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arXiv · hep-ph/9310372

On the Higher Order Corrections to Heavy Quark Effective Theory

Ashok Das
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Abstract

We show that the different ways of deriving the Heavy Quark Effective Theory (HQET) lead to equivalent theories. The equivalence can be established through a careful redefinition of the field variables. We demonstrate the equivalence to order ${1 \over m^5}$ in the presence of a constant electric field.

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Ashok Das. 1993-10-29. On the Higher Order Corrections to Heavy Quark Effective Theory. https://doi.org/10.1142/s0217732394000368

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