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Precise measurement of the branching fractions of J/ψ→Λ¯π+Σ−+c.c. and J/ψ→Λ¯π−Σ++c.c. / The BESIII Collaboration ; Мучной, Николай Юрьевич; Николаев, Иван Борисович.
в: Physical Review D, Том 108, № 11, 112012, 21.12.2023.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Precise measurement of the branching fractions of J/ψ→Λ¯π+Σ−+c.c. and J/ψ→Λ¯π−Σ++c.c.
AU - BESIII Collaboration
AU - Ablikim, M.
AU - Achasov, M. n.
AU - Мучной, Николай Юрьевич
AU - Николаев, Иван Борисович
N1 - Precise measurement of the branching fractions of J/ψ→Λ¯π+Σ−+c.c. and J/ψ→Λ¯π−Σ++c.c. / BESIII Collaboration // Physical Review D. – 2023. – Vol. 108, No. 11. – P. 112012. – DOI 10.1103/physrevd.108.112012.
PY - 2023/12/21
Y1 - 2023/12/21
N2 - Based on a data sample of (10087±44)×106 J/ψ events collected with the BESIII detector, the branching fraction of J/ψ→Λ¯π+ς-+c.c. is measured to be (1.221±0.002±0.038)×10-3, and the branching fraction of its isospin partner mode J/ψ→Λ¯π-ς++c.c. is measured to be (1.244±0.002±0.045)×10-3 with improved precision. Here the first uncertainties are statistical and the second ones systematic. The isospin symmetry of the ς baryon in charmonium hadronic decay and the "12% rule"are tested, and no violation is found. The potential of using these channels as ς baryon sources for nuclear physics research is studied, and the momentum and angular distributions of these sources are provided.
AB - Based on a data sample of (10087±44)×106 J/ψ events collected with the BESIII detector, the branching fraction of J/ψ→Λ¯π+ς-+c.c. is measured to be (1.221±0.002±0.038)×10-3, and the branching fraction of its isospin partner mode J/ψ→Λ¯π-ς++c.c. is measured to be (1.244±0.002±0.045)×10-3 with improved precision. Here the first uncertainties are statistical and the second ones systematic. The isospin symmetry of the ς baryon in charmonium hadronic decay and the "12% rule"are tested, and no violation is found. The potential of using these channels as ς baryon sources for nuclear physics research is studied, and the momentum and angular distributions of these sources are provided.
UR - https://www.elibrary.ru/item.asp?id=65490322
UR - https://www.mendeley.com/catalogue/046d1946-16fc-3de8-97c0-8d1dc82a584f/
U2 - 10.1103/PhysRevD.108.112012
DO - 10.1103/PhysRevD.108.112012
M3 - Article
VL - 108
JO - Physical Review D
JF - Physical Review D
SN - 2470-0010
IS - 11
M1 - 112012
ER -
ID: 68347201