Three I=0 JPC=2−+ mesons

Anisovich, A. V.; Baker, C.A.; Batty, C.J.; Bugg, D.V.; Cooper, Anthony R.; Hodd, C.; Nikonov, V. A.; Sarantsev, A.; Sarantsev, V.V.; Zou, B. S.

doi:10.1016/s0370-2693(00)00236-7

Cited by 24 publications

(45 citation statements)

References 15 publications

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“…[3]. This is much smaller than the value 20.4 ± 6.6 claimed by the WA102 collaboration in central production of ηππ [4].…”

Section: Introductionmentioning

confidence: 60%

“…4π 0 and ηηπ 0 π 0 . This background is known accurately and is discussed in the earlier publication [3]; it is in the range 7.7-9.6%, increasing slowly with beam momentum. We can dispose of channels (5) and (6) quickly.…”

Section: Methodology and Formulae For Fitting Datamentioning

confidence: 86%

“…2(a) of Ref. [3]. It was fitted using the 1993 parametrisation of the σ amplitude by Zou and Bugg [18].…”

Section: The Treatment Of Phase Spacementioning

confidence: 99%

“…The objective of this paper is to re-examine data from Crystal Barrel (CBAR) [1][2][3] concerning η 2 (1645), η 2 (1870), η 2 (2030) and f 2 (1910). One motivation is to study a large discrepancy for branching ratios of η 2 (1870).…”

Section: Introductionmentioning

confidence: 99%

“…1 of Ref. [3] presents spectra at 1800 MeV/c. This section gives more detailed comparisons with data in further figures.…”

Section: Introductionmentioning

confidence: 99%

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A fresh look at η 2(1645), η 2(1870), η 2(2030) and f 2(1910) in $\bar{p}p \to \eta \pi ^{0}\pi ^{0}\pi ^{0}$

et al. 2011

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An extensive re-analysis of the Crystal Barrel data redetermines branching ratios for decays of η 2 (1870), η 2 (1645), η 2 (2030) and f 2 (1910). This re-analysis confirms a small value for R of 1.60±0.39, inconsistent with the value 20.4± 6.6 of WA102. The likely origin of the discrepancy is that the WA102 data contain a strong f 2 (1910) → a 2 π signal as well as η 2 (1870). There is strong evidence that the η 2 (1870) has resonant phase variation. A peak in f 2 (1270)a 0 (980) confirms closely the parameters of the a 2 (2255) resonance observed previously. A peak in η 2 (2030)π is interpreted naturally in terms of π 2 (2245) with reduced errors for mass and width M = 2285 ± 20(stat) ± 25(syst) MeV, Γ = 250 ± 20(stat) ± 25(syst) MeV.

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“…[3]. This is much smaller than the value 20.4 ± 6.6 claimed by the WA102 collaboration in central production of ηππ [4].…”

Section: Introductionmentioning

confidence: 60%

Section: Methodology and Formulae For Fitting Datamentioning

confidence: 86%

“…2(a) of Ref. [3]. It was fitted using the 1993 parametrisation of the σ amplitude by Zou and Bugg [18].…”

Section: The Treatment Of Phase Spacementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

“…1 of Ref. [3] presents spectra at 1800 MeV/c. This section gives more detailed comparisons with data in further figures.…”