TY - JOUR
T1 - Measurement of the absolute branching fraction of the three-body decay Λc+ → Ξ0K+π0 and search for Λc+ →nK+π0, ς0K+π0, and Λk+π0
AU - Ablikim, M.
AU - Achasov, M. N.
AU - Adlarson, P.
AU - Afedulidis, O.
AU - Kabana, S.
AU - The BESIII collaboration
N1 - Publisher Copyright:
© 2024 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the "https://creativecommons.org/licenses/by/4.0/"Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. Funded by SCOAP3.
PY - 2024/3/1
Y1 - 2024/3/1
N2 - The Cabbibo-favored decay Λc+→Ξ0K+π0 is studied for the first time using 6.1 fb-1 of e+e- collision data at center-of-mass energies between 4.600 and 4.840 GeV, collected with the BESIII detector at the BEPCII collider. With a double-tag method, the branching fraction of the three-body decay Λc+→Ξ0K+π0 is measured to be (7.79±1.46±0.95)×10-3, where the first and second uncertainties are statistical and systematic, respectively. The branching fraction of the two-body decay Λc+→Ξ(1530)0K+ is (5.99±1.04±0.32)×10-3, which is consistent with the previous result of (5.02±0.99±0.31)×10-3. In addition, the upper limit on the branching fraction of the doubly Cabbibo-suppressed decay Λc+→nK+π0 is 7.1×10-4 at the 90% confidence level. The upper limits on the branching fractions of Λc+→ς0K+π0 and ΛK+π0 are also determined to be 1.8×10-3 and 2.0×10-3, respectively.
AB - The Cabbibo-favored decay Λc+→Ξ0K+π0 is studied for the first time using 6.1 fb-1 of e+e- collision data at center-of-mass energies between 4.600 and 4.840 GeV, collected with the BESIII detector at the BEPCII collider. With a double-tag method, the branching fraction of the three-body decay Λc+→Ξ0K+π0 is measured to be (7.79±1.46±0.95)×10-3, where the first and second uncertainties are statistical and systematic, respectively. The branching fraction of the two-body decay Λc+→Ξ(1530)0K+ is (5.99±1.04±0.32)×10-3, which is consistent with the previous result of (5.02±0.99±0.31)×10-3. In addition, the upper limit on the branching fraction of the doubly Cabbibo-suppressed decay Λc+→nK+π0 is 7.1×10-4 at the 90% confidence level. The upper limits on the branching fractions of Λc+→ς0K+π0 and ΛK+π0 are also determined to be 1.8×10-3 and 2.0×10-3, respectively.
UR - https://www.scopus.com/pages/publications/85187494206
U2 - 10.1103/PhysRevD.109.052001
DO - 10.1103/PhysRevD.109.052001
M3 - Article
AN - SCOPUS:85187494206
SN - 2470-0010
VL - 109
JO - Physical Review D
JF - Physical Review D
IS - 5
M1 - 052001
ER -