INVESTIGADORES
OTERO Y GARZON Gustavo Javier
artículos
Título:
Search for quark contact interactions in dijet angular distributions in pp collisions at 7 TeV measured with the ATLAS detector
Autor/es:
G. OTERO Y GARZON, R. PIEGAIA, ET. AL., THE ATLAS COLLABORATION
Revista:
PHYSICS LETTERS B
Editorial:
ELSEVIER SCIENCE BV
Referencias:
Año: 2010 p. 327 - 345
ISSN:
0370-2693
Resumen:
Dijet angular distributions from the first LHC pp collisions at
center-of-mass energy sqrt(s) = 7 TeV have been measured with the ATLAS
detector. The dataset used for this analysis represents an integrated
luminosity of 3.1 pb-1. Dijet χ
\chi
distributions and centrality ratios have been measured up to dijet
masses of 2.8 TeV, and found to be in good agreement with Standard
Model predictions. Analysis of the χ
\chi distributions excludes quark contact interactions with a compositeness scale Λ
\Lambda below 3.4 TeV, at 95% confidence level, significantly exceeding previous limits.
