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1. Multiferroic properties of Bi0.95H0.05FeO3 polycrystalline films (H = Gd, Tb, Dy, Ho, Er)

Author

T. K. Lin, H. W. Chang, C. Y. Hung, C. R. Wang, D. H. Wei, C. S. Tu, and P. Y. Chen

Subjects
Physics, QC1-999
Abstract

We investigated the structure, ferroelectric, magnetic, and leakage characteristics of Bi0.95H0.05FeO3 (BHFO) polycrystalline films with H = Gd, Tb, Dy, Ho, and Er. Bi0.95H0.05FeO3 films were confirmed to mainly consist of the perovskite phase, and the phase structure belongs to the pseudo-cubic phase. The desired ferroelectric and ferromagnetic properties at the same time, the remanent polarization (2Pr) of 57–81 μC/cm2 and the saturation magnetization (Ms) of 11.6–21.3 emu/cm3, are obtained for Bi0.95H0.05FeO3 films. Lower 2Pr with smaller ionic radius of H is possibly related to limited ion movement because of the reduced volume of the unit cell in BHFO films. Low leakage current characteristics and leakage mechanisms in Bi0.95H0.05FeO3 films are also discussed. In aspect of the magnetic properties, H can significantly improve the magnetic properties of BFO by A-site substitutions due to the suppressed spiral structure and importantly the contribution of high magnetic moment of H ion. The results of this work suggests BHFO films is a good multiferroic material, especially the samples with H = Tb and Dy.

Published
2023
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2. Correlation between phase composition and exchange bias in CoFe/MnN and MnN/CoFe polycrystalline films

Author

H. W. Chang, Y. H. Chien, F. T. Yuan, Y. R. Lai, C. R. Wang, Lance Horng, and W. C. Chang

Subjects
Physics, QC1-999
Abstract

Magnetic properties and phase composition of both MnN/CoFe (MnN at top of bilayer) and CoFe/MnN films (MnN at bottom of bilayer) bilayers through annealing at various temperatures (Ta = 300-450 °C) and then cooling to room temperature under the application of an external magnetic field of 1.5 kOe are compared. The exchange bias field (HE), the magnitude of magnetic hysteresis loop shift, of the studied films is highly related to phase composition of antiferromagnetic (AF) layer. The increase of HE with increasing Ta in the range of 300-375 °C possibly results from the improvement of magnetocrystalline anisotropy of AF related to the promoted crystallinity and stress relaxation of tetragonal face-centered θ-MnN phase. The reduction of HE at higher Ta is due to the decreased volume fraction or disappearance of θ-MnN phase and the formation of impurity phases, such as Mn4N and Mn. The induction of impurity phases is possibly related to the diffusion of part of N out of MnN phase at higher Ta. Higher HE for CoFe/MnN than MnN/CoFe at Ta = 300-375 °C might be attributed to larger amount and higher degree of stress relaxation for θ-MnN phase. For CoFe/MnN film annealed at 375 °C, the highest HE = 562 Oe is attained, and the corresponding interfacial exchange energy of 0.47 mJ/m2 in this study is comparable to that reported by Meinert et al. [Phys. Rev. B 92, 144408 (2015)].

Published
2020
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3. Comparison on the structure and exchange bias in Co/MnPt and MnPt/Co polycrystalline films on glass substrates

Author

H. W. Chang, F. T. Yuan, P. Y. Yeh, Y. C. Chen, Y. L. Lai, P. H. Pan, C. R. Wang, Lance Horng, and W. C. Chang

Subjects
Physics, QC1-999
Abstract

Structure and magnetic properties of sputter-prepared Co(5 nm)/MnPt(20 nm) and MnPt/Co polycrystalline films with various annealing temperatures (T) have been compared. XRD and TEM analysis show that MnPt is more compressive in film plane for Co/MnPt than MnPt/Co at as-deposited state. Large HE of 464-560 Oe are attained in two series films through proper thermal process of post annealing and cooling in external magnetic field. The increase of HE with T is mainly dominated by the ordering degree of MnPt layer and the roughness of the interface. As compared to MnPt/Co film (T = 250 °C), Co/MnPt film with more compressive in film plane exhibits L10-ordering, the onset of stress release, and the optimized HE at lower T = 200 °C. Higher HE for MnPt/Co film at T = 250 °C (560 Oe) than Co/MnPt film T = 200 °C (464 Oe) might be related to grain growth for L10 phase. Nevertheless, higher annealing temperature leads to the interdiffusion, the roughened surface and therefore the decrease of HE and Hc. This study provides useful information to fabricate exchange-bias system with L10-MnPt as an antiferromagnetic layer.

Published
2019
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4. Mineralization of Quinoline by BDD Anodes: Variable Effects and Its Effluent Characteristics

Author

C. R. Wang, J. Wang, X. G. Ma, H. Li, and S. Z. Zhang

Subjects
Chemistry, QD1-999
Abstract

BDD anodes were selected for quinoline mineralization and influence of operating parameters, such as current density, initial quinoline concentration, supporting electrolyte, and initial pH was investigated. Based on the consideration of quinoline removal efficiency and average current efficiency, at initial quinoline concentration of 50 mg L−1 and pH of 7, the optimal condition was confirmed as current density of 75 mA cm−2, electrolysis time of 1.5 h, and Na2SO4 concentration of 0.05 mol L−1 by orthogonal test. At different electrolysis time, its effluent characteristics were focused on. The biodegradability (the ratio between BOD5 and COD) was enhanced from initial 0.02 to 0.57 at 90 min. The specific oxygen uptake rate was used to assess effluent toxicity, and the value gradually reduced with decreasing effluent organic concentration with mean value of 5.51, 4.19, and 2.20 mgO2 g−1MLSS at electrolysis time of 15, 30, and 45 min, respectively. Compared with control sample (prepared with glucose), the effluent of quinoline mineralization showed obvious inhibition effect on microorganisms at electrolysis time of 15 min, and then it was significantly faded at 30 min and 45 min.

Published
2015
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5. Electrochemical Oxidation Using BDD Anodes Combined with Biological Aerated Filter for Biotreated Coking Wastewater Treatment

Author

C. R. Wang, Z. F. Hou, M. R. Zhang, J. Qi, and J. Wang

Subjects
Chemistry, QD1-999
Abstract

Coking wastewater is characterized by poor biodegradability and high microorganism toxicity. Thus, it is difficult to meet Grade I of Integrated Wastewater Discharge Standard of China by biological treatment technology; specifically, COD cannot meet above standard due to containing refractory organics. A novel coupling reactor, electrochemical oxidation using BDD anodes and biological aerated filter (BAF), has been developed for carbon and nitrogen removal from biotreated coking wastewater, focusing on COD, BOD5, NH4+-N, and NO3--N removal on operation over 90 days with average effluent value of 91.3, 9.73, 0.62, and 13.34 mgL−1, respectively. Average value of BOD5/COD and BOD5/NO3--N was enhanced from 0.05 to 0.27 and from 0.45 to 1.21 by electrochemical oxidation, respectively, with average energy consumption of 67.9 kWh kg−1 COD. In addition, the refractory organics also were evidently mineralized in the unit based on the data of the three-dimensional fluorescence spectra. Meanwhile, its effluent provided excellent substrate for biological denitrification in BAF. At hydraulic retention time (HRT) of 13.08 h, about 12 mgL−1 NO3--N was depleted through denitrification, and it mainly occurred at top of 0.25 m height of BAF. Therefore, it is feasible to apply the coupling reactor for biotreated coking wastewater treatment and achieve desirable effluent quality.

Published
2015
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6. Photovoltaic Energy Conversion System Constructed by High Step-Up Converter with Hybrid Maximum Power Point Tracking

Author

K. I. Hwu, W. C. Tu, and C. R. Wang

Subjects
Renewable energy sources, TJ807-830
Abstract

A photovoltaic energy conversion system, constructed by high step-up converter with hybrid maximum power point tracking (HMPPT), is presented. A voltage converter with a high voltage conversion ratio is proposed, which is simple in circuit and easy in control. After this, such a converter operating with a suitable initial duty cycle of the pulsewidth-modulated (PWM) control signal, together with the proposed HMPPT algorithm combining the fractional open-circuit voltage method and the incremental conductance method, is applied to the photovoltaic energy conversion system. By doing so, not only the maximum power point tracking speed can be increased, but also the oscillation around the maximum power point can be reduced. Aside from these, the field programmable gate array (FPGA) is used as a control kernal of the overall system, so as to realize the HMPPT and fully digitalized control. Finally, via a PV simulator, some experimental results are provided to verify the effectiveness of the proposed photovoltaic energy conversion system.

Published
2013
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8. Antioxidant, Anti-Inflammatory Activities, and Neuroprotective Behaviors of Phyllanthus emblica L. Fruit Extracts

Author

Po-Hsien Li, Chien-Wen Wang, Wen-Chien Lu, Tuzz-Ying Song, and Chiun-C. R. Wang

Subjects
Phyllanthus emblica, antioxidant, anti-inflammatory, neuroprotection, cyclooxygenase-2 (COX-2), Agriculture (General), S1-972
Abstract

Phyllanthus emblica L. is traditionally used as both medicine and food in Taiwan. In this study, we evaluated the antioxidant, anti-inflammatory, and neuroprotection bioactivities of P. emblica fruit. P. emblica fruit extracts had a high content of total phenol and flavonoids, and chlorogenic acids. For antioxidant capacity, 95% ethanol-extracted P. emblica had the best DPPH radical scavenging activity, ferrous ion chelating ability, and reducing power as compared with hot water, 50% ethanol, and commercial extracts, and showed the highest reducing power and lipid peroxidation inhibition. The present results have demonstrated that the P. emblica extracts can protect the oxidative degradation of lipids by inhibiting FeCl3-ascorbate-mediated lipid peroxidation. For anti-inflammatory activity, P. emblica fruit extracts showed dose-dependent inhibition of nitric oxide in lipopolysaccharide-stimulated RAW264.7 cells and significantly high COX-2 inhibition. For neuroprotection bioactivity, P. emblica extracts had higher percentages of pheochromocytoma cell protection than commercial extracts. Hot water and ethanol extracts showed higher percentages of PC12 cell protection than commercial extracts. P. emblica hydroalcoholic extracts had a neuroprotective effect against oxidative damage, which could be due to their antioxidant and anti-inflammatory activity. P. emblica extracts could be used in daily health beverages, foods, and cosmetic products.

Published
2022
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9. Comparison on the structure and exchange bias in Co/MnPt and MnPt/Co polycrystalline films on glass substrates

Author

Lance Horng, H. W. Chang, Y. C. Chen, P.H. Pan, Y. L. Lai, P. Y. Yeh, F.T. Yuan, W.C. Chang, and C. R. Wang

Subjects
010302 applied physics, Materials science, Annealing (metallurgy), Analytical chemistry, General Physics and Astronomy, 02 engineering and technology, 021001 nanoscience & nanotechnology, 01 natural sciences, lcsh:QC1-999, Exchange bias, 0103 physical sciences, Crystallite, 0210 nano-technology, Tem analysis, lcsh:Physics
Abstract

Structure and magnetic properties of sputter-prepared Co(5 nm)/MnPt(20 nm) and MnPt/Co polycrystalline films with various annealing temperatures (T) have been compared. XRD and TEM analysis show that MnPt is more compressive in film plane for Co/MnPt than MnPt/Co at as-deposited state. Large HE of 464-560 Oe are attained in two series films through proper thermal process of post annealing and cooling in external magnetic field. The increase of HE with T is mainly dominated by the ordering degree of MnPt layer and the roughness of the interface. As compared to MnPt/Co film (T = 250 °C), Co/MnPt film with more compressive in film plane exhibits L10-ordering, the onset of stress release, and the optimized HE at lower T = 200 °C. Higher HE for MnPt/Co film at T = 250 °C (560 Oe) than Co/MnPt film T = 200 °C (464 Oe) might be related to grain growth for L10 phase. Nevertheless, higher annealing temperature leads to the interdiffusion, the roughened surface and therefore the decrease of HE and Hc. This study provides useful information to fabricate exchange-bias system with L10-MnPt as an antiferromagnetic layer.

Published
2019

10. Multivalent structure of galectin-1-nanogold complex serves as potential therapeutics for rheumatoid arthritis by enhancing receptor clustering

Author

Y-J Huang, A-L Shiau, S-Y Chen, Y-L Chen, C-R Wang, C-Y Tsai, M-Y Chang, Y-T Li, C-H Leu, and C-L Wu

Subjects
cell-surface receptors, lcsh:Diseases of the musculoskeletal system, inflammation, apoptosis, lcsh:Surgery, ankle joint, galectin-1, nanoparticles, lcsh:RD1-811, Rheumatoid arthritis, gold, lcsh:RC925-935
Abstract

Cellular behaviour is controlled by numerous processes, including intracellular signalling pathways that are triggered by the binding of ligands with cell surface receptors. Multivalent ligands have multiple copies of a recognition element that binds to receptors and influences downstream signals. Nanoparticle-ligand complexes may form multivalent structures to crosslink receptors with high avidity and specificity. After conjugation onto gold nanoparticles, galectin-1 (Au-Gal1) bound with higher affinity to Jurkat cells to promote CD45 clustering and inhibition of its phosphatase activity, resulting in enhancement of apoptosis via caspase-dependent pathways. Au-Gal1 injected intra-articularly into rats with collagen-induced arthritis (CIA) promoted apoptosis of CD4+ T cells and reduced pro-inflammatory cytokine levels in the ankle joints as well as ameliorated clinical symptoms of arthritis. These observed therapeutic effects indicate that the multivalent structure of nanoparticle-ligands can regulate the distribution of cell surface receptors and subsequent intracellular signalling, and this may provide new insights into nanoparticle applications.

Published
2012

11. Sensitivity of ARGO-YBJ to different composition models in the energy range 10 ÷ 500 TeV

Author

C. BACCI, K. Z. BAO, F. BARONE, B. BARTOLI, S. BUSSINO, E. CALLONI, B. Y. CAO, R. CARDARELLI, S. CATALANOTTI, S. CAVALIERE, F. CESARONI, P. CRETI, DANZENGLUOBU, B. D'ETTORRE PIAZZOLI, M. DE VINCENZI, T. DI GIROLAMO, G. DI SCIASCIO, Z. Y. FENG, Y. FU, X. Y. GAO, Q. X. GENG, H. W. GUO, H. H. HE, M. HE, Q. HUANG, M. IACOVACCI, N. IUCCI, H. Y. JAI, C. L. JING, F. M. KONG, H. H. KUANG, LABACIREN, B. LI, J. Y. LI, Z. Q. LIU, H. LU, X. H. MA, S. M. MARI, X. R. MENG, L. MILANO, J. MU, Z. R. PENG, P. PISTILLI, L. SAGGESE, R. SANTONICO, P. R. SHEN, C. STANESCU, L. R. SUN, S. C. SUN, A. SURDO, Y. H. TAN, S. VERNETTO, C. R. WANG, H. WANG, H. Y. WANG, Y. N. WEI, H. T. YANG, Q. K. YAO, G. C. YU, X. D. YUE, A. F. YUAN, M. ZHA, H. M. ZHANG, J. L. ZHANG, N. J. ZHANG, X. Y. ZHANG, ZHAXISANGZHU, ZHAXICIREN, Q. Q. ZHU, BERNARDINI, Paolo, DE MITRI, Ivan, MANCARELLA, Giovanni, MARSELLA, GIOVANNI, MARTELLO, Daniele, PANAREO, Marco, C., Bacci, K. Z., Bao, F., Barone, B., Bartoli, Bernardini, Paolo, S., Bussino, E., Calloni, B. Y., Cao, R., Cardarelli, S., Catalanotti, S., Cavaliere, F., Cesaroni, P., Creti, Danzengluobu, B., D'ETTORRE PIAZZOLI, DE MITRI, Ivan, M., DE VINCENZI, T., DI GIROLAMO, G., DI SCIASCIO, Z. Y., Feng, Y., Fu, X. Y., Gao, Q. X., Geng, H. W., Guo, H. H., He, M., He, Q., Huang, M., Iacovacci, N., Iucci, H. Y., Jai, C. L., Jing, F. M., Kong, H. H., Kuang, Labaciren, B., Li, J. Y., Li, Z. Q., Liu, H., Lu, X. H., Ma, Mancarella, Giovanni, S. M., Mari, Marsella, Giovanni, Martello, Daniele, X. R., Meng, L., Milano, J., Mu, Panareo, Marco, Z. R., Peng, P., Pistilli, L., Saggese, R., Santonico, P. R., Shen, C., Stanescu, L. R., Sun, S. C., Sun, A., Surdo, Y. H., Tan, S., Vernetto, C. R., Wang, H., Wang, H. Y., Wang, Y. N., Wei, H. T., Yang, Q. K., Yao, G. C., Yu, X. D., Yue, A. F., Yuan, M., Zha, H. M., Zhang, J. L., Zhang, N. J., Zhang, X. Y., Zhang, Zhaxisangzhu, Zhaxiciren, Q. Q., Zhu, Baccia, The ARGO YBJ C. o. l. l. a. b. o. r. a. t. i. o. n. C., K. Z., Baob, F., Baronec, B., Bartolic, P., Bernardinid, S., Bussinoa, E., Callonic, B. Y., Caoe, R., Cardarellif, S., Catalanottic, S., Cavalierec, F., Cesaronid, P., Cretid, Danzengluobug, B., D’Ettorrepiazzolic, M., De Vincenzia, T., Di Girolamoc, G., Di Sciascioc, Z. Y., Fengh, Y., Fue, X. Y., Gaoi, Q. X., Gengi, H. W., Guog, H. H., Hej, M., Hee, Q., Huangh, M., Iacovaccic, N., Iuccia, H. Y., Jaih, C. L., Jingj, F. M., Konge, H. H., Kuangj, Labacireng, B., Lib, J. Y., Lie, Z. Q., Liui, H., Luj, X. H., Maj, G., Mancarellad, Mari, Stefano Maria, A, G., Marsellad, D., Martellod, X. R., Mengg, L., Milanoc, J., Mui, M., Panareod, Z. R., Pengj, P., Pistillia, L., Saggesec, R., Santonicof, P. R., Shenj, C., Stanescua, L. R., Sunb, S. C., Sunb, A., Surdod, Y. H., Tanj, S., Vernettok, C. R., Wange, H., Wangj, H. Y., Wangj, Y. N., Weib, H. T., Yangj, Q. K., Yaob, G. C., Yuh, X. D., Yueb, A. F., Yuang, M., Zhaj, H. M., Zhangj, J. L., Zhangj, N. J., Zhange, X. Y., Zhange, Zhaxisangzhug, Zhaxicireng, and Q. Q., Zhuj

Subjects
Physics, Nuclear and High Energy Physics, Resistive touchscreen, Range (particle radiation), ARGO-YBJ, Detector, Cosmic ray, STRIPS, Cosmic Ray, Atomic and Molecular Physics, and Optics, Charged particle, law.invention, Nuclear physics, law, Shower detectors, Cosmic Ray, Resistive Plate Counters, Composition Model, Extensive Air Showers, Energy (signal processing), Argo
Abstract

The ARGO-YBJ experiment is currently under construction at the Yangbajing Cosmic Ray Laboratory (4300 m a.s.l.).The detector consists of a central carpet, 74 × 78 m2, made of a single layer of Resistive Plate Counters (RPCs), and surrounded by a partially instrumented guard ring for a total instrumented area of about 6700 m2. The digital read-out, performed by means of pick-up electrodes 6.7 × 62 cm2 (strip), allows to measure the charged particle number of small size air showers. The technique of counting the number of fired strips on the ARGO carpet corresponds to operate in the 10÷500 TeV energy region where both direct and indirect measurements on the primary cosmic radiation have been performed. Many composition models have been proposed by different experiments. In this work we discuss the ability of the ARGO detector to discriminate among some models.

Published
2004

12. 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. 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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. 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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

13. Measurement of the bb(bar) Cross Section in 800 GeV/c Proton-Silicon Interactions

Author

T. ALEXOPOULOS, L. ANTONIAZZI, M. ARENTON, H. C. BALLAGH, H. BINGHAM, A. BLANKMAN, M. BLOCK, A. BODEN, G. BONOMI, Z. L. CAO, T. Y. CHEN, K. CLARK, D. CLINE, S. CONETTI, M. COOPER, G. CORTI, B. COX, P. CRETI, C. DUKES, C. DURANDET, A. R. ERWIN, L. FORTNEY, V. GOLOVATYUK, F. GRANCAGNOLO, K. HAGAN INGRAM, M. HAIRE, P. HANLET, M. HE, G. INTROZZI, M. JENKINS, D. JUDD, W. KONONENKO, W. KOWALD, K. LAU, A. LEDOVSKOY, G. LIGUORI, J. LYS, P. O. MAZUR, A. MCMANUS, S. MISAWA, G. H. MO, C. T. MURPHY, K. NELSON, V. POGOSIAN, S. RAMACHANDRAN, J. RHOADES, W. SELOVE, R. P. SMITH, L. SPIEGEL, J. G. SUN, S. TOKAR, P. TORRE, J. TRISCHUK, L. TURNBULL, D. E. WAGONER, C. R. WANG, C. WEI, W. YANG, N. YAO, N. J. ZHANG, B. T. ZOU, ELIA, Valerio, GORINI, Edoardo, PANAREO, Marco, T., Alexopoulo, L., Antoniazzi, M., Arenton, H. C., Ballagh, H., Bingham, A., Blankman, M., Block, A., Boden, G., Bonomi, Z. L., Cao, T. Y., Chen, K., Clark, D., Cline, S., Conetti, M., Cooper, G., Corti, B., Cox, P., Creti, C., Duke, C., Durandet, Elia, Valerio, A. R., Erwin, L., Fortney, V., Golovatyuk, Gorini, Edoardo, F., Grancagnolo, K., HAGAN INGRAM, M., Haire, P., Hanlet, M., He, G., Introzzi, M., Jenkin, D., Judd, W., Kononenko, W., Kowald, K., Lau, A., Ledovskoy, G., Liguori, J., Ly, P. O., Mazur, A., Mcmanu, S., Misawa, G. H., Mo, C. T., Murphy, K., Nelson, Panareo, Marco, V., Pogosian, S., Ramachandran, J., Rhoade, W., Selove, R. P., Smith, L., Spiegel, J. G., Sun, S., Tokar, P., Torre, J., Trischuk, L., Turnbull, D. E., Wagoner, C. R., Wang, C., Wei, W., Yang, N., Yao, N. J., Zhang, and B. T., Zou

Abstract

The cross section for bb̅ production in 800GeV/c pN interactions has been measured in Fermilab experiment E771 to be 43-17+27(stat)-7+7(syst)nb per nucleon from the observation of events in which both the b and the b̅ decay semimuonically or a B decays into a J/ψ followed by J/ψ→μ+μ-.

Published
1999

14. An improved measurement of BO-BO mixing in ZO decays

Author

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

Subjects
Physics, rnuons, Nuclear and High Energy Physics, Muon, Condensed matter physics, dilepton events, 010308 nuclear & particles physics, Electron–positron annihilation, Física, Electron, 01 natural sciences, lcsh:QC1-999, Nuclear physics, 0103 physical sciences, 010306 general physics, Mixing (physics), Ciencias Exactas, L3 data, lcsh:Physics
Abstract

A more precise determination of the B°-B ° mixing parameter in Z ° decays based on a fourfold increase in statistics has been made using the 1990 and t99t L3 data. The analysis of the dilepton events, rnuons and electrons, gives: Za = 0.121 + 0.017 (stat) :t: 0.006 (sys). Using the value Of Xd measured at the "f(4S) we derive the following limit for Zs: Zs > 0.16 (90% CL)., Facultad de Ciencias Exactas

Published
1992

15. Measurement of the inclusive production of neutral pions and charged particles on the Z0 resonance

Author

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

Subjects
Quantum chromodynamics, Physics, Nuclear and High Energy Physics, Particle physics, Annihilation, 010308 nuclear & particles physics, Electron–positron annihilation, High Energy Physics::Phenomenology, Hadron, 7. Clean energy, 01 natural sciences, Charged particle, Nuclear physics, Pion, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], High Energy Physics::Experiment, Center of mass, Nuclear Experiment, 010306 general physics, Parton shower, GeneralLiterature_REFERENCE(e.g.,dictionaries,encyclopedias,glossaries), Particle Physics - Experiment
Abstract

We present a study of the inclusive production of neutral pions and charged particles from 112 000 hadronic Z 0 decays. The measured inclusive momentum distributions can be reproduced by parton shower Monte Carlo programs and also by an analytical QCD calculation. Comparing our results to e + e − data between √ s = 9 and 91 GeV, we findfind that the evolution of the spectra with center of mass energy is consistent with the QCD predictions.

Published
1991

16. Differential cross sections of J/psi and psi' in 800 GeV/c p-Si interactions

Author

T. Alexopoulos, L. Antoniazzi, M. Arenton, H. C. Ballagh, H. Bingham, A. Blankman, M. Block, A. Boden, G. Bonomi, Z. L. Cao, T. Y. Chen, K. Clark, D. Cline, S. Conetti, M. Cooper, G. Corti, B. Cox, P. Creti, C. Dukes, C. Durandet, V. Elia, A. R. Erwin, L. Fortney, V. Golovatyuk, F. Grancagnolo, K. HaganIngram, M. Haire, P. Hanlet, M. He, G. Introzzi, M. Jenkins, D. Judd, W. Kononenko, W. Kowald, K. Lau, A. Ledovskoy, G. Liguori, J. Lys, P. O. Mazur, A. McManus, S. Misawa, G. H. Mo, C. T. Murphy, K. Nelson, PANAREO, Marco, V. Pogosian, S. Ramachandran, J. Rhoades, W. Selove, R. P. Smith, L. Spiegel, J. G. Sun, S. Tokar, P. Torre, J. Trischuk, L. Turnbull, D. E. Wagoner, C. R. Wang, C. Wei, W. Yang, N. Yao, N. J. Zhang, B. T. Zou, GORINI, Edoardo, T., Alexopoulo, L., Antoniazzi, M., Arenton, H. C., Ballagh, H., Bingham, A., Blankman, M., Block, A., Boden, G., Bonomi, Z. L., Cao, T. Y., Chen, K., Clark, D., Cline, S., Conetti, M., Cooper, G., Corti, B., Cox, P., Creti, C., Duke, C., Durandet, V., Elia, A. R., Erwin, L., Fortney, V., Golovatyuk, Gorini, Edoardo, F., Grancagnolo, K., Haganingram, M., Haire, P., Hanlet, M., He, G., Introzzi, M., Jenkin, D., Judd, W., Kononenko, W., Kowald, K., Lau, A., Ledovskoy, G., Liguori, J., Ly, P. O., Mazur, A., Mcmanu, S., Misawa, G. H., Mo, C. T., Murphy, K., Nelson, Panareo, Marco, V., Pogosian, S., Ramachandran, J., Rhoade, W., Selove, R. P., Smith, L., Spiegel, J. G., Sun, S., Tokar, P., Torre, J., Trischuk, L., Turnbull, D. E., Wagoner, C. R., Wang, C., Wei, W., Yang, N., Yao, N. J., Zhang, and B. T., Zou

Published
1997

17. Production of J/psi, psi' and Upsilon in 800 GeV/c proton-silicon interactions

Author

T. Alexopoulos, L. Antoniazzi, M. Arenton, H. C. Ballagh, H. Bingham, A. Blankman, M. Block, A. Boden, G. Bonomi, S. V. Borodin, J. Budagov, Z. L. Cao, G. Cataldi, T. Y. Chen, K. Clark, D. Cline, S. Conetti, M. Cooper, G. Corti, B. Cox, P. Creti, C. Dukes, C. Durandet, A. R. Erwin, E. Evangelista, L. Fortney, V. Golovatyuk, F. Grancagnolo, K. HaganIngram, M. Haire, P. Hanlet, M. He, G. Introzzi, M. Jenkins, J. Jennings, D. Judd, W. Kononenko, W. Kowald, K. Lau, T. Lawry, A. Ledovskoy, G. Liguori, J. Lys, P. O. Mazur, A. P. McManus, S. Misawa, G. H. Mo, C. T. Murphy, K. Nelson, V. Pogosyan, S. Ramachandran, M. Recagni, J. Rhoades, J. Segal, W. Selove, R. P. Smith, L. Spiegel, J. G. Sun, S. Tokar, P. Torre, J. Trischuk, L. Turnbull, I. Tzamouranis, D. E. Wagoner, C. R. Wang, C. Wei, W. Yang, N. Yao, N. J. Zhang, S. N. Zhang, B. T. Zou, ELIA, Valerio, GORINI, Edoardo, PANAREO, Marco, T., Alexopoulo, L., Antoniazzi, M., Arenton, H. C., Ballagh, H., Bingham, A., Blankman, M., Block, A., Boden, G., Bonomi, S. V., Borodin, J., Budagov, Z. L., Cao, G., Cataldi, T. Y., Chen, K., Clark, D., Cline, S., Conetti, M., Cooper, G., Corti, B., Cox, P., Creti, C., Duke, C., Durandet, Elia, Valerio, A. R., Erwin, E., Evangelista, L., Fortney, V., Golovatyuk, Gorini, Edoardo, F., Grancagnolo, K., Haganingram, M., Haire, P., Hanlet, M., He, G., Introzzi, M., Jenkin, J., Jenning, D., Judd, W., Kononenko, W., Kowald, K., Lau, T., Lawry, A., Ledovskoy, G., Liguori, J., Ly, P. O., Mazur, A. P., Mcmanu, S., Misawa, G. H., Mo, C. T., Murphy, K., Nelson, Panareo, Marco, V., Pogosyan, S., Ramachandran, M., Recagni, J., Rhoade, J., Segal, W., Selove, R. P., Smith, L., Spiegel, J. G., Sun, S., Tokar, P., Torre, J., Trischuk, L., Turnbull, I., Tzamourani, D. E., Wagoner, C. R., Wang, C., Wei, W., Yang, N., Yao, N. J., Zhang, S. N., Zhang, and B. T., Zou

Published
1996

18. Search for the flavor changing neutral current decay D-0->mu(+)mu(-) in 800 GeV proton-silicon interactions

Author

T. Alexopoulos, L. Antoniazzi, M. Arenton, H. C. Ballagh, H. Bingham, A. Blankman, M. Block, A. Boden, G. Bonomi, S. V. Borodin, J. Budagov, Z. L. Cao, G. Cataldi, T. Y. Chen, K. Clark, D. Cline, S. Conetti, M. Cooper, G. Corti, B. Cox, P. Creti, E. C. Dukes, C. Durandet, A. R. Erwin, E. Evangelista, L. Fortney, V. Golovatyuk, F. Grancagnolo, K. HaganIngram, M. Haire, P. Hanlet, M. He, G. Introzzi, M. Jenkins, J. Jennings, D. Judd, W. Kononenko, W. Kowald, K. Lau, T. Lawry, A. Ledovskoy, G. Liguori, J. Lys, P. O. Mazur, A. McManus, S. Misawa, G. Mo, C. T. Murphy, K. Nelson, V. Pogosian, S. Ramachandran, M. Recagni, J. Rhoades, J. Segal, W. Selove, R. P. Smith, L. Spiegel, J. G. Sun, S. Tokar, P. Torre, J. Trischuk, L. Turnbull, I. Tzamouranis, D. E. Wagoner, C. R. Wang, C. Wei, W. Yang, N. Yao, N. J. Zhang, S. N. Zhang, B. T. Zou, ELIA, Valerio, GORINI, Edoardo, PANAREO, Marco, T., Alexopoulo, L., Antoniazzi, M., Arenton, H. C., Ballagh, H., Bingham, A., Blankman, M., Block, A., Boden, G., Bonomi, S. V., Borodin, J., Budagov, Z. L., Cao, G., Cataldi, T. Y., Chen, K., Clark, D., Cline, S., Conetti, M., Cooper, G., Corti, B., Cox, P., Creti, E. C., Duke, C., Durandet, Elia, Valerio, A. R., Erwin, E., Evangelista, L., Fortney, V., Golovatyuk, Gorini, Edoardo, F., Grancagnolo, K., Haganingram, M., Haire, P., Hanlet, M., He, G., Introzzi, M., Jenkin, J., Jenning, D., Judd, W., Kononenko, W., Kowald, K., Lau, T., Lawry, A., Ledovskoy, G., Liguori, J., Ly, P. O., Mazur, A., Mcmanu, S., Misawa, G., Mo, C. T., Murphy, K., Nelson, Panareo, Marco, V., Pogosian, S., Ramachandran, M., Recagni, J., Rhoade, J., Segal, W., Selove, R. P., Smith, L., Spiegel, J. G., Sun, S., Tokar, P., Torre, J., Trischuk, L., Turnbull, I., Tzamourani, D. E., Wagoner, C. R., Wang, C., Wei, W., Yang, N., Yao, N. J., Zhang, S. N., Zhang, and B. T., Zou

Subjects
PHYSICS, LUND MONTE-CARLO, UPPER LIMIT, D-MESON PRODUCTION
Abstract

We have searched for the flavor changing neutral current decay D-0 --> mu(+)mu(-) in the dimuon data obtained by the E771 experiment conducted at Fermilab. No evidence is found. A 90% confidence level upper limit of 4.2 x 10(-6) is obtained for the branching ratio. This new upper limit is about two times lower than the best published result.

Published
1996

19. High mass dimuon states produced in 800 GeV/c pSi interactions

Author

T. ALEXOPOULOS, L. ANTONIAZZI, M. ARENTON, H. C. BALLAGH, H. BINGHAM, A. BLANKMAN, M. BLOCK, A. BODEN, G. BONOMI, S. V. BORODIN, Y.U. BUDAGOV, Z. L. CAO, G. CATALDI, T. Y. CHEN, K. CLARK, D. CLINE, S. CONETTI, M. COOPER, G. CORTI, B. COX, P. CRETI, C. DUKES, C. DURANDET, A. R. ERWIN, E. EVANGELISTA, L. FORTNEY, V. GOLOVATYUK, F. GRANCAGNOLO, K. HAGAN INGRAM, M. HAIRE, P. HANLET, M. HE, G. INTROZZI, M. JENKINS, J. JENNINGS, D. JUDD, W. KONONENKO, W. KOWALD, K. LAU, T. LAWRY, A. LEDOVSKOY, G. LIGUORI, J. LYS, P. O. MAZUR, A. MCMANUS, S. MISAWA, G. H. MO, C. T. MURPHY, K. NELSON, V. POGOSIAN, S. RAMACHANDRAN, M. RECAGNI, J. RHOADES, J. SEGAL, W. SELOVE, R. P. SMITH, L. SPIEGEL, J. G. SUN, S. TOKAR, P. TORRE, J. TRISCHUK, L. TURNBULL, I. TZAMOURANIS, D. E. WAGONER, C. R. WANG, C. WEI, W. YANG, N. YAO, N. J. ZHANG, S. N. ZHANG, B. T. ZOU, ELIA, Valerio, GORINI, Edoardo, PANAREO, Marco, Sally Seidel, T., Alexopoulo, L., Antoniazzi, M., Arenton, H. C., Ballagh, H., Bingham, A., Blankman, M., Block, A., Boden, G., Bonomi, S. V., Borodin, Budagov, Y. U., Z. L., Cao, G., Cataldi, T. Y., Chen, K., Clark, D., Cline, S., Conetti, M., Cooper, G., Corti, B., Cox, P., Creti, C., Duke, C., Durandet, Elia, Valerio, A. R., Erwin, E., Evangelista, L., Fortney, V., Golovatyuk, Gorini, Edoardo, F., Grancagnolo, K., HAGAN INGRAM, M., Haire, P., Hanlet, M., He, G., Introzzi, M., Jenkin, J., Jenning, D., Judd, W., Kononenko, W., Kowald, K., Lau, T., Lawry, A., Ledovskoy, G., Liguori, J., Ly, P. O., Mazur, A., Mcmanu, S., Misawa, G. H., Mo, C. T., Murphy, K., Nelson, Panareo, Marco, V., Pogosian, S., Ramachandran, M., Recagni, J., Rhoade, J., Segal, W., Selove, R. P., Smith, L., Spiegel, J. G., Sun, S., Tokar, P., Torre, J., Trischuk, L., Turnbull, I., Tzamourani, D. E., Wagoner, C. R., Wang, C., Wei, W., Yang, N., Yao, N. J., Zhang, S. N., Zhang, and B. T., Zou

Subjects
branching ratio [channel cross section], leptonic decay [psi mesons], hadroproduction [psi(3685)], silicon, x-dependence [differential cross section], dimuon [mass spectrum], hadroproduction [Upsilon(9460)], experimental result [magnetic spectrometer], Albuquerque 1994/08/02, hadroproduction [J/psi(3100)], dependence [transverse momentum], pair production [muon], inclusive reaction [p nucleus], Batavia TEVATRON PS
Published
1994

20. 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

21. The ARGO-YBJ experiment in Tibet

Author

A. ALOISIO, C. BACCI, K. Z. BAO, F. BARONE, B. BARTOLI, P. BERNARDINI, C. BLEVE, P. BRANCHINI, S. BUSSINO, E. CALLONI, P. CAMARRI, B. Y. CAO, R. CARDARELLI, M. CASOLINO, S. CATALANOTTI, A. CAVALIERE, S. CAVALIERE, F. CESARONI, M. CHA, P. CRETI, G. CUSIMANO, G. D'ALI STAITI, DANZENGLUOBU, V. D'ELIA, B. D'ETTORRE PIAZZOLI, M. DE VINCENZI, T. DI GIROLAMO, G. DI SCIASCIO, Z. Y. FENG, Y. FU, X. Y. GAO, Q. X. GENG, H. W. GUO, H. H. HE, Q. HUANG, M. IACOVACCI, N. IUCCI, H. Y. JAI, F. M. KONG, H. H. KUANG, LABACIREN, B. LI, J. Y. LI, B. LIBERTI, G. LIGUORI, Z. Q. LIU, H. LU, X. H. MA, G. MANCARELLA, S. M. MARI, MARSELLA, GIOVANNI, MARTELLO, Daniele, X. R. MENG, L. MILANO, T. MINEO, J. MU, L. NICASTRO, D. ORLANDO, A. PAOLONI, Z. R. PENG, P. PISTILLI, G. RASO, B. SACCO, L. SAGGESE, R. SANTONICO, L. SCARSI, P. R. SHEN, C. STANESCU, M. STORINI, L. R. SUN, S. C. SUN, A. SURDO, Y. H. TAN, P. VALLANIA, S. VERNETTO, C. R. WANG, H. WANG, H. Y. WANG, Y. N. WEI, Q. K. YAO, G. C. YU, X. D. YUE, A. F. YUAN, H. M. ZHANG, J. L. ZHANG, N. J. ZHANG, T. J. ZHANG, X. Y. ZHANG, ZHAXISANGZHU, ZHAXICIREN, Q. Q. ZHU, DE MITRI, Ivan, PANAREO, Marco, Aloisio, A., Bacci, C., Bao, K. Z., Barone, F., Bartoli, B., Bernardini, P., Bleve, C., Branchini, P., Bussino, S., Calloni, E., Camarri, P., Cao, B. Y., Cardarelli, R., Casolino, M., Catalanotti, S., Cavaliere, A., Cavaliere, S., Cesaroni, F., Cha, M., Creti, P., Cusimano, G., D'ALI STAITI, G., Danzengluobu, D'Elia, V., DE MITRI, Ivan, D'ETTORRE PIAZZOLI, B., DE VINCENZI, M., DI GIROLAMO, T., DI SCIASCIO, G., Feng, Z. Y., Fu, Y., Gao, X. Y., Geng, Q. X., Guo, H. W., H. H., He, Huang, Q., Iacovacci, M., Iucci, N., Jai, H. Y., Kong, F. M., Kuang, H. H., Labaciren, Li, B., J. Y., Li, Liberti, B., Liguori, G., Liu, Z. Q., Lu, H., X. H., Ma, Mancarella, G., Mari, S. M., Marsella, Giovanni, Martello, Daniele, Meng, X. R., Milano, L., Mineo, T., Mu, J., Nicastro, L., Orlando, D., Panareo, Marco, Paoloni, A., Peng, Z. R., Pistilli, P., Raso, G., Sacco, B., Saggese, L., Santonico, R., Scarsi, L., Shen, P. R., Stanescu, C., Storini, M., Sun, L. R., Sun, S. C., Surdo, A., Tan, Y. H., Vallania, P., Vernetto, S., Wang, C. R., Wang, H., Wang, H. Y., Wei, Y. N., Yao, Q. K., G. C., Yu, Yue, X. D., Yuan, A. F., Zhang, H. M., Zhang, J. L., Zhang, N. J., Zhang, T. J., Zhang, X. Y., Zhaxisangzhu, Zhaxiciren, and Zhu, Q. Q.

Subjects
Ground based detectors, Gamma-ray sources, Gamma-ray bursts, Cosmic rays
Published
2001

22. A study of the shadowing of galactic cosmic rays by the sun in a quiet phase of solar activity with the Tibet air shower array

Author

M. Amenomori, S. Ayabe, null Caidong, null Danzengluobu, L. K. Ding, Z. Y. Feng, Y. Fu, H. W. Guo, M. He, K. Hibino, N. Hotta, Q. Huang, A. X. Huo, K. Izu, H. Y. Jia, F. Kajino, K. Kasahara, Y. Katayose, null Labaciren, J. Y. Li, H. Lu, S. L. Lu, G. X. Luo, X. R. Meng, K. Mizutani, J. Mu, H. Nanjo, M. Nishizawa, M. Ohnishi, I. Ohta, T. Ouchi, Z. R. Peng, J. R. Ren, T. Saito, M. Sakata, T. Sasaki, Z. Z. Shi, M. Shibata, A. Shiomi, T. Shirai, Y. Suga, H. Sugimoto, K. Taira, Y. H. Tan, N. Tateyama, S. Torii, T. Utsugi, C. R. Wang, H. Wang, X. W. Xu, Y. Yamamoto, G. C. Yu, A. F. Yuan, T. Yuda, C. S. Zhang, H. M. Zhang, J. L. Zhang, N. J. Zhang, X. Y. Zhang, null Zhaxiciren, and null Zhaxisangzhu

Subjects
Physics, Solar minimum, Astrophysics (astro-ph), FOS: Physical sciences, Astronomy and Astrophysics, Cosmic ray, Astrophysics, Solar cycle, Air shower, Earth's magnetic field, Space and Planetary Science, Shadow, Physics::Space Physics, Astrophysics::Solar and Stellar Astrophysics, Ultra-high-energy cosmic ray, Astrophysics::Earth and Planetary Astrophysics, Interplanetary spaceflight
Abstract

We have shown that the Sun's shadow by high energy cosmic rays moves year by year and its behavior is correlated with a time variation of the large-scale structure of the solar and interplanetary magnetic fields. The solar activity was near minimum in the period from 1996 through 1997. Using the data obtained with the Tibet air shower array, we examined the shadowing of cosmic rays by the Sun in this quiet phase of solar cycle, and found that the Sun's shadow was just in the apparent direction of the Sun, though it was observed at the position considerably away from the Sun to the south-west in the period between 1990 and 1993. It is known that the magnetic pole of equivalent solar dipole was reversed during the previous active phase, and near solar minimum the dipole was aligned with the rotating axis, preserving its N-pole on the north pole side of the Sun. This causes the solar magnetic field to shift the Sun's shadow to the east. Thus, the observed results suggest that the shift of the Sun's shadow due to the solar magnetic field was pushed back by the effect of the geomagnetic field, since the geomagnetic field always make the shadow shift to the west. We discuss the Sun's shadow observed during the period near solar minimum in 1996-1997 and compare it with the simulation results., 13 pages, 6 figures, to appear in ApJ

Published
2000

23. Measurement of air shower cores to study the cosmic ray composition in the knee energy region

Author

A. X. Huo, K. Izu, N. J. Zhang, S. L. Lu, N. Tateyama, H. W. Guo, Jia Zhang, S. Torii, X. R. Meng, Y. Fu, M. He, Z. Z. Shi, M. Amenomori, C. S. Zhang, Jieru Ren, T. Sasaki, Huaguang Wang, Masaki Nishizawa, Zhaxisangzhu, Z. Y. Feng, M. Shibata, M. Sakata, K. Hibino, T. Yuda, A. Shiomi, T. Ouchi, Y. H. Tan, Zhaxiciren, H. M. Zhang, J. Y. Li, J. Mu, I. Ohta, H. Sugimoto, H. Nanjo, C. R. Wang, Danzengluobu, Y. Yamamoto, G. C. Yu, X. W. Xu, Q. Huang, S. Ayabe, L. K. Ding, A. F. Yuan, F. Kajino, Caidong, Z. R. Peng, G. X. Luo, Labaciren, M. Ohnishi, T. Shirai, H. Y. Jia, T. Utsugi, N. Hotta, X. Y. Zhang, Hsiao-Chi Lu, K. Taira, To. Saito, K.Mizutani K.Mizutani, Katsuaki Kasahara, and Y. Katayose

Subjects
Physics, Nuclear and High Energy Physics, Astrophysics (astro-ph), Monte Carlo method, FOS: Physical sciences, Cosmic ray, Astrophysics, Nuclear physics, Air shower, Event data, Scintillation counter, Nuclear emulsion, Detector array, Energy (signal processing)
Abstract

Since 1996, a hybrid experiment consisting of an emulsion chamber and a burst detector array and the Tibet-II air shower array has been operated at Yangbajing (4300 m above sea level) in Tibet. This experiment can detect air-shower cores, called burst events, accompanied by air showers in excess of about 100 TeV. Using the burst event data observed by this experiment, we discuss the primary cosmic ray composition around the knee in comparison with the Monte Carlo simulations. In this paper, we show that all the features of burst events are wholly compatible with the heavy enriched composition in the knee energy region., 20 pages, 21 figures, to appear in Physical Review D

Published
2000

24. 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. 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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

25. Search for Lepton Flavor Violation in Z-Decays

Author

Egidio Longo, G. J. Bobbink, Dimitri Bourilkov, Roberto Battiston, A. A. Syed, Y. J. Pei, J. Alcaraz, B. Ille, E. Fiandrini, B. Borgia, Z. Y. Lin, M. Rescigno, L. Urbán, A. Krivshich, S. Schulte, S. Khokhar, H. Anderhub, A. Sopczak, B. N. Jin, F. Wittgenstein, J. Ulbricht, Konrad Deiters, Z. D. Qi, W. Y. Chen, C. Dionisi, J. M. Le Goff, Pablo Garcia-Abia, W. Friebel, M. Yzerman, C. Willmott, W. J. Burger, G. Forconi, Alberto Aloisio, A. Ricker, M. A. Niaz, Y. G. Kim, Maurizio Biasini, H. Kuijten, Harvey B Newman, D. P. Stickland, K. Hilgers, J. S. Kapustinsky, C. Chen, R. Becker, K. L. Tung, Jun Guo, B. Lindemann, D. H. Zhang, F. Sticozzi, C. Zaccardelli, Marcel Merk, Pierluigi Paolucci, Alain Hervé, A. Lebedev, Dong-Chul Son, Marta Felcini, George Alverson, J. C. Sens, G. Yang, P. V.K.S. Baba, A. Bay, J. D. Burger, Wt Lin, X. D. Cai, C. Li, A. Kasser, Guofan Hu, J. Busenitz, J. A. Bakken, M. Sassowsky, L. Antonov, O. Fackler, J. J. Blaising, W. W. Kinnison, S. C. Yeh, J. Perrier, Stefano Giagu, Carlo Civinini, M. N. Kienzle-Focacci, D. Perret-Galliz, R. Rosmalen, M. Maolinbay, G. Raven, L. Djambazov, B. L. Betev, C. R. Wang, D. Duchesneau, I. Sheer, S. Reucroft, P. A. Piroué, M. Gailloud, T. Paul, M. Bourquin, Y. F. Wang, N. Yunus, Francesco Becattini, M. Brooks, M. Vivargent, M. Sachwitz, K. Strauch, M. Aguilar-Benitez, C. Gu, S. Easo, B. C.C. van der Zwaan, Maria-Teresa Dova, Raffaello D'Alessandro, Yu. Galaktionov, N. Zaitsev, A. Kunin, G. Gratta, Herwig Schopper, B. Zhou, D. Z. Shen, J. G. Xu, A. Tsaregorodtsev, C. Neyer, M. Bosetti, P. G. Rancoita, H. Postema, R. Leiste, T. J. Wenaus, F. Ferroni, Leonardo Merola, V. Plyaskin, Christoph Paus, Y. Zeng, E. Dénes, K. Y. Lee, P. Zemp, T. Azemoon, S. Chung, I. Vetlitsky, W. van Rossum, J. G. Branson, Marco Meschini, M. Wadhwa, D. J. Schotanus, G. S. Sanders, R. Klöckner, D. Kirkby, R. de Asmundis, L. Ludovici, Stefan Roth, Marcos Cerrada, H. Nowak, Adrian Biland, E. Drago, R. Morand, G. Fernandez, C. Spartiotis, A.M. Cartacci, V. R. Krastev, G. Landi, H.R. Dimitrov, G. Terzi, R. Raghavan, A. C. König, D. Antreasyan, H. T. Li, U. K. Chaturvedi, W. J. Metzger, Francesca Nessi-Tedaldi, A. Nadtochy, U. Becker, J. S. Lee, J. Tóth, K. N. Qureshi, J. Mnich, C. Maña, S. J. Fan, X. W. Tang, G. Rahal-Callot, C. Wang, M. Guanziroli, M. Möller, Fj Eppling, Davide Piccolo, P. Kapinos, P. Duinker, R. Mount, Q. An, J. A. Rubio, I. Duran, Simonetta Gentile, H. O. Cohn, A. L. Anderson, Howard A. Stone, T.S. Dai, P. Schmitz, A. Klimentov, Roberto Castello, C. Warner, G. J. Zhou, L. W. Jones, Y. S. Lu, A. Buytenhuijs, S. Goldfarb, M. Schneegans, A. Bujak, A. Engler, Z. L. Ren, M. Capell, A. Degré, K. Schultze, W. Wallraff, P. H. Fisher, C. G. Yang, Kenneth Francis Read, K. Freudenreich, H. Suter, D. Fernandez, J. Berdugo, J. T. He, H. S. Chen, X. T. Cui, H. S. Fesefeldt, E. Nagy, Christopher George Tully, J. P. Martin, D. Lanske, J. Bechtluft, Ingrid U. Scott, Z. Z. Xu, F. L. Linde, G. Chiefari, D. Hauschildt, S. Shevchenko, V. Pojidaev, Q. Ye, Jorg Wenninger, S. Banerjee, Z. F. Gong, K. Sudhakar, O. Rind, S. M. Ting, Hafeez R. Hoorani, G. B. Mills, D. Goujon, J. M. Ma, S. Pensotti, Valery Schegelsky, Antonino Zichichi, P. Razis, F. Behner, A. Pevsner, A. Rubbia, S. Ahlen, Andrea Baschirotto, L. Martinez-Laso, G. Chen, I. C. Brock, X. Y. Cui, Y. Y. Xie, G. Sauvage, P. Lebrun, W. Kittel, Georgi Sultanov, J. M. Lubbers, L. Z. Sun, R. Fabbretti, Z. L. Xue, J. B. Ye, Tariq Aziz, Jianming Qian, G. Hu, M. Rattaggi, S. Wynhoff, E. Shumilov, X. L. Wang, G. M. Chen, D. H. Wright, N. Gheordanescu, G. M. Bilei, V. P. Andreev, D. Gele, V. Shoutko, A. Nippe, B. C. Riemers, H. Rykaczewski, Giovanni Organtini, Andrea Contin, M. Chemarin, T. E. Coan, X. R. Shi, Alexander Malinin, Felicitas Pauss, P. Spillantini, Tobias Kramer, P. Vikas, S. Patricelli, Wolfgang Lohmann, Sabine Riemann, M. Fabre, S. Rosier-Lees, R. Barillère, P. Le Coultre, E. Koffeman, M. Tonutti, U. Vikas, B. Monteleoni, Georgios Tsipolitis, K. Hangarter, Igor Vorobiev, H. Vogt, B. Bertucci, L. Fredj, J. K. Kim, R. Starosta, Gy L. Bencze, W.G. Ma, Reinhard W. Schulte, M. Hebert, Y. H. Chang, Crisostomo Sciacca, Marco Pieri, B. P. Roe, J. Bao, P. G. Seiler, Y. Mir, E. Valente, S. C. Kim, Attilio Santocchia, Jean Fay, S. N. Ganguli, M. Dhina, D. McNally, N. E. Moulai, G. Viertel, H. A. Rizvi, Oliver Kornadt, M. Pohl, J. M. You, M. Caria, Nicanor Colino, V. K. Gupta, Hans J. Vogel, S. Morganti, A. Koulbardis, R. Malik, J. Schwenke, D. Pandoulas, V. Koutsenko, T. Spickermann, Michael Dittmar, Giovanni Ambrosi, Charles Leggett, A. Atamanchuk, I. Clare, S. Ro, R. Bizzarri, F. DeNotaristefani, A. Böhm, G. Coignet, D. S. Yan, Lamberto Luminari, R. Sehgal, Luciano Romero, P. Berges, R. C. Ball, Pierre Lecomte, H. R. Gustafson, Marcella Diemoz, G. Sartorelli, C. F. He, G. Schwering, Werner Lustermann, B. Wysłouch, H. Janssen, P. Arce, A. C. Weber, S. C. Tonwar, Kajari Mazumdar, F. Plasil, G. F. Susinno, T.R. McMahon, S. Müller, E. Gonzalez, Frank Filthaut, G. Mirabelli, H.F. Chen, Patricia McBride, J. M. Salicio, M. Pauluzzi, H. El Mamouni, B. C. Stringfellow, Thomas Ferguson, Samuel C.C. Ting, F. Cesaroni, M. Zeng, J. Y. Liao, G. Passaleva, M. W. Gruenewald, I. Josa-Mutuberria, P. Marchesini, M. M. Ilyas, K. Lübelsmeyer, V. Soulimov, J. F. Zhou, M. MacDermott, Emilio Leonardi, A. Marin, P. Extermann, D. M. Lee, B. Z. Yang, H. Hofer, Yueh-Feng Liu, R. Bock, L. Gutay, M. S. Sarakinos, R. A. Khan, R. Weill, M. Röhner, D. Ren, Z. W. Yin, A. Arefiev, E. Gallo, J. Shukla, F. Cotorobai, V. Innocente, M. Lenti, G. Carlino, Zheng Wang, Y. Karyotakis, S. Lanzano, R. T. Van de Walle, M. Chen, Martin White, D. Boutigny, John Swain, K. Riles, J. Salico, Peter Denes, M. T. Choi, F. Marzano, Paolo Bagnaia, W. Krenz, Stefan Kirsch, F. J. Rodriguez, A. Gougas, Simone Paoletti, S. X. Wu, Manjit Kaur, An.A. Vorobyov, Y. Mi, D. DiBitonto, F. Marion, Ph. Rosselet, J. H. Field, C. Y. Chien, C. H. Ye, M. Steuer, A. Kirkby, O. Adriani, J. Weber, Lucas Taylor, J. Behrens, P. J. Li, D. Luckey, BT Bouwens, M. G. Alviggi, Zhiqing Zhang, F. C. Erné, U. Uwer, A. Chen, T. Angelescu, Ren-Yuan Zhu, Luciano Barone, L. Vuilleumier, D.W. Schmitz, G. Pascale, A. Gurtu, H. J. Schreiber, M. Fukushima, S. Shotkin, E. Brambilla, B. Hartmann, Yu. Kamyshkov, A. Hasan, G.G.G. Massaro, Claudio Luci, Robert Clare, S. Jezequel, Speranza Falciano, Thomas Hebbeker, Paul Lecoq, R. W. Kraemer, I. Leedom, A. Mihul, K. S. Kumar, M. Napolitano, L. Servoli, IHEF (IoP, FNWI), Flores, Sylvie, 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., 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., Bourqin, 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., 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, J., 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., Ogantini, 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. 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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), and L3

Subjects
Nuclear and High Energy Physics, Particle physics, [PHYS.HEXP] Physics [physics]/High Energy Physics - Experiment [hep-ex], Electron–positron annihilation, Flavour, Z boson decays, Elementary particle, 01 natural sciences, Nuclear physics, BHABHA SCATTERING, MONTE-CARLO, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], RADIATIVE-CORRECTIONS, 010306 general physics, DETECTOR, GeneralLiterature_REFERENCE(e.g.,dictionaries,encyclopedias,glossaries), Ciencias Exactas, Bhabha scattering, HIGH-ENERGIES, Physics, 010308 nuclear & particles physics, Branching fraction, High Energy Physics::Phenomenology, lepton flavour violation, Física, lcsh:QC1-999, MODEL, Z(0) DECAYS, Large Electron–Positron Collider, High Energy Physics::Experiment, PHOTON CORRECTIONS, TAU, lepton pairs, Event (particle physics), Particle Physics - Experiment, lcsh:Physics, Lepton
Abstract

We have searched for lepton flavour violation in Z boson decays into lepton pairs using all data collected with the L3 detector during the 1990, 1991 and 1992 runs on an event sample corresponding to 1 500 000 2?s produced. At the 95% confidence level the upper limits on the branching ratio for Z--,etz is 0.6X 10 -s, for Z--.er this is 1.3X 10 -5 and for Z--*/zT this is 1.9X 10 -s., Facultad de Ciencias Exactas

Published
1993

26. 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. 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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

27. Chi(C)-Production in Hadronic Z-Decays

Author

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

Subjects
Physics, Nuclear and High Energy Physics, Particle physics, B-MESONS, [PHYS.HEXP] Physics [physics]/High Energy Physics - Experiment [hep-ex], 010308 nuclear & particles physics, Branching fraction, Electron–positron annihilation, Hadron, Elementary particle, 01 natural sciences, lcsh:QC1-999, 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), Particle Physics - Experiment, lcsh:Physics
Abstract

We report on inclusive chi(c) production in Z decays reconstructed via the decay mode chi(c) --> J + gamma. This analysis is based on 1.1 million hadronic Z events. Interpreting the observed signal as chi(c1), we obtain a branching ratio Br(Z --> chi(c1) + X) = (7.5 +/- 2.9(stat.) +/- 0.6(sys.)) x 10(-3). Assuming all events are produced in b decays we obtain Br(b --> chi(c1) + X) = (2.4 +/- 0.9(stat.) +/- 0.2(sys.)) x 10(-2). We also present an improved measurement of the branching ratio Br(Z --> J + X) = (3.6 +/- 0.5(stat.) +/- 0.4(sys.)) x 10(-3), obtained from dileptonic J decays.

Published
1993

28. 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

29. 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

30. Rapid Curing Epoxy Resin and its Application in Carbon Fibre Composite Fabricated Using VARTM Moulding.

Author

C. R. Wang, Y. Z. Gu, K. M. Zhang, M. li, and Z. G. Zhang

Subjects
*EPOXY resins, *CURING, *IMIDAZOLES, *ALIPHATIC amines, *CARBON fibers, *POLYMER research
Abstract

A rapid curing resin system made from the diglycidyl ether of bisphenol A epoxy, modified imidazole and modified aliphatic amine was developed. The curing behaviour and following characteristic of the resin were evaluated by differential scanning calorimetric and rheological analysis, respectively. Carbon fibre-reinforced polymer composite (CFRP) laminates using this resin system were manufactured through vacuum-assisted resin transfer moulding (VARTM) under short-term curing schedule. Subsequently, studies were performed on the processing quality, mechanical properties and heat resistance of the composites. The effects of post-cure duration on the interfacial bonding and the properties of the composites were investigated. The results showed that the curing time of a CFRP laminate using the studied resin under 120 °C could be controlled within 13 min with more than 95% curing degree and few defects. There were variations of the mechanical and thermal properties of the composites with different post-cure durations. The optimum properties were obtained after a post-cure process of 60 min, and extended post-cure treatment were detrimental. The corresponding mechanism was discussed from the viewpoint of interfacial bonding between carbon fibre and epoxy matrix. [ABSTRACT FROM AUTHOR]

Published
2013
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33. Excitons and surface luminescence of CdS nanoribbons.

Author

K. M. Ip, M. S., C. R. Wang, M. S., Quan Li, and Hark, S. K.

Subjects
*LUMINESCENCE, *ELECTRON microscopy, *SPECTRUM analysis, *PHOTOLUMINESCENCE, *OPTICS, *MICROSCOPY
Abstract

The morphology and optical properties of CdS nanoribbons were studied by transmission electron microscopy and photoluminescence spectroscopy. The wurtzite-structured nanoribbons have a uniform rectangular cross section and grow along the [120] crystallographic direction. They are enclosed by small indice surfaces and have a highly perfect crystalline interior, free of extended defects. Luminescence peaks assigned to free and bound excitons were observed from these nanoribbons at low temperatures. In addition, a surface related luminescence band was also identified, showing that the proximity of unpassivated surfaces does not lead to dissociation of excitons in CdS nanoribbons of high purity and structural quality, even when their thickness is around 20 nm. © 2004 American Institute of Physics. [ABSTRACT FROM AUTHOR]

Published
2004
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37. Results from the ARGO-YBJ test experiment ARGO-YBJ collaboration

Author

Bacci C, Bao KZ, Barone F, Bartoli B, Bernardini P, BUSSINO, Severino Angelo Maria, Calloni E, Cao BY, Cardarelli R, Catalanotti S, Cavaliere S, Cesaroni F, Creti P, Danzengluobu, Piazzoli BD, De Vincenzi M, Di Girolamo T, Di Sciascio G, Feng ZY, Fu Y, Gao XY, Geng QX, Guo HW, He HH, He M, Huang Q, Iacovacci M, Iucci N, Jai HY, Jing CL, Kong FM, Kuang HH, Labaciren, Li B, Li JY, Liu ZQ, Lu H, Ma XH, Mancarella G, MARI, Stefano Maria, Marsella G, Martello D, Meng XR, Milano L, Mu J, Panareo M, Peng ZR, Pistilli P, Santonico R, Shen PR, Stanescu C, Sun LR, Sun SC, Surdo A, Tan YH, Vernetto S, Wang CR, Wang H, Wang HY, Wei YN, Yang HT, Yao QK, Yu GC, Yue XD, Yuan AF, Zha M, Zhang HM, Zhang JL, Zhang NJ, Zhang XY, Zhaxisangzhu, Zhaxiciren, Zhu QQ, C., Bacci, K. Z., Bao, F., Barone, Bartoli, Bruno, P., Bernardini, S., Bussino, Calloni, Enrico, B. Y., Cao, R., Cardarelli, Catalanotti, Sergio, S., Cavaliere, F., Cesaroni, P., Creti, Danzengluobu, D'ETTORRE PIAZZOLI, Benedetto, M. D., Vincenzi, DI GIROLAMO, Tristano, G. D., Sciascio, Z. Y., Feng, Y., Fu, X. Y., Gao, Q. X., Geng, H. W., Guo, H. H., He, M., He, Q., Huang, Iacovacci, Michele, N., Iucci, H. Y., Jai, C. L., Jing, F. M., Kong, H. H., Kuang, Labaciren, B., Li, J. Y., Li, Z. Q., Liu, H., Lu, X. H., Ma, G., Mancarella, S. M., Mari, G., Marsella, D., Martello, X. R., Meng, L., Milano, J., Mu, M., Panareo, Z. R., Peng, P., Pistilli, R., Santonico, P. R., Shen, C., Stanescu, L. R., Sun, S. C., Sun, A., Surdo, Y. H., Tan, S., Vernetto, C. R., Wang, H., Wang, H. Y., Wang, Y. N., Wei, H. T., Yang, Q. K., Yao, G. C., Yu, X. D., Yue, A. F., Yuan, M., Zha, H. M., Zhang, J. L., Zhang, N. J., Zhang, X. Y., Zhang, Zhaxisangzhu, Zhaxiciren, Q. Q., Zhu, Bacci, C, Bao, Kz, Barone, F, Bartoli, B, Bernardini, P, Bussino, Severino Angelo Maria, Calloni, E, Cao, By, Cardarelli, R, Catalanotti, S, Cavaliere, S, Cesaroni, F, Creti, P, Piazzoli, Bd, De Vincenzi, M, Di Girolamo, T, Di Sciascio, G, Feng, Zy, Fu, Y, Gao, Xy, Geng, Qx, Guo, Hw, He, Hh, He, M, Huang, Q, Iacovacci, M, Iucci, N, Jai, Hy, Jing, Cl, Kong, Fm, Kuang, Hh, Li, B, Li, Jy, Liu, Zq, Lu, H, Ma, Xh, Mancarella, G, Mari, Stefano Maria, Marsella, G, Martello, D, Meng, Xr, Milano, L, Mu, J, Panareo, M, Peng, Zr, Pistilli, P, Santonico, R, Shen, Pr, Stanescu, C, Sun, Lr, Sun, Sc, Surdo, A, Tan, Yh, Vernetto, S, Wang, Cr, Wang, H, Wang, Hy, Wei, Yn, Yang, Ht, Yao, Qk, Yu, Gc, Yue, Xd, Yuan, Af, Zha, M, Zhang, Hm, Zhang, Jl, Zhang, Nj, Zhang, Xy, and Zhu, Qq

Subjects
AIR SHOWERS, RPCS
Abstract

A resistive plate counters (RPCs) carpet of similar to50 m(2) has been put in operation in the Yangbajing Laboratory (Tibet, P.R. China) at 4300 in a.s.l., in order to study the RPCs performance at high altitude and the detector capability of imaging the EAS disc. This test has been performed in view of an enlarged use of RPCs for the ARGO-YBJ experiment. This experiment will be devoted to a wide range of fundamental issues in cosmic rays and astroparticle physics, including in particular gamma-ray astronomy and gamma-ray bursts physics at energies greater than or equal to 100 GeV. In this paper we present and discuss the procedures adopted to calibrate the detector and reconstruct the shower direction. Results concerning many shower features as the angular distribution, the density spectrum, the time profile of the shower front, are found well consistent with the expectation. (C) 2002 Elsevier Science B.V. All rights reserved.

Published
2002

38. Study on the performance of YBJ 50m(2) RPC carpet

Author

He HH, Bacci C, Bao KZ, Barone F, Bartoli B, Bernardini P, BUSSINO, Severino Angelo Maria, Calloni E, Cardarelli R, Catalanotti S, Cavaliere S, Cesaroni F, Cha M, Creti P, Danzengluobu, Piazzoli BD, de Vincenzi M, di Girolamo T, di Sciascio G, Feng ZY, Fu Y, Gao XY, Geng QX, Guo HW, He M, Huang Q, Iacovacci M, Iucci N, Jia HY, Jing CL, Kong FM, Kuang HH, Labaciren, Li JY, Liu CQ, Lu H, Ma XH, Mancarella G, Marsella G, Martello D, Meng XR, Milano L, Mu J, Peng ZR, Pistilli P, Qu RF, Santonico R, Sbarra C, Shen PR, Stanescu C, Sun LR, Sun SC, Surdo A, Tan YH, Vernetto S, Wang CR, Wang H, Wang HY, Wei YN, Yang HT, Yao QK, Yu GC, Yue XD, Yuan AF, Zhang HM, Zhang JL, Zhang NJ, Zhang XY, Zhaxisangzhu, Zhaxiciren, Zhu QQ, MARI, Stefano Maria, H. H., He, C., Bacci, K. Z., Bao, F., Barone, B., Bartoli, P., Bernardini, S., Bussino, E., Calloni, R., Cardarelli, S., Catalanotti, S., Cavaliere, F., Cesaroni, M., Cha, P., Creti, Danzengluobu, B. D., Piazzoli, M. d., Vincenzi, T. d., Girolamo, G. d., Sciascio, Z. Y., Feng, Y., Fu, X. Y., Gao, Q. X., Geng, H. W., Guo, M., He, Q., Huang, M., Iacovacci, N., Iucci, H. Y., Jia, C. L., Jing, F. M., Kong, H. H., Kuang, Labaciren, J. Y., Li, C. Q., Liu, H., Lu, X. H., Ma, Mancarella, Giovanni, S. M., Mari, Marsella, Giovanni, Martello, Daniele, X. R., Meng, L., Milano, J., Mu, Z. R., Peng, P., Pistilli, R. F., Qu, R., Santonico, C., Sbarra, P. R., Shen, C., Stanescu, L. R., Sun, S. C., Sun, A., Surdo, Y. H., Tan, S., Vernetto, C. R., Wang, H., Wang, H. Y., Wang, Y. N., Wei, H. T., Yang, Q. K., Yao, G. C., Yu, X. D., Yue, A. F., Yuan, H. M., Zhang, J. L., Zhang, N. J., Zhang, X. Y., Zhang, Zhaxisangzhu, Zhaxiciren, Q. Q., Zhu, Bartoli, Bruno, Calloni, Enrico, Catalanotti, Sergio, D'ETTORRE PIAZZOLI, Benedetto, DI GIROLAMO, Tristano, Iacovacci, Michele, G., Mancarella, G., Marsella, D., Martello, He, Hh, Bacci, C, Bao, Kz, Barone, F, Bartoli, B, Bernardini, P, Bussino, Severino Angelo Maria, Calloni, E, Cardarelli, R, Catalanotti, S, Cavaliere, S, Cesaroni, F, Cha, M, Creti, P, Piazzoli, Bd, de Vincenzi, M, di Girolamo, T, di Sciascio, G, Feng, Zy, Fu, Y, Gao, Xy, Geng, Qx, Guo, Hw, He, M, Huang, Q, Iacovacci, M, Iucci, N, Jia, Hy, Jing, Cl, Kong, Fm, Kuang, Hh, Li, Jy, Liu, Cq, Lu, H, Ma, Xh, Mancarella, G, Mari, Stefano Maria, Marsella, G, Martello, D, Meng, Xr, Milano, L, Mu, J, Peng, Zr, Pistilli, P, Qu, Rf, Santonico, R, Sbarra, C, Shen, Pr, Stanescu, C, Sun, Lr, Sun, Sc, Surdo, A, Tan, Yh, Vernetto, S, Wang, Cr, Wang, H, Wang, Hy, Wei, Yn, Yang, Ht, Yao, Qk, Yu, Gc, Yue, Xd, Yuan, Af, Zhang, Hm, Zhang, Jl, Zhang, Nj, Zhang, Xy, Zhu, Qq, Bussino, S, DE VINCENZI, M, DI GIROLAMO, T, DI SCIASCIO, G, and Mari, Sm

Abstract

The characteristics of a 50m(2) RPC carpet(prototype of YBJ-ARGO experiment)was analyzed using its test run data. A correction method of the systematic time error is suggested, and nonuniform azimuthal angle distribution possibly due to direction reconstruction error on an asymmetric carpet is reported.

Published
2001

39. The ARGO-YBJ detector and high energy GRBs

Author

J. Mu, H.H. He, A. Cavaliere, R. Santonico, J. Su, Q. X. Geng, M. Vietri, A. Surdo, H.H. Kuang, S. M. Mari, N. Iucci, Jy Li, K.Z. Bao, M. Parisi, F Cesaroni, T. Di Girolamo, Paolo Padovani, G. Marsella, Cristian Stanescu, H.T. Yang, D. Martello, B. Bartoli, Z.Q. Liu, L.R. Sun, S.C. Sun, G.C. Yu, H.Y. Jai, Y.N. Wei, Paolo Bernardini, B.Y. Cao, S. Vernetto, L. Milano, P. Pistilli, H. M. Zhang, M. Oliviero, X.D. Yue, Denis Bastieri, M. Iacovacci, Roberta Sparvoli, Labaciren, N.J. Zhang, Hong-peng Lu, G. Mancarella, Enrico Calloni, M. Panareo, Zhaxiciren, Severino Angelo Maria Bussino, M. He, Q. Huang, P. Creti, A Morselli, C Sbarra, T.J. Zhang, P. R. Shen, C.R. Wang, X. Y. Gao, Q. Q. Zhu, X. R. Meng, G. Pellizzoni, Q.K. Yao, F.M. Kong, Dongming Mei, Danzengluobu, G. Sartori, Z.Y. Feng, BD Piazzoli, Roberto Cardarelli, Huaguang Wang, Fabrizio Barone, Y. H. Tan, J.L. Zhang, X. Y. Zhang, G. Severino, A. F. Yuan, Zhaxisangzhu, Z.R. Peng, H.Y. Wang, B. Li, Xh Ma, C. Bacci, Y Fu, G. Di Sciascio, M. De Vincenzi, S. Catalanotti, Hw Guo, R. Buonomo, C., Bacci, K. Z., Bao, F., Barone, Bartoli, Bruno, D., Bastieri, P., Bernardini, R., Buonomo, S., Bussino, Calloni, Enrico, B. Y., Cao, R., Cardarelli, Catalanotti, Sergio, A., Cavaliere, F., Cesaroni, P., Creti, Danzengluobu, D'ETTORRE PIAZZOLI, Benedetto, M., De Vincenzi, DI GIROLAMO, Tristano, G., Di Sciascio, Z. Y., Feng, Y., Fu, X. Y., Gao, Q. X., Geng, H. W., Guo, H. H., He, M., He, Q., Huang, Iacovacci, Michele, N., Iucci, H. Y., Jai, F. M., Kong, H. H., Kuang, Labaciren, B., Li, J. Y., Li, Z. Q., Liu, H., Lu, X. H., Ma, G., Mancarella, S. M., Mari, G., Marsella, D., Martello, D. M., Mei, X. R., Meng, Milano, Leopoldo, A., Morselli, J., Mu, M., Oliviero, P., Padovani, M., Panareo, M., Parisi, G., Pellizzoni, Z. R., Peng, P., Pistilli, R., Santonico, G., Sartori, C., Sbarra, G., Severino, P. R., Shen, R., Sparvoli, C., Stanescu, J., Su, L. R., Sun, S. C., Sun, A., Surdo, Y. H., Tan, S., Vernetto, M., Vietri, C. R., Wang, H., Wang, H. Y., Wang, Y. N., Wei, H. T., Yang, Q. K., Yao, G. C., Yu, X. D., Yue, A. F., Yuan, H. M., Zhang, J. L., Zhang, N. J., Zhang, T. J., Zhang, X. Y., Zhang, Zhaxisangzhu, Zhaxiciren, Q. Q., Zhu, B., Bartoli, E., Calloni, S., Catalanotti, B. D., Piazzoli, M. D., Vincenzi, T. D., Girolamo, G. D., Sciascio, M., Iacovacci, Mancarella, Giovanni, Marsella, Giovanni, Martello, Daniele, L., Milano, Panareo, Marco, Bacci, C., Bao, K. Z., Barone, F., Bartoli, B., Bastieri, D., Bernardini, P., Buonomo, R., Bussino, S., Calloni, E., Cao, B. Y., Cardarelli, R., Catalanotti, S., Cavaliere, A., Cesaroni, F., Creti, P., D'ETTORRE PIAZZOLI, B., DE VINCENZI, M., DI GIROLAMO, T., DI SCIASCIO, G., Feng, Z. Y., Fu, Y., Gao, X. Y., Geng, Q. X., Guo, H. W., He, M., Huang, Q., Iacovacci, M., Iucci, N., Jai, H. Y., Kong, F. M., Kuang, H. H., Li, B., Liu, Z. Q., Lu, H., Mancarella, G., Mari, S. M., Mei, D. M., Meng, X. R., Milano, L., Morselli, A., Mu, J., Oliviero, M., Padovani, P., Parisi, M., Pellizzoni, G., Peng, Z. R., Pistilli, P., Santonico, R., Sartori, G., Sbarra, C., Severino, G., Shen, P. R., Sparvoli, R., Stanescu, C., Su, J., Sun, L. R., Sun, S. C., Surdo, A., Tan, Y. H., Vernetto, S., Vietri, M., Wang, C. R., Wang, H., Wang, H. Y., Wei, Y. N., Yang, H. T., Yao, Q. K., Yue, X. D., Yuan, A. F., Zhang, H. M., Zhang, J. L., Zhang, N. J., Zhang, T. J., Zhang, X. Y., and Zhu, Q. Q.

Subjects
Astroparticle physics, Physics, Range (particle radiation), Physics::Instrumentation and Detectors, Large detector systems for particle and astroparticle physics, Astrophysics::High Energy Astrophysical Phenomena, Detector, Astrophysics::Instrumentation and Methods for Astrophysics, General Physics and Astronomy, Astronomy, Cosmic ray, Astrophysics, Radiation, gamma-ray: bursts, gamma-ray detector, Gamma Ray Burst, Observatory, Gamma-ray burst, Argo
Abstract

ARGO-YBJ (Astrophysical Radiation with Ground-based Observatory at YangBaJing) is a detector optimized to study small size air showers. It consists of a layer of Resistive Plate Counters (RPCs) covering an area of similar to 6500 m(2) and will be located in the Yangbajing Laboratory (Tibet, China) at 4300 m a.s.l. ARGO-YBJ will be devoted to a wide range of fundamental issues in cosmic rays and astroparticle physics, including in particular gamma-ray astronomy and gamma-ray bursts physics in the range 10 GeV divided by 500 TeV. The sensitivity of ARGO-YBJ to detect high energy GRBs is presented.

Published
1999

40. The Super Fixed Target beauty facility at the SSC

Author

N.S. Angelov, Martin M. Block, C. Kourkounelis, A.G. Asmolov, Nikolai Chernov, A. Sadovsky, V.M. Grebeniuk, C. Wei, T. Gabriel, S. Katsenevas, Gennady Ososkov, Gianluca Introzzi, A. R. Erwin, S.V. Borodin, R.A. Carrigan, V.I. Moroz, P.L. McGaughey, R. Childers, Irakli Minashvili, N. Yao, M.S. Nioradze, B. Gororkov, J. Trischuk, Victor Ivanov, H.R. Brashear, A. Manousakis-Kaftsikakis, A. McManus, N.J. Zhang, S. Peggs, G. Voulgaris, Y. Gotra, O. Palamara, L. Spiegel, S.M. Korenchenko, A.T. Filippov, B.T. Zou, A. Wintenberg, P. Creti, S. Conetti, M. Haire, C. Darden, M. Cooper, M. He, V.G. Timofeev, P.O. Masur, G. Boca, K. S. Nelson, B.A. Khachaturov, N.A. Russakovich, G. Mo, D.M. Khazins, Z.R. Salukvadze, S.A. Zaporozhets, K. Clark, D. Christian, I. Churin, L. K. Resvanis, D.M. Kaplan, S.N. Maliukov, V.I. Prihod'ko, L. Antoniazzi, J. Rhoades, L.R. Fortney, R. P. Smith, M. Cambiaghi, N. Ericison, D.Q. Djincharadze, David B. Cline, W. Selove, C.R. Wang, S. Pruss, Vladimir Samsonov, M. Recagni, A. Boden, S.E. Anassontzis, M. Panareo, N.V. Maksimenko, Bradley Cox, T. Toohig, C.R. Sun, I.E. Chirikov-Zorin, Leander Litov, George Kalkanis, F. Graucagnolo, M.A. Thomspson, H.C. Ballagh, A. Kurilin, W. Kononenko, K. Lau, J. Budagov, P. Ioannu, V.N. Pozdnjakov, G. Corti, N.O. Poroshin, P. Pistilli, J.I. Davidov, V.B. Flyagin, G. Liguori, G.G. Takhtamyshev, L. Sandor, Edoardo Gorini, A.G. Volodko, T. Moore, H. H. Bingham, G.A. Chlachidze, G.S. Pogosian, James Russ, V.N. Ryzkov, J. Lys, G. Sokol, V. V. Glagolev, S. Tokar, T. Premantiotis, V.H. Dodohov, A.M. Dvornik, B. Sitar, James A. Ellison, B. Newberger, Catherine A. Dukes, E. Kladiva, T.Y. Chen, K. Kuzminski, Michael Wayne Arenton, S.I. Merzliakov, L.N. Shtarkov, Z.L. Cao, Sergio P Ratti, F. Avignone, F. Palama, V.S. Rumiantsev, J. Nemchik, C. T. Murphy, S. Spentzouris, Alexander M. Taratin, S.L. Bagdasarov, A. Khanzadeev, E.N. Tsyganov, M. Jenkins, W. Kowald, P. Torre, S. E., Anassontzi, N. S., Angelov, L., Antoniazzi, M., Arenton, A. G., Asmolov, F., Avignone, S. L., Bagdasarov, H. C., Ballagh, H., Bingham, M., Block, G., Boca, A., Boden, S. V., Borodin, H., Brashear, Budagov, Y. U. A., M., Cambiaghi, Z. L., Cao, R., Carrigan, T. Y., Chen, N. I., Chernov, R., Childer, I. E., CHIRIKOV ZORIN, G. A., Chlachidze, D., Christian, I. N., Churin, K., Clark, D., Cline, S., Conetti, M., Cooper, G., Corti, B., Cox, P., Creti, C., Darden, Davydov, Y. U. I., D. Q., Dzhincharadze, Dodokhov, V. K. H., C., Duke, A. M., Dvornik, J., Ellison, N., Ericson, A., Erwin, A. T., Filippov, V. B., Flyagin, L., Fortney, T., Gabriel, V. V., Glagolev, Gorini, Edoardo, Gotra, Y. U. N., B., Govorkov, F., Grancagnolo, V. M., Grebenyuk, M., Haire, M., He, G., Introzzi, P., Ioannu, V. V., Ivanov, M., Jenkin, G., Kalkani, D., Kaplan, S., Katsaneva, B. A., Khachaturov, A., Khanzadeev, D. M., Khazin, E., Kladiva, W., Kononenko, S. M., Korenchenko, C., Kourkoumeli, W., Kowald, A. S., Kurilin, K., Kuzminski, K., Lau, G., Liguori, L., Litov, J., Ly, N. V., Maksimenko, S. N., Malyukov, A., MANOUSAKIS KATSIKAKIS, P. O., Mazur, P. L., Mcgaughey, A., Mcmanu, S. I., Merzlyakov, I. A., Minashvili, G., Mo, T., Moore, V. I., Moroz, C. T., Murphy, K., Nelson, J., Nemchik, B., Newberger, M. S., Nioradze, G. A., Ososkov, F., Palam, O., Palamara, Panareo, Marco, S., Pegg, P., Pistilli, G. S., Pogosian, N. O., Poroshin, V. N., Pozdnyakov, T., Premantioti, V. I., Prikhodko, S., Pru, S., Ratti, M., Recagni, L. K., Resvani, J., Rhoade, V. S., Rumyantsev, J., Ru, N. A., Rusakovich, V. N., Ryzkov, A. B., Sadovsky, Z. R., Salukvadze, V., Samsonov, L., Sandor, W., Selove, L. N., Shtarkov, B., Sitar, R. P., Smith, G., Sokol, S., Spentzouri, L., Spiegel, C. R., Sun, G., Takhtamyshev, A. M., Taratin, M. A., Thompson, V. G., Timofeev, S., Tokar, T., Toohig, P., Torre, J., Trischuk, E. N., Tsyganov, A. G., Volodko, G., Voulgari, C. R., Wang, A., Wintenberg, C., Wei, N., Yao, S. A., Zaporozhet, N. J., Zhang, and B. T., Zou

Subjects
Physics, Quark, Nuclear and High Energy Physics, Particle physics, Spectrometer, Hadron, Detector, Particle accelerator, Atomic and Molecular Physics, and Optics, law.invention, Standard Model, Superconducting Super Collider, Nuclear physics, law, CP violation, High Energy Physics::Experiment
Abstract

The rationale for pursuing beauty physics at the SSC in a fixed target configuration is described. The increased beauty production cross section at the SSC, combined with high interaction rate capability of the proposed detector, results in 10 10–11 produced BB events per year. The long decay length of the B hadrons (≌10 cm) allows direct observation of B decays in the high resolution silicon microstrip vertex detector. To optimize the operation of the proposed beauty spectrometer and the SSC, parasitic extraction of attendant or artificially generated large amplitude protons using crystal channeling is proposed and explored. The large sample of fully reconstructed B events allows detailed studies various CP violating decays with requisite statistics to confront the standard model. The CP physics potentials of the proposed experiment is evaluated and compared with alternative approaches, such as asymmetric e + e − B Factories and specialized hadron colliders.

Published
1992

41. 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

42. 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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