(2019) Search for a stable six-quark state at BABAR. Physical Review Letters, 122 (7). 072002 . doi:10.1103/PhysRevLett.122.072002

Preview

PDF WRAP-search-stable-six-quark-state-BABAR-Gershon-2019.pdf - Published Version - Requires a PDF viewer. Available under License Creative Commons Attribution 4.0. Download (595Kb) | Preview

Request Changes to record.

Abstract

Recent investigations have suggested that the six-quark combination uuddss could be a deeply bound state (S) that has eluded detection so far, and a potential dark matter candidate. We report the first search fora stable, doubly strange six-quark state in Υ→S ̄ Λ ̄Λ decays based on a sample of 90×106 Υ (2S) and 110×106 Υ (3S) decays collected by the BABAR experiment. No signal is observed, and 90% confidence level limits on the combined Υ (2S,3S) → S ̄Λ ̄Λ branching fraction in the range (1.2–1.4)×10−7arederived for mS<2.05 GeV. These bounds set stringent limits on the existence of such exotic particles

Item Type:	Journal Article
Subjects:	Q Science > QB Astronomy Q Science > QC Physics
Divisions:	Faculty of Science > Physics
SWORD Depositor:	Library Publications Router
Library of Congress Subject Headings (LCSH):	Quarks, Dark matter (Astronomy)
Journal or Publication Title:	Physical Review Letters
Publisher:	American Physical Society
ISSN:	0031-9007
Official Date:	22 February 2019
Dates:	Date Event 22 February 2019 Published 2019 Accepted
Volume:	122
Number:	7
Article Number:	072002
DOI:	10.1103/PhysRevLett.122.072002
Status:	Peer Reviewed
Publication Status:	Published
Access rights to Published version:	Open Access

Request changes or add full text files to a record

Repository staff actions (login required)

View Item

Downloads