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1. Fractional Stress Relaxation Model of Rock Freeze-Thaw Damage

Author

Q. Liu, W. Chen, J. K. Guo, R. F. Li, D. Ke, Y. Wu, W. Tian, and X. Z. Li

Subjects
Materials of engineering and construction. Mechanics of materials, TA401-492
Abstract

Freeze-thaw cycle is a type of fatigue loading, and rock stress relaxation under freeze-thaw cycles takes into account the influence of the freeze-thaw cycle damage and deterioration. Rock stress relaxation under freeze-thaw cycles is one of the paramount issues in tunnel and slope stability research. To accurately describe the mechanical behaviour of stress relaxation of rocks under freeze-thaw, the software element is constructed based on the theory of fractional calculus to replace the ideal viscous element in the traditional element model. The freeze-thaw damage degradation of viscosity coefficient is considered. A new three-element model is established to better reflect the nonlinear stress relaxation behavior of rocks under freeze-thaw. The freeze-thaw and stress relaxation of rock are simulated by ABAQUS, the relevant model parameters are determined, and the stress relaxation equation of rock under freeze-thaw cycle is obtained based on numerical simulation results. The research shows that the test results are consistent with the calculated results, indicating that the constitutive equation can better describe the stress relaxation characteristics of rocks under freeze-thaw and provide theoretical basis for surrounding rock support in cold region.

Published
2021
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2. Simultaneous Detection of Optical Flares of the Magnetically Active M Dwarf Wolf 359

Author

Han-Tang Lin, Wen-Ping Chen, Jinzhong Liu, Xuan Zhang, Yu Zhang, Andrew Wang, Shiang-Yu Wang, Matthew J. Lehner, C. Y. Wen, J. K. Guo, Y. H. Chang, M. H. Chang, Anli Tsai, Chia-Lung Lin, C. Y. Hsu, and Wing Ip

Subjects
Astrophysics - Solar and Stellar Astrophysics, Space and Planetary Science, FOS: Physical sciences, Astronomy and Astrophysics, Solar and Stellar Astrophysics (astro-ph.SR)
Abstract

We present detections of stellar flares of Wolf\,359, an M6.5 dwarf in the solar neighborhood (2.41~pc) known to be prone to flares due to surface magnetic activity. The observations were carried out from 2020 April 23 to 29 with a 1-m and a 0.5-m telescope separated by nearly 300~km in Xinjiang, China. In 27~hr of photometric monitoring, a total of 13 optical flares were detected, each with a total energy of $\gtrsim 5 \times 10^{29}$~erg. The measured event rate of about once every two hours is consistent with those reported previously in radio, X-ray and optical wavelengths for this star. One such flare, detected by both telescopes on 26 April, was an energetic event with a released energy of nearly $10^{33}$~erg. The two-telescope lightcurves of this major event sampled at different cadences and exposure timings enabled us to better estimate the intrinsic flare profile, which reached a peak of up to 1.6 times the stellar quiescent brightness, that otherwise would have been underestimated in the observed flare amplitudes of about $0.4$ and $0.8$, respectively, with single telescopes alone. The compromise between fast sampling so as to resolve a flare profile versus a longer integration time for higher photometric signal-to-noise provides a useful guidance in the experimental design of future flare observations., Comment: 16 pages, 10 figures, 3 tables

Published
2022
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4. List of Contributors

Author

J.K.C. Abbott, R.I. Boughton, Z.-F. Chai, J.-S. Chen, X.-M. Chen, T.M. Cook, X. Duan, D.G. Evans, S.-H. Feng, J.-K. Guo, G.-Y. Hong, M.-C. Hong, Z.-Q. Hu, C.-S. Huang, D.-G. Huang, X.-B. Huang, Q.-S. Huo, L. Jiang, H.-M. Kou, G.-H. Li, J. Li, J.-Y. Li, Y.-L. Li, J.Y.-S. Lin, J. Liu, K.-S. Liu, X.-S. Liu, X.-Y. Liu, J. Lu, X.-L. Ma, G.Q. Max Lu, L. Mei, W.-Q. Pang, S.-Z. Qiao, Z.-A. Qiao, W.-Q. Shi, B.A. Smith, Q. Su, X.-Z. Tang, D.-L. Tian, M.-L. Tong, A.-M. Wang, J.-T. Wang, J.-Y. Wang, X. Wei, L.-X. Wu, S.-X. Xiao, R.-R. Xu, Y. Xu, Z.-L. Xue, G.-Y. Yang, N. Ye, J.-H. Yu, H.-F. Zhang, and J.-L. Zhang

Published
2017
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5. Interaction of organic acids and pH on multi-heavy metal extraction from alkaline and acid mine soils

Author

R. W. Feng, Y. Z. Ding, J. K. Guo, and Z. G. Song

Subjects
Environmental Engineering, Waste management, fungi, Oxalic acid, Contamination, Metal, chemistry.chemical_compound, chemistry, visual_art, Environmental chemistry, Soil water, Leaching (pedology), visual_art.visual_art_medium, Environmental Chemistry, Chelation, Revegetation, General Agricultural and Biological Sciences, Citric acid
Abstract

Vegetation at mining sites can produce increased heavy metal leaching by the organic acids and protons originating from root secretion and litter degradation. Batch experiments were conducted to investigate the effects of organic acids and pH on the extraction of Pb, Cd, Zn and Cu from an alkaline mine soil (sampled from a mining site of Chenzhou City, Hunan Province) and an acid mine soil (sampled from a mining site of Daxin county, Guangxi Province). The results showed that in the presence of organic acids (acetic, oxalic, malic, fumaric, tartaric and citric acids) at pH 7, the extraction of Pb, Cd, Zn and Cu from the acid mine soil was much higher than that from the alkaline mine soil, in which only citric acid with higher concentration was capable of extracting some heavy metals. Citric acid had the strongest ability in extracting heavy metals, followed by oxalic acid. Heavy metal extraction dramatically decreased with increasing pH. Moreover, at low pH, oxalic acid promoted the risk of Cu leaching; at high pH, the leaching of Pb, Zn, Cd and Cu was enhanced by both oxalic and citric acids. This indicated that those plants, which can produce substantial citric acid or oxalic acid by root secretion and litter degradation, should not be selected for the revegetation of mining sites.

Published
2013
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6. The effects of heat stress on protein metabolism in lactating Holstein cows

Author

J. K. Guo, D.P. Bu, Lance H. Baumgard, X.M. Nan, S.Y. Quan, M. V. Sanz Fernandez, and S.T. Gao

Subjects
0301 basic medicine, Hot Temperature, Protein metabolism, Urine, Heat Stress Disorders, Excretion, 03 medical and health sciences, chemistry.chemical_compound, Rumen, Animal science, Lactation, Genetics, medicine, Animals, Dry matter, Amino Acids, chemistry.chemical_classification, Chromatography, Cross-Over Studies, 0402 animal and dairy science, food and beverages, Fatty acid, Humidity, 04 agricultural and veterinary sciences, Milk Proteins, 040201 dairy & animal science, Neutral Detergent Fiber, 030104 developmental biology, medicine.anatomical_structure, chemistry, Animal Science and Zoology, Cattle, Female, Food Science
Abstract

Heat stress (HS) decreases milk protein synthesis beyond what would be expected based on the concomitant reduction in feed intake. The aim of the present study was to evaluate the direct effects of HS on milk protein production. Four multiparous, lactating Holstein cows (101 ± 10 d in milk, 574 ± 36 kg of body weight, 38 ± 2 kg of milk/d) were individually housed in environmental chambers and randomly allocated to 1 of 2 groups in a crossover design. The study was divided into 2 periods with 2 identical experimental phases (control phase and trial phase) within each period. During phase 1 or control phase (9 d), all cows were housed in thermal neutral conditions (TN; 20°C, 55% humidity) and fed ad libitum. During phase 2 or treatment phase (9 d), group 1 was exposed to cyclical HS conditions (32 to 36°C, 40% humidity) and fed ad libitum, whereas group 2 remained in TN conditions but was pair-fed (PFTN) to their HS counterparts to eliminate the confounding effects of dissimilar feed intake. After a 30-d washout period in TN conditions, the study was repeated (period 2), inverting the environmental treatments of the groups relative to period 1: group 2 was exposed to HS and group 1 to PFTN conditions. Compared with PFTN conditions, HS decreased milk yield (17.0%), milk protein (4.1%), milk protein yield (19%), 4% fat-corrected milk (23%), and fat yield (19%). Apparent digestibility of dry matter, organic matter, neutral detergent fiber, acid detergent fiber, crude protein, and ether extract was increased (11.1-42.9%) in HS cows, as well as rumen liquor ammonia (before feeding 33.2%; after feeding 29.5%) and volatile fatty acid concentration (45.3%) before feeding. In addition, ruminal pH was reduced (9.5 and 6% before and after feeding, respectively) during HS. Heat stress decreased plasma free amino acids (AA; 17.1%) and tended to increase and increased blood, urine, and milk urea nitrogen (17.2, 243, and 24.5%, respectively). Further, HS cows had reduced plasma glucose (8%) and nonesterified fatty acid (39.8%) concentrations compared with PFTN controls. These data suggest that HS increases systemic AA utilization (e.g., decreased plasma AA and increased nitrogen excretion), a scenario that limits the AA supply to the mammary gland for milk protein synthesis. Furthermore, the increase in AA requirements during HS might represent the increased need for gluconeogenic precursors, as HS is thought to prioritize glucose utilization as a fuel at the expense of nonesterified fatty acids.

Published
2016

7. Ground-based transit observations of the HAT-P-18, HAT-P-19, HAT-P-27/WASP40 and WASP-21 systems

Author

F. J. Aceituno, Diana P. Kjurkchieva, Martin Vaňko, T. O. B. Schmidt, A. Özdönmez, S. Buder, M. Haas, J. K. Guo, Ch. Adam, K. Werner, E. Güzel, Tansel Ak, A. Pannicke, M. Hackstein, Laurence A. Marschall, J. G. Schmidt, Rolf Chini, Markus Mugrauer, M. Kitze, C. Marka, Tolga Guver, Theodor Pribulla, A. Dathe, Wen Ping Chen, J. Budaj, V. Wolf, Xin Zhou, David H. Cohen, Eric L. N. Jensen, Ronny Errmann, S. Hellmich, M. Seeliger, Ralph Neuhäuser, Ersin Gogus, S. Richter, Ch. Ginski, D. Puchalski, A. Ide, Berk Aydin, J. M. Ohlert, Dinko Dimitrov, J. Greif, Raetz, Emil Kundra, Zhenyu Wu, M. Fernandez, Stefano Mottola, Matthias Mallonn, B. Dincel, and Ege Üniversitesi

Subjects
Orbital elements, Physics, Earth and Planetary Astrophysics (astro-ph.EP), Planets and satellites: individual: WASP-21b, Planets and satellites: individual: HAT-P-27b/WASP-40b, Astronomy, FOS: Physical sciences, Astronomy and Astrophysics, Astrophysics, Radius, HAT-P-18b HAT-P-19b HAT-P-27b/WASP-40b WASP-21b, Exoplanet, Astrophysics - Solar and Stellar Astrophysics, Space and Planetary Science, System parameters, Planets and satellites: individual: HAT-P-19b, Planets and satellites: individual: HAT-P-18b, Transit (astronomy), Astrophysics::Earth and Planetary Astrophysics, Solar and Stellar Astrophysics (astro-ph.SR), Astrophysics - Earth and Planetary Astrophysics
Abstract

As part of our ongoing effort to investigate transit timing variations (TTVs) of known exoplanets, we monitored transits of the four exoplanets HAT-P-18b, HAT-P-19b, HAT-P-27b/WASP-40b and WASP-21b. All of them are suspected to show TTVs due to the known properties of their host systems based on the respective discovery papers. During the past three years 46 transit observations were carried out, mostly using telescopes of the Young Exoplanet Transit Initiative. The analyses are used to refine the systems' orbital parameters. In all cases we found no hints for significant TTVs, or changes in the system parameters inclination, fractional stellar radius and planet-to-star radius ratio. However, comparing our results with those available in the literature shows that we can confirm the already published values. © 2015 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society.

Published
2015

8. Narciclasine alters chloroplast membrane structure and inhibits 5‐aminolevulinic acid and chlorophyll binding protein accumulation in wheat (Triticum aestivum) leaves

Author

Yum-Shing Wong, Lixin Zhang, Yurong Bi, Kung-hing Yung, and J. K. Guo

Subjects
Chlorophyll a, Narciclasine, food and beverages, Horticulture, Biology, biology.organism_classification, behavioral disciplines and activities, Chloroplast, chemistry.chemical_compound, Greening, chemistry, Chlorophyll, mental disorders, Etiolation, Botany, Chlorophyll binding, Biophysics, Narcissus tazetta, Agronomy and Crop Science
Abstract

Narciclasine (NCS), an Amaryllidaceae alkaloid from Narcissus tazetta bulbs, is a potent plant growth inhibitor. It shows a broad range of inhibitory effects on seed germination and seedling growth in wheat (Triticum aestivum). In this study, the chlorophyll content of light‐grown wheat seedlings was markedly reduced in the presence of NCS. In etiolated wheat leaf sections, the greening process initiated upon illumination was inhibited by NCS. The block of chlorophyll accumulation in the presence of NCS was most probably due to the block of the formation of 5‐aminolevulinic acid, an essential chlorophyll precursor. Western blot analysis showed that the formation of light harvesting chlorophyll a/b binding protein (LHCII) was also inhibited by NCS. Electron microscopy studies provided direct observation that the formation of chloroplast and internal membrane systems were blocked when etioplasts were illuminated in the presence of NCS. Thus, our study showed that NCS inhibited chlorophyll and chlor...

Published
2003
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9. Microstructure and Mechanical Properties of SiC/zirconia-toughened Mullite Nanocomposites Prepared from Mixtures of Mullite Gel, 2Y-TZP, and SiC Nanopowders

Author

X. H. Jin, L. Gao, J. K. Guo, and L. H. Gui

Subjects
Nanocomposite, Materials science, Mechanical Engineering, Sintering, Mullite, Condensed Matter Physics, Microstructure, Hot pressing, Grain growth, Mechanics of Materials, General Materials Science, Cubic zirconia, Grain boundary, Composite material
Abstract

SiC/ZTM (zirconia-toughened mullite) nanocomposites were prepared by hot pressing mixtures of mullite gel, 2Y-TZP, and SiC nanopowders. The intimate mixing of Al2O3 and SiO2 components in the starting powder prevented intermediate ZrSiO4 phase formation during sintering. Addition of nano-sized SiC significantly retarded the matrix grain growth, making the microstructure much finer and more uniform. Transmission electron microscopy and high-resolution transmission electron microscopy revealed that many SiC nanoparticles were found in mullite and ZrO2 grains, and low-energy grain boundaries and mullite–liquid interfaces parallel to the {110} planes of rodlike mullite grains were formed. It is deduced that the formation of rodlike mullite grains is the result of the preferential development of these low-energy grain boundaries and mullite–liquid interfaces. The mechanical properties of the SiC/ZTM nanocomposite showed significant improvement over those of ZTM, and further enhancement in the mechanical properties was achieved by combinative strengthening with nano- and micro-sized SiC.

Published
2002
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10. Model analysis of boundary residual stress and its effect on toughness in thin boundary layered yttria-stabilized tetragonal zirconia polycrystalline ceramics

Author

Jianlin Shi, J. K. Guo, and Z. L. Lu

Subjects
Toughness, Materials science, Mechanical Engineering, Condensed Matter Physics, Intergranular fracture, Stress (mechanics), Boundary layer, Mechanics of Materials, Residual stress, Phase (matter), visual_art, visual_art.visual_art_medium, General Materials Science, Ceramic, Crystallite, Composite material
Abstract

The average thermal residual stress in a continuous boundary phase in polycrystalline ceramic composites was calculated with a simple thin boundary layer model, and a criterion for the self-cracking of the boundary phase was derived under a certain assumption. From the proposed model, the toughness of the materials can be increased by both tensile and compressive stress at boundaries when the crack propagates transgranularly. The toughness will be increased when the stress at boundary is compressive for intergranular fracture mode. The maximum increase is predicted to be achieved at boundary phase contents below 33%. The experimental results for yttria-stabilized tetragonal zirconia polycrystalline ceramics doped with different kinds of grain-boundary phase is in a qualitative agreement with the prediction by the model, but the toughness increase is largely dependent on the distribution feature of glass phases.

Published
2000
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11. 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. GRUENEWALD, C. GU, M. GUANZIROLI, J. K. GUO, V. K. GUPTA, A. GURTU, H. R. GUSTAFSON, L. J. GUTAY, 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, 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. 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, 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, 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, J. MNICH, M. MOLLER, 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, 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, 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. SANCHEZ, G. S. SANDERS, A. SANTOCCHIA, M. E. SARAKINOS, 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, D. Z. SHEN, 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, S. C. C., S. M. TING, O. TOKER, M. TONUTTI, S. C. TONWAR, J. TOTH, G. TROWITZSCH, A. TSAREGORODTSEV, G. TSIPOLITIS, C. TULLY, T. TUUVA, 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, 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, Z. Z. XU, Z. L. XUE, D. S. YAN, B. Z. YANG, C. G. YANG, G. YANG, X. Y. YAO, C. H. YE, J. B. YE, Q. YE, S. C. YEH, Z. W. YIN, J. M. YOU, N. YUNUS, M. YZERMAN, C. ZACCARDELLI, 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., Battiston, R., Bay, A., Becattini, F., Becker, U., 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, I., 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., 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., Fiandrini, E., Field, J. H., Filthaut, F., Fisher, P. H., Forconi, G., Fredj, L., Freudenreich, K., Fukushima, M., Gailloud, M., Galaktionov, Y., Gallo, E., Ganguli, S. N., Garciaabia, P., Gentile, S., Gerald, J., 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., 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., 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., 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., 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., 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, J., Moller, M., 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., 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., 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., Sanchez, E., Sanders, G. S., Santocchia, A., Sarakinos, M. E., 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., Shen, D. Z., 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., S. C. C., Ting, S. M., Toker, O., Tonutti, M., Tonwar, S. C., Toth, J., Trowitzsch, G., Tsaregorodtsev, A., Tsipolitis, G., Tully, C., Tuuva, T., 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, 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., Z. Z., Xu, Xue, Z. L., Yan, D. S., Yang, B. Z., Yang, C. G., Yang, G., Yao, X. Y., C. H., Ye, J. B., Ye, Ye, Q., Yeh, S. C., Yin, Z. W., You, J. M., Yunus, N., Yzerman, M., Zaccardelli, C., 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, 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

12. A test of quantum electrodynamics in the reaction e+e− → γγ(γ)

Author

P. Spillantini, N. E. Moulai, V. Plyaskin, E. Fiandrini, B. C. Stringfellow, Yu. Galaktionov, J. Alcaraz, M. Brooks, G. S. Sanders, M. T. Dova, S. Röhner, F. Wittgenstein, M. S. Sarakinos, T. Spickermann, H. S. Chen, G. Landi, R. W. Kraemer, M.L. Chen, J. D. Burger, Helmut Vogel, L. Ludovici, M. Chmeissani, E. Valente, Simone Paoletti, H. R. Gustafson, D. McNally, O. Fackler, X. Leytens, G. Viertel, S. Morganti, Y. Y. Xie, J. Schwenke, X. Y. Cui, L. Martinez-Laso, A. Marin, B. N. Jin, A. C. König, A. Atamanchuk, G. Rahal-Callot, Marcella Diemoz, K. L. Tung, H. J. Schreiber, R. Mount, W. J. Burger, J. P. Burq, B. Wysouch, Manjit Kaur, C. Dionisi, Valery Schegelsky, Antonino Zichichi, Ph Fisher, H. Rykaczewski, Giovanni Organtini, K. Schultze, Gerard Fernandez, H. Suter, H. Akbari, Daqiang Zhang, R. Fabbretti, A. Bujak, Adrian Biland, Y. H. Chang, Egidio Longo, D. Lanske, P. Marchesini, X. T. Cui, R. Y. Zhu, J.C. Sens, J. D. Swain, H. Anderhub, George Alverson, H. R. Dimitrov, Y. Karyotakis, Ming Zeng, M. Röhner, S. J. Fan, B. Ille, A. Arefiev, Jozsef Toth, L. Urbán, M. W. Gruenewald, H. Kuitjen, Kajari Mazumdar, K. Hilgers, Igor Vorobiev, G. Tsipolitis, R. T. Van de Walle, S. Khokhar, X. J. Yan, S. Müller, A. Nippe, E. Nagy, J. Lettry, D. Pandoulas, Z. M. Wang, S. Beingessner, M. M. Ilyas, D. Duchesneau, R. Barillère, S. Chung, M. Möller, P.V.K.S. Baba, Attilio Santocchia, L. Z. Sun, Elisabetta Gallo, H. Schopper, E. Sajan, J. G. Branson, Alexander Malinin, T. Ferguson, Felicitas Pauss, M. Caria, J. Mnich, X. R. Shi, M. Capell, K. S. Yang, C. Grinnell, G. Carlino, E. Dénes, M. Dhina, Y. J. Pei, R. Sehgal, Z. F. Gong, M. MacDermott, H. S. Fesefeldt, M. Chemarin, U. K. Chaturvedi, Leonardo Merola, Y. S. Lu, M. Vivargent, W. Friebel, M. A. Niaz, Xd Cai, Simonetta Gentile, A. Böhm, A. Koulbardis, J. Berdugo, P. Lebrun, P. Le Coultre, F. Crijns, Y. G. Wu, P. Schmitz, A. Rubbia, T. Foreman, G. Herten, T. E. Coan, E. Drago, P. G. Seiler, Nicolas Produit, P. McBride, L. Vuilleumier, L. Antonov, A. Sopczak, G. Q. Hu, Jj Blaising, D. P. Stickland, P. Extermann, D.W. Schmitz, G.G.G. Massaro, Claudio Luci, T. Kramer, Y. Mir, T. Azemoon, C. H. Ye, U. Herten, Jérôme Rose, I. Leedom, S. Reucroft, K. Freudenreich, H. Hofer, K. Hangarter, H. El Mamouni, M. Guanziroli, J. Busenitz, J. H. Field, C. Y. Chien, H. Newman, S. Shotkin, J. Bao, A. C. Weber, Z. Y. Lin, P. K. Malhotra, H. A. Rizvi, J. M. Salicio, A. Kunin, T. Paul, D.N. Mao, T. J. Wenaus, L. Romero, I. Scott, Wt Lin, Peter Denes, Robert Clare, C. R. Wang, P. Zemp, Z. P. Zhang, R. de Asmundis, J. H. Wang, S. Rosier-Lees, K. Strauch, A. Pevsner, M. Bourquin, X. W. Tang, M. Fukushima, Marcos Cerrada, M. Fabre, F. J. Rodriguez, R. Starosta, D. Luckey, Gy L. Bencze, C. Chen, E. Shumilov, Y. F. Mao, Paolo Bagnaia, M. Lenti, S. P. Ahlen, T. Angelov, Hafeez R Hoorani, K. S. Kumar, Reinhard W. Schulte, Pablo Garcia-Abia, J. Behrens, Jianming Qian, Pierluigi Paolucci, I. Vetlitsky, Alain Hervé, J. A. Bakken, Ph. Rosselet, Thomas Hebbeker, Paul Lecoq, S. S. Gau, M. Napolitano, M. Gailloud, I. C. Brock, H. L. Zhuang, G. Gratta, V. Koutsenko, V. Shoutko, A. Nadtochy, M. Merk, P. Razis, W. J. Metzger, G. Hu, J. Shukla, Stephane Jezequel, M. Sassowsky, Y. Mi, A. Bay, P. Vikas, BT Bouwens, I. Sheer, Carlo Civinini, C-Q. Li, F. Marion, C. Maña, G. Chiefari, M. Maolinbay, G. Raven, An.A. Vorobyov, T. Matsuda, E. Soderstrom, F. Marzano, G. Coignet, W. Krenz, L. Servoli, M. Tonutti, M. Hebert, J. M. Le Goff, D. H. Wright, Carlos Willmott, R. Rosmalen, M. Schneegans, F. Behner, Mingshui Chen, Speranza Falciano, Y. F. Wang, Georgi Sultanov, Z. Q. Yang, R. Weill, Fl Linde, T. S. Dai, T. McMahon, A. L. Anderson, D. M. Lee, M. Aguilar-Benitez, U. Uwer, V. K. Gupta, R. A. Khan, G. Mirabelli, K. N. Qureshi, L. J. Gutay, D. S. Yan, D. Antreasyan, M. White, W. W. Kinnison, J. Y. Liao, R. B. Sutton, M. Pauluzzi, Samuel C.C. Ting, G. H. Wang, O. Adriani, J. Salicio, Lucas Taylor, D. Z. Shen, P. Arce, F. Ferroni, D. Goujon, M. Bocciolini, Steven Goldfarb, P. J. Li, S. C. Tonwar, D. Ren, A. A. Syed, Qi An, J. A. Rubio, Frank Filthaut, K. Sudhakar, T. Driever, H. Janssen, Luciano Barone, K. Lübelsmeyer, A. Engler, R. Bizzarri, J. F. Zhou, F. DeNotaristefani, P. Kapinos, J. Fay, A. Gougas, P. Duinker, Vincenzo Innocente, M. Rescigno, C. F. He, F. Cesaroni, Y. Zeng, J. K. Guo, C. Neyer, U. Vikas, R. J. Wu, G. Passaleva, M. G. Alviggi, S. Riemann, V. P. Andreev, K. Schmeimann, Q. F. Wang, S. Lanzano, A. Klimentov, Giovanni Ambrosi, C. Buisson, D.J. Schotanus, M. Yzerman, Z. Z. Xu, Kenneth Francis Read, Els Koffeman, H. T. Li, Jiunn-Wei Chen, R. D'Allessandro, Emilio Leonardi, J. Schütte, Yu. Kamyshkov, D. Hauschildt, R. Bock, G. Sauvage, F. Plasil, C. Timmermans, G. Schwering, Marco Meschini, H. Vogt, F. C. Erné, W. G. Ma, S. Kirsch, Chenjie Gu, E. Brambilla, M. N. Kienzle-Focacci, A. Hasan, P. Berges, L. Baksay, D. Kirkby, Z. W. Yin, B. Lindemann, Lamberto Luminari, S. X. Wu, Q. Y. Yang, G. Finocchiaro, Xin-Qiang Li, A. Tsaregorodtsev, Davide Piccolo, Maurizio Biasini, Christopher George Tully, J. Perrier, D. DiBitonto, Barry Blumenfeld, B. Z. Yang, J. P. Martin, Marta Felcini, M. Steuer, Wolfgang Lohmann, G. Forconi, Francesco Becattini, B. Bertucci, J. Weber, R. C. Ball, R. Malik, Pierre Lecomte, G. Sartorelli, Nicanor Colino, S. N. Ganguli, S. Schulte, J. M. Lubbers, A. Degré, D. Perret-Gallix, D. Gele, O. Rind, G. B. Mills, E. Gonzalez, Zhuoxiang Ren, M. Wadhwa, A. Kasser, Atul Gurtu, H. Nowak, J. M. You, V. R. Krastev, G. A. Yang, K. Deiters, B. P. Roe, Oliver Kornadt, M. Pohl, Roberto Battiston, W. Wallraff, Gerjan Bobbink, B. Borgia, J. Ulbricht, S. Banerjee, M. Sachwitz, S. C. Yeh, I. Clare, S. Shevchenko, Tariq Aziz, P. Göttlicher, D. Linnhofer, R. Leiste, Federico Carminati, G. M. Bilei, J. B. Ye, Andrea Contin, S. Patricelli, Q. Ye, Y. D. Xu, B. Monteleoni, F. Sticozzi, W. Y. Chen, Crisostomo Sciacca, Marco Pieri, C. Spartiotis, R. Morand, N. Yunus, J. S. Kapustinsky, C. Zaccardelli, Howard A. Stone, Alberto Aloisio, A. Ricker, U. Becker, F. J. Eppling, L. W. Jones, S. M. Ting, Th. Meinholz, Z. L. Xue, P. A. Piroué, B. Zhou, B. C.C. van der Zwaan, A. M. Cartacci, R. Raghavan, W. Kittel, R. L. Sumner, J. Wenninger, V. Pojidaev, H. O. Cohn, A. Chen, A. Krivshich, D. Boutigny, B. L. Betev, X. L. Wang, Luca Lista, D. Fernandez, Yanwen Liu, C. G. Yang, and Dimitri Bourilkov

Subjects
Physics, Nuclear and High Energy Physics, Particle physics, Luminosity (scattering theory), 010308 nuclear & particles physics, Branching fraction, Electron–positron annihilation, 01 natural sciences, lcsh:QC1-999, Nuclear physics, Excited state, 0103 physical sciences, Cutoff, High Energy Physics::Experiment, 010306 general physics, lcsh:Physics
Abstract

We have measured the total and differential cross sections of the reaction e+e− → γγ(γ) at center-of-mass energies around 91 GeV, with an integrated luminosity of 14.2 pb−1. The results are in good agreement with QED predictions. We set lower limits, at 95% confidence level, on the QED cutoff parameters of Λ+ > 139 GeV, Λ− > 108 GeV and on the mass of an excited electron of m e∗ > 127 GeV . We searched for Z0 rare decays with photonic signitures in the final state. Upper limits, at 95% confidence level, for branching ratio of Z0 decaying into π0γ/γγ, νγ and γγγ are 1.2 × 10−4, 1.8 × 10−4, 3.3 × 10−5 respectively.

Published
1992
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13. A test of QCD based on 3-jet events from Z0 decays

Author

R. Leiste, S. Beingessner, J. Mnich, H.R. Dimitrov, G. Wuy, M. Hebert, Panos A Razis, A. Rubbia, P. Duinker, L. Antonov, J. D. Burger, J.C. Sens, A. M. Cartacci, R. Raghavan, A. C. König, Y.P. Tong, Konrad Deiters, M N. Kienzle-Focacci, Alberto Aloisio, A. Ricker, Dimitri Bourilkov, Ren-Yuan Zhu, Luciano Barone, F. Filthaut, D. Lee, P. Schmitz, K. Freudenreich, I. C. Brock, G. Rahal-Callot, Guofan Hu, J. Bao, K. Schultze, E. Tarkovsky, H. Anderhub, M. Yzerman, P. Le Coultre, B. Monteleoni, F. Sticozzi, P. Blömeke, M. Fukushima, A. Gordeev, C. R. Wang, J. Krizmanic, A. Marchionni, V.R. Krastev, Th. Meinholz, N. E. Moulai, D. Gelé, V. Koutsenko, R K. Bock, Q.Y. Yang, V. Commichau, H. J. Schreiber, D. Lanske, G. Bransonj, Raffaello D'Alessandro, C. Grinnell, D.N. Mao, K. Schmiemann, Leonardo Merola, R. Starosta, D. Luckey, Gy L. Bencze, R. Weill, J.M. Qian, Zhidong Zhang, C. Spartiotis, J. Berdugo, Z.Q. Yang, E. Gonzalez, S. Lanzano, Bernardo Adeva, X. W. Tang, I. Sheer, P. A. Piroué, G. Schwering, G. Sauvage, F. De Notaristefani, A. Hasan, M. Gailloud, Reinhard W. Schulte, Steven Goldfarb, F. C. Erné, D.H. Zhang, Y. H. Chang, George Alverson, Vineet Kumar, J.-P. Burq, W. Stoeffl, P. Vikas, R. Barillère, R. L. Sumner, G. H. Wang, A. L. Anderson, J. M. Le Goff, D. H. Wright, R. Malik, Federico Carminati, R. Morand, Z. L. Xue, R.J. Wu, A. Sopczak, S. Riemann, J. Behrens, P. J. Li, P. Lebrun, J. F. Zhou, T. Azemoon, J. Wenninger, G. Mirabelli, H.F. Chen, G. S. Sanders, Z. W. Yin, S. N. Ganguli, J. A. Rubio, S. Schulte, H O. Cohn, E. Isiksal, M. Schneegans, Adrian Biland, B. N. Jin, M. Guanziroli, L. Li, D. Duchesneau, F. Cesaroni, K. Lübelsmeyer, Piero Spillantini, V. Pojidaev, A. Arefiev, M. MacDermott, M W. Grunewald, Howard A. Stone, Zhuoxiang Ren, M. Wadhwa, F. Tonisch, D. J. Schotanus, J. M. You, G. Herten, J. Y. Liao, Harvey B Newman, K. Hilgers, N. Produit, K. Sudhakar, Q. Fan, W. Friebel, F. Behner, U. Uwer, J. P. Martin, A. Chen, J. Salicio, Z. Shend, M. A. Niaz, Marcos Cerrada, M. Rubio, Nikita Smirnov, K.D. Shmakov, S. J. Fan, J. Schütte, G. A. Yang, D. P. Stickland, Zheng Wang, W. Wallraff, A. Degré, J K. Guo, E. Shumilov, Y. Mir, C. H. Ye, Sc Yeh, S. Banerjee, W.G. Ma, S. S. Gau, P.V.K.S. Baba, P. Extermann, R. de Asmundis, I. Leedom, H. Hofer, K. L. Tung, Yueh-Feng Liu, M. Lenti, L. Romero, V. Shoutko, P. Cardenal, W. Kittel, Ht. Li, Qiang Li, M.L. Chen, L.S. Hsu, D. Pandoulas, O. Rind, Tariq Aziz, H. R. Gustafson, A. Klimentov, B. Borgia, J. A. Bakken, M. Sachwitz, H. Suter, Rw. Kramer, F. Marzano, G. Coignet, W. Krenz, W. Kinnison, J. Alcaraz, B. Lindemann, F. Bruyant, M. Möller, A. Engler, M. Bourquin, Gerard Fernandez, Hafeez R. Hoorani, M. Tonutti, W. Ruckstuhl, C. Dionisi, U. K. Chaturvedi, Y. S. Lu, K. Strauch, Valentin V. Khoze, S. X. Wu, S. Patricelli, S. Shevchenko, M. Fabre, R.B. Sutton, An.A. Vorobyov, T. Matsuda, V. Plyaskin, M. Capell, G. Passaleva, T. Spickermann, Jozsef Toth, J. Lettry, Claudio Luci, U. Herten, Georgi Sultanov, Crisostomo Sciacca, Marco Pieri, D. DiBitonto, Jérôme Rose, Ph. Rosselet, Egidio Longo, M. Steuer, M. J. Glaubman, G. Forconi, H S. Chen, J. Weber, Pablo Garcia-Abia, Bernard Ille, H. S. Fesefeldt, Alain Hervé, J. H. Field, G. Trowitzsch, C. Y. Chien, C. Li, Q. Ye, C. Rippich, G. Chiefari, Elisabetta Gallo, T. S. Dai, O. Fackler, R. A. Khan, K. N. Qureshi, A. Bohm, Z.Z. Xu, P. Zemp, Cheng Chen, O. Adriani, X.R. Shi, I. Clare, J. Busenitz, M. T. Dova, R. Bizzarri, M. M. Ilyas, L Z. Sun, D. Perret-Gallix, Y D. Xu, Lucas Taylor, G.B. Mills, R. Magahiz, B. P. Roe, A. A. Syed, A. Savin, H. El Mamouni, I. Scott, Marcella Diemoz, P. Göttlicher, A. Bay, C. Neyer, R. Fabbretti, L. Leistam, S. L. Wu, Speranza Falciano, J. D. Swain, C. Zaccardelli, Jj Blaising, P. Arce, D. Goujon, S. Reucroft, S. Shotkin, A. Kasser, V. P. Andreev, G.J. Bobbink, T. Kramer, M. Chemarin, T. Angelov, K. Lanius, G. Hu, M E. Sarakinos, F. Crijns, P. McBride, J. M. Salicio, G. M. Chen, Yu. Kamyshkov, Vincenzo Innocente, Bz Yang, B T. Bouwens, Carlo Civinini, G. Finocchiaro, L. J. Gutay, Marcel Merk, U. Becker, M. Maolinbay, H. Haan, P. Berges, X. Leytens, Kajari Mazumdar, S. Khokhar, T.R. McMahon, X. J. Yan, M. Maire, J. Perrier, Mariagrazia Alviggi, G. Von Dardel, D. Linnhofer, Carlos Willmott, C. G. Yang, Emilio Leonardi, Y. F. Wang, X.G. Li, F. J. Eppling, L. W. Jones, R. Mount, I. Vetlitsky, D. S. Yan, Z. Y. Lin, Xd Cai, K. S. Kumar, S. M. Ting, A. Bujak, Oliver Kornadt, M. Pohl, R. Liu, D. Antreasyan, W. Y. Chen, Qi An, M. Aguilar-Benitez, I. Duran, H. Janssen, K.S. Yang, L. Baksay, P. Marchesini, Samuel C.C. Ting, S. Muller, Simonetta Gentile, V.G. Shevchenko, G. Gratta, Boleslaw Wyslouch, Kenneth Francis Read, F. Chollet, V. Lalieu, Lamberto Luminari, G. Conforto, S. Rosier-Lees, Ming Zeng, Z. F. Gong, Herwig Schopper, M. White, M. Bocciolini, M. Röhner, R. C. Ball, Pierre Lecomte, G. Sartorelli, Petr Levchenko, Charles Timmermans, R. Rosmalen, A. Malinin, S. Röhner, A. Kunin, Y.F. Mao, F. Wittgenstein, R. T. Van de Walle, L. Ludovici, D. Hauschildt, E. Drago, L. Niessen, P.G. Seiler, E. Valente, D. McNally, T. Driever, Peter Denes, G. Viertel, S. Morganti, J. Schwenke, X. Y. Cui, Paolo Bagnaia, L. Martinez-Laso, L. Urbán, D. Boutigny, Y. Mi, B. L. Betev, E. Dénes, F. Pauss, R. Sehgal, G. Morand, Valery Schegelsky, Xl Wang, Antonino Zichichi, J.M. Lubbers, Ph Fisher, H. Rykaczewski, Thomas Ferguson, C. Tonwars, Y. Karyotakis, D.G. Stringfellow, E. Nagy, M. Vivargent, Christine Buisson, I. Vorobiev, Z. M. Wang, D. Kirkby, F. Plasil, Jean Fay, M. Dhina, Christopher George Tully, T. Foreman, Wolfgang Lohmann, H. Vogt, B. Bertucci, J. Ulbricht, Y Y. Xie, Nicanor Colino, J.H. Wang, P. K. Malhotra, H. A. Rizvi, W. J. Metzger, G.G.G. Massaro, F. Carbonara, F. L. Linde, Wd. Nowak, Qian Wang, C. F. He, J. Peiy, H L. Zhuang, A. Pevsner, Barry Blumenfeld, G. Paternoster, D.W. Schmitz, Robert Clare, Thomas Hebbeker, Paul Lecoq, M. Napolitano, E. Soderstrom, G. Landi, T.J. Wenaus, Manjit Kaur, H. Akbari, J F. Li, Mingshui Chen, D. Ren, J B. Ye, A. Contin, 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), and L3

Subjects
Quantum chromodynamics, Physics, Quark, Nuclear and High Energy Physics, Particle physics, 010308 nuclear & particles physics, High Energy Physics::Lattice, High Energy Physics::Phenomenology, Scalar (mathematics), Elementary particle, Parton, Jet (particle physics), 01 natural sciences, Gluon, Nuclear physics, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], High Energy Physics::Experiment, 010306 general physics, GeneralLiterature_REFERENCE(e.g.,dictionaries,encyclopedias,glossaries), Particle Physics - Experiment, Boson
Abstract

We present a study of 43 000 3-jet events from Z0 boson decays. Both the measured jet energy distributions and the event orientation are reproduced by second order QCD. An alternative model with scalar gluons fails to describe the data. © 1991.

Published
1991
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14. Microwave joining of Bi1.6Pb0.4Sr2Ca2Cu3Oxsuperconductors

Author

J. K. Guo, J. Cai, Li Baoshun, X. X. Huang, T. G. Chen, and X. M. Xie

Subjects
chemistry.chemical_classification, Superconductivity, High-temperature superconductivity, Materials science, Metals and Alloys, Condensed Matter Physics, Microstructure, law.invention, chemistry, law, Condensed Matter::Superconductivity, visual_art, Microwave heating, X-ray crystallography, Materials Chemistry, Ceramics and Composites, visual_art.visual_art_medium, Ceramic, Electrical and Electronic Engineering, Composite material, Inorganic compound, Microwave
Abstract

A new joining method for superconductors by microwave heating has been developed. Bars of microwave-joined Bi-Pb-Sr-Ca-Cu-O ceramic superconductors show good mechanical integrity. After a post-heat treatment the samples show superconducting transition at around 107 K. This is believed to be due to the local heating of the microwave-joining method.

Published
1992
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15. [Participation of septum on the increase of plasma cortisol level induced by stimulation of the greater splanchnic nerve of cats]

Author

Y Q, Zhou, X M, Zhu, Z T, Zhu, J K, Guo, L M, Hu, and W J, Zhou

Subjects
Male, Adrenergic Antagonists, Hydrocortisone, Cats, Animals, Female, Septal Nuclei, Splanchnic Nerves, Phentolamine, Propranolol, Electric Stimulation, Injections, Intraventricular
Abstract

Experimens were performed on 36 cats, showing that stimulation of the central end of the left major splanchnic nerve induced an increase of the plasma cortisol level. The centripetal effect was abolished by lesioning the septal nuclei, just as the same as injection of propranolol into the nuclei; but phentolamine had no such preventive action. All the findings show that it is the noradrenergic beta-receptor system of the septal nuclei that exerts a considerable effect on cortisol secretion.

Published
1995

16. 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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17. Microwave Sintering of Zirconia Toughened Mullite (ZTM)

Author

X. X. Huang, B. S. Li, Jianwang Cai, C. Y. Song, J. K. Guo, and Y. L. Tian

Subjects
Grain growth, Materials science, Sintering, Cubic zirconia, Mullite, Intergranular corrosion, Composite material, High-resolution transmission electron microscopy, Microstructure, Grain size
Abstract

Microwave sintering of zirconia toughened mullite (ZTM) has been performed in a single mode applicator. In comparison with conventional sintering, microwave processing of ZTM leads to a higher density and finer grain size. Microstructure of microwave sintered ZTM was characterized by TEM and HRTEM techniques. The pinning of intergranular ZrO2 dispersoids retarded the grain growth of mullite matrix. The observation of a considerable number of trans-granular microcracks indicates that microcracking toughening is the main toughening mechanism for ZTM.

Published
1994
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18. 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

19. High mass photon pairs in ℓ+ℓ−γγ events at LEP

Author

S. Easo, Samuel C.C. Ting, Pablo Garcia-Abia, V. Plyaskin, Alain Hervé, Konrad Deiters, Alberto Aloisio, A. Ricker, W. Kittel, A. Pevsner, P. A. Piroué, M. T. Dova, X. W. Tang, G. Passaleva, B. Zhou, M. Sachwitz, C. Luci, S. Jezequel, Raffaello D'Alessandro, Carlo Civinini, M. Maolinbay, H. O. Cohn, S. X. Wu, M. Bourquin, R. Fabbretti, D. Antreasyan, L. Urbán, Qi An, H. Janssen, Y. J. Pei, Leonardo Merola, Maurizio Biasini, Marta Felcini, X. Leytens, R. Castello, U. K. Chaturvedi, Roberto Battiston, M. T. Choi, X. R. Shi, A. Kasser, M. Aguilar-Benitez, Herwig Schopper, S. C. Yeh, J. Wenninger, Luca Lista, J. Shukla, P. Kapinos, Francesco Becattini, Y. S. Lu, A. Klimentov, M. Chemarin, H. Hoorani, G. M. Bilei, H. Postema, M. White, M. Fabre, K. Strauch, Ph. Rosselet, H. Anderhub, T. Azemoon, Crisostomo Sciacca, Marco Pieri, J. D. Burger, G. Rahal-Callot, V. K. Gupta, E. Dénes, Kenneth Francis Read, S. N. Ganguli, Jérôme Rose, M. Rescigno, C. Neyer, E. Gonzalez, J. Busenitz, E. Longo, L. Z. Sun, A. A. Syed, X. T. Cui, B. C. Stringfellow, Z. L. Xue, R. Sehgal, T. Aziz, J. Bao, G. Forconi, D. Fernandez, S. Lanzano, Yanwen Liu, Marcos Cerrada, Gy L. Bencze, J. Tóth, D. DiBitonto, Davide Piccolo, F. DeNotaristefani, K. Sudhakar, M. Gruenewald, M. Steuer, Dimitri Bourilkov, Gerjan Bobbink, P. Spillantini, Andrea Contin, Yu. Kamyshkov, B. N. Jin, H. Nowak, J. Weber, D. H. Zhang, R. Barillère, R. Mount, W. Wallraff, Zp Zhang, J. Ulbricht, G. Pascala, R. W. Kraemer, N. E. Moulai, E. Fiandrini, I. Scott, Pierluigi Paolucci, K. Schultze, H. Suter, H.F. Chen, Sabine Riemann, A. Nippe, P. Lebrun, A. Engler, Jianming Qian, Alexander Malinin, J. Behrens, G. Herten, Yu. Galaktionov, J. Alcaraz, D. Lanske, D. Perret-Gallix, E. Koffeman, G. Mirabelli, W. Friebel, G. Hu, H. Kuijten, H. Stone, P. Schmitz, A. Krivshich, T. McMahon, S. Patricelli, W. Riemers, Q. Ye, Z. M. Wang, P. Denes, L. J. Gutay, S. P. Ahlen, Carlos Willmott, R. Bizzarri, M. Brooks, P. Zemp, S. Röhner, F. Wittgenstein, M. Sassowsky, P. Extermann, M. Hebert, R. Weill, K. Hilgers, U. Uwer, J. P. Martin, K. Freudenreich, I. Clare, C. G. Yang, A. Tsaregorodtsev, J. Salicio, R. de Asmundis, L. Djambazov, H. T. Li, R. Y. Zhu, E. Drago, B. L. Betev, D. Duchesneau, A. Chen, I. Duran, A. Marin, J. Y. Liao, J. M. Salicio, C-Q. Li, P. G. Rancoita, J. J. Blaising, Oliver Kornadt, M. Pohl, H. R. Dimitrov, A. M. Cartacci, H. J. Schreiber, B. Ille, P. K. Malhotra, A. L. Anderson, M. Caria, M. Boseti, W. W. Kinnison, E. Brambilla, A. C. König, G. S. Sanders, C. F. He, A. Koulbardis, A. Hasan, Laurent Vuilleumier, R. Leiste, Christoph Paus, J. F. Zhou, W. Y. Chen, Gianpaolo Carlino, S. J. Fan, W. T. Lin, B. Lindemann, G. Terzi, S. Shevchenko, A. Gougas, G. Coignet, M. Diemoz, Z. F. Gong, Y. Mir, C. H. Ye, C. Maña, Z. D. Qi, N. Yunus, B. Monteleoni, F. Sticozzi, M. Gailloud, V. Koutsenko, J.C. Sens, L. Romero, M. Yzerman, Z. Z. Xu, B. Borgia, M. M. Ilyas, B. C.C. van der Zwaan, P. Duinker, V. Pojidaev, G. Finocchiaro, David Stickland, Adrian Biland, P. Arce, P. Berges, P. Bagnaia, J. M. Ma, C. Y. Chien, D. M. Lee, M. N. Kienzle-Focacci, Vincenzo Innocente, F. Ferroni, C. Spartiotis, U. Becker, P. Mcbride, H. Newman, Y. H. Chang, A. Bay, George Alverson, S. C. Tonwar, P. J. Li, H. Vogt, R. Malik, E. Sajan, F. J. Eppling, G. J. Zhou, M. Capell, S. M. Ting, J. K. Guo, J. Field, Y. Zeng, O. Fackler, E. Valente, J. M. Lubbers, H. S. Fesefeldt, H. El Mamouni, C. Chena, D. Wright, Dong-Chul Son, T. Kramer, T. Ferguson, A. Kunin, Zhuoxiang Ren, S. Falciano, Mariagrazia Alviggi, M. Vivargent, M. Wadhwa, D. J. Schotanus, I. Vetlitsky, J. M. You, V. R. Krastev, G. A. Yang, J. Fay, M. Möller, G. Sauvage, G. Chiefari, F. Behner, Andrea Baschirotto, Valery Schegelsky, Antonino Zichichi, S. Banerjee, H. Rykaczewski, Chen Wang, Y. Karyotakis, B. Bouwens, S. Chung, P.V.K.S. Baba, G. Tsipolitis, Attilio Santocchia, M. Dhina, R. Bock, Gerard Fernandez, S. Pensotti, L. Barone, Z. Y. Lin, L. Antonov, G. G.G. Massaro, D. Pandoulas, G. Organtini, Elisabetta Gallo, A. Sopczak, H. A. Rizvi, A. Gurtu, Chenliang Wang, F. Plasil, Mingshui Chen, D. Boutigny, J. Perrier, X. L. Wang, W. J. Metzger, M. Pauluzzi, A. Bujak, Georgi Sultanov, Fl Linde, T. S. Dai, S. Reucroft, Y. Mi, S. Shotkin, R. A. Khan, Helmut Vogel, D. Kirkby, J. T. He, D. Ren, P. Marchesini, J. S. Kapustinsky, P. Vikas, T. Driever, Giovanni Ambrosi, Ming Zeng, R. Rosmalen, L. Luminari, G. Raven, F. Marzano, M. Röhner, A. Degré, J. G. Branson, U. Vikas, Bolek Wyslouch, Frank Filthaut, K. N. Qureshi, S. Goldfarb, J. B. Ye, Chenjie Gu, R. T. Van de Walle, V. P. Andreev, S. Khokhar, S. Müller, I. C. Brock, D. Goujon, J. Mnich, Xd Cai, T. Foreman, D. McNally, Igor Vorobiev, A. Rubbia, K. Mazumdar, D. Gele, Marco Meschini, T. Paul, Y. Y. Xie, J. G. Xu, R. Raghavan, Panos A Razis, M. Fukushima, R. C. Ball, F. Cesaroni, M. Lenti, G. Viertel, G. Gratta, A. Nadtochy, I. Sheer, R. Morand, Pierre Lecomte, G. Sartorelli, G. Schwering, J. M. Le Goff, Christopher George Tully, G. M. Chen, L. Ludovici, E. Leonardi, Werner Lustermann, J. Schwenke, X. Y. Cui, G. B. Mills, P. G. Seiler, J. A. Rubio, A. Arefiev, G. Q. Hu, A. C. Weber, G. Landi, E. Nagy, Wolfgang Lohmann, L. Martinez-Laso, K. S. Kumar, Simone Paoletti, M. MacDermott, W. Krenz, Manjit Kaur, C. Dionisi, B. Bertucci, M. A. Niaz, F. Marion, S. C. Kim, T. E. Coan, A. Atamanchuk, S. Schulte, Nicanor Colino, Z. W. Yin, Simonetta Gentile, I. Leedom, B. Z. Yang, D.W. Schmitz, H. Hofer, Robert Clare, M. S. Sarakinos, W. G. Ma, Thomas Hebbeker, Paul Lecoq, K. L. Tung, J. Berdugo, K. Lübelsmeyer, M. Napolitano, T. J. Wenaus, C. Zaccardelli, H. R. Gustafson, H. S. Chen, L. Servoli, D. Hauschildt, M. Rattaggi, C. Leggett, T. Spickermann, W. J. Burger, D. Z. Shen, M. Guanziroli, M. Schneegans, J. D. Swain, F. C. Erné, Y. F. Wang, A. Böhm, L. Baksay, E. Shumilov, O. Rind, V. Shoutko, S. Rosier-Lees, Felicitas Pauss, M. Tonutti, P. Le Coultre, Stefan Kirsch, G. H. Wang, F. J. Rodriguez, K. Hangarter, J. K. Kim, R. Starosta, D. Luckey, J.A. Bakken, Reinhard W. Schulte, An.A. Vorobyov, M. Merk, P. H. Fisher, S. Morganti, D. S. Yan, O. Adriani, and Lucas Taylor

Subjects
Physics, Nuclear and High Energy Physics, Particle physics, Photon, 010308 nuclear & particles physics, Electron–positron annihilation, Detector, Física, 60 GeV, 7. Clean energy, 01 natural sciences, photon pairs, Nuclear physics, L3 detector, 0103 physical sciences, High mass, Angular dependence, Invariant mass, 010306 general physics, Ciencias Exactas
Abstract

From the analysis of the reactions e + e- → ℓ+ℓ−(nγ) (ℓ = e,μ,τ) we observe four events, e+e−γγ and three μ+μ−γγ, with the invariant mass of the photon pairs close to 60 GeV. These events were selected from a data sample collected in the L3 detector corresponding to 950000 produced Z°'s. More data are necessary to ascertain the origin of these events., Facultad de Ciencias Exactas

Published
1992

20. A direct determination of the number of light neutrino families from e+ e- → vvγ at LEP

Author

T. Hebbeker, M. Diemoz, A. Kunin, D. Perret-Gallix, B. Z. Yang, B. Monteleoni, D. McNally, Y. F. Mao, H. S. Chen, D. Gele, T. Driever, G. J. Bobbink, D. Bourilkov, A. A. Vorobyov, C. Grinnell, H. Janssen, T. Azemoon, T.R. McMahon, J. Fay, D. Kirby, C. Willmott, Q. Li, S. Falciano, U. K. Chaturvedi, H. Stone, B.C. Stringfellow, Yu. Galaktionov, R. Liu, X. J. Yan, P. Kapinos, H. Anderhub, W. Friebel, J. Rose, C. Zaccardelli, Simonetta Gentile, A. Rubbia, M. Bocciolini, Y. F. Wang, Q. Y. Yang, Jozsef Toth, X. R. Shi, P. V.K.S. Baba, Claudio Luci, S. Paoletti, A. Krovshich, R de Asmundis, K. Hilgers, C. Chen, H. A. Rizvi, M. Lenti, A. A. Syed, A. Böhm, H. J. Schreiber, M. Yzerman, R. Raghavan, N. Produit, W. T. Lin, V. R. Krastev, R. J. Wu, L. Z. Sun, H. Hoorani, B. Ille, M. Gailloud, D.N. Mao, C-Q. Li, Z. Q. Yang, D. Pandoulas, J. Bao, J. Behrens, E. Longo, R. Rosmalen, G. Yang, M. MacDermott, G. Hu, T. Angelov, Z. W. Yin, D. S. Yan, K. S. Yang, C. R. Wang, K. Lanius, Z. Y. Lin, Jianming Qian, V. Kumar, P. McBride, G. Landi, G. Organtini, C. Y. Chien, R. Barillère, C. Neyer, J. Ulbricht, R. Bizzarri, S. Reucroft, G. Schwering, I. Leedom, N. E. Moulai, M. Rescigno, Yu. Kamyshkov, A. Biland, M. Möller, M. Röhner, J. Schütte, H. F. Chen, Y. Mir, T. Foreman, S. Shotkin, M. Wadhwa, Bolek Wyslouch, Qian Wang, Vincenzo Innocente, M. Zeng, M. Maolinbay, M. G. Alviggi, W. J. Burger, Thomas Ferguson, Am Cartacci, P. Göttlicher, Mw Gruenewald, G. B. Mills, D. Boutigny, R. Weill, X. G. Li, B. L. Betev, I. Clare, J. Busenitz, D. Duchesneau, O. Fackler, P. Vikas, F. Crijns, M. Biasini, D. Luckey, T. Kramer, Gy L. Bencze, G. Passaleva, P. Spillantini, Y. G. Wu, D. Antreasyan, H. O. Cohn, L. Baksay, F. Bruyant, H. R. Dimitrov, G. Herten, D. Hauschildt, F. Ferroni, M. Hebert, Panos A Razis, W.W. Kinnison, M. Cerrada, S. Riemann, F. Pauss, K. S. Kumar, A. Pevsner, Z. L. Xue, G. Tsipolitis, M. Caria, S. Lanzano, E. Nagy, M. Meschini, Y. Karyotakis, S. Schulte, J. D. Swain, F. Plasil, D. Z. Shen, L. Niessen, Barry Blumenfeld, M. N. Kienzle-Focacci, M. Sachwitz, V. P. Andreev, M. A. Niaz, X. W. Tang, J. Wenninger, L. Leistam, Laurent Vuilleumier, U. Uwer, Ren-Yuan Zhu, H. Vogt, T. Aziz, R. D'Alessandro, Antonino Zichichi, A. Hasan, S. Röhner, Ph Fisher, S. Khokhar, M. Schneegans, R. Battiston, M. Fabre, H. T. Li, H. Hofer, B. Bouwens, P. Blömeke, R. Bock, P. Garcia-Abia, S. Müller, F. Sticozzi, H. El Mamouni, P. Bagnaia, C. Civinni, K. Sudhakar, Fl Linde, M. Capell, A. L. Anderson, T. S. Dai, C. Spartiotis, G. Forconi, M. Fukushima, I. Vetlitsky, S. C. Yeh, G. M. Bilei, Y. H. Chang, J.P. Burq, A. Chen, B. Bertucci, D. Linnhofer, L. Romero, H. Suter, V. Plyaskin, H. R. Gustafson, W. Wallraff, B. N. Jin, G. H. Wang, S. Shevchenko, R. Leiste, H. L. Zhuang, R. A. Khan, J. F. Zhou, M. M. Ilyas, George Alverson, J. A. Bakken, T. J. Wenaus, Z. F. Gong, V. Pojidaev, A. Aloisio, S. C. Tonwar, R. T. Van de Walle, C. H. Ye, J. Weber, A. Nadtochy, G. Chiefari, M. Kaur, Christopher George Tully, A. Savin, T. Matsuda, G. Rahal-Callot, A. Gordeev, M. Vivargent, J. S. Kapustinsky, J. C. Sens, D. P. Stickland, J. M. Lubbers, M. Merk, J. Schwenke, J. M. Le Goff, D. H. Wright, J. P. Martin, S. L. Wu, Lucas Taylor, A. Sopczak, R. Starosta, Wolfgang Lohmann, E. Shumilov, L. Ludovici, G. S. Sanders, R. Malik, S. J. Fan, F. Filthaut, D. Lanske, Jiunn-Wei Chen, D. Zhang, S. Rosier-Lees, F. Marzano, D. Fernandez, J. M. You, K. N. Qureshi, A. Gurtu, Nicanor Colino, J. A. Rubio, P. Arce, R. C. Ball, S. N. Ganguli, C. Timmermans, G. G.G. Massaro, E. Fiandrini, P. Berges, P. G. Seiler, Alexei Klimentov, P. Lebrun, G. Sartorelli, Peter Denes, D. Ren, J. B. Ye, Harvey B Newman, D. Goujon, Y. Y. Xie, K. L. Tung, M. Dhina, G. Mirabelli, H. Schopper, Y. J. Pei, Y. Liu, Y. Zeng, K.D. Shmakov, P Le Coultre, I. C. Brock, Alexander Malinin, W. Kittel, K. Hangarter, C. T. He, E. Brambilla, M. Napolitano, H. Fesefeldt, S. Beingessner, R. Schulte, A. Engler, Z. Ren, G. Coignet, K. Strauch, T. Spickermann, R. Sehgal, G. Sultanov, G. Sauvage, M. Guanziroli, R. Fabbretti, G. Finocchiaro, Guo-Ming Chen, J. Salicio, X. D. Cai, J. D. Burger, K. Lübelsmeyer, G. Fernandez, J. Lettry, G. Q. Hu, I. Scott, Q. Fan, L. Luminari, Mingshui Chen, Q. An, V. Schegelsky, K. Freudenreich, M. Pohl, S. Jezequel, Marta Felcini, A. Kasser, S. X. Wu, Andrea Contin, Z. Wang, O. Kornadt, G. Ambrosi, A. Santocchia, S. Banerjee, Y. S. Lu, X. L. Wang, J. F. Li, A. Bay, E. Gallo, R. L. Summer, U. Herten, V. Shoutko, G. Gratta, F. C. Erné, J. Shukla, J. Krizmanic, A. Tsaregorodtsev, J. Mnich, W. Krenz, L. J. Gutay, Y. D. Xu, U. Becker, D. J. Schotanus, K. Schmiemann, M. Chemarin, P. Zemp, E. Tarkovsky, U. Vikas, Hans J. Vogel, Bernardo Adeva, C. Scicca, A. C. König, K. Schultze, L. Martinez-Laso, C. G. Yang, A. Atamanchuk, F. J. Eppling, L. W. Jones, L. Antonov, S. M. Ting, Robert Clare, Ph. Rosselet, Paul Lecoq, R. W. Kraemer, S. Kirsch, P. K. Malhorta, J. H. Wang, B. Borgia, E. Soderstrom, X. Leytens, G. Viertel, M. L. Brooks, E. Gonzalez, M. S. Sarakinos, M.L. Chen, R. Morand, H. Nowak, K. Read, J. K. Guo, I. Vorobiev, Zp Zhang, P. Marchesini, H. Akbari, G. Von Dardel, K. Mazumdar, J. M. Salicio, L. Urbán, M. Tonutti, L. Servoli, P. Schmitz, F. Behner, R. Mount, P. Lecomte, E. Valente, Th. Meinholz, J. Berdugo, P. Duinker, Y. Mi, J. Perrier, I. Sheer, P. Extermann, D. M. Lee, F. Carminati, P. A. Piroué, F. Becattini, F. DeNotaristefani, M. Pauluzzi, J. Alcaraz, Marco Pieri, A. Ricker, I. Duran, R.B. Sutton, D. DiBitonto, K. Deiters, M. Steuer, B. P. Roe, A. Degré, F. Cesaroni, Samuel C.C. Ting, Steven Goldfarb, A. Bujak, L. Merola, D. Schmitz, A. Koulbardis, W. Y. Chen, E. Dénes, S. Patricelli, B. Lindemann, A. Arefiev, V. Koutsenko, P. J. Li, W. J. Metzger, L. Barone, W. G. Ma, M. Aguilar-Benitez, T. E. Coan, J. G. Branson, S. Morganti, H. Rykaczewski, S. S. Gau, F. Wittgenstein, M. Chmeissani, Z. Z. Xu, Q. Ye, O. Rind, A. Weber, E. Leonardi, J. Field, J. Y. Liao, C. Dionisi, C. Maña, Alain Hervé, E. Drago, X. Y. Cui, M. Bourquin, G. Raven, O. Adriani, M. White, M. T. Dova, Christine Buisson, Z. M. Wang, and J. J. Blaising

Subjects
Physics, Nuclear and High Energy Physics, Particle physics, Annihilation, Photon, Luminosity (scattering theory), 010308 nuclear & particles physics, Scattering, Physics::Instrumentation and Detectors, neutrino families, Electron–positron annihilation, Astrophysics::Cosmology and Extragalactic Astrophysics, LEP, 01 natural sciences, Resonance (particle physics), Nuclear physics, Cross section (physics), L3 detector, 0103 physical sciences, High Energy Physics::Experiment, Neutrino, 010306 general physics, Ciencias Exactas
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 Z° 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 Nv = 3.24 ± 0.46 (statistical) _+ 0.22 (systematic)., Facultad de Ciencias Exactas

Published
1992

21. Inclusive J production in Z$^0$ decays

Author

D. Antreasyan, Yu. Galaktionov, M. Bocciolini, H. Janssen, J. Alcaraz, M. Brooks, J. G. Branson, P. Duinker, M. Vivargent, M. N. Kienzle-Focacci, A. Klimentov, U. Herten, R. Mount, W. J. Burger, Kenneth Francis Read, A. Tsaregorodtsev, Roberto Battiston, D. Hauschildt, M. Fabre, Gerjan Bobbink, B. Borgia, Lamberto Luminari, Xin-Qiang Li, H. J. Schreiber, J. Ulbricht, R. C. Ball, Raffaello D'Alessandro, Pierre Lecomte, G. Sartorelli, O. An, C. Grinnell, C. G. Yang, Dimitri Bourilkov, E. Nagy, Leonardo Merola, W. Y. Chen, K. N. Qureshi, P.V.K.S. Baba, S. C. Yeh, A. Nippe, D. Duchesneau, H. Anderhub, I. Clare, J. Busenitz, R. Y. Zhu, B. Zhou, N. E. Moulai, X. L. Wang, T. Azemoon, A. Gougas, Pablo Garcia-Abia, Alain Hervé, M. Schneegans, Z. M. Wang, Y. J. Pei, E. Fiandrini, C. Neyer, V. Plyaskin, S. Shevchenko, L. Romero, Luca Lista, S. Beingessner, K. S. Yang, M. Möller, P. Göttlicher, B. C. Stringfellow, D. Fernandez, Z. F. Gong, T. Paul, Yanwen Liu, H. S. Chen, Y. H. Chang, P. Kapinos, G. Sauvage, K. L. Tung, Z. Y. Lin, J. Mnich, Marcos Cerrada, M. Caria, George Alverson, A. Bay, L. Vuilleumier, G. S. Sanders, R. T. Van de Walle, T. J. Wenaus, M. T. Dova, X. R. Shi, K. Strauch, H. Nowak, T. Kramer, A. Rubbia, T. Foreman, J. M. Salicio, W. Lohmann, R. W. Kraemer, R. Fabbretti, A. Bujak, T. E. Coan, J. Behrens, Y. D. Xu, B. Monteleoni, F. Sticozzi, A. Koulbardis, T. Angelov, Wt Lin, J. Bao, K. Hilgers, V. K. Gupta, J. P. Burq, C. Spartiotis, B. Wysouch, D.N. Mao, X. T. Cui, N. Yunus, J. S. Kapustinsky, W. W. Kinnison, M. Bourquin, R. B. Sutton, A. Chen, R. Barillère, P. Zemp, Z. P. Zhang, R. Bizzarri, C. F. He, Carlo Civinini, M. Maolinbay, G. Raven, M. Aguilar-Benitez, F. DeNotaristefani, R. Morand, Pierluigi Paolucci, Steven Ahlen, M. Merk, R. de Asmundis, Jianming Qian, G. Hu, W. Wallraff, J. Shukla, C. Zaccardelli, Howard A. Stone, C. Timmermans, J. H. Wang, P. Vikas, G. Schwering, J. J. Blaising, H. L. Zhuang, G. Herten, G. Chiefari, G. Q. Hu, S. Banerjee, P. Berges, M. Sachwitz, I. Vetlitsky, M. White, V. Koutsenko, G. Gratta, W. G. Ma, F. Behner, S. Röhner, B. L. Betev, Maurizio Biasini, F. Wittgenstein, Marta Felcini, Adrian Biland, A. A. Syed, Carlos Willmott, Speranza Falciano, Y. F. Wang, J. A. Bakken, J. D. Burger, U. Becker, Z. Q. Yang, L. Ludovici, Francesco Becattini, M. Rescigno, R. Rosmalen, G. Rahal-Callot, M. Sassowsky, Alberto Aloisio, A. Ricker, M. Chmeissani, Giovanni Ambrosi, M. Fukushima, B. Ille, E. Drago, G. B. Mills, E. Gonzalez, A. Marin, Th. Meinholz, A. M. Cartacci, R. Raghavan, M. Yzerman, K. Schultze, H. Suter, L. J. Gutay, D. S. Yan, Atul Gurtu, K. Deiters, P. A. Piroué, B. C.C. van der Zwaan, D. Lanske, L. Z. Sun, H. Schopper, H. R. Dimitrov, Chenjie Gu, D. Kirkby, W. Kittel, F. J. Eppling, L. W. Jones, S. M. Ting, Z. L. Xue, B. Lindemann, Tariq Aziz, A. Kunin, P. Arce, D. Goujon, L. Urbán, K. Sudhakar, Q. Y. Yang, Vincenzo Innocente, G. Finocchiaro, M. W. Gruenewald, R. L. Sumner, M. Capell, J. C. Sens, M. Lenti, S. Schulte, K. Schmiemann, H. S. Fesefeldt, J. Wenninger, A. Pevsner, J. Perrier, E. Dénes, R. Sehgal, D. Linnhofer, Jiunn-Wei Chen, B. P. Roe, V. Pojidaev, H. O. Cohn, S. S. Gau, R. Leiste, A. Nadtochy, Federico Carminati, D. P. Stickland, R. Malik, P. Lebrun, Barry Blumenfeld, Y. Mir, C. H. Ye, G. M. Bilei, Valery Schegelsky, Antonino Zichichi, Crisostomo Sciacca, Marco Pieri, J. M. Lubbers, Ph Fisher, Andrea Contin, H. Rykaczewski, Y. Karyotakis, S. J. Fan, A. Krivschich, Igor Vorobiev, S. Patricelli, Gerard Fernandez, Oliver Kornadt, M. Pohl, S. Chung, I. Scott, H. T. Li, M. Wadhwa, Q. Ye, Attilio Santocchia, J. B. Ye, J. M. You, M. Dhina, J. M. Le Goff, D. H. Wright, N. Produit, V. R. Krastev, Jozsef Toth, Stéphane Jézéquel, D. Boutigny, J. Lettry, G. A. Yang, Simonetta Gentile, F. Crijns, Y. G. Wu, Georgi Sultanov, J. Berdugo, T. S. Dai, Davide Piccolo, P. G. Seiler, P. McBride, R. A. Khan, L. Antonov, Elisabetta Gallo, S. N. Ganguli, A. Degré, A. Sopczak, A. Kasser, H. Newman, P. K. Malhotra, H. A. Rizvi, T. Driever, A. C. Weber, C. Li, J. A. Rubio, G. Mirabelli, V. P. Andreev, M. Guanziroli, K. Lübelsmeyer, Piero Spillantini, A. Engler, D. Pandoulas, G. M. Chen, T. Spickermann, Y. S. Lu, A. C. König, E. Valente, D. McNally, Hafeez R Hoorani, S. Reucroft, Peter Denes, S. Shotkin, J. D. Swain, H. Kuitjen, Y. F. Mao, Paolo Bagnaia, A. Böhm, C. Chen, E. Shumilov, R. Weill, T. McMahon, E. Sajan, T. Ferguson, O. Fackler, X. Leytens, Helmut Vogel, G. Viertel, Felicitas Pauss, V. Shoutko, Y. Mi, S. Rosier-Lees, F. L. Linde, S. Morganti, Y. Y. Xie, Z. Ren, P. Le Coultre, P. Schmitz, Kajari Mazumdar, M. Tonutti, J. Schwenke, K. Freudenreich, K. Hangarter, S. Khokhar, X. J. Yan, S. Müller, X. Y. Cui, X. W. Tang, M. MacDermott, S. C. Tonwar, Z. W. Yin, I. C. Brock, C. R. Wang, Frank Filthaut, R. Starosta, S. X. Wu, M. A. Niaz, P. Razis, W. J. Metzger, M. Chemarin, Xd Cai, D. Luckey, Gy L. Bencze, C. Maña, L. Martinez-Laso, D.W. Schmitz, K. S. Kumar, Reinhard W. Schulte, M. Pauluzzi, F. Cesaroni, G.G.G. Massaro, D. DiBitonto, F. C. Erné, Claudio Luci, G. H. Wang, P. Extermann, F. Ferroni, Robert Clare, A. Atamanchuk, J. P. Martin, D. Ren, Emilio Leonardi, Y. Zeng, I. Leedom, S. Riemann, Ph. Rosselet, M. Steuer, G. Forconi, J. Weber, Thomas Hebbeker, Paul Lecoq, H. Hofer, R. Bock, C. Buisson, D.J. Schotanus, M. Napolitano, M. Gailloud, U. Vikas, M. S. Sarakinos, F. Plasil, L. Baksay, E. Soderstrom, L. Servoli, Marco Meschini, J. K. Guo, D. Perret-Gallix, M.L. Chen, S. Lanzano, D. Gele, Samuel C.C. Ting, O. Rind, Christopher George Tully, D. Z. Shen, A. L. Anderson, Steven Goldfarb, P. J. Li, D. M. Lee, F. Marion, Marcella Diemoz, B. Bertucci, R. J. Wu, G. Passaleva, J. F. Zhou, J. Fay, Nicanor Colino, BT Bouwens, G. Landi, J. Schütte, M. Hebert, Egidio Longo, Simone Paoletti, B. N. Jin, G. Tsipolitis, P. Marchesini, U. Uwer, H. Vogt, Manjit Kaur, C. Dionisi, H. El Mamouni, Ming Zeng, M. M. Ilyas, H. Akbari, J. Salicio, M. Röhner, Daqiang Zhang, F. J. Rodriguez, A. Arefiev, H. R. Gustafson, Luciano Barone, I. Sheer, G. Carlino, An.A. Vorobyov, T. Matsuda, J. Y. Liao, O. Adriani, Z. Z. Xu, Lucas Taylor, M. G. Alviggi, Els Koffeman, F. Marzano, S. Kirsch, G. Coignet, Q. F. Wang, W. Krenz, E. Brambilla, Yu. Kamyshkov, G. Orgatini, A. Hasan, B. Z. Yang, U. K. Chaturvedi, W. Friebel, A. Malinin, Jérôme Rose, J. H. Field, C. Y. Chien, 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), Adriani, O., Aguilarbenitez, M., Ahlen, S., Akbari, H., Alcaraz, J., Aloisio, Alberto, Alverson, G., Alviggi, Mariagrazia, Ambrosi, G., An, Q., Anderhub, H., Anderson, A. L., Andreev, V. P., Angelov, T., Antonov, L., Antreasyan, D., Arce, P., Arefiev, A., Atamanchuk, A., Azemoon, T., Aziz, T., P. V. K., Bagnaia, P., Bakken, J. A., Baksay, L., Ball, R. C., Banerjee, S., Bao, J., Barillere, R., Barone, L., Battiston, R., Bay, A., Becattini, F., Becker, U., Behner, F., Behrens, J., Beingessner, S., Bencze, G. L., Berdugo, J., Berges, P., Bertucci, B., Betev, B. L., Biasini, M., Biland, A., Bilei, G. M., Bizzarri, R., Blaising, J. J., Blumenfeld, B., Bobbink, G. J., Bocciolini, M., Bock, R., Bohm, A., Borgia, B., Bourilkov, D., Bourquin, M., Boutigny, D., Bouwens, B., Brambilla, E., Branson, J. G., Brock, I. C., Brooks, M., Buisson, C., Bujak, A., Burger, J. D., Burger, W. J., Burq, J. P., Busenitz, J., Cai, X. D., Capell, M., Caria, M., Carlino, G., 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, J., Chen, M., Chen, M. L., Chen, W. Y., Chiefari, Giovanni, Chien, C. Y., Chmeissani, M., Chung, S., Civinini, C., Clare, I., Clare, R., Coan, T. E., Cohn, H. O., Coignet, G., Colino, N., Contin, A., Crijns, 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., Dova, M. T., Drago, E., Driever, T., Duchesneau, D., Duinker, P., 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., Filthaut, F., Finocchiaro, G., Fisher, P. H., Forconi, G., Foreman, T., Freudenreich, K., Friebel, W., Fukushima, M., Gailloud, M., Galaktionov, Y., Gallo, E., Ganguli, S. N., Garciaabia, P., Gau, S. S., Gele, D., Gentile, S., Goldfarb, S., Gong, Z. F., Gonzalez, E., Gottlicher, P., Gougas, A., Goujon, D., Gratta, G., Grinnell, C., 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, Hebbeker, T., Hebert, M., Herten, G., Herten, U., 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., Kasser, A., Khan, R. A., Kamyshkov, Y., Kapinos, P., Kapustinsky, J. S., Karyotakis, Y., Kaur, M., Khokhar, S., Kienzlefocacci, M. N., Kinnison, W. W., 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., Krivshich, A., Kuitjen, H., Kumar, K. S., Kunin, A., Landi, G., Lanske, D., Lanzano, S., Lebrun, P., Lecomte, P., Lecoq, P., Lecoultre, P., Lee, D. M., Leedom, I., Legoff, J. M., Leiste, R., Lenti, M., Leonardi, E., Lettry, J., Leytens, X., Li, C., H. T., Li, P. J., Li, X. G., Li, Liao, J. Y., Lin, W. T., Lin, Z. Y., Linde, F. L., Lindemann, B., Linnhofer, D., Lista, L., Liu, Y., Lohmann, W., Longo, E., Y. S., Lu, Lubbers, J. M., Lubelsmeyer, K., Luci, C., Luckey, D., Ludovici, L., Luminari, L., W. G., Ma, Macdermott, M., Malhotra, P. K., Malik, R., Malinin, A., Mana, C., Mao, D. N., Mao, Y. F., Maolinbay, M., Marchesini, P., Marion, F., Marin, A., Martin, J. P., Martinezlaso, L., Marzano, F., G. G. G., Matsuda, T., Mazumdar, K., Mcbride, P., Mcmahon, T., Mcnally, D., Meinholz, T., Merk, M., Merola, Leonardo, Meschini, M., Metzger, W. J., Mi, Y., 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, Newman, H., Neyer, C., Niaz, M. A., Nippe, A., Nowak, H., Organtini, G., Pandoulas, D., Paoletti, S., Paolucci, P., Passaleva, G., Patricelli, Sergio, Paul, T., Pauluzzi, M., Pauss, F., Pei, Y. J., Perretgallix, D., Perrier, J., Pevsner, A., Piccolo, D., Pieri, M., Piroue, P. A., Plasil, F., Plyaskin, V., Pohl, M., Pojidaev, V., Produit, N., Qian, J. M., Qureshi, K. N., 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, H. A., Rodriguez, F. J., Roe, B. P., Rohner, M., Rohner, S., Romero, L., Rose, J., Rosierlees, S., Rosmalen, R., Rosselet, P., Rubbia, A., Rubio, J. A., Rykaczewski, H., Sachwitz, M., Sajan, E., Salicio, J., Salicio, J. M., Sanders, G. S., Santocchia, A., Sarakinos, M. S., Sartorelli, G., Sassowsky, M., Sauvage, G., Schegelsky, V., Schmiemann, K., Schmitz, D., Schmitz, P., Schneegans, M., Schopper, H., Schotanus, D. J., Shotkin, S., Schreiber, H. J., Shukla, J., Schulte, R., Schulte, S., Schultze, K., Schutte, J., 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., Soderstrom, E., Sopczak, A., 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., Sumner, R. L., Sun, L. Z., Suter, H., Sutton, R. B., Swain, J. D., Syed, A. A., Tang, X. W., Taylor, L., Timmermans, C., 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. R., Wang, G. H., Wang, J. H., Wang, Q. F., Wang, X. L., Wang, Y. F., Wang, Z. M., Weber, A., Weber, J., Weill, R., Wenaus, T. J., Wenninger, J., White, M., Willmott, C., Wittgenstein, F., Wright, D., R. J., Wu, S. X., Wu, Y. G., Wu, Wyslouch, B., Xie, Y. Y., Y. D., Xu, Z. Z., Xu, Xue, Z. L., Yan, D. S., Yan, X. J., Yang, B. Z., Yang, C. G., Yang, G., Yang, K. S., Yang, Q. Y., Yang, Z. Q., 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, J. F., Zhu, R. Y., Zhuang, H. L., Zichichi, A., and B. C. C.

Subjects
Physics, Nuclear and High Energy Physics, E+E ANNIHILATION, Meson, 010308 nuclear & particles physics, Branching fraction, Electron–positron annihilation, Hadron, 01 natural sciences, 7. Clean energy, lcsh:QC1-999, Nuclear physics, Momentum, PSI-X%22">B->PSI-X, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], Z0, FRAGMENTATION, 010306 general physics, GeneralLiterature_REFERENCE(e.g.,dictionaries,encyclopedias,glossaries), Particle Physics - Experiment, lcsh:Physics
Abstract

Inclusive J production in Z0 decays is observed via the leptonic decay mode J → l+l− (l = e,μ). We measure the branching ratio Br(Z0 → J + X) = (4.1 ± 0.7 (stat.) ± 0.3 (sys.)) × 10−3. We have calculated the fraction of the J mesons from b-hadron decay and find a branching ratio of Br(b → J + X)= (1.3±0.2(stat.)±0.2(sys.)) × 10−2. We determine the average fractional energy of bottom hadrons 〈XE > = 0.70±0.03 (stat.)+0.02−0.01 (sys.) using the momentum spectrum of the J mesons. From a study of the angle between the J and the most energetic jet, we set an upper limit on the branching ratio Br ( Z 0 → q q g ∗ ; g ∗ → J + X ) −4 at 90% confidence level.

Published
1992
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22. 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
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23. 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

24. 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. A., Syed, X. W., Tang, E., Tarkovsky, L., Taylor, C., Timmerman, S. C., C., S. M., Ting, Y. P., Tong, F., Tonisch, M., Tonutti, S. C., Tonwar, J., Toth, G., Trowitzsch, 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, 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

25. 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. Kunin, Lamberto Luminari, A. Böhm, C. Zaccardelli, W. W. Kinnison, L. J. Gutay, U. Becker, W. J. Metzger, D. Kirby, M. Guanziroli, R. C. Ball, Pierre Lecomte, I. Duran, F. L. Linde, G. Sartorelli, J. P. Martin, E. Shumilov, Charles Timmermans, F. J. Eppling, L. W. Jones, D. S. Yan, S. M. Ting, V. Shoutko, W. Y. Chen, M. Tonutti, F. Plasil, Mingshui Chen, Adrian Biland, G. Gratta, K.D. Shmakov, S. J. Fan, D. Ren, U. Vikas, A. Contin, A. Engler, H. S. Fesefeldt, R. Weill, M. Lenti, A. L. Anderson, Ying Wu, J. F. Zhou, M. MacDermott, T. Kramer, M. A. Niaz, J. J. Blaising, P. Extermann, H. Haan, I. Leedom, B. Z. Yang, Mariagrazia Alviggi, H. Hofer, K. L. Tung, I. Vetlitsky, Egidio Longo, J.C. Sens, M. M. Ilyas, G. Landi, Simone Paoletti, Manjit Kaur, H. Akbari, Daqiang Zhang, Y. J. Pei, D.W. Schmitz, G.G.G. Massaro, D.N. Mao, Robert Clare, Thomas Hebbeker, Paul Lecoq, R. W. Kraemer, M. Gailloud, M. Napolitano, S. Kirsch, E. Soderstrom, H. S. Chen, L. Servoli, D. Wright, R. Fabbretti, S. 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. 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, F., Becattini, 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, W., 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, H. O., Cohn, G., Coignet, N., Colino, V., Commichau, 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, 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, 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. 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, 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, S., Paoletti, 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, 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, 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. A., Syed, X. W., Tang, E., Tarkovsky, L., Taylor, C., Timmerman, S. C., C., S. M., Ting, Y. P., Tong, M., Tonutti, S. C., Tonwar, J., Toth, 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, A., Zichichi, and IHEF (IoP, FNWI)

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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26. 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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