Unravelling Soft Components in the Shape Function for Inclusive B Decays(Particles and Fields)

スポンサーリンク

概要

• 論文の詳細を見る

• In the heavy-quark limit, the decay spectrum for radiative and semileptonic inclusive B-meson decays is determined by a universal structure function, i. e. the shape function. We study the constraints on the bilocal heavy-quark operator for the shape function from the QCD equations of motion and heavy-quark symmetry, and we obtain a new basis of nonlocal operators that reveals relevant soft components in the shape function. Those nonlocal operators represent the "kinetic energy distribution" of the b-quark inside the B-meson and the four-parton correlations with additional quarks and gluons. A corresponding local operator basis relevant for relating the shape function to HQET parameters is also given, and novel effects of the quark-gluon correlations are discussed.

• 理論物理学刊行会の論文
• 2005-01-25

著者

• 田中 和廣

  順天堂大医

• KAWAMURA Hiroyuki

  Theory Group, KEK

• KODAIRA Jiro

  Dept. of Physics, Hiroshima University

• TANAKA Kazuhiro

  Dept. of Physics, Juntendo University

• Kodaira J

  Theory Division Kek

• Kodaira Jiro

  Department Of Physics Hiroshima University

• Kawamura H

  Radiation Laboratory Riken

• Tanaka Kazuhiro

  Dept. Of Phys. Juntendo University

• Kawamura Hiroyuki

  Theory Group Desy

• Tanaka Kazuhiro

  Dept. Mechanical Information Science And Technology Kyushu Institute Of Technology

関連論文

• Projection of lingual muscle pain to the brain
• 23aSB-3 陽子スピンとQCD(23aSB 実験核物理領域,理論核物理領域,素粒子実験領域,素粒子論領域合同シンポジウム:「陽子と中性子のスピン構造-EMC実験から20年、成果と展望」,実験核物理領域)
• 24aWG-4 横偏極Drell-Yan過程におけるMinimal-Prescriptionを用いたSoft Gluon の再足し上げ(摂動論的QCD・構造関数,理論核物理)
• QCDにおける"bilocal"及び"trilocal"演算子間の非摂動的関係式と中間子の光円錐波動関数(場の量子論の基礎的諸問題と応用,研究会報告)
• 23pSD-10 偏極ドレル・ヤン過程のスピン非対称A_に対するWandzura-Wilczekパートの寄与(23pSD 実験核物理領域,理論核物理領域,素粒子実験領域,素粒子論領域合同 核子構造,実験核物理領域)
• Transversely Polarized Drell-Yan Process and Soft Gluon Resummation in QCD
• The Dilepton Q_T Spectrum in Transversely Polarized Drell-Yan Process in QCD
• Unravelling Soft Components in the Shape Function for Inclusive B Decays(Particles and Fields)
• 奇カイラリティのクォーク分布関数 : 摂動論的 QCD の新展開
• Effect of juvenile hormone analogs on diapause termination and myo-inositol content in Aulacophora nigripennis adults (Coleoptera : Chrysomelidae)
• Vortex Structure and Scale on an Unsteady Air foil(Wing and Airfoil)
• Perturbative QCD and Nucleon Structure Functions
• D103 PIV ANIMATION OF COOLING AIR MOTION WITHIN A HOME REFRIGERATOR(Flow measurement)
• Functional properties of nociceptive neurons responsive to dorsal neck muscle stimulation
• Revisiting Wγ Production at RHIC
• Polarized Structure Functions in QCD
• Renormalization of Gauge-Invariant Operatore for the Structure Function g_2(x,Q^2)
• Conservation Laws away from Criticality beyond the Lowest Order : Particles and Fields
• Two-Way Quark-Cascade and Band Structure in P + Be^9→(h^+h^-X, h^+h^+X, h^-h^-X)
• Q^2-Evolution of Nucleon's Chiral-Odd Twist-3 Spin-Structure Function : h_L(x,Q^2)
• Visualization of Vortices around a Moving Loach(Sound and Nature)
• Meson-Baryon and Baryon-Antibaryon Ratios in Two Way Quark-Cascade Model
• B Meson Light-Cone Wavefunctions and Structure Functions in QCD in the Heavy-Quark Limit (QCDにもとづいたB中間子崩壊の研究)
• Two Way Quark-Cascade and Particle Ratios in γ+P → h^±+Anything
• Fermionic Excitation in Quark Matter
• Unravelling Soft Components in the Shape Function for Inclusive B Decays(Particles and Fields)

もっと見る 閉じる

スポンサーリンク