English   español  
Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/8521
COMPARTIR / IMPACTO:
Estadísticas
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar a otros formatos:
Título

Searches for direct pair production of supersymmetric top and supersymmetric bottom quarks in pp̅ collisions at √s=1.96  TeV

AutorAaltonen, T.; Vila, Iván ; Vilar, Rocío ; Rodrigo, Teresa ; Cabrera, Susana ; Chuang, S. H. ; Ruiz Jimeno, Alberto ; Gómez, G. ; Cuenca Almenar, Cristóbal ; Cuevas, Javier ; Palencia, Enrique ; Casal, Bruno ; Piedra, Jonatan ; Scodellaro, Luca
Palabras claveScalar Top
Electromagnetic Calorimeter
Hadron Colliders
Standard Model
Decays
Fecha de publicación25-oct-2007
EditorAmerican Physical Society
CitaciónPhysical Review D 76(7): 072010 (2007)
ResumenWe search for direct pair production of supersymmetric top quarks and supersymmetric bottom quarks in proton-antiproton collisions at root s=1.96 TeV, using 295 pb(-1) of data recorded by the Collider Detector at Fermilab (CDF II) experiment. The supersymmetric top (supersymmetric bottom) quarks are selected by reconstructing their decay into a charm (bottom) quark and a neutralino, which is assumed to be the lightest supersymmetric particle. The signature of such processes is two energetic heavy-flavor jets and missing transverse energy. The number of events that pass our selection for each search process is consistent with the expected standard model background. By comparing our results to the theoretical production cross sections of the supersymmetric top and supersymmetric bottom quarks in the minimal supersymmetric standard model, we exclude, at a 95% confidence level in the frame of that model, a supersymmetric top quark mass up to 132 GeV/c^2 for a neutralino mass of 48 GeV/c^2, and a supersymmetric bottom quark mass up to 193 GeV/c^2 for a neutralino mass of 40 GeV/c^2.
Descripción12 páginas, 5 figuras, 4 tablas.-- PACS nrs.: 12.60.Jv, 13.85.Rm, 14.80.Ly.-- CDF Collaboration: et al.
Versión del editorhttp://dx.doi.org/10.1103/PhysRevD.76.072010
URIhttp://hdl.handle.net/10261/8521
DOI10.1103/PhysRevD.76.072010
ISSN1550-7998
Aparece en las colecciones: (IFCA) Artículos
(IFIC) Artículos
Ficheros en este ítem:
Fichero Descripción Tamaño Formato  
e072010.pdf365,54 kBAdobe PDFVista previa
Visualizar/Abrir
Mostrar el registro completo
 

Artículos relacionados:


NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.