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First measurements of the absolute branching fraction of Λc(2625)+→Λc+π+π− and upper limit on Λc(2595)+→Λc+π+π−. / BESIII Collaboration ; Николаев, Иван Борисович; Мучной, Николай Юрьевич.

In: Physical Review D, Vol. 109, No. 11, 112007, 05.06.2024.

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

Harvard

BESIII Collaboration, Николаев, ИБ & Мучной, НЮ 2024, 'First measurements of the absolute branching fraction of Λc(2625)+→Λc+π+π− and upper limit on Λc(2595)+→Λc+π+π−', Physical Review D, vol. 109, no. 11, 112007. https://doi.org/10.1103/PhysRevD.109.112007

APA

BESIII Collaboration, Николаев, И. Б., & Мучной, Н. Ю. (2024). First measurements of the absolute branching fraction of Λc(2625)+→Λc+π+π− and upper limit on Λc(2595)+→Λc+π+π−. Physical Review D, 109(11), [112007]. https://doi.org/10.1103/PhysRevD.109.112007

Vancouver

BESIII Collaboration, Николаев ИБ, Мучной НЮ. First measurements of the absolute branching fraction of Λc(2625)+→Λc+π+π− and upper limit on Λc(2595)+→Λc+π+π−. Physical Review D. 2024 Jun 5;109(11):112007. doi: 10.1103/PhysRevD.109.112007

Author

BESIII Collaboration ; Николаев, Иван Борисович ; Мучной, Николай Юрьевич. / First measurements of the absolute branching fraction of Λc(2625)+→Λc+π+π− and upper limit on Λc(2595)+→Λc+π+π−. In: Physical Review D. 2024 ; Vol. 109, No. 11.

BibTeX

@article{8b285c4d4a08428b869a766185313001,
title = "First measurements of the absolute branching fraction of Λc(2625)+→Λc+π+π− and upper limit on Λc(2595)+→Λc+π+π−",
abstract = "The absolute branching fraction of the decay Λc(2625)+→Λc+π+π- is measured for the first time to be (50.2±5.7stat±3.5syst)% with 368.48 pb-1 of e+e- collision data collected by the BESIII detector at the center-of-mass energies of s=4.918 and 4.950 GeV. Although the central value of the result is lower than the theoretical prediction of 67%, obtained from isospin symmetry, they are consistent taking the uncertainties into account. This is the first absolute branching fraction measurement for Λc(2625)+ since it was found. This measurement is necessary to obtain the coupling constants for the transitions between s-wave and p-wave charmed baryons in heavy hadron chiral perturbation theory. In addition, we search for the decay Λc(2595)+→Λc+π+π-. No significant signal is observed, and the upper limit on its branching fraction is determined to be 85.0% at the 90% confidence level. ",
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 H.-R. Bao 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 Николаев, {Иван Борисович} and Мучной, {Николай Юрьевич}",
year = "2024",
month = jun,
day = "5",
doi = "10.1103/PhysRevD.109.112007",
language = "English",
volume = "109",
journal = "Physical Review D",
issn = "2470-0010",
publisher = "AMER PHYSICAL SOC",
number = "11",

}

RIS

TY - JOUR

T1 - First measurements of the absolute branching fraction of Λc(2625)+→Λc+π+π− and upper limit on Λc(2595)+→Λc+π+π−

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 - Bao, H.-R.

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 - Николаев, Иван Борисович

AU - Мучной, Николай Юрьевич

PY - 2024/6/5

Y1 - 2024/6/5

N2 - The absolute branching fraction of the decay Λc(2625)+→Λc+π+π- is measured for the first time to be (50.2±5.7stat±3.5syst)% with 368.48 pb-1 of e+e- collision data collected by the BESIII detector at the center-of-mass energies of s=4.918 and 4.950 GeV. Although the central value of the result is lower than the theoretical prediction of 67%, obtained from isospin symmetry, they are consistent taking the uncertainties into account. This is the first absolute branching fraction measurement for Λc(2625)+ since it was found. This measurement is necessary to obtain the coupling constants for the transitions between s-wave and p-wave charmed baryons in heavy hadron chiral perturbation theory. In addition, we search for the decay Λc(2595)+→Λc+π+π-. No significant signal is observed, and the upper limit on its branching fraction is determined to be 85.0% at the 90% confidence level.

AB - The absolute branching fraction of the decay Λc(2625)+→Λc+π+π- is measured for the first time to be (50.2±5.7stat±3.5syst)% with 368.48 pb-1 of e+e- collision data collected by the BESIII detector at the center-of-mass energies of s=4.918 and 4.950 GeV. Although the central value of the result is lower than the theoretical prediction of 67%, obtained from isospin symmetry, they are consistent taking the uncertainties into account. This is the first absolute branching fraction measurement for Λc(2625)+ since it was found. This measurement is necessary to obtain the coupling constants for the transitions between s-wave and p-wave charmed baryons in heavy hadron chiral perturbation theory. In addition, we search for the decay Λc(2595)+→Λc+π+π-. No significant signal is observed, and the upper limit on its branching fraction is determined to be 85.0% at the 90% confidence level.

UR - https://www.scopus.com/record/display.uri?eid=2-s2.0-85196221751&origin=inward&txGid=511bc4fd23420b24fa9b4fe0e4af1820

U2 - 10.1103/PhysRevD.109.112007

DO - 10.1103/PhysRevD.109.112007

M3 - Article

VL - 109

JO - Physical Review D

JF - Physical Review D

SN - 2470-0010

IS - 11

M1 - 112007

ER -

ID: 62710381