Order (1/m_Q) Corrections to Masses of Excited Heavy Mesons From QCD Sum Rules

The $O(1\mathrm{/}{m}_Q)$ corrections to masses of excited heavy mesons are studied with sum rules in the heavy quark effective theory. Numerical results for the matrix elements of the heavy quark kinetic energy operator K and chromomagnetic interaction operator S are obtained for the lowest excited doublets $(0^+, 1^+)$and$(1^+, 2^+)$.