First Measurement of the Angular Coefficients of Drell-Yan e^ + e^ - Pairs in the Z Mass Region from pp over ¯ Collisions at sqrt s =1.96 TeV.
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| Abstract |    :  
                  We report on the first measurement of the angular distributions of final state electrons in pp[over ¯]→γ^{*}/Z→e^{+}e^{-}+X events produced in the Z boson mass region at sqrt[s]=1.96 TeV. The data sample collected by the CDF II detector for this result corresponds to 2.1 fb^{-1} of integrated luminosity. The angular distributions are studied as a function of the transverse momentum of the electron-positron pair and show good agreement with the Lam-Tung relation, consistent with a spin-1 description of the gluon, and demonstrate that, at high values of the transverse momentum, Z bosons are produced via quark-antiquark annihilation and quark-gluon Compton processes.  | 
        
| Year of Publication |    :  
                  1969 
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| Journal |    :  
                  Physical review letters 
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| Volume |    :  
                  106 
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| Issue |    :  
                  24 
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| Number of Pages |    :  
                  241801 
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| Date Published |    :  
                  2011 Jun 17 
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| ISSN Number |    :  
                  0031-9007 
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| URL |    :  
                  http://link.aps.org/abstract/PRL/v106/p241801 
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| Short Title |    :  
                  First Measurement of the Angular Coefficients of DrellYan e e Pa 
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