2012•Communications in Theoretical PhysicsOpen access

Mass of X (3872) in Bethe—Salpeter Equation for Quarks

Xiaozhao Chen, Ranhui Liu, Renbin Shi, Yuqin Yin, Zonghua Shi, Aihong Yang, Xiaofu Lü

Abstract

From Bethe—Salpeter equation, we deduce the equation which describes the two-body system consisting of a scalar meson and a vector meson. This equation is applied to investigate the exotic narrow state X(3872) assumed as a molecule state composed of D 0 * 0 . The contribution of the resonance * 0 is the attractive interaction between two heavy mesons in this molecule state. The calculated mass of X is consistent with the experimental data.

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Key concepts: Bethe–Salpeter equation, Physics, Meson, Scalar (mathematics), Quark, X(3872), Particle physics, Resonance (particle physics)