Adair, A.Boulahouache, C.Ecklund, K.M.Geurts, F.J.M.Padley, B.P.Redjimi, R.Roberts, J.Zabel, J.2015-09-082015-09-082012Adair, A., Boulahouache, C., Ecklund, K.M., et al.. "Measurement of the Electron Charge Asymmetry in Inclusive W Production in pp Collisions at √s=7  TeV." <i>Physical Review Letters,</i> 109, no. 11 (2012) American Physical Society: 111806. http://dx.doi.org/10.1103/PhysRevLett.109.111806.https://hdl.handle.net/1911/81624A measurement of the electron charge asymmetry in inclusive pp→W+X→eν+X production at √s=7  TeV is presented based on data recorded by the CMS detector at the LHC and corresponding to an integrated luminosity of 840  pb−1. The electron charge asymmetry reflects the unequal production of W+ and W− bosons in pp collisions. The electron charge asymmetry is measured in bins of the absolute value of electron pseudorapidity in the range of |η|<2.4. The asymmetry rises from about 0.1 to 0.2 as a function of the pseudorapidity and is measured with a relative precision better than 7%. This measurement provides new stringent constraints for parton distribution functions.engThis is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.Journal articlehttp://dx.doi.org/10.1103/PhysRevLett.109.111806