33 research outputs found

    Recoil and Threshold Corrections in Short-distance Cross Sections

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    We identify and resum corrections associated with the kinematic recoil of the hard scattering against soft-gluon emission in single-particle inclusive cross sections. The method avoids double counting and conserves the flow of partonic energy. It reproduces threshold resummation for high-p_T single-particle cross sections, when recoil is neglected, and Q_T-resummation at low Q_T, when higher-order threshold logarithms are suppressed. We exhibit explicit resummed cross sections, accurate to next-to-leading logarithm, for electroweak annihilation and prompt photon inclusive cross sections.Comment: minor modifications of the text, some references added. 51 pages, LaTeX, 6 figures as eps file

    Let’s Drink to Being Socially Active: Family Characteristics, Social Participation, and Alcohol Abuse across Mid- and Later-life

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    Researchers and practitioners often extol the health benefits of social relationships and social participation for older adults. Yet they often ignore how these same bonds and activities may contribute to negative health behaviors. Using data from the Wisconsin Longitudinal Study (16,065 observations from 7,007 respondents), we examined how family characteristics, family history, and social participation predicted three measures of alcohol abuse between ages 53 and 71. Results indicate that, generally, greater social participation is associated with increased drinking days per month. We also found that religious participation and having ever lived with an alcoholic are each associated with reporting possible alcohol dependence but not with alcohol consumption itself. Lastly, we identified gendered associations between marital dissolution and drinking behavior. These findings contextualize the increasing rates of alcohol abuse among older adults by emphasizing the possible negative consequences of “linked lives” on health via relationship stress and group norms
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