Measurement of the absolute branching fractions of $\Lambda_{c}^{+}\to\Lambda\eta\pi^{+}$ and $\Sigma(1385)^{+}\eta$ - INSPIRE

DataBETA

Measurement of the absolute branching fractions of $\Lambda_{c}^{+}\to\Lambda\eta\pi^{+}$ and $\Sigma(1385)^{+}\eta$

BESIII

Collaboration

Dec 27, 2018

9 pages

Published in:

Phys.Rev.D 99 (2019) 3, 032010

Published: Feb 20, 2019

e-Print:

1812.10731 [hep-ex]

DOI:

10.1103/PhysRevD.99.032010

PDG:

{{\mathit \Lambda}_{{{c}}}^{+}}

\rightarrow

{{\mathit \Lambda}}{{\mathit \pi}^{+}}{{\mathit \eta}}

Experiments:

BEPC-BES-III

View in:

ADS Abstract Service

reference search31 citations

Citations per year

Abstract: (APS)

We study the decays Λc+→Ληπ+ and Σ(1385)+η based on Λc+Λ¯c- pairs produced in e+e- collisions at a center-of-mass energy of s=4.6 GeV, corresponding to an integrated luminosity of 567 pb-1. The data sample was accumulated with the BESIII detector at the BEPCII collider. The branching fractions are measured to be B(Λc+→Ληπ+)=(1.84±0.21(stat)±0.15(syst))% and B(Λc+→Σ(1385)+η)=(0.91±0.18(stat)±0.09(syst))%, constituting the most precise measurements to date.

Particle Physics Experiments
electron positron: annihilation
electron positron: colliding beams
Lambda/c+: pair production
Lambda/c+: hadronic decay
Sigma(1385)
Lambda/c+: branching ratio: measured
Beijing Stor
BES
experimental results

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