A search is performed for heavy metastable particles that decay into jet pairs with a macroscopic lifetime (c tau similar to 1 cm) in p (p) over bar collisions at root 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.
Titolo: | Search for heavy metastable particles decaying to jet pairs in p(p)over-bar collisions at root s=1.96 TeV |
Autori: | |
Data di pubblicazione: | 2012 |
Rivista: | |
Digital Object Identifier (DOI): | http://dx.doi.org/10.1103/PhysRevD.85.012007 |
Handle: | http://hdl.handle.net/11384/38474 |
Appare nelle tipologie: | 1.1 Articolo in rivista |