Y. YAO, C. H. YE, J. B. YE, Q. YE, S. C. YEH, J. M. YOU, N. YUNUS, M. YZERMAN, C. ZACCARDELLI, P. ZEMP, M. ZENG, Y. ZENG, D. H. ZHANG, Z. P. ZHANG, B. ZHOU, G. J. ZHOU, J. F. ZHOU, R. Y. ZHU, A. ZICHICHI, B. C. C., ALOISIO, ALBERTO, ALVIGGI, MARIAGRAZIA, CHIEFARI, GIOVANNI, MEROLA, LEONARDO, NAPOLITANO, MARCO, PATRICELLI, SERGIO, SCIACCA, CRISOSTOMO, Acciarri, M., Adam, A., Adriani, O., Aguilarbenitez, M., Ahlen, S., Alcaraz, J., Aloisio, Alberto, Alverson, G., Alviggi, Mariagrazia, Ambrosi, G., An, Q., Anderhub, H., Anderson, A. L., Andreev, V. P., Angelescu, T., Antonov, L., Antreasyan, D., Alkhazov, G., Arce, P., Arefiev, A., Azemoon, T., Aziz, T., P. V. K., Bagnaia, P., Bakken, J. A., Baksay, L., Ball, R. C., Banerjee, S., Banicz, K., Barillere, R., Barone, L., Baschirotto, A., Basile, M., Battiston, R., Bay, A., Becattini, F., Becker, U., Behner, F., Bencze, G. L., Berdugo, J., Berges, P., Bertucci, B., Betev, B. L., Biasini, M., Biland, A., Bilei, G. M., Bizzarri, R., Blaising, J. J., Bobbink, G. J., Bock, R., Bohm, A., Borgia, B., Boucham, A., Bourilkov, D., Bourquin, M., Boutigny, D., Bouwens, B., Brambilla, E., Branson, J. G., Brigljevic, V., Brock, I. C., Brooks, M., Bujak, A., Burger, J. D., Burger, W. J., Burgos, C., Busenitz, J., Buytenhuijs, A., Bykov, A., Cai, X. D., Capell, M., Romeo, G. C., Caria, M., Carlino, G., Cartacci, A. M., Casaus, J., Castello, R., Cavallo, N., Cerrada, M., Cesaroni, F., Chamizo, M., Chang, Y. H., Chaturvedi, U. K., Chemarin, M., Chen, A., Chen, C., Chen, G., Chen, G. M., Chen, H. F., Chen, H. S., Chen, M., Chiefari, Giovanni, Chien, C. Y., Choi, M. T., Chung, S., Cifarelli, L., Cindolo, F., Civinini, C., Clare, I., Clare, R., Coan, T. E., Cohn, H. O., Coignet, G., Colino, N., Costantini, S., Cotorobai, F., Delacruz, B., Cui, X. T., Cui, X. Y., Dai, T. S., Dalessandro, R., Deasmundis, R., Degre, A., Deiters, K., Denes, E., Denes, P., Denotaristefani, F., Dibitonto, D., Diemoz, M., Dimitrov, H. R., Dionisi, C., Dittmar, M., Djambazov, L., Dorne, I., Dova, M. T., Drago, E., Duchesneau, D., Duhem, F., Duinker, P., Duran, I., Dutta, S., Easo, S., Elmamouni, H., Engler, A., Eppling, F. J., Erne, F. C., Extermann, P., Fabbretti, R., Fabre, M., Falciano, S., Favara, A., Fay, J., Felcini, M., Fergusson, T., Fernandez, D., Fernandez, G., Ferroni, F., Fesefeldt, H., Fiandrini, E., Field, J. H., Filthaut, F., Fisher, P. H., Forconi, G., Fredj, L., Freudenreich, K., Gailloud, M., Galaktionov, Y., Gallo, E., Ganguli, S. N., Garciaabia, P., Gentile, S., Gerald, J., Gheordanescu, N., Giagu, S., Goldfarb, S., Goldstein, J., Gong, Z. F., Gonzalez, E., Gougas, A., Goujon, D., Gratta, G., Gruenewald, M. W., Gu, C., Guanziroli, M., Gupta, V. K., Gurtu, A., Gustafson, H. R., Gutay, L. J., Hasan, A., Hauschildt, D., J. T., He, Hebbeker, T., Hebert, M., Herve, A., Hilgers, K., Hofer, H., Hoorani, H., Hou, S. R., Hu, G., Ille, B., Ilyas, M. M., Innocente, V., Janssen, H., Jin, B. N., Jones, L. W., Dejong, P., Josamutuberria, I., Kasser, A., Khan, R. A., Kamyshkov, Y., Kapinos, P., Kapustinsky, J. S., Karyotakis, Y., Kaur, M., Khokhar, S., Kienzlefocacci, M. N., Kim, D., Kim, J. K., Kim, S. C., Kim, Y. G., Kinnison, W. W., Kirby, A., Kirkby, D., Kirsch, S., Kittel, W., Klimentov, A., Konig, A. C., Koffeman, E., Kornadt, O., Koutsenko, V., Koulbardis, A., Kraemer, R. W., Kramer, T., Krastev, V. R., Krenz, W., Kuijten, H., Kumar, K. S., Kunin, A., Deguevara, P. L., Landi, G., Lanske, D., Lanzano, S., Lebedev, A., Lecomte, P., Lecoq, P., Lecoultre, P., Lee, D. M., Lee, J. S., Lee, K. Y., Leedom, I., Leggett, C., Legoff, J. M., Leiste, R., Lenti, M., Leonardi, E., Levtchenko, P., Li, C., Lieb, E., Lin, W. T., Linde, F. L., Lindemann, B., Lista, L., Liu, Y., Lohmann, W., Longo, E., Lu, W., Y. S., Lu, Lubbers, J. M., Lubelsmeyer, K., Luci, C., Luckey, D., Ludovici, L., Luminari, L., Lustermann, W., W. G., Ma, Macdermott, M., Maity, M., Malgeri, L., Malik, R., Malinin, A., Mana, C., Mangla, S., Maolinbay, M., Marchesini, P., Marin, A., Martin, J. P., Marzano, F., G. G. G., Mazumdar, K., Mcbride, P., Mcmahon, T., Mcnally, D., Mele, S., Merk, M., Merola, Leonardo, Meschini, M., Metzger, W. J., Mi, Y., Mihul, A., Mills, G. B., Mir, Y., Mirabelli, G., Mnich, J., Moller, M., Monaco, V., Monteleoni, B., Morand, R., Morganti, S., Moulai, N. E., Mount, R., Muller, S., Nagy, E., Napolitano, Marco, Nessitedaldi, F., Newman, H., Niaz, M. A., Nippe, A., Nowak, H., Organtini, G., Pandoulas, D., Paoletti, S., Paolucci, P., Pascale, G., Passaleva, G., Patricelli, Sergio, Paul, T., Pauluzzi, M., Paus, C., Pauss, F., Pei, Y. J., Pensotti, S., Perretgallix, D., Pevsner, A., Piccolo, D., Pieri, M., Pinto, J. C., Piroue, P. A., Pistolesi, E., Plasil, F., Plyaskin, V., Pohl, M., Pojidaev, V., Postema, H., Produit, N., Qian, J. M., Qureshi, K. N., Raghavan, R., Rahalcallot, G., Rancoita, P. G., Rattaggi, M., Raven, G., Razis, P., Read, K., Redaelli, M., Ren, D., Ren, Z., Rescigno, M., Reucroft, S., Ricker, A., Rieman, S., Riemers, B. C., Riles, K., Rind, O., Rizvi, H. A., Ro, S., Robohm, A., Rodriguez, F. J., Roe, B. P., Rohner, M., Rohner, S., Romero, L., Rosierlees, S., Rosmalen, R., Rosselet, P., Vanrossum, W., Roth, S., Rubbia, A., Rubio, J. A., Rykaczewski, H., Salicio, J., Salicio, J. M., Sanchez, E., Sanders, G. S., Santocchia, A., Sarakinos, M. E., Sarkar, S., Sartorelli, G., Sassowsky, M., Sauvage, G., Schafer, C., Schegelsky, V., Schmitz, D., Schmitz, P., Schneegans, M., Scholz, N., Schopper, H., Schotanus, D. J., Shotkin, S., Schreiber, H. J., Shukla, J., Schulte, R., Schultze, K., Schwenke, J., Schwering, G., Sciacca, Crisostomo, Scott, I., Sehgal, R., Seiler, P. G., Sens, J. C., Servoli, L., Sheer, I., Shevchenko, S., Shi, X. R., Shumilov, E., Shoutko, V., Son, D., Sopczak, A., Soulimov, V., Spartiotis, C., Spickermann, T., Spillantini, P., Steuer, M., Stickland, D. P., Sticozzi, F., Stone, H., Strauch, K., Sudhakar, K., Sultanov, G., Sun, L. Z., Susinno, G. F., Suter, H., Swain, J. D., Syed, A. A., Tang, X. W., Taylor, L., Timellini, R., S. C. C., Ting, S. M., Toker, O., Tonutti, M., Tonwar, S. C., Toth, J., Trowitzsch, G., Tsaregorodtsev, A., Tsipolitis, T., Tully, C., Ulbricht, J., Urban, L., Uwer, U., Valente, E., Vandewalle, R. T., Vetlitsky, I., Viertel, G., Vikas, P., Vikas, U., Vivargent, M., Vogel, H., Vogt, H., Vorobiev, I., Vorobyov, A. A., Vuilleumier, L., Wadhwa, M., Wallraff, W., Wang, J. C., Wang, X. L., Wang, Y. F., Wang, Z. M., Weber, A., Weber, J., Weill, R., Willmott, C., Wittgenstein, F., Wright, D., S. X., Wu, Wynhoff, S., Z. Z., Xu, Yang, B. Z., Yang, C. G., Yang, G., Yao, X. Y., C. H., Ye, J. B., Ye, Ye, Q., Yeh, S. C., You, J. M., Yunus, N., Yzerman, M., Zaccardelli, C., Zemp, P., Zeng, M., Zeng, Y., Zhang, D. H., Zhang, Z. P., Zhou, B., Zhou, G. J., Zhou, J. F., Zhu, R. Y., Zichichi, A., and B. C. C.

Subjects
E+E-PHYSICS, CONSTRUCTION, LUND MONTE-CARLO, HADRON, ComputingMethodologies_DOCUMENTANDTEXTPROCESSING, DETECTOR, JET FRAGMENTATION
Abstract

The production of B* mesons in Z decays has been measured at LEP with the L3 detector. A sample of Z --> b ($) over bar b events was obtained by tagging muons in 1.6 million hadronic Z decays collected in 1991, 1992 and 1993. A signal with a peak value of E(y) = 46.3+/-1.9 (stat) MeV in the B rest frame energy spectrum was interpreted to come from the decay B* --> gamma B. The inclusive production ratio of B* mesons relative to B mesons was determined from a fit to the spectrum to be N-B*/(N-B* + N-B) = 0.76+/-0.08+/-0.06, where the first error is statistical and the second is systematic.

Published
1995

26. A measurement of polarization at LEP

Author

M. ACCIARRI, A. ADAMS, O. ADRIANI, M. AGUILARBENITEZ, S. AHLEN, J. ALCARAZ, G. ALVERSON, G. AMBROSI, Q. AN, H. ANDERHUB, A. L. ANDERSON, V. P. ANDREEV, T. ANGELESCU, L. ANTONOV, D. ANTREASYAN, G. ALKHAZOV, P. ARCE, A. AREFIEV, T. AZEMOON, T. AZIZ, P. V. K., P. BAGNAIA, J. A. BAKKEN, L. BAKSAY, R. C. BALL, S. BANERJEE, K. BANICZ, R. BARILLERE, L. BARONE, A. BASCHIROTTO, M. BASILE, R. BATTISTON, A. BAY, F. BECATTINI, U. BECKER, F. BEHNER, G. L. BENCZE, J. BERDUGO, P. BERGES, B. BERTUCCI, B. L. BETEV, M. BIASINI, A. BILAND, G. M. BILEI, R. BIZZARRI, J. J. BLAISING, G. J. BOBBINK, R. BOCK, A. BOHM, B. BORGIA, A. BOUCHAM, D. BOURILKOV, M. BOURQUIN, D. BOUTIGNY, B. BOUWENS, E. BRAMBILLA, J. G. BRANSON, V. BRIGLJEVIC, I. C. BROCK, M. BROOKS, A. BUJAK, J. D. BURGER, W. J. BURGER, C. BURGOS, J. BUSENITZ, A. BUYTENHUIJS, A. BYKOV, X. D. CAI, M. CAPELL, G. C. ROMEO, M. CARIA, G. CARLINO, A. M. CARTACCI, J. CASAUS, R. CASTELLO, N. CAVALLO, M. CERRADA, F. CESARONI, M. CHAMIZO, Y. H. CHANG, U. K. CHATURVEDI, M. CHEMARIN, A. CHEN, C. CHEN, G. CHEN, G. M. CHEN, H. F. CHEN, H. S. CHEN, M. CHEN, C. Y. CHIEN, M. T. CHOI, S. CHUNG, L. CIFARELLI, F. CINDOLO, C. CIVININI, I. CLARE, R. CLARE, T. E. COAN, H. O. COHN, G. COIGNET, N. COLINO, S. COSTANTINI, F. COTOROBAI, B. DELACRUZ, X. T. CUI, X. Y. CUI, T. S. DAI, R. DALESSANDRO, R. DEASMUNDIS, A. DEGRE, K. DEITERS, E. DENES, P. DENES, F. DENOTARISTEFANI, D. DIBITONTO, M. DIEMOZ, H. R. DIMITROV, C. DIONISI, M. DITTMAR, L. DJAMBOZOV, I. DORNE, M. T. DOVA, E. DRAGO, D. DUCHESNEAU, F. DUHEM, P. DUINKER, I. DURAN, S. DUTTA, S. EASO, H. ELMAMOUNI, A. ENGLER, F. J. EPPLING, F. C. ERNE, P. EXTERMANN, R. FABBRETTI, M. FABRE, S. FALCIANO, A. FAVARA, J. FAY, M. FELCINI, T. FERGUSON, D. FERNANDEZ, G. FERNANDEZ, F. FERRONI, H. FESEFELDT, E. FIANDRINI, J. H. FIELD, F. FILTHAUT, P. H. FISHER, G. FORCONI, L. FREDJ, K. FREUDENREICH, M. GAILLOUD, Y. GALAKTIONOV, E. GALLO, S. N. GANGULI, P. GARCIAABIA, S. GENTILE, J. GERALD, N. GHEORDANESCU, S. GIAGU, S. 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Subjects
Nuclear and High Energy Physics, production polar angle, FERMION PAIR PRODUCTION, Electron–positron annihilation, QED CORRECTIONS, Electron, 01 natural sciences, 7. Clean energy, PARAMETERS, Nuclear physics, Z-RESONANCE, MONTE-CARLO, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], 010306 general physics, GeneralLiterature_REFERENCE(e.g.,dictionaries,encyclopedias,glossaries), Pseudovector, Ciencias Exactas, Physics, Neutral current, CONSTRUCTION, 010308 nuclear & particles physics, TAU-POLARIZATION, polarization of τ-leptons, Electroweak interaction, Física, axial-vector, Weinberg angle, FERMION-PAIR PRODUCTION, HIGH-ENERGY LEPTON, Polarization (waves), Z-PEAK, LEPTONS, Angular dependence, Atomic physics, DECAY, Particle Physics - Experiment
Abstract

With a data sample of 86 000 Z → τ+τ−(γ) events collected in 1990 through 1993 we have measured the polarization of τ-leptons as a function of the production polar angle using the following 1-prong τ decay modes: r- ~ e-~evT, r- --+/.t-Vuv~, r- ---+ 7r-(K-)v~, r- ~ p-v, and r- ---+ a~'v, We obtain for the ratio of vector to axial-vector weak neutral couplings for electrons gVe/gAe=0.0791±0.0099(stat)±0.0025 (syst) and taus gVτ/gAτ=0.0752±0.0063 (stat)±0.0045 (syst) consistent with the hypothesis of e - τ universality. Assuming universality of the e - τ neutral current we determine the effective electroweak mixing angle to be sin2 θeffw = 0.2309 ± 0.0016.., Facultad de Ciencias Exactas

Published
1994
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27. Measurement of Inclusive Production of Neutral Hadrons From Z-decays

Author

M. ACCIARRI, A. ADAM, O. ADRIANI, M. AGUILARBENITEZ, S. AHLEN, J. ALCARAZ, G. ALVERSON, G. AMBROSI, Q. AN, H. ANDERHUB, A. L. ANDERSON, V. P. ANDREEV, T. ANGELESCU, L. ANTONOV, D. ANTREASYAN, G. ALKHAZOV, P. ARCE, A. AREFIEV, T. AZEMOON, T. AZIZ, P. V. K., P. BAGNAIA, J. A. BAKKEN, L. BAKSAY, R. C. BALL, S. BANERJEE, K. BANICZ, J. BAO, R. BARILLERE, L. BARONE, A. BASCHIROTTO, R. BATTISTON, A. BAY, F. BECATTINI, U. BECKER, F. BEHNER, G. L. BENCZE, J. BERDUGO, P. BERGES, B. BERTUCCI, B. L. BETEV, M. BIASINI, A. BILAND, G. M. BILEI, R. BIZZARRI, J. J. BLAISING, G. J. BOBBINK, R. BOCK, A. BOHM, B. BORGIA, D. BOURILKOV, M. BOURQUIN, D. BOUTIGNY, B. BOUWENS, E. BRAMBILLA, J. G. BRANSON, V. BRIGLJEVIC, I. C. BROCK, M. BROOKS, A. BUJAK, J. D. BURGER, W. J. BURGER, C. BURGOS, J. BUSENITZ, A. BUYTENHUIJS, A. BYKOV, X. D. CAI, M. CAPELL, M. CARIA, G. CARLINO, A. M. CARTACCI, J. CASAUS, R. CASTELLO, N. CAVALLO, M. CERRADA, F. CESARONI, M. CHAMIZO, Y. H. CHANG, U. K. CHATURVEDI, M. CHEMARIN, A. CHEN, C. CHEN, G. CHEN, G. M. CHEN, H. F. CHEN, H. S. CHEN, M. CHEN, C. Y. CHIEN, M. T. CHOI, S. CHUNG, C. CIVININI, J. CLARE, R. CLARE, T. E. COAN, H. O. COHN, G. COIGNET, N. COLINO, A. CONTIN, S. COSTANTINI, F. COTOROBAI, B. DELACRUZ, X. T. CUI, X. Y. CUI, T. S. DAI, R. DALESSANDRO, R. DEASMUNDIS, A. DEGRE, K. DEITERS, E. DENES, P. DENES, F. DENOTARISTEFANI, D. DIBITONTO, M. DIEMOZ, H. R. DIMITROV, C. DIONISI, M. DITTMAR, L. DJAMBAZOV, M. T. DOVA, E. DRAGO, D. DUCHESNEAU, P. DUINKER, I. DURAN, S. EASO, H. ELMAMOUNI, A. ENGLER, F. J. EPPLING, F. C. ERNE, P. EXTERMANN, R. FABBRETTI, M. FABRE, S. FALCIANO, S. J. FAN, A. FAVARA, J. FAY, M. FELCINI, T. FERGUSON, D. FERNANDEZ, G. FERNANDEZ, F. FERRONI, H. FESEFELDT, E. FANDRINI, J. Y. H., F. FILTHAUT, P. H. FISHER, G. FORCONI, L. FREDJ, K. FREUDENREICH, W. FRIEBEL, M. FUKUSHIMA, M. GAILLOUD, Y. GALAKTIONOV, E. GALLO, S. N. GANGULI, P. GARCIAABIA, S. GENTILE, N. GHEORDANESCU, S. GIAGU, S. GOLDFARB, Z. F. GONG, D. E. GONZALEZ, A. GOUGAS, D. GOUJON, G. GRATTA, M. GRUENEWALD, C. GU, M. GUANZIROLI, J. K. GUO, V. K. GUPTA, A. GURTU, H. R. GUSTAFSON, L. J. GUTAY, K. HANGARTER, A. HASAN, D. HAUSCHILDT, C. F. HE, J. T. HE, T. HEBBEKER, M. HEBERT, A. HERVE, K. HILGERS, H. HOFER, H. HOORANI, S. R. HOU, G. HU, G. Q. HU, B. ILLE, M. M. ILYAS, V. INNOCENTE, H. JANSSEN, B. N. JIN, L. W. JONES, I. JOSAMUTUBERRIA, A. KASSER, R. A. KHAN, Y. KAMYSHKOV, P. KAPINOS, J. S. KAPUSTINSKY, Y. KARYOTAKIS, M. KAUR, S. KHOKHAR, M. N. KIENZLEFOCACCI, J. K. KIM, S. C. KIM, Y. G. KIM, W. W. KINNISON, A. KIRKBY, D. KIRKBY, S. KIRSCH, W. KITTEL, A. KLIMENTOV, A. C. KONIG, E. KOFFEMAN, O. KORNADT, V. KOUTSENKO, A. KOULBARDIS, R. W. KRAEMER, T. KRAMER, V. R. KRASTEV, W. KRENZ, H. KUIJTEN, K. S. KUMAR, A. KUNIN, P. L. DEGUEVARA, G. LANDI, D. LANSKE, S. LANZANO, A. LEBEDEV, P. LEBRUN, P. LECOMTE, P. LECOQ, P. LECOULTRE, D. M. LEE, J. S. LEE, K. Y. LEE, I. LEEDOM, C. LEGGETT, J. M. LEGOFF, R. LEISTE, M. LENTI, E. LEONARDI, P. LEVTCHENKO, C. LI, H. T. LI, P. J. LI, J. Y. LIAO, W. T. LIN, Z. Y. LIN, F. L. LINDE, B. LINDEMANN, L. LISTA, Y. LIU, W. LOHMANN, E. LONGO, W. LU, Y. S. LU, J. M. LUBBERS, K. LUBELSMEYER, C. LUCI, D. LUCKEY, L. LUDOVICI, L. LUMINARI, W. LUSTERMANN, J. M. MA, W. G. MA, M. MACDERMOTT, L. MALGERI, R. MALIK, A. MALININ, C. MANA, M. MAOLINBAY, P. MARCHESINI, F. MARION, A. MARIN, J. P. MARTIN, F. MARZANO, G. G. G., K. MAZUMDAR, P. MCBRIDE, T. MCMAHON, D. MCNALLY, M. MERK, M. MESCHINI, W. J. METZGER, Y. MI, A. MIHUL, G. B. MILLS, Y. MIR, G. MIRABELLI, M. MNICH, J. MNICH, M. MOLLER, B. MONTELEONI, R. MORAND, S. MORGANTI, N. E. MOULAI, R. MOUNT, S. MULELR, E. NAGY, F. NESSITEDALDI, H. NEWMAN, M. A. NIAZ, A. NIPPE, H. NOWAK, G. ORGANTINI, D. PANDOULAS, S. PAOLETTI, P. PAOLUCCI, G. PASCALE, G. PASSALEVA, T. PAUL, M. PAULUZZI, C. PAUS, F. PAUSS, Y. J. PEI, S. PENSOTTI, D. PERRETGALLIX, J. PERRIER, A. PEVSNER, D. PICCOLO, M. PIERI, J. C. PINTO, P. A. PIROUE, F. PLASIL, V. PLYASKIN, M. POHL, V. POJIDAEV, H. POSTEMA, Z. D. QI, J. M. QIAN, K. N. QURESHI, R. RAGHAVAN, G. RAHALCALLOT, P. G. RANCOITA, M. RATTAGGI, G. RAVEN, P. RAZIS, K. READ, M. REDAELLI, D. REN, Z. REN, M. RESCIGNO, S. REUCROFT, A. RICKER, S. RIEMANN, B. C. RIEMERS, K. RILES, O. RIND, H. A. RIZVI, S. RO, A. ROBOHM, F. J. RODRIGUEZ, B. P. ROE, M. ROHNER, S. ROHNER, L. ROMERO, S. ROSIERLEES, R. ROSMALEN, P. ROSSELET, W. VANROSSUM, S. ROTH, A. RUBBIA, J. A. RUBIO, H. RYKACZEWSKI, M. SACHWITZ, J. SALICIO, J. M. SALICIO, E. SANCHYEZ, G. S. SANDERS, A. SANTOCCHIA, M. S. SARAKINOS, G. SARTORELLI, M. SASSOWSKY, G. SAUVAGE, C. SCHAFER, V. SCHEGELSKY, D. SCHMITZ, P. SCHMITZ, M. SCHNEEGANS, N. SCHNOLZ, Y. SCHOPPER, D. J. SCHOTANUS, S. SHOTKIN, H. J. SCHREIBER, J. SHUKLA, R. SCHULTE, K. SCHULTZE, J. SCHWENKE, G. SCHWERING, I. SCOTT, R. SEHGAL, P. G. SEILER, J. C. SENS, L. SERVOLI, I. SHEER, D. Z. SHEN, S. SHEVCHENKO, X. R. SHI, E. SHUMILOV, V. SHOUTKO, D. SOIN, A. SOPCZAK, V. SOULIMOV, C. SPARTIOTIS, T. SPICKERMANN, P. SPILLANTINI, R. STAROSTA, M. N. STEUER, D. P. STICKLAND, F. STICOZZI, H. STONE, K. STRAUCH, K. SUDHAKAR, G. SULTANOV, L. Z. SUN, G. F. SUSINNO, H. SUTER, J. D. SWAIN, A. A. SYED, X. W. TANG, L. TAYLOR, S. C. C., S. M. TING, O. TOKER, M. TONUTTI, S. C. TONWAR, J. TOTH, A. TSAREGORODTSEV, G. TSIPOLITIS, C. TULLY, K. L. TUNG, T. TUUVA, J. ULBGRICHT, L. URBAN, U. UWER, E. VALENTE, R. T. VANDEWALLE, I. VETLITSKY, G. VIERTEL, P. VIKAS, U. VIKAS, M. VIVARGENT, H. VOGEL, H. VOGT, I. VOROBIEV, A. A. VOROBYOV, L. VUILLEUMIER, M. WADHWA, W. WALLRAFF, J. C. WANG, C. R. WANG, X. L. WANG, Y. F. WANG, Z. M. WANG, A. WEBER, J. WEBER, R. WEILL, J. WENNINGER, M. WHITE, C. WILLMOTT, F. WITTGENSTEIN, D. WRIGHT, S. X. WU, S. WYNHOFF, B. WYSLOUCH, Y. Y. XIE, J. G. XU, Z. Z. XU, Z. L. XUE, D. S. YAN, B. Z. YANG, C. G. YANG, G. YANG, C. H. YE, J. B. YE, Q. YE, S. C. YEH, Z. W. YIN, J. M. YOU, N. YUNUS, M. YZERMAN, C. ZACCARDELLI, P. ZEMP, M. ZENG, Y. ZENG, D. H. ZHANG, Z. P. ZHANG, B. ZHOU, G. J. ZHOU, J. F. ZHOU, R. Y. ZHU, A. ZICHICHI, B. C. C., ALOISIO, ALBERTO, ALVIGGI, MARIAGRAZIA, CHIEFARI, GIOVANNI, MEROLA, LEONARDO, NAPOLITANO, MARCO, PATRICELLI, SERGIO, SCIACCA, CRISOSTOMO, Acciarri, M., Adam, A., Adriani, O., Aguilarbenitez, M., Ahlen, S., Alcaraz, J., Aloisio, Alberto, Alverson, G., Alviggi, Mariagrazia, Ambrosi, G., An, Q., Anderhub, H., Anderson, A. L., Andreev, V. P., Angelescu, T., Antonov, L., Antreasyan, D., Alkhazov, G., Arce, P., Arefiev, A., Azemoon, T., Aziz, T., P. V. K., Bagnaia, P., Bakken, J. A., Baksay, L., Ball, R. C., Banerjee, S., Banicz, K., Bao, J., Barillere, R., Barone, L., Baschirotto, A., Battiston, R., Bay, A., Becattini, F., Becker, U., Behner, F., Bencze, G. L., Berdugo, J., Berges, P., Bertucci, B., Betev, B. L., Biasini, M., Biland, A., Bilei, G. M., Bizzarri, R., Blaising, J. J., Bobbink, G. J., Bock, R., Bohm, A., Borgia, B., Bourilkov, D., Bourquin, M., Boutigny, D., Bouwens, B., Brambilla, E., Branson, J. G., Brigljevic, V., Brock, I. C., Brooks, M., Bujak, A., Burger, J. D., Burger, W. J., Burgos, C., Busenitz, J., Buytenhuijs, A., Bykov, A., Cai, X. D., Capell, M., Caria, M., Carlino, G., Cartacci, A. M., Casaus, J., Castello, R., Cavallo, N., Cerrada, M., Cesaroni, F., Chamizo, M., Chang, Y. H., Chaturvedi, U. K., Chemarin, M., Chen, A., Chen, C., Chen, G., Chen, G. M., Chen, H. F., Chen, H. S., Chen, M., Chiefari, Giovanni, Chien, C. Y., Choi, M. T., Chung, S., Civinini, C., Clare, J., Clare, R., Coan, T. E., Cohn, H. O., Coignet, G., Colino, N., Contin, A., Costantini, S., Cotorobai, F., Delacruz, B., Cui, X. T., Cui, X. Y., Dai, T. S., Dalessandro, R., Deasmundis, R., Degre, A., Deiters, K., Denes, E., Denes, P., Denotaristefani, F., Dibitonto, D., Diemoz, M., Dimitrov, H. R., Dionisi, C., Dittmar, M., Djambazov, L., Dova, M. T., Drago, E., Duchesneau, D., Duinker, P., Duran, I., Easo, S., Elmamouni, H., Engler, A., Eppling, F. J., Erne, F. C., Extermann, P., Fabbretti, R., Fabre, M., Falciano, S., Fan, S. J., Favara, A., Fay, J., Felcini, M., Ferguson, T., Fernandez, D., Fernandez, G., Ferroni, F., Fesefeldt, H., Fandrini, E., J. Y. H., Filthaut, F., Fisher, P. H., Forconi, G., Fredj, L., Freudenreich, K., Friebel, W., Fukushima, M., Gailloud, M., Galaktionov, Y., Gallo, E., Ganguli, S. N., Garciaabia, P., Gentile, S., Gheordanescu, N., Giagu, S., Goldfarb, S., Gong, Z. F., Gonzalez, D. E., Gougas, A., Goujon, D., Gratta, G., Gruenewald, M., Gu, C., Guanziroli, M., Guo, J. K., Gupta, V. K., Gurtu, A., Gustafson, H. R., Gutay, L. J., Hangarter, K., Hasan, A., Hauschildt, D., C. F., He, J. T., He, Hebbeker, T., Hebert, M., Herve, A., Hilgers, K., Hofer, H., Hoorani, H., Hou, S. R., Hu, G., G. Q., Hu, Ille, B., Ilyas, M. M., Innocente, V., Janssen, H., Jin, B. N., Jones, L. W., Josamutuberria, I., Kasser, A., Khan, R. A., Kamyshkov, Y., Kapinos, P., Kapustinsky, J. S., Karyotakis, Y., Kaur, M., Khokhar, S., Kienzlefocacci, M. N., Kim, J. K., Kim, S. C., Kim, Y. G., Kinnison, W. W., Kirkby, A., Kirkby, D., Kirsch, S., Kittel, W., Klimentov, A., Konig, A. C., Koffeman, E., Kornadt, O., Koutsenko, V., Koulbardis, A., Kraemer, R. W., Kramer, T., Krastev, V. R., Krenz, W., Kuijten, H., Kumar, K. S., Kunin, A., Deguevara, P. L., Landi, G., Lanske, D., Lanzano, S., Lebedev, A., Lebrun, P., Lecomte, P., Lecoq, P., Lecoultre, P., Lee, D. M., Lee, J. S., Lee, K. Y., Leedom, I., Leggett, C., Legoff, J. M., Leiste, R., Lenti, M., Leonardi, E., Levtchenko, P., Li, C., H. T., Li, P. J., Li, Liao, J. Y., Lin, W. T., Lin, Z. Y., Linde, F. L., Lindemann, B., Lista, L., Liu, Y., Lohmann, W., Longo, E., Lu, W., Y. S., Lu, Lubbers, J. M., Lubelsmeyer, K., Luci, C., Luckey, D., Ludovici, L., Luminari, L., Lustermann, W., J. M., Ma, W. G., Ma, Macdermott, M., Malgeri, L., Malik, R., Malinin, A., Mana, C., Maolinbay, M., Marchesini, P., Marion, F., Marin, A., Martin, J. P., Marzano, F., G. G. G., Mazumdar, K., Mcbride, P., Mcmahon, T., Mcnally, D., Merk, M., Merola, Leonardo, Meschini, M., Metzger, W. J., Mi, Y., Mihul, A., Mills, G. B., Mir, Y., Mirabelli, G., Mnich, M., Mnich, J., Moller, M., Monteleoni, B., Morand, R., Morganti, S., Moulai, N. E., Mount, R., Mulelr, S., Nagy, E., Napolitano, Marco, Nessitedaldi, F., Newman, H., Niaz, M. A., Nippe, A., Nowak, H., Organtini, G., Pandoulas, D., Paoletti, S., Paolucci, P., Pascale, G., Passaleva, G., Patricelli, Sergio, Paul, T., Pauluzzi, M., Paus, C., Pauss, F., Pei, Y. J., Pensotti, S., Perretgallix, D., Perrier, J., Pevsner, A., Piccolo, D., Pieri, M., Pinto, J. C., Piroue, P. A., Plasil, F., Plyaskin, V., Pohl, M., Pojidaev, V., Postema, H., Z. D., Qi, Qian, J. M., Qureshi, K. N., Raghavan, R., Rahalcallot, G., Rancoita, P. G., Rattaggi, M., Raven, G., Razis, P., Read, K., Redaelli, M., Ren, D., Ren, Z., Rescigno, M., Reucroft, S., Ricker, A., Riemann, S., Riemers, B. C., Riles, K., Rind, O., Rizvi, H. A., Ro, S., Robohm, A., Rodriguez, F. J., Roe, B. P., Rohner, M., Rohner, S., Romero, L., Rosierlees, S., Rosmalen, R., Rosselet, P., Vanrossum, W., Roth, S., Rubbia, A., Rubio, J. A., Rykaczewski, H., Sachwitz, M., Salicio, J., Salicio, J. M., Sanchyez, E., Sanders, G. S., Santocchia, A., Sarakinos, M. S., Sartorelli, G., Sassowsky, M., Sauvage, G., Schafer, C., Schegelsky, V., Schmitz, D., Schmitz, P., Schneegans, M., Schnolz, N., Schopper, Y., Schotanus, D. J., Shotkin, S., Schreiber, H. J., Shukla, J., Schulte, R., Schultze, K., Schwenke, J., Schwering, G., Sciacca, Crisostomo, Scott, I., Sehgal, R., Seiler, P. G., Sens, J. C., Servoli, L., Sheer, I., Shen, D. Z., Shevchenko, S., Shi, X. R., Shumilov, E., Shoutko, V., Soin, D., Sopczak, A., Soulimov, V., Spartiotis, C., Spickermann, T., Spillantini, P., Starosta, R., Steuer, M. N., Stickland, D. P., Sticozzi, F., Stone, H., Strauch, K., Sudhakar, K., Sultanov, G., Sun, L. Z., Susinno, G. F., Suter, H., Swain, J. D., Syed, A. A., Tang, X. W., Taylor, L., S. C. C., Ting, S. M., Toker, O., Tonutti, M., Tonwar, S. C., Toth, J., Tsaregorodtsev, A., Tsipolitis, G., Tully, C., Tung, K. L., Tuuva, T., Ulbgricht, J., Urban, L., Uwer, U., Valente, E., Vandewalle, R. T., Vetlitsky, I., Viertel, G., Vikas, P., Vikas, U., Vivargent, M., Vogel, H., Vogt, H., Vorobiev, I., Vorobyov, A. A., Vuilleumier, L., Wadhwa, M., Wallraff, W., Wang, J. C., Wang, C. R., Wang, X. L., Wang, Y. F., Wang, Z. M., Weber, A., Weber, J., Weill, R., Wenninger, J., White, M., Willmott, C., Wittgenstein, F., Wright, D., S. X., Wu, Wynhoff, S., Wyslouch, B., Xie, Y. Y., J. G., Xu, Z. Z., Xu, Xue, Z. L., Yan, D. S., Yang, B. Z., Yang, C. G., Yang, G., C. H., Ye, J. B., Ye, Ye, Q., Yeh, S. C., Yin, Z. W., You, J. M., Yunus, N., Yzerman, M., Zaccardelli, C., Zemp, P., Zeng, M., Zeng, Y., Zhang, D. H., Zhang, Z. P., Zhou, B., Zhou, G. J., Zhou, J. F., Zhu, R. Y., Zichichi, A., B. C. C., Laboratoire d'Annecy de Physique des Particules (LAPP), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), Institut de Physique Nucléaire de Lyon (IPNL), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), CMS, Institut de Physique des 2 Infinis de Lyon (IP2I Lyon), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS), L3, and L3 (IHEF, IoP, FNWI)

Subjects
Nuclear and High Energy Physics, Particle physics, LUND MONTE-CARLO, Electron–positron annihilation, Hadron, MESON PRODUCTION, Elementary particle, Parton, 7. Clean energy, 01 natural sciences, JET FRAGMENTATION, Nuclear physics, Momentum, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], PERTURBATIVE QCD, SPECTRA, 010306 general physics, Parton shower, Nuclear Experiment, GeneralLiterature_REFERENCE(e.g.,dictionaries,encyclopedias,glossaries), Ciencias Exactas, L3 EXPERIMENT, Quantum chromodynamics, Physics, 010308 nuclear & particles physics, High Energy Physics::Phenomenology, PHOTON PRODUCTION, Física, ETA-PRODUCTION, SOFT GLUONS, Mass spectrum, High Energy Physics::Experiment, E+ E ANNIHILATION, Particle Physics - Experiment
Abstract

We present a study of the inclusive production of 7r °, r I, K ° and A based on 929,000 hadronic Z decays recorded with the L3 detector at LEP. The measured inclusive momentum distributions have been compared with predictions from parton shower models as well as an analytical Quantum Chromodynamics calculation. Comparing to low energy e+e - data, we find that QCD describes the energy evolution of the hadron spectrum., Facultad de Ciencias Exactas

Published
1994
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28. Measurement of Eta(C) Production in Untagged 2-Photon Collisions at Lep

Author

O. ADRIANI, M. AGUILARBENITZ, S. AHLEN, J. ALCARAZ, G. ALVERSON, G. AMBROSI, Q. AN, H. ANDERHUB, A. L. ANDERSON, V. P. ANDREEV, T. ANGELESCU, L. ANTONOV, D. ANTREASYAN, P. ARCE, A. AREFIEV, A. ATAMANCHUK, T. AZEMOON, T. AZIZ, P. V. K., P. BAGNAIA, J. A. BAKKEN, R. C. BALL, S. BANERJEE, J. BAO, R. BARILLERE, L. BARONE, A. BASCHIROTTO, R. BATTISTON, A. BAY, F. BECATTINI, J. BECHTLUFT, R. BECKER, U. BECKER, F. BEHNER, J. BEHRENS, G. L. BENCZE, J. BERDUGO, P. BERGES, B. BERTUCCI, B. L. BETEV, M. BIASINI, A. BILAND, G. M. BILEI, R. BIZZARRI, J. J. BLAISING, G. J. BOBBINK, R. BOCK, A. BOHM, B. BORGIA, M. BOSETTI, D. BOURILKOV, M. BOURQUIN, D. BOUTIGNY, B. BOUWENS, E. BRAMBILLA, J. G. BRANSON, I. C. BROCK, M. BROOKS, A. BUJAK, J. D. BURGER, W. J. BURGER, J. BUSENITZ, A. BUYTENHUIJS, X. D. CAI, M. CAPELL, M. CARIA, G. CARLINO, A. M. CARTACCI, R. CASTELLO, M. CERRADA, F. CESARONI, Y. H. CHANG, U. K. CHATURVEDI, M. CHEMARIN, A. CHEN, C. CHEN, G. CHEN, G. M. CHEN, H. F. CHEN, H. S. CHEN, M. CHEN, W. Y. CHEN, C. Y. CHIEN, M. T. CHOI, S. CHUNG, C. CIVININI, I. CLARE, R. CLARE, T. E. COAN, H. O. COHN, G. COIGNET, N. COLINO, A. CONTIN, S. COSTANTINI, F. COTOROBAI, X. T. CUI, X. Y. CUI, T. S. DAI, R. DALESSANDRO, R. DEASMUNDIS, A. DEGRE, K. DEITERS, E. DENES, P. DENES, F. DENOTARISTEFANI, M. DHINA, D. DIBITONTO, M. DIEMOZ, H. R. DIMITROV, C. DIONISI, M. DITTMAR, L. DJAMBAZOV, M. T. DOVA, E. DRAGO, D. DUCHESNEAU, P. DUINKER, I. DURAN, S. EASO, H. ELMAMOUNI, A. ENGLER, F. J. EPPLING, F. C. ERNE, P. EXTERMANN, R. FABBRETTI, M. FABRE, S. FALCIANO, S. J. FAN, O. FACKLER, J. FAY, M. FELCINI, T. FERGUSON, D. FERNANDEZ, G. FERNANDEZ, F. FERRONI, H. FESEFELDT, E. FIANDRINI, J. H. FIELD, F. FILTHAUT, P. H. FISHER, G. FORCONI, L. FREDJ, K. FREUDENREICH, W. FRIEBEL, M. FUKUSHIMA, M. GAILLOUD, Y. GALAKTIONOV, E. GALLO, S. N. GANGULI, P. GARCIAABIA, D. GELE, S. GENTILE, N. GHEORDANESCU, S. GIAGU, S. GOLDFARB, Z. F. GONG, E. GONZALEZ, A. GOUGAS, D. GOUJON, G. GRATTA, M. GRUENEWALD, C. GU, M. GUANZIROLI, J. K. GUO, V. K. GUPTA, A. GURTU, H. R. GUSTAFSON, L. J. GUTAY, K. HANGARTER, B. HARTMANN, A. HASAN, D. HAUSCHILDT, C. F. HE, J. T. HE, T. HEBBEKER, M. HEBERT, A. HERVE, K. HILGERS, H. HOFER, H. HOORANI, G. HU, G. Q. HU, B. ILLE, M. M. ILYAS, V. INNOCENTE, H. JANSSEN, S. JEZEQUEL, B. N. JIN, L. W. JONES, I. JOSAMUTUBERRIA, A. KASSER, R. A. KHAN, Y. KAMYSHKOV, P. KAPINOS, J. S. KAPUSTINSKY, Y. KARYOTAKIS, M. KAUR, S. KHOKHAR, M. N. KIENZLEFOCACCI, J. K. KIM, S. C. KIM, Y. G. KIM, W. W. KINNISON, A. KIRKBY, D. KIRKBY, S. KIRSCH, W. KITTEL, A. KLIMENTOV, R. KLOCKNER, A. C. KONIG, E. KOFFEMAN, O. KORNADT, V. KOUTSENKO, A. KOULBARDIS, R. W. KRAEMER, T. KRAMER, V. R. KRASTEV, W. KRENZ, A. KRIVSHICH, H. KUIJTEN, K. S. KUMAR, A. KUNIN, G. LANDI, D. LANSKE, S. LANZANO, A. LEBEDEV, P. LEBRUN, P. LECOMTE, P. LECOQ, P. LECOULTRE, D. M. LEE, J. S. LEE, K. Y. LEE, I. LEEDOM, C. LEGGETT, J. M. LEGOFF, R. LEISTE, M. LENTI, E. LEONARDI, C. LI, H. T. LI, P. J. LI, J. Y. LIAO, W. T. LIN, Z. Y. LIN, F. L. LINDE, B. LINDEMANN, L. LISTA, Y. LIU, W. LOHMANN, E. LONGO, Y. S. LU, J. M. LUBBERS, K. LUBELSMEYER, C. LUCI, D. LUCKEY, L. LUDOVICI, L. LUMINARI, W. LUSTERMANN, J. M. MA, W. G. MA, M. MACDERMOTT, R. MALIK, A. MALININ, C. MANA, M. MAOLINBAY, P. MARCHESINI, F. MARION, A. MARIN, J. P. MARTIN, L. MARTINEZLASO, F. MARZANO, G. G. G., K. MAZUMDAR, P. MCBRIDE, T. MCMAHON, D. MCNALLY, M. MERK, M. MESCHINI, W. J. METZGER, Y. MI, A. MIHUL, G. B. MILLS, Y. MIR, G. MIRABELLI, J. MNICH, M. MOLLER, B. MONTELEONI, R. MORAND, S. MORGANTI, N. E. MOULAI, R. MOUNT, S. MULLER, A. NADTOCHY, E. NAGY, F. NESSITEDALDI, H. NEWMAN, C. NEYER, M. A. NIAZ, A. NIPPE, H. NOWAK, G. ORGANTINI, D. PANDOULAS, S. PAOLETTI, P. PAOLUCCI, G. PASCALE, G. PASSALEVA, T. PAUL, M. PAULUZZI, C. PAUS, F. PAUSS, Y. J. PEI, S. PENSOTTI, D. PERRETGALLIX, J. PERRIER, A. PEVSNER, D. PICCOLO, M. PIERI, P. A. PIROUE, F. PLASIL, V. PLYASKIN, M. POHL, V. POJIDAEV, H. POSTEMA, Z. D. QI, J. M. QIAN, K. N. QURESHI, R. RAGHAVAN, G. RAHALCALLOT, P. G. RANCOITA, M. RATTAGGI, G. RAVEN, P. RAZIS, K. READ, D. REN, Z. REN, M. RESCIGNO, S. REUCROFT, A. RICKER, S. RIEMANN, B. C. RIEMERS, K. RILES, O. RIND, H. A. RIZVI, S. RO, F. J. RODRIGUEZ, B. P. ROE, M. ROHNER, L. ROMERO, S. ROSIERLEES, R. ROSMALEN, P. ROSSELET, W. VANROSSUM, S. ROTH, A. RUBBIA, J. A. RUBIO, H. RYKACZEWSKI, M. SACHWITZ, J. SALICIO, J. M. SALICIO, G. S. SANDERS, A. SANTOCCHIA, M. S. SARAKINOS, G. SARTORELLI, M. SASSOWSKY, G. SAUVAGE, V. SCHEGELSKY, D. SCHMITZ, P. SCHMITZ, M. SCHNEEGANS, H. SCHOPPER, D. J. SCHOTANUS, S. SHOTKIN, H. J. SCHREIBER, J. SHUKLA, R. SCHULTE, S. SCHULTE, K. SCHULTZE, J. SCHWENKE, G. SCHWERING, I. SCOTT, R. SEHGAL, P. G. SEILER, J. C. SENS, L. SERVOLI, I. SHEER, D. Z. SHEN, S. SHEVCHENKO, X. R. SHI, E. SHUMILOV, V. SHOUTKO, D. SON, A. SOPCZAK, V. SOULIMOV, C. SPARTIOTIS, T. SPICKERMANN, P. SPILLANTINI, R. STAROSTA, M. STEUER, D. P. STICKLAND, F. STICOZZI, H. STONE, K. STRAUCH, B. C. STRINGFELLOW, K. SUDHAKAR, G. SULTANOV, L. Z. SUN, G. F. SUSINNO, H. SUTER, J. D. SWAIN, A. A. SYED, X. W. TANG, L. TAYLOR, G. TERZI, S. C. C., S. M. TING, M. TONUTTI, S. C. TONWAR, J. TOTH, A. TSAREGORODTSEV, G. TSIPOLITIS, C. TULLY, K. L. TUNG, J. ULBRICHT, L. URBAN, U. UWER, E. VALENTE, R. T. VANDEWALLE, I. VETLITSKY, G. VIERTEL, P. VIKAS, U. VIKAS, M. VIVARGENT, H. VOGEL, H. VOGT, I. VOROBIEV, A. A. VOROBYOV, L. VUILLEUMIER, M. WADHWA, W. WALLRAFF, C. WANG, C. R. WANG, X. L. WANG, Y. F. WANG, Z. M. WANG, C. WARNER, A. WEBER, J. WEBER, R. WEILL, T. J. WENAUS, J. WENNINGER, M. WHITE, C. WILLMOTT, F. WITTGENSTEIN, D. WRIGHT, S. X. WU, S. WYNHOFF, B. WYSLOUCH, Y. Y. XIE, J. G. XU, Z. Z. XU, Z. L. XUE, D. S. YAN, B. Z. YANG, C. G. YANG, G. YANG, C. H. YE, J. B. YE, Q. YE, S. C. YEH, Z. W. YIN, J. M. YOU, N. YUNUS, M. YZERMAN, C. ZACCARDELLI, N. ZAITSEV, P. ZEMP, M. ZENG, Y. ZENG, D. H. ZHANG, Z. P. ZHANG, B. ZHOU, G. J. ZHOU, J. F. ZHOU, R. Y. ZHU, A. ZICHICHI, B. C. C., ALOISIO, ALBERTO, ALVIGGI, MARIAGRAZIA, CHIEFARI, GIOVANNI, MEROLA, LEONARDO, NAPOLITANO, MARCO, PATRICELLI, SERGIO, SCIACCA, CRISOSTOMO, Adriani, O., Aguilarbenitz, M., Ahlen, S., Alcaraz, J., Aloisio, Alberto, Alverson, G., Alviggi, Mariagrazia, Ambrosi, G., An, Q., Anderhub, H., Anderson, A. L., Andreev, V. P., Angelescu, T., Antonov, L., Antreasyan, D., Arce, P., Arefiev, A., Atamanchuk, A., Azemoon, T., Aziz, T., P. V. K., Bagnaia, P., Bakken, J. A., Ball, R. C., Banerjee, S., Bao, J., Barillere, R., Barone, L., Baschirotto, A., Battiston, R., Bay, A., Becattini, F., Bechtluft, J., Becker, R., Becker, U., Behner, F., Behrens, J., Bencze, G. L., Berdugo, J., Berges, P., Bertucci, B., Betev, B. L., Biasini, M., Biland, A., Bilei, G. M., Bizzarri, R., Blaising, J. J., Bobbink, G. J., Bock, R., Bohm, A., Borgia, B., Bosetti, M., Bourilkov, D., Bourquin, M., Boutigny, D., Bouwens, B., Brambilla, E., Branson, J. G., Brock, I. C., Brooks, M., Bujak, A., Burger, J. D., Burger, W. J., Busenitz, J., Buytenhuijs, A., Cai, X. D., Capell, M., Caria, M., Carlino, G., Cartacci, A. M., Castello, R., Cerrada, M., Cesaroni, F., Chang, Y. H., Chaturvedi, U. K., Chemarin, M., Chen, A., Chen, C., Chen, G., Chen, G. M., Chen, H. F., Chen, H. S., Chen, M., Chen, W. Y., Chiefari, Giovanni, Chien, C. Y., Choi, M. T., Chung, S., Civinini, C., Clare, I., Clare, R., Coan, T. E., Cohn, H. O., Coignet, G., Colino, N., Contin, A., Costantini, S., Cotorobai, F., Cui, X. T., Cui, X. Y., Dai, T. S., Dalessandro, R., Deasmundis, R., Degre, A., Deiters, K., Denes, E., Denes, P., Denotaristefani, F., Dhina, M., Dibitonto, D., Diemoz, M., Dimitrov, H. R., Dionisi, C., Dittmar, M., Djambazov, L., Dova, M. T., Drago, E., Duchesneau, D., Duinker, P., Duran, I., Easo, S., Elmamouni, H., Engler, A., Eppling, F. J., Erne, F. C., Extermann, P., Fabbretti, R., Fabre, M., Falciano, S., Fan, S. J., Fackler, O., Fay, J., Felcini, M., Ferguson, T., Fernandez, D., Fernandez, G., Ferroni, F., Fesefeldt, H., Fiandrini, E., Field, J. H., Filthaut, F., Fisher, P. H., Forconi, G., Fredj, L., Freudenreich, K., Friebel, W., Fukushima, M., Gailloud, M., Galaktionov, Y., Gallo, E., Ganguli, S. N., Garciaabia, P., Gele, D., Gentile, S., Gheordanescu, N., Giagu, S., Goldfarb, S., Gong, Z. F., Gonzalez, E., Gougas, A., Goujon, D., Gratta, G., Gruenewald, M., Gu, C., Guanziroli, M., Guo, J. K., Gupta, V. K., Gurtu, A., Gustafson, H. R., Gutay, L. J., Hangarter, K., Hartmann, B., Hasan, A., Hauschildt, D., C. F., He, J. T., He, Hebbeker, T., Hebert, M., Herve, A., Hilgers, K., Hofer, H., Hoorani, H., Hu, G., G. Q., Hu, Ille, B., Ilyas, M. M., Innocente, V., Janssen, H., Jezequel, S., Jin, B. N., Jones, L. W., Josamutuberria, I., Kasser, A., Khan, R. A., Kamyshkov, Y., Kapinos, P., Kapustinsky, J. S., Karyotakis, Y., Kaur, M., Khokhar, S., Kienzlefocacci, M. N., Kim, J. K., Kim, S. C., Kim, Y. G., Kinnison, W. W., Kirkby, A., Kirkby, D., Kirsch, S., Kittel, W., Klimentov, A., Klockner, R., Konig, A. C., Koffeman, E., Kornadt, O., Koutsenko, V., Koulbardis, A., Kraemer, R. W., Kramer, T., Krastev, V. R., Krenz, W., Krivshich, A., Kuijten, H., Kumar, K. S., Kunin, A., Landi, G., Lanske, D., Lanzano, S., Lebedev, A., Lebrun, P., Lecomte, P., Lecoq, P., Lecoultre, P., Lee, D. M., Lee, J. S., Lee, K. Y., Leedom, I., Leggett, C., Legoff, J. M., Leiste, R., Lenti, M., Leonardi, E., Li, C., H. T., Li, P. J., Li, Liao, J. Y., Lin, W. T., Lin, Z. Y., Linde, F. L., Lindemann, B., Lista, L., Liu, Y., Lohmann, W., Longo, E., Y. S., Lu, Lubbers, J. M., Lubelsmeyer, K., Luci, C., Luckey, D., Ludovici, L., Luminari, L., Lustermann, W., J. M., Ma, W. G., Ma, Macdermott, M., Malik, R., Malinin, A., Mana, C., Maolinbay, M., Marchesini, P., Marion, F., Marin, A., Martin, J. P., Martinezlaso, L., Marzano, F., G. G. G., Mazumdar, K., Mcbride, P., Mcmahon, T., Mcnally, D., Merk, M., Merola, Leonardo, Meschini, M., Metzger, W. J., Mi, Y., Mihul, A., Mills, G. B., Mir, Y., Mirabelli, G., Mnich, J., Moller, M., Monteleoni, B., Morand, R., Morganti, S., Moulai, N. E., Mount, R., Muller, S., Nadtochy, A., Nagy, E., Napolitano, Marco, Nessitedaldi, F., Newman, H., Neyer, C., Niaz, M. A., Nippe, A., Nowak, H., Organtini, G., Pandoulas, D., Paoletti, S., Paolucci, P., Pascale, G., Passaleva, G., Patricelli, Sergio, Paul, T., Pauluzzi, M., Paus, C., Pauss, F., Pei, Y. J., Pensotti, S., Perretgallix, D., Perrier, J., Pevsner, A., Piccolo, D., Pieri, M., Piroue, P. A., Plasil, F., Plyaskin, V., Pohl, M., Pojidaev, V., Postema, H., Z. D., Qi, Qian, J. M., Qureshi, K. N., Raghavan, R., Rahalcallot, G., Rancoita, P. G., Rattaggi, M., Raven, G., Razis, P., Read, K., Ren, D., Ren, Z., Rescigno, M., Reucroft, S., Ricker, A., Riemann, S., Riemers, B. C., Riles, K., Rind, O., Rizvi, H. A., Ro, S., Rodriguez, F. J., Roe, B. P., Rohner, M., Romero, L., Rosierlees, S., Rosmalen, R., Rosselet, P., Vanrossum, W., Roth, S., Rubbia, A., Rubio, J. A., Rykaczewski, H., Sachwitz, M., Salicio, J., Salicio, J. M., Sanders, G. S., Santocchia, A., Sarakinos, M. S., Sartorelli, G., Sassowsky, M., Sauvage, G., Schegelsky, V., Schmitz, D., Schmitz, P., Schneegans, M., Schopper, H., Schotanus, D. J., Shotkin, S., Schreiber, H. J., Shukla, J., Schulte, R., Schulte, S., Schultze, K., Schwenke, J., Schwering, G., Sciacca, Crisostomo, Scott, I., Sehgal, R., Seiler, P. G., Sens, J. C., Servoli, L., Sheer, I., Shen, D. Z., Shevchenko, S., Shi, X. R., Shumilov, E., Shoutko, V., Son, D., Sopczak, A., Soulimov, V., Spartiotis, C., Spickermann, T., Spillantini, P., Starosta, R., Steuer, M., Stickland, D. P., Sticozzi, F., Stone, H., Strauch, K., Stringfellow, B. C., Sudhakar, K., Sultanov, G., Sun, L. Z., Susinno, G. F., Suter, H., Swain, J. D., Syed, A. A., Tang, X. W., Taylor, L., Terzi, G., S. C. C., Ting, S. M., Tonutti, M., Tonwar, S. C., Toth, J., Tsaregorodtsev, A., Tsipolitis, G., Tully, C., Tung, K. L., Ulbricht, J., Urban, L., Uwer, U., Valente, E., Vandewalle, R. T., Vetlitsky, I., Viertel, G., Vikas, P., Vikas, U., Vivargent, M., Vogel, H., Vogt, H., Vorobiev, I., Vorobyov, A. A., Vuilleumier, L., Wadhwa, M., Wallraff, W., Wang, C., Wang, C. R., Wang, X. L., Wang, Y. F., Wang, Z. M., Warner, C., Weber, A., Weber, J., Weill, R., Wenaus, T. J., Wenninger, J., White, M., Willmott, C., Wittgenstein, F., Wright, D., S. X., Wu, Wynhoff, S., Wyslouch, B., Xie, Y. Y., J. G., Xu, Z. Z., Xu, Xue, Z. L., Yan, D. S., Yang, B. Z., Yang, C. G., Yang, G., C. H., Ye, J. B., Ye, Ye, Q., Yeh, S. C., Yin, Z. W., You, J. M., Yunus, N., Yzerman, M., Zaccardelli, C., Zaitsev, N., Zemp, P., Zeng, M., Zeng, Y., Zhang, D. H., Zhang, Z. P., Zhou, B., Zhou, G. J., Zhou, J. F., Zhu, R. Y., Zichichi, A., and B. C. C.

Subjects
CHARMONIUM, GeneralLiterature_REFERENCE(e.g.,dictionaries,encyclopedias,glossaries)
Abstract

A study of twelve distinct decay channels of the eta(c) has been performed with the L3 detector at LEP, for an integrated luminosity of 30 pb-1. Summing all channels, 28 candidate events have been identified, with an estimated background of 11 events. The two-photon radiative width is evaluated to be GAMMA(gammagamma) (eta(c)) = 8.0 +/- 2.3 +/- 2.4 keV.

Published
1993

29. Covalently cyclized agonist and antagonist analogues of bombesin and related peptides

Author

D H, Coy, N Y, Jiang, S H, Kim, J P, Moreau, J T, Lin, H, Frucht, J M, Qian, L W, Wang, and R T, Jensen

Subjects
Dose-Response Relationship, Drug, Molecular Sequence Data, Cell Line, Rats, Receptors, Neurotransmitter, Receptors, Bombesin, Cyclization, Amylases, Animals, Regression Analysis, Bombesin, Amino Acid Sequence, Peptides, Pancreas
Abstract

During a search for possible cyclization points in shortened, potent bombesin agonists and antagonists, it was found that the joining of amino acid residues in positions 6 and 14 by various means resulted in retention of significant binding affinity for rat pancreatic acini and murine Swiss 3T3 cells. In one series of analogues, Cys residues in these positions were used for bridging via a disulfide bond. (D)-C-Q-W-A-V-G-H-L-C-NH2 retained significant binding affinity for rat pancreatic acini cells and was a full amylase releasing agonist (EC50 187 nM). Potency was markedly increased by substituting D-Ala for Gly (EC50 67 nM compared to 10 nM for its linear counterpart) and was decreased by substituting L-Cys for D-Cys in this analogue (EC50 214 nM), thus strongly suggesting stabilization of peptide folding by the D residues. Elimination of the COOH-terminal amino acid produces competitive antagonists in the linear analogues; however, (D)-C-Q-W-A-V-G-H-C-NH2 was devoid of activity. Likewise, cyclization to position 13 with the 14 amino acids intact to give (D)-C-Q-W-A-V-G-H-C-L-NH2 resulted in an almost inactive peptide. On the other hand, as in the linear series, the reduced peptide bond analogue, (D)-C-Q-W-A-V-(D)-A-H-L-psi (CH2NH)-C-NH2, was a receptor antagonist (IC50 5.7 mM), albeit much weaker than the corresponding linear analogues, but with no residual agonist activity. Direct head-to-tail cyclization was also tried. Both cyclo[(D)-F-Q-W-A-V-G-H-L-L] (EC50 346 nM) and the shorter cyclo [Q-W-A-V-G-H-L-L] (EC50 1236 nM) were full agonists. Elimination of the COOH-terminal residue in cyclo[(D)-p-Cl-F-Q-W-A-V-(D)-A-H-L] produced an agonist (EC50 716 nM) rather than an antagonist. These results provide support for the proposal that both bombesin agonists and antagonists adopt a folded conformation at their receptor(s). Furthermore, the retention of appreciable potencies using several cyclization strategies and chain lengths suggests that further optimization of these structures both in terms of potency and ring size is possible. Since these peptides have increased conformational restriction, they should begin to serve as useful substrates for NMR and molecular modeling studies aimed at comparing the obviously subtle differences between agonist and antagonist structures.

Published
1991

30. Measurements of Z° bƀ decays and the semileptonic branching ratio BR (b→, ℓ + X)

Author

Qi An, H. Janssen, F. Chollet, K.S. Yang, Petr Levchenko, J. P. Burq, S. Röhner, Y. J. Pei, F. Wittgenstein, P. Duinker, M. Sachwitz, T. Azemoon, E. Valente, E. Drago, J. Perrier, Kenneth Francis Read, L. Niessen, S. C. Tonwar, D. Wright, B. N. Jin, H. Anderhub, L. Luminari, J. J. Blaising, G. Sanders, S. X. Wu, G. Conforto, D. Hauschildt, H. Nowak, G. Mirabelli, Adrian Biland, D. Goujon, M. Gailloud, S. Shevchenko, I. Scott, R. Raghavan, J. Alcaraz, G. Schwering, A. Arefiev, O. Fackler, Wolfgang Stoeffl, K.D. Shmakov, S. J. Fan, L. Baksay, P. Cardenal, E. Soderstrom, D.W. Schmitz, G.G.G. Massaro, S. Banerjee, W. Kittel, Ph. Rosselet, A. Klimentov, R. Weill, L. Zehnder, Robert Clare, J. Busenitz, W. Wallraff, R. Liu, R. Sehgal, J. Weber, P. Bagnaia, L. Z. Sun, D. Linnhofer, Federico Carminati, H.R. Dimitrov, M. Steuer, P. Marchesini, Ming Zeng, M. Röhner, X. L. Wang, Yuehong Xie, M. Vivargent, B. Spiess, Christine Buisson, Z. M. Wang, G.B. Mills, Cheng Chen, A. Böhm, F. Ferroni, Y. Zeng, M. Bocciolini, D. Perret-Gallix, Pablo Garcia-Abia, Alain Hervé, H. S. Fesefeldt, J. Schütte, J. D. Burger, K. Sudhakar, G. Rahal-Callot, Y.F. Mao, R. T. Van de Walle, J. Field, D. Pandoulas, T. McMahon, B. L. Betev, S. S. Gau, T. J. Wenaus, P.V.K.S. Baba, Aa Vorobyov, S. Patricelli, M. Capell, J. Krizmanic, A. Marchionni, Carlo Civinini, M. Maolinbay, J. Behrens, P. J. Li, BT Bouwens, M. Maire, P. Zemp, V. Pojidaev, R. de Asmundis, Thomas Hebbeker, Paul Lecoq, M. Napolitano, M. T. Dova, H. O. Cohn, B. Martin, Q. Ye, M. N. Kienzle-Focacci, X.G. Li, M. Aguilar-Benitez, Herwig Schopper, M. White, B. Bertucci, T. Kramer, D. Gele, T. Ferguson, C. Never, H. L. Zhuang, I. C. Brock, V.R. Krastev, E. Gonzalez, B. Ille, M. Möller, D. P. Stickland, R.J. Wu, U. Uwer, A. Chen, J. Salicio, W. Krenz, D. Duchesneau, H. S. Chen, J. M. Salicio, V. Plyaskin, Raffaello D'Alessandro, C. Grinnell, F. DeNotaristefani, S. Falciano, D. McNally, D. DiBitonto, H. Haan, Mariagrazia Alviggi, A. Gordeev, Bernardo Adeva, Samuel C.C. Ting, E. Dénes, M. MacDermott, D. N. Mao, L. J. Gutay, U. Becker, P. Denes, L. Ludovici, T. Spickermann, Leonardo Merola, B. Borgia, K. Schultze, X. Leytens, G. Viertel, J. Ulbricht, G. Passaleva, R. W. Kraemer, L. Li, M. A. Niaz, X. Lue, U. K. Chaturvedi, H. F. Chen, R. L. Sumner, S. Lanzano, Y. S. Lu, I. Duran, P. Lebrun, D. Lanske, Sc Yeh, A. Gurtu, Marcos Cerrada, A. Savin, J. Schwenke, V. Shoutko, M. L. Chen, V. Shevchenko, P. Schmitz, X. Y. Cui, T. Angelov, G. Fernandez, F. J. Eppling, Crisostomo Sciacca, J. Fay, Marco Pieri, Jérôme Rose, S. Gentile, D. S. Yan, H. Newman, Z. F. Gong, C. J.W.P. Timmermans, L. Martinez-Laso, A. M. Cartacci, A. C. König, Y.P. Tong, Laurent Vuilleumier, A. Kunin, M. Rubio, G. Trowitzsch, C. Y. Chien, Ry Zhu, J. Wenninger, L. Romero, S. M. Ting, M. S. Sarakinos, J. A. Bakken, J.F. Li, K. Freudenreich, I. Leedom, B. Z. Yang, H. Hofer, K. L. Tung, A. Engler, K. Lanius, G. Hu, M. Bourquin, J. Mnich, E. Nagy, M. J. Glaubman, H. Suter, D. Antreasyan, M. Fukushima, B. P. Roe, W. Y. Chen, Wen-Gan Ma, G. Forconi, Valentin V. Khoze, M. Schneegans, G. Sauvage, N. Produit, C-Q. Li, Carlos Willmott, O. Rind, Q.Y. Yang, P. Razis, Y. F. Wang, W. Ruckstuhl, G. Landi, I. Clare, A. Bay, G. Von Dardel, J. M. Qian, A. Degré, G. Coignet, C. Maña, Alberto Aloisio, A. Ricker, L. Urban, E. Longo, J. D. Swain, Q. F. Wang, V. Commichau, H. J. Schreiber, J.C. Sens, H. T. Li, A. Rubbia, T. Foreman, G. Herten, Manjit Kaur, E. Leonardi, Th. Meinholz, G. Gratta, W. Kinnison, I. Sheer, P. Göttlicher, A. Hasan, L. Leistam, H. Akbari, Daqiang Zhang, F. Cesaroni, I. Vorobiev, M. M. Ilyas, Y. D. Xu, G. Chiefari, P. Arce, V. Lalieu, W. Friebel, G. Faber, X. W. Tang, S. Schulte, K. Schmiemann, I. Vetlitsky, Y. H. Chang, Vincenzo Innocente, George Alverson, P. Berges, J. B. Ye, T. Aziz, Vineet Kumar, Y. Mir, C. H. Ye, J. M. Le Goff, M. Lenti, A. L. Anderson, J. Bao, A. A. Syed, Ying Wu, J. F. Zhou, R. Leiste, Nikita Smirnov, D. Z. Shen, Hafeez R. Hoorani, A. C. Weber, Zheng Wang, P. G. Seiler, J. A. Rubio, P. Le Coultre, B. Monteleoni, F. Sticozzi, C. Spartiotis, Zhen Zhang, G. H. Wang, C. Dionisi, B.C. Stringfellow, Helmut Vogel, R. Starosta, R. Mount, Gy L. Bencze, R. Fabbretti, J. P. Martin, Reinhard W. Schulte, D. Luckey, F. C. Erné, Z. L. Xue, M. Yzerman, F. Crijns, M. Fabre, K. Lübelsmeyer, Piero Spillantini, C. Rippich, S. L. Wu, D. Boutigny, Georgi Sultanov, T. S. Dai, R. A. Khan, A. Zichichi, H. Stone, J. G. Branson, S. Morganti, T. Driever, G. Morand, R. C. Ball, F. Tonisch, S. Khokhar, X. J. Yan, Q. Fan, S. Müller, V. P. Andreev, K. N. Qureshi, K. Strauch, G.J. Bobbink, Yanwen Liu, Xd Cai, D. Lee, Jun Guo, J. Y. Liao, R. Morand, G. M. Chen, C. Zaccardelli, B. Lindemann, R. Bock, Sabine Riemann, E. Tarkovsky, F. Bruyant, J. Fehlmann, E. Shumilov, Dimitri Bourilkov, L. Barone, R. Malik, Pierre Lecomte, S. Goldfarb, J. M. Lubbers, N. E. Moulai, Zhuoxiang Ren, M. Wadhwa, D. J. Schotanus, L. Antonov, J. M. You, G. A. Yang, S. Beingessner, K. Hilgers, Qiang Li, P. A. Piroué, U. Herten, P. McBride, G. Finocchiaro, H. El Mamouni, M. Diemoz, R. Bizzarri, An.A. Vorobyov, T. Matsuda, O. Adriani, Lucas Taylor, Yu. Kamyshkov, Mw Gruenewald, F. Plasil, C. G. Yang, Bolek Wyslouch, K. S. Kumar, Mingshui Chen, C. F. He, A. Pevsner, Barry Blumenfeld, Valery Schegelsky, Ph Fisher, H. Rykaczewski, Y. Karyotakis, D. Ren, M. Dhina, R.B. Sutton, L. W. Jones, Z. Y. Lin, J.H. Wang, Zhongyukun Xu, H. A. Rizvi, U. Vikas, A. Contin, W. J. Metzger, F. Marzano, F. Carbonara, F. L. Linde, P. Blömeke, J. Berdugo, Z.Q. Yang, A. Malinin, M. Guanziroli, R. Magahiz, Sn Ganguli, S. Rosier-Lees, M. Tonutti, G. Sartorelli, F. Diez-Hedo, H. R. Gustafson, Y. Mi, U. Roeser, Frank Filthaut, Marco Meschini, D. Kirkby, X.R. Shi, Christopher George Tully, Wolfgang Lohmann, H. Vogt, Nicanor Colino, M. Chemarin, L.S. Hsu, Jozsef Toth, J. Lettry, Claudio Luci, Elisabetta Gallo, A. Sopczak, Chenliang Wang, Yu. Galaktionov, S. Reucroft, S. Shotkin, P. Extermann, M. Merk, P. Vikas, E. Isiksal, R. Rosmalen, A. Kasser, Guofan Hu, K. Mazumdar, V. Koutsenko, Z. W. Yin, Giovanni Paternoster, P. K. Malhotra, K. Deiters, Roberto Divia, M. Hebert, A. Bujak, Oliver Kornadt, and M. Pohl

Subjects
Physics, Nuclear and High Energy Physics, Muon, 010308 nuclear & particles physics, Branching fraction, Electron–positron annihilation, Hadron, Analytical chemistry, Electron, 01 natural sciences, Standard Model, Nuclear physics, decaimiento, 0103 physical sciences, mediciones, High Energy Physics::Experiment, 010306 general physics, Nuclear Experiment, Ciencias Exactas, Lepton
Abstract

We have measured the decay properties of from a study of inclusive muon and electron events. The average (e and μ) b-quark semileptonic branching ratio has been determined to be BR (b → ℓ + X) = 0.119 ± 0.003 (stat.) ± 0.006 (syst.), assuming the standard model prediction of Γbb = 378 ± 3 MeV. From the ratio of the number of dilepton events to single lepton events, we find BR (b → ℓ + X) = 0.113 ± 0.010 (stat.) ± 0.006 (syst.), without assumptions on Λbb. The partial decay width of the Z0 into has been measured to be Λbb = 385 ± 7 (stat.) ± 11 (syst.) MeV with an additional 19 MeV error from the uncertainty in BR (b → ℓ + X). The average fractional energy of bottom hadrons in events has been determined to be 〈xE〉 = 0.686 ± 0.006 (stat.) ± 0.016 (syst.)., Facultad de Ciencias Exactas

Published
1991

31. Reduced peptide bond pseudopeptide analogues of substance P. A new class of substance P receptor antagonists with enhanced specificity

Author

J M, Qian, D H, Coy, N Y, Jiang, J D, Gardner, and R T, Jensen

Subjects
Male, Kinetics, Structure-Activity Relationship, Amylases, Guinea Pigs, Animals, Indicators and Reagents, In Vitro Techniques, Receptors, Neurokinin-1, Substance P, Binding, Competitive, Pancreas, Receptors, Neurotransmitter
Abstract

Each of the last 6 peptide bonds in the COOH terminus of [Leu11]substance P [( Leu11]SP) and [Nle11]spantide were replaced with [CH2NH], and each analogue was tested for SP agonist or antagonist activity by determining its ability to interact with SP receptors on dispersed acini from guinea pig pancreas. Each of the 6 spantide and 5 of the 6 SP analogues had no agonist activity, whereas [psi 9-10]SP was an agonist. For the spantide pseudopeptides, the psi 10-11 analogue (Ki,2.8 microM) was equipotent as an antagonist to spantide itself, whereas the psi 9-10, psi 8-9, psi 7-8, and psi 6-7 analogues were 2.5, 7, 5, and 3 times less potent. For the SP pseudopeptides, the psi 10-11 analogue was the most potent antagonist (Ki, 6.2 microM), whereas the psi 8-9, psi 7-8, and psi 6-7 analogues were 7-, 36-, and 39-fold less potent. There was a close correlation between the ability of each pseudopeptide to inhibit binding of 125I-Bolton-Hunter-SP and to affect amylase secretion. [psi 10-11]SP inhibited SP-stimulated amylase release in a competitive manner, and its inhibitory ability was specific for the SP receptor. Despite [psi 10-11]SP, spantide, and [psi 10-11]spantide having similar affinities for the SP receptor (Ki, 2-6 microM), for inhibition of binding of 125I-[Tyr4]bombesin, the analogues differed with [psi 10-11]SP having a 50-fold lower affinity than for the SP receptor, whereas [psi 10-11]spantide had a 4-fold lower affinity and spantide a 1.5-fold lower affinity for the SP receptor. These results demonstrate that SP pseudopeptides represent a new class of SP receptor antagonists and, in contrast to the currently described SP receptor antagonists, are more specific for SP receptors.

Published
1989

32. Determination of alpha-s from hadronic event shapes measured on the Z0 resonance

Author

B. Monteleoni, F. Sticozzi, C. Spartiotis, R. Morand, Z. L. Xue, Howard A. Stone, Roberto Battiston, Gerjan Bobbink, B. Borgia, J. Ulbricht, I. Clare, J. Busenitz, P. Göttlicher, J. M. Salicio, A. Arefiev, A. Kasser, Guofan Hu, C. Neyer, R. Mount, V. Plyaskin, Y. J. Pei, Raffaello D'Alessandro, M. Vivargent, Stefan Kirsch, B. N. Jin, M. Sachwitz, C. Grinnell, A. M. Cartacci, R. Raghavan, H. Nowak, Z. F. Gong, H. Anderhub, T. E. Coan, J. G. Branson, H. R. Gustafson, U. Herten, M. Bocciolini, M. T. Dova, D.N. Mao, Leonardo Merola, A. C. König, Laurent Vuilleumier, Y. H. Chang, Z. W. Yin, S. N. Ganguli, H. O. Cohn, F. Marzano, G. Coignet, W. Krenz, M. N. Kienzle-Focacci, R. Rosmalen, W. Wallraff, George Alverson, A. Degré, An.A. Vorobyov, T. Matsuda, A. Tsaregorodtsev, J. S. Kapustinsky, M. Gailloud, S. Banerjee, Yongqing Wu, E. Sajan, Samuel C.C. Ting, X. T. Cui, T. Kramer, J. J. Blaising, Tariq Aziz, R. Barillère, T. Azemoon, P. Schmitz, Lucas Taylor, Steven Goldfarb, M. Caria, Steven Ahlen, R. L. Sumner, G. H. Wang, W. Kittel, S. Schulte, K. Schmiemann, Dimitri Bourilkov, A. Koulbardis, D. Linnhofer, G. Herten, Federico Carminati, K. Freudenreich, D. Gele, E. Nagy, J. Wenninger, V. Pojidaev, Marcos Cerrada, W. Friebel, G. M. Bilei, M. Fabre, M. Schneegans, O. Adrian, Yu. Kamyshkov, N. E. Moulai, D. M. Lee, P. Zemp, Mw Gruenewald, V. Koutsenko, E. Fiandrini, Mariagrazia Alviggi, Andrea Contin, D. P. Stickland, S. X. Wu, G. B. Mills, Crisostomo Sciacca, Marco Pieri, D. Z. Shen, J. A. Bakken, J.P. Burq, R. de Asmundis, Y. Mir, C. H. Ye, M. Möller, S. Patricelli, M. Sassowsky, R. Fabbretti, C. G. Yang, G. Sauvage, R.B. Sutton, D. DiBitonto, Yu. Galaktionov, J. Alcaraz, Ph. Rosselet, Atul Gurtu, K. Deiters, M. Steuer, Q. Ye, Wen-Gan Ma, C. Maña, I. Vetlitsky, K. S. Kumar, G. Forconi, Alberto Aloisio, Harvey B Newman, K. Hilgers, H. F. Chen, J. D. Burger, J. Weber, G. Rahal-Callot, D. Fernandez, D. Perret-Gallix, A. Ricker, Yanwen Liu, Adrian Biland, B. P. Roe, W. Y. Chen, Th. Meinholz, B. Zhou, Cheng Chen, W. J. Burger, Sabine Riemann, S. J. Fan, X. W. Tang, I. Sheer, P. A. Piroué, C. Zaccardelli, F. Ferroni, B. C.C. van der Zwaan, W. W. Kinnison, G. Chiefari, S. Shevchenko, K. Schultze, H. Suter, A. Bujak, Oliver Kornadt, M. Pohl, Y. Zeng, A. Krivshich, F. Behner, Pablo Garcia-Abia, Alain Hervé, T. Angelov, D. Lanske, Sc Yeh, R. Malik, L. Romero, H. El Mamouni, A. Engler, I. C. Brock, A. Bay, Wt Lin, J. M. Lubbers, Jianming Qian, G. Hu, B. L. Betev, Carlo Civinini, M. Maolinbay, G. Raven, M. Bourquin, K. Strauch, J. C. Sens, P. Arce, D. Goujon, N. Yunus, G. Gratta, M. Aguilar-Benitez, H. S. Fesefeldt, Egidio Longo, Herwig Schopper, M. White, Zhuoxiang Ren, Carlos Willmott, M. Wadhwa, D. J. Schotanus, J. M. You, Vincenzo Innocente, S. Röhner, Speranza Falciano, Y. F. Wang, N. Produit, V. R. Krastev, F. Wittgenstein, L. Ludovici, M. Chmeissani, H. T. Li, D. Antreasyan, E. Drago, G. A. Yang, L. Niessen, A. Sopczak, L. J. Gutay, Ren-Yuan Zhu, Luciano Barone, Qi An, U. Becker, A. Marin, T. Driever, M. M. Ilyas, A. A. Syed, H. Janssen, Jiunn-Wei Chen, I. Duran, K.S. Yang, M. Rescigno, P. Kapinos, B.C. Stringfellow, H. R. Dimitrov, O. Fackler, L. Urbán, P. Duinker, F. J. Eppling, L. W. Jones, D. S. Yan, M. Yzerman, F. Crijns, S. M. Ting, A. Klimentov, Jun Guo, B. Lindemann, G. Passaleva, E. Dénes, R. Sehgal, G. Finocchiaro, Kenneth Francis Read, Q.Y. Yang, L. Z. Sun, D. Hauschildt, Marcel Merk, J. Perrier, Els Koffeman, R. Weill, C-Q. Li, Yuehong Xie, Christine Buisson, S. S. Gau, T. J. Wenaus, V. K. Gupta, A. L. Anderson, F. Marion, H. J. Schreiber, J. F. Zhou, M. MacDermott, P.V.K.S. Baba, H. L. Zhuang, M. A. Niaz, E. Brambilla, R. Bizzarri, F. DeNotaristefani, A. Hasan, Y. D. Xu, F. Cesaroni, J. Y. Liao, Emilio Leonardi, J. Schütte, P. Berges, R. Bock, L. Baksay, U. K. Chaturvedi, Y. S. Lu, M. Fukushima, M. Lenti, A. Nadtochy, Xiaoli Li, D. Duchesneau, J. M. Le Goff, D. H. Wright, G. S. Sanders, P. G. Seiler, J. A. Rubio, A. Malinin, Jérôme Rose, Kajari Mazumdar, S. Khokhar, T.R. McMahon, X. J. Yan, S. Müller, X. L. Wang, Xd Cai, J. H. Field, C. Y. Chien, J. Behrens, P. J. Li, P. Lebrun, BT Bouwens, U. Uwer, A. Chen, J. Salicio, Maurizio Biasini, Marta Felcini, Francesco Becattini, M. Capell, J. Krizmanic, Valery Schegelsky, Antonino Zichichi, Ph Fisher, H. Rykaczewski, Giovanni Organtini, Y. Karyotakis, E. Gonzalez, S. Chung, Attilio Santocchia, Jean Fay, M. Dhina, D. Boutigny, S. Lanzano, P. Vikas, G. Tsipolitis, Z. Y. Lin, L. Antonov, K. Sudhakar, J.H. Wang, Zhongyukun Xu, P. K. Malhotra, H. A. Rizvi, Y. Mi, J. B. Ye, A. Kunin, Gerard Fernandez, F. Plasil, Mingshui Chen, Hafeez R Hoorani, Jozsef Toth, J. Lettry, Elisabetta Gallo, M. Pauluzzi, Chenliang Wang, S. Reucroft, S. Shotkin, W. J. Metzger, D. Ren, S. C. Tonwar, J. Shukla, M. S. Sarakinos, M.L. Chen, U. Vikas, Frank Filthaut, Marcella Diemoz, M. Guanziroli, Zheng Wang, Giovanni Ambrosi, J. P. Martin, Zhenyu Zhang, E. Valente, D. McNally, A. C. Weber, Bolek Wyslouch, Qian Wang, E. Shumilov, X. R. Shi, V. Shoutko, X. Leytens, G. Viertel, Felicitas Pauss, Chenjie Gu, C. F. He, Marco Meschini, P. Extermann, G. Mirabelli, I. Leedom, B. Z. Yang, H. Hofer, K. L. Tung, S. Rosier-Lees, Hans J. Vogel, S. Morganti, D. Kirkby, D.W. Schmitz, P. Le Coultre, M. Tonutti, J. Schwenke, K. N. Qureshi, G.G.G. Massaro, A. Pevsner, K. Lübelsmeyer, Piero Spillantini, X. Y. Cui, Igor Vorobiev, Claudio Luci, S. Beingessner, Robert Clare, Barry Blumenfeld, Thomas Hebbeker, Paul Lecoq, R. W. Kraemer, K. Hangarter, M. Napolitano, M. Hebert, E. Soderstrom, H. S. Chen, L. Servoli, L. Martinez-Laso, Panos A Razis, J. Mnich, A. Atamanchuk, P. Marchesini, R. Starosta, P. Blömeke, D. Luckey, Gy L. Bencze, A. Rubbia, T. Foreman, Ming Zeng, Reinhard W. Schulte, M. Röhner, Christopher George Tully, Stéphane Jézéquel, J. Bao, F. C. Erné, Simonetta Gentile, R.J. Wu, J. Berdugo, Y.F. Mao, Z.Q. Yang, R. T. Van de Walle, Lamberto Luminari, G. Schwering, Wolfgang Lohmann, H. Vogt, B. Bertucci, I. Scott, Nicanor Colino, G. Landi, M. L. Brooks, R. C. Ball, Simone Paoletti, O. Rind, Pierre Lecomte, G. Sartorelli, Charles Timmermans, Manjit Kaur, C. Dionisi, D. Pandoulas, Georgi Sultanov, Fl Linde, T. S. Dai, R. A. Khan, T. Spickermann, V. P. Andreev, Daqiang Zhang, Bernard Ille, M. Chemarin, G. M. Chen, Peter Denes, Paolo Bagnaia, J. D. Swain, P. McBride, T. Fergusson, A. Böhm, R. Leiste, Laboratoire d'Annecy de Physique des Particules (LAPP), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), Institut de Physique Nucléaire de Lyon (IPNL), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), CMS, Institut de Physique des 2 Infinis de Lyon (IP2I Lyon), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS), L3, O., Adriani, M., Aguilarbenitez, S., Ahlen, H., Akbari, J., Alcaraz, Aloisio, Alberto, G., Alverson, Alviggi, Mariagrazia, G., Ambrosi, Q., An, H., Anderhub, A. L., Anderson, V. P., Andreev, T., Angelov, L., Antonov, D., Antreasyan, P., Arce, A., Arefiev, A., Atamanchuk, T., Azemoon, T., Aziz, P. V., K., P., Bagnaia, J. A., Bakken, L., Baksay, R. C., Ball, S., Banerjee, J., Bao, R., Barillere, L., Barone, R., Battiston, A., Bay, F., Becattini, U., Becker, F., Behner, J., Behren, S., Beingessner, G. L., Bencze, J., Berdugo, P., Berge, B., Bertucci, B. L., Betev, M., Biasini, A., Biland, G. M., Bilei, R., Bizzarri, J. J., Blaising, P., Blomeke, B., Blumenfeld, G. J., Bobbink, M., Bocciolini, R., Bock, A., Bohm, B., Borgia, D., Bourilkov, M., Bourquin, D., Boutigny, B., Bouwen, E., Brambilla, J. G., Branson, I. C., Brock, M., Brook, C., Buisson, A., Bujak, J. D., Burger, W. J., Burger, J. P., Burq, J., Busenitz, X. D., Cai, M., Capell, M., Caria, F., Carminati, A. M., Cartacci, M., Cerrada, F., Cesaroni, Y. H., Chang, U. K., Chaturvedi, M., Chemarin, A., Chen, C., Chen, G. M., Chen, H. F., Chen, H. S., Chen, J., Chen, M., Chen, M. L., Chen, W. Y., Chen, Chiefari, Giovanni, C. Y., Chien, M., Chmeissani, S., Chung, C., Civinini, I., Clare, R., Clare, T. E., Coan, H. O., Cohn, G., Coignet, N., Colino, A., Contin, F., Crijn, X. T., Cui, X. Y., Cui, T. S., Dai, R., Dalessandro, R., Deasmundi, A., Degre, K., Deiter, E., Dene, P., Dene, F., Denotaristefani, M., Dhina, D., Dibitonto, M., Diemoz, H. R., Dimitrov, C., Dionisi, M. T., Dova, E., Drago, T., Driever, D., Duchesneau, P., Duinker, I., Duran, H., Elmamouni, A., Engler, F. J., Eppling, F. C., Erne, P., Extermann, R., Fabbretti, M., Fabre, S., Falciano, S. J., Fan, O., Fackler, J., Fay, M., Felcini, T., Ferguson, D., Fernandez, G., Fernandez, F., Ferroni, H., Fesefeldt, E., Fiandrini, J., Field, F., Filthaut, G., Finocchiaro, P. H., Fisher, G., Forconi, T., Foreman, K., Freudenreich, W., Friebel, M., Fukushima, M., Gailloud, Y., Galaktionov, E., Gallo, S. N., Ganguli, P., Garciaabia, S. S., Gau, D., Gele, S., Gentile, S., Goldfarb, Z. F., Gong, E., Gonzalez, P., Gottlicher, D., Goujon, G., Gratta, C., Grinnell, M., Gruenewald, C., Gu, M., Guanziroli, J. K., Guo, V. K., Gupta, A., Gurtu, H. R., Gustafson, L. J., Gutay, K., Hangarter, A., Hasan, D., Hauschildt, C. F., He, T., Hebbeker, M., Hebert, G., Herten, U., Herten, A., Herve, K., Hilger, H., Hofer, H., Hoorani, G., Hu, G. Q., Hu, B., Ille, M. M., Ilya, V., Innocente, H., Janssen, S., Jezequel, B. N., Jin, L. W., Jone, A., Kasser, R. A., Khan, Y., Kamyshkov, P., Kapino, J. S., Kapustinsky, Y., Karyotaki, M., Kaur, S., Khokhar, M. N., Kienzlefocacci, W. W., Kinnison, D., Kirkby, S., Kirsch, W., Kittel, A., Klimentov, A. C., Konig, E., Koffeman, O., Kornadt, V., Koutsenko, A., Koulbardi, R. W., Kraemer, T., Kramer, V. R., Krastev, W., Krenz, A., Krivshich, J., Krizmanic, K. S., Kumar, A., Kunin, G., Landi, D., Lanske, S., Lanzano, P., Lebrun, P., Lecomte, P., Lecoq, P., Lecoultre, D. M., Lee, I., Leedom, J. 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Subjects
Nuclear and High Energy Physics, Particle physics, LUND MONTE-CARLO, Electron–positron annihilation, TO-BACK JETS, Hadron, Jet (particle physics), 01 natural sciences, Resonance (particle physics), ELECTRON-POSITRON-ANNIHILATION, Nuclear physics, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], Resummation, 010306 general physics, GeneralLiterature_REFERENCE(e.g.,dictionaries,encyclopedias,glossaries), Physics, Quantum chromodynamics, QUANTUM CHROMODYNAMICS, 010308 nuclear & particles physics, JET PRODUCTION-RATES, High Energy Physics::Phenomenology, E+E-ANNIHILATION, QCD, FREE PERTURBATION-THEORY, Hadronization, ENERGY CORRELATIONS, Experimental uncertainty analysis, High Energy Physics::Experiment, FRAGMENTATION, Particle Physics - Experiment
Abstract

We present a study of the global event shape variables thrust and heavy jet mass, of energy-energy correlations and of jet multiplicities based on 250 000 hadronic Z 0 decays. The data are compared to new QCD calculations including resummation of leading and next-to-leading logarithms to all orders. We determine the strong coupling constant α s (91.2 GeV) = 0.125±0.003 (exp) ± 0.008 (theor). The first error is the experimental uncertainty. The second error is due to hadronization uncertainties and approximations in the calculations of the higher order corrections.

Published
1992
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33. A measurement of the Z0 leptonic partial widths and the vector and axial vector coupling constants

Author

Aa Vorobyov, Francesco Marzano, T. Angelov, J.M. Qian, Philip Kaaret, A. Engler, N. Smirnov, W. Krenz, G. Hu, J.M. Thenard, A.M. Cartacci, Carlos Willmott, L. Ludovici, H.R. Dimitrov, L. Urbàn, V. Plyaskin, U. Becker, G. Rahal-Callot, D.N. Mao, C. Souyri, E. Thomas, Sandra Consuegra Rodríguez, H. T. Li, R.J. Wu, F. J. Eppling, D. S. Yan, S.S. Gau, An.A. Vorobyov, T. Matsuda, F. Cesaroni, L. Leistam, S. M. Ting, Federico Carminati, M. Gailloud, M.L. Chen, Yu. Galaktionov, L. Baksay, K. Schultze, V.G. Shevchenko, Boleslaw Wyslouch, H.J. Schreiber, C.Y. Chien, H.F. Chen, Y.P. Tong, P.G. Seiler, J. Alcaraz, S. Patricelli, E. Tarkovsky, A. Heavey, Q. Ye, V. Schegelsky, M. Gettner, D. Lanske, O. Adriani, G.Q. Hu, T. Kramer, J.C. Sens, Peter Denes, M. Sachwitz, C. Maña, Qi An, S. Lökös, R. Raghavan, Marcella Diemoz, Paolo Bagnaia, J. J. Blaising, T. Ferguson, M. G. Alviggi, K.S. Yang, Samuel C.C. Ting, Th. Rombach, J. P. Burq, G. Von Dardel, K. N. Qureshi, Steven Goldfarb, Marco Meschini, D. Kirkby, J. Schütte, G. Landi, F.G. Hartjes, Laurent Vuilleumier, U. Herten, T. Böhringer, X.R. Shi, D.W. Schmitz, B. N. Jin, H. Haan, Simonetta Gentile, E. Isiksal, D.H. Zhang, Igor Vorobiev, Lamberto Luminari, Y. Peng, S. Schulte, C. Pols, P. Marchesini, B. Stöhr, Ming Zeng, P. Vikas, R. Leiste, Robert Clare, X. Lue, M. Röhner, S. C. Yeh, Antonino Zichichi, J.M. Lubbers, F. Bruyant, V. Morgunov, T. Foreman, Kenneth Francis Read, Egidio Longo, U. K. Chaturvedi, H. Rykaczewski, D. Harting, Thomas Hebbeker, Panos A Razis, Y.J. Pei, Y. S. Lu, Paul Lecoq, G. Conforto, J. Fehlmann, I. Vetlitsky, P. Blömeke, R. L. Sumner, W. Ruckstuhl, S. Rosier-Lees, T. Riemann, M. Napolitano, P. Schmitz, B. Bertucci, Alexei Klimentov, K. Deiters, D. Zhang, D. P. Stickland, P. Le Coultre, Yu. Kamyshkov, R.C. Ball, Adrian Biland, G. Schwering, J. Ulbricht, Raffaello D'Alessandro, Dimitri Bourilkov, C. Camps, Nicanor Colino, L. Zehnder, Y.F. Mao, H. Vogt, R. T. Van de Walle, S. X. Wu, A. Gordeev, M. Micke, Lawrence W. Jones, J. Wenninger, Y. Karyotakis, K. Sudhakar, Y. Mir, C. H. Ye, G. Fernandez, G. H. Wang, K. Hangarter, H. S. Chen, Helmut Vogel, Oliver Kornadt, M. Pohl, R. Liu, Mw Gruenewald, R. Starosta, V. Pojidaev, Jérôme Rose, R. Wilhelm, C. Grinnell, Y. Mi, K. Freudenreich, Leonardo Merola, K.D. Shmakov, S. J. Fan, W. Walk, S. Banerjee, Zp Zhang, Ph. Rosselet, G. J. Bobbink, M. M. Ilyas, Pierre Lecomte, Wesley James Metzger, L.S. Hsu, L. Montanet, D. Luckey, Gy L. Bencze, G. Herten, J. P. Martin, B. Spiess, J.Y. Liao, P.V.K.S. Baba, M. Steuer, J. Onvlee, M. Bourquin, C. G. Yang, I. C. Brock, C. Chen, X. D. Cai, G. Forconi, J. Weber, Z.Q. Yang, E. Valente, M. Chemarin, E. Perrin, K. Strauch, Tariq Aziz, W. Friebel, G. Faber, M. Fabre, Corinne Goy, B. Borgia, V. Lalieu, T.J. Wenaus, S. L. Wu, Speranza Falciano, Vincenzo Innocente, R. Fabbretti, T. Azemoon, Patricia McBride, S. Morganti, Jd Burger, M. Capell, Georgi Sultanov, Jozsef Toth, Charles Timmermans, A. Kuhn, R. A. Khan, H. Akbari, G. Sauvage, V. Koutsenko, Z.Z. Xu, Gaihe Yang, J. Lettry, Claudio Luci, Suresh C Tonwar, R. Weill, G.B. Mills, A. Malinin, Mingshui Chen, M. Dhina, A. van Laak, Qun Wang, R. Dolin, Marcos Cerrada, D. Perret-Gallix, H. S. Fesefeldt, Axel König, D. J. Schotanus, J. A. Bakken, Elisabetta Gallo, R.B. Sutton, W. Lohmann, P. Lebrun, V. P. Andreev, X. L. Wang, E. Jagel, Crisostomo Sciacca, Yanwen Liu, P. J. Li, J. Schwenke, X. Y. Cui, Fridolin Dittus, J. Fay, Marco Pieri, Chenliang Wang, M. Fukushima, P. Schmitt, M. Glaubman, K. Mazumbar, G. M. Chen, S. Reucroft, Harvey B Newman, K. Hilgers, D. Güsewell, A. Chen, M. Vollmar, F. Ferroni, I. Clare, W. Wallraff, D. Wright, H. Fenker, D. Antreasyan, J. M. Le Goff, Alberto Aloisio, S. Beingessner, A. Grimes, Y. Zeng, Z.F. Gong, Th. Meinholz, S.Y. Zhang, A. L. Anderson, J. A. Rubio, P. Göttlicher, J.H. Wang, J. Mnich, P. K. Malhotra, D. Ren, Ying Wu, X. W. Tang, J. G. Branson, J. Von Rango, I. Sheer, J. F. Zhou, M. Herbert, K. Lübelsmeyer, Piero Spillantini, P. A. Piroué, G. Viertel, A. Kunin, P. Duinker, M. MacDermott, Z. W. Yin, S. N. Ganguli, H. van der Graaf, C. Rippich, B. L. Betev, A. Degré, Giovanni Paternoster, J. Bao, U. Uwer, D. Kaplan, A. Contin, Alexander Savin, G. Morand, M. Elkacimi, P. Extermann, I. Leedom, H. Hofer, K. L. Tung, R. Morand, Z. L. Xue, Howard A. Stone, D. Pandoulas, J. Salicio, T.S. Dai, Y. H. Chang, George Alverson, T. Spickermann, S. Kwan, Ren-Yuan Zhu, Luciano Barone, Vineet Kumar, M. Guanziroli, R. Magahiz, G.G.G. Massaro, F. Carbonara, F.C. Erné, Q.Y. Yang, L. Martinez, A. Gurtu, F. L. Linde, V. Commichau, A. Böhm, G. Coignet, E. Shumilov, J. Zoll, M. Bocciolini, J. H. Field, M. Schöntag, W. Böhlen, V. Shoutko, Luciano Romero, C. F. He, Giorgio Gratta, A. Pevsner, M. Tonutti, Barry Blumenfeld, L. Antonov, A. Marchionni, V.R. Krastev, E. Gonzalez, B. Ille, S. Lanzano, Bernardo Adeva, R. W. Kraemer, V. Khoze, C-Q. Li, R. Bizzarri, S. Hancke, F. DeNotaristefani, P. Berges, M. Maire, L. Li, D. Boutigny, J.F. Li, H. Suter, Y.F. Wang, U. Micke, D. Linnhofer, R. Mount, W.D. Nowak, J. Berdugo, B. Monteleoni, W. Kittel, G. Chiefari, S. Shevchenko, M. Schneegans, R. Schulte, Zhuoxiang Ren, J. M. You, N. Produit, A. A. Syed, K. Lanius, F. Crijns, Marcel Merk, J. Perrier, C. Zabounidis, D. Goujon, Bz Yang, A. Sopczak, X. Leytens, H. Anderhub, C. Dionisi, Alain Hervé, G. Mirabelli, A. Bay, D. Campana, Carlo Civinini, M. Maolinbay, X.G. Li, M. Aguilar-Benitez, I. Duran, P. F. Klok, Herwig Schopper, M. White, Petr Levchenko, F. Wittgenstein, E. Drago, L. Niessen, Z.Y. Lin, T. Driever, M. Harris, E. Dénes, B. P. Roe, W.G. Ma, E. Nagy, M. Vivargent, Christine Buisson, Z. M. Wang, A. Arefiev, Laboratoire d'Annecy de Physique des Particules (LAPP), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), Institut de Physique Nucléaire de Lyon (IPNL), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), L3, IHEF (IoP, FNWI), B., Adeva, O., Adriani, M., Aguilarbenitez, H., Akbari, J., Alcaraz, Aloisio, Alberto, G., Alverson, Alviggi, Mariagrazia, Q., An, H., Anderhub, A. L., Anderson, V. P., Andreev, T., Angelov, L., Antonov, D., Antreasyan, A., Arefiev, T., Azemoon, T., Aziz, P. V., K., P., Bagnaia, J. A., Bakken, L., Baksay, R. C., Ball, S., Banerjee, J., Bao, L., Barone, A., Bay, U., Becker, S., Beingessner, G. L., Bencze, J., Berdugo, P., Berge, B., Bertucci, B. L., Betev, A., Biland, R., Bizzarri, J. J., Blaising, P., Blomeke, B., Blumenfeld, G. J., Bobbink, M., Bocciolini, W., Bohlen, A., Bohm, T., Bohringer, B., Borgia, D., Bourilkov, M., Bourquin, D., Boutigny, J. G., Branson, I. C., Brock, F., Bruyant, C., Buisson, J. D., Burger, J. P., Burq, X. D., Cai, D., Campana, C., Camp, M., Capell, F., Carbonara, F., Carminati, A. M., Cartacci, M., Cerrada, F., Cesaroni, Y. H., Chang, U. K., Chaturvedi, M., Chemarin, A., Chen, C., Chen, G. M., Chen, H. F., Chen, H. S., Chen, M., Chen, M. L., Chen, Chiefari, Giovanni, C. Y., Chien, C., Civinini, I., Clare, R., Clare, G., Coignet, N., Colino, V., Commichau, G., Conforto, A., Contin, F., Crijn, X. Y., Cui, T. S., Dai, R., Dalessandro, A., Degre, K., Deiter, E., Dene, P., Dene, F., Denotaristefani, M., Dhina, M., Diemoz, H. R., Dimitrov, C., Dionisi, F., Dittu, R., Dolin, E., Drago, T., Driever, P., Duinker, I., Duran, M., Elkacimi, A., Engler, F. J., Eppling, F. C., Erne, P., Extermann, R., Fabbretti, G., Faber, S., Falciano, S. J., Fan, M., Fabre, J., Fay, J., Fehlmann, H., Fenker, T., Ferguson, G., Fernandez, F., Ferroni, H., Fesefeldt, J., Field, G., Forconi, T., Foreman, K., Freudenreich, W., Friebel, M., Fukushima, M., Gailloud, Y., Galaktionov, E., Gallo, S. N., Ganguli, S. S., Gau, S., Gentile, M., Gettner, M., Glaubman, S., Goldfarb, Z. F., Gong, E., Gonzalez, A., Gordeev, P., Gottlicher, D., Goujon, C., Goy, G., Gratta, A., Grime, C., Grinnell, M., Gruenewald, M., Guanziroli, A., Gurtu, D., Gusewell, H., Haan, S., Hancke, K., Hangarter, M., Harri, D., Harting, F. G., Hartje, C. F., He, A., Heavey, T., Hebbeker, M., Hebert, G., Herten, U., Herten, A., Herve, K., Hilger, H., Hofer, L. S., Hsu, G., Hu, G. Q., Hu, B., Ille, M. M., Ilya, V., Innocente, E., Isiksal, E., Jagel, B. N., Jin, L. W., Jone, P., Kaaret, R. A., Khan, Y., Kamyshkov, D., Kaplan, Y., Karyotaki, V., Khoze, D., Kirkby, W., Kittel, A., Klimentov, P. F., Klok, A. C., Konig, O., Kornadt, V., Koutsenko, R. W., Kraemer, T., Kramer, V. R., Krastev, W., Krenz, A., Kuhn, V., Kumar, A., Kunin, S., Kwan, A., Vanlaak, V., Lalieu, G., Landi, K., Laniu, D., Lanske, S., Lanzano, P., Lebrun, P., Lecomte, P., Lecoq, P., Lecoultre, I., Leedom, J. M., Legoff, L., Leistam, R., Leiste, J., Lettry, P. M., Levchenko, X., Leyten, C., Li, H. T., Li, J. F., Li, L., Li, P. J., Li, X. G., Li, J. Y., Liao, R., Liu, Y., Liu, Z. Y., Lin, F. L., Linde, D., Linnhofer, W., Lohmann, S., Loko, E., Longo, Y. S., Lu, J. M., Lubber, K., Lubelsmeyer, C., Luci, D., Luckey, L., Ludovici, X., Lue, L., Luminari, W. G., Ma, M., Macdermott, R., Magahiz, M., Maire, P. K., Malhotra, A., Malinin, C., Mana, D. N., Mao, Y. F., Mao, M., Maolinbay, P., Marchesini, A., Marchionni, J. P., Martin, L., Martinez, F., Marzano, G. G., G., T., Matsuda, K., Mazumdar, P., Mcbride, T., Meinholz, M., Merk, Merola, Leonardo, M., Meschini, W. J., Metzger, Y., Mi, M., Micke, U., Micke, G. B., Mill, Y., Mir, G., Mirabelli, J., Mnich, L., Montanet, B., Monteleoni, G., Morand, R., Morand, S., Morganti, V., Morgunov, R., Mount, E., Nagy, Napolitano, Marco, H., Newman, L., Niessen, W. D., Nowak, J., Onvlee, D., Pandoula, Paternoster, Giovanni, Patricelli, Sergio, Y. J., Pei, Y., Peng, D., Perretgallix, J., Perrier, E., Perrin, A., Pevsner, M., Pieri, P. A., Piroue, V., Plyaskin, M., Pohl, V., Pojidaev, C. L., A., N., Produit, J. M., Qian, K. N., Qureshi, R., Raghavan, G., Rahalcallot, J., Vonrango, P., Razi, K., Read, D., Ren, Z., Ren, S., Reucroft, T., Riemann, C., Rippich, S., Rodriguez, B. P., Roe, M., Rohner, T., Rombach, L., Romero, J., Rose, S., Rosierlee, P., Rosselet, J. A., Rubio, W., Ruckstuhl, H., Rykaczewski, M., Sachwitz, J., Salicio, G., Sauvage, A., Savin, V., Schegelsky, P., Schmitt, D., Schmitz, P., Schmitz, M., Schneegan, M., Schontag, H., Schopper, D. J., Schotanu, H. J., Schreiber, R., Schulte, S., Schulte, K., Schultze, J., Schutte, J., Schwenke, G., Schwering, Sciacca, Crisostomo, P. G., Seiler, J. C., Sen, I., Sheer, V., Shevchenko, S., Shevchenko, X. R., Shi, K., Shmakov, V., Shoutko, E., Shumilov, N., Smirnov, A., Sopczak, C., Souyri, T., Spickermann, B., Spie, P., Spillantini, R., Starosta, M., Steuer, D. P., Stickland, B., Stohr, H., Stone, K., Strauch, K., Sudhakar, G., Sultanov, R. L., Sumner, H., Suter, R. B., Sutton, A. A., Syed, X. W., Tang, E., Tarkovsky, J. M., Thenard, E., Thoma, C., Timmerman, S. C., C., S. M., Ting, Y. P., Tong, M., Tonutti, S. C., Tonwar, J., Toth, K. L., Tung, J., Ulbricht, L., Urban, U., Uwer, E., Valente, R. T., Vandewalle, H., Vandergraaf, I., Vetlitsky, G., Viertel, P., Vika, M., Vivargent, H., Vogel, H., Vogt, M., Vollmar, G., Vondardel, I., Vorobiev, A. A., Vorobyov, A., Vorobyov, L., Vuilleumier, W., Walk, W., Wallraff, C. R., Wang, G. H., Wang, J. H., Wang, Q. F., Wang, X. L., Wang, Y. F., Wang, Z. M., Wang, J., Weber, R., Weill, T. J., Wenau, J., Wenninger, M., White, R., Wilhelm, C., Willmott, F., Wittgenstein, D., Wright, R. J., Wu, S. L., Wu, S. X., Wu, Y. G., Wu, B., Wyslouch, Z. Z., Xu, Z. L., Xue, D. S., Yan, B. Z., Yang, C. G., Yang, G., Yang, K. S., Yang, Q. Y., Yang, Z. Q., Yang, Q., Ye, C. H., Ye, S. C., Yeh, Z. W., Yin, J. M., You, C., Zabounidi, L., Zehnder, M., Zeng, Y., Zeng, D., Zhang, D. H., Zhang, S. Y., Zhang, Z. P., Zhang, J. F., Zhou, R. Y., Zhu, A., Zichichi, and J., Zoll

Subjects
Physics, Coupling constant, Nuclear and High Energy Physics, Particle physics, 010308 nuclear & particles physics, media_common.quotation_subject, Electron–positron annihilation, Detector, Charge (physics), 01 natural sciences, Asymmetry, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], Atomic physics, 010306 general physics, Pseudovector, Particle Physics - Experiment, media_common, Lepton
Abstract

We have measured the partial widths of the Z 0 into lepton pairs, and the forward-backward charge asymmetry for the process e + e − → μ + μ − using the L3 detector at LEP. We obtain an average Γ ll of 83.0±2.1±1.1 MeV.From this result and the asymmetry measurement, we extract the values of the vector and axial vector couplings of the Z 0 to leptons: g rmv =−0.066 −0.027 +0.046 and g rmA = −0.495 −0.007 +0.007 .

Published
1990

34. SEARCH FOR ANOMALOUS PRODUCTION OF SINGLE-PHOTON EVENTS IN E+E- ANNIHILATIONS AT THE Z RESONANCE

Author

Y. J. Pei, G. Schwering, W. Y. Chen, B. Zhou, Sc Yeh, D.N. Mao, Adrian Biland, L. Romero, Wt Lin, Roberto Battiston, A. Nippe, R. L. Summer, M. Möller, M. Bourquin, K. Strauch, S. J. Fan, D. Duchesneau, Pierluigi Paolucci, M. Gailloud, Gerjan Bobbink, N. Yunus, S. X. Wu, H. F. Chen, Elemer Nagy, A. Engler, X. L. Wang, R. Weill, Helmut Vogel, M. Lenti, S. S. Gau, T. J. Wenaus, A. L. Anderson, F. Marion, M. MacDermott, Ying Wu, J. F. Zhou, Igor Vorobiev, M. A. Niaz, G. Gratta, B. Borgia, P.V.K.S. Baba, R.B. Sutton, D. DiBitonto, M. Hebert, Ph. Rosselet, P. Extermann, X. R. Shi, Felicitas Pauss, J. Ulbricht, M. Vivargent, M. Sachwitz, Panos A Razis, J. C. Sens, I. Leedom, B. Z. Yang, H. Hofer, K. L. Tung, H. L. Zhuang, S. Beingessner, M. Bocciolini, Egidio Longo, S. Röhner, F. Wittgenstein, G. Chiefari, S. Shevchenko, F. Behner, M. M. Ilyas, H. S. Fesefeldt, M. Steuer, Kajari Mazumdar, G. Forconi, J. Weber, Y. G. Kim, A. M. Cartacci, R. Raghavan, A. C. König, S. Rosier-Lees, D. Linnhofer, P. Le Coultre, Yu. Galaktionov, Federico Carminati, J. Mnich, Andrea Baschirotto, S. Khokhar, T.R. McMahon, X. J. Yan, S. Müller, U. Herten, Y. H. Chang, Stéphane Jézéquel, A. Rubbia, R. Malik, Laurent Vuilleumier, L. Ludovici, M. Chmeissani, E. Drago, G. Terzi, P. Vikas, T. Foreman, J. Alcaraz, George Alverson, M. T. Choi, I. Clare, Xd Cai, Simonetta Gentile, Francesca Nessi-Tedaldi, J. Busenitz, J. Berdugo, K. Hangarter, G. M. Bilei, J. M. Lubbers, R. Barillère, G. Tsipolitis, H. Kuijten, J. D. Burger, Z.Q. Yang, J. Bao, J. S. Kapustinsky, A. Marin, T. Driever, N. Scholz, G. H. Wang, D. Antreasyan, P. Göttlicher, J. K. Kim, R. Starosta, Zhuoxiang Ren, Qi An, M. Wadhwa, W. Riemers, G. Rahal-Callot, Cheng Chen, D.W. Schmitz, G.G.G. Massaro, K. Schultze, D. Luckey, M. N. Kienzle-Focacci, Andrea Contin, Gy L. Bencze, R. Rosmalen, M. Guanziroli, D. J. Schotanus, Claudio Luci, Reinhard W. Schulte, J. Wenninger, L. Antonov, V. Pojidaev, H. Suter, J. M. You, D. Pandoulas, Steven Ahlen, N. Produit, V. R. Krastev, H. Janssen, W. J. Burger, K.S. Yang, K. Sudhakar, F. C. Erné, P. Kapinos, Maurizio Biasini, Marta Felcini, P. Duinker, G. A. Yang, C. Zaccardelli, W. W. Kinnison, M. Fukushima, H. R. Dimitrov, O. Fackler, D. Lanske, M. S. Sarakinos, L. Urbán, M. Caria, J. P. Martin, A. Klimentov, A. Koulbardis, S. Patricelli, F. Ferroni, J.H. Wang, Dong-Chul Son, T. Kramer, S. C. Tonwar, J. J. Blaising, A. A. Syed, Stefano Giagu, A. Krivshich, Y. Zeng, Frank Filthaut, J. B. Ye, M. Boseti, M. Rescigno, B.C. Stringfellow, Robert Clare, Francesco Becattini, M. Capell, E. Shumilov, Kenneth Francis Read, Q. Ye, A. Tsaregorodtsev, Zhongyukun Xu, P. K. Malhotra, H. A. Rizvi, A. Kunin, Hafeez R Hoorani, A. Nadtochy, Thomas Hebbeker, Paul Lecoq, R. W. Kraemer, L. Z. Sun, S. Schulte, Thomas Ferguson, R. Leiste, V. Shoutko, M. Napolitano, V. Koutsenko, R.J. Wu, D. P. Stickland, W. Friebel, K. N. Qureshi, S. Goldfarb, T. Spickermann, B. Monteleoni, M. Yzerman, Y. Mir, C. H. Ye, Mariagrazia Alviggi, Gerard Fernandez, M. Tonutti, Raffaello D'Alessandro, C. Grinnell, Leonardo Merola, S. N. Ganguli, E. Gonzalez, J. M. Le Goff, D. H. Wright, G. S. Sanders, P. G. Seiler, J. A. Rubio, F. Sticozzi, F. Cesaroni, C. Spartiotis, D. Hauschildt, K. Deiters, W. Kittel, D. Z. Shen, M.L. Chen, Jozsef Toth, J. Lettry, Elisabetta Gallo, F. Plasil, Mingshui Chen, B. L. Betev, F. Crijns, Jun Guo, B. Lindemann, G. Finocchiaro, Marcel Merk, A. Gougas, I. Vetlitsky, J. Perrier, Dimitri Bourilkov, E. Dénes, R. Sehgal, S. Lanzano, T. Azemoon, J. Y. Liao, C-Q. Li, Marco Meschini, R. Morand, Z. L. Xue, D. Kirkby, Christopher George Tully, M. Pauluzzi, H. El Mamouni, J. A. Bakken, Roberto Castello, T. Angelov, M. Sassowsky, Jianming Qian, Chenliang Wang, G. Hu, W. J. Metzger, N. E. Moulai, Wolfgang Lohmann, E. Fiandrini, T. Paul, Howard A. Stone, Emilio Leonardi, V. K. Gupta, Marcos Cerrada, E. Soderstrom, H. S. Chen, L. Servoli, G. Landi, M. L. Brooks, Marcella Diemoz, R. Bock, Y. Mi, B. P. Roe, H. Vogt, B. Bertucci, P. Schmitz, O. Rind, S. Reucroft, D. Ren, S. C. Kim, R. Fabbretti, F. L. Linde, Yuehong Xie, Nicanor Colino, Christine Buisson, Y. F. Wang, Bernard Ille, L. Baksay, R. Bizzarri, J. Shukla, Gianpaolo Carlino, S. Easo, S. Pensotti, Valery Schegelsky, Antonino Zichichi, U. Vikas, K. Freudenreich, Ph Fisher, H. Rykaczewski, S. Shotkin, M. Fabre, V. Plyaskin, M. Schneegans, F. DeNotaristefani, Simone Paoletti, Carlos Willmott, G. Sauvage, D. M. Lee, Z. M. Wang, J. D. Swain, Speranza Falciano, P. Arce, D. Goujon, J. M. Ma, A. Bujak, Giovanni Organtini, Oliver Kornadt, M. Pohl, Y. Karyotakis, J. M. Salicio, Luca Lista, D. Fernandez, Pablo Garcia-Abia, A. Kasser, Guofan Hu, Georgi Sultanov, T. S. Dai, R. A. Khan, M. T. Dova, Ren-Yuan Zhu, Luciano Barone, Alain Hervé, P. McBride, Harvey B Newman, A. Bay, R. Mount, Manjit Kaur, C. Dionisi, C. Maña, H. T. Li, I. C. Brock, H. O. Cohn, Yanwen Liu, S. Chung, T. E. Coan, J. G. Branson, K. Hilgers, P. Berges, Vincenzo Innocente, Carlo Civinini, E. Valente, V. P. Andreev, Attilio Santocchia, Jean Fay, M. Dhina, D. Boutigny, Q.Y. Yang, M. Maolinbay, G. Raven, A. Gurtu, Els Koffeman, Daqiang Zhang, X.G. Li, Davide Piccolo, Z. W. Yin, M. Chemarin, Sabine Riemann, X. T. Cui, G. M. Chen, Z. F. Gong, A. Degré, M. Aguilar-Benitez, D. McNally, H. J. Schreiber, Peter Denes, Herwig Schopper, M. Rattaggi, M. White, Z. Y. Lin, Paolo Bagnaia, Giovanni Ambrosi, E. Brambilla, X. Leytens, G. Viertel, Bolek Wyslouch, A. Sopczak, A. Hasan, S. Morganti, J. Schwenke, X. Y. Cui, Chenjie Gu, C. F. He, L. Martinez-Laso, Lamberto Luminari, Jiunn-Wei Chen, A. Atamanchuk, P. Marchesini, H. Anderhub, Y. D. Xu, Ming Zeng, M. Röhner, A. Pevsner, Y.F. Mao, R. T. Van de Walle, I. Scott, U. K. Chaturvedi, Y. S. Lu, A. Malinin, Z.P. Zhang, Jérôme Rose, J. H. Field, C. Y. Chien, P. Zemp, R. de Asmundis, R. C. Ball, Pierre Lecomte, J. Behrens, P. J. Li, P. Lebrun, G. Sartorelli, BT Bouwens, U. Uwer, Werner Lustermann, Charles Timmermans, A. Chen, J. Salicio, A. C. Weber, G. Mirabelli, K. Lübelsmeyer, Piero Spillantini, D. Perret-Gallix, A. Arefiev, K. Riles, F. Marzano, G. Coignet, W. Krenz, Samuel C.C. Ting, G. Passaleva, D. Gele, L. J. Gutay, U. Becker, I. Duran, F. J. Eppling, L. W. Jones, D. S. Yan, S. M. Ting, Tariq Aziz, Crisostomo Sciacca, Marco Pieri, Wen-Gan Ma, Alberto Aloisio, A. Ricker, X. W. Tang, I. Sheer, A. Böhn, P. A. Piroué, B. C.C. van der Zwaan, C. Neyer, P. G. Rancoita, B. N. Jin, H. Nowak, W. Wallraff, S. Banerjee, Yu. Kamyshkov, Mw Gruenewald, G. B. Mills, C. G. Yang, K. S. Kumar, Stefan Kirsch, F. J. Rodriguez, H. R. Gustafson, An.A. Vorobyov, T. Matsuda, O. Adriani, Lucas Taylor, Laboratoire d'Annecy de Physique des Particules (LAPP), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), Institut de Physique Nucléaire de Lyon (IPNL), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), CMS, Institut de Physique des 2 Infinis de Lyon (IP2I Lyon), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS), L3, IHEF (IoP, FNWI), O., Adriani, M., Aguilarbenitez, S., Ahlen, J., Alcaraz, Aloisio, Alberto, G., Alverson, Alviggi, Mariagrazia, G., Ambrosi, Q., An, H., Anderhub, A. L., Anderson, V. P., Andreev, T., Angelov, L., Antonov, D., Antreasyan, P., Arce, A., Arefiev, A., Atamanchuk, T., Azemoon, T., Aziz, P. V., K., P., Bagnaia, J. A., Bakken, L., Baksay, R. C., Ball, S., Banerjee, J., Bao, R., Barillere, L., Barone, A., Baschirotto, R., Battiston, A., Bay, F., Becattini, U., Becker, F., Behner, J., Behren, S., Beingessner, G. L., Bencze, J., Berdugo, P., Berge, B., Bertucci, B. L., Betev, M., Biasini, A., Biland, G. M., Bilei, R., Bizzarri, J. J., Blaising, G. J., Bobbink, M., Bocciolini, R., Bock, A., Bohm, B., Borgia, M., Boseti, D., Bourilkov, M., Bourquin, D., Boutigny, B., Bouwen, E., Brambilla, J. G., Branson, I. C., Brock, M., Brook, C., Buisson, A., Bujak, J. D., Burger, W. J., Burger, J., Busenitz, X. D., Cai, M., Capell, M., Caria, G., Carlino, F., Carminati, A. M., Cartacci, R., Castello, M., Cerrada, F., Cesaroni, Y. H., Chang, U. K., Chaturvedi, M., Chemarin, A., Chen, C., Chen, G. M., Chen, H. F., Chen, H. S., Chen, J., Chen, M., Chen, M. L., Chem, W. Y., Chen, Chiefari, Giovanni, C. Y., Chien, M., Chmeissani, M. T., Choi, S., Chung, C., Civinini, I., Clare, R., Clare, T. E., Coan, H. O., Cohn, G., Coignet, N., Colino, A., Contin, F., Crijn, X. T., Cui, X. Y., Cui, T. S., Dai, R., Dalessandro, R., Deasmundi, A., Degre, K., Deiter, E., Dene, P., Dene, F., Denotaristefani, M., Dhina, D., Dibitonto, M., Diemoz, H. R., Dimitrov, C., Dionisi, M. T., Dova, E., Drago, T., Driever, D., Duchesneau, P., Duinker, I., Duran, S., Easo, H., Elmamouni, A., Engler, F. J., Eppling, F. C., Erne, P., Extermann, R., Fabbretti, M., Fabre, S., Falciano, S. J., Fan, O., Fackler, J., Fay, M., Felcini, T., Ferguson, D., Fernandez, G., Fernandez, F., Ferroni, H., Fesefeldt, E., Fiandrini, J., Field, F., Filthaut, G., Finocchiaro, P. H., Fisher, G., Forconi, T., Foreman, K., Freudenreich, W., Friebel, M., Fukushima, M., Gailloud, Y., Galaktionov, E., Gallo, S. N., Ganguli, P., Garciaabia, S. S., Gau, D., Gele, S., Gentile, S., Giagu, S., Goldfarb, Z. F., Gong, E., Gonzalez, P., Gottlicher, A., Gouga, D., Goujon, G., Gratta, C., Grinnell, M., Gruenewald, C., Gu, M., Guanziroli, J. K., Guo, V. K., Gupta, A., Gurtu, H. R., Gustafson, L. J., Gutay, K., Hangarter, A., Hasan, D., Hauschildt, C. F., He, T., Hebbeker, M., Hebert, U., Herten, A., Herve, K., Hilger, H., Hofer, H., Hoorani, G., Hu, G. Q., Hu, B., Ille, M. M., Ilya, V., Innocente, H., Janssen, S., Jezequel, B. N., Jin, L. W., Jone, A., Kasser, R. A., Khan, Y., Kamyshkov, P., Kapino, J. S., Kapustinsky, Y., Karyotaki, M., Kaur, S., Khokhar, M. N., Kienzlefocacci, J. K., Kim, S. C., Kim, Y. G., Kim, W. W., Kinnison, D., Kirkby, S., Kirsch, W., Kittel, A., Klimentov, A. C., Konig, E., Koffeman, O., Kornadt, V., Koutsenko, A., Koulbardi, R. W., Kraemer, T., Kramer, V. R., Krastev, W., Krenz, A., Krivshich, H., Kuijten, K. S., Kumar, A., Kunin, G., Landi, D., Lanske, S., Lanzano, P., Lebrun, P., Lecomte, P., Lecoq, P., Lecoultre, D. M., Lee, I., Leedom, J. M., Legoff, R., Leiste, M., Lenti, E., Leonardi, J., Lettry, X., Leyten, C., Li, H. T., Li, P. J., Li, X. G., Li, J. Y., Liao, W. T., Lin, Z. Y., Lin, F. L., Linde, B., Lindemann, D., Linnhofer, L., Lista, Y., Liu, W., Lohmann, E., Longo, Y. S., Lu, J. M., Lubber, K., Lubelsmeyer, C., Luci, D., Luckey, L., Ludovici, L., Luminari, W., Lustermann, J. M., Ma, W. G., Ma, M., Macdermott, P. K., Malhotra, R., Malik, A., Malinin, C., Mana, D. N., Mao, Y. F., Mao, M., Maolinbay, P., Marchesini, F., Marion, A., Marin, J. P., Martin, L., Martinezlaso, F., Marzano, G. G., G., T., Matsuda, K., Mazumdar, P., Mcbride, T., Mcmahon, D., Mcnally, M., Merk, Merola, Leonardo, M., Meschini, W. J., Metzger, Y., Mi, G. B., Mill, Y., Mir, G., Mirabelli, J., Mnich, M., Moller, B., Monteleoni, R., Morand, S., Morganti, N. E., Moulai, R., Mount, S., Muller, A., Nadtochy, E., Nagy, Napolitano, Marco, F., Nessitedaldi, H., Newman, C., Neyer, M. A., Niaz, A., Nippe, H., Nowak, G., Organtini, D., Pandoula, S., Paoletti, P., Paolucci, G., Passaleva, Patricelli, Sergio, T., Paul, M., Pauluzzi, F., Pau, Y. J., Pei, S., Pensotti, D., Perretgallix, J., Perrier, A., Pevsner, D., Piccolo, M., Pieri, P. A., Piroue, F., Plasil, V., Plyaskin, M., Pohl, V., Pojidaev, N., Produit, J. M., Qian, K. N., Qureshi, R., Raghavan, G., Rahalcallot, P. G., Rancoita, M., Rattaggi, G., Raven, P., Razi, K., Read, D., Ren, Z., Ren, M., Rescigno, S., Reucroft, A., Ricker, S., Riemann, W., Riemer, K., Rile, O., Rind, H. A., Rizvi, F. J., Rodriguez, B. P., Roe, M., Rohner, S., Rohner, L., Romero, J., Rose, S., Rosierlee, R., Rosmalen, P., Rosselet, A., Rubbia, J. A., Rubio, H., Rykaczewski, M., Sachwitz, J., Salicio, J. M., Salicio, G. S., Sander, A., Santocchia, M. S., Sarakino, G., Sartorelli, M., Sassowsky, G., Sauvage, V., Schegelsky, D., Schmitz, P., Schmitz, M., Schneegan, N., Scholz, H., Schopper, D. J., Schotanu, H. J., Schreiber, R., Schulte, S., Schulte, K., Schultze, J., Schwenke, G., Schwering, Sciacca, Crisostomo, I., Scott, R., Sehgal, P. G., Seiler, J. C., Sen, L., Servoli, I., Sheer, D. Z., Shen, S., Shevchenko, X. R., Shi, S., Shotkin, J., Shukla, E., Shumilov, V., Shoutko, E., Soderstrom, D., Son, A., Sopczak, C., Spartioti, T., Spickermann, P., Spillantini, R., Starosta, M., Steuer, D. P., Stickland, F., Sticozzi, H., Stone, K., Strauch, B. C., Stringfellow, K., Sudhakar, G., Sultanov, R. L., Sumner, L. Z., Sun, H., Suter, R. B., Sutton, J. D., Swain, A. A., Syed, X. W., Tang, L., Taylor, G., Terzi, C., Timmerman, S. C., C., S. M., Ting, M., Tonutti, S. C., Tonwar, J., Toth, A., Tsaregorodtsev, G., Tsipoliti, C., Tully, K. L., Tung, J., Ulbricht, L., Urban, U., Uwer, E., Valente, R. T., Vandewalle, I., Vetlitsky, G., Viertel, P., Vika, U., Vika, M., Vivargent, H., Vogel, H., Vogt, I., Vorobiev, A. A., Vorobyov, L., Vuilleumier, M., Wadhwa, W., Wallraff, C. R., Wang, G. H., Wang, J. H., Wang, X. L., Wang, Y. F., Yang, Z. M., Wang, A., Weber, J., Weber, R., Weill, T. J., Wenau, J., Wenninger, M., White, C., Willmott, F., Wittgenstein, D., Wright, R. J., Wu, S. X., Wu, Y. G., Wu, B., Wyslouch, Y. Y., Xie, Y. D., Xu, Z. Z., Xu, Z. L., Xue, D. S., Yan, X. J., Yan, B. Z., Yang, C. G., Yang, G., Yang, K. S., Yang, Q. Y., Yang, Z. Q., Yang, C. H., Ye, J. B., Ye, Q., Ye, S. C., Yeh, Z. W., Yin, J. M., You, N., Yunu, M., Yzerman, C., Zaccardelli, P., Zemp, M., Zeng, Y., Zeng, D. H., Zhang, Z. P., Zhang, B., Zhou, J. F., Zhou, R. Y., Zhu, H. L., Zhuang, A., Zichichi, B. C., C., and Lista, Luca

Subjects
COLLISIONS, Nuclear and High Energy Physics, Particle physics, Photon, COMPOSITE-Z, Electron–positron annihilation, 01 natural sciences, Resonance (particle physics), Nuclear physics, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], 010306 general physics, GeneralLiterature_REFERENCE(e.g.,dictionaries,encyclopedias,glossaries), Physics, Luminosity (scattering theory), Annihilation, 010308 nuclear & particles physics, Supergravity, Mathematics::History and Overview, COUPLINGS, NEUTRINOS, Gravitino, Neutrino, Z-BOSON, DECAY, Particle Physics - Experiment
Abstract

Using a sample of e+e− annihilation events collected at the Z resonance corresponding to an integrated luminosity of 11.2 pb−1, we have searched for γX final states where X represents stable, weakly interacting particles and the energy of the photon is greater than 1 2 E beam . No events were found. The results have been interpreted within a composite Z model and a supergravity model with a light gravitino.

Published
1992
Full Text
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35. A Direct Determination of the Number of Light Neutrino Families from E+E--]Nu-Nu-Bar-Gamma at Lep

Author

Adeva, B, Adriani, O, Aguilarbenitez, M, Akbari, H, Alcaraz, J, Aloisio, A, Alverson, G, Alviggi, Mg, Ambrosi, G, An, Q, Anderhub, H, Anderson, Al, Andreev, Vp, Angelov, T, Antonov, L, Antreasyan, D, Arce, P, Arefiev, A, Atamanchuk, A, Azemoon, T, Aziz, T, Baba, Pvks, Bagnaia, Paolo, Bakken, Ja, Baksay, L, Ball, Rc, Banerjee, S, Bao, J, Barillere, R, Barone, Luciano Maria, Battiston, R, Bay, A, Becattini, F, Becker, U, Behner, F, Behrens, J, Beingessner, S, Bencze, Gl, Berdugo, J, Berges, P, Bertucci, B, Betev, Bl, Biasini, M, Biland, A, Bilei, Gm, Bizzarri, R, Blaising, Jj, Blomeke, P, Blumenfeld, B, Bobbink, Gj, Bocciolini, M, Bock, R, Bohm, A, Borgia, B, Bourilkov, D, Bourquin, M, Boutigny, D, Bouwens, B, Brambilla, E, Branson, Jg, Brock, Ic, Brooks, M, Bruyant, F, Buisson, C, Bujak, A, Burger, Jd, Burger, Wj, Burq, Jp, Busenitz, J, Cai, Xd, Capell, M, Caria, M, Carminati, F, Cartacci, Am, Cerrada, M, Cesaroni, F, Chang, Yh, Chaturvedi, Uk, Chemarin, M, Chen, A, Chen, C, Chen, Gm, Chen, Hf, Chen, Hs, Chen, J, Chen, M, Chen, Ml, Chen, Wy, Chiefari, G, Chien, Cy, Chmeissani, M, Civinini, C, Clare, I, Clare, R, Coan, Te, Cohn, Ho, Coignet, G, Colino, N, Contin, A, Crijns, F, Cui, Xy, Dai, Ts, Dalessandro, R, Deasmundis, R, Degre, A, Deiters, K, Denes, E, Denes, P, Denotaristefani, F, Dhina, M, Dibitonto, D, Diemoz, M, Dimitrov, Hr, Dionisi, C, Dova, Mt, Drago, E, Driever, T, Duchesneau, D, Duinker, P, Duran, I, Elmamouni, H, Engler, A, Eppling, Fj, Erne, Fc, Extermann, P, Fabbretti, R, Fabre, M, Falciano, S, Fan, Q, Fan, Sj, Fackler, O, Fay, J, Felcini, M, Ferguson, T, Fernandez, D, Fernandez, G, Ferroni, Fernando, Fesefeldt, H, Fiandrini, E, Field, J, Filthaut, F, Finocchiaro, G, Fisher, Ph, Forconi, G, Foreman, T, Freudenreich, K, Friebel, W, Fukushima, M, Gailloud, M, Galaktionov, Y, Gallo, E, Ganguli, Sn, Garciaabia, P, Gau, Ss, Gele, D, Gentile, Simonetta, Goldfarb, S, Gong, Zf, Gonzalez, E, Gordeev, A, Gottlicher, P, Goujon, D, Gratta, G, Grinnell, C, Gruenewald, M, Guanziroli, M, Guo, Jk, Gurtu, A, Gustafson, Hr, Gutay, Lj, Hangarter, K, Hasan, A, Hauschildt, D, He, Cf, Hebbeker, T, Hebert, M, Herten, G, Herten, U, Herve, A, Hilgers, K, Hofer, H, Hoorani, H, Hu, G, Hu, Gq, Ille, B, Ilyas, Mm, Innocente, V, Janssen, H, Jezequel, S, Jin, Bn, Jones, Lw, Kasser, A, Khan, Ra, Kamyshkov, Y, Kapinos, P, Kapustinsky, Js, Karyotakis, Y, Kaur, M, Khokhar, S, Kienzlefocacci, Mn, Kinnison, Ww, Kirkby, D, Kirsch, S, Kittel, W, Klimentov, A, Konig, Ac, Kornadt, O, Koutsenko, V, Koulbardis, A, Kraemer, Rw, Kramer, T, Krastev, Vr, Krenz, W, Krivshich, A, Krizmanic, J, Kumar, Ks, Kumar, V, Kunin, A, Landi, G, Lanius, K, Lanske, D, Lanzano, S, Lebrun, P, Lecomte, P, Lecoq, P, Lecoultre, P, Lee, Dm, Leedom, I, Legoff, Jm, Leistam, L, Leiste, R, Lenti, M, Leonardi, E, Lettry, J, Leytens, X, Li, C, Li, Ht, Li, Jf, Li, Pj, Li, Q, Li, Xg, Liao, Jy, Lin, Wt, Lin, Zy, Linde, Fl, Lindemann, B, Linnhofer, D, Liu, R, Liu, Y, Lohmann, W, Longo, E, Lu, Ys, Lubbers, Jm, Lubelsmeyer, K, Luci, Claudio, Luckey, D, Ludovici, L, Luminari, L, Ma, Wg, Macdermott, M, Malhotra, Pk, Malik, R, Malinin, A, Mana, C, Mao, Dn, Mao, Yf, Maolinbay, M, Marchesini, P, Martin, Jp, Martinezlaso, L, Marzano, F, Massaro, Ggg, Matsuda, T, Mazumdar, K, Mcbride, P, Mcmahon, T, Mcnally, D, Meinholz, T, Merk, M, Merola, L, Meschini, M, Metzger, Wj, Mi, Y, Mills, Gb, Mir, Y, Mirabelli, G, Mnich, J, Moller, M, Monteleoni, B, Morand, R, Morganti, S, Moulai, Ne, Mount, R, Muller, S, Nadtochy, A, Nagy, E, Napolitano, M, Newman, H, Neyer, C, Niaz, Ma, Niessen, L, Nowak, H, Organtini, Giovanni, Pandoulas, D, Pauluzzi, M, Pauss, F, Passaleva, G, Paoletti, S, Patricelli, S, Pei, Yj, Perretgallix, D, Perrier, J, Pevsner, A, Pieri, M, Piroue, Pa, Plasil, F, Plyaskin, V, Pohl, M, Pojidaev, V, Produit, N, Qian, Jm, Qureshi, Kn, Raghavan, R, Rahalcallot, G, Raven, G, Razis, P, Read, K, Ren, D, Ren, Z, Rescigno, M, Reucroft, S, Ricker, A, Riemann, S, Rind, O, Rizvi, Ha, Roe, Bp, Rohner, M, Rohner, S, Romero, L, Rose, J, Rosierlees, S, Rosmalen, R, Rosselet, P, Rubbia, A, Rubio, Ja, Rykaczewski, H, Sachwitz, M, Salicio, J, Salicio, Jm, Sanders, Gs, Santocchia, A, Sarakinos, Ms, Sartorelli, G, Sauvage, G, Savin, A, Schegelsky, V, Schmiemann, K, Schmitz, D, Schmitz, P, Schneegans, M, Schopper, H, Schotanus, Dj, Shotkin, S, Schreiber, Hj, Shukla, J, Schulte, R, Schulte, S, Schultze, K, Schutte, J, Schwenke, J, Schwering, G, Sciacca, C, Scott, I, Sehgal, R, Seiler, Pg, Sens, Jc, Servoli, L, Sheer, I, Shen, Dz, Shevchenko, S, Shi, Xr, Shmakov, K, Shumilov, E, Shoutko, V, Soderstrom, E, Sopczak, A, Spartiotis, C, Spickermann, T, Spillantini, P, Starosta, R, Steuer, M, Stickland, Dp, Sticozzi, F, Stone, H, Strauch, K, Stringfellow, Bc, Sudhakar, K, Sultanov, G, Sumner, Rl, Sun, Lz, Suter, H, Sutton, Rb, Swain, Jd, Syed, Aa, Tang, Xw, Tarkovsky, E, Taylor, L, Timmermans, C, Ting, Scc, Ting, Sm, Tonutti, M, Tonwar, Sc, Toth, J, Tsaregorodtsev, A, Tsipolitis, G, Tully, C, Tung, Kl, Ulbricht, J, Urban, L, Uwer, U, Valente, E, Vandewalle, Rt, Vetlitsky, I, Viertel, G, Vikas, P, Vikas, U, Vivargent, M, Vogel, H, Vogt, H, Vondardel, G, Vorobiev, I, Vorobyov, Aa, Vuilleumier, L, Wadhwa, M, Wallraff, W, Wang, Cr, Wang, Gh, Wang, Jh, Wang, Qf, Wang, Xl, Wang, Yf, Wang, Z, Wang, Zm, Weber, A, Weber, J, Weill, R, Wenaus, Tj, Wenninger, J, White, M, Willmott, C, Wittgenstein, F, Wright, D, Wu, Rj, Wu, Sl, Wu, Sx, Wu, Yg, Wyslouch, B, Xie, Yy, Xu, Yd, Xu, Zz, Xue, Zl, Yan, Ds, Yan, Xj, Yang, Bz, Yang, Cg, Yang, G, Yang, Ks, Yang, Qy, Yang, Zq, Ye, Ch, Ye, Jb, Ye, Q, Yeh, Sc, Yin, Zw, You, Jm, Yzerman, M, Zaccardelli, C, Zemp, P, Zeng, M, Zeng, Y, Zhang, Dh, Zhang, Zp, Zhou, Jf, Zhu, Ry, Zhuang, Hl, Zichichi, A., Longo, Egidio, B., Adeva, O., Adriani, M., Aguilarbenitez, H., Akbari, J., Alcaraz, Aloisio, Alberto, G., Alverson, Alviggi, Mariagrazia, G., Ambrosi, Q., An, H., Anderhub, A. L., Anderson, V. P., Andreev, T., Angelov, L., Antonov, D., Antreasyan, P., Arce, A., Arefiev, A., Atamanchuk, T., Azemoon, T., Aziz, P. V., K., P., Bagnaia, J. A., Bakken, L., Baksay, R. C., Ball, S., Banerjee, J., Bao, R., Barillere, L., Barone, R., Battiston, A., Bay, F., Becattini, U., Becker, F., Behner, J., Behren, S., Beingessner, G. L., Bencze, J., Berdugo, P., Berge, B., Bertucci, B. L., Betev, M., Biasini, A., Biland, G. M., Bilei, R., Bizzarri, J. J., Blaising, P., Blomeke, B., Blumenfeld, G. J., Bobbink, M., Bocciolini, R., Bock, A., Bohm, B., Borgia, D., Bourilkov, M., Bourquin, D., Boutigny, B., Bouwen, E., Brambilla, J. G., Branson, I. C., Brock, M., Brook, F., Bruyant, C., Buisson, A., Bujak, J. D., Burger, W. J., Burger, J. P., Burq, J., Busenitz, X. D., Cai, M., Capell, M., Caria, F., Carminati, A. M., Cartacci, M., Cerrada, F., Cesaroni, Y. H., Chang, U. K., Chaturvedi, M., Chemarin, A., Chen, C., Chen, G. M., Chen, H. F., Chen, H. S., Chen, J., Chen, M., Chen, M. L., Chen, W. Y., Chen, Chiefari, Giovanni, C. Y., Chien, M., Chmeissani, C., Civinini, I., Clare, R., Clare, T. E., Coan, H. O., Cohn, G., Coignet, N., Colino, A., Contin, F., Crijn, X. Y., Cui, T. S., Dai, R., Dalessandro, R., Deasmundi, A., Degre, K., Deiter, E., Dene, P., Dene, F., Denotaristefani, M., Dhina, D., Dibitonto, M., Diemoz, H. R., Dimitrov, C., Dionisi, M. T., Dova, E., Drago, T., Driever, D., Duchesneau, P., Duinker, I., Duran, H., Elmamouni, A., Engler, F. J., Eppling, F. C., Erne, P., Extermann, R., Fabbretti, M., Fabre, S., Falciano, Q., Fan, S. J., Fan, O., Fackler, J., Fay, M., Felcini, T., Ferguson, D., Fernandez, G., Fernandez, F., Ferroni, H., Fesefeldt, E., Fiandrini, J., Field, F., Filthaut, G., Finocchiaro, P. H., Fisher, G., Forconi, T., Foreman, K., Freudenreich, W., Friebel, M., Fukushima, M., Gailloud, Y., Galaktionov, E., Gallo, S. N., Ganguli, P., Garciaabia, S. S., Gau, D., Gele, S., Gentile, S., Goldfarb, Z. F., Gong, E., Gonzalez, A., Gordeev, P., Gottlicher, D., Goujon, G., Gratta, C., Grinnell, M., Gruenewald, M., Guanziroli, J. K., Guo, A., Gurtu, H. R., Gustafson, L. J., Gutay, K., Hangarter, A., Hasan, D., Hauschildt, C. F., He, T., Hebbeker, M., Hebert, G., Herten, U., Herten, A., Herve, K., Hilger, H., Hofer, H., Hoorani, G., Hu, G. Q., Hu, B., Ille, M. M., Ilya, V., Innocente, H., Janssen, S., Jezequel, B. N., Jin, L. W., Jone, A., Kasser, R. A., Khan, Y., Kamyshkov, P., Kapino, J. S., Kapustinsky, Y., Karyotaki, M., Kaur, S., Khokhar, M. N., Kienzlefocacci, W. W., Kinnison, D., Kirkby, S., Kirsch, W., Kittel, A., Klimentov, A. C., Konig, O., Kornadt, V., Koutsenko, A., Koulbardi, R. W., Kraemer, T., Kramer, V. R., Krastev, W., Krenz, A., Krivshich, J., Krizmanic, K. S., Kumar, V., Kumar, A., Kunin, G., Landi, K., Laniu, D., Lanske, S., Lanzano, P., Lebrun, P., Lecomte, P., Lecoq, P., Lecoultre, D. M., Lee, I., Leedom, J. M., Legoff, L., Leistam, R., Leiste, M., Lenti, E., Leonardi, J., Lettry, X., Leyten, C., Li, H. T., Li, J. F., Li, P. J., Li, Q., Li, X. G., Li, J. Y., Liao, W. T., Lin, Z. Y., Lin, F. L., Linde, B., Lindemann, D., Linnhofer, R., Liu, Y., Liu, W., Lohmann, E., Longo, Y. S., Lu, J. M., Lubber, K., Lubelsmeyer, C., Luci, D., Luckey, L., Ludovici, L., Luminari, W. G., Ma, M., Macdermott, P. K., Malhotra, R., Malik, A., Malinin, C., Mana, D. N., Mao, Y. F., Mao, M., Maolinbay, P., Marchesini, J. P., Martin, L., Martinezlaso, F., Marzano, G. G., G., T., Matsuda, K., Mazumdar, P., Mcbride, T., Mcmahon, D., Mcnally, T., Meinholz, M., Merk, Merola, Leonardo, M., Meschini, W. J., Metzger, Y., Mi, G. B., Mill, Y., Mir, G., Mirabelli, J., Mnich, M., Moller, B., Monteleoni, R., Morand, S., Morganti, N. E., Moulai, R., Mount, S., Muller, A., Nadtochy, E., Nagy, Napolitano, Marco, H., Newman, C., Neyer, M. A., Niaz, L., Niessen, H., Nowak, G., Organtini, D., Pandoula, M., Pauluzzi, F., Pau, G., Passaleva, S., Paoletti, Patricelli, Sergio, Y. J., Pei, D., Perretgallix, J., Perrier, A., Pevsner, M., Pieri, P. A., Piroue, F., Plasil, V., Plyaskin, M., Pohl, V., Pojidaev, N., Produit, J. M., Qian, K. N., Qureshi, R., Raghavan, G., Rahalcallot, G., Raven, P., Razi, K., Read, D., Ren, Z., Ren, M., Rescigno, S., Reucroft, A., Ricker, S., Riemann, O., Rind, H. A., Rizvi, B. P., Roe, M., Rohner, S., Rohner, L., Romero, J., Rose, S., Rosierlee, R., Rosmalen, P., Rosselet, A., Rubbia, J. A., Rubio, H., Rykaczewski, M., Sachwitz, J., Salicio, J. M., Salicio, G. S., Sander, A., Santocchia, M. S., Sarakino, G., Sartorelli, G., Sauvage, A., Savin, V., Schegelsky, K., Schmiemann, D., Schmitz, P., Schmitz, M., Schneegan, H., Schopper, D. J., Schotanu, S., Shotkin, H. J., Schreiber, J., Shukla, R., Schulte, S., Schulte, K., Schultze, J., Schutte, J., Schwenke, G., Schwering, Sciacca, Crisostomo, I., Scott, R., Sehgal, P. G., Seiler, J. C., Sen, L., Servoli, I., Sheer, D. Z., Shen, S., Shevchenko, X. R., Shi, K., Shmakov, E., Shumilov, V., Shoutko, E., Soderstrom, A., Sopczak, C., Spartioti, T., Spickermann, P., Spillantini, R., Starosta, M., Steuer, D. P., Stickland, F., Sticozzi, H., Stone, K., Strauch, B. C., Stringfellow, K., Sudhakar, G., Sultanov, R. L., Sumner, L. Z., Sun, H., Suter, R. B., Sutton, J. D., Swain, A. A., Syed, X. W., Tang, E., Tarkovsky, L., Taylor, C., Timmerman, S. C., C., S. M., Ting, M., Tonutti, S. C., Tonwar, J., Toth, A., Tsaregorodtsev, G., Tsipoliti, C., Tully, K. L., Tung, J., Ulbricht, L., Urban, U., Uwer, E., Valente, R. T., Vandewalle, I., Vetlitsky, G., Viertel, P., Vika, U., Vika, M., Vivargent, H., Vogel, H., Vogt, G., Vondardel, I., Vorobiev, A. A., Vorobyov, L., Vuilleumier, M., Wadhwa, W., Wallraff, C. R., Wang, G. H., Wang, J. H., Wang, Q. F., Wang, X. L., Wang, Y. F., Wang, Z., Wang, Z. M., Wang, A., Weber, J., Weber, R., Weill, T. J., Wenau, J., Wenninger, M., White, C., Willmott, F., Wittgenstein, D., Wright, R. J., Wu, S. L., Wu, S. X., Wu, Y. G., Wu, B., Wyslouch, Y. Y., Xie, Y. D., Xu, Z. Z., Xu, Z. L., Xue, D. S., Yan, X. J., Yan, B. Z., Yang, C. G., Yang, G., Yang, K. S., Yang, Q. Y., Yang, Z. Q., Yang, C. H., Ye, J. B., Ye, Q., Ye, S. C., Yeh, Z. W., Yin, J. M., You, M., Yzerman, C., Zaccardelli, P., Zemp, M., Zeng, Y., Zeng, D. H., Zhang, Z. P., Zhang, J. F., Zhou, R. Y., Zhu, H. L., Zhuang, and A., Zichichi

Subjects
SINGLE PHOTONS, SUPERSYMMETRIC PARTICLES, Physics::Instrumentation and Detectors, SEARCH, SCATTERING, High Energy Physics::Experiment, E+E COLLISIONS, Astrophysics::Cosmology and Extragalactic Astrophysics, ANNIHILATION, GeneralLiterature_REFERENCE(e.g.,dictionaries,encyclopedias,glossaries)
Abstract

The L3 detector at LEP has been used to determine the number of light neutrino families by measuring the cross section of single photon even in e+e- collisions at energies near the Z0 resonance. We have observed 61 single photon candidates with more than 1.5 GeV of deposited energy in the barrel electromagnetic calorimeter, for a total integrated luminosity of 3.0 pb-1. From a likelihood fit to the single photon cross sections, we determine N(nu) = 3.24 +/- 0.46 (statistical) +/- 0.22 (systematic).

Published
1992

36. Measurement of the Lifetime of B-hadrons and A Determination of [vcb]

Author

T. Spickermann, P. Marchesini, Bernard Ille, R. Magahiz, J. D. Swain, T. Angelov, V. Plyaskin, P. McBride, K. Lanius, H.R. Dimitrov, Jianming Qian, Ming Zeng, G. Hu, L. S. Hsu, M. Röhner, J. D. Burger, G. Rahal-Callot, M. T. Dova, Giovanni Ambrosi, A. M. Cartacci, K. Schultze, E. Tarkovsky, D. Lanske, Sc Yeh, G. Fernandez, L. Romero, R. Raghavan, Carlos Willmott, H. O. Cohn, Speranza Falciano, M. Caria, Y. F. Wang, A. C. König, G. Gratta, Bolek Wyslouch, Qian Wang, Y.F. Mao, M. Bourquin, Samuel C.C. Ting, Qiang Li, M. Sachwitz, A. C. Weber, G. Mirabelli, K. Strauch, R. T. Van de Walle, K. Lübelsmeyer, Piero Spillantini, Laurent Vuilleumier, K. S. Kumar, C. F. He, H. T. Li, D. Antreasyan, Egidio Longo, J.C. Sens, Lamberto Luminari, V. Lalieu, Qi An, H. Janssen, R. C. Ball, Pierre Lecomte, G. Sartorelli, M. Gruenewald, A. Pevsner, Charles Timmermans, L. J. Gutay, M. M. Ilyas, K.S. Yang, I. Scott, U. Becker, V. Koutsenko, P. Duinker, M. Bocciolini, Barry Blumenfeld, I. Duran, R. L. Sumner, G. H. Wang, U. Herten, L. Z. Sun, Steven Goldfarb, Simonetta Gentile, Roberto Battiston, R. Bizzarri, G. Passaleva, F. J. Eppling, L. W. Jones, D. S. Yan, R. Barillère, S. M. Ting, J.P. Burq, Valery Schegelsky, Antonino Zichichi, Petr Levchenko, S. Röhner, Y. J. Pei, Gianpaolo Carlino, F. DeNotaristefani, Yu. Galaktionov, Ph Fisher, E. Valente, Kenneth Francis Read, Adrian Biland, U. K. Chaturvedi, G. Conforto, Y. S. Lu, J. Wenninger, S. Schulte, K. Schmiemann, J. Alcaraz, H. Rykaczewski, Y. Karyotakis, F. Ferroni, W. Y. Chen, W. Stoeff, F. Wittgenstein, B. Borgia, Y. Zeng, D. McNally, D. Hauschildt, L. Ludovici, M. Chmeissani, S. S. Gau, E. Dénes, R. Weill, Tariq Aziz, V. Pojidaev, M. N. Kienzle-Focacci, R. Rosmalen, L. Leistam, D. P. Stickland, A. Kasser, Guofan Hu, D. Gele, A. Malinin, J. Ulbricht, K.D. Shmakov, S. J. Fan, Attilio Santocchia, Jean Fay, M. Dhina, G. Schwering, G. Herten, E. Drago, Nikita Smirnov, Y. Mi, L. Niessen, D.N. Mao, T. Driever, D. Boutigny, X. Leytens, G. Viertel, M. Lenti, Zm Wang, Jérôme Rose, Y. Mir, C. H. Ye, D. Lee, J. H. Field, C. Y. Chien, W. Friebel, A. L. Anderson, J. G. Branson, B. Z. Yang, Hans J. Vogel, S. Morganti, Cheng Chen, R. Liu, D. Linnhofer, M. Gailloud, Dimitri Bourilkov, J. Schwenke, P. Vikas, J.H. Wang, P. K. Malhotra, Federico Carminati, M. Pauluzzi, T. J. Wenaus, X. Y. Cui, P. Berges, O. Fackler, L. Urbán, G. M. Bilei, N. E. Moulai, Z. W. Yin, Ren-Yuan Zhu, C. Zaccardelli, H. A. Rizvi, I. Clare, J. Busenitz, P. Göttlicher, D. Z. Shen, C. Li, J. M. Salicio, Luciano Barone, Ying Wu, J. F. Zhou, H. R. Gustafson, J. A. Bakken, A. Arefiev, A. Engler, W. Ruckstuhl, S. C. Tonwar, P. Schmitz, S. Patricelli, Alexei Klimentov, S. N. Ganguli, Crisostomo Sciacca, A. Chen, R. Fabbretti, R. Sehgal, S. L. Wu, E. Fiandrini, L. Martinez-Laso, M. S. Sarakinos, L. Antonov, W. J. Metzger, Frank Filthaut, Thomas Ferguson, Q. Ye, J. B. Ye, An.A. Vorobyov, T. Matsuda, Q.Y. Yang, R. Mount, Aa Vorobyov, M. MacDermott, G. Sauvage, A. Gurtu, K. Freudenreich, P.V.K.S. Baba, H. L. Zhuang, M.L. Chen, H. S. Fesefeldt, Marco Pieri, C. Rippich, R. Leiste, Z. Y. Lin, K. Sudhakar, O. Adriani, V. Commichau, H. J. Schreiber, C. Neyer, M. A. Niaz, E. Brambilla, Lucas Taylor, M. Capell, Yanwen Liu, J. Krizmanic, A. Marchionni, Marco Meschini, C. Grinnell, Harvey B Newman, K. Hilgers, A. Hasan, Marcella Diemoz, Yuehong Xie, M. Vivargent, Christine Buisson, B. N. Jin, H. Nowak, V.R. Krastev, B. Monteleoni, F. Sticozzi, Leonardo Merola, P. Extermann, Y. D. Xu, Z. F. Gong, Yu. Kamyshkov, Z.Z. Xu, I. Leedom, J. Behrens, H. Hofer, P. J. Li, K. L. Tung, C. Spartiotis, T. Kramer, G. Von Dardel, J. J. Blaising, Sabine Riemann, A. Degré, E. Gonzalez, Z. M. Wang, F. Marzano, G. Coignet, C. Maña, I. C. Brock, W. Krenz, K. Deiters, Christopher George Tully, T. Azemoon, P. Lebrun, P. Blömeke, G. B. Mills, W. Kittel, BT Bouwens, H. Haan, K. N. Qureshi, C. Dionisi, W.W. Kinnison, Pablo Garcia-Abia, S. Lanzano, Bernardo Adeva, L. Li, Wolfgang Lohmann, Marcos Cerrada, R. Morand, Z. L. Xue, C. G. Yang, Mariagrazia Alviggi, W. Wallraff, Alain Hervé, A. Bay, Y.P. Tong, H. Vogt, B. Bertucci, G. Trowitzsch, E. Nagy, I. Vetlitsky, Howard A. Stone, Jozsef Toth, U. Uwer, J. Lettry, Claudio Luci, Zp Zhang, Carlo Civinini, S. Beingessner, J. Salicio, S. X. Wu, Nicanor Colino, M. Steur, M. Möller, D. Duchesneau, F. Tonisch, Q. Fan, M. Maolinbay, G. Raven, X.G. Li, M. Aguilar-Benitez, B. P. Roe, J. Mnich, Alberto Aloisio, A. Ricker, M. Schneegans, Elisabetta Gallo, V. Shevchenko, J.F. Li, R.B. Sutton, D. DiBitonto, Ph. Rosselet, Herwig Schopper, M. White, A. Rubbia, T. Foreman, H. F. Chen, H. Suter, Th. Meinholz, X. W. Tang, Y. H. Chang, George Alverson, G. Forconi, J. Weber, B. L. Betev, Valentin V. Khoze, I. Sheer, P. A. Piroué, J. Bao, S. Reucroft, Vineet Kumar, Peter Denes, A. Bujak, Oliver Kornadt, M. Pohl, Paolo Bagnaia, G. Chiefari, S. Shotkin, D. Perret-Gallix, S. Shevchenko, G. Morand, F. Behner, R. Malik, X. R. Shi, Felicitas Pauss, J. M. Lubbers, S. Rosier-Lees, P. Le Coultre, C. R. Wang, R. Starosta, D. Luckey, Zhuoxiang Ren, Gy L. Bencze, Reinhard W. Schulte, F. C. Erné, M. Wadhwa, D. J. Schotanus, J. M. You, M. Fabre, N. Produit, Georgi Sultanov, Fl Linde, T. S. Dai, G. A. Yang, R. A. Khan, A. A. Syed, V. P. Andreev, F. Cesaroni, G.J. Bobbink, M. Chemarin, B.C. Stringfellow, M. Yzerman, F. Crijns, J. Y. Liao, G. M. Chen, R.J. Wu, Jun Guo, B. Lindemann, Emilio Leonardi, J. Schütte, G. Finocchiaro, R. Bock, Marcel Merk, O. Rind, Hafeez R. Hoorani, J. Perrier, D. Kirkby, L. Baksay, F. Bruyant, A. Böhm, Kajari Mazumdar, S. Khokhar, X. J. Yan, S. Müller, W. G. Ma, Xd Cai, M. Fukushima, D. Wright, A. Kunin, G. Landi, H. Anderhub, J. M. Le Goff, G. S. Sanders, P. G. Seiler, J. A. Rubio, Sw. Banerjee, P. Zemp, R. de Asmundis, Manjit Kaur, M. J. Glaubman, H. Akbari, H. El Mamouni, P. Arce, D. Goujon, Daqiang Zhang, Vincenzo Innocente, A. Sopczak, R. D'Allessandro, D.W. Schmitz, G.G.G. Massaro, Robert Clare, Igor Vorobiev, M. Hebert, Thomas Hebbeker, Panos A Razis, X.L. Wang, Paul Lecoq, R. W. Kraemer, M. Napolitano, A. Gordeev, Stéphane Jézéquel, E. Soderstrom, H. S. Chen, J. Berdugo, L. Servoli, Z.Q. Yang, F. Plasil, Mingshui Chen, D. Ren, U. Vikas, A. Contin, Alexander Savin, M. Guanziroli, J. P. Martin, E. Shumilov, V. Shoutko, M. Tonutti, D. Pandoulas, T. McMahon, B., Adeva, O., Adriani, M., Aguilarbenitez, H., Akbari, J., Alcaraz, Aloisio, Alberto, G., Alverson, Alviggi, Mariagrazia, G., Ambrosi, Q., An, H., Anderhub, A. L., Anderson, V. P., Andreev, T., Angelov, L., Antonov, D., Antreasyan, P., Arce, A., Arefiev, T., Azemoon, T., Aziz, P. V., K., P., Bagnaia, J. A., Bakken, L., Baksay, R. C., Ball, S., Banerjee, J., Bao, R., Barillere, L., Barone, R., Battiston, A., Bay, U., Becker, F., Behner, J., Behren, S., Beingessner, G. L., Bencze, J., Berdugo, P., Berge, B., Bertucci, B. L., Betev, A., Biland, G. M., Bilei, R., Bizzarri, J. J., Blaising, P., Blomeke, B., Blumenfeld, G. J., Bobbink, M., Bocciolini, R., Bock, A., Bohm, B., Borgia, D., Bourilkov, M., Bourquin, D., Boutigny, B., Bouwen, E., Brambilla, J. G., Branson, I. C., Brock, F., Bruyant, C., Buisson, A., Bujak, J. D., Burger, J. P., Burq, J., Busenitz, X. D., Cai, M., Capell, M., Caria, G., Carlino, F., Carminati, A. M., Cartacci, M., Cerrada, F., Cesaroni, Y. H., Chang, U. K., Chaturvedi, M., Chemarin, A., Chen, C., Chen, G. M., Chen, H. F., Chen, H. S., Chen, M., Chen, M. L., Chen, W. Y., Chen, Chiefari, Giovanni, C. Y., Chien, M., Chmeissani, C., Civinini, I., Clare, R., Clare, H. O., Cohn, G., Coignet, N., Colino, V., Commichau, G., Conforto, A., Contin, F., Crijn, X. Y., Cui, T. S., Dai, R., Dalessandro, R., Deasmundi, A., Degre, K., Deiter, E., Dene, P., Dene, F., Denotaristefani, M., Dhina, D., Dibitonto, M., Diemoz, H. R., Dimitrov, C., Dionisi, M. T., Dova, E., Drago, T., Driever, D., Duchesneau, P., Duinker, I., Duran, H., Elmamouni, A., Engler, F. J., Eppling, F. C., Erne, P., Extermann, R., Fabbretti, M., Fabre, S., Falciano, Q., Fan, S. J., Fan, O., Fackler, J., Fay, T., Ferguson, G., Fernandez, F., Ferroni, H., Fesefeldt, E., Fiandrini, J., Field, F., Filthaut, G., Finocchiaro, P. H., Fisher, G., Forconi, T., Foreman, K., Freudenreich, W., Friebel, M., Fukushima, M., Gailloud, Y., Galaktionov, E., Gallo, S. N., Ganguli, P., Garciaabia, S. S., Gau, D., Gele, S., Gentile, M., Glaubman, S., Goldfarb, Z. F., Gong, E., Gonzalez, A., Gordeev, P., Gottlicher, D., Goujon, G., Gratta, C., Grinnell, M., Gruenewald, M., Guanziroli, J. K., Guo, A., Gurtu, H. R., Gustafson, L. J., Gutay, H., Haan, A., Hasan, D., Hauschildt, C. F., He, T., Hebbeker, M., Hebert, G., Herten, U., Herten, A., Herve, K., Hilger, H., Hofer, H., Hoorani, L. S., Hsu, G., Hu, G. Q., Hu, B., Ille, M. M., Ilya, V., Innocente, H., Janssen, S., Jezequel, B. N., Jin, L. W., Jone, A., Kasser, R. A., Khan, Y., Kamyshkov, Y., Karyotaki, M., Kaur, S., Khokhar, V., Khoze, M. N., Kienzlefocacci, W., Kinnison, D., Kirkby, W., Kittel, A., Klimentov, A. C., Konig, O., Kornadt, V., Koutsenko, R. W., Kraemer, T., Kramer, V. R., Krastev, W., Krenz, J., Krizmanic, K. S., Kumar, V., Kumar, A., Kunin, V., Lalieu, G., Landi, K., Laniu, D., Lanske, S., Lanzano, P., Lebrun, P., Lecomte, P., Lecoq, P., Lecoultre, D., Lee, I., Leedom, J. M., Legoff, L., Leistam, R., Leiste, M., Lenti, E., Leonardi, J., Lettry, P. M., Levchenko, X., Leyten, C., Li, H. T., Li, J. F., Li, L., Li, P. J., Li, Q., Li, X. G., Li, J. Y., Liao, Z. Y., Lin, F. L., Linde, B., Lindemann, D., Linnhofer, R., Liu, Y., Liu, W., Lohmann, E., Longo, Y. S., Lu, J. M., Lubber, K., Lubelsmeyer, C., Luci, D., Luckey, L., Ludovici, L., Luminari, W. G., Ma, M., Macdermott, R., Magahiz, P. K., Malhotra, R., Malik, A., Malinin, C., Mana, D. N., Mao, Y. F., Mao, M., Maolinbay, P., Marchesini, A., Marchionni, J. P., Martin, L., Martinezlaso, F., Marzano, G. G., G., T., Matsuda, K., Mazumdar, P., Mcbride, T., Mcmahon, D., Mcnally, T., Meinholz, M., Merk, Merola, Leonardo, M., Meschini, W. J., Metzger, Y., Mi, G. B., Mill, Y., Mir, G., Mirabelli, J., Mnich, M., Moller, B., Monteleoni, G., Morand, R., Morand, S., Morganti, N. E., Moulai, R., Mount, S., Muller, E., Nagy, Napolitano, Marco, H., Newman, C., Neyer, M. A., Niaz, L., Niessen, H., Nowak, D., Pandoula, M., Pauluzzi, F., Pau, F., Plasil, G., Passaleva, Patricelli, Sergio, Y. J., Pei, D., Perretgallix, J., Perrier, A., Pevsner, M., Pieri, P. A., Piroue, V., Plyaskin, M., Pohl, V., Pojidaev, N., Produit, J. M., Qian, K. N., Qureshi, R., Raghavan, G., Rahalcallot, G., Raven, P., Razi, K., Read, D., Ren, Z., Ren, S., Reucroft, A., Ricker, S., Riemann, O., Rind, C., Rippich, H. A., Rizvi, B. P., Roe, M., Rohner, S., Rohner, L., Romero, J., Rose, S., Rosierlee, R., Rosmalen, P., Rosselet, A., Rubbia, J. A., Rubio, W., Ruckstuhl, H., Rykaczewski, M., Sachwitz, J., Salicio, J. M., Salicio, G., Sander, A., Santocchia, M. S., Sarakino, G., Sartorelli, G., Sauvage, A., Savin, V., Schegelsky, K., Schmiemann, D., Schmitz, P., Schmitz, M., Schneegan, H., Schopper, D. J., Schotanu, S., Shotkin, H. J., Schreiber, R., Schulte, S., Schulte, K., Schultze, J., Schutte, J., Schwenke, G., Schwering, Sciacca, Crisostomo, I., Scott, R., Sehgal, P. G., Seiler, J. C., Sen, L., Servoli, I., Sheer, D. Z., Shen, V., Shevchenko, S., Shevchenko, X. R., Shi, K., Shmakov, V., Shoutko, E., Shumilov, N., Smirnov, E., Soderstrom, A., Sopczak, C., Spartioti, T., Spickermann, P., Spillantini, R., Starosta, M., Steuer, D. P., Stickland, F., Sticozzi, W., Stoeffl, H., Stone, K., Strauch, B. C., Stringfellow, K., Sudhakar, G., Sultanov, R. L., Sumner, L. Z., Sun, H., Suter, R. B., Sutton, J. D., Swain, A. 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P., Zhang, J. F., Zhou, R. Y., Zhu, H. L., Zhuang, A., Zichichi, and IHEF (IoP, FNWI)

Subjects
Physics, Nuclear and High Energy Physics, Particle physics, E+E ANNIHILATION, 010308 nuclear & particles physics, Cabibbo–Kobayashi–Maskawa matrix, Branching fraction, Electron–positron annihilation, Hadron, AVERAGE LIFETIME, 01 natural sciences, DECAYS, Nuclear physics, 0103 physical sciences, BOTTOM HADRONS, UPDATE, QUARKS, Impact parameter, FRAGMENTATION, 010306 general physics, GeneralLiterature_REFERENCE(e.g.,dictionaries,encyclopedias,glossaries), Particle Physics - Experiment, Lepton
Abstract

From a fit to the impact parameter distribution of lepton tracks from semileptonic b decay, the lifetime of B-hadrons produced in e + e − collisions at the Z 0 is measured to be 1.32±0.08 (stat.)±0.09(syst.) ps. Combined with an earlier measurement of the branching ratio Br(B→l ν X), the CKM matrix element | V cb | is determined to be 0.046±0.002 (exp.) −0.003 +0.004 (theory).

Published
1991

37. Search for lepton flavour violation in Z$^0$ decays

Author

J. Y. Liao, M. Möller, Emilio Leonardi, J. Schütte, H. F. Chen, Y. Mi, C. Dionisi, R. Bock, H. R. Gustafson, Pablo Garcia-Abia, Ren-Yuan Zhu, Alain Hervé, M. Fabre, J. M. Salicio, An.A. Vorobyov, Luciano Barone, E. Valente, A. Bay, L. Baksay, S. X. Wu, F. Bruyant, G. Chiefari, D. Duchesneau, T. Angelov, T. Matsuda, S. C. Tonwar, Sc Yeh, R. Mount, Georgi Sultanov, S. Shevchenko, Carlo Civinini, M. Maolinbay, D. McNally, J.F. Li, G. Raven, T. S. Dai, Q.Y. Yang, R. A. Khan, K. Lanius, Jianming Qian, G. Hu, F. Behner, R.B. Sutton, D. DiBitonto, G. Fernandez, L. Romero, H. Suter, Ph. Rosselet, O. Adriani, Frank Filthaut, X.G. Li, Lucas Taylor, Thomas Ferguson, Dimitri Bourilkov, M. Aguilar-Benitez, Herwig Schopper, E. Dénes, V. Commichau, H. J. Schreiber, Valentin V. Khoze, M. Steuer, G. Forconi, J. Weber, M. Bourquin, X. Leytens, G. Viertel, C-Q. Li, V. P. Andreev, E. Brambilla, C. Neyer, G.J. Bobbink, R. Bizzarri, A. Hasan, F. DeNotaristefani, D. Pandoulas, T. McMahon, L. Leistam, N. E. Moulai, M. Chemarin, P. Berges, M. White, Carlos Willmott, R. Leiste, L. Antonov, Marta Felcini, D. Perret-Gallix, K. Strauch, M. Fukushima, A. A. Syed, Speranza Falciano, M. J. Glaubman, Y. D. Xu, Z. F. Gong, Francesco Becattini, M. Capell, J. Krizmanic, Hans J. Vogel, S. Morganti, G. M. Chen, Y. F. Wang, H. T. Li, R.J. Wu, M. Sachwitz, V.R. Krastev, E. Gonzalez, B. Monteleoni, F. Sticozzi, B. N. Jin, B.C. Stringfellow, R. Barillère, G. Sauvage, H. Nowak, M. Yzerman, F. Crijns, Petr Levchenko, S. Röhner, S. Lanzano, Bernardo Adeva, H. El Mamouni, J. Behrens, T. Spickermann, P. J. Li, P. Schmitz, J. Schwenke, X. Y. Cui, E. Fiandrini, L. Martinez-Laso, C. Spartiotis, F. Wittgenstein, P. Lebrun, Jun Guo, B. Lindemann, Wolfgang Stoeffl, L. Ludovici, M. Chmeissani, R. Liu, M. Bocciolini, P. Arce, A. Arefiev, K. Freudenreich, S. S. Gau, T. J. Wenaus, G. Finocchiaro, BT Bouwens, Giovanni Ambrosi, E. Drago, L. Niessen, G. Schwering, H.R. Dimitrov, R. Morand, Z. L. Xue, J. M. Le Goff, G. S. Sanders, Howard A. Stone, Harvey B Newman, G. Herten, Marcel Merk, Aa Vorobyov, Yu. Kamyshkov, J. Perrier, W. Wallraff, T. Driever, D. Goujon, P.V.K.S. Baba, D. Linnhofer, H. L. Zhuang, Bernard Ille, K. Hilgers, Q. Fan, M. S. Sarakinos, J. D. Burger, G. Rahal-Callot, P. G. Seiler, Mw Gruenewald, J. A. Rubio, P. Vikas, Qiang Li, R. Malik, W. Friebel, O. Rind, G. B. Mills, O. Fackler, Vincenzo Innocente, M. N. Kienzle-Focacci, R. Rosmalen, U. Uwer, A. Chen, J. Salicio, M. Vivargent, Federico Carminati, J. M. Lubbers, M.L. Chen, S. Banerjee, M. Caria, L. Urbán, Roberto Battiston, Hafeez R. Hoorani, F. Marzano, K. Schultze, E. Tarkovsky, C. G. Yang, A. Gordeev, R. Magahiz, C. Maña, D. Lanske, Y. H. Chang, A. Sopczak, G. Coignet, W. Krenz, J. D. Swain, U. Herten, Jiunn-Wei Chen, Marcella Diemoz, Wen-Gan Ma, Peter Denes, I. C. Brock, Raffaello D'Alessandro, K. S. Kumar, B. Borgia, Igor Vorobiev, J. Ulbricht, C. Grinnell, D. Z. Shen, M. Hebert, R. Sehgal, Zhuoxiang Ren, J. A. Bakken, Paolo Bagnaia, Bolek Wyslouch, Qian Wang, M. Pauluzzi, M. Wadhwa, D. J. Schotanus, U. K. Chaturvedi, S. Schulte, Y. S. Lu, Samuel C.C. Ting, J. M. You, Steven Goldfarb, Alberto Aloisio, G. Von Dardel, A. Degré, W. Kittel, D. Antreasyan, K. Schmiemann, A. Savin, K. Sudhakar, Marco Meschini, Qi An, A. Ricker, N. Produit, L. Z. Sun, P. McBride, G. M. Bilei, G. A. Yang, V. Lalieu, D. P. Stickland, Kajari Mazumdar, A. Malinin, Jérôme Rose, G. Passaleva, J. H. Field, H. Anderhub, C. Y. Chien, P. Marchesini, Leonardo Merola, Ming Zeng, C. F. He, Panos A Razis, Th. Meinholz, I. Clare, J. Busenitz, S. Khokhar, D. Gele, X. J. Yan, S. Müller, Y. Mir, C. H. Ye, V. Plyaskin, X. L. Wang, E. Nagy, Yuehong Xie, Christopher George Tully, X. W. Tang, M. Röhner, V. Koutsenko, Christine Buisson, H. Janssen, K.S. Yang, L.S. Hsu, P. Göttlicher, I. Sheer, P. A. Piroué, P. Duinker, Xd Cai, Z. M. Wang, Wolfgang Lohmann, H. Vogt, T. Azemoon, M. Schneegans, D. M. Lee, George Alverson, Tariq Aziz, A. Pevsner, B. Bertucci, J.P. Burq, Y.F. Mao, R. T. Van de Walle, J. B. Ye, Jozsef Toth, M. T. Dova, J. Lettry, Claudio Luci, P. Blömeke, Nicanor Colino, Vineet Kumar, Stéphane Jézéquel, P. Zemp, Elisabetta Gallo, A. Kasser, Guofan Hu, H. O. Cohn, Barry Blumenfeld, R. de Asmundis, L. Li, I. Scott, Chenliang Wang, S. Patricelli, F. Ferroni, Y. Zeng, S. Reucroft, Marcos Cerrada, A. Klimentov, Valery Schegelsky, Antonino Zichichi, A. C. Weber, J. G. Branson, S. Shotkin, Crisostomo Sciacca, Ph Fisher, Marco Pieri, C. Rippich, H. Rykaczewski, Z. W. Yin, S. N. Ganguli, Simonetta Gentile, J. Berdugo, Y. Karyotakis, Atul Gurtu, K. Deiters, Zhen Zhang, B. P. Roe, Q. Ye, Kenneth Francis Read, D. Hauschildt, A. Bujak, Oliver Kornadt, M. Pohl, Yu. Galaktionov, J. Alcaraz, G. Mirabelli, Attilio Santocchia, Jean Fay, M. Dhina, D. Boutigny, K. Lübelsmeyer, Piero Spillantini, Z. Y. Lin, Z.Q. Yang, J.H. Wang, Cheng Chen, W. J. Burger, Zhongyukun Xu, P. K. Malhotra, H. A. Rizvi, A. 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L. Wu, X. R. Shi, Felicitas Pauss, S. Rosier-Lees, P. Le Coultre, Zheng Wang, Yanwen Liu, Sabine Riemann, K. N. Qureshi, R. Starosta, D. Luckey, Gy L. Bencze, Reinhard W. Schulte, A. M. Cartacci, S. Beingessner, R. Raghavan, J. Mnich, A. C. König, Y.P. Tong, F. C. Erné, Laurent Vuilleumier, A. Rubbia, T. Foreman, J. Bao, R. L. Sumner, G. H. Wang, J. Wenninger, V. Pojidaev, Nikita Smirnov, B. L. Betev, G. Morand, F. Cesaroni, Laboratoire d'Annecy de Physique des Particules (LAPP), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), Institut de Physique Nucléaire de Lyon (IPNL), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), CMS, Institut de Physique des 2 Infinis de Lyon (IP2I Lyon), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS), L3, B., Adeva, O., Adriani, M., Aguilarbenitez, H., Akbari, J., Alcaraz, Aloisio, Alberto, G., Alverson, Alviggi, Mariagrazia, G., Ambrosi, Q., An, H., Anderhub, A. 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F., Gong, E., Gonzalez, A., Gordeev, P., Gottlicher, D., Goujon, G., Gratta, C., Grinnell, M., Gruenewald, M., Guanziroli, J. K., Guo, A., Gurtu, H. R., Gustafson, L. J., Gutay, H., Haan, A., Hasan, D., Hauschildt, C. F., He, T., Hebbeker, M., Hebert, G., Herten, U., Herten, A., Herve, K., Hilger, H., Hofer, H., Hoorani, L. S., Hsu, G., Hu, G. Q., Hu, B., Ille, M. M., Ilya, V., Innocente, H., Janssen, S., Jezequel, B. N., Jin, L. W., Jone, A., Kasser, R. A., Khan, Y., Kamyshkov, Y., Karyotaki, M., Kaur, S., Khokhar, V., Khoze, M. N., Kienzlefocacci, W., Kinnison, D., Kirkby, S., Kirsch, W., Kittel, A., Klimentov, A. C., Konig, O., Kornadt, V., Koutsenko, R. W., Kraemer, T., Kramer, V. R., Krastev, W., Krenz, J., Krizmanic, K. S., Kumar, V., Kumar, A., Kunin, V., Lalieu, G., Landi, K., Laniu, D., Lanske, S., Lanzano, P., Lebrun, P., Lecomte, P., Lecoq, P., Lecoultre, D., Lee, I., Leedom, J. M., Legoff, L., Leistam, R., Leiste, M., Lenti, E., Leonardi, J., Lettry, P. 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Subjects
Nuclear and High Energy Physics, Particle physics, Large electron positron collider, Flavour, 01 natural sciences, BHABHA SCATTERING, MONTE-CARLO, TheoryofComputation_ANALYSISOFALGORITHMSANDPROBLEMCOMPLEXITY, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], RADIATIVE-CORRECTIONS, Z0, 010306 general physics, GeneralLiterature_REFERENCE(e.g.,dictionaries,encyclopedias,glossaries), Ciencias Exactas, Boson, HIGH-ENERGIES, Physics, 010308 nuclear & particles physics, ELECTROWEAK PARAMETERS, Física, MODEL, Lepton flavour violation, PHOTON CORRECTIONS, TAU, Particle Physics - Experiment, Lepton
Abstract

We have searched for lepton flavour violation in Z0 boson decays into lepton pairs, Z0→μτ, Z0→eτ, and Z0→eμ. The data sample is based on an integrated luminosity of 10.4 pb-1 corresponding to 370 000 Z0’s produced. We obtain upper limits on the branching ratios of 4.8 X 10-5 for the μτ 3.4 X 10-5 for the eτ and 2.4 X 10-5 for the eμ decay modes at the 95% confidence level., Facultad de Ciencias Exactas

Published
1991
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38. MEASUREMENT OF Z0-]BBBAR DECAY PROPERTIES

Author

W. Wallraff, Guofan Hu, Marco Meschini, D. Kirkby, A. Arefiev, H. Anderhub, Aa Vorobyov, J. G. Branson, J. Von Rango, E. Thomas, J.H. Wang, K. N. Qureshi, R. Leiste, Zhongyukun Xu, P. K. Malhotra, T. Foreman, A. Kunin, Y.J. Pei, Wolfgang Lohmann, H. Vogt, Z. W. Yin, J.M. Qian, S. N. Ganguli, H. van der Graaf, Philip Kaaret, B. Bertucci, D. Zhang, J. Ulbricht, A. Degré, Nicanor Colino, G. Herten, W. Friebel, G. Faber, D. Kaplan, W. J. Metzger, Corinne Goy, M. Guanziroli, F. Marzano, W.-D. Nowak, Petr Levchenko, R. Dolin, W. Krenz, G. Schwering, L. Montanet, G.G.G. Massaro, D. Pandoulas, U. Micke, D. Linnhofer, R. Mount, An.A. Vorobyov, T. Matsuda, A. Kuhn, J. P. Martin, F. Wittgenstein, F. Carbonara, O. Adriani, J. A. Bakken, Federico Carminati, S. Beingessner, L. Ludovici, J. Mnich, L. Martinez, E. Shumilov, J. Zoll, E. Drago, M. Elkacimi, P. Duinker, J. Bao, L. Niessen, F. L. Linde, M. Fukushima, Raffaello D'Alessandro, R. Morand, Z. L. Xue, M. Schöntag, W. Böhlen, Samuel C.C. Ting, V. Shoutko, T. Driever, T. Kramer, Y. Mi, L. Urbàn, J. Berdugo, B. Spiess, D. Antreasyan, J. J. Blaising, G. Landi, M. J. Glaubman, L. Antonov, T. Spickermann, S. Kwan, S. Schulte, M. Harris, C. Grinnell, Leonardo Merola, Steven Goldfarb, R.B. Sutton, P. Schmitz, Howard A. Stone, Alexei Klimentov, J. M. Le Goff, D.H. Zhang, P. Vikas, T.S. Dai, V. Lalieu, H. Haan, M. Tonutti, P. J. Li, P. Lebrun, Dimitri Bourilkov, W. Walk, Mariagrazia Alviggi, C. Pols, Z.F. Gong, W. Ruckstuhl, C. Camps, Mingshui Chen, V. Plyaskin, S. C. Tonwar, R. De Asmudis, D.N. Mao, C. Souyri, Luciano Romero, Fridolin Dittus, B. Monteleoni, Yu. Kamyshkov, C. Zabounidis, Qian Wang, K. Freudenreich, Mw Gruenewald, Bernard Ille, V. Koutsenko, D. P. Stickland, D. Goujon, E. Dénes, A. Marchionni, Wen-Gan Ma, Qi An, S. Lökös, T. Azemoon, I. Vetlitsky, J. A. Rubio, R. Magahiz, Konrad Deiters, Y. Mir, C. H. Ye, P. Marchesini, V. Morgunov, J.M. Thenard, A.M. Cartacci, Thomas Ferguson, S. Patricelli, K.S. Yang, W. 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V., K., P., Bagnaia, J. A., Bakken, L., Baksay, R. C., Ball, S., Banerjee, J., Bao, L., Barone, A., Bay, U., Becker, S., Beingessner, G. L., Bencze, J., Berdugo, P., Berge, B., Bertucci, B. L., Betev, A., Biland, R., Bizzarri, J. J., Blaising, P., Blomeke, B., Blumenfeld, G. J., Bobbink, M., Bocciolini, W., Bohlen, A., Bohm, T., Bohringer, B., Borgia, D., Bourilkov, M., Bourquin, D., Boutigny, J. G., Branson, I. C., Brock, F., Bruyant, C., Buisson, J. D., Burger, J. P., Burq, X. D., Cai, D., Campana, C., Camp, M., Capell, F., Carbonara, F., Carminati, A. M., Cartacci, M., Cerrada, F., Cesaroni, Y. H., Chang, U. K., Chaturvedi, M., Chemarin, A., Chen, C., Chen, G. M., Chen, H. F., Chen, H. S., Chen, M., Chen, M. L., Chen, Chiefari, Giovanni, C. Y., Chien, C., Civinini, I., Clare, R., Clare, G., Coignet, N., Colino, V., Commichau, G., Conforto, A., Contin, F., Crijn, X. Y., Cui, T. S., Dai, R., Dalessandro, R., Deasmudi, A., Degre, K., Deiter, E., Dene, P., Dene, F., Denotaristefani, M., Dhina, M., Diemoz, H. R., Dimitrov, C., Dionisi, F., Dittu, R., Dolin, E., Drago, T., Driever, P., Duinker, I., Duran, M., Elkacimi, A., Engler, F. J., Eppling, F. C., Erne, P., Extermann, R., Fabbretti, G., Faber, S., Falciano, S. J., Fan, M., Fabre, J., Fay, J., Fehlmann, H., Fenker, T., Ferguson, G., Fernandez, F., Ferroni, H., Fesefeldt, J., Field, G., Forconi, T., Foreman, K., Freudenreich, W., Friebel, M., Fukushima, M., Gailloud, Y., Galaktionov, E., Gallo, S. N., Ganguli, S. S., Gau, S., Gentile, M., Gettner, M., Glaubman, S., Goldfarb, Z. F., Gong, E., Gonzalez, A., Gordeev, P., Gottlicher, D., Goujon, C., Goy, G., Gratta, A., Grime, C., Grinnell, M., Gruenewald, M., Guanziroli, A., Gurtu, D., Gusewell, H., Haan, S., Hancke, K., Hangarter, M., Harri, C. F., He, A., Heavey, T., Hebbeker, M., Hebert, G., Herten, U., Herten, A., Herve, K., Hilger, H., Hofer, L. S., Hsu, G., Hu, G. Q., Hu, B., Ille, M. M., Ilya, V., Innocente, E., Isiksal, E., Jagel, B. N., Jin, L. W., Jone, P., Kaaret, R. A., Khan, Y., Kamyshkov, D., Kaplan, Y., Karyotaki, V., Khoze, D., Kirkby, W., Kittel, A., Klimentov, P. F., Klok, A. C., Konig, O., Kornadt, V., Koutsenko, R. W., Kraemer, T., Kramer, V. R., Krastev, W., Krenz, A., Kuhn, V., Kumar, A., Kunin, S., Kwan, A., Vanlaak, V., Lalieu, G., Landi, K., Laniu, D., Lanske, S., Lanzano, P., Lebrun, P., Lecomte, P., Lecoq, P., Lecoultre, I., Leedom, J. M., Legoff, L., Leistam, R., Leiste, J., Lettry, P. M., Levchenko, X., Leyten, C., Li, H. T., Li, J. F., Li, L., Li, P. J., Li, X. G., Li, J. Y., Liao, R., Liu, Y., Liu, Z. Y., Lin, F. L., Linde, D., Linnhofer, W., Lohmann, S., Loko, E., Longo, Y. S., Lu, J. M., Lubber, K., Lubelsmeyer, C., Luci, D., Luckey, L., Ludovici, X., Lue, L., Luminari, W. G., Ma, M., Macdermott, R., Magahiz, M., Maire, P. K., Malhotra, A., Malinin, C., Mana, D. N., Mao, Y. F., Mao, M., Maolinbay, P., Marchesini, A., Marchionni, J. P., Martin, L., Martinez, F., Marzano, G. G., G., T., Matsuda, K., Mazumdar, P., Mcbride, T., Meinholz, M., Merk, Merola, Leonardo, M., Meschini, W. J., Metzger, Y., Mi, M., Micke, U., Micke, G. B., Mill, Y., Mir, G., Mirabelli, J., Mnich, L., Montanet, B., Monteleoni, G., Morand, R., Morand, S., Morganti, V., Morgunov, R., Mount, E., Nagy, Napolitano, Marco, H., Newman, L., Niessen, W. D., Nowak, D., Pandoula, Paternoster, Giovanni, Patricelli, Sergio, Y. J., Pei, D., Perretgallix, J., Perrier, E., Perrin, A., Pevsner, M., Pieri, P. A., Piroue, V., Plyaskin, M., Pohl, V., Pojidaev, C. L., A., N., Produit, J. M., Qian, K. N., Qureshi, R., Raghavan, G., Rahalcallot, J., Vonrango, P., Razi, K., Read, D., Ren, Z., Ren, S., Reucroft, T., Riemann, C., Rippich, S., Rodriguez, B. P., Roe, M., Rohner, T., Rombach, L., Romero, J., Rose, S., Rosierlee, P., Rosselet, J. A., Rubio, W., Ruckstuhl, H., Rykaczewski, M., Sachwitz, J., Salicio, G., Sauvage, A., Savin, V., Schegelsky, P., Schmitt, D., Schmitz, P., Schmitz, M., Schneegan, M., Schontag, H., Schopper, D. J., Schotanu, H. J., Schreiber, R., Schulte, S., Schulte, K., Schultze, J., Schutte, J., Schwenke, G., Schwering, Sciacca, Crisostomo, P. G., Seiler, J. C., Sen, I., Sheer, V., Shevchenko, S., Shevchenko, X. R., Shi, K., Shmakov, V., Shoutko, E., Shumilov, N., Smirnov, A., Sopczak, C., Souyri, T., Spickermann, B., Spie, P., Spillantini, R., Starosta, M., Steuer, D. P., Stickland, B., Stohr, H., Stone, K., Strauch, K., Sudhakar, G., Sultanov, R. L., Sumner, H., Suter, R. B., Sutton, A. A., Syed, X. W., Tang, E., Tarkovsky, J. M., Thenard, E., Thoma, C., Timmerman, S. C., C., S. M., Ting, Y. P., Tong, M., Tonutti, S. C., Tonwar, J., Toth, K. L., Tung, J., Ulbricht, L., Urban, U., Uwer, E., Valente, R. 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Subjects
Nuclear physics, Physics, Nuclear and High Energy Physics, Particle physics, Muon, media_common.quotation_subject, Electron–positron annihilation, Hadron, Charge (physics), Asymmetry, Bottom quark, media_common
Abstract

We have measured the properties of Z0 → b b decays using a sample of 944 inclusive muon events, corresponding to 18 000 hadron events obtained with the L3 detector at LEP. We measured the partial decay width of the Z0 into b b , Γ b b =353±48 MeV , and we determined the vector coupling of the Z0 to the b quark; grmv2(b)=0.095±0.047. We measured the forward-backward charge asymmetry in e+e− → b b events at √s≈Mv, and obtained A b b =13.3±9.9% .

Published
1990

39. Measurement of Z0 decays to hadrons and a precise determination of the number of neutrino species

Author

Adeva, B, Adriani, O, Aguilar-Benítez, M, Akbari, H, Alcaraz, J, Aloisio, A, Alverson, G, Alviggi, M G, An, Q, Anderhub, H, Anderson, A L, Andreev, V P, Angelov, T, Antonov, L, Antreasyan, D, Arce, P, Arefev, A, Azemoon, T, Aziz, T, Baba, P V K S, Bagnaia, P, Bakken, J A, Baksay, L, Ball, R C, Banerjee, S, Bao, J, Barone, L, Bay, A, Becker, U, Behrens, J, Beingessner, S, Bencze, G L, Berdugo, J, Berges, P, Bertucci, B, Betev, B L, Biland, A, Bizzarri, R, Blaising, J J, Blömeke, P, Blumenfeld, B, Bobbink, Gerjan J, Bocciolini, M, Böhlen, W, Böhm, A, Böhringer, T, Borgia, B, Bourilkov, D, Bourquin, Maurice, Boutigny, D, Branson, J G, Brock, I C, Bruyant, F, Burger, J D, Burq, J P, Cai, X D, Campana, D, Camps, C, Capell, M, Carbonara, F, Carminati, F, Cartacci, A M, Cerrada-Canales, M, Cesaroni, F, Chang, Y H, Chaturvedi, U K, Chemarin, M, Chen, A, Chen, C, Chen, G M, Chen, H F, Chen, H S, Chen, M, Chen, M L, Chiefari, G, Chien, C Y, Civinini, C, Clare, I, Clare, R, Coignet, G, Colino, N, Commichau, V, Conforto, G, Contin, A, Crijns, F, Cui, X Y, Dai, T S, D'Alessandro, R, Degré, A, Deiters, K, Dénes, E, Denes, P, De Notaristefani, F, Dhina, M, Diemoz, M, Diez Hedo, F, Dimitrov, H R, Dionisi, C, Dittus, F B, Dolin, R M, Drago, E, Driever, T, Duinker, P, Durán, I, El-Mamouni, H, Engler, A, Eppling, F J, Erné, F C, Extermann, Pierre, Fabbretti, R, Faber, G, Falciano, S, Fan, S J, Fabre, M, Fay, J, Fehlmann, J, Fenker, H C, Ferguson, T, Fernández, G, Ferroni, F, Fesefeldt, H S, Field, J, Forconi, G, Foreman, T, Freudenreich, Klaus, Friebel, W, Fukushima, M, Gailloud, M, Galaktionov, Yu, Gallo, E, Ganguli, S N, Gau, S S, Gentile, S, Gettner, M, Glaubman, M, Goldfarb, S, Gong, Z F, González, E, Gordeev, A, Göttlicher, P, Goujon, D, Gratta, Giorgio, Grimes, A, Grinnell, C, Grünewald, M W, Guanziroli, M, Gurtu, A, Güsewell, D, Haan, H, Hancke, S, Hangarter, K, Harris, M, Harting, D, Hartjes, F G, Hasan, A, He, C F, Heavey, A, Hebbeker, T, Hebert, M, Herten, G, Herten, U, Hervé, A, Hilgers, K, Hofer, H, Hsu, L S, Hu, G, Hu, G Q, Ille, B, Ilyas, M M, Innocente, Vincenzo, Isiksal, E, Jagel, E, Jakobs, C, Jin, B N, Jones, L W, Kaaret, P E, Khan, R A, Kamyshkov, Yu A, Kaplan, D, Karyotakis, Yu, Khoze, V, Kirkby, D, Kittel, E W, Klimentov, A, Klok, P F, König, A C, Kornadt, O, Koutsenko, V F, Krämer, R W, Kramer, T, Krastev, V R, Krenz, W, Krizmanic, J F, Kuhn, A, Kumar, V, Kunin, A, Kwan, S, Lalieu, V, Landi, G, Lanius, Karl, Lanske, D, Lanzano, S, Lebrun, P, Lecomte, P, Lecoq, P, Le Coultre, P, Leedom, I D, Le Goff, J M, Leistam, L, Leiste, R, Lenti, M, Lettry, Jacques, Levchenko, P M, Leytens, X, Li Chuan, Li, H T, Li, J F, Li, L, Li, P J, Li, X G, Liao, J Y, Liu, R, Liu, Y, Lin, Z Y, Linde, Frank L, Linnhöfer, D, Lohmann, W, Lökös, S, Longo, E, Lü, Y S, Lubbers, J M, Lübelsmeyer, K, Luci, C, Luckey, D, Ludovici, L, Lue, X, Luminari, L, Ma Wen Gan, MacDermott, M, Magahiz, R, Maire, M, Malhotra, P K, Malinin, A, Maña, C, Mao, D N, Mao, Y F, Maolinbay, M, Marchesini, P A, Marchionni, A, Martin, J P, Martínez, L, Marzano, F, Massaro, G G G, Matsuda, T, Mazumdar, K, McBride, P, McMahon, T, Meinholz, T, Merk, M, Merola, L, Meschini, M, Metzger, W J, Mi, Y, Micke, M, Micke, U, Mills, G B, Mir, Y, Mirabelli, G, Mnich, J, Möller, M, Montanet, Lucien, Monteleoni, B, Morand, G, Morand, R, Morganti, S, Morgunov, V, Mount, R, Nagy, E, Napolitano, M, Newman, H, Niessen, L, Nowak, Wolf-Dieter, Onvlee, J, Pandoulas, D, Paternoster, G, Patricelli, S, Pei, Y J, Peng, Y, Perret-Gallix, D, Perrier, J, Perrin, E, Pevsner, A, Pieri, M, Piroué, P A, Plyaskin, V, Pohl, M, Pozhidaev, V, Pols, C L A, Produit, N, Qian, J M, Qureshi, K N, Raghavan, R, Rahal-Callot, G, Razis, P A, Read, K, Ren, D, Ren, Z, Reucroft, S, Riemann, Tord, Rippich, C, Rodríguez, S, Roe, B P, Röhner, M, Rombach, T, Romero, L, Rose, J, Rosier-Lees, S, Rosselet, P, Rubio, Juan Antonio, Rückstuhl, W, Rykaczewski, H, Sachwitz, M, Salicio, J, Sartorelli, G, Sauvage, G, Savin, A, Shchegelskii, V, Schmitz, D, Schmitt, P, Schmitz, P, Schneegans, M, Schöntag, M, Schopper, Herwig Franz, Schotanus, D J, Schreiber, H J, Schulte, R, Schulte, S, Schultze, K, Schütte, J, Schwenke, J, Schwering, G, Sciacca, C, Seiler, P G, Sens, Johannes C, Sheer, I, Shevchenko, S, Shevchenko, V, Shi, X R, Shmakov, K D, Shoutko, V, Shumilov, E, Smirnov, N, Sopczak, André, Souyri, C, Spickermann, T, Spiess, B, Spillantini, P, Starosta, R, Steuer, M, Stickland, D P, Stöhr, B, Stone, H, Strauch, K, Sudhakar, K, Sumner, R L, Suter, H, Sutton, R B, Swain, J D, Syed, A A, Tang, X W, Tarkovsky, E, Thénard, J M, Thomas, E, Timmermans, C, Ting, Samuel C C, Ting, S M, Tong, Y P, Tonutti, M, Tonwar, S C, Tóth, J, Tung, K L, Ulbricht, J, Urbàn, L, Uwer, U, Valente, E, Van de Walle, R T, van der Graaf, H, Vetlitskii, I, Viertel, Gert M, Vikas, P, Vivargent, M, Vogel, H, Vogt, H, Vollmar, M, von Dardel, Guy F, Vorobev, I, Vorobyov, A A, Vuilleumier, L, Walk, W, Wallraff, W, Wang, C R, Wang, G H, Wang, J H, Wang, Q F, Wang, X L, Wang, Y F, Wang, Z M, Weber, J, Weill, R, Wenaus, T J, Wenninger, J, White, M, Wilhelm, R, Willmott, C, Wittgenstein, F, Wright, D, Wu, R J, Wu Sau Lan, Wu, S X, Wu, Y G, Wyslouch, B, Xu, Y D, Xu, Z Z, Xue, Z L, Yan, D S, Yang, B Z, Yang, C G, Yang, G, Yang, K S, Yang, Q Y, Yang, Z Q, Ye, C H, Ye, Q, Yeh, S C, Yin, Z W, You, J M, Zabounidis, C R, Zehnder, L, Zeng, M, Zeng, Y, Zhang, D, Zhang, D H, Zhang, S Y, Zhang, Z P, Zhou, J F, Zhu, R Y, Zichichi, Antonino, Zoll, Julius, IHEF (IoP, FNWI), Laboratoire d'Annecy de Physique des Particules (LAPP), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), Institut de Physique Nucléaire de Lyon (IPNL), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), L3, B., Adeva, O., Adriani, M., Aguilarbenitez, H., Akbari, J., Alcaraz, Aloisio, Alberto, G., Alverson, Alviggi, Mariagrazia, Q., An, H., Anderhub, A. L., Anderson, V. P., Andreev, T., Angelov, L., Antonov, D., Antreasyan, A., Arefiev, T., Azemoon, T., Aziz, P. V., K., P., Bagnaia, J. A., Bakken, L., Baksay, R. C., Ball, S., Banerjee, J., Bao, L., Barone, A., Bay, U., Becker, S., Beingessner, G. L., Bencze, J., Berdugo, P., Berge, B., Bertucci, B. L., Betev, A., Biland, R., Bizzarri, J. J., Blaising, P., Blomeke, B., Blumenfeld, G. J., Bobbink, M., Bocciolini, W., Bohlen, A., Bohm, T., Bohringer, B., Borgia, D., Bourilkov, M., Bourquin, D., Boutigny, J. G., Branson, I. C., Brock, F., Bruyant, J. D., Burger, J. P., Burq, X. D., Cai, D., Campana, C., Camp, M., Capell, F., Carbonara, F., Carminati, A. M., Cartacci, M., Cerrada, F., Cesaroni, Y. H., Chang, U. K., Chaturvedi, M., Chemarin, A., Chen, C., Chen, G. M., Chen, H. F., Chen, H. S., Chen, M., Chen, M. L., Chen, Chiefari, Giovanni, C. Y., Chien, C., Civinini, I., Clare, R., Clare, G., Coignet, N., Colino, V., Commichau, G., Conforto, A., Contin, F., Crijn, X. Y., Cui, T. S., Dai, R., Dalessandro, A., Degre, K., Deiter, E., Dene, P., Dene, F., Denotaristefani, M., Dhina, M., Diemoz, H. R., Dimitrov, C., Dionisi, F., Dittu, R., Dolin, E., Drago, T., Driever, P., Duinker, I., Duran, A., Engler, F. J., Eppling, F. C., Erne, P., Extermann, R., Fabbretti, G., Faber, S., Falciano, S. J., Fan, M., Fabre, J., Fay, J., Fehlmann, H., Fenker, T., Ferguson, G., Fernandez, F., Ferroni, H., Fesefeldt, J., Field, G., Forconi, T., Foreman, K., Freudenreich, W., Friebel, M., Fukushima, M., Gailloud, Y., Galaktionov, E., Gallo, S. N., Ganguli, S. S., Gau, S., Gentile, M., Gettner, M., Glaubman, S., Goldfarb, Z. F., Gong, E., Gonzalez, A., Gordeev, P., Gottlicher, D., Goujon, C., Goy, G., Gratta, A., Grime, C., Grinnell, M., Gruenewald, M., Guanziroli, A., Gurtu, D., Gusewell, H., Haan, S., Hancke, K., Hangarter, M., Harri, D., Harting, F. G., Hartje, C. F., He, A., Heavey, T., Hebbeker, M., Hebert, G., Herten, U., Herten, A., Herve, K., Hilger, H., Hofer, L. S., Hsu, G., Hu, G. Q., Hu, B., Ille, M. M., Ilya, V., Innocente, E., Isiksal, E., Jagel, C., Jakob, B. N., Jin, L. W., Jone, P., Kaaret, R. A., Khan, Y., Kamyshkov, D., Kaplan, Y., Karyotaki, V., Khoze, D., Kirkby, W., Kittel, A., Klimentov, P. F., Klok, A. C., Konig, O., Kornadt, V., Koutsenko, R. W., Kraemer, T., Kramer, V. R., Krastev, W., Krenz, A., Kuhn, V., Kumar, A., Kunin, S., Kwan, V., Lalieu, G., Landi, K., Laniu, D., Lanske, S., Lanzano, P., Lebrun, P., Lecomte, P., Lecoq, P., Lecoultre, I., Leedom, J. M., Legoff, L., Leistam, R., Leiste, J., Lettry, P. M., Levchenko, X., Leyten, C., Li, H. T., Li, J. F., Li, L., Li, P. J., Li, X. G., Li, J. Y., Liao, R., Liu, Y., Liu, Z. Y., Lin, F. L., Linde, D., Linnhofer, W., Lohmann, S., Loko, E., Longo, Y. S., Lu, J. M., Lubber, K., Lubelsmeyer, C., Luci, D., Luckey, L., Ludovici, X., Lue, L., Luminari, W. G., Ma, M., Macdermott, R., Magahiz, M., Maire, P. K., Malhotra, A., Malinin, C., Mana, D. N., Mao, Y. F., Mao, M., Maolinbay, P., Marchesini, A., Marchionni, J. P., Martin, L., Martinez, F., Marzano, G. G., G., T., Matsuda, K., Mazumdar, P., Mcbride, T., Meinholz, M., Merk, Merola, Leonardo, M., Meschini, W. J., Metzger, Y., Mi, M., Micke, U., Micke, G. B., Mill, Y., Mir, G., Mirabelli, J., Mnich, L., Montanet, B., Monteleoni, G., Morand, R., Morand, S., Morganti, V., Morgunov, R., Mount, E., Nagy, Napolitano, Marco, H., Newman, L., Niessen, W. D., Nowak, J., Onvlee, D., Pandoula, Paternoster, Giovanni, Patricelli, Sergio, Y. J., Pei, Y., Peng, D., Perretgallix, J., Perrier, E., Perrin, A., Pevsner, M., Pieri, P. A., Piroue, V., Plyaskin, M., Pohl, V., Pojidaev, C. L., A., N., Produit, J. M., Qian, K. N., Qureshi, R., Raghavan, G., Rahalcallot, P., Razi, K., Read, D., Ren, Z., Ren, S., Reucroft, T., Riemann, C., Rippich, S., Rodriguez, B. P., Roe, M., Rohner, T., Rombach, L., Romero, J., Rose, S., Rosierlee, P., Rosselet, J. A., Rubio, W., Ruckstuhl, H., Rykaczewski, M., Sachwitz, J., Salicio, G., Sauvage, A., Savin, V., Schegelsky, P., Schmitt, D., Schmitz, P., Schmitz, M., Schneegan, M., Schontag, H., Schopper, D. J., Schotanu, H. J., Schreiber, R., Schulte, S., Schulte, K., Schultze, J., Schutte, J., Schwenke, G., Schwering, Sciacca, Crisostomo, P. G., Seiler, J. C., Sen, I., Sheer, V., Shevchenko, S., Shevchenko, X. R., Shi, K., Shmakov, V., Shoutko, E., Shumilov, N., Smirnov, A., Sopczak, C., Souyri, T., Spickermann, B., Spie, P., Spillantini, R., Starosta, M., Steuer, D. P., Stickland, B., Stohr, H., Stone, K., Strauch, K., Sudhakar, R. L., Sumner, H., Suter, R. B., Sutton, A. A., Syed, X. W., Tang, E., Tarkovsky, J. M., Thenard, E., Thoma, C., Timmerman, S. C., C., S. M., Ting, Y. P., Tong, M., Tonutti, S. C., Tonwar, J., Toth, K. L., Tung, J., Ulbricht, L., Urban, U., Uwer, E., Valente, R. T., Vandewalle, H., Vandergraaf, I., Vetlitsky, G., Viertel, P., Vika, M., Vivargent, H., Vogel, H., Vogt, M., Vollmar, G., Vondardel, I., Vorobiev, A. A., Vorobyov, L., Vuilleumier, W., Walk, W., Wallraff, C. R., Wang, G. H., Wang, J. H., Wang, Q. F., Wang, X. L., Wang, Y. F., Wang, Z. M., Wang, J., Weber, R., Weill, T. J., Wenau, J., Wenninger, M., White, R., Wilhelm, C., Willmott, F., Wittgenstein, D., Wright, R. J., Wu, S. L., Wu, S. X., Wu, Y. G., Wu, B., Wyslouch, Z. Z., Xu, Z. L., Xue, D. S., Yan, B. Z., Yang, C. G., Yang, G., Yang, K. S., Yang, Q. Y., Yang, Z. Q., Yang, Q., Ye, C. H., Ye, S. C., Yeh, Z. W., Yin, J. M., You, C., Zabounidi, L., Zehnder, M., Zeng, Y., Zeng, D., Zhang, D. H., Zhang, S. Y., Zhang, Z. P., Zhang, J. F., Zhou, R. Y., Zhu, A., Zichichi, and J., Zoll

Subjects
Physics, Nuclear and High Energy Physics, Range (particle radiation), Particle physics, 010308 nuclear & particles physics, Electron–positron annihilation, Detector, Hadron, High Energy Physics::Phenomenology, Mathematics::History and Overview, 01 natural sciences, Nuclear physics, Cross section (physics), 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], High Energy Physics::Experiment, Neutrino, 010306 general physics, Particle Physics - Experiment
Abstract

We have made a precise measurement of the cross section for e+e−→Z0→hadrons with the L3 detector at LEP, covering the s range from 88.28 to 95.04 GeV. From a fit to the Z0 mass, total width, and the hadronic cross section to be MZ0=91.160 ± 0.024 (experiment) ±0.030(LEP) GeV, ΓZ0=2.539±0.054 GeV, and σh(MZ0)=29.5±0.7 nb. We also used the fit to the Z0 peak cross section and the width todetermine Γinvisible=0.548±0.029 GeV, which corresponds to 3.29±0.17 species of light neutrinos. The possibility of four or more neutrino flavors is thus ruled out at the 4σ confidence level.

Published
1990

40. A determination of the properties of the neutral intermediate vector boson Z0

Author

Tariq Aziz, M. Fabre, Lamberto Luminari, Antonino Zichichi, J. Ossmann, H. Rykaczewski, C.G. Yang, J. Fehlmann, An.A. Vorobyov, T. Matsuda, P. Schmitz, Alexei Klimentov, D. Harting, P. Marchesini, R. A. Khan, P. Lebrun, C. Camps, Ming Zeng, Y. Peng, P. K. Malhotra, A. Kunin, O. Adriani, H. van der Graaf, Crisostomo Sciacca, A. Chen, V. Plyaskin, M. Hebert, T. Driever, J. Fay, R. Wilhelm, G. Fernandez, F. Carbonara, L. Martinez, M. Dhina, F. L. Linde, Marco Pieri, M. Röhner, Pierre Lecomte, F. Crijns, M. G. Alviggi, K. Freudenreich, B.N. Jin, L. Li, H. Jung, J. Onvlee, A. Malinin, R.W. Kraemer, Luciano Romero, Qian Wang, Y.F. Mao, D. Pandoulas, W. J. Metzger, C. F. He, Giorgio Gratta, G. Landi, A. Pevsner, D. Boutigny, J.F. Li, X.G. Li, U. Becker, M. Bourquin, M. Lebeau, A. Arefiev, T. Spickermann, S. Kwan, A. C. König, E. Valenti, F. Cesaroni, E. Thomas, Sandra Consuegra Rodríguez, F. C. Erné, P. Vikas, K. Strauch, R. Leiste, S. Röhner, R. Magahiz, Luciano Barone, H. Suter, Y.F. Wang, J. Y. Liao, Francesco Marzano, T. Riemann, P. Le Coultre, D. Kirkby, Suresh C Tonwar, R. Weill, F. Wittgenstein, L. Ludovici, E. Drago, L. Niessen, C-Q. Li, Q.Y. Yang, A. Gurtu, V. Commichau, H. J. Schreiber, A. Engler, R.B. Sutton, L. Zehnder, S. Banerjee, Z.Y. Lin, Zp Zhang, G. Chiefari, S. Shevchenko, M. Glaubman, D. Güsewell, F. Ferroni, Yu. Kamyshkov, K. Hangarter, X. Leytens, M. Chemarin, M. Koller, R.Y. Zhu, R. Starosta, D. Luckey, Gy L. Bencze, Jianming Qian, G. Hu, M. Kollek, Yu. Galaktionov, J. Alcaraz, S. Beingessner, Y. Zeng, N. Smirnov, W. Krenz, F. J. Eppling, D. S. Yan, M. Bocciolini, S. Rosier-Lees, G. Herten, Gyorgy Bencze, Dimitri Bourilkov, Samuel C.C. Ting, M. Harris, Carlos Willmott, A. Böhm, G. Coignet, R. Mermod, D. Kaplan, A. Heavy, T. Ferguson, M. Gailloud, W. Karpinski, J. Schwenke, X. Y. Cui, Konrad Deiters, Alberto Aloisio, A. Ricker, A. Grimes, W. Friebel, G. Faber, L. Urbàn, P. Schmitt, J.G. Branson, J. Mnich, Z.F. Gong, Steven Goldfarb, Oliver Kornadt, M. Pohl, W. Wallraff, S. Hancke, F. DeNotaristefani, A. Sopczak, J. Schütte, R.J. Wu, R. Morand, Z. L. Xue, M. Guanziroli, Marco Meschini, Th. Meinholz, D. Antreasyan, W. Ruckstuhl, Corinne Goy, R. Schulte, Howard A. Stone, T.S. Dai, J. Berdugo, E. Shumilov, J. Zoll, D. P. Stickland, P. McBride, P. A. Piroué, J. H. Field, V. Souvorov, T. Foreman, D.N. Mao, C. Souyri, M. Schöntag, W. Böhlen, G. Viertel, M. Moeller, F. Bruyant, V. Morgunov, P. J. Li, D. Zhang, X.W. Tang, Zhuoxiang Ren, Y. Karyotakis, R. Bizzarri, V. Shoutko, T. Böhringer, Y. Mir, J.M. Lubbers, B. Stöhr, R. Dolin, C. H. Ye, R. Liu, J. M. You, P. Berges, I.C. Brock, J.M. Thenard, A.M. Cartacci, C. Zabounidis, A. Kuhn, M.L. Chen, H. S. Chen, C. Dionisi, M. Gruenewald, N. Produit, D. Wright, B. Monteleoni, H.R. Dimitrov, A. Schetkovsky, S. X. Wu, Alain Hervé, A. Schultz von Dratzig, G. A. Yang, M. Gettner, M. Maire, Z. W. Yin, K. Lübelsmeyer, J. A. Bakken, P.F. Klok, A.L. Andersson, Piero Spillantini, Lawrence W. Jones, G. Mirabelli, P.V.K.S. Baba, X.R. Shi, S.Y. Zhang, S. N. Ganguli, B. Borgia, F.G. Hartjes, A. A. Syed, K. Lanius, M. Sassowsky, H.F. Chen, J. Bao, G.H. Wang, Y.J. Pei, A. Tavenrath, M. Tonutti, S.C. Yeh, G. Sauvage, P. Prokofiev, M. Fukushima, J. Ulbricht, B. Ille, G. Rahal-Callot, J. J. Blaising, Wolfgang Lohmann, A. Degré, H. Vogt, L. Antonov, C. Maña, Giovanni Paternoster, Marcella Diemoz, B. Bertucci, A. Bay, D. Campana, F. Dittus, U. Uwer, Igor Vorobiev, M. Steuer, C.L.A. Pols, G. Forconi, Y. H. Chang, J.P. Burq, Bz Yang, S. Patricelli, M. Merk, V. Pieri, J. Weber, E. Perrin, Nicanor Colino, C. Rippich, J. Salicio, B. Lindemann, W.-D. Nowak, Q. Ye, D. H. Zhang, K. Schultze, R. T. Van de Walle, H. Haan, E. Tarkovsky, V. Schegelsky, Panos A Razis, Y. Mi, C. Timmermans, Z.Z. Xu, J. M. Le Goff, H.T. Li, K. Hilgers, J. Perrier, D. Lanske, H. Anderhub, Raffaello D'Alessandro, G. Schwering, Qi An, C. Grinnell, B. Spiess, Vineet Kumar, S. Lökös, P. Blömeke, M. Schneegans, L. Montanet, J.C. Sens, X. Lue, U. K. Chaturvedi, K.S. Yang, Y. S. Lu, M. Vivargent, G.B. Mills, M. Sachwitz, J. P. Martin, Carlo Civinini, M. Maolinbay, I. Clare, T.J. Wenaus, Leonardo Merola, A. Gordeev, M. Micke, X. De Bouard, P. Duinker, Simonetta Gentile, U. Micke, Jérôme Rose, U. Herten, I. Vetlitsky, W. Walk, A. Marchionni, P. Göttlicher, D. Linnhofer, L. Baksay, H. Akbari, Kenneth Francis Read, Vincenzo Innocente, G. Gavrilov, Z.Q. Yang, H. Newman, G. Conforto, Kajari Mazumdar, M. Aguilar-Benitez, V.G. Shevchenko, V. Koutsenko, D.J. Schotanus, V.R. Krastev, T. Azemoon, R. Mount, R.C. Ball, Adrian Biland, Boleslaw Wyslouch, X. D. Cai, I. Duran, C.Y. Chien, H. U. Martyn, H. Vogel, Mingshui Chen, K.D. Shmakov, S. J. Fan, E. Gonzalez, E. Jagel, I. Sheer, M. White, S. Morganti, X. L. Wang, J. A. Rubio, L. Leistam, Marcos Cerrada, P.G. Seiler, E. Dénes, D. Ren, D.W. Schmitz, Peter Denes, K. N. Qureshi, S. Lanzano, Bernardo Adeva, J.H. Wang, B. P. Roe, Paolo Bagnaia, M. Capell, G.G.G. Massaro, A. Contin, V. Khoze, R. Siedling, Alexander Savin, D. Perret-Gallix, H. S. Fesefeldt, Robert Clare, W.G. Ma, E. Nagy, Z. M. Wang, Ph. Rosselet, Thomas Hebbeker, Paul Lecoq, M. Napolitano, K. Sudhakar, S. Volkov, J. D. Burger, B. L. Betev, L.S. Hsu, Jozsef Toth, M. Jongmanns, J. Lettry, Claudio Luci, Elisabetta Gallo, S. Reucroft, H. Fenker, G. Morand, R. Raghavan, Y.P. Tong, Laurent Vuilleumier, E. Isiksal, W. Kittel, R. L. Sumner, V.L. Telegdi, J. Wenninger, V. Pojidaev, S. L. Wu, Speranza Falciano, Yanwen Liu, C. Y. Wang, S.S. Gau, J. F. Zhou, Y.G. Wu, M. MacDermott, G.M. Chen, P. Extermann, I. Leedom, H. Hofer, K. L. Tung, Egidio Longo, G. J. Bobbink, M. M. Ilyas, R. Fabbretti, Philip Kaaret, IHEF (IoP, FNWI), B., Adeva, O., Adriani, M., Aguilarbenitez, H., Akbari, J., Alcaraz, Aloisio, Alberto, Alviggi, Mariagrazia, Q., An, H., Anderhub, A. L., Andersson, L., Antonov, D., Antreasyan, A., Arefiev, T., Azemoon, T., Aziz, P. V., K., P., Bagnaia, J. A., Bakken, L., Baksay, R. C., Ball, S., Banerjee, J., Bao, L., Barone, A., Bay, U., Becker, S., Beingessner, G. L., Bencze, G., Bencze, J., Berdugo, P., Berge, B., Bertucci, B. L., Betev, A., Biland, R., Bizzarri, J. J., Blaising, P., Blomeke, G. J., Bobbink, M., Bocciolini, W., Bohlen, A., Bohm, T., Bohringer, B., Borgia, D., Bourilkov, M., Bourquin, D., Boutigny, J. G., Branson, I. C., Brock, F., Bruyant, J. D., Burger, J. P., Burq, X. D., Cai, D., Campana, C., Camp, M., Capell, F., Carbonara, A. M., Cartacci, M., Cerrada, F., Cesaroni, Y. H., Chang, U. K., Chaturvedi, M., Chemarin, A., Chen, C., Chen, G. M., Chen, H. F., Chen, H. S., Chen, M., Chen, M. L., Chen, Chiefari, Giovanni, C. Y., Chien, C., Civinini, I., Clare, R., Clare, G., Coignet, N., Colino, V., Commichau, G., Conforto, A., Contin, F., Crijn, X. Y., Cui, T. S., Dai, R., Dalessandro, X., Debouard, A., Degre, K., Deiter, E., Dene, P., Dene, F., Denotaristefani, M., Dhina, M., Diemoz, H. R., Dimitrov, C., Dionisi, F., Dittu, R., Dolin, E., Drago, T., Driever, P., Duinker, I., Duran, A., Engler, F. J., Eppling, F. C., Erne, P., Extermann, R., Fabbretti, G., Faber, S., Falciano, S. J., Fan, M., Fabre, J., Fay, J., Fehlmann, H., Fenker, T., Ferguson, G., Fernandez, F., Ferroni, H., Fesefeldt, J., Field, G., Forconi, T., Foreman, K., Freudenreich, W., Friebel, M., Fukushima, M., Gailloud, Y., Galaktionov, E., Gallo, S. N., Ganguli, S. S., Gau, G., Gavrilov, S., Gentile, M., Gettner, M., Glaubman, S., Goldfarb, Z. F., Gong, E., Gonzalez, A., Gordeev, P., Gottlicher, C., Goy, G., Gratta, A., Grime, C., Grinnell, M., Gruenewald, M., Guanziroli, A., Gurtu, D., Gusewell, H., Haan, K., Hangarter, S., Hancke, M., Harri, D., Harting, F. G., Hartje, C. F., He, A., Heavey, T., Hebbeker, M., Hebert, G., Herten, U., Herten, A., Herve, K., Hilger, H., Hofer, L. S., Hsu, G., Hu, G. Q., Hu, B., Ille, M. M., Ilya, V., Innocente, E., Isiksal, E., Jagel, B. N., Jin, L. W., Jone, M., Jongmann, H., Jung, P., Kaaret, R. A., Khan, Y., Kamyshkov, D., Kaplan, W., Karpinski, Y., Karyotaki, V., Khoze, D., Kirkby, W., Kittel, A., Klimentov, P. F., Klok, M., Kollek, M., Koller, A. C., Konig, O., Kornadt, V., Koutsenko, R. W., Kraemer, V. R., Krastev, W., Krenz, A., Kuhn, V., Kumar, A., Kunin, S., Kwan, G., Landi, K., Laniu, D., Lanske, S., Lanzano, M., Lebeau, P., Lebrun, P., Lecomte, P., Lecoq, P., Lecoultre, I., Leedom, J. M., Legoff, L., Leistam, R., Leiste, J., Lettry, X., Leyten, C., Li, H. T., Li, J. F., Li, L., Li, P. J., Li, X. G., Li, J. Y., Liao, R., Liu, Y., Liu, Z. Y., Lin, F. L., Linde, B., Lindemann, D., Linnhofer, W., Lohmann, S., Loko, E., Longo, Y. S., Lu, J. M., Lubber, K., Lubelsmeyer, C., Luci, D., Luckey, L., Ludovici, X., Lue, L., Luminari, W. G., Ma, M., Macdermott, R., Magahiz, M., Maire, P. K., Malhotra, A., Malinin, C., Mana, D. N., Mao, Y. F., Mao, M., Maolinbay, P., Marchesini, A., Marchionni, J. P., Martin, L., Martinez, H. U., Martyn, F., Marzano, G. G., G., T., Matsuda, K., Mazumdar, P., Mcbride, T., Meinholz, M., Merk, R., Mermod, Merola, Leonardo, M., Meschini, W. J., Metzger, Y., Mi, M., Micke, U., Micke, G. B., Mill, Y., Mir, G., Mirabelli, J., Mnich, M., Moeller, L., Montanet, B., Monteleoni, G., Morand, R., Morand, S., Morganti, V., Morgunov, R., Mount, E., Nagy, Napolitano, Marco, H., Newman, L., Niessen, W. D., Nowak, J., Onvlee, J., Ossmann, D., Pandoula, Paternoster, Giovanni, Patricelli, Sergio, Y. J., Pei, Y., Peng, D., Perretgallix, J., Perrier, E., Perrin, A., Pevsner, M., Pieri, V., Pieri, P. A., Piroue, V., Plyaskin, M., Pohl, V., Pojidaev, C. L., A., N., Produit, P., Prokofiev, J. M., Qian, K. N., Qureshi, R., Raghavan, G., Rahalcallot, P., Razi, K., Read, D., Ren, Z., Ren, S., Reucroft, A., Ricker, T., Riemann, C., Rippich, S., Rodriguez, B. P., Roe, M., Rohner, S., Rohner, L., Romero, J., Rose, S., Rosierlee, P., Rosselet, J. A., Rubio, W., Ruckstuhl, H., Rykaczewski, M., Sachwitz, J., Salicio, M., Sassowsky, G., Sauvage, A., Savin, V., Schegelsky, A., Schetkovsky, P., Schmitt, D., Schmitz, P., Schmitz, M., Schneegan, M., Schontag, D. J., Schotanu, H. J., Schreiber, R., Schulte, A. S., Vondratzig, K., Schultze, J., Schutte, J., Schwenke, G., Schwering, Sciacca, Crisostomo, P. G., Seiler, J. C., Sen, I., Sheer, V., Shevchenko, S., Shevchenko, X. R., Shi, K., Shmakov, V., Shoutko, E., Shumilov, R., Siedling, N., Smirnov, A., Sopczak, V., Souvorov, C., Souyri, T., Spickermann, B., Spie, P., Spillantini, R., Starosta, M., Steuer, D. P., Stickland, B., Stohr, H., Stone, K., Strauch, K., Sudhakar, R. L., Sumner, H., Suter, R. B., Sutton, A. A., Syed, X. W., Tang, E., Tarkovsky, A., Tavenrath, V. L., Telegdi, J. M., Thenard, E., Thoma, C., Timmerman, S. C., C., S. M., Ting, Y. P., Tong, M., Tonutti, S. C., Tonwar, J., Toth, K. L., Tung, J., Ulbricht, L., Urban, U., Uwer, E., Valente, R. T., Vandewalle, H., Vandergraaf, I., Vetlitsky, G., Viertel, P., Vika, M., Vivargent, H., Vogel, H., Vogt, S., Volkov, I., Vorobiev, A., Vorobyov, L., Vuilleumier, W., Walk, W., Wallraff, C. Y., Wang, G. H., Wang, J. H., Wang, Q. F., Wang, X. L., Wang, Y. F., Wang, Z. M., Wang, J., Weber, R., Weill, T. J., Wenau, J., Wenninger, M., White, R., Wilhelm, C., Willmott, F., Wittgenstein, D., Wright, R. J., Wu, S. L., Wu, S. X., Wu, Y. G., Wu, B., Wyslouch, Z. Z., Xu, Z. L., Xue, D. S., Yan, B. Z., Yang, C. G., Yang, G., Yang, K. S., Yang, Q. Y., Yang, Z. Q., Yang, Q., Ye, C. H., Ye, S. C., Yeh, Z. W., Yin, J. M., You, C., Zabounidi, L., Zehnder, M., Zeng, Y., Zeng, D., Zhang, D. H., Zhang, S. Y., Zhang, Z. P., Zhang, J. F., Zhou, R. Y., Zhu, A., Zichichi, and J., Zoll

Subjects
Physics, Nuclear and High Energy Physics, Particle physics, Partial width, Muon, Branching fraction, Electron–positron annihilation, Hadron, Vector boson, Nuclear physics, High Energy Physics::Experiment, Neutrino, Nuclear Experiment, Particle Physics - Experiment
Abstract

We report the results of first physics runs of the L3 detector at LEP. Based on 2538 hadron events, we determined the mass m z 0 and the width Γ z 0 of the intermediate vector boson Z 0 to be m z 0 =91.132±0.057 GeV (not including the 46 MeV LEP machine energy uncertainty) and Γ z 0 =2.588±0.137 GeV. We also determined Γ invisible =0.567±0.080 GeV, corresponding to 3.42±0.48 number of neutrino flavors. We also measured the muon pair cross section and determined the branching ratio Γ μμ = Γ h =0.056±0.006. The partial width of Z 0 →e + e − is Γ ee =88±9±7 MeV.

Published
1989

41. STUDIES OF HADRONIC EVENT STRUCTURE AND COMPARISONS WITH QCD MODELS AT THE Z(0) RESONANCE

Author

Atul Gurtu, K. Deiters, Y. J. Pei, Pablo Garcia-Abia, Alain Hervé, Jj Blaising, A. C. Weber, Zhenghao Xu, T. Kramer, B. P. Roe, A. Bay, A. Arefiev, Zheng Wang, R. Leiste, Carlo Civinini, M. Maolinbay, D. Linnhofer, D.N. Mao, A. Bujak, Oliver Kornadt, M. Pohl, P. Schmitz, Mariagrazia Alviggi, A. Krivshich, G. Raven, X.G. Li, R. Malik, M. Caria, A. Koulbardis, F. Cesaroni, M. Aguilar-Benitez, S. Rosier-Lees, B. Monteleoni, Federico Carminati, V. Koutsenko, Herwig Schopper, R. Barillère, I. Vetlitsky, K. Freudenreich, F. Sticozzi, C. Spartiotis, Maurizio Biasini, J. Y. Liao, D. Boutigny, G. Mirabelli, H.F. Chen, A. Kasser, Guofan Hu, Yu. Galaktionov, M. White, M. Gailloud, M. S. Sarakinos, T. E. Coan, J. G. Branson, J. Alcaraz, Steven Ahlen, Yu. Kamyshkov, B. L. Betev, Marta Felcini, Z. W. Yin, S. N. Ganguli, K. Lübelsmeyer, Piero Spillantini, Emilio Leonardi, A. Degré, J. Schütte, E. Dénes, R. Sehgal, Tariq Aziz, Xl Wang, F. Marzano, G. Coignet, W. Krenz, R.J. Wu, R. Bock, G. M. Bilei, T. Angelov, Francesco Becattini, M. Capell, M.L. Chen, M. Vivargent, C. Maña, S. Schulte, Mw Gruenewald, R. Morand, Z. L. Xue, M. Merk, P. Vikas, K. Lanius, J. M. Lubbers, G. Tsipolitis, C. R. Wang, J. Krizmanic, G. B. Mills, L. Baksay, R. Rosmalen, Cheng Chen, L. Z. Sun, M. Schneegans, F. Bruyant, Adrian Biland, W. J. Burger, Samuel C.C. Ting, G. Herten, K. Schmiemann, Jianming Qian, Howard A. Stone, G. Hu, M. Guanziroli, A. M. Cartacci, R. Raghavan, A. C. König, Laurent Vuilleumier, S. J. Fan, J. M. Salicio, H. El Mamouni, K. N. Qureshi, Yuehong Xie, Roberto Battiston, C. Zaccardelli, I. C. Brock, W. W. Kinnison, W. Friebel, C. G. Yang, G. H. Wang, Lamberto Luminari, Christine Buisson, M. Sachwitz, K. Sudhakar, B. Borgia, Steven Goldfarb, G. Passaleva, Crisostomo Sciacca, J. Wenninger, Marco Pieri, S. Lanzano, Bernardo Adeva, J. Ulbricht, Marcella Diemoz, Raffaello D'Alessandro, A. Engler, U. Herten, J. S. Kapustinsky, D. P. Stickland, V. Pojidaev, Z. Y. Lin, Zhuoxiang Ren, E. Gonzales, S. Röhner, F. Wittgenstein, J. B. Ye, P. Arce, C. Grinnell, Carlos Willmott, J. P. Martin, Leonardo Merola, K. S. Kumar, R. Mount, Y. Mir, C. H. Ye, Speranza Falciano, Y. F. Wang, D. Goujon, R. C. Ball, Pierre Lecomte, G. Sartorelli, S. Patricelli, Giovanni Ambrosi, M. Wadhwa, D. J. Schotanus, L. Ludovici, M. Chmeissani, Alberto Aloisio, A. Ricker, Gerard Fernandez, R. Fabbretti, H. S. Fesefeldt, Kajari Mazumdar, H. T. Li, I. Clare, J. Busenitz, Sc Yeh, T. Azemoon, E. Drago, G. Schwering, L. Romero, G. Von Dardel, L. Niessen, D. Z. Shen, J. A. Bakken, G. Landi, M. L. Brooks, J. M. You, S. Khokhar, T.R. McMahon, Th. Meinholz, Jozsef Toth, N. Produit, O. Rind, X. J. Yan, S. Müller, A. Malinin, P. Göttlicher, Vincenzo Innocente, A. Marin, J. Lettry, Claudio Luci, E. Shumilov, Simone Paoletti, Wt Lin, X. W. Tang, I. Sheer, Elisabetta Gallo, Q. Ye, S. X. Wu, Bolek Wyslouch, Qian Wang, R. Bizzarri, D. Pandoulas, D. Fernandez, P. A. Piroué, Bz Yang, Marcos Cerrada, F. DeNotaristefani, Xd Cai, G. A. Yang, T. Spickermann, X. R. Shi, Yanwen Liu, C. Neyer, S. S. Gau, T. J. Wenaus, M. Bourquin, L. Leistam, P.V.K.S. Baba, D. Gele, V. Shoutko, Stefan Kirsch, Felicitas Pauss, H. R. Dimitrov, B. N. Jin, K. Strauch, Sw. Banerjee, Manjit Kaur, R.B. Sutton, Bernard Ille, H. Nowak, D. DiBitonto, Ph. Rosselet, E. Valente, O. Fackler, Sabine Riemann, L. Urbán, H. L. Zhuang, V. Plyaskin, A. A. Syed, C. Dionisi, A. Sopczak, M. Steuer, G. Forconi, M. Fukushima, J. D. Swain, H. R. Gustafson, S. Reucroft, Y. H. Chang, W. Wallraff, H. Akbari, Daqiang Zhang, M. Rescigno, S. Shotkin, M. Lenti, B.C. Stringfellow, J. Weber, P. Le Coultre, A. Nadtochy, P. McBride, Jiunn-Wei Chen, M. Tonutti, D. McNally, Chenjie Gu, M. T. Dova, M. Yzerman, F. Crijns, W. Y. Chen, D. Perret-Gallix, D. Antreasyan, An.A. Vorobyov, H. Anderhub, P. Berges, T. Matsuda, George Alverson, B. Zhou, J. M. Le Goff, H. O. Cohn, D. H. Wright, C. F. He, K. Hangarter, M. Hebert, Qi An, A. Böhm, O. Adriani, Panos A Razis, G. S. Sanders, Jun Guo, B. Lindemann, P. G. Seiler, J. A. Rubio, X. Leytens, G. Viertel, Z. F. Gong, H. Janssen, K.S. Yang, P. Kapinos, D. Duchesneau, J. P. Burq, Dimitri Bourilkov, Lucas Taylor, G. Finocchiaro, P. Blömeke, J. D. Burger, R. Starosta, P. Duinker, Vineet Kumar, X. T. Cui, A. Klimentov, G. Rahal-Callot, D. Luckey, Gy L. Bencze, Reinhard W. Schulte, Stéphane Jézéquel, Hans J. Vogel, J. Perrier, W.G. Ma, S. Morganti, Kenneth Francis Read, D.W. Schmitz, G.G.G. Massaro, Simonetta Gentile, Marco Meschini, D. Hauschildt, F. C. Erné, J. Schwenke, M. Möller, D. Kirkby, J. Berdugo, X. Y. Cui, Robert Clare, S. Beingessner, Z.Q. Yang, M. Fabre, R. L. Summer, Thomas Hebbeker, Paul Lecoq, R. W. Kraemer, K. Schultze, H. Suter, M. Napolitano, J. Mnich, F. Ferroni, L. Martinez-Laso, A. Atamanchuk, P. Zemp, D. Lanske, Georgi Sultanov, F. Plasil, Mingshui Chen, Fl Linde, P. Marchesini, T. S. Dai, R. A. Khan, Ming Zeng, E. Soderstrom, H. S. Chen, R. de Asmundis, L. Servoli, A. Rubbia, T. Foreman, V. R. Krastev, M. Pauluzzi, G. Chiefari, S. Shevchenko, Y. Zeng, J. Bao, M. Röhner, A. Pevsner, F. Behner, T. Driever, N. Yunus, W. Kittel, D. Ren, J. Shukla, V. P. Andreev, G.J. Bobbink, U. Vikas, M. Chemarin, Y.F. Mao, A. Contin, N. E. Moulai, R. T. Van de Walle, G. M. Chen, G. Gratta, I. Scott, Barry Blumenfeld, E. Fiandrini, Christopher George Tully, E. Nagy, Valery Schegelsky, Antonino Zichichi, L. J. Gutay, U. Becker, G. Sauvage, Wolfgang Lohmann, I. Duran, Ph Fisher, H. Rykaczewski, Giovanni Organtini, D. M. Lee, Y. Karyotakis, H. Vogt, B. Bertucci, F. J. Eppling, L. W. Jones, D. S. Yan, M. Bocciolini, I. Vorobiev, S. Chung, Harvey B Newman, S. M. Ting, K. Hilgers, Attilio Santocchia, Jean Fay, Nicanor Colino, M. Dhina, L. Antonov, M. N. Kienzle-Focacci, J.H. Wang, P. K. Malhotra, H. A. Rizvi, A. Kunin, Hafeez R Hoorani, W. J. Metzger, A. Tsaregorodtsev, J. Behrens, P. J. Li, P. Lebrun, BT Bouwens, U. Uwer, A. Chen, J. Salicio, Ren-Yuan Zhu, Luciano Barone, Q.Y. Yang, H. J. Schreiber, E. Brambilla, A. Hasan, Y. D. Xu, U. K. Chaturvedi, Y. S. Lu, Jérôme Rose, J. H. Field, C. Y. Chien, C. Li, Peter Denes, Paolo Bagnaia, Y. Mi, S. C. Tonwar, Frank Filthaut, Thomas Ferguson, M. MacDermott, M. A. Niaz, C. J.W.P. Timmermans, P. Extermann, I. Leedom, H. Hofer, K. L. Tung, Egidio Longo, J.C. Sens, M. M. Ilyas, R. Weill, Zhidong Zhang, A. L. Anderson, F. Marion, Ying Wu, J. F. Zhou, Laboratoire d'Annecy de Physique des Particules (LAPP), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), Institut de Physique Nucléaire de Lyon (IPNL), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), CMS, Institut de Physique des 2 Infinis de Lyon (IP2I Lyon), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS), L3, B., Adeva, O., Adriani, M., Aguilarbenitez, S., Ahlen, H., Akbari, J., Alcaraz, Aloisio, Alberto, G., Alverson, Alviggi, Mariagrazia, G., Ambrosi, Q., An, H., Anderhub, A. L., Anderson, V. P., Andreev, T., Angelov, L., Antonov, D., Antreasyan, P., Arce, A., Arefiev, A., Atamanchuk, T., Azemoon, T., Aziz, P. V., K., P., Bagnaia, J. A., Bakken, L., Baksay, R. C., Ball, S., Banerjee, J., Bao, R., Barillere, L., Barone, R., Battiston, A., Bay, F., Becattini, U., Becker, F., Behner, J., Behren, S., Beingessner, G. L., Bencze, J., Berdugo, P., Berge, B., Bertucci, B. L., Betev, M., Biasini, A., Biland, G. M., Bilei, R., Bizzarri, J. J., Blaising, P., Blomeke, B., Blumenfeld, G. J., Bobbink, M., Bocciolini, R., Bock, A., Bohm, B., Borgia, D., Bourilkov, M., Bourquin, D., Boutigny, B., Bouwen, E., Brambilla, J. G., Branson, I. C., Brock, M., Brook, F., Bruyant, C., Buisson, A., Bujak, J. D., Burger, W. J., Burger, J. P., Burq, J., Busenitz, X. D., Cai, M., Capell, M., Caria, F., Carminati, A. M., Cartacci, M., Cerrada, F., Cesaroni, Y. H., Chang, U. K., Chaturvedi, M., Chemarin, A., Chen, C., Chen, G. M., Chen, H. F., Chen, H. S., Chen, J., Chen, M., Chen, M. L., Chen, W. Y., Chen, Chiefari, Giovanni, C. Y., Chien, M., Chmeissani, S., Chung, C., Civinini, I., Clare, R., Clare, T. E., Coan, H. O., Cohn, G., Coignet, N., Colino, A., Contin, F., Crijn, X. T., Cui, X. Y., Cui, T. S., Dai, R., Dalessandro, R., Deasmundi, A., Degre, K., Deiter, E., Dene, P., Dene, F., Denotaristefani, M., Dhina, D., Dibitonto, M., Diemoz, H. R., Dimitrov, C., Dionisi, M. T., Dova, E., Drago, T., Driever, D., Duchesneau, P., Duinker, I., Duran, H., Elmamouni, A., Engler, F. J., Eppling, F. C., Erne, P., Extermann, R., Fabbretti, M., Fabre, S., Falciano, S. J., Fan, O., Fackler, J., Fay, M., Felcini, T., Ferguson, D., Fernandez, G., Fernandez, F., Ferroni, H., Fesefeldt, E., Fiandrini, J., Field, F., Filthaut, G., Finocchiaro, P. H., Fisher, G., Forconi, T., Foreman, K., Freudenreich, W., Friebel, M., Fukushima, M., Gailloud, Y., Galaktionov, E., Gallo, S. N., Ganguli, P., Garciaabia, S. S., Gau, D., Gele, S., Gentile, S., Goldfarb, Z. F., Gong, E., Gonzale, P., Gottlicher, D., Goujon, G., Gratta, C., Grinnell, M., Gruenewald, C., Gu, M., Guanziroli, J. K., Guo, A., Gurtu, H. R., Gustafson, L. J., Gutay, K., Hangarter, A., Hasan, D., Hauschildt, C. F., He, T., Hebbeker, M., Hebert, G., Herten, U., Herten, A., Herve, K., Hilger, H., Hofer, H., Hoorani, G., Hu, G. Q., Hu, B., Ille, M. M., Ilya, V., Innocente, H., Janssen, S., Jezequel, B. N., Jin, L. W., Jone, A., Kasser, R. A., Khan, Y., Kamyshkov, P., Kapino, J. S., Kapustinsky, Y., Karyotaki, M., Kaur, S., Khokhar, M. N., Kienzlefocacci, W. W., Kinnison, D., Kirkby, S., Kirsch, W., Kittel, A., Klimentov, A. C., Konig, O., Kornadt, V., Koutsenko, A., Koulbardi, R. W., Kraemer, T., Kramer, V. R., Krastev, W., Krenz, A., Krivshich, J., Krizmanic, K. S., Kumar, V., Kumar, A., Kunin, G., Landi, K., Laniu, D., Lanske, S., Lanzano, P., Lebrun, P., Lecomte, P., Lecoq, P., Lecoultre, D. M., Lee, I., Leedom, J. M., Legoff, L., Leistam, R., Leiste, M., Lenti, E., Leonardi, J., Lettry, X., Leyten, C., Li, H. T., Li, P. J., Li, X. G., Li, J. Y., Liao, W. T., Lin, Z. Y., Lin, F. L., Linde, B., Lindemann, D., Linnhofer, Y., Liu, W., Lohmann, E., Longo, Y. S., Lu, J. M., Lubber, K., Lubelsmeyer, C., Luci, D., Luckey, L., Ludovici, L., Luminari, W. G., Ma, M., Macdermott, P. K., Malhotra, R., Malik, A., Malinin, C., Mana, D. N., Mao, Y. F., Mao, M., Maolinbay, P., Marchesini, F., Marion, A., Marin, J. P., Martin, L., Martinezlaso, F., Marzano, G. G., G., T., Matsuda, K., Mazumdar, P., Mcbride, T., Mcmahon, D., Mcnally, T., Meinholz, M., Merk, Merola, Leonardo, M., Meschini, W. J., Metzger, Y., Mi, G. B., Mill, Y., Mir, G., Mirabelli, J., Mnich, M., Moller, B., Monteleoni, R., Morand, S., Morganti, N. E., Moulai, R., Mount, S., Muller, A., Nadtochy, E., Nagy, Napolitano, Marco, H., Newman, C., Neyer, M. A., Niaz, L., Niessen, H., Nowak, G., Organtini, D., Pandoula, S., Paoletti, G., Passaleva, Patricelli, Sergio, M., Pauluzzi, F., Pau, Y. J., Pei, D., Perretgallix, J., Perrier, A., Pevsner, M., Pieri, P. A., Piroue, F., Plasil, V., Plyaskin, M., Pohl, V., Pojidaev, N., Produit, J. M., Qian, K. N., Qureshi, R., Raghavan, G., Rahalcallot, G., Raven, P., Razi, K., Read, D., Ren, Z., Ren, M., Rescigno, S., Reucroft, A., Ricker, S., Riemann, O., Rind, H. A., Rizvi, B. P., Roe, M., Rohner, S., Rohner, L., Romero, J., Rose, S., Rosierlee, R., Rosmalen, P., Rosselet, A., Rubbia, J. A., Rubio, H., Rykaczewski, M., Sachwitz, J., Salicio, J. M., Salicio, G. S., Sander, A., Santocchia, M. S., Sarakino, G., Sartorelli, G., Sauvage, V., Schegelsky, K., Schmiemann, D., Schmitz, P., Schmitz, M., Schneegan, H., Schopper, D. J., Schotanu, S., Shotkin, H. J., Schreiber, J., Shukla, R., Schulte, S., Schulte, K., Schultze, J., Schutte, J., Schwenke, G., Schwering, Sciacca, Crisostomo, I., Scott, R., Sehgal, P. G., Seiler, J. C., Sen, L., Servoli, I., Sheer, D. Z., Shen, S., Shevchenko, X. R., Shi, E., Shumilov, V., Shoutko, E., Soderstrom, A., Sopczak, C., Spartioti, T., Spickermann, P., Spillantini, R., Starosta, M., Steuer, D. P., Stickland, F., Sticozzi, H., Stone, K., Strauch, B. C., Stringfellow, K., Sudhakar, G., Sultanov, R. L., Summer, L. Z., Sun, H., Suter, R. B., Sutton, J. D., Swain, A. A., Syed, X. W., Tang, L., Taylor, C., Timmerman, S. C., C., S. M., Ting, M., Tonutti, S. C., Tonwar, J., Toth, A., Tsaregorodtsev, G., Tsipoliti, C., Tully, K. L., Tung, J., Ulbricht, L., Urban, U., Uwer, E., Valente, R. T., Vandewalle, I., Vetlitsky, G., Viertel, P., Vika, U., Vika, M., Vivargent, H., Vogel, H., Vogt, G., Vondardel, I., Vorobiev, A. A., Vorobyov, L., Vuilleumier, M., Wadhwa, W., Wallraff, C. R., Wang, G. H., Wang, J. H., Wang, Q. F., Wang, X. L., Wang, Y. F., Wang, Z. M., Wang, A., Weber, J., Weber, R., Weill, T. J., Wenau, J., Wenninger, M., White, C., Willmott, F., Wittgenstein, D., Wright, R. J., Wu, S. X., Wu, Y. G., Wu, B., Wyslouch, Y. Y., Xie, Y. D., Xu, Z. Z., Xu, Z. L., Xue, D. S., Yan, X. J., Yan, B. Z., Yang, C. G., Yang, G., Yang, K. S., Yang, Q. Y., Yang, Z. Q., Yang, C. H., Ye, J. B., Ye, Q., Ye, S. C., Yeh, Z. W., Yin, J. M., You, N., Yunu, M., Yzerman, C., Zaccardelli, P., Zemp, M., Zeng, Y., Zeng, D. H., Zhang, Z. P., Zhang, B., Zhou, J. F., Zhou, R. Y., Zhu, H. L., Zhuang, and A., Zichichi

Subjects
Particle physics, Physics and Astronomy (miscellaneous), MULTIPLICITY DISTRIBUTIONS, MONTE-CARLO SIMULATION, Monte Carlo method, Parton, 01 natural sciences, Nuclear physics, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], PERTURBATIVE QCD, CHARGED-PARTICLE, Nuclear Experiment, 010306 general physics, Parton shower, GeneralLiterature_REFERENCE(e.g.,dictionaries,encyclopedias,glossaries), Engineering (miscellaneous), ELECTRON-POSITRON ANNIHILATION, Quantum chromodynamics, Physics, QUANTUM CHROMODYNAMICS, 010308 nuclear & particles physics, JET PRODUCTION-RATES, Perturbative QCD, E+E-ANNIHILATION, SOFT GLUON INTERFERENCE, Hadronization, Initial and final state radiation, High Energy Physics::Experiment, Z0 RESONANCE, Particle Physics - Experiment, Factorial moment
Abstract

The structure of hadronic events fromZ 0 decay is studied by measuring event shape variables, factorial moments, and the energy flow distribution. The distributions, after correction for detector effects and initial and final state radiation, are compared with the predictions of different QCD Monte Carlo programs with optimized parameter values. These Monte Carlo programs use either the second order matrix element or the parton shower evolution for the perturbative QCD calculations and use the string, the cluster, or the independent fragmentation model for hadronization. Both parton shower andO(α 2 s matrix element based models with string fragmentation describe the data well. The predictions of the model based on parton shower and cluster fragmentation are also in good agreement with the data. The model with independent fragmentation gives a poor description of the energy flow distribution. The predicted energy evolutions for the mean values of thrust, sphericity, aplanarity, and charge multiplicity are compared with the data measured at different center-of-mass energies. The parton shower based models with string or cluster fragmentation are found to describe the energy dependences well while the model based on theO(α 2 s calculation fails to reproduce the energy dependences of these mean values.

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42. Measurement of Ga and Gv, the Neutral Current Coupling-constants To Leptons

Author

Adeva, B., Oscar Adriani, Aguilarbenitez, M., Akbari, H., Alcaraz, J., Aloisio, A., Alverson, G., Alviggi, M. G., An, Q., Anderhub, H., Andersson, A. L., Andreev, V. P., Angelov, T., Antonov, L., Antreasyan, D., Arefiev, A., Auroy, B., Azemoon, T., Aziz, T., P. V. K., Bagnaia, P., Bakken, J. A., Baksay, L., Ball, R. C., Banerjee, S., Bao, J., Barone, L., Bay, A., Becker, U., Beingessner, S., Bencze, G. L., Berdugo, J., Berges, P., Bertucci, B., Betev, B. L., Biland, A., Bizzarri, R., Blaising, J. J., Blomeke, P., Blumenfeld, B., Bobbink, G. J., Bocciolini, M., Bohlen, W., Bohm, A., Bohringer, T., Borgia, B., Bourilkov, D., Bourquin, M., Boutigny, D., Branson, J. G., Brock, I. C., Bruyant, F., Burger, J. D., Burq, J. P., Cai, X. D., Campana, D., Camps, C., Capell, M., Carbonara, F., Carminati, F., Cartacci, A. M., Cerrada, M., Cesaroni, F., Chang, Y. H., Chaturvedi, U. K., Chemarin, M., Chen, A., Chen, C., Chen, G. M., Chen, H. F., Chen, H. S., Chen, M., Chen, M. L., Chiefari, G., Chien, C. Y., Civinini, C., Clare, I., Clare, R., Coignet, G., Colino, N., Commichau, V., Conforto, G., Contin, A., Crijns, F., Cui, X. Y., Dai, T. S., Raffaello D'Alessandro, Degre, A., Deiters, K., Denes, E., Denes, P., Denotaristefani, F., Dhina, M., Diemoz, M., Dimitrov, H. R., Dionisi, C., Dittus, F., Dolin, R., Drago, E., Driever, T., Duinker, P., Duran, I., Engler, A., Eppling, F. J., Erne, F. C., Extermann, P., Fabbretti, R., Faber, G., Falciano, S., Fan, S. J., Fabre, M., Fay, J., Fehlmann, J., Fenker, H., Ferguson, T., Fernandez, G., Ferroni, F., Fesefeldt, H., Field, J., Forconi, G., Foreman, T., Freudenreich, K., Friebel, W., Fukushima, M., Gailloud, M., Galaktionov, Y., Gallo, E., Ganguli, S. N., Gau, S. S., Gentile, S., Gettner, M., Glaubman, M., Goldfarb, S., Gong, Z. F., Gonzalez, E., Gordeev, A., Gottlicher, P., Goujon, D., Goy, C., Gratta, G., Grimes, A., Grinnell, C., Gruenewald, M., Guanziroli, M., Gurtu, A., Gusewell, D., Haan, H., Hancke, S., Hangarter, K., Harris, M., Harting, D., Hartjes, F. G., C F, He, Heavey, A., Hebbeker, T., Hebert, M., Herten, G., Herten, U., Herve, A., Hilgers, K., Hofer, H., Hsu, L. S., Hu, G., G Q, Hu, Ille, B., Ilyas, M. M., Innocente, V., Isiksal, E., Jagel, E., Jakobs, C., Jin, B. N., Jones, L. W., Kaaret, P., Khan, R. A., Kamyshkov, Y., Kaplan, D., Karyotakis, Y., Khoze, V., Kirkby, D., Kittel, W., Klimentov, A., Klok, P. F., Konig, A. C., Kornadt, O., Koutsenko, V., Kraemer, R. W., Kramer, T., Krastev, V. R., Krenz, W., Kuhn, A., Kumar, V., Kunin, A., Kwan, S., Lalieu, V., Landi, G., Lanius, K., Lanske, D., Lanzano, S., Lebrun, P., Lecomte, P., Lecoq, P., Lecoultre, P., Leedom, I., Legoff, J. M., Leistam, L., Leiste, R., Lettry, J., Leytens, X., Li, C., H T, Li, J F, Li, Li, L., P J, Li, X G, Li, Liao, J. 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