# Direct Measurement of the W Production Charge Asymmetry in pp̅ Collisions at √s=1.96  TeV

﻿

http://hdl.handle.net/10138/24395

#### Citation

Aaltonen , T , Mehtala , P , Orava , R , Mäki , T , Saarikko , H , Osterberg , K & CDF Collaboration 2009 , ' Direct Measurement of the W Production Charge Asymmetry in pp̅ Collisions at √s=1.96  TeV ' , Physical Review Letters , vol. 102 , no. 18 , pp. 181801 . https://doi.org/10.1103/PhysRevLett.102.181801

 Title: Direct Measurement of the W Production Charge Asymmetry in pp̅ Collisions at √s=1.96  TeV Author: Aaltonen, T.; Mehtala, P.; Orava, R.; Mäki, T.; Saarikko, H.; Osterberg, K.; CDF Collaboration Contributor: University of Helsinki, Helsinki Institute of PhysicsUniversity of Helsinki, Helsinki Institute of PhysicsUniversity of Helsinki, Helsinki Institute of PhysicsUniversity of Helsinki, Helsinki Institute of PhysicsUniversity of Helsinki, Department of PhysicsUniversity of Helsinki, Department of Physics Date: 2009-05-08 Language: eng Number of pages: 7 Belongs to series: Physical Review Letters ISSN: 0031-9007 URI: http://hdl.handle.net/10138/24395 Abstract: We present the first direct measurement of the $W$ production charge asymmetry as a function of the $W$ boson rapidity $\yW$ in $\ppbar$ collisions at $\sqrt{s} = 1.96$ $\TeV$. We use a sample of $\wenu$ events in data from 1 $\ifb$ of integrated luminosity collected using the CDF II detector. In the region \$|\yW| Subject: 114 Physical sciences hep-ex Rights:
﻿