Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/22152
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Título : Direct Measurement of the W Production Charge Asymmetry in pp Collisions at root s=1.96 TeV
Autor : CDF Collaboration, Cabrera, Susana, Cuenca Almenar, Cristóbal, Álvarez González, B., Casal, Bruno, Cuevas, Javier, Gómez, G., Rodrigo, Teresa, Ruiz, Alberto, Scodellaro, Luca, Vila, Iván, Vilar, Rocío, Aaltonen, T.
Fecha de publicación : 8-May-2009
Editor: American Physical Society
Resumen: We present the first direct measurement of the W production charge asymmetry as a function of the W boson rapidity y(W) in pp collisions at root s=1.96 TeV. We use a sample of W -> e nu events in data from 1 fb(-1) of integrated luminosity collected using the CDF II detector. In the region |y(W)|< 3.0, this measurement is capable of constraining the ratio of up- and down-quark momentum distributions in the proton more directly than in previous measurements of the asymmetry that are functions of the charged-lepton pseudorapidity.
Versión del editor: http://dx.doi.org/10.1103/PhysRevLett.102.181801
URI : http://hdl.handle.net/10261/22152
ISSN: 0031-9007
DOI: 10.1103/PhysRevLett.102.181801
Citación : Physical Review Letters 102 (18): 181801 (2009)
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