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First Measurement of the Decay Asymmetry in the Pure W-Boson-Exchange Decay Λ_{c}^{+}→Ξ^{0}K^{+}. / BESIII Collaboration ; Николаев, Иван Борисович; Мучной, Николай Юрьевич.

In: Physical Review Letters, Vol. 132, No. 3, 031801, 17.01.2024, p. 031801.

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

Harvard

BESIII Collaboration, Николаев, ИБ & Мучной, НЮ 2024, 'First Measurement of the Decay Asymmetry in the Pure W-Boson-Exchange Decay Λ_{c}^{+}→Ξ^{0}K^{+}', Physical Review Letters, vol. 132, no. 3, 031801, pp. 031801. https://doi.org/10.1103/PhysRevLett.132.031801

APA

BESIII Collaboration, Николаев, И. Б., & Мучной, Н. Ю. (2024). First Measurement of the Decay Asymmetry in the Pure W-Boson-Exchange Decay Λ_{c}^{+}→Ξ^{0}K^{+}. Physical Review Letters, 132(3), 031801. [031801]. https://doi.org/10.1103/PhysRevLett.132.031801

Vancouver

BESIII Collaboration, Николаев ИБ, Мучной НЮ. First Measurement of the Decay Asymmetry in the Pure W-Boson-Exchange Decay Λ_{c}^{+}→Ξ^{0}K^{+}. Physical Review Letters. 2024 Jan 17;132(3):031801. 031801. doi: 10.1103/PhysRevLett.132.031801

Author

BESIII Collaboration ; Николаев, Иван Борисович ; Мучной, Николай Юрьевич. / First Measurement of the Decay Asymmetry in the Pure W-Boson-Exchange Decay Λ_{c}^{+}→Ξ^{0}K^{+}. In: Physical Review Letters. 2024 ; Vol. 132, No. 3. pp. 031801.

BibTeX

@article{8fcd8dbccf8f4fa893f5e97e018ea293,
title = "First Measurement of the Decay Asymmetry in the Pure W-Boson-Exchange Decay Λ_{c}^{+}→Ξ^{0}K^{+}",
abstract = "Based on 4.4  fb^{-1} of e^{+}e^{-} annihilation data collected at the center-of-mass energies between 4.60 and 4.70 GeV with the BESIII detector at the BEPCII collider, the pure W-boson-exchange decay Λ_{c}^{+}→Ξ^{0}K^{+} is studied with a full angular analysis. The corresponding decay asymmetry is measured for the first time to be α_{Ξ^{0}K^{+}}=0.01±0.16(stat)±0.03(syst). This result reflects the noninterference effect between the S- and P-wave amplitudes. The phase shift between S- and P-wave amplitudes has two solutions, which are δ_{p}-δ_{s}=-1.55±0.25(stat)±0.05(syst)  rad or 1.59±0.25(stat)±0.05(syst)  rad.",
author = "{BESIII Collaboration} and M. Ablikim and M. n. Achasov and P. Adlarson and X. c. Ai and R. Aliberti and A. Amoroso and M. r. An and Q. An and Y. Bai and O. Bakina and I. Balossino and Y. Ban and V. Batozskaya and K. Begzsuren and N. Berger and M. Berlowski and M. Bertani and D. Bettoni and F. Bianchi and E. Bianco and A. Bortone and R. a. Briere and A. Brueggemann and H. Cai and X. Cai and A. Calcaterra and G. f. Cao and N. Cao and Николаев, {Иван Борисович} and Мучной, {Николай Юрьевич}",
year = "2024",
month = jan,
day = "17",
doi = "10.1103/PhysRevLett.132.031801",
language = "English",
volume = "132",
pages = "031801",
journal = "Physical Review Letters",
issn = "0031-9007",
publisher = "American Physical Society",
number = "3",

}

RIS

TY - JOUR

T1 - First Measurement of the Decay Asymmetry in the Pure W-Boson-Exchange Decay Λ_{c}^{+}→Ξ^{0}K^{+}

AU - BESIII Collaboration

AU - Ablikim, M.

AU - Achasov, M. n.

AU - Adlarson, P.

AU - Ai, X. c.

AU - Aliberti, R.

AU - Amoroso, A.

AU - An, M. r.

AU - An, Q.

AU - Bai, Y.

AU - Bakina, O.

AU - Balossino, I.

AU - Ban, Y.

AU - Batozskaya, V.

AU - Begzsuren, K.

AU - Berger, N.

AU - Berlowski, M.

AU - Bertani, M.

AU - Bettoni, D.

AU - Bianchi, F.

AU - Bianco, E.

AU - Bortone, A.

AU - Briere, R. a.

AU - Brueggemann, A.

AU - Cai, H.

AU - Cai, X.

AU - Calcaterra, A.

AU - Cao, G. f.

AU - Cao, N.

AU - Николаев, Иван Борисович

AU - Мучной, Николай Юрьевич

PY - 2024/1/17

Y1 - 2024/1/17

N2 - Based on 4.4  fb^{-1} of e^{+}e^{-} annihilation data collected at the center-of-mass energies between 4.60 and 4.70 GeV with the BESIII detector at the BEPCII collider, the pure W-boson-exchange decay Λ_{c}^{+}→Ξ^{0}K^{+} is studied with a full angular analysis. The corresponding decay asymmetry is measured for the first time to be α_{Ξ^{0}K^{+}}=0.01±0.16(stat)±0.03(syst). This result reflects the noninterference effect between the S- and P-wave amplitudes. The phase shift between S- and P-wave amplitudes has two solutions, which are δ_{p}-δ_{s}=-1.55±0.25(stat)±0.05(syst)  rad or 1.59±0.25(stat)±0.05(syst)  rad.

AB - Based on 4.4  fb^{-1} of e^{+}e^{-} annihilation data collected at the center-of-mass energies between 4.60 and 4.70 GeV with the BESIII detector at the BEPCII collider, the pure W-boson-exchange decay Λ_{c}^{+}→Ξ^{0}K^{+} is studied with a full angular analysis. The corresponding decay asymmetry is measured for the first time to be α_{Ξ^{0}K^{+}}=0.01±0.16(stat)±0.03(syst). This result reflects the noninterference effect between the S- and P-wave amplitudes. The phase shift between S- and P-wave amplitudes has two solutions, which are δ_{p}-δ_{s}=-1.55±0.25(stat)±0.05(syst)  rad or 1.59±0.25(stat)±0.05(syst)  rad.

UR - https://www.scopus.com/record/display.uri?eid=2-s2.0-85183832736&origin=inward&txGid=1215c42dcf9650d2bff304d8fb82f441

UR - https://pubmed.ncbi.nlm.nih.gov/38307076/

U2 - 10.1103/PhysRevLett.132.031801

DO - 10.1103/PhysRevLett.132.031801

M3 - Article

C2 - 38307076

VL - 132

SP - 031801

JO - Physical Review Letters

JF - Physical Review Letters

SN - 0031-9007

IS - 3

M1 - 031801

ER -

ID: 62719038