Scalar mesons and tetraquarks by means of lattice QCD
- We study the light scalar mesons a_0(980) and kappa using N_f = 2+1+1 flavor lattice QCD. In order to probe the internal structure of these scalar mesons, and in particular to identify, whether a sizeable tetraquark component is present, we use a large set of operators, including diquark-antidiquark, mesonic molecule and two-meson operators. The inclusion of disconnected diagrams, which are technically rather challenging, but which would allow us to extend our work to e.g. the f_0(980) meson, is introduced and discussed.
Author: | Marc WagnerORCiDGND, Constantia AlexandrouORCiDGND, Jan Oliver Daldrop, Mattia Dalla BridaORCiDGND, Mario Gravina, Luigi Scorzato, Carsten UrbachORCiDGND, Christian Wiese |
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URN: | urn:nbn:de:hebis:30:3-277357 |
ISSN: | 1824-8039 |
ArXiv Id: | http://arxiv.org/abs/1212.1648 |
Parent Title (English): | Proceedings of Science |
Publisher: | Scuola Internazionale Superiore di Studi Avanzati |
Place of publication: | Trieste |
Document Type: | Conference Proceeding |
Language: | English |
Date of Publication (online): | 2012/12/07 |
Date of first Publication: | 2012/12/07 |
Publishing Institution: | Universitätsbibliothek Johann Christian Senckenberg |
Release Date: | 2012/12/13 |
Volume: | 2012 |
Page Number: | 8 |
First Page: | 1 |
Last Page: | 8 |
Note: | Xth Quark Confinement and the Hadron Spectrum. 8-12 October 2012. TUM Campus Garching, Munich, Germany |
HeBIS-PPN: | 416425488 |
Institutes: | Physik / Physik |
Dewey Decimal Classification: | 5 Naturwissenschaften und Mathematik / 53 Physik / 530 Physik |
Sammlungen: | Universitätspublikationen |
Licence (German): | Creative Commons - Namensnennung-Keine kommerzielle Nutzung-Weitergabe unter gleichen Bedingungen |