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Open Access item Search for heavy metastable particles decaying to jet pairs in pp̅ collisions at √s=1.96  TeV

Authors:Aaltonen, T.
Álvarez González, B.
Casal, Bruno
Cuevas, Javier
Gómez, G.
Gómez-Ceballos, Guillelmo
Palencia, Enrique
Rodrigo, Teresa
Scodellaro, Luca
Vila, Iván
Vilar, Rocío
Vizán, J.
Issue Date:2012
Publisher:American Physical Society
Citation:Physical Review D 85(1): 012007 (2012)
Abstract:A search is performed for heavy metastable particles that decay into jet pairs with a macroscopic lifetime (ct-1 cm) in pp̅ collisions at √s=1.96  TeV using data from the CDF II detector at Fermilab corresponding to an integrated luminosity of 3.2  fb-1. To estimate the standard model background, a data-driven approach is used. Probability-density functions are constructed to model secondary vertices from known processes. No statistically significant excess is observed above the background. Limits on the production cross section in a hidden valley benchmark phenomenology are set for various Higgs boson masses as well as metastable particle masses and lifetimes.
Description:16 páginas, 12 figuras, 9 tablas.-- CDF Collaboration: et al.
Publisher version (URL):http://dx.doi.org/10.1103/PhysRevD.85.012007
URI:http://hdl.handle.net/10261/52051
ISSN:1550-7998
E-ISSNmetadata.dc.identifier.doi = DOI:1550-2368
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Appears in Collections:(IFCA) Artículos

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