Mixing Angle of Hadrons in QCD: A New View

Details Mixing Angle of Hadrons in QCD: A New View Mixing Angle of Hadrons in QCD: A New View

2010-07-06

arxiv.org/abs/1007.0814v2

Phys.Rev.D83:016008,2011

Physics

High Energy Physics

High Energy Physics - Phenomenology

10 pages, 4 figures, 1 table, Changes in the text only

Scientific paper

10.1103/PhysRevD.83.016008

A new method for calculation of the mixing angle between the hadrons within QCD sum rules is proposed. In this method, the mixing is expressed in terms of quark and gluon degrees of freedom. As an application, the detailed calculation of the mixing angle between heavy cascade baryons Xi_Q and Xi_Q', Q=c,~b is presented and it is found that the mixing angle between Xi_b (Xi_c) and Xi_b' (Xi_c') is given by theta_b = 6.4^\circ \pm 1.8 ^\circ (theta_c = 5.5^\circ \pm 1.8^\circ).

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