The (Sigma_Q-Lambda_Q) transition magnetic moments in light cone QCD sum rules

Details The (Sigma_Q-Lambda_Q) transition magnetic moments in light cone QCD sum rules The (Sigma_Q-Lambda_Q) transition magnetic moments in light cone QCD sum rules

2001-10-04

arxiv.org/abs/hep-ph/0110074v2

Phys.Rev. D65 (2002) 096004

Physics

High Energy Physics

High Energy Physics - Phenomenology

15 pp, 6 figures (postscript formatted), LaTex formatted

Scientific paper

10.1103/PhysRevD.65.096004

Using the general form of (Sigma_Q) and (Lambda_Q) (Q=b or c) currents, (Sigma_Q-Lambda_Q) transition magnetic moments are calculated in framework of the light cone QCD sum rules method. In this approach nonperturbative effects are described by the photon wave functions and only two-particle photon wave functions are taken into account. Our predictions on transition magnetic moments are (mu_{Sigma_c Lambda_c} = - (1.5 pm 0.4) mu_N) and (mu_{Sigma_b Lambda_b} = - (1.6 pm 0.4) mu_N). A comparison of our results with the ones existing in the literature is given.

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