254,758 research outputs found

    Measurement of the ratio of prompt χ c to J / ψ production in pp collisions at √s = 7 TeV

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    The prompt production of charmonium χ c and J / ψ states is studied in proton-proton collisions at a centre-of-mass energy of √s = 7 TeV at the Large Hadron Collider. The χ c and J / ψ mesons are identified through their decays χ c → J / ψ γ and J / ψ → μ + μ - using 36 pb - 1 of data collected by the LHCb detector in 2010. The ratio of the prompt production cross-sections for χ c and J / ψ, σ (χ c → J / ψ γ) / σ (J / ψ), is determined as a function of the J / ψ transverse momentum in the range 2 < p T J / ψ < 15 GeV / c. The results are in excellent agreement with next-to-leading order non-relativistic expectations and show a significant discrepancy compared with the colour singlet model prediction at leading order, especially in the low p T J / ψ region

    Wang Shuo and the commercialisation of contemporary Chinese culture

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    This thesis examines the commercialisation of Chinese culture that has taken place over the past twenty years in mainland China. It explores the contribution of Wang Shuo, a cultural figure who straddles different fields of culture, moving from literature to the ultimate mass culture medium of television, this study plots Wang Shuo' s development from educational failure, to business failure, to fiction writer, film &amp; TV editor, film director and cultural critic and analyst. His stories, films, TV series and articles have caused shock-waves throughout national cultural circles as he has transformed the terms of the debate from academic discourse to a validation of the role of the market in the culture field. Although Wang Shuo has not been labelled as a dissident, his approach to the culture market has had a more subversive effect on official ideology that those overt dissidents who have had to live in exile or have been imprisoned. He has utilised the language of official ideology to satirise the authorities, turning the ideology and its supporters into figures of fun. Yet his own goals have been strictly personal and economic ones. The authorities recognize the value of Wang Shuo's work in the cultural market but at the same time distrust his works and place him under strict censorship. Examining the way Wang Shuo and people surround him have succeeded in different fields of cultural achievement is a mirror to understanding the process of the transformation of contemporary Chinese culture from a socialist state-controlled culture to a market-oriented mass culture industry

    Wang Li (1900-1986)

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    Wang Li (Wang Liaoyi) was one of the three most prominent linguists in China in the 20th century. He was born August 10, 1900, in what is now Bobai County of the Guangxi Zhuang Autonomous Area

    Wang Meng and contemporary Chinese literature: the vicissitudes of a committed writer

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    This thesis examines the way Wang Meng has developed as a writer from the 1950s to the 1990s in the context of New China's political and literary background. It looks at the compromises he was forced to make between his political beliefs in the Communist Party and his chosen role as a professional writer. After his disastrous early foray into what was deemed to be unacceptable political criticism with The Young Newcomer in the Organisation Department in the 1950s, when the opportunity came to start publishing again in the late 1970s he was boldly innovative in style, helping to transform New Period literature, but conservative in content, sticking to politically acceptable topics. It was only with Hard Porridge in 1989 that he ventured again, and very successfully, into political comment. There is no outstanding leading writer in contemporary China, but Wang Meng is a leading contender for the title

    Study of B c + → J / ψ D s + Bc+J/ψDs+ {\mathrm{B}}_{\mathrm{c}}^{+}\to \mathrm{J}/\psi {\mathrm{D}}_{\mathrm{s}}^{+} and B c + → J / ψ D s ∗ + Bc+J/ψDs+ {\mathrm{B}}_{\mathrm{c}}^{+}\to \mathrm{J}/\psi {\mathrm{D}}_{\mathrm{s}}^{\ast +} decays in pp collisions at s s \sqrt{\mathrm{s}} = 13 TeV with the ATLAS detector

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    Abstract A study of B c + → J / ψ D s + Bc+J/ψDs+ {B}_c^{+}\to J/\psi {D}_s^{+} and B c + → J / ψ D s ∗ + Bc+J/ψDs+ {B}_c^{+}\to J/\psi {D}_s^{\ast +} decays using 139 fb−1 of integrated luminosity collected with the ATLAS detector from s s \sqrt{s} = 13 TeV pp collisions at the LHC is presented. The ratios of the branching fractions of the two decays to the branching fraction of the B c + Bc+ {B}_c^{+} → J/ψπ+ decay are measured: B B c + → J / ψ D s + / B B c + → J / ψπ + B(Bc+J/ψDs+)/B(Bc+J/ψπ+) \mathcal{B}\left({B}_c^{+}\to J/\psi {D}_s^{+}\right)/\mathcal{B}\left({B}_c^{+}\to J/{\psi \pi}^{+}\right) = 2.76 ± 0.47 and B B c + → J / ψ D s ∗ + / B B c + → J / ψπ + B(Bc+J/ψDs+)/B(Bc+J/ψπ+) \mathcal{B}\left({B}_c^{+}\to J/\psi {D}_s^{\ast +}\right)/\mathcal{B}\left({B}_c^{+}\to J/{\psi \pi}^{+}\right) = 5.33 ± 0.96. The ratio of the branching fractions of the two decays is found to be B B c + → J / ψ D s ∗ + / B B c + → J / ψ D s ∗ + B(Bc+J/ψDs+)/B(Bc+J/ψDs+) \mathcal{B}\left({B}_c^{+}\to J/\psi {D}_s^{\ast +}\right)/\mathcal{B}\left({B}_c^{+}\to J/\psi {D}_s^{\ast +}\right) = 1.93 ± 0.26. For the B c + → J / ψ D s ∗ + Bc+J/ψDs+ {B}_c^{+}\to J/\psi {D}_s^{\ast +} decay, the transverse polarization fraction, Γ±±/Γ, is measured to be 0.70 ± 0.11. The reported uncertainties include both the statistical and systematic components added in quadrature. The precision of the measurements exceeds that in all previous studies of these decays. These results supersede those obtained in the earlier ATLAS study of the same decays with s s \sqrt{s} = 7 and 8 TeV pp collision data. A comparison with available theoretical predictions for the measured quantities is presented

    Evidence for the decay B0→J/ψω and measurement of the relative branching fractions of meson decays to J/ψη and J/ψη′

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    First evidence of the B 0 → J / ψ ω decay is found and the B s 0 → J / ψ η and B s 0 → J / ψ η ′ decays are studied using a dataset corresponding to an integrated luminosity of 1.0 fb -1 collected by the LHCb experiment in proton-proton collisions at a centre-of-mass energy of sqrt(s) = 7 TeV. The branching fractions of these decays are measured relative to that of the B 0 → J / ψ ρ 0 decay:frac(B (B 0 → J / ψ ω), B (B 0 → J / ψ ρ 0)) = 0.89 ± 0.19 (stat) - 0.13 + 0.07 (syst),frac(B (B s 0 → J / ψ η), B (B 0 → J / ψ ρ 0)) = 14.0 ± 1.2 (stat) - 1.5 + 1.1 (syst) - 1.0 + 1.1 (frac(f d, f s)),frac(B (B s 0 → J / ψ η ′), B (B 0 → J / ψ ρ 0)) = 12.7 ± 1.1 (stat) - 1.3 + 0.5 (syst) - 0.9 + 1.0 (frac(f d, f s)), where the last uncertainty is due to the knowledge of f d / f s, the ratio of b-quark hadronization factors that accounts for the different production rate of B 0 and B s 0 mesons. The ratio of the branching fractions of B s 0 → J / ψ η ′ and B s 0 → J / ψ η decays is measured to befrac(B (B s 0 → J / ψ η ′), B (B s 0 → J / ψ η)) = 0.90 ± 0.09 (stat) - 0.02 + 0.06 (syst)

    Letter dated 24 February 1975 from Lorenzo A. Richards and J. Y. Wang

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    Letters exchanged in February 1975 between Lorenzo A. Richards and J. Y. Wang of Milieu Information Service in San Jose, California: (1) Letter dated 24 February 1975 from Lorenzo A. Richards and J. Y. Wang, declining to serve as reviewer; (2) Letter dated 17 February 1975 from J. Y. Wang to Lorenzo A. Richards, returning his manuscript and requesting that he review some chapters in Yang\u27s latest book; (3) Letter dated 13 February 1975 from Lorenzo A. Richards and J. Y. Wang, giving permission to quote Richards\u27 papers and sending a copy of a report; (4) Letter dated 7 February 1975 from J. Y. Wang to Lorenzo A. Richards, asking permission to quote his work for a new book, Instruments for Physical Environmental Measurements, vol. 2, chapter 12Milieu Information Service Serving Man\u27s Total Environment 33 East San Fernando Street San Jose, CA 95113 (408) 287-4071 February 17, 1975 Dr. Lorenzo A. Richards 4455 Fifth Street Riverside, CA. 92501 Dear Dr. Richards: Thank you very much for your letter of February 13 together with the reprints. I have made a xerox copy of the reprints and incorporated your material in both Chapters 12 and 13 of Vol. II. Chapter 12 is on Hydrological Measurements, and 13 - Pedological Measurements. Since both chapters emphasize both liquid and gaseous water, and since you are an expert in these areas, I would like to have you be my reviewer. With your permission I shall send the manuscript of these two cKapters to you. Of course, I shall ^knowledge you when the book is published. A Thank you for your consideration. Sincerely yours, J. Y. Wang Prefessor Milieu Information Service Serving Man\u27s Total Environment 33 East San Fernando Street San Jose, CA 95113 (408) 287-4071 February 7, 1975 Dr. L. A. Richards U.S. Salinity Laboratory Soil and Water Conservation Research Div. Agricultural Research Service U.S. Dept. of Agriculture Riverside, CA. 92502 Dear Dr. Richards: In my forthcoming book on "Instruments for Physical Environmental Measurements," Volume II, Chapter 12, I would like to quote your article which appears on page 142-143, entitled "Physical Condition of Water in Soil." In"METHODS OF SOIL ANALYSIS, Pt.l. A.S.A., 1965. This concerns your thermocouple psychrometer. With your permission, I shall acknowledge you in our publication. Since the above article was published ten years ago, I would of course like to cite an updated publication, if there is any. Should you have an im­proved model, I would like to have the reprints and glossy prints, if possible. Of course I shall send you my manuscript for your approval, if not a direct quotation. Your early reply to this matter will be highly appreciated. Sincerely yours, 0 77 rfU*y^y JV Y7 Wang/ President JYW/afm Milieu 9nfor motion Serviee SERVING MAN\u27S TOTAL ENVIRONMENT 33 East San Fernando Street San Jose, CA 95113 (408) 287-4071 NEW BOOK ANNOUNCEMENT INSTRUMENTS FOR PHYSICAL ENVIRONMENTAL MEASUREMENTS (with special emphasis on atmospheric instruments) J. Y. Wang, Professor of Meterology, San Jose State University This book covers instruments for measuring physical parameters of the atmosphere, hydrosphere and lithosphere; including environmental contaminants. Written as a textbook for the upper div­ision and graduate levels as well as a research-reference on geophysical sciences, it represents an updated treatment of environmental instrumentation. It stresses the background measurements of the geosphere. Part A introduces background knowledge in instrumentation for physical environmental measure­ments; Part B deals with the surface and upper air instruments for atmospheric observation including air and noise pollution measurements; Part C concerns marine and iimnological obser­vation in addition to soil moisture and groundwater as well as water pollution instruments; Part D discusses instruments for measuring pedological and geological parameters; Part E describes such space technology as high altitude aircraft, missile-rockets and satellites; Part F gives a summary of the national and international surveillance and the volume concludes with the future trends of geophysical instrumentation. This book consists of 19 chapters, 67 sections, 155 illustrations, 132 tables and 4 appendices. 15.00PERCOPYPublishingdate:January1,1975Californiaresidentsadd615.00 PER COPY Publishing date: January 1, 1975 California residents add 6 % sales tax TO: Milieu Information Service NOTE: 1.00handling charge on all foreign orders. 33 E. San Fernando St. Prepaid Orders Only San Jose, CA 95113 USA Please send me copies of INSTRUMENTS FOR PHYSICAL ENVIRONMENTAL MEASUREMENTS @ 15.00+65c.(handling/postage)ENCLOSED15.00 + 65c. (handling/postage) ENCLOSED • BILL ME FROM: ADDRESS: TABLE OF CONTENTS (Abridged) INTRODUCTION INSTRUMENTATION IN THE GEOSPHERE Instrument and Instrumentation Measurements in the Geosphere FUNDAMENTAL CONSIDERATIONS DIMENSIONS OF THE GEOSPHERE Atmosphere Hydrosphere Lithosphere ENVIRONMENTAL SIGNALING PHENOMENA Extraterrestrial Signals Atmospheric Signals Hydrospheric Signals Lithospheric Signals REQUIREMENTS AND SPECIFICATIONS Range and Limitation Accuracy and Representativeness Sensitivity and Time Response Stability, Reliability and Ruggedness Portability and Simplicity Cost of Installation and Maintenance ENVIRONMENTAL INFORMATION SYSTEM Environmental Engineering Systems Doppler Systems Static and Dynamic Systems Contacting and Non-Contacting Instrument Systems Eulerian and Lagrangian Systems ATMOSPHERIC INSTRUMENTATION SURFACE AIR MEASUREMENTS Radiometry and Photometry Thermometry Barometry Anemometry Atmometry Hygrometry Nephometry and Hyetometry UPPER AIR INSTRUMENTS Balloon Techniques Ground Platform Techniques Aircraft Techniques Reliability and Representativeness of Aerology AIR QUALITY AND NOISE MEASUREMENTS Classification and Principles Particles and Aerosols Gaseous Chemicals Airborne Microorganisms Atmospheric Ions and Radioactive Fallout Noise HYDROSPHERIC INSTRUMENTATION SURFACE WATER MEASUREMENTS Air-Sea Interaction Studies Lower Atmospheric Probes Surface Water Instruments DEEP OCEAN MEASUREMENTS Contacting Probes Non-contacting Probes WATER QUALITY MEASUREMENTS Physical Quality Chemical Quality Bacteriological Quality -^ HYDROLOGIC MEASUREMENTS Soil Moisture Instruments Lysimeter Techniques Frost Penetration and Groundwater Determinations LITHOSPHERIC INSTRUMENTATION PEDOLOGICAL MEASUREMENTS Thermal Property Determinations Aeration and Compaction Determinations Erosion and Soil Movement Determinations GEOLOGICAL MEASUREMENTS Earth Resources Seismic Instrumentation Geomagnetic Instrumentation Gravity Instrumentation SPACE INSTRUMENTATION UPPER ATMOSPHERIC MEASUREMENTS Rocket Systems High Altitude Airborne Instruments SATELLITE PLATFORMS Historical Overview Earth Satellite Weather Satellite Weather Satellite Instruments Applications SOME BASIC INFORMATION THE WORLD GEOPHYSICAL STATIONS W M O Cooperative Programs N O A A Networks U.S. Geological Survey Stations U.S. Soil Conservation Service Stations DATA ACQUISITION INSTRUMENTATION Types of Instruments Global Communication Systems FUTURE PROSPECTU

    Wang, J. C.

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