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Measurement of vector boson plus D*(2010)+ meson production in ¯pp collisions at vs=1.96?TeV

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??fb-1 of proton-antiproton collisions at center-of-mass energy vs=1.96??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)+?D0(?K-p+)p+ 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 s(W+D*)/s(W)=[1.75±0.13(stat)±0.09(stat)]% and s(Z+D*)/s(Z)=[1.5±0.4(stat)±0.2(stat)]% and perform a differential measurement of ds(W+D*)/dpT(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 PYTHIA program, limiting possible contribution from non-standard-model physics processes.

 Fuente: Phys. Rev. D, Vol. 93, Num. 5, Pag. 052012 (2016)

 Publisher: American Physical Society

 Publication date: 01/05/2016

 No. of pages: 9

 Publication type: Article

 DOI: 10.1103/PhysRevD.93.052012

 ISSN: 1550-7998,1550-2368,2470-0010,2470-0029

 Publication Url: https://doi.org/10.1103/PhysRevD.93.052012

Authorship

AALTONEN, TIMO ANTERO

BRUNO CASAL LARAÑA

FRANCISCO JAVIER CUEVAS MAESTRO

JOSE ENRIQUE PALENCIA CORTEZON