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arXiv · 1108.2060

Search for WZ+ZZ production with MET + jets with b enhancement at sqrt(s) = 1.96 TeV

CDF Collaboration·T. Aaltonen·B. Álvarez Gonzálezv·S. Amerio·D. Amidei·A. Anastassov·A. Annovi·J. Antos·G. Apollinari·J. A. Appel·A. Apresyan·T. Arisawa·A. Artikov·J. Asaadi·W. Ashmanskas·B. Auerbach·A. Aurisano·F. Azfar·W. Badgett·A. Barbaro-Galtieri·V. E. Barnes·B. A. Barnett·P. Barriaee·P. Bartos·M. Baucecc·G. Bauer·F. Bedeschi·D. Beecher·S. Behari·G. Bellettinidd·J. Bellinger·D. Benjamin·A. Beretvas·A. Bhatti·M. Binkley·D. Bisellocc·I. Bizjakii·K. R. Bland·C. Blocker·B. Blumenfeld·A. Bocci·A. Bodek·D. Bortoletto·J. Boudreau·A. Boveia·B. Braua·L. Brigliadoribb·A. Brisuda·C. Bromberg·E. Brucken·M. Bucciantoniodd·J. Budagov·H. S. Budd·S. Budd·K. Burkett·G. Busettocc·P. Bussey·A. Buzatu·S. Cabrerax·C. Calancha·S. Camarda·M. Campanelli·M. Campbell·F. Canelli·A. Canepa·B. Carls·D. Carlsmith·R. Carosi·S. Carrillok·S. Carron·B. Casal·M. Casarsa·A. Castrobb·P. Catastini·D. Cauz·V. Cavaliereee·M. Cavalli-Sforza·A. Cerrif·L. Cerritoq·Y. C. Chen·M. Chertok·G. Chiarelli·G. Chlachidze·F. Chlebana·K. Cho·D. Chokheli·J. P. Chou·W. H. Chung·Y. S. Chung·C. I. Ciobanu·M. A. Ciocciee·A. Clark·D. Clark·G. Compostellacc·M. E. Convery·J. Conway·M. Corbo·M. Cordelli·C. A. Cox·D. J. Cox
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Abstract

Diboson production ($WW+WZ+ZZ$) has been observed at the Tevatron in hadronic decay modes dominated by the $WW$ process. This paper describes the measurement of the cross section of $WZ$ and $ZZ$ events in final states with large $\mett$ and using $b$-jet identification as a tool to suppress $WW$ contributions. Due to the limited energy resolution, we cannot distinguish between partially hadronic decays of $WZ$ and $ZZ$, and we measure the sum of these processes. The number of signal events is extracted using a simultaneous fit to the invariant mass distribution of the two jets for events with two $b$-jet candidates and events without two $b$-jet candidates. We measure a cross section $\sigma(p\bar{p}\to WZ,ZZ) = 5.8^{+3.6}_{-3.0}$ pb, in agreement with the standard model.

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CDF Collaboration, T. Aaltonen, B. Álvarez Gonzálezv, S. Amerio, D. Amidei, A. Anastassov, A. Annovi, J. Antos, G. Apollinari, J. A. Appel, A. Apresyan, T. Arisawa, A. Artikov, J. Asaadi, W. Ashmanskas, B. Auerbach, A. Aurisano, F. Azfar, W. Badgett, A. Barbaro-Galtieri, V. E. Barnes, B. A. Barnett, P. Barriaee, P. Bartos, M. Baucecc, G. Bauer, F. Bedeschi, D. Beecher, S. Behari, G. Bellettinidd, J. Bellinger, D. Benjamin, A. Beretvas, A. Bhatti, M. Binkley, D. Bisellocc, I. Bizjakii, K. R. Bland, C. Blocker, B. Blumenfeld, A. Bocci, A. Bodek, D. Bortoletto, J. Boudreau, A. Boveia, B. Braua, L. Brigliadoribb, A. Brisuda, C. Bromberg, E. Brucken, M. Bucciantoniodd, J. Budagov, H. S. Budd, S. Budd, K. Burkett, G. Busettocc, P. Bussey, A. Buzatu, S. Cabrerax, C. Calancha, S. Camarda, M. Campanelli, M. Campbell, F. Canelli, A. Canepa, B. Carls, D. Carlsmith, R. Carosi, S. Carrillok, S. Carron, B. Casal, M. Casarsa, A. Castrobb, P. Catastini, D. Cauz, V. Cavaliereee, M. Cavalli-Sforza, A. Cerrif, L. Cerritoq, Y. C. Chen, M. Chertok, G. Chiarelli, G. Chlachidze, F. Chlebana, K. Cho, D. Chokheli, J. P. Chou, W. H. Chung, Y. S. Chung, C. I. Ciobanu, M. A. Ciocciee, A. Clark, D. Clark, G. Compostellacc, M. E. Convery, J. Conway, M. Corbo, M. Cordelli, C. A. Cox, D. J. Cox. 2011-08-09. Search for WZ+ZZ production with MET + jets with b enhancement at sqrt(s) = 1.96 TeV. https://doi.org/10.1103/physrevd.85.012002

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