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Observation and mass measurement of the baryon Xi(-)(b)

Aaltonen T.
•
Abulencia A.
•
Adelman J.
altro
SCURI, Fabrizio
2007
  • journal article

Periodico
PHYSICAL REVIEW LETTERS
Abstract
We report the observation and measurement of the mass of the bottom, strange baryon Xi(-)(b) through the decay chain Xi(-)(b)-->J/psi Xi(-), where J/psi-->mu(+)mu(-), Xi(-)-->Lambda pi(-), and Lambda-->p pi(-). A signal is observed whose probability of arising from a background fluctuation is 6.6 x 10(-15), or 7.7 Gaussian standard deviations. The Xi(-)(b) mass is measured to be 5792.9 +/- 2.5(stat) +/- 1.7(syst) MeV/c(2).
DOI
10.1103/PhysRevLett.99.052002
WOS
WOS:000248597500013
Archivio
http://hdl.handle.net/11390/879883
info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-34547698807
Diritti
metadata only access
Scopus© citazioni
133
Data di acquisizione
Jun 7, 2022
Vedi dettagli
Web of Science© citazioni
97
Data di acquisizione
Mar 24, 2024
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