TY - JOUR
T1 - Measurement of the branching fractions of the singly Cabibbo-suppressed decays Λ + c → pη and Λ + c → pω
AU - BESIII Collaboration
AU - Ablikim, M.
AU - Achasov, M. N.
AU - Kalantar-Nayestanaki, N.
AU - Kappert, R.
AU - Kavatsyuk, M.
AU - Messchendorp, J.
AU - Rodin, V.
PY - 2023/11
Y1 - 2023/11
N2 - Based on 4.5 fb−1 e + e − collision data collected with BESIII detector at seven energy points between 4.600 and 4.699 GeV, the branching fractions for Λc+→pη and Λc+→pω were measured by means of single-tag method. The branching fractions of Λc+→pη and Λc+→pω are determined to be (1.57 ± 0.11stat ± 0.04syst) × 10−3 and (1.11 ± 0.20stat ± 0.07syst) × 10−3, with a statistical significance of greater than 10σ and 5.7σ, respectively. These results are consistent with the previous measurements by BESIII, LHCb and Belle, and the result of Λc+→pη is the most precise to date.
AB - Based on 4.5 fb−1 e + e − collision data collected with BESIII detector at seven energy points between 4.600 and 4.699 GeV, the branching fractions for Λc+→pη and Λc+→pω were measured by means of single-tag method. The branching fractions of Λc+→pη and Λc+→pω are determined to be (1.57 ± 0.11stat ± 0.04syst) × 10−3 and (1.11 ± 0.20stat ± 0.07syst) × 10−3, with a statistical significance of greater than 10σ and 5.7σ, respectively. These results are consistent with the previous measurements by BESIII, LHCb and Belle, and the result of Λc+→pη is the most precise to date.
U2 - 10.1007/JHEP11(2023)137
DO - 10.1007/JHEP11(2023)137
M3 - Article
SN - 1126-6708
VL - 2023
JO - Journal of High Energy Physics
JF - Journal of High Energy Physics
IS - 11
M1 - 137
ER -