Measurement of the WW production cross section in $p\overline{p}$ collisions at $\sqrt{s}$ = 1.96 TeV

Measurement of the WW production cross section in $p\overline{p}$ collisions at $\sqrt{s}$ = 1.96 TeV

We present a measurement of the W boson pair-production cross section in p anti-p collisions at a center-of-mass energy of sqrt{s}=1.96 TeV. The data, collected with the Run II DO detector, correspond to an integrated luminosity of 224-252 pb^-1 depending on the final state (ee, emu or mumu). We obs...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:Physical review letters 2005, Vol.94, p.151801.1-151801.7
Hauptverfasser: Abazov, V.M., Abbott, B., Abolins, M., Acharya, B.S., Adams, D.L., Adams, M., Adams, T., Agelou, M., Agram, J.L., Ahn, S.H., Ahsan, M., Alexeev, G.D., Alkhazov, G., Alton, A., Alverson, G., Alves, G.A., Anastasoaie, M., Anderson, S., Andrieu, B., Arnoud, Y., Askew, A., Asman, B., Atramentov, O., Autermann, C., Avila, C., Badaud, F., Baden, A., Baldin, B., Balm, P.W., Banerjee, S., Barberis, E., Bargassa, P., Baringer, P., Barnes, C., Barreto, J., Bartlett, J.F., Bassler, U., Bauer, D., Bean, A., Beauceron, S., Begel, M., Bellevance, A., Beri, S.B., Bernardi, G., Bernhard, R., Bertram, I., Besancon, M., Beuselinck, R., Bezzubov, V.A., Bhat, P.C., Bhatnagar, V., Binder, M., Black, K.M., Blackler, I., Blazey, G., Blekman, F., Blessing, S., Bloch, D., Blumenschein, U., Boehnlein, A., Boeriu, O., Bolton, T.A., Borcherding, F., Borissov, G., Bos, K., Bose, T., Brandt, A., Brock, R., Brooijmans, G., Bross, A., Buchanan, N.J., Buchholz, D., Buehler, M., Buescher, V., Burdin, S., Burnett, T.H., Busato, E., Butler, J.M., Bystricky, J., Carvalho, W., Casey, B.C.K., Cason, N.M., Castilla-Valdez, H., Chakrabarti, S., Chakraborty, D., Chan, K.M., Chandra, A., Chapin, D., Charles, F., Cheu, E., Chevalier, L., Cho, D.K., Choi, S. K., Christiansen, T., Christofek, L., Claes, D., Clément, B., Clément, C., Coadou, Y., Cooke, M.
Format: Artikel
Sprache:eng
Schlagworte:
High Energy Physics - Experiment
Physics
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:We present a measurement of the W boson pair-production cross section in p anti-p collisions at a center-of-mass energy of sqrt{s}=1.96 TeV. The data, collected with the Run II DO detector, correspond to an integrated luminosity of 224-252 pb^-1 depending on the final state (ee, emu or mumu). We observe 25 candidates with a background expectation of 8.1+/-0.6(stat)+/-0.6(syst)+/-0.5(lum) events. The probability for an upward fluctuation of the background to produce the observed signal is 2.3x10^-7, equivalent to 5.2 standard deviations.The measurement yields a cross section of 13.8+4.3/-3.8(stat)+1.2/-0.9(syst)+/-0.9(lum) pb, in agreement with predictions from the standard model.
ISSN:0031-9007
1079-7114
DOI:10.1103/PhysRevLett.94.151801