Research Papers in Physics and Astronomy

 

Date of this Version

2009

Comments

Published in Physical Review Letters 103, 071801 (2009). Copyright © 2009 The American Physical Society. Used by permission.

Abstract

We report on a first search for resonant pair production of neutral long-lived particles (NLLP) which each decay to a bb pair, using 3.6 fb-1 of data recorded with the D0 detector at the Fermilab Tevatron collider. We search for pairs of displaced vertices in the tracking detector at radii in the range 1.6–20 cm from the beam axis. No significant excess is observed above background, and upper limits are set on the production rate in a hidden-valley benchmark model for a range of Higgs boson masses and NLLP masses and lifetimes.

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