First Observation of eta(1405) Decays into f(0)(980)pi(0)

O. Bondarenko; N. Kalantar-Nayestanaki; M. Kavatsyuk; H. Loehner; J. G. Messchendorp; BESIII Collaboration

doi:10.1103/PhysRevLett.108.182001

First Observation of eta(1405) Decays into f(0)(980)pi(0)

O. Bondarenko
, N. Kalantar-Nayestanaki
, M. Kavatsyuk
, H. Loehner
, J. G. Messchendorp
, BESIII Collaboration

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The decays J/psi -> gamma pi(+)pi(-)pi(0) and J/psi ->gamma pi(0)pi(0)pi(0) are analyzed using a sample of 225 X 10(6) J/psi events collected with the BESIII detector. The decay of eta(1405) -> f(0)(980)pi(0) with a large isospin violation is observed for the first time. The width of the f(0)(980) observed in the dipion mass spectra is anomalously narrower than the world average. Decay rates for three-pion decays of the eta' are also measured precisely.

Originele taal-2	English
Artikelnummer	182001
Aantal pagina's	6
Tijdschrift	Physical Review Letters
Volume	108
Nummer van het tijdschrift	18
DOI's	https://doi.org/10.1103/PhysRevLett.108.182001
Status	Published - 3-mei-2012

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title = "First Observation of eta(1405) Decays into f(0)(980)pi(0)",

abstract = "The decays J/psi -> gamma pi(+)pi(-)pi(0) and J/psi ->gamma pi(0)pi(0)pi(0) are analyzed using a sample of 225 X 10(6) J/psi events collected with the BESIII detector. The decay of eta(1405) -> f(0)(980)pi(0) with a large isospin violation is observed for the first time. The width of the f(0)(980) observed in the dipion mass spectra is anomalously narrower than the world average. Decay rates for three-pion decays of the eta' are also measured precisely.",

keywords = "MESONS, SEARCH, STATES, REST",

author = "O. Bondarenko and N. Kalantar-Nayestanaki and M. Kavatsyuk and H. Loehner and Messchendorp, \{J. G.\} and \{BESIII Collaboration\}",

year = "2012",

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doi = "10.1103/PhysRevLett.108.182001",

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T1 - First Observation of eta(1405) Decays into f(0)(980)pi(0)

AU - Bondarenko, O.

AU - Kalantar-Nayestanaki, N.

AU - Kavatsyuk, M.

AU - Loehner, H.

AU - Messchendorp, J. G.

AU - BESIII Collaboration

PY - 2012/5/3

Y1 - 2012/5/3

N2 - The decays J/psi -> gamma pi(+)pi(-)pi(0) and J/psi ->gamma pi(0)pi(0)pi(0) are analyzed using a sample of 225 X 10(6) J/psi events collected with the BESIII detector. The decay of eta(1405) -> f(0)(980)pi(0) with a large isospin violation is observed for the first time. The width of the f(0)(980) observed in the dipion mass spectra is anomalously narrower than the world average. Decay rates for three-pion decays of the eta' are also measured precisely.

AB - The decays J/psi -> gamma pi(+)pi(-)pi(0) and J/psi ->gamma pi(0)pi(0)pi(0) are analyzed using a sample of 225 X 10(6) J/psi events collected with the BESIII detector. The decay of eta(1405) -> f(0)(980)pi(0) with a large isospin violation is observed for the first time. The width of the f(0)(980) observed in the dipion mass spectra is anomalously narrower than the world average. Decay rates for three-pion decays of the eta' are also measured precisely.

KW - MESONS

KW - SEARCH

KW - STATES

KW - REST

U2 - 10.1103/PhysRevLett.108.182001

DO - 10.1103/PhysRevLett.108.182001

M3 - Article

SN - 0031-9007

VL - 108

JO - Physical Review Letters

JF - Physical Review Letters

IS - 18

M1 - 182001

ER -

First Observation of eta(1405) Decays into f(0)(980)pi(0)

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