【摘 要】
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We study the potential of the LHCb 13 TeV single w and Z boson pseudo-data for constraining the par-ton distribution functions(PDFs)of the proton.As an example,
【机 构】
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Institute of Particle Physics, Central China Normal University, Wuhan 430079 China;School of Physics
论文部分内容阅读
We study the potential of the LHCb 13 TeV single w and Z boson pseudo-data for constraining the par-ton distribution functions(PDFs)of the proton.As an example,we demonstrate the sensitivity of the LHCb 13 TeV data,collected with integrated luminosities of 5 fb-1 and 300 fb-1,to reducing the PDF uncertainty bands of the CT14HERA2 PDFs,using the error PDF updating package EPUMP.The sensitivities of various experimental ob-servables are compared.Generally,sizable reductions in PDF uncertainties can be observed in the 300 fb-1 data sample,particularly in the small-x region.The double-differential cross section measurement of Z boson pT and rapidity can greatly reduce the uncertainty bands of u and d quarks in almost the whole x range,as compared to vari-ous single observable measurements.
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