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.

Search for heavy metastable particles decaying to jet pairs in p(p)over-bar collisions at root s=1.96 TeV / T., A., B. A., G., S., A., D., A., A., A., A., A., J., A., G., A., J. A., A., A., A., T., A., A., A., J., A., W., A., B., A., A., A., F., A., W., B., A., B.G., V. E., B., et al.. - In: PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY. - ISSN 1550-7998. - 85:(2012), p. 012007. [10.1103/physrevd.85.012007]

Search for heavy metastable particles decaying to jet pairs in p(p)over-bar collisions at root s=1.96 TeV

BAUCE, MATTEO;S. D. Cecco;GIAGU, Stefano;IORI, Maurizio;MARGAROLI, Fabrizio;
2012

Abstract

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.
2012
01 Pubblicazione su rivista::01a Articolo in rivista
Search for heavy metastable particles decaying to jet pairs in p(p)over-bar collisions at root s=1.96 TeV / T., A., B. A., G., S., A., D., A., A., A., A., A., J., A., G., A., J. A., A., A., A., T., A., A., A., J., A., W., A., B., A., A., A., F., A., W., B., A., B.G., V. E., B., et al.. - In: PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY. - ISSN 1550-7998. - 85:(2012), p. 012007. [10.1103/physrevd.85.012007]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/472936
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