Study of the reactions π+p → π0 Δ++(1236), ηΔ++(1236) and η′Δ++(1236) at 16 GeV/c

Honecker, R.; Laven, H.; Becker, L.; Klein, Ryan A.; Lohmann, W.; Schreiber, H. J.; Böckmann, K.; Lowsky, J.; Hodous, M.F.; Kostka, P.; Morrison, D. R. O.; Schmid, Patrick; Zalewski, K.

doi:10.1016/0550-3213(77)90369-8

Cited by 10 publications

(2 citation statements)

References 25 publications

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“…For the three-pion annihilation amplitude we assume an s-dependent invariant matrix element extracted from the fit of the pn → π − π − π + cross section, see GeV/c are from ref. [38], [39], and [40], respectively.…”

Section: C4 N N → πππmentioning

confidence: 99%

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Theoretical study of the $Δ^{++}-Δ^-$ configuration in the deuteron using antiproton beam

Larionov,

Gillitzer,

Haidenbauer

et al. 2018

Preprint

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We study the manifestation of the ∆ ++ − ∆ − component of the deuteron wave function in the exclusive reaction pd → π − π − ∆ ++ . Due to the large binding energy the internal motion in the ∆ − ∆ system is relativistic. We take this into account within the light-cone (LC) wave function formalism and, indeed, found large differences between calculations based on the LC and nonrelativistic (NR) wave functions. We demonstrate, that the consistent LC treatment of the ∆ − ∆ system plays the key role in the separation of the signal and background. Within the LC approach, the characteristic shape of the momentum distribution of the ∆−∆ bound system predicted by the meson-exchange model is well visible on the background of usual annihilations at beam momenta between 10 and 15 GeV/c.

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Section: C4 N N → πππmentioning

confidence: 99%

“…Experimental data at 3.6 GeV/c, 5.45 GeV/c, and 16 GeV/c are from ref [38],[39],. and[40], respectively.…”

mentioning

confidence: 99%

Theoretical study of the $Δ^{++}-Δ^-$ configuration in the deuteron using antiproton beam

Larionov,

Gillitzer,

Haidenbauer

et al. 2018

Preprint

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A Partial Wave Analysis of the Reaction π⁺p→ (π⁺π⁻π⁰) Δ⁺⁺ at 16 GeV/c

et al. 1980

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A partial wave analysis of the 332-system has been performed for the reaction n+p -+ (n+z-no) A++ (1232) at 1G GeV/c. Beside the well-established A2 (1300), the resonant state w* with isospin I = 0 and spin-parity J p = 3-decaying mainly into (en) hae been found. Its mass and width have been determined to be M = (1.71 f 0.03) GeV and r = (0.22 & 0.10) GeV. The cross section for the reaction n+p --z w* (1700) A++ (1232) is u = (12 & 6) kb. Eine Partialwellenanalyse der Reaktion z+ p-+(n+n-#)d + + bei 16 GeV/c Strahlimpuls Inhaltsubersicht. Fur die Reaktion n+p += (rc+n-d) A++ (1232) wurde bei 16 GeV/c eine Partialwellenanalyae des Dreipionsystems durchgefuhrt. Neben der gutbekannten Resonanz A: (1300) wurde der Reaonanzzustand w* mit Isospin I = 0 und Spinparitiit J p = 3-in seinem Hauptzerfallskanal (en) gefunden. Masse und Breite wurden zu M = (1.71 0,03) GeV und r = (0.22 & 0,lO) GeV bestimmt. Der Wirkungsquerschnitt fur die Reaktion , +p + w* (1700) A++ (1233) betriigt u = (12 -J = 6) pb.

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Walle¹

1982

Pointlike Structures Inside and Outside Hadrons

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Study of the reactions π+p → π0 Δ++(1236), ηΔ++(1236) and η′Δ++(1236) at 16 GeV/c

Cited by 10 publications

References 25 publications

Theoretical study of the $Δ^{++}-Δ^-$ configuration in the deuteron using antiproton beam

Theoretical study of the $Δ^{++}-Δ^-$ configuration in the deuteron using antiproton beam

A Partial Wave Analysis of the Reaction π⁺p→ (π⁺π⁻π⁰) Δ⁺⁺ at 16 GeV/c

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Study of the reactions π+p → π0 Δ++(1236), ηΔ++(1236) and η′Δ++(1236) at 16 GeV/c

Cited by 10 publications

References 25 publications

Theoretical study of the $Δ^{++}-Δ^-$ configuration in the deuteron using antiproton beam

Theoretical study of the $Δ^{++}-Δ^-$ configuration in the deuteron using antiproton beam

A Partial Wave Analysis of the Reaction π+p→ (π+π−π0) Δ++ at 16 GeV/c

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A Partial Wave Analysis of the Reaction π⁺p→ (π⁺π⁻π⁰) Δ⁺⁺ at 16 GeV/c