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arXiv · 1508.06980

Measurement of vector boson plus $D^{*}(2010)^+$ meson production in $\bar{p}p$ collisions at $\sqrt{s}=1.96\, {\rm TeV}$

CDF Collaboration·T. Aaltonen·S. Amerio·D. Amidei·A. Anastassov·A. Annovi·J. Antos·G. Apollinari·J. A. Appel·T. Arisawa·A. Artikov·J. Asaadi·W. Ashmanskas·B. Auerbach·A. Aurisano·F. Azfar·W. Badgett·T. Bae·A. Barbaro-Galtieri·V. E. Barnes·B. A. Barnett·P. Barria·P. Bartos·M. Bauce·F. Bedeschi·S. Behari·G. Bellettini·J. Bellinger·D. Benjamin·A. Beretvas·A. Bhatti·K. R. Bland·B. Blumenfeld·A. Bocci·A. Bodek·D. Bortoletto·J. Boudreau·A. Boveia·L. Brigliadori·C. Bromberg·E. Brucken·J. Budagov·H. S. Budd·K. Burkett·G. Busetto·P. Bussey·P. Butti·A. Buzatu·A. Calamba·S. Camarda·M. Campanelli·F. Canelli·B. Carls·D. Carlsmith·R. Carosi·S. Carrillo·B. Casal·M. Casarsa·A. Castro·P. Catastini·D. Cauz·V. Cavaliere·A. Cerri·L. Cerrito·Y. C. Chen·M. Chertok·G. Chiarelli·G. Chlachidze·K. Cho·D. Chokheli·A. Clark·C. Clarke·M. E. Convery·J. Conway·M. Corbo·M. Cordelli·C. A. Cox·D. J. Cox·M. Cremonesi·D. Cruz·J. Cuevas·R. Culbertson·N. d'Ascenzo·M. Datta·P. de Barbaro·L. Demortier·L. Marchese·M. Deninno·F. Devoto·M. D'Errico·A. Di Canto·B. Di Ruzza·J. R. Dittmann·M. D'Onofrio·S. Donati·M. Dorigo·A. Driutti·K. Ebina·R. Edgar·A. Elagin
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Abstract

A measurement of vector boson ($V$) production in conjunction with a $D^{*}(2010)^+$ meson is presented. Using a data sample corresponding to $9.7\, {\rm fb}^{-1}$ of ^Mproton-antiproton collisions at center-of-mass energy $\sqrt{s}=1.96\rm~ TeV$ produced by the Fermilab Tevatron, we reconstruct $V+D^{*+}$ samples with the CDF~II detector. The $D^{*+}$ is fully reconstructed in the $D^{*}(2010)^+ \rightarrow D^{0}(\to K^-\pi^+)\pi^+$ decay mode. This technique is sensitive to the associated production of vector boson plus charm or bottom mesons. We measure the ratio of production cross sections $\sigma(W+D^{*})/\sigma(W)$ = $[1.75\pm 0.13 {\rm (stat)}\pm 0.09 {\rm (syst)}]\% $ and $\sigma(Z+D^{*})/\sigma(Z)$ = $[1.5\pm 0.4 {\rm (stat)} \pm 0.2 {\rm (syst)}]\% $ and perform a differential measurement of $d\sigma(W+D^{*})/dp_T(D^{*})$. Event properties are utilized to determine the fraction of $V+D^{*}(2010)^+$ events originating from different production processes. The results are in agreement with the predictions obtained with the {\sc pythia} program, limiting possible contribution from non-standard-model physics processes.

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CDF Collaboration, T. Aaltonen, S. Amerio, D. Amidei, A. Anastassov, A. Annovi, J. Antos, G. Apollinari, J. A. Appel, T. Arisawa, A. Artikov, J. Asaadi, W. Ashmanskas, B. Auerbach, A. Aurisano, F. Azfar, W. Badgett, T. Bae, A. Barbaro-Galtieri, V. E. Barnes, B. A. Barnett, P. Barria, P. Bartos, M. Bauce, F. Bedeschi, S. Behari, G. Bellettini, J. Bellinger, D. Benjamin, A. Beretvas, A. Bhatti, K. R. Bland, B. Blumenfeld, A. Bocci, A. Bodek, D. Bortoletto, J. Boudreau, A. Boveia, L. Brigliadori, C. Bromberg, E. Brucken, J. Budagov, H. S. Budd, K. Burkett, G. Busetto, P. Bussey, P. Butti, A. Buzatu, A. Calamba, S. Camarda, M. Campanelli, F. Canelli, B. Carls, D. Carlsmith, R. Carosi, S. Carrillo, B. Casal, M. Casarsa, A. Castro, P. Catastini, D. Cauz, V. Cavaliere, A. Cerri, L. Cerrito, Y. C. Chen, M. Chertok, G. Chiarelli, G. Chlachidze, K. Cho, D. Chokheli, A. Clark, C. Clarke, M. E. Convery, J. Conway, M. Corbo, M. Cordelli, C. A. Cox, D. J. Cox, M. Cremonesi, D. Cruz, J. Cuevas, R. Culbertson, N. d'Ascenzo, M. Datta, P. de Barbaro, L. Demortier, L. Marchese, M. Deninno, F. Devoto, M. D'Errico, A. Di Canto, B. Di Ruzza, J. R. Dittmann, M. D'Onofrio, S. Donati, M. Dorigo, A. Driutti, K. Ebina, R. Edgar, A. Elagin. 2015-08-27. Measurement of vector boson plus $D^{*}(2010)^+$ meson production in $\bar{p}p$ collisions at $\sqrt{s}=1.96\, {\rm TeV}$. https://doi.org/10.1103/physrevd.93.052012

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