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Search for a dark matter candidate produced in association with a single top quark in pp¯ collisions at vs=1.96TeV

Abstract: We report a new search for dark matter in a data sample of an integrated luminosity of 7:7 fb1 of Tevatron pp collisions at ffiffis p ¼ 1:96 TeV, collected by the CDF II detector. We search for production of a dark-matter candidate, D, in association with a single top quark. We consider the hadronic decay mode of the top quark exclusively, yielding a final state of three jets with missing transverse energy. The data are consistent with the standard model; we thus set 95% confidence level upper limits on the cross section of the process pp ! t þ D as a function of the mass of the dark-matter candidate. The limits are approximately 0.5 pb for a dark-matter particle with mass in the range of 0?150 GeV=c2.

 Autoría: Aaltonen T., Alvarez González B., Amerio S., Amidei D., Anastassov A., Annovi A., Antos J., Anzá F., Apollinari G., Appel J.A., Arisawa T., Artikov A., Asaadi J., Ashmanskas W., Auerbach B., Aurisano A., Azfar F., Badgett W., Bae T., Barbaro-Galtieri A., Barnes V.E., Barnett B.A., Barria P., Bartos P., Bauce M., Bedeschi F., Behari S., Bellettini G., Bellinger J., Benjamin D., Beretvas A., Bhatti A., Bisello D., Bizjak I., Bland

 Fuente: Physical Review Letters, 2012, 108(20), 201802

 Editorial: American Physical Society

 Fecha de publicación: 01/05/2012

 Nº de páginas: 7

 Tipo de publicación: Artículo de Revista

 DOI: 10.1103/PhysRevLett.108.201802

 ISSN: 0031-9007,1079-7114

 Url de la publicación: https://doi.org/10.1103/PhysRevLett.108.201802

Autoría

AALTONEN, T.

BARBARA ALVAREZ GONZALEZ

BRUNO CASAL LARAÑA

FRANCISCO JAVIER CUEVAS MAESTRO

JOSE ENRIQUE PALENCIA CORTEZON