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Search for the supersymmetric partner of the top quark in pp collisions at {radical}(s)=1.96 TeV

Aaltonen, T. ; Brucken, E. ; Devoto, F. ; Mehtala, P. ; Orava, R. ; Alvarez Gonzalez, B. ; Casal, B. ; Cuevas, J. ; Gomez, G. ; Palencia, E. ; Rodrigo, T. ; Ruiz, A. ; Scodellaro, L. ; Vila, I. ; Vilar, R. ; Amerio, S. ; Dorigo, T. ; Gresele, A. ; Lazzizzera, I. ; Amidei, D.

Physical review. D, Particles and fields, 2010-11, Vol.82 (9)

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Título:
Search for the supersymmetric partner of the top quark in pp collisions at {radical}(s)=1.96 TeV
Autor: Aaltonen, T. ; Brucken, E. ; Devoto, F. ; Mehtala, P. ; Orava, R. ; Alvarez Gonzalez, B. ; Casal, B. ; Cuevas, J. ; Gomez, G. ; Palencia, E. ; Rodrigo, T. ; Ruiz, A. ; Scodellaro, L. ; Vila, I. ; Vilar, R. ; Amerio, S. ; Dorigo, T. ; Gresele, A. ; Lazzizzera, I. ; Amidei, D.
Assuntos: B QUARKS ; BARYON-BARYON INTERACTIONS ; BEAUTY PARTICLES ; COLLISIONS ; DECAY ; ELEMENTARY PARTICLES ; ENERGY ; ENERGY RANGE ; FERMILAB COLLIDER DETECTOR ; FERMIONS ; FIELD THEORIES ; GRAND UNIFIED THEORY ; HADRON-HADRON INTERACTIONS ; INTERACTIONS ; KINETIC ENERGY ; LEPTONS ; LUMINOSITY ; MASS ; MASSLESS PARTICLES ; MATHEMATICAL MODELS ; MEASURING INSTRUMENTS ; NEUTRINOS ; NUCLEON-ANTINUCLEON INTERACTIONS ; NUCLEON-NUCLEON INTERACTIONS ; OPTICAL PROPERTIES ; PARITY ; PARTICLE DECAY ; PARTICLE INTERACTIONS ; PARTICLE MODELS ; PARTICLE PROPERTIES ; PHYSICAL PROPERTIES ; PHYSICS OF ELEMENTARY PARTICLES AND FIELDS ; POSTULATED PARTICLES ; PROTON-ANTIPROTON INTERACTIONS ; PROTON-NUCLEON INTERACTIONS ; PROTON-PROTON INTERACTIONS ; QUANTUM FIELD THEORY ; QUARKS ; RADIATION DETECTORS ; SPARTICLES ; STANDARD MODEL ; SUPERSYMMETRY ; SYMMETRY ; T QUARKS ; TEV RANGE ; TEV RANGE 01-10 ; TOP PARTICLES ; TRANSVERSE ENERGY ; UNIFIED GAUGE MODELS
É parte de: Physical review. D, Particles and fields, 2010-11, Vol.82 (9)
Descrição: We present a search for the lightest supersymmetric partner of the top quark in proton-antiproton collisions at a center-of-mass energy {radical}(s)=1.96 TeV. This search was conducted within the framework of the R parity conserving minimal supersymmetric extension of the standard model, assuming the stop decays dominantly to a lepton, a sneutrino, and a bottom quark. We searched for events with two oppositely-charged leptons, at least one jet, and missing transverse energy in a data sample corresponding to an integrated luminosity of 1 fb{sup -1} collected by the Collider Detector at Fermilab experiment. No significant evidence of a stop quark signal was found. Exclusion limits at 95% confidence level in the stop quark versus sneutrino mass plane are set. Stop quark masses up to 180 GeV/c{sup 2} are excluded for sneutrino masses around 45 GeV/c{sup 2}, and sneutrino masses up to 116 GeV/c{sup 2} are excluded for stop quark masses around 150 GeV/c{sup 2}.
Editor: United States
Idioma: Inglês

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Search for the supersymmetric partner of the top quark in pp collisions at {radical}(s)=1.96 TeV

Aaltonen, T. ; Brucken, E. ; Devoto, F. ; Mehtala, P. ; Orava, R. ; Alvarez Gonzalez, B. ; Casal, B. ; Cuevas, J. ; Gomez, G. ; Palencia, E. ; Rodrigo, T. ; Ruiz, A. ; Scodellaro, L. ; Vila, I. ; Vilar, R. ; Amerio, S. ; Dorigo, T. ; Gresele, A. ; Lazzizzera, I. ; Amidei, D.

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