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Observation ofWZProduction

descriptionPublicationkeyboard_double_arrow_right Article , Preprint , Journal , Other literature type 19 Apr 2007Embargo end date: 01 Jan 2007 United States, Switzerland, France, France, United Kingdom, France, United States, Italy, United Kingdom, France, United Kingdom, France, Belgium, Cyprus, Germany Publisher:American Physical Society (APS)Journal:Physical Review Letters, volume 98 (issn: 0031-9007, eissn: 1079-7114,

Authors: Abulencia, A.; Adelman, J.; Affolder, T.; Akimoto, T.; Albrow, M. G.; Ambrose, D.; Amerio, S.; +193 Authors

Abulencia, A.; Adelman, J.; Affolder, T.; Akimoto, T.; Albrow, M. G.; Ambrose, D.; Amerio, S.; Amidei, D.; Anastassov, A.; Anikeev, K.; Annovi, A.; Antos, J.; Aoki, M.; Apollinari, G.; Arguin, J. -F; Arisawa, T.; Artikov, A.; Ashmanskas, W.; Attal, A.; Azfar, F.; Azzi-Bacchetta, P.; Azzurri, P.; Bacchetta, N.; Badgett, W.; Barbaro-Galtieri, A.; Barnes, V. E.; Barnett, B. A.; Baroiant, S.; Bartsch, V.; Bauer, G.; Bedeschi, F.; Behari, S.; Belforte, S.; Bellettini, G.; Bellinger, J.; Belloni, A.; Benjamin, D.; Beretvas, Andrew; Beringer, J.; Berry, T.; Bhatti, A.; Binkley, M.; Bisello, D.; Blair, R. E.; Blocker, C.; Blumenfeld, B.; Bocci, A.; Bodek, A.; Boisvert, V.; Bolla, G.; Bolshov, A.; Bortoletto, D.; Boudreau, J.; Boveia, A.; Brau, B.; Brigliadori, L.; Bromberg, C.; Brubaker, E.; Budagov, J.; Budd, H. S.; Budd, S.; Budroni, S.; Burkett, K.; Busetto, G.; Bussey, P.; Byrum, K. L.; Cabrera, S.; Campanelli, M.; Campbell, M.; Canelli, Florencia M.; Canepa, A.; Carillo, S.; Carlsmith, D.; Carosi, R.; Carron, S.; Casarsa, M.; Castro, A.; Catastini, P.; Cauz, D.; Cavalli-Sforza, M.; Cerri, A.; Cerrito, L.; Chang, S. H.; Chen, Y. C.; Chertok, M.; Chiarelli, G.; Chlachidze, G.; Chlebana, F.; Cho, I.; Cho, K.; Chokheli, D.; Chou, J. P.; Choudalakis, G.; Chuang, S. H.; Chung, K.; Chung, W. H.; Chung, Y. S.; Ciljak, M.; Ciobanu, C. I.; Ciocci, M. A.; Clark, A.; Clark, D.; Coca, M.; Compostella, G.; Convery, M. E.; Conway, J.; Cooper, B.; Copic, K.; Cordelli, M.; Cortiana, G.; Crescioli, F.; Almenaro, C. C.; Cuevas, J.; Culbertson, R.; Cully, J. C.; Cyr, D.; Daronco, S.; Datta, M.; D'Auria, S.; Davies, T.; D'Onofrio, M.; Dagenhart, D.; De Barbaro, P.; De Cecco, S.; Deisher, A.; De Lentdeckerc, G.; Dell'Orso, M.; Delli Paoli, F.; Demortier, L.; Deng, J.; Deninno, M.; De Pedis, D.; Derwent, P. F.; Di Giovanni, G. P.; Dionisi, Carlo; Di Ruzza, B.; Dittmann, J. R.; Dituro, P.; Dörr, C.; Donati, S.; Donegà, Mauro; Dong, P.; Donini, J.; Dorigo, T.; Dube, S.; Efron, J.; Erbacher, R.; Errede, D.; Errede, S.; Eusebi, R.; Fang, H. C.; Farrington, S.; Fedorko, I.; Fedorko, W. T.; Feild, R. G.; Feindt, M.; Fernandez, J. P.; Field, R.; Flanagan, G.; Foland, A.; Forrester, S.; Foster, G. W.; Franklin, M.; Freeman, J. C.; Furic, I.; Gallinaro, M.; Galyardt, J.; Garcia, J. E.; Garberson, F.; Garfinkel, A. F.; Gay, C.; Gerberich, H.; Gerdes, D.; Giagu, S.; Giannetti, P.; Gibson, A.; Gibson, K.; Gimmell, J. L.; Ginsburg, C.; Giokaris, N.; Giordani, M.; Giromini, P.; Giunta, M.; Giurgiu, G.; Glagolev, V.; Glenzinski, D.; Gold, M.; Goldschmidt, N.; Goldstein, J.; Golossanov, A.; Gomez, G.; Gomez-Ceballos, G.; Goncharov, M.; González, O.; Gorelov, I.; Goshaw, A. T.; Goulianos, Konstantin; Gresele, A.; Griffiths, M.; Grinstein, S.;

doi: 10.1103/physrevlett.98.161801 , 10.48550/arxiv.hep-ex/0702027

pmid: 17501412

arXiv: hep-ex/0702027 , http://arxiv.org/abs/hep-ex/0702027

handle: 11365/36626 , 10067/812330151162165141 , 11572/25688 , 11577/2469073 , 11390/884425 , 11590/132789 , 11573/360579 , 11584/46551 , 11568/828800 , 11580/24979 , 11695/2816 , 11585/54419 , 2158/1196576 , 11571/577333 , 11369/426794

Observation ofWZProduction

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Abstract

We report the first observation of the associated production of a W boson and a Z boson. This result is based on 1.1 fb-1 of integrated luminosity from ppbar collisions at sqrt{s} = 1.96 TeV collected with the CDF II detector at the Fermilab Tevatron. We observe 16 WZ candidates passing our event selection with an expected background of 2.7 +/- 0.4 events. A fit to the missing transverse energy distribution indicates an excess of events compared to the background expectation corresponding to a significance equivalent to six standard deviations. The measured cross section is sigma(ppbar -> WZ) = 5.0^{+1.8}_{-1.6} pb, consistent with the standard model expectation.

7 pages, 3 figures. Submitted to Phys. Rev. Lett

Countries

United States, Switzerland, France, France, United Kingdom, France, United States, Italy, United Kingdom, France, United Kingdom, France, Belgium, Cyprus, Germany

Related Organizations

University of Pisa
Italy
Michigan State University
United States
University of Michigan–Flint
United States
Waseda University
Japan
Johns Hopkins University
United States

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Keywords

Plasma collision processes, [PHYS.HEXP] Physics [physics]/High Energy Physics - Experiment [hep-ex], Fermilab Tevatron, Physics, Multidisciplinary, Z-GAMMA PRODUCTION, HADRON COLLIDERS, BOSON SECTOR, CDF, FOS: Physical sciences, Particle detectors, 530, info:eu-repo/classification/ddc/500.2, Z-GAMMA PRODUCTION, CDF Collaboration, High Energy Physics - Experiment, High Energy Physics - Experiment (hep-ex), [ PHYS.HEXP ] Physics [physics]/High Energy Physics - Experiment [hep-ex], Standard deviations, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], HADRON COLLIDERS, Bosons, Multidisciplinary, Physics, 500, Energy distribution, 12.15.Ji 13.40.Em 13.87.Ce 14.70.Fm 14.70.Hp, Luminance, Fermi level, CDF, [PHYS.HEXP] Physics/High Energy Physics - Experiment, BOSON SECTOR, ddc: ddc:500.2

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