25–28 Sept 2007
DESY Hamburg
Europe/Berlin timezone

Diquark masses from AdS/QCD potential

27 Sept 2007, 17:30
30m
Sem. 4a (DESY Hamburg)

Sem. 4a

DESY Hamburg

DESY Theory Group Notkestrasse 85 D-22603 Hamburg Germany

Speaker

Ms Floriana Giannuzzi (University of Bari and INFN sezione di Bari)

Description

AdS/QCD correspondence is able to predict quark-antiquark potential in the static limit [1]. We use this piece of information together with the Salpeter equation (Schroedinger equation with relativistic kinematics) and a short range hyperfine splitting potential to determine quark masses and quark potential parameters. Assuming a quark-diquark structure for the S-wave low-lying baryons allows to determine light diquark masses. A discussion of heavy diquark masses, based on the hypothesis of a diquark-antidiquark structure for the states X(3872) and X(3940) [2] is also presented. [1] O. Andreev and V. Zakharov, Phys. Rev. D 74 (2006) 025023 [arXiv: hep-ph/0604204]. [2] L. Maiani, F. Piccinini, A.D. Polosa, V. Riquer, Phys. Rev. D 71 (2005) 014028 [arXiv: hep-ph/0412098].

Primary authors

Ms Floriana Giannuzzi (University of Bari and INFN sezione di Bari) Prof. Giuseppe Nardulli (University of Bari and INFN sezione di Bari) Ms Maria Valentina Carlucci (University of Bari) Prof. Mario Pellicoro (University of Bari and INFN sezione di Bari) Prof. Sebastiano Stramaglia (University of Bari and INFN sezione di Bari)

Presentation materials