The Dilepton Q_T Spectrum in Transversely Polarized Drell-Yan Process in QCD

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概要

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• We discuss the transverse momentum Q_T distribution of Drell-Yan pair, produced in collisions of transversely polarized protons. We calculate the transversely polarized Drell-Yan cross section up to O(α_s) in the dimensional regularization, which gives QCD prediction at large Q_T. For small Q_T, we include all-orders resummation of large logarithms due to emission of soft gluons up to next-to-leading logarithmic accuracy. At intermediate Q_T, the resummation formula is matched with the fixed-order α_s perturbative results in a systematic way, and we derive the cross section with uniform accuracy over the entire range of Q_T.

• 理論物理学刊行会の論文
• 2006-03-25

著者

• TANAKA Kazuhiro

  Department of Neurosurgery, Kobe University Graduate School of Medicine

• 田中 和廣

  順天堂大医

• KAWAMURA Hiroyuki

  Radiation Laboratory, RIKEN

• KODAIRA Jiro

  Theory Division, KEK

• SHIMIZU Hirotaka

  Department of Physics, Hiroshima University

• KODAIRA Jiro

  Dept. of Physics, Hiroshima University

• Shimizu Hirotaka

  Department Of Electrical System Engineering Polytechnic University

• Shimizu Hirotaka

  Department Of Physics Hiroshima University

• Kodaira J

  Theory Division Kek

• Kodaira Jiro

  Department Of Physics Hiroshima University

• Kawamura H

  Radiation Laboratory Riken

• Tanaka Kazuhiro

  Department Of Neurosurgery Kobe University Graduate School Of Medicine

• Tanaka Kazuhiro

  Department Of Advanced Materials Science And Engineering Faculty Of Engineering Yamaguchi University

• KAWAMURA Hiroyuki

  Department of Fundamental Sciences FIHS, Kyoto University

• SHIMIZU Hirotaka

  Department of Electrical Engineering, Polytechnic University

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