Observation of Λ_{c}
Phys Rev Lett
; 118(11): 112001, 2017 Mar 17.
Article
em En
| MEDLINE
| ID: mdl-28368651
ABSTRACT
We report the first direct measurement of decays of the Λ_{c}^{+} baryon involving the neutron. The analysis is performed using 567 pb^{-1} of e^{+}e^{-} collision data collected at sqrt[s]=4.599 GeV with the BESIII detector at the BEPCII collider. We observe the decay Λ_{c}^{+}ânK_{S}^{0}π^{+} and measure the absolute branching fraction to be B(Λ_{c}^{+}ânK_{S}^{0}π^{+})=[1.82±0.23(stat)±0.11(syst)]%. A comparison to B[Λ_{c}^{+}âp(K[over ¯]π)^{0}] provides an important test of isospin symmetry and final state interactions.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Idioma:
En
Revista:
Phys Rev Lett
Ano de publicação:
2017
Tipo de documento:
Article
País de publicação:
EEUU
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ESTADOS UNIDOS
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ESTADOS UNIDOS DA AMERICA
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EUA
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UNITED STATES
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UNITED STATES OF AMERICA
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US
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USA