Width of a two-body coupled-channel resonance

H. Garcilazo; A. Valcarce

doi:10.1140/epjc/s10052-018-5747-7

Width of a two-body coupled-channel resonance

H. Garcilazo, A. Valcarce

Escuela Superior de Física y Matemáticas (ESFM)

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9 Scopus citations

Abstract

We study the width of a two-body resonance in a coupled-channel system. We demonstrate how the width does not come only determined by the available phase space for its decay to the detection channel, but it greatly depends on the relative position of the mass of the resonance with respect to the masses of the coupled-channels generating the state. Our results are consistent with the experimental observation of narrow hadrons lying well above their lowest decay threshold.

Original language	English
Article number	259
Journal	European Physical Journal C
Volume	78
Issue number	3
DOIs	https://doi.org/10.1140/epjc/s10052-018-5747-7
State	Published - 1 Mar 2018

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title = "Width of a two-body coupled-channel resonance",

abstract = "We study the width of a two-body resonance in a coupled-channel system. We demonstrate how the width does not come only determined by the available phase space for its decay to the detection channel, but it greatly depends on the relative position of the mass of the resonance with respect to the masses of the coupled-channels generating the state. Our results are consistent with the experimental observation of narrow hadrons lying well above their lowest decay threshold.",

author = "H. Garcilazo and A. Valcarce",

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AU - Valcarce, A.

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N2 - We study the width of a two-body resonance in a coupled-channel system. We demonstrate how the width does not come only determined by the available phase space for its decay to the detection channel, but it greatly depends on the relative position of the mass of the resonance with respect to the masses of the coupled-channels generating the state. Our results are consistent with the experimental observation of narrow hadrons lying well above their lowest decay threshold.

AB - We study the width of a two-body resonance in a coupled-channel system. We demonstrate how the width does not come only determined by the available phase space for its decay to the detection channel, but it greatly depends on the relative position of the mass of the resonance with respect to the masses of the coupled-channels generating the state. Our results are consistent with the experimental observation of narrow hadrons lying well above their lowest decay threshold.

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U2 - 10.1140/epjc/s10052-018-5747-7

DO - 10.1140/epjc/s10052-018-5747-7

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SN - 1434-6044

VL - 78

JO - European Physical Journal C

JF - European Physical Journal C

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Width of a two-body coupled-channel resonance

Abstract

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