Precise measurement of the branching fractions of J/ψ→Λ¯π+Σ−+c.c. and J/ψ→Λ¯π−Σ++c.c.

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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. / BESIII Collaboration ; Мучной, Николай Юрьевич ; Николаев, Иван Борисович.

In: Physical Review D, Vol. 108, No. 11, 112012, 21.12.2023.

Research output: Contribution to journal › Article › peer-review

BibTeX

@article{38ece926585b48c8abad01895ecf32b5,

title = "Precise measurement of the branching fractions of J/ψ→Λ¯π+Σ−+c.c. and J/ψ→Λ¯π−Σ++c.c.",

abstract = "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.",

author = "{BESIII Collaboration} and M. Ablikim and M. n. Achasov and Мучной, {Николай Юрьевич} and Николаев, {Иван Борисович}",

note = "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.",

year = "2023",

month = dec,

day = "21",

doi = "10.1103/PhysRevD.108.112012",

language = "English",

volume = "108",

journal = "Physical Review D",

issn = "2470-0010",

publisher = "American Physical Society",

number = "11",

}

RIS

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