Structure within the R(1675) boson and possible structure within the A2(1290)

Levrat, B.; Tolstrup, C.A.; Schübelin, P.; Nef, C.; Martin, M. Aldaya; Maglić, B.; Kienzle, W.; Focacci, M.N.; Dubal, L.; Chikovani, G.E.

doi:10.1016/0031-9163(66)90716-5

Cited by 38 publications

(8 citation statements)

References 9 publications

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“…We now discuss the assignment of the three peaks ^(1630), R 2 (1700), and fl 3 (1750) seen with the CERN missing-mass spectrometer, 10 with the three peaks of a J PG = 3"" + tripole (see Fig. 1).…”

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confidence: 99%

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Are ThereJth Order Resonances of SpinJ?

1970

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It is suggested that the sequence p, A 2 , R, 5, • • • is a sequence of multipole resonances. Thus, the A 2 is a doubled resonance, the R is a tripled resonance, and so on. This hypothesis is consistent with present experimental data. The multipole resonance hypothesis is related to narrow-width resonance models in which undesirable states are eliminated with the aid of satellite Veneziano terms. The high-energy behavior is similar to normal Regge Behavior.

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confidence: 99%

“…At CERN, where A 2 s are produced in 7 GeV/c~ir~p collisions, double peaks are observed in all decay modes. 7 In their study of 7 GeV/e-7r + £, A 2 production experiments, the Berkeley group observes single peaks in all decay modes. 8 We emphasize that this situation is consistent with the doubled-resonance hypothesis for the A 2 .…”

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confidence: 99%

Are ThereJth Order Resonances of SpinJ?

1970

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“…The value of f can be close to 0 for many reasons (I = 0 and C t (1) It: = 1 90' outgof phase for given 1; M CO), M. nonzero only for i j i j, etc. ), so that deviations from 0 would be a stringent restriction on exchange models.…”

Section: IIImentioning

confidence: 99%

“…1 (1,2) where the components 1, 2, refer to A2 , and r, n label production and decay channels. The transition matrix is then given in the presence of mixing by…”

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confidence: 99%

THEORETICAL REMARKS ON THE A$sub 2$ MESON.

Rosner¹

1971

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“…137, B438 (1965). 7 It is possible to relate TJ --7r + 7r +y and the vector amplitude in K\^ using SU(3) invariance; considering the pseudoscalar octet to be degenerate (i.e., equal mass for 7r and 17). V. I. Zakharov, Yadern.…”

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confidence: 99%