Measurement of the absolute branching fraction of the inclusive decay Λ¯c−→n¯+X

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Measurement of the absolute branching fraction of the inclusive decay Λ¯c−→n¯+X. / BESIII Collaboration ; Мучной, Николай Юрьевич ; Николаев, Иван Борисович.

In: Physical Review D, Vol. 108, No. 3, 031101, 03.08.2023.

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

BibTeX

@article{58ea7632b7ba47aabc421fe9a9683cfa,

title = "Measurement of the absolute branching fraction of the inclusive decay Λ¯c−→n¯+X",

abstract = "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.",

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

note = "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.",

year = "2023",

month = aug,

day = "3",

doi = "10.1103/PhysRevD.108.L031101",

language = "English",

volume = "108",

journal = "Physical Review D",

issn = "2470-0010",

publisher = "American Physical Society",

number = "3",

}

RIS

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