翻訳と辞書 Words near each other ・ R U Mine? ・ R U Professional ・ R U Still Down? (Remember Me) ・ R U Still in 2 It ・ R U the Girl ・ R U There ・ R U Tuff Enuff ・ R Umadevi Nagaraj ・ R Ursae Minoris ・ R v Adams ・ R v Adams (1957) ・ R v Adams (South Africa) ・ R v Albert ・ R (Carson) v Secretary of State for Work and Pensions ・ R (complexity) ・ R (cross section ratio) ・ R (Daly) v Secretary of State for the Home Department ・ R (disambiguation) ・ R (E) v Governing Body of JFS ・ R (European Roma Rights Centre) v Immigration Officer at Prague Airport ・ R (Factortame Ltd) v Secretary of State for Transport ・ R (film) ・ R (GC) v Comr of Police of the Metropolis ・ R (Green Environmental Industries Ltd) v Hertfordshire CC ・ R (HS2 Action Alliance Ltd) v Secretary of State for Transport ・ R (Kwik-Fit (GB) Ltd) v Central Arbitration Committee ・ R (L) v Comr of Police of the Metropolis ・ R (Los Angeles Railway) ・ R (National Union of Journalists) v Central Arbitration Committee ・ R (New York City Subway service) Dictionary Lists mini英和辞書 mini和英辞書 Webster 1913 Latin-English FOLDOC Wikipedia English ウィキペディア

翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク R (cross section ratio) ： ウィキペディア英語版 R (cross section ratio) ''R'' is the ratio of the hadronic cross section to the muon cross section in electron–positron collisions: :$R\; =\; \backslash frac)\},$ where the superscript (0) indicates that the cross section has been corrected for initial state radiation. ''R'' is an important input in the calculation of the anomalous magnetic dipole moment.〔(S. Eidelman and F. Jegerlehner, Z. Phys. C67 585 (1995). )〕 Experimental values have been measured for center-of-mass energies from 400 MeV to 150 GeV.〔W.-M. Yao et al., J. Phys. G 33, 1 (2006) Section 40〕 ''R'' also provides experimental confirmation of the electric charge of quarks, in particular the charm quark and bottom quark, and the existence of three quark colors.〔W.-M. Yao et al., J. Phys. G 33, 1 (2006) Section 9.7〕 A simplified calculation of ''R'' yields :$R\; =\; 3\backslash sum\_q\; e\_q^2,$ where the sum is over all quark flavors with mass less than the beam energy. ''eq'' is the electric charge of the quark, and the factor of 3 accounts for the three colors of the quarks. QCD corrections to this formula have been calculated.〔S.G. Gorishny ''et al.'', Phys. Lett. B259 144 (1991)〕 == Notes == 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「R (cross section ratio)」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.