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Measurement of the branching fraction of $\Lambda_c^+ \to p \omega$ decay at Belle
- Source :
- Phys. Rev. D 104, 072008 (2021)
- Publication Year :
- 2021
-
Abstract
- Using 980.6 $\rm fb^{-1}$ of data collected with the Belle detector operating at the KEKB asymmetric-energy $e^+e^-$ collider, we present a measurement of the branching fraction of the singly Cabibbo-suppressed decay $\Lambda_c^+ \to p \omega$. A clear $\Lambda_c^+$ signal is observed for $\Lambda_c^+ \to p \omega$ with a statistical significance of 9.1 standard deviations, and we measure the ratio of branching fractions ${\cal B}(\Lambda_c^+ \to p \omega)/{\cal B}(\Lambda_c^+ \to p K^- \pi^+) = (1.32 \pm 0.12 (\rm stat) \pm 0.10 (\rm syst))\times 10^{-2}$, from which we infer the branching fraction ${\cal B}(\Lambda_c^+ \to p \omega) = (8.27 \pm 0.75 (\rm stat) \pm 0.62 (\rm syst) \pm 0.42 (\rm ref))\times 10^{-4}$. The first quoted uncertainty is statistical, the second systematic, and the third from the reference mode $\Lambda_c^+ \to p K^- \pi^+$.<br />Comment: 9 pages, 3 figures, 1 table; accepted for publication as a Regular Article in Physical Review D
- Subjects :
- High Energy Physics - Experiment
High Energy Physics - Phenomenology
Subjects
Details
- Database :
- arXiv
- Journal :
- Phys. Rev. D 104, 072008 (2021)
- Publication Type :
- Report
- Accession number :
- edsarx.2108.11301
- Document Type :
- Working Paper
- Full Text :
- https://doi.org/10.1103/PhysRevD.104.072008