Study of e+e−→π+π−π0 at s from 2.00 to 3.08 GeV at BESIII

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Study of e+e−→π+π−π0 at s from 2.00 to 3.08 GeV at BESIII. / BESIII Collaboration ; Николаев, Иван Борисович ; Мучной, Николай Юрьевич.

In: Physical Review D, Vol. 110, No. 3, 032005, 06.08.2024.

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

BibTeX

@article{45ceab66901c4e1f9fdb8784873d8ab4,

title = "Study of e+e−→π+π−π0 at s from 2.00 to 3.08 GeV at BESIII",

abstract = "With the data samples taken at center-of-mass energies from 2.00 to 3.08 GeV with the BESIII detector at the BEPCII collider, a partial wave analysis on the e+e-→π+π-π0 process is performed. The Born cross sections for e+e-→π+π-π0 and its intermediate processes e+e-→ρπ and ρ(1450)π are measured as functions of s. The results for e+e-→π+π-π0 are consistent with previous results measured with the initial state radiation method within one standard deviation, and improve the uncertainty by a factor of ten. By fitting the line shapes of the Born cross sections for the e+e-→ρπ and e+e-→ρ(1450)π, a structure with mass M=2119±11±15 MeV/c2 and width Γ=69±30±5 MeV is observed with a significance of 5.9σ, where the first uncertainties are statistical and the second ones are systematic. This structure can be interpreted as an excited ω state. ",

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

year = "2024",

month = aug,

day = "6",

doi = "10.1103/PhysRevD.110.032005",

language = "English",

volume = "110",

journal = "Physical Review D",

issn = "2470-0010",

publisher = "American Physical Society",

number = "3",

}

RIS

TY - JOUR

T1 - Study of e+e−→π+π−π0 at s from 2.00 to 3.08 GeV at BESIII

AU - BESIII Collaboration

AU - Ablikim, M.

AU - Achasov, M. n.

AU - Николаев, Иван Борисович

AU - Мучной, Николай Юрьевич

PY - 2024/8/6

Y1 - 2024/8/6

N2 - With the data samples taken at center-of-mass energies from 2.00 to 3.08 GeV with the BESIII detector at the BEPCII collider, a partial wave analysis on the e+e-→π+π-π0 process is performed. The Born cross sections for e+e-→π+π-π0 and its intermediate processes e+e-→ρπ and ρ(1450)π are measured as functions of s. The results for e+e-→π+π-π0 are consistent with previous results measured with the initial state radiation method within one standard deviation, and improve the uncertainty by a factor of ten. By fitting the line shapes of the Born cross sections for the e+e-→ρπ and e+e-→ρ(1450)π, a structure with mass M=2119±11±15 MeV/c2 and width Γ=69±30±5 MeV is observed with a significance of 5.9σ, where the first uncertainties are statistical and the second ones are systematic. This structure can be interpreted as an excited ω state.

AB - With the data samples taken at center-of-mass energies from 2.00 to 3.08 GeV with the BESIII detector at the BEPCII collider, a partial wave analysis on the e+e-→π+π-π0 process is performed. The Born cross sections for e+e-→π+π-π0 and its intermediate processes e+e-→ρπ and ρ(1450)π are measured as functions of s. The results for e+e-→π+π-π0 are consistent with previous results measured with the initial state radiation method within one standard deviation, and improve the uncertainty by a factor of ten. By fitting the line shapes of the Born cross sections for the e+e-→ρπ and e+e-→ρ(1450)π, a structure with mass M=2119±11±15 MeV/c2 and width Γ=69±30±5 MeV is observed with a significance of 5.9σ, where the first uncertainties are statistical and the second ones are systematic. This structure can be interpreted as an excited ω state.

UR - https://www.scopus.com/record/display.uri?eid=2-s2.0-85200924330&origin=inward&txGid=31860962612fbdaef334edd87ffc7b34

U2 - 10.1103/PhysRevD.110.032005

DO - 10.1103/PhysRevD.110.032005

M3 - Article

VL - 110

JO - Physical Review D

JF - Physical Review D

SN - 2470-0010

IS - 3

M1 - 032005

ER -

ID: 62706895