The Second Moment of the Pion Light Cone Wave Function
نویسنده
چکیده
We present a preliminary result for second moment of the light cone wave function of the pion. This parameter is the subject of a discrepancy between theoretical predictions (coming from lattice and sum rules) and a recent experimental result (that remarkably agrees with purely perturbative predictions). In this work we exploit lattice hypercubic symmetries to remove power divergences and, moreover, implement a full 1-loop matching for all the contributing operators.
منابع مشابه
Pion light-cone wave function and pion distribution amplitude in the Nambu–Jona-Lasinio model
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