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Search for the production of scalar bottom quarks in pp¯ collisions at vs=1.96TeV

Abstract: We report on a search for direct scalar bottom quark (sbottom) pair production in p¯p collisions at ?s=1.96??TeV, in events with large missing transverse energy and two jets of hadrons in the final state, where at least one of the jets is required to be identified as originating from a b quark. The study uses a collider detector at Fermilab Run II data sample corresponding to 2.65??fb?1 of integrated luminosity. The data are in agreement with the standard model. In an R-parity conserving minimal supersymmetric scenario, and assuming that the sbottom decays exclusively into a bottom quark and a neutralino, 95% confidence-level upper limits on the sbottom pair production cross section of 0.1 pb are obtained. For neutralino masses below 70??GeV/c2, sbottom masses up to 230??GeV/c2 are excluded at 95% confidence level.

 Autoría: Aaltonen T., Adelman J., Álvarez González B., Amerio S., Amidei D., Anastassov A., Annovi A., Antos J., Apollinari G., Apresyan A., Arisawa T., Artikov A., Asaadi J., Ashmanskas W., Attal A., Aurisano A., Azfar F., Badgett W., Barbaro-Galtieri A., Barnes V.E., Barnett B.A., Barria P., Bartos P., Bauer G., Beauchemin P.H., Bedeschi F., Beecher D., Behari S., Bellettini G., Bellinger J., Benjamin D., Beretvas A., Bhatti A., Binkley

 Fuente: Physical Review Letters, 2020, 105(8), 081802

 Editorial: American Physical Society

 Fecha de publicación: 01/08/2010

 Nº de páginas: 7

 Tipo de publicación: Artículo de Revista

 DOI: 10.1103/PhysRevLett.105.081802

 ISSN: 0031-9007,1079-7114

 Url de la publicación: https://doi.org/10.1103/PhysRevLett.105.081802

Autoría

AALTONEN, T.

BARBARA ALVAREZ GONZALEZ

BRUNO CASAL LARAÑA

FRANCISCO JAVIER CUEVAS MAESTRO