Observation of a narrow scalar meson at 1450 MeV in the reaction at 450 GeV/c using the CERN Omega spectrometer

Abatzis, S.; Antinori, F.; Barberis, D.; Barnes, R. P.; Bayes, A. C.; Beusch, W.; Carney, J. N.; Clewer, S.; Davies, J.; Bari, D. Di; Dodenhoff, C. J.; Evans, D.; Fini, R.A.; French, B. R.; Ghidini, B.; Girone, M.; Jachołkowski, A.; Kinson, J.B.; Kirk, A.; Kulchitsky, Y.; Lenti, V.; Loconsole, R.A.; Maljukov, S.; Manzari, V.; Minashvili, I. A.; Navach, F.; Norman, K.L.; Quercigh, E.; Romanovsky, V.; Russakovich, N.; Semenov, A.; Sené, M.; Sené, R.; Solovjev, A.G.; Tchlatchidze, G.; Vassiliadis, G.; Vichou, I.; Bailie, O. Villalobos; Votruba, M.F.

doi:10.1016/0370-2693(94)90231-3

Cited by 59 publications

(47 citation statements)

References 7 publications

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“…Since the f 2 (1950) is clearly seen in the 4π final state of experiment WA102 [21], an upper limit for its decay to ηη has been calculated and gives…”

mentioning

confidence: 99%

A study of the ηη channel produced in central pp interactions at 450 GeV/c

Barberis

Binon

et al. 2000

Physics Letters B

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“…Since the f 2 (1950) is clearly seen in the 4π final state of experiment WA102 [21], an upper limit for its decay to ηη has been calculated and gives…”

mentioning

confidence: 99%

A study of the ηη channel produced in central pp interactions at 450 GeV/c

Barberis

Binon

et al. 2000

Physics Letters B

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“…Recently several groups claimed different scalar isoscalar structures close to 1500 MeV, including: 1) a narrow state with mass 1445 ± 5 MeV and width 65 ± 10 MeV seen by the WA91 collaboration at CERN in central production of 4π in high-energy pp collisions [6], 2) the lightest of the three states with masses 1505 MeV, 1750 MeV and 2104 MeV revealed upon reanalyzing of data on J/Ψ → γ2π + 2π − [7], and 3) the f 0 (1400), f 0 (1500), f 0 (1520). The masses, widths and decay branching ratios of these states are incompatible within the errors quoted by the groups.…”

mentioning

confidence: 99%

Towards resolution of the scalar meson nonet enigma

Burakovsky

1997

Found Phys

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The new SU(3) nonet mass formula 2M 2 (ss)+3M 2 (nn, I = 1) = 4M 2 (sn)+ M 2 (nn, I = 0) (n = u, d), obtained in our previous paper by using Regge phenomenology, is rederived for the pseudoscalar and scalar mesons in the Nambu-Jona-Lasinio model with instanton-induced interaction and applied to the problem of the correct qq assignment for the scalar meson nonet. The results strongly favor the masses of the scalar isoscalar mostly octet and mostly singlet states in the vicinity of 1.45 GeV and 1.1 GeV, respectively.

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“…Experimentally measured glueball candidates for the scalar glueball states are the f 0 (1500) and the f J (1710) [10] in central production as well as other gluon-rich reactions such aspp annihilation, and radiative J/ψ decay [11]. The spin of the f J (1710) is not yet confirmed, indications for both spin 2 and spin 0 have been reported.…”

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confidence: 99%

Hadron Spectroscopy in Double Pomeron Exchange Processes with the STAR Detector at RHIC

Lee¹,

Credé²,

Eugenio³

et al. 2010

AIP Conference Proceedings

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Abstract. A new hadron spectroscopy program to study particle production at the central region through diffractive processes in polarized p+ p collisions at √ s = 200 -500 GeV has been initiated with the STAR detector at RHIC. Staged implementation of multiple Roman Pot stations for tagging forward protons in diffractive processes allows studying for the first time the dynamics of the particle production in the diffractive processes systematically at the RHIC energy regime. The STAR detector system with complete azimuthal coverage at the central region equipped with excellent particle reconstruction capabilities enables studies of the constituent gluonic degree of freedom in double Pomeron exchange processes.

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Observation of a narrow scalar meson at 1450 MeV in the reaction at 450 GeV/c using the CERN Omega spectrometer

Cited by 59 publications

References 7 publications

A study of the ηη channel produced in central pp interactions at 450 GeV/c

A study of the ηη channel produced in central pp interactions at 450 GeV/c

Towards resolution of the scalar meson nonet enigma

Hadron Spectroscopy in Double Pomeron Exchange Processes with the STAR Detector at RHIC

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