Eur. Phys. J. C (2013) 73: 2302
https://doi.org/10.1140/epjc/s10052-013-2302-4

Regular Article - Theoretical Physics

Light-cone distribution amplitudes of the ground state bottom baryons in HQET

¹ Deutsches Elektronen-Synchrotron DESY, 22607, Hamburg, Germany
² Technische Universität Dortmund, 44221, Dortmund, Germany
³ P.G. Demidov Yaroslavl State University, 150000, Yaroslavl, Russia

^* e-mail: ahmed.ali@desy.de

Received: 14 December 2012
Published online: 8 February 2013

Abstract

We provide the definition of the complete set of light-cone distribution amplitudes (LCDAs) for the ground state heavy bottom baryons with the spin-parities J ^P =1/2⁺ and J ^P =3/2⁺ in the heavy quark limit. We present the renormalization effects on the twist-2 light-cone distribution amplitudes and use the QCD sum rules to compute the moments of twist-2, twist-3, and twist-4 LCDAs. Simple models for the heavy baryon distribution amplitudes are analyzed with account of their scale dependence.