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UNDERSTANDING OPEN-CHARM MESONS

J. VIJANDE

Grupo de Física Nuclear and IUFFyM, Universidad de Salamanca, E-37008 Salamanca, Spain

Also at: Dpto. de Física Teórica and IFIC, Universidad de Valencia - CSIC, E-46100 Burjassot, Valencia, Spain.

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F. FERNÁNDEZ

Grupo de Física Nuclear and IUFFyM, Universidad de Salamanca, E-37008 Salamanca, Spain

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, and

A. VALCARCE

Grupo de Física Nuclear and IUFFyM, Universidad de Salamanca, E-37008 Salamanca, Spain

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https://doi.org/10.1142/S0217751X07035811Cited by:0 (Source: Crossref)

Abstract

We present a theoretical framework that accounts for the new D_J and D_sJ mesons measured in the open-charm sector. These resonances are properly described if considered as a mixture of conventional P–wave quark-antiquark states and four-quark components. The narrowest states are basically P–wave quark-antiquark mesons, while the dominantly four-quark states are shifted above the corresponding two-meson threshold. We study the electromagnetic decay widths as basic tools to scrutiny their nature.

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Vol. 22, No. 02n03

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UNDERSTANDING OPEN-CHARM MESONS

Abstract

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