Determination of the parton distributions and structure functions of the proton from neutrino and antineutrino reactions on hydrogen and deuterium期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

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Determination of the parton distributions and structure functions of the proton from neutrino and antineutrino reactions on hydrogen and deuterium

Authors:	Jones G T Jones R W L Kennedy B W Klein H Morrison D R O Wachsmuth H Miller D B Mobayyen M M Wainstein S Aderholz M Hantke D Katz U F Kern J Schmitz N Wittek W Borner H P Myatt G Cooper-Sarkar A M Guy J Venus W Bullock F W Burke S

Institution:	1.Institut für Physik, THEP, Johannes Gutenberg-Universit?t, D-55099, Mainz, Germany ;2.Rutherford Appleton Laboratory, Chilton, OX11 0QX, Didcot, Oxon, UK ;3.Departament de Fisica Teòrica, Univ. de València, and IFIC, Univ. de València-CSIC, E-46100, Burjassot (València), Spain ;

Abstract:	The analytic expressions for the production cross sections of polarized bottom and top quarks ine ^* e ^– annihilation are explicitly derived at the one-loop order of strong interactions. Chirality-violating mass effects will reduce the longitudinal spin polarization for the light quark pairs by an amount of 3%, when one properly considers the massless limit for the final quarks. Numerical estimates of longitudinal spin polarization effects in the processese ^* e ^–b $\bar b$ (g) ande ^* e ^–t $\bar t$ (g) are presented.supported in part by the BMFT, Germany under contract 06MZ730

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