Pentaquark Searches at CDF

TL;DR

This paper reports on searches for pentaquark states at the CDF detector using proton-antiproton collision data, finding no evidence of narrow pentaquark resonances in multiple decay channels.

Contribution

First comprehensive search for pentaquarks at CDF in multiple decay modes with a large dataset, setting limits on their production.

Findings

No evidence of narrow pentaquark resonances was observed.

The analysis constrains the production rates of pentaquarks at Tevatron energies.

Abstract

Recently there has been revival of interest in exotic baryon spectroscopy triggered by experimental evidence for pentaquarks containing u,d,s and c-quarks. We report results of the searches for pentaquark states in decays to p K0S, Xi- pi+,- and D*- p performed at CDF detector using 220 pb-1 sample of pp= interactions at sqrt(s) of 1.96 TeV. No evidence for narrow resonances were found in either mode.