E. Braaten

Publications (4)0 Total impact

• Source

  Available from: ArXiv

  Article: Parton Model Calculation of Inclusive Charm Production by a Low-energy Antiproton Beam

  E. Braaten, P. Artoisenet
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  ABSTRACT: The cross section for inclusive charm production by a low-energy antiproton beam is calculated using the parton model and next-to-leading order perturbative QCD. For an antiproton beam with a momentum of 15 GeV, the charm cross section at next-to-leading order in the QCD coupling constant changes by more than an order of magnitude as the charm quark mass is varied from 1.3 to 1.7 GeV. The variations can be reduced by demanding that the same value of the charm quark mass give the measured charm cross sections for fixed-target experiments with a proton beam. The resulting estimate for the charm cross section from a low-energy antiproton beam is large enough to allow the study of charm meson mixing. Comment: 9 pages, 4 figures
  03/2009;
• Source

  Available from: J. Soto

  Article: Heavy Quarkonium Physics

  N. Brambilla, M Krämer, R. Mussa, A. Vairo, G. Bali, G. T. Bodwin, E. Braaten, E. Eichten, S. Eidelman, S. Godfrey, [......], Yu. Sumino, T. Teubner, J Tseng, R. Vogt, P Wang, B. Yabsley, C. Z. Yuan, F. Zantow, Z G Zhao, A Zieminski
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  ABSTRACT: This report is the result of the collaboration and research effort of the Quarkonium Working Group over the last three years. It provides a comprehensive overview of the state of the art in heavy-quarkonium theory and experiment, covering quarkonium spectroscopy, decay, and production, the determination of QCD parameters from quarkonium observables, quarkonia in media, and the effects on quarkonia of physics beyond the Standard Model. An introduction to common theoretical and experimental tools is included. Future opportunities for research in quarkonium physics are also discussed. Comment: xviii + 487 pages, 260 figures. The full text is also available at the Quarkonium Working Group web page: http://www.qwg.to.infn.it
  12/2004;
• Source

  Available from: Michael Procario

  Article: B Physics at the Tevatron: Run II and Beyond

  K. Anikeev, D. Atwood, F Azfar, S Bailey, C. W. Bauer, W Bell, G. Bodwin, E. Braaten, G. Burdman, J N Butler, [......], R Van Kooten, A. Vasiliev, M. Voloshin, J C Wang, A. B. Wicklund, F. Wurthwein, N Xuan, J. Yarba, K Yip, A Zieminski
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  ABSTRACT: This report provides a comprehensive overview of the prospects for B physics at the Tevatron. The work was carried out during a series of workshops starting in September 1999. There were four working groups: 1) CP Violation, 2) Rare and Semileptonic Decays, 3) Mixing and Lifetimes, 4) Production, Fragmentation and Spectroscopy. The report also includes introductory chapters on theoretical and experimental tools emphasizing aspects of B physics specific to hadron colliders, as well as overviews of the CDF, D0, and BTeV detectors, and a Summary. Comment: 583 pages. Further information on the workshops, including transparencies, can be found at the workshop's homepage: http://www-theory.lbl.gov/Brun2/. The report is also available in 2-up http://www-theory.lbl.gov/Brun2/report/report2.ps.gz or chapter-by-chapter http://www-theory.lbl.gov/Brun2/report/
  01/2002;
• Source

  Available from: psu.edu

  Article: Production of Heavy Quarkonium in High Energy Colliders

  E. Braaten, S. Fleming, T. C. Yuan
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  ABSTRACT: Recent data from the Tevatron has revealed that the production rate of prompt charmonium at large transverse momentum is orders of magnitude larger than the best theoretical predictions of a few years ago. These surprising results can be understood by taking into account two recent developments that have revolutionized the theoretical description of heavy quarkonium production. The first is the realization that fragmentation must dominate at large transverse momentum, which implies that most charmonium in this kinematic region is produced by the hadronization of individual high-$p_T$ partons. The second is the development of a factorization formalism for quarkonium production based on nonrelativistic QCD that allows the formation of charmonium from color-octet $c \bar c$ pairs to be treated systematically. This review summarizes these theoretical developments and their implications for quarkonium production in high energy colliders. Comment: 45 pages of text and 4 figures. Typset using LaTex. To be published in Annual Review of Nuclear and Particle Science. A postscript version of the file is available at: http://phenom.physics.wisc.edu:80/pub/preprints/
  02/1996;