We present a measurement of the W-boson-pair production cross section in pp¯ collisions at 1.96 TeV center-of-mass energy and the first measurement of the differential cross section as a function of jet multiplicity and leading-jet energy. The W+W− cross section is measured in the final state comprising two charged leptons and neutrinos, where either charged lepton can be an electron or a muon. Using data collected by the CDF experiment corresponding to 9.7 fb−1 of integrated luminosity, a total of 3027 collision events consistent with W+W− production are observed with an estimated background contribution of 1790 ± 190 events. The measured total cross section is σ(pp¯ → W+W−) = 14.0 ± 0.6 (stat)+1.2−1.0 (syst) ± 0.8 (lumi) pb, consistent with the standard model prediction.

Measurement of the production and differential cross sections of W+W- bosons in association with jets in p(p)over-bar collisions at root s = 1.96 TeV / Aaltonen, T., Amerio, S., Amidei, D., Anastassov, A., Annovi, A., Antos, J., Apollinari, G., Appel, J.A., Arisawa, T., Artikov, A., Asaadi, J., Ashmanskas, W., Auerbach, B., Aurisano, A., Azfar, F., Badgett, W., Bae, T., Barbaro Galtieri, A., Barnes, V.E., Barnett, B.A., et al.. - In: PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY. - ISSN 1550-7998. - STAMPA. - 91:11(2015). [10.1103/PhysRevD.91.111101]

Measurement of the production and differential cross sections of W+W- bosons in association with jets in p(p)over-bar collisions at root s = 1.96 TeV

GIAGU, Stefano;IORI, Maurizio;MARGAROLI, Fabrizio;
2015

Abstract

We present a measurement of the W-boson-pair production cross section in pp¯ collisions at 1.96 TeV center-of-mass energy and the first measurement of the differential cross section as a function of jet multiplicity and leading-jet energy. The W+W− cross section is measured in the final state comprising two charged leptons and neutrinos, where either charged lepton can be an electron or a muon. Using data collected by the CDF experiment corresponding to 9.7 fb−1 of integrated luminosity, a total of 3027 collision events consistent with W+W− production are observed with an estimated background contribution of 1790 ± 190 events. The measured total cross section is σ(pp¯ → W+W−) = 14.0 ± 0.6 (stat)+1.2−1.0 (syst) ± 0.8 (lumi) pb, consistent with the standard model prediction.
2015
W-boson; W-boson production; proton-antiproton collisions
01 Pubblicazione su rivista::01a Articolo in rivista
Measurement of the production and differential cross sections of W+W- bosons in association with jets in p(p)over-bar collisions at root s = 1.96 TeV / Aaltonen, T., Amerio, S., Amidei, D., Anastassov, A., Annovi, A., Antos, J., Apollinari, G., Appel, J.A., Arisawa, T., Artikov, A., Asaadi, J., Ashmanskas, W., Auerbach, B., Aurisano, A., Azfar, F., Badgett, W., Bae, T., Barbaro Galtieri, A., Barnes, V.E., Barnett, B.A., et al.. - In: PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY. - ISSN 1550-7998. - STAMPA. - 91:11(2015). [10.1103/PhysRevD.91.111101]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/839109
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