Phases of resonant amplitudes: πN → πΔ

D. Faiman; J. Rosner

doi:10.1016/0370-2693(73)90054-3

Phases of resonant amplitudes: πN → πΔ

D. Faiman, J. Rosner

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Abstract

The phases of resonant amplitudes in πN → πΔ are studied in a modified version of SU(6)_W in which amplitudes involving different relative orbital angular momenta l are uncoupled form one another. This form of SU(6)_W is equivalent to one studied recently by Melosh, in which the set of selection rules for decays is extended to allow for more types of transition than in the original version of this symmetry. The predictions are compared with a recent preliminary analysis by Herndon et al. Even the extended ("l-broken") version of SU(6)_W is found to disagree with the present experimental solution. If this solution persists, it constitutes the strongest present evidence against such a symmetry.

Original language	English
Pages (from-to)	357-360
Number of pages	4
Journal	Physics Letters B
Volume	45
Issue number	4
DOIs	https://doi.org/10.1016/0370-2693(73)90054-3
State	Published - 6 Aug 1973
Externally published	Yes

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Nuclear and High Energy Physics

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10.1016/0370-2693(73)90054-3

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title = "Phases of resonant amplitudes: πN → πΔ",

abstract = "The phases of resonant amplitudes in πN → πΔ are studied in a modified version of SU(6)W in which amplitudes involving different relative orbital angular momenta l are uncoupled form one another. This form of SU(6)W is equivalent to one studied recently by Melosh, in which the set of selection rules for decays is extended to allow for more types of transition than in the original version of this symmetry. The predictions are compared with a recent preliminary analysis by Herndon et al. Even the extended ({"}l-broken{"}) version of SU(6)W is found to disagree with the present experimental solution. If this solution persists, it constitutes the strongest present evidence against such a symmetry.",

author = "D. Faiman and J. Rosner",

year = "1973",

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doi = "10.1016/0370-2693(73)90054-3",

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T1 - Phases of resonant amplitudes

T2 - πN → πΔ

AU - Faiman, D.

AU - Rosner, J.

PY - 1973/8/6

Y1 - 1973/8/6

N2 - The phases of resonant amplitudes in πN → πΔ are studied in a modified version of SU(6)W in which amplitudes involving different relative orbital angular momenta l are uncoupled form one another. This form of SU(6)W is equivalent to one studied recently by Melosh, in which the set of selection rules for decays is extended to allow for more types of transition than in the original version of this symmetry. The predictions are compared with a recent preliminary analysis by Herndon et al. Even the extended ("l-broken") version of SU(6)W is found to disagree with the present experimental solution. If this solution persists, it constitutes the strongest present evidence against such a symmetry.

AB - The phases of resonant amplitudes in πN → πΔ are studied in a modified version of SU(6)W in which amplitudes involving different relative orbital angular momenta l are uncoupled form one another. This form of SU(6)W is equivalent to one studied recently by Melosh, in which the set of selection rules for decays is extended to allow for more types of transition than in the original version of this symmetry. The predictions are compared with a recent preliminary analysis by Herndon et al. Even the extended ("l-broken") version of SU(6)W is found to disagree with the present experimental solution. If this solution persists, it constitutes the strongest present evidence against such a symmetry.

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U2 - 10.1016/0370-2693(73)90054-3

DO - 10.1016/0370-2693(73)90054-3

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SN - 0370-2693

VL - 45

SP - 357

EP - 360

JO - Physics Letters B

JF - Physics Letters B

IS - 4

ER -

Phases of resonant amplitudes: πN → πΔ

Abstract

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