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Measurement of the absolute branching fraction of the inclusive decay Λ¯c−→n¯+X. / The BESIII Collaboration ; Мучной, Николай Юрьевич; Николаев, Иван Борисович.
в: Physical Review D, Том 108, № 3, 031101, 03.08.2023.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Measurement of the absolute branching fraction of the inclusive decay Λ¯c−→n¯+X
AU - BESIII Collaboration
AU - Ablikim, M.
AU - Achasov, M. n.
AU - Мучной, Николай Юрьевич
AU - Николаев, Иван Борисович
N1 - Measurement of the absolute branching fraction of the inclusive decay Λ¯c−→n¯+X / BESIII Collaboration // Physical Review D. – 2023. – Vol. 108, No. 3. – P. L031101. – DOI 10.1103/physrevd.108.l031101.
PY - 2023/8/3
Y1 - 2023/8/3
N2 - Based on e+e- collision data corresponding to an integrated luminosity of 4.5 fb-1 collected at the center-of-mass energies between 4.600 and 4.699 GeV with the BESIII detector at BEPCII, the absolute branching fraction of the inclusive decay Λ¯c-→n¯+X, where X refers to any possible final state particles, is measured. The absolute branching fraction is determined to be B(Λ¯c-→n¯+X)=(32.4±0.7±1.5)%, where the first uncertainty is statistical and the second systematic. Assuming CP symmetry, the measurement indicates that about one fourth of Λc+ (Λ¯c-) decay modes with a neutron (an antineutron) in the final state have not been observed.
AB - Based on e+e- collision data corresponding to an integrated luminosity of 4.5 fb-1 collected at the center-of-mass energies between 4.600 and 4.699 GeV with the BESIII detector at BEPCII, the absolute branching fraction of the inclusive decay Λ¯c-→n¯+X, where X refers to any possible final state particles, is measured. The absolute branching fraction is determined to be B(Λ¯c-→n¯+X)=(32.4±0.7±1.5)%, where the first uncertainty is statistical and the second systematic. Assuming CP symmetry, the measurement indicates that about one fourth of Λc+ (Λ¯c-) decay modes with a neutron (an antineutron) in the final state have not been observed.
UR - https://www.elibrary.ru/item.asp?id=62907525
UR - https://www.mendeley.com/catalogue/03dc86f9-ec89-3c1a-b462-1f25d6e568e0/
U2 - 10.1103/PhysRevD.108.L031101
DO - 10.1103/PhysRevD.108.L031101
M3 - Article
VL - 108
JO - Physical Review D
JF - Physical Review D
SN - 2470-0010
IS - 3
M1 - 031101
ER -
ID: 68345278