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.

Measurement of the branching fractions of the singly Cabibbo-suppressed decays Λ+c → pη and Λ+c → pω

I. Garzia;S. Gramigna;
2023

Abstract

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.
2023
Ablikim, M.; Achasov, M. N.; Adlarson, P.; Aliberti, R.; Amoroso, A.; An, M. R.; An, Q.; Bai, Y.; Bakina, O.; Balossino, I.; Ban, Y.; Batozskaya, V.; ...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11392/2530626
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