Momentum Distribution in the Decay B-->J/psi+X

We combine the NRQCD formalism for the inclusive color singlet and octet production of charmonium states with the parton and the ACCMM model, respectively, and calculate the momentum distribution in the decay B-->J/psi+X. Neglecting the kinematics of soft gluon radiation, we find that the motion of the b quark in the bound state can account, to a large extent, for the observed spectrum. The parton model gives a satisfactory presentation of the data, provided that the heavy quark momentum distribution is taken to be soft. To be explicit, we obtain epsilon_p=O(0.008-0.012) for the parameter of the Peterson et al. distribution function. The ACCMM model can account for the data more accurately. The preferred Fermi momentum p_F=O(0.57 GeV) is in good agreement with recent studies of the heavy quark's kinetic energy.Comment: revised version to be published in Phys. Rev. D; 27 pages, LaTeX, 7 eps figures, uses a4wide.sty, epsfig.sty and amssymb.st

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This issue of Textile Progress reviews the way that fashion retailing has developed as a result of the application of the World Wide Web and information and communications technology (ICT) by fashion-retail companies. The review therefore first considers how fashion retailing has evolved, analysing retail formats, global strategies, emerging and developing economies, and the factors that are threatening and driving growth in the fashion-retail market. The second part of the review considers the emergence of omni-channel retailing, analysing how retail has progressed and developed since the adoption of the Internet and how ICT initiatives such as mobile commerce (m-commerce), digital visualisation online, and in-store and self-service technologies have been proven to support the progression and expansion of fashion retailing. The paper concludes with recommendations on future research opportunities for gaining a better understanding of the impacts of ICT and omni-channel retailing, through which it may be possible to increase and develop knowledge and understanding of the way the sector is developing and provide fresh impetus to an already-innovative and competitive industr

Agricultural Research Bulletins, Nos. 489-521

Volume 34, Bulletins 489-521. (489) Ownership of Iowa's Farmland; (490) Identification and Measurement of Inefficiencies in Leasing Systems; (491) Comparison of Resource Returns of Well-Organized Iowa Farms with Selected Nonfarm Opportunities; (492) Iowa Livestock Producers' Choice of Markets; (493) Methodology of Programming Small Watershed Development; (494) North Central Regional Potassium Studies: I. Field Studies with Alfalfa; (495) Organoleptic, Chemical, Physical and Microscopic Characteristics of Muscles in Eight Beef Carcasses, Differing in Age of Animal, Carcass Grade and Extent of Cooking; (496) Specialization and Pork Production Methods in Relation to Over-All Farm Resource Use and Integration; (497) Maternal Employment, Family Relations and Selected Personality, School-Related and Social-Development Characteristics of Children; (498) Soil Erosion Control in Western Iowa: Progress and Problems; (499) Response of Corn Yields in a Planosol Soil to Surface Drainage, Cropping System and Variable Fertilizer Treatments; (500) Description and Measurement of Rates of Early Mortality in the Pig; (501) Appraisal of the Federal Feed--Grains Programs; (502) Production, Income and Resource Changes from Farm Consolidation; (503) North Central Regional Potassium Studies; (504) Farm Size and Cost Relationships in Relation to Recent Machine Technology; (505) Poultry Supply Functions (The Relation of Technical Change to Output of Eggs, Broilers and Turkeys); (506) Derivation of Hydrographs for Small Watersheds from Measurable Physical Characteristics; (507) Short-Run Corn Supply and Fertilizer Demand Functions Based on Production Functions Derived from Experimental Data: a Static Analysis; (508) Occupational Plans of Iowa Farm Boys; (509) Factors Related to Employment of Wives in a Rural Iowa County; (510) Factors Related to Interreligious Marriages in Iowa, 1953-57; (511) Interregional Competition and Prospective Shifts in the Location of Livestock Slaughter; (512) Survival Rates Among Religiously Homogamous and Interreligious Marriages; (513) Effects of Light and Soil Moisture on Forest Tree Seedling Establishment; (514) Analysis of Direct-Payment Methods for Hogs to Increase Hog Producers' Incomes; (515) Distributed Lag Inventory Analyses; (516) Migration and Adjustment of Farm and Nonfarm Families and Adolescents in Cedar Rapids, Iowa; (517) Beef-Cattle Production Functions in Forage Utilization; (518) Production Functions and Methods of Specifying Optimum Fertilizer Use Under Various Uncertainty Conditions for Hay; (519) Profit-Maximizing Plans for Soil-Conserving Farming in the Spring Valley Creek Watershed in Southwest Iowa; (520) Estimation of Soil Moisture Under Corn; (521) Regional Changes in Grain Production: An Application of Spatial Linear Programming</p